WO2014059101A1 - Apparatuses, systems, and associated methods for forming porous masses for smoke filters - Google Patents
Apparatuses, systems, and associated methods for forming porous masses for smoke filters Download PDFInfo
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- WO2014059101A1 WO2014059101A1 PCT/US2013/064269 US2013064269W WO2014059101A1 WO 2014059101 A1 WO2014059101 A1 WO 2014059101A1 US 2013064269 W US2013064269 W US 2013064269W WO 2014059101 A1 WO2014059101 A1 WO 2014059101A1
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- Prior art keywords
- matrix material
- porous mass
- mold cavity
- porous
- length
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- IAIWVQXQOWNYOU-FPYGCLRLSA-N nitrofural Chemical compound NC(=O)N\N=C\C1=CC=C([N+]([O-])=O)O1 IAIWVQXQOWNYOU-FPYGCLRLSA-N 0.000 description 1
- 229960001907 nitrofurazone Drugs 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 229940087419 nonoxynol-9 Drugs 0.000 description 1
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- 229960001180 norfloxacin Drugs 0.000 description 1
- OGJPXUAPXNRGGI-UHFFFAOYSA-N norfloxacin Chemical compound C1=C2N(CC)C=C(C(O)=O)C(=O)C2=CC(F)=C1N1CCNCC1 OGJPXUAPXNRGGI-UHFFFAOYSA-N 0.000 description 1
- 239000001702 nutmeg Substances 0.000 description 1
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- 230000008520 organization Effects 0.000 description 1
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- 125000005702 oxyalkylene group Chemical group 0.000 description 1
- NRZWYNLTFLDQQX-UHFFFAOYSA-N p-tert-Amylphenol Chemical group CCC(C)(C)C1=CC=C(O)C=C1 NRZWYNLTFLDQQX-UHFFFAOYSA-N 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
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- 229960004236 pefloxacin Drugs 0.000 description 1
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- 239000008188 pellet Substances 0.000 description 1
- 229940049954 penicillin Drugs 0.000 description 1
- 229960003330 pentetic acid Drugs 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 238000004375 physisorption Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001485 poly(butyl acrylate) polymer Polymers 0.000 description 1
- 229920001490 poly(butyl methacrylate) polymer Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920001123 polycyclohexylenedimethylene terephthalate Polymers 0.000 description 1
- 239000011116 polymethylpentene Substances 0.000 description 1
- 229920000306 polymethylpentene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002215 polytrimethylene terephthalate Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- SCUZVMOVTVSBLE-UHFFFAOYSA-N prop-2-enenitrile;styrene Chemical compound C=CC#N.C=CC1=CC=CC=C1 SCUZVMOVTVSBLE-UHFFFAOYSA-N 0.000 description 1
- 235000013772 propylene glycol Nutrition 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- LISFMEBWQUVKPJ-UHFFFAOYSA-N quinolin-2-ol Chemical compound C1=CC=C2NC(=O)C=CC2=C1 LISFMEBWQUVKPJ-UHFFFAOYSA-N 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229960002477 riboflavin Drugs 0.000 description 1
- JQXXHWHPUNPDRT-WLSIYKJHSA-N rifampicin Chemical compound O([C@](C1=O)(C)O/C=C/[C@@H]([C@H]([C@@H](OC(C)=O)[C@H](C)[C@H](O)[C@H](C)[C@@H](O)[C@@H](C)\C=C\C=C(C)/C(=O)NC=2C(O)=C3C([O-])=C4C)C)OC)C4=C1C3=C(O)C=2\C=N\N1CC[NH+](C)CC1 JQXXHWHPUNPDRT-WLSIYKJHSA-N 0.000 description 1
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- 239000011435 rock Substances 0.000 description 1
- 235000013533 rum Nutrition 0.000 description 1
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical compound O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 description 1
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- 235000019355 sepiolite Nutrition 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 235000013874 shellac Nutrition 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- QDWYPRSFEZRKDK-UHFFFAOYSA-M sodium;sulfamate Chemical compound [Na+].NS([O-])(=O)=O QDWYPRSFEZRKDK-UHFFFAOYSA-M 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920000638 styrene acrylonitrile Polymers 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- 229940124530 sulfonamide Drugs 0.000 description 1
- 150000003456 sulfonamides Chemical class 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- UJMBCXLDXJUMFB-GLCFPVLVSA-K tartrazine Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)C1=NN(C=2C=CC(=CC=2)S([O-])(=O)=O)C(=O)C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 UJMBCXLDXJUMFB-GLCFPVLVSA-K 0.000 description 1
- 229960000943 tartrazine Drugs 0.000 description 1
- FBWNMEQMRUMQSO-UHFFFAOYSA-N tergitol NP-9 Chemical compound CCCCCCCCCC1=CC=C(OCCOCCOCCOCCOCCOCCOCCOCCOCCO)C=C1 FBWNMEQMRUMQSO-UHFFFAOYSA-N 0.000 description 1
- 229960002180 tetracycline Drugs 0.000 description 1
- 229930101283 tetracycline Natural products 0.000 description 1
- 235000019364 tetracycline Nutrition 0.000 description 1
- 150000003522 tetracyclines Chemical class 0.000 description 1
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 description 1
- DPJRMOMPQZCRJU-UHFFFAOYSA-M thiamine hydrochloride Chemical compound Cl.[Cl-].CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N DPJRMOMPQZCRJU-UHFFFAOYSA-M 0.000 description 1
- 239000001585 thymus vulgaris Substances 0.000 description 1
- 235000019505 tobacco product Nutrition 0.000 description 1
- 229940088660 tolu balsam Drugs 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229960003500 triclosan Drugs 0.000 description 1
- 239000010981 turquoise Substances 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- HGBOYTHUEUWSSQ-UHFFFAOYSA-N valeric aldehyde Natural products CCCCC=O HGBOYTHUEUWSSQ-UHFFFAOYSA-N 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 235000019155 vitamin A Nutrition 0.000 description 1
- 239000011719 vitamin A Substances 0.000 description 1
- 235000019164 vitamin B2 Nutrition 0.000 description 1
- 239000011716 vitamin B2 Substances 0.000 description 1
- 235000019154 vitamin C Nutrition 0.000 description 1
- 239000011718 vitamin C Substances 0.000 description 1
- 235000019166 vitamin D Nutrition 0.000 description 1
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- 150000003710 vitamin D derivatives Chemical class 0.000 description 1
- 235000019165 vitamin E Nutrition 0.000 description 1
- 239000011709 vitamin E Substances 0.000 description 1
- 229940046009 vitamin E Drugs 0.000 description 1
- 229940045997 vitamin a Drugs 0.000 description 1
- 229940046008 vitamin d Drugs 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
- 229920001345 ε-poly-D-lysine Polymers 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0229—Filter rod forming processes
- A24D3/0237—Filter rod forming processes by extrusion
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/47—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0229—Filter rod forming processes
- A24D3/0233—Filter rod forming processes by means of a garniture
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0229—Filter rod forming processes
- A24D3/0241—Filter rod forming processes by compacting particulated materials
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
- A24D3/0287—Manufacture of tobacco smoke filters for filters with special features for composite filters
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
- A24D3/066—Use of materials for tobacco smoke filters characterised by structural features in the form of foam or having cellular structure
Definitions
- the exemplary embodiments described herein relates to apparatuses, systems, and associated methods for manufacturing porous masses that may be used in smoke filters, including high-throughput production embodiments thereof.
- EPD encapsulated pressure drop
- Figures 1A-B illustrate nonlimiting examples of systems for forming porous masses according to at least one embodiment described herein (not necessarily to scale).
- Figures 2A-B illustrate nonlimiting examples of systems for forming porous masses according to at least one embodiment described herein (not necessarily to scale).
- Figure 3 illustrates a nonlimiting example of a system for forming porous masses according to at least one embodiment described herein (not necessarily to scale).
- Figure 4 illustrates a nonlimiting example of a system for forming porous masses according to at least one embodiment described herein (not necessarily to scale).
- Figure 5 illustrates a nonlimiting example of a system for forming porous masses according to at least one embodiment described herein (not necessarily to scale).
- Figure 6A illustrates a nonlimiting example of a system for forming porous masses according to at least one embodiment described herein (not necessarily to scale).
- Figure 6B illustrates a nonlimiting example of a system for forming porous masses according to at least one embodiment described herein (not necessarily to scale).
- Figure 7A illustrates a nonlimiting example of a system for forming porous masses according to at least one embodiment described herein (not necessarily to scale).
- Figure 7B illustrates a nonlimiting example of a system for forming porous masses according to at least one embodiment described herein (not necessarily to scale).
- Figure 8 illustrates a nonlimiting example of a system for forming porous masses according to at least one embodiment described herein (not necessarily to scale).
- Figure 9 illustrates a nonlimiting example of a system for forming porous masses according to at least one embodiment described herein (not necessarily to scale).
- Figure 10 illustrates a nonlimiting example of a system for forming porous masses according to at least one embodiment described herein (not necessarily to scale).
- Figure 11 illustrates a nonlimiting example of a system for forming porous masses according to at least one embodiment described herein (not necessarily to scale).
- Figure 12 illustrates a nonlimiting example of a system for forming porous masses according to at least one embodiment described herein (not necessarily to scale).
- Figure 13 shows an illustrative diagram of the process of producing combined filter rods according to at least some embodiments described herein.
- Figure 14 shows an illustrative diagram of relating to at least some methods of the described herein for forming filters according to at least some embodiments described herein.
- the exemplary embodiments described herein relates to apparatuses, systems, and associated methods for manufacturing porous masses that may be used in smoke filters, including high-throughput production embodiments thereof.
- Porous masses (described in co-pending PCT Application Number PCT/USl l/56388 filed on October 14, 2011, the entire disclosure of which is incorporated herein by reference) generally comprise a plurality of binder particles ⁇ e.g., polyethylene) and a plurality of active particles ⁇ e.g. , carbon particles or zeolites) mechanically bound at a plurality of contact points.
- binder particles e.g., polyethylene
- active particles e.g. , carbon particles or zeolites
- the contact points may be active particle-binder contact points, binder-binder contact points, active particle-active particle contact points, and any combination thereof.
- the terms "mechanical bond,” “mechanically bonded,” “physical bond,” and the like refer to a physical connection that holds two particles at least partially together. Mechanical bonding is generally a result of sintering. As such, when described herein, mechanical bonding encompasses embodiments where the plurality of binder particles and the plurality of active particles are mechanically bound at a plurality of sintered contact points. Mechanical bonds may be rigid or flexible depending on the bonding material. Mechanical bonding may or may not involve chemical bonding.
- the terms “particle” and “particulate” may be used interchangeably and include all known shapes of materials, including spherical and/or ovular, substantially spherical and/or ovular, discus and/or platelet, flake, ligamental, acicular, fibrous, polygonal (such as cubic), randomly shaped (such as the shape of crushed rocks), faceted (such as the shape of crystals), or any hybrid thereof.
- Porous masses may be produced through a variety of methods.
- some embodiments may involve forming the matrix material ⁇ e.g. , the active particles and binder particles) into a desired shape ⁇ e.g., with a mold), heating the matrix material to mechanically bond the matrix material together, and finishing the porous masses ⁇ e.g. , cutting the porous masses to a desired length).
- a desired shape e.g., with a mold
- heating the matrix material to mechanically bond the matrix material together e.g. , cutting the porous masses to a desired length
- finishing the porous masses e.g. , cutting the porous masses to a desired length.
- forming the matrix material into a desired shape while maintaining a homogenous dispersion and heating may be two of the steps that limits high-throughput manufacturing. Accordingly, methods that employ pneumatic dense phase feed may be involved in preferred methods for high- throughput manufacturing of porous masses described herein ⁇ e.g.
- a linear flow rate of about 1 m/min to about 800 m/min or about 300 m/min to about 800 m/min) e.g., a linear flow rate of about 1 m/min to about 800 m/min or about 300 m/min to about 800 m/min.
- rapid heating e.g. , microwave and optionally with the inclusions of a microwave enhancement add itive in the matrix material
- a preheating step e.g. , indirect heating or direct contact with heated gases
- a secondary sintering or heating may be used for quality control or to complete sintering when the rapid heating portion of the method is designed to sinter or mechanically bind a portion of the matrix material (e.g. , the outer portion).
- smoking device refers to articles or devices including, but not limited to, cigarettes, cigarette holders, cigars, cigar holders, pipes, water pipes, hookahs, electronic smoking devices, roll-your-own cigarettes, and/or cigars.
- the process of form ing porous masses may include continuous processing methods, batch processing methods, or hybrid continuous-batch processing methods.
- continuous processing refers to manufactu ring or producing materials without interru ption. Material flow may be continuous, indexed, or combinations of both .
- batch processing refers to manufacturing or producing materials as a single component or grou p of components at individual stations before the single component or group proceeds to the next station .
- continuous- batch processing refers to a hybrid of the two where some processes, or series of processes, occur continuously and others occur by batch .
- porous masses may be formed from matrix materials.
- matrix material refers to the precursors, e.g. , binder particles and active particles, used to form porous masses.
- the matrix material may comprise, consist of, or consist essentially of binder particles and active particles.
- the matrix material may comprise binder particles, active particles, and additives. Nonlimiting examples of suitable binder particles, active particles, and additives are provided in this disclosu re.
- Forming porous masses may generally include forming a matrix material into a desired shape (e.g. , su itable for incorporating into as smoking device filter, a water filter, an air filter, or the like) and mechanically bonding (e.g. , sintering) at least a portion of the matrix material at a plurality of contact points.
- a desired shape e.g. , su itable for incorporating into as smoking device filter, a water filter, an air filter, or the like
- mechanically bonding e.g. , sintering
- a mold cavity may be a single piece or a collection of single pieces, either with or without end caps, plates, or plugs.
- a mold cavity may be mu ltiple mold cavity parts that when assembled form a mold cavity.
- mold cavity parts may be brought together with the assistance of conveyors, belts, and the like.
- mold cavity parts may be stationary along the material path and configu red to allow for conveyors, belts, and the like to pass therethrough, where the mold cavity may expand and contract radially to provide a desired level of compression to the matrix material .
- a mold cavity may have any cross-sectional shape including, but not limited to, circu lar, substantially circular, ovular, substantially ovular, polygonal (like triangu lar, square, rectangular, pentagonal, and so on), polygonal with rounded edges, donut, and the like, or any hybrid thereof.
- porous masses may have a cross-sectional shape comprising holes, which may be achieved by the use of one or more dies, by machining, by an appropriately shaped mold cavity, or any other suitable method (e.g., degradation of a degradable material) .
- the porous mass may have a specific shape for a cigarette holder or pipe that is adapted to fit within the cigarette holder or pipe to allow for smoke passage through the filter to the consumer.
- shape may be referred to in terms of diameter or circumference (wherein the circumference is the perimeter of a circle) of the cross-section of the cylinder.
- circumference is used to mean the perimeter of any shaped cross-section, including a circular cross- section.
- mold cavities may have a longitudinal direction and a radial direction perpendicular to the longitudinal direction, e.g. , a substantially cylindrical shape.
- a mold cavity may have a cross-sectional shape that changes along the longitudinal direction, e.g. , a conical shape, a shape that transitions from square to circular, or a spiral.
- the longitudinal direction would be the machine direction or flow of matrix material direction.
- a mold cavity may be paper rolled or shaped into a desired cross-sectional shape, e.g. , a cylinder.
- a mold cavity may be a cylinder of paper glued at the longitudinal seam.
- mold cavities may have a longitudinal axis having an opening as a first end and a second end along said longitudinal axis.
- matrix material may pass along the longitudinal axis of a mold cavity during processing.
- Figure 1 shows mold cavity 120 with a longitudinal axis along material path 110.
- mold cavities may have a longitudinal axis having a first end and a second end along said longitudinal axis wherein at least one end is closed.
- said closed end may be capable of opening.
- individual mold cavities may be filled with a matrix material prior to mechanical bonding.
- a single mold cavity may be used to continuously produce porous masses by continuously passing matrix material therethrough before and/or during mechanical bonding.
- a single mold cavity may be used to produce an individual porous mass.
- said single mold cavity may be reused and/or continuously reused to produce a plurality of individual porous masses.
- mold cavities may be at least partially lined with wrappers and/or coated with release agents.
- wrappers may be individual wrappers, e.g. , pieces of paper.
- wrappers may be spoolable-length wrappers, e.g. , a 50 ft roll of paper.
- mold cavities may be lined with more than one wrapper.
- forming porous masses may include lining a mold cavity(s) with a wrapper(s).
- forming porous masses may include wrapping the matrix material with wrappers so that the wrapper effectively forms the mold cavity.
- the wrapper may be preformed as a mold cavity, formed as a mold cavity in the presence of the matrix material, or wrapped around matrix material that is in a preformed shape ⁇ e.g. , with the aid of a tackifier).
- wrappers may be continuously fed through a mold cavity. Wrappers may be capable of holding the porous mass in a shape, capable of releasing the porous masses from the mold cavities, capable of assisting in passing matrix material through the mold cavity, capable of protecting the porous mass during handling or shipment, and any combination thereof.
- Suitable wrappers may include, but not be limited to, papers ⁇ e.g. , wood-based papers, papers containing flax, flax papers, papers produced from other natural or synthetic fibers, functionalized papers, special marking papers, colorized papers), plastics ⁇ e.g. , fluorinated polymers like polytetrafluoroethylene, silicone), films, coated papers, coated plastics, coated films, and the like, and any combination thereof.
- wrappers may be papers suitable for use in smoking device filters.
- a wrapper may be adhered ⁇ e.g. , glued) to itself to assist in maintaining a desired shape, e.g., in a substantially cylindrical configuration.
- mechanical bonding of the matrix material may also mechanically bind (or sinter) the matrix material to the wrapper which may alleviate the need for adhering the wrapper to itself.
- Suitable release agents may be chemical release agents or physical release agents.
- Nonlimiting examples of chemical release agents may include oils, oil-based solutions and/or suspensions, soapy solutions and/or suspensions, coatings bonded to the mold surface, and the like, and any combination thereof.
- Nonlimiting examples of physical release agents may include papers, plastics, and any combination thereof.
- Physical release agents, which may be referred to as release wrappers, may be implemented similar to wrappers as described herein.
- the matrix material Once formed into a desired cross-sectional shape with the mold cavity, the matrix material may be mechanically bound at a plurality of contact points. Mechanical bonding may occur during and/or after the matrix material is in the mold cavity. Mechanical bonding may be achieved with heat and/or pressure and without adhesive (i.e. , forming a sintered contact points). In some instances, an adhesive may optionally be included.
- Heat may be radiant heat, conductive heat, convective heat, and any combination thereof. Heating may involve thermal sources including, but not limited to, heated fluids internal to the mold cavity, heated fluids external to the mold cavity, steam, heated inert gases, secondary radiation from a component of the porous mass (e.g. , nanoparticles, active particles, and the like), ovens, furnaces, flames, conductive or thermoelectric materials, ultrasonics, and the like, and any combination thereof.
- heating may involve a convection oven or heating block.
- Another nonlimiting example may involve heating with microwave energy (single-mode or multi-mode applicator).
- heating may involve passing heated air, nitrogen, or other gas through the matrix material while in the mold cavity.
- heated inert gases may be used to mitigate any unwanted oxidation of active particles and/or additives.
- Another nonlimiting example may involve mold cavities made of thermoelectric materials so that the mold cavity heats.
- heating may involve a combination of the foregoing, e.g., passing heated gas through the matrix material while passing the matrix material through a microwave oven.
- Secondary radiation from a component of the porous mass may, in some embodiments, be achieved by irradiating the component with electromagnetic radiation, e.g. , gamma-rays, x-rays, UV light, visible light, IR light, microwaves, radio waves, and/or long radio waves.
- electromagnetic radiation e.g. , gamma-rays, x-rays, UV light, visible light, IR light, microwaves, radio waves, and/or long radio waves.
- the matrix material may comprise carbon nanotubes that when irradiated with radio frequency waves emit heat.
- the matrix material may comprise active particles like carbon particles that are capable of converting microwave irradiation into heat that mechanically bonds or assists in mechanically bonding (e.g. , sintering) the binder particles together.
- the electromagnetic radiation may be tuned by the frequency and power level so as to appropriately interact with the component of choice.
- activated carbon may be used in conjunction with microwaves at a frequency ranging from about 900 MHz to about 2500 MHz with a fixed or adjustable power setting that is selected to match a target rate of heating.
- the residence time for heating may be for a length of time ranging from a lower limit of about a hundredth of a second, a tenth of a second, 1 second, 5 seconds, 30 seconds, or 1 minute to an upper limit of about 30 minutes, 15 minutes, 5 minutes, 1 minute, or 1 second, and wherein the residence time may range from any lower limit to any upper limit and encompasses any subset therebetween. It should be noted that for continuous processes that utilize faster heating methods, e.g.
- short residence times may be preferred, e.g. , about 10 seconds or less, or more preferably about 1 second or less.
- processing methods that utilize processes like convection heating may provide for longer residence times on the timescale of minutes, which may include residence times of greater than 30 minutes.
- longer times can be applicable, e.g. , seconds to minutes to hours or longer provided that an appropriate temperature and heating profile may be selected for a given matrix material.
- preheating or pretreating methods and/or steps that are not to a sufficient temperature and/or pressure to allow for mechanical bonding are not considered part of the residence time, as used herein.
- heating to facilitate mechanical bonding may be to a softening temperature of a component of the matrix material.
- softening temperature refers to the temperature above which a material becomes pliable, which is typically below the melting point of the material.
- mechanical bonding may be achieved at temperatures ranging from a lower limit of about 90°C, 100°C, 110°C, 120°C, 130°C, or 140°C or an upper limit of about 300°C, 275°C, 250°C, 225°C, 200°C, 175°C, or 150°C, and wherein the temperature may range from any lower limit to any upper limit and encompass any subset therebetween.
- the heating may be accomplished by subjecting material to a single temperature.
- the temperature profile may vary with time.
- a convection oven may be used.
- heating may be localized within the matrix material.
- secondary radiation from nanoparticles may heat only the matrix material proximal to the nanoparticle.
- matrix materials may be preheated before entering mold cavities.
- matrix material may be preheated to a temperature below the softening temperature of a component of the matrix material.
- matrix material may be preheated to a temperature about 10%, about 5%, or about 1% below the softening temperature of a component of the matrix material.
- matrix material may be preheated to a temperature about 10°C, about 5°C, or about 1°C below the softening temperature of a component of the matrix material. Preheating may involve heat sources including, but not limited to, those listed as heat sources above for achieving mechanical bonding.
- bonding the matrix material may yield porous mass or porous mass lengths.
- porous mass length refers to a continuous porous mass (i.e. , a porous mass that is not never-ending, but rather long compared to porous masses, which may be produced continuously).
- porous mass lengths may be produced by continuously passing matrix material through a heated mold cavity.
- the binder particles may retain their original physical shape (or substantially retained their original shape, e.g. , no more that 10% variation (e.g. , shrinkage) in shape from original) during the mechanical bonding process, i.e.
- the binder particles may be substantially the same shape in the matrix material and in the porous mass (or lengths).
- porous mass encompasses porous mass sections, porous masses, and porous mass lengths (wrapped or otherwise).
- porous mass lengths may be cut to yield porous mass.
- Cutting may be achieved with a cutter.
- Suitable cutters may include, but not be limited to, blades, hot blades, carbide blades, stellite blades, ceramic blades, hardened steel blades, diamond blades, smooth blades, serrated blades, lasers, pressurized fluids, liquid lances, gas lances, guillotines, and the like, and any combination thereof.
- cutting blades or similar devices may be positioned at an angle to match the speed of processing so as to yield porous masses with ends perpendicular to the longitudinal axis.
- the cutter may change position relative to the porous mass lengths along the longitudinal axis of the porous mass lengths.
- porous masses and/or porous mass lengths may be extruded.
- extrusion may involve a die.
- a die may have multiple holes being capable of extruding porous masses and/or porous mass lengths.
- Some embodiments may involve cutting porous masses and/or porous mass lengths radially to yield porous masses and/or porous mass sections.
- One skilled in the art would recognize how radial cutting translates to and encompasses the cutting of shapes like sheets. Cutting may be achieved by any known method with any known apparatus including, but not limited to, those described above in relation to cutting porous mass lengths into porous masses.
- the length of a porous mass, or sections thereof may range from a lower limit of about 2 mm, 3 mm, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, or 30 mm to an upper limit of about 150 mm, 100 mm, 50 mm, 25 mm, 15 mm, or 10 mm, and wherein the length may range from any lower limit to any upper limit and encompass any subset therebetween.
- the circumference of a porous mass length, a porous mass, or sections thereof may range from a lower limit of about 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, or 26 mm to an upper limit of about 60 mm, 50 mm, 40 mm, 30 mm, 20 mm, 29 mm, 28 mm, 27 mm, 26 mm, 25 mm, 24 mm, 23 mm, 22 mm, 21 mm, 20 mm, 19 mm, 18 mm, 17 mm, or 16 mm, wherein the circumference may range from any lower limit to any upper limit and encompass any subset there between.
- porous masses configured for use in concentric fluid filters may be hollow cylinders with an outer diameter of about 250 mm or greater.
- porous masses configure for use as a sheet in an air filter may have a relatively thin thickness (e.g. , about 5 mm to about 50 mm) with a length and width that are tens of centimeters.
- Some embodiments may involve wrapping porous masses with a wrapper after the matrix material has been mechanically bound, e.g. , after removal from the mold cavity or exiting an extrusion die.
- Suitable wrappers include those disclosed above.
- Some embodiments may involve cooling porous masses. Cooling may be active or passive, i.e., cooling may be assisted or occur naturally. Active cooling may involve passing a fluid over and/or through the mold cavity, porous masses; decreasing the temperature of the local environment about the mold cavity, porous masses, e.g., passing through a refrigerated component; and any combination thereof. Active cooling may involve a component that may include, but not be limited to, cooling coils, fluid jets, thermoelectric materials, and any combination thereof. The rate of cooling may be random or it may be controlled.
- Some embodiments may involve transporting porous masses to another location.
- Suitable forms of transportation may include, but not be limited to, conveying, carrying, rolling, pushing, shipping, robotic movement, and the like, and any combination thereof.
- Figures 1- 12 illustrate a plurality of apparatuses and/or systems capable of producing porous masses.
- a material path is used herein to identify the path along which matrix material, porous mass lengths, and/or porous masses will travel in a system and/or apparatus.
- a material path may be contiguous.
- a material path may be noncontiguous.
- systems for batch processing with multiple, independent mold cavities may be considered to have a noncontiguous material path.
- system 100 may include hopper 122 operably connected to material path 110 to feed the matrix material (not shown) to material path 110.
- System 100 may also include paper feeder 132 operably connected to material path 110 so as to feed paper 130 into material path 110 to form a wrapper substantially surrounding the matrix material between mold cavity 120 and the matrix material.
- Heating element 124 is in thermal communication with the matrix material while in mold cavity 120. Heating element 124 may cause the matrix material to mechanically bond at a plurality of points (e.g. , form sintered contact points) thereby yielding a wrapped porous mass length (not shown).
- cutter 126 cuts the wrapped porous mass length radially, i.e. , perpendicular to the longitudinal axis, thereby yielding wrapped porous masses and/or wrapped porous mass sections.
- Figures 1A-B demonstrate that system 100 may be at any angle.
- hopper 122 may be configured such that the outlet of hopper 122 (and any corresponding matrix feed device) is within mold cavity 120.
- a mold cavity may be at an angle at or between vertical and horizontal.
- feeding matrix material to a material path may involve any suitable feeder system including, but not limited to, hand feeding, volumetric feeders, mass flow feeders, gravimetric feeders, pressurized vessel ⁇ e.g. , pressurized hopper or pressurized tank), augers or screws, chutes, slides, conveyors, tubes, conduits, channels, and the like, and any combination thereof.
- the material path may include a mechanical component between the hopper and the mold cavity including, but not limited to, garnitures, compression molds, flow-through compression molds, ram presses, pistons, shakers, extruders, twin screw extruders, solid state extruders, and the like, and any combination thereof.
- feeding may involve, but not be limited to, forced feeding, controlled rate feeding, volumetric feeding, mass flow feeding, gravimetric feeding, vacuum-assisted feeding, fluidized powder feeding, pneumatic dense phase feeding (e.g. , via slug flow, dune or irregu lar dune flow, shearing-bed or ripple flow, and extrusion flow), pneumatic dilute phase feeding, and any combination thereof.
- forced feeding controlled rate feeding
- volumetric feeding mass flow feeding
- gravimetric feeding vacuum-assisted feeding
- fluidized powder feeding e.g. , via slug flow, dune or irregu lar dune flow, shearing-bed or ripple flow, and extrusion flow
- pneumatic dense phase feeding e.g. , via slug flow, dune or irregu lar dune flow, shearing-bed or ripple flow, and extrusion flow
- pneumatic dilute phase feeding e.g., via slug flow, dune or irregu lar dune flow, she
- feeding the matrix material to a material path involving pneu matic dense phase feeding may advantageously allow for high-throughput processing .
- Pneu matic dense phase feeding has been performed at high flow rates with large diameter outlets, but here has u nexpectedly been shown to be effective with small diameters at high speeds.
- the use of pneu matic dense phase feeding has been demonstrated at small diameters (e.g. , about 5 mm to about 25 mm and about 5 mm to about 10 mm) with high-throughput (e.g., about 575 kg/hour or about 500 m/min for a tu bing outlet (described fu rther herein) of about 6. 1 mm).
- the outlet of a pneumatic dense phase feeding apparatus may be similar in shape to the mold cavity but smaller than the mold cavity and extend into the mold cavity.
- the outlet may be shaped to accommodate mold cavities for sheet porous masses (e.g. , a long, rectangular-shaped outlet) or for hollow cylinder porous masses (e.g., a donut- shaped outlet) .
- the process of pneumatic dense phase feeding may advantageously mitigate particle migration and segregation, which can be especially problematic when the binder and active particles are sized and/or shaped differently.
- the air pressu re applied in the pressurized hopper creates a plug flow of matrix material, which minimizes particu late separation and, consequently, provides for a more homogeneous and consistent matrix material composition at the outlet of the feeder.
- the pressurized hopper may be designed for mass flow. Mass flow conditions may depend on, inter alia, the slope of the internal walls of the pressurized hopper, the material of the walls, and the composition of the matrix material.
- the feeding rate of matrix material to a material path may range from a lower limit of about 1 m/min, 10 m/min, 25 m/min, 100 m/min, or 150 m/min to an upper limit of about 800 m/min, 600 m/min, 500 m/min, 400 m/min, 300 m/min, 200 m/min, or 150 m/min, and wherein the feeding rate may range from any lower limit to any upper limit and encompass any subset therebetween.
- the feeding rate of matrix material to a material path may range from a lower limit of about 1 m/min, 10 m/min, 25 m/min, 100 m/min, or 150 m/min to an upper limit of about 800 m/min, 600 m/min, 500 m/min, 400 m/min, 300 m/min, 200 m/min, or 150 m/min in combination with a mold cavity having a diameter ranging from a lower limit of about 0.5 mm, 2 mm, 3 mm, 4 mm, 5 mm, or 6 mm to an upper limit of about 10 mm, 9, mm, 8 mm, 7 mm, or 6 mm, and wherein each of the feeding rate and mold cavity diameter may independently range from any lower limit to any upper limit and encompass any subset therebetween.
- the diameter (or shape) and feeding rate combination achievable may depend on, inter alia, the size and shape of the particles in the matrix material, the other components of the matrix material (e.g. , additives), the matrix material permeability and deaeration constant, the distance conveyed (e.g. , the length of the tubing, described further herein), the conveying system configuration, and the like, and any combination thereof.
- the pneumatic flow may be characterized by a solid to fluid ratio of about 15 or greater.
- the pneumatic flow may be characterized by a solid to fluid ratio ranging from a lower limit of about 15, 20, 30, 40, or 50 to an upper limit of about 500, 400, 300, 200, 150, 130, 100, or 70, and wherein the solid to fluid ratio may range from any lower limit to any upper limit and encompass any subset therebetween.
- the solid to fluid ratio may depend on, inter alia, the type of pneumatic dense phase feeding where extrusion dense phase feeding occurs typically at higher values.
- pneumatic dense phase feeding may involve applying an air pressure from a lower limit of about 1 psig, 2 psig, 5 psig, 10 psig, or 25 psig to about 150 psig, 125 psig, 100 psig, 50 psig, or 25 psig, and wherein the air pressure may range from any lower limit to any upper limit and encompass any subset therebetween.
- the air pressure may be applied with a plurality of gases, e.g. , an inert gas ⁇ e.g.
- feeding may be indexed to enable the insertion of a spacer material at predetermined intervals.
- Suitable spacer materials may comprise additives, solid barriers (e.g. , mold cavity parts), porous barriers (e.g. , papers and release wrappers), filters, cavities, and the like, and any combination thereof.
- feeding may involve shaking and/or vibrating.
- shaking and/or vibrating One skilled in the art, with the benefit of this disclosure, should understand the degree of shaking and/or vibrating that is appropriate, e.g. , a homogenously distributed matrix material comprising large binder particles and small active particles may be adversely affected by vibrating, i.e. , homogeneity may be at least partially lost.
- the matrix material or components thereof may be dried before being introduced into the material path and/or while along the material path. Drying may be achieved, in some embodiments, with heating the matrix material or components thereof, blowing dry gas over the matrix material or components thereof, and any combination thereof.
- the matrix material may have a moisture content of about 10% by weight or less, about 5% by weight or less, or more preferably about 2% by weight or less, and in some embodiments as low as 0.01% by weight. Moisture content may be analyzed by known methods that involve freeze drying or weight loss after drying.
- system 200 may include hopper 222 operably connected to material path 210 to feed the matrix material to material path 210.
- System 200 may also include paper feeder 232 operably connected to material path 210 so as to feed paper 230 into material path 210 to form a wrapper su bstantially su rrou nding the matrix material between mold cavity 220 and the matrix material .
- system 200 may include release feeder 236 operably connected to material path 210 so as to feed release wrapper 234 into material path 210 to form a wrapper between paper 230 and mold cavity 220.
- release feeder 236 may be configured as conveyor 238 that continuously cycles release wrapper 234.
- Heating element 224 is in thermal commu nication with the matrix material while in mold cavity 220. Heating element 224 may cause the matrix material to mechanically bond at a plurality of points (e.g.
- release wrapper 234 may be removed from the wrapped porous mass length before cutting or from the wrapped porous masses and/or wrapped porous mass sections after cutting .
- system 300 may include component hoppers 322a and 322b that feed components of the matrix material into hopper 322.
- the matrix material may be mixed and preheated in hopper 322 with mixer 328 and preheater 344.
- Hopper 322 may be operably connected to material path 310 to feed the matrix material to material path 310.
- System 300 may also include paper feeder 332 operably connected to material path 310 so as to feed paper 330 into material path 310 to form a wrapper substantially surrounding the matrix material between mold cavity 320 and the matrix material .
- Mold cavity 320 may include flu id connection 346 through which heated flu id (liquid or gas) may pass into material path 310 and mechanically bond the matrix material at a plurality of points (e.g.
- fluid connection 346 can be located at any location along mold cavity 320 and that more than one fluid connection 346 may be disposed along mold cavity 320.
- cutter 326 cuts the wrapped porous mass length radially thereby yielding wrapped porous masses and/or wrapped porous mass sections.
- preheating can also take place for individual feed components before hopper 322 and/or with the mixed components after hopper 322.
- Suitable mixers may include, but not be limited to, ribbon blenders, paddle blenders, plow blenders, double cone blenders, twin shell blenders, planetary blenders, fluidized blenders, high intensity blenders, rotating drums, blending screws, rotary mixers, and the like, and any combination thereof.
- component hoppers may hold individual components of the matrix material, e.g. , two component hoppers with one holding binder particles and the other holding active particles.
- component hoppers may hold mixtures of components of the matrix material, e.g. , two component hoppers with one holding a mixture of binder particles and active particles and the other holding an additive like flavorant.
- the components within component hoppers may be solids, liquids, gases, or combinations thereof.
- the components of different component hoppers may be added to the hopper at different rates to achieve a desired blend for the matrix material.
- three component hoppers may separately hold active particles, binder particles, and active compounds (an additive described further below) in liquid form.
- Binder particles may be added to the hopper at twice the rate of the active particles, and the active compounds may be sprayed in so as to form at least a partial coating on both the active particles and the binder particles.
- fluid connections to mold cavities may be to pass a fluid into the mold cavity, pass a fluid through a mold cavity, and/or drawing on a mold cavity.
- drawing refers to creating a negative pressure drop across a boundary and/or along a path, e.g. , sucking.
- Passing a heated fluid into and/or through a mold cavity may assist in mechanically bonding the matrix material therein (e.g. , at a plurality of sintered contact points).
- Drawing on a mold cavity that has a wrapper disposed therein may assist in lining the mold cavity evenly, e.g., with less wrinkles.
- system 400 may include hopper 422 operably connected to material path 410 to feed the matrix material to material path 410.
- Hopper 422 may be configured along material path 410 such that the outlet of hopper 422, or an extension from its outlet, is within mold cavity 420. This may advantageously allow for the matrix material to be fed into mold cavity 420 at a rate to control the packing of the matrix material and consequently the void volume of resu ltant porous masses.
- mold cavity 420 comprises a thermoelectric material and therefore includes power connection 448.
- System 400 may also include release feeder 436 operably connected to material path 410 so as to feed release wrapper 434 into material path 410 to form a wrapper substantially surrounding the matrix material between mold cavity 420 and the matrix material.
- Mold cavity 420 may be made of a thermoelectric material so that mold cavity 420 may provide the heat to mechanically bond the matrix material at a plu rality of points (e.g. , form sintered contact points), thereby yielding a wrapped porous mass length.
- roller 440 may be operably capable of assisting the movement of the wrapped porous mass length through mold cavity 420.
- cutter 426 cuts the wrapped porous mass length radially thereby yielding wrapped porous masses and/or wrapped porous mass sections. After cutting, the porous masses continue along material path 410 on porous mass conveyor 462, e.g. , for packaging or further processing . Release wrapper 434 may be removed from the wrapped porous mass length before cutting or from the wrapped porous masses and/or wrapped porous mass sections after cutting .
- Suitable rollers and/or substitutes for rollers may include, but not be limited to, cogs, cogwheels, wheels, belts, gears, and the like, and any combination thereof. Fu rther rollers and the like may be flat, toothed, beveled, and/or indented .
- system 500 may include hopper
- Heating element 524 operably connected to material path 510 to feed the matrix material to material path 510.
- Heating element 524 is in thermal commu nication with the matrix material while in mold cavity 520. Heating element 524 may cause the matrix material to mechanically bond at a plu rality of points (e.g. , form sintered contact points), thereby yielding a porous mass length .
- die 542 may be used for extruding the porous mass length into a desired cross-sectional shape.
- Die 542 may include a plu rality of dies 542' (e.g. , multiple dies or multiple holes within a single die) through which the porous mass length may be extruded .
- cutter 526 cuts the porous mass length radially, thereby yielding porous masses and/or porous mass sections.
- system 600 may include paper feeder 632 operably connected to material path 610 so as to feed paper 630 into material path 610.
- Hopper 622 (or other matrix materia l delivery apparatus, e.g., an auger) may be operably connected to material path 610 so as to place matrix material on paper 630.
- Paper 630 may wrap around the matrix material, at least in part, because of passing-through mold cavity 620 (or compression mold sometimes referred to a garniture device in relation to cigarette filter forming apparatuses), which provide the desired cross-sectional shape (or optional, in some embodiments, the matrix material may be combined with paper 630 after formation of the desired cross-section has begu n or is complete) .
- the paper seam may be glued.
- Heating element 624 e.g. , a microwave sou rce, a convection oven, a heating block, and the like, or hybrids thereof
- Heating element 624 is in thermal commu nication with the matrix material while and/or after being in mold cavity 620.
- Heating element 624 may cause the matrix material to mechanically bond at a plurality of points (e.g., form sintered contact points), thereby yielding a wrapped porous mass length .
- cutter 626 cuts the wrapped porous mass length radially, thereby yielding wrapped porous masses and/or wrapped porous mass sections.
- Movement through system 600 may be aided by conveyor 658 with mold cavity 620 being stationary. It should be noted that while not shown, a similar embodiment may include paper 630 as part of a looped conveyor that unwraps from the porous mass length before cutting, which would yield porous masses and/or porous mass sections.
- system 600' may include paper feeder 632' operably connected to material path 610' so as to feed paper 630' into material path 610'.
- Hopper 622' (or other matrix material delivery apparatus, e.g., an auger) may be operably connected to material path 610' so as to place matrix material on paper 630'.
- Paper 630' may wrap around the matrix material, at least in part, because of passing-through mold cavity 620' (e.g.
- a compression mold sometimes referred to a garniture device in relation to cigarette filter forming apparatuses
- the matrix material may be combined with paper 630' after formation of the desired cross-section has begu n or is complete
- the paper seam may be glued .
- System 600' may comprise more than one heating element 624'.
- the first heating element 624a' is in thermal comm unication with the matrix material while and/or after being in mold cavity 620', and may cause at least a portion of the matrix material to mechanically bond at a plurality of points (e.g., form sintered contact points).
- the porous mass length may then be sized to a desired cross-sectional shape or size with compression mold 656' (e.g. , for reshaping the cross-sectional shape the wrapped porous mass length ) and then reheated with a second heating element 624b' (which may be a heating element similar to that of the first heating element 624a', e.g.
- both microwaves or different, e.g., first a microwave and second an oven
- additional mechanical bonding e.g. , sintered contact point
- the wrapped porous mass length after the second heating element 624b' may again be sized to a desired cross-sectional shape or size.
- the resultant wrapped porous mass length may then be su itably cooled, radially cut with cutter 626 into wrapped porous masses and/or wrapped porous mass sections. Movement through system 600' may be aided by conveyor 658' with mold cavity 620' being stationary.
- the porous mass length may be cooled and cut, then, reheated .
- One skilled in the art wou ld recognize how to modify the other systems and methods described herein to provide for two or more sintering (or heating) steps.
- the porous mass or the like may be resized and/or reshaped with the application of pressure.
- Compression molding may consist of a driven or non-driven sizing or forming roller, a series of rollers, or a die or series of dies, and any combination thereof suitable for bringing the rod to final shape or dimension. Resizing and/or reshaping may be performed after each heating step of the method .
- system 700 may include paper feeder 732 operably connected to material path 710 so as to feed paper 730 into material path 710.
- mold cavity 720 a cylindrically-rolled paper glued at the longitudinal seam, may be formed on-the-fly with forming mold 756a (or forming mold sometimes referred to a garnitu re device, including paper tu be folders, in relation to cigarette filter forming apparatuses) causing paper 730 to roll with glue 752 applied with glue-application device 754 (e.g. , a glue gu n), optionally followed by a glue seam heater (not shown) .
- glue-application device 754 e.g. , a glue gu n
- matrix material may be introduced along material path 710 from hopper 722.
- Heating element 724 (e.g., a microwave source, a convection oven, a heating block, and the like, or hybrids thereof) in thermal communication with mold cavity 720 may cause the matrix material to mechanically bond at a plu rality of points (e.g. , form sintered contact points), thereby yielding a wrapped porous mass length .
- compression mold 756b may be used before complete cooling of the matrix material to size the wrapped porous mass length into a desired cross-sectional size, which may advantageously be used for uniformity in the circu mference and shape (e.g. , ovality) of the wrapped porous mass.
- cutter 726 cuts the wrapped porous mass length radially, thereby yielding wrapped porous masses and/or wrapped porous mass sections. Movement through system 700 may be aided by rollers, conveyors, or the like, not shown.
- rollers, conveyors, or the like not shown.
- One skilled in the art with the benefit of this disclosure should understand that the processes described may occur in a single apparatus or in mu ltiple apparatus. For example, rolling the paper, introducing the matrix material, exposing to heat (e.g., by applying microwaves or heating in a conventional oven), and resizing may be performed in a single apparatus and the resultant porous mass length may be conveyed to a second apparatus for cutting .
- System 700 may be oriented in any direction, for example vertical or horizontal or anywhere in between .
- glue or other adhesives used to seal a paper mold cavity may be a cold melt adhesive, a hot melt adhesive, a pressu re sensitive adhesive, a cu rable adhesive, and the like.
- Cold melt adhesives may be preferred so as to mitigate failu re of the glue during a su bsequent heating process (e.g. , during sintering) .
- system 700' may include paper feeder 732' operably connected to material path 710' so as to feed paper 730' into material path 710'.
- mold cavity 720' a cylindrically-rolled paper glued at the longitudinal seam, may be formed on-the-fly with forming mold 756a' (or forming mold sometimes referred to a garniture device, including paper tu be folders, in relation to cigarette filter forming apparatuses) causing paper 730' to roll with glue 752' applied with glue-application device 754' (e.g. , a glue gun).
- glue-application device 754' e.g. , a glue gun
- matrix material may be introduced along material path 710' from hopper 722' (e.g.
- a pressurized hopper of a pneumatic dense phase feeder operably connected to tubing 722a' by joint 722b', which may be a flexible joint.
- Heating element 724' e.g. , a microwave sou rce, a convection oven, a heating block, and the like, or hybrids thereof
- mold cavity 720' in thermal communication with mold cavity 720' (as shown in close proximity to the end of tubing 722a') may cause the matrix material to mechanically bond at a plu rality of points (e.g. , form sintered contact points), thereby yielding a wrapped porous mass length .
- compression mold 756b' (shown as rollers) may be cooled to assist in the cooling of the matrix material while shaping the wrapped porous mass length into a desired more uniform circumference and shape (e.g. , ovality).
- cutter 726' cuts the wrapped porous mass length radially, thereby yielding wrapped porous masses and/or wrapped porous mass sections.
- a mold cavity may be non-porous or varying degrees of porosity to allow for removal of flu id from the matrix material .
- the forming mold and/or material path may be operably connected to passageways to allow fluid passage from the porous paper in desired orientation .
- these fluid passages may be connected to a source below atmospheric pressure. Removal of fluid from the mix may, in some em bodiments, improve system ru n-ability and minimize matrix material particle segregation .
- a feeder may include an elongated portion designed to fit into the mold cavity.
- the outlet of a feeder e.g., the outlet of tubing 722a'
- the feeder or elongated portion thereof may include a flexible portion that allows the outlet to move within the mold cavity.
- Du ring pneu matic dense phase feeding such movement may be advantageous by allowing for the outlet to move within the mold cavity. Such movement may advantageously allow the outlet to freely find the center in the mold cavity, which may provide for a fit that enhances run- ability and minimizes matrix mix segregation.
- a feeder e.g. , the outlet of tubing 722a'
- a feeder may terminate before forming mold 756a', within forming mold 756a', or after forming mold 756a' and optionally after a glue seem heater.
- the outlet may, in some embodi ments, be designed to have a variable cross-sectional area, which may be advantageous in pneumatic dense phase feeding to aid matrix mix packing density, to minimize particle segregation, and to allow for varying pressures and flow rates in a single system .
- the outlet may be vented with a mesh that does not allow matrix material to flow therethrough but does allow for fluid to pass therethrough .
- Such ventilation may allow for the pressure to dissipate in a controlled manner over a longer length and mitigate significant particle migration (which may lead to matrix material inhomogeneity) as the matrix material exits the outlet, especially at high flow rates and high pressu res.
- mold cavity 820 of system 800 may be formed from mold cavity parts 820a and 820b operably connected to mold cavity conveyors 860a and 860b, respectively.
- matrix material may be introduced along material path 810 from hopper 822.
- Heating element 824 is in thermal commu nication with the matrix material while in mold cavity 820. Heating element 824 may cause the matrix material to mechanically bond at a plu rality of points (e.g. , form sintered contact points), thereby yielding a porous mass.
- the porous mass may be removed from mold cavity parts 820a and/or 820b and continue along material path 810 via porous mass conveyor 862.
- Figure 8 illustrates a nonlimiting example of a noncontiguous material path.
- removing porous masses from mold cavities and/or mold cavity parts may involve pulling mechanisms, pushing mechanisms, lifting mechanisms, gravity, any hybrid thereof, and any combination thereof.
- Removing mechanisms may be configured to engage porous masses at the ends, along the side(s), and any combination thereof.
- Su itable pulling mechanisms may include, but not be limited to, suction cu ps, vacuu m components, tweezers, pincers, forceps, tongs, grippers, claws, clamps, and the like, and any combination thereof.
- Su itable pushing mechanisms may include, but not be limited to, ejectors, pu nches, rods, pistons, wedges, spokes, rams, pressurized flu ids, and the like, and any combination thereof.
- Suitable lifting mechanisms may include, but not be limited to, suction cups, vacu um components, tweezers, pincers, forceps, tongs, grippers, claws, clamps, and the like, and any combination thereof.
- mold cavities may be configu red to operably work with various removal mechanisms.
- a hybrid push-pu ll mechanism may include pushing longitudinally with a rod, so as to move the porous mass partially out the other end of the mold cavity, which can then be engaged by forceps to pull the porous mass from the mold cavity.
- mold cavity 920 of system 900 is formed from mold cavity parts 920a and 920b or 920c and 920d operably connected to mold cavity conveyors 960a, 960b, 960c, and 960d, respectively.
- sheets of paper 930 are introduced into mold cavity 920 via paper feeder 932.
- matrix material is introduced into paper 930 from hopper 922 along material path 910 lined mold cavity 920 and mechanically bound into porous masses with heat from heating element 924 (e.g., heated to form a plu rality of sintered contact points).
- porous masses After suitable cooling, removal of the porous masses may be achieved by insertion of ejector 964 into ejector ports 966a and 966b of mold cavity parts 920a, 920b, 920c, and 920d. The porous masses may then continue along material path 910 via porous mass conveyor 962.
- Figure 9 illustrates a nonlimiting example of a noncontiguous material path .
- cleaners may include, but not be limited to, scrubbers, brushes, baths, showers, insert fluid jets (tubes that insert into mold cavities capable of jetting fluids radially), ultrasonic apparatuses, and any combination thereof.
- porous masses may comprise cavities.
- Hopper 1022 is operably attached to two volumetric feeders 1090a and 1090b such that each volumetric feeder 1090a and 1090b fills mold cavity 1020 partially with the matrix material along material path 1010.
- injector 1088 places a capsule (not shown) into mold cavity 1020, thereby yielding a capsule surrounded by matrix material.
- Heating element 1024 in thermal contact with mold cavity 1020, causes the matrix material to mechanically bond at a plurality of points (e.g. , form sintered contact points), thereby yielding a porous mass with a capsule disposed therein.
- rotary grinder 1092 is inserted into mold cavity 1020 along the longitudinal direction of mold cavity 1020.
- Rotary grinder 1092 is operably capable of grinding the porous mass to a desired length in the longitudinal direction.
- Suitable capsules for use within porous masses and the like may include, but not be limited to, polymeric capsules, porous capsules, ceramic capsules, and the like. Capsules may be filled with an additive, e.g., granulated carbon or a flavorant (more examples provided below). The capsules, in some embodiments, may also contain a molecular sieve that reacts with selected components in the smoke to remove or reduce the concentration of the components without adversely affecting desirable flavor constituents of the smoke. In some embodiments, the capsules may include tobacco as an additional flavorant.
- the capsule is insufficiently filled with a chosen substance, in some filter embodiments, this may create a lack of interaction between the components of the mainstream smoke and the substance in the capsules.
- porous masses with capsules therein may be altered to produce porous masses with capsules therein.
- more than one capsule may be within a porous mass section, porous mass, and/or porous mass length.
- the shape, e.g. , length, width, diameter, and/or height, of porous masses may be adjusted by operations other than cutting including, but not limited to, sanding, milling, grinding, smoothing, polishing, rubbing, and the like, and any combination thereof. Generally, these operations will be referred to herein as grinding. Some embodiments may involve grinding the sides and/or ends of porous masses to achieve smooth surfaces, roughened surfaces, grooved surfaces, patterned surfaces, leveled surfaces, and any combination thereof. Some embodiments may involve grinding the sides and/or ends of porous masses to achieve desired dimensions within specification limitations.
- Some embodiments may involve grinding the sides and/or ends of porous masses while in or exiting mold cavities, after cutting, during further processing, and any combination thereof.
- dust, particles, and/or pieces may be produced from grinding.
- grinding may involve removing the dust, particles, and/or pieces by methods like vacuuming, blowing gases, rinsing, shaking, and the like, and any combination thereof.
- Any component and/or instrument capable of achieving the desired level of grinding may be used in conjunction with systems and methods disclosed herein.
- suitable components and/or instruments capable of achieving the desired level of grinding may include, but not be limited to, lathes, rotary sanders, brushes, polishers, buffers, etchers, scribes, and the like, and any combination thereof.
- the porous mass may be machined to be lighter in weight, if desired, for example, by drilling out a portion of the porous mass.
- hopper 1122 is operably attached to chute 1182 and feeds the matrix material to material path 1110.
- mold cavity 1120 is configu red to accept ram 1180, which is capable of pressing the matrix material in mold cavity 1120.
- Heating element 1124 in thermal communication with the matrix material while in mold cavity 1120, causes the matrix material to mechanically bond at a plu rality of points (e.g. , form sintered contact points), thereby yielding a porous mass length .
- ram 1180 in system 1100 may advantageously assist in ensu ring the matrix material is properly packed so as to form a porous mass length with a desired void volume.
- system 1100 comprises cooling area 1194, while the porous mass length is still contained within mold cavity 1120. In this nonlimiting example, cooling is achieved passively.
- hopper 1222 of system 1200 operably feeds the matrix material to extruder 1284 (e.g. , screw) along material path 1210.
- Extruder 1284 moves matrix material to mold cavity 1220.
- System 1200 also includes heating element 1224 in thermal communication with the matrix material while in mold cavity 1220 that causes the matrix material to mechanically bond at a plu rality of points (e.g. , form sintered contact points), thereby yielding a porous mass length .
- system 1200 includes cooling element 1286 in thermal commu nication porous mass length while in mold cavity 1220. Movement of the porous mass length out of mold cavity 1220 is assisted and/or directed by roller 1240.
- a control system may interface with components of the systems and/or apparatuses disclosed herein .
- control system refers to a system that can operate to receive and send electronic or pneu matic signals and may include functions of interfacing with a user, providing data readouts, collecting data, storing data, changing variable setpoints, maintaining setpoints, providing notifications of failures, and any combination thereof.
- Suitable control systems may include, but are not limited to, variable transformers, ohm meters, programmable logic controllers, digital logic circuits, electrical relays, computers, virtual reality systems, distributed control systems, and any combination thereof.
- Su itable system and/or apparatus components that may be operably connected to a control system may include, but not be limited to, hoppers, heating elements, cooling elements, cutters, mixers, paper feeders, release feeders, release conveyors, cleaning elements, rollers, mold cavity conveyors, conveyors, ejectors, liqu id jets, air jets, rams, chutes, extruders, injectors, matrix material feeders, glue feeders, grinders, and the like, and any combination thereof. It shou ld be noted that systems and/or apparatuses disclosed herein may have more than one control system that can interface with any number of components.
- heating elements may be interchanged with electromagnetic radiation sources (e.g., a microwave sou rce, a convection oven, a heating block, and the like, or hybrids thereof) when the matrix material comprises a component capable of converting electromagnetic radiation to heat (e.g., nanoparticles, carbon particles, and the like) .
- electromagnetic radiation sources e.g., a microwave sou rce, a convection oven, a heating block, and the like, or hybrids thereof
- the matrix material comprises a component capable of converting electromagnetic radiation to heat (e.g., nanoparticles, carbon particles, and the like)
- paper wrappers may be interchanged with release wrappers.
- porous masses may be produced at linear speeds of about 800 m/min or less, including by methods that involve very slow linear speeds of less than about 1 m/min.
- linear speed refers to the speed along a single production line in contrast to a production speed that may encompass several production lines in parallel, which may be along individual apparatuses, within a single apparatus, or a combination thereof.
- porous masses may be produced by methods described herein at linear speeds that range from a lower limit of about 1 m/min, 10 m/min, 50 m/min, or 100 m/min to an upper limit of about 800 m/min, 600 m/min, 500 m/min, 300 m/min, or 100 m/min, and wherein the linear speed may range from any lower limit to any upper limit and encompass any subset therebetween.
- productivity advancements in machinery may enable linear speeds of greater than 800 m/min (e.g., 1000 m/min or greater).
- a single apparatus may include mu ltiple lines (e.g. , two or more lines of Figure 7 or other lines illustrated herein) in parallel so as to increase the overall production rate of porous masses and the like, e.g. , to several thousand m/min or greater.
- Some embodiments may involve further processing of porous masses. Suitable further processing may include, but not be limited to, doping with a flavorant or other additive, grinding, drilling out, further shaping, forming multi-segmented filters, forming smoking devices, packaging, shipping, and any combination thereof.
- Some embodiments may involve doping matrix materials, porous masses with an additive.
- additives are provided below.
- Suitable doping methods may include, but not be limited to, including the additives in the matrix material; by applying the additives to at least a portion of the matrix material before mechanical bonding; by applying the additives after mechanical bonding while in the mold cavity; by applying the additives after leaving the mold cavity; by applying the additives after cutting; and any combination thereof.
- applying includes, but is not limited to, dipping, immersing, submerging, soaking, rinsing, washing, painting, coating, showering, drizzling, spraying, placing, dusting, sprinkling, affixing, and any combination thereof.
- applying includes, but is not limited to, surface treatments, infusion treatments where the additive incorporates at least partially into a component of the matrix material, and any combination thereof.
- concentration of the additive will depend at least on the composition of the additive, the size of the additive, the purpose of the additive, and the point in the process in which the additive is included.
- doping with an additive may occur before, during, and/or after mechanically bonding the matrix materials.
- additives which degrade, change, or are otherwise affected by the mechanical bonding process and associated parameter ⁇ e.g. , elevated temperatures and/or pressures
- glass beads may be an additive in the matrix material.
- the glass beads may be functionalized with other additives like flavorants and/or active compounds.
- Some embodiments may involve grinding porous masses after being produced. Grinding includes those methods and apparatuses/components described above.
- Some embodiments may involve operably connecting porous masses to filters and/or filter sections.
- Suitable filters and/or filter sections may comprise at least one of cellulose, cellulosic derivatives, cellulose ester tow, cellulose acetate tow, cellulose acetate tow with less than about 10 denier per filament, cellulose acetate tow with about 10 denier per filament or greater, random oriented acetates, papers, corrugated papers, polypropylene, polyethylene, polyolefin tow, polypropylene tow, polyethylene terephthalate, polybutylene terephthalate, coarse powders, carbon particles, carbon fibers, fibers, glass beads, zeolites, molecular sieves, a second porous mass, and any combination thereof.
- porous masses and other filter sections may independently have features like a concentric filter design, a paper wrapping, a cavity, a void chamber, a baffled void chamber, capsules, channels, and the like, and any combination thereof.
- porous masses and other filter sections may have substantially the same cross-sectional shape and/or circumference.
- a filter section may comprise a space that defines a cavity between two filter sections.
- the cavity may, in some embodiments, be filled with an additive, e.g. , granulated carbon.
- the cavity may, in some embodiments, contain a capsule, e.g. , a polymeric capsule, that itself contains a catalyst.
- the cavity in some embodiments, may also contain a molecular sieve that reacts with selected components in the smoke to remove or reduce the concentration of the components without adversely affecting desirable flavor constituents of the smoke.
- the cavity may include tobacco as an additional flavorant.
- filter sections may be combined or joined so as to form a filter or a filter rod.
- filter rod refers to a length of filter that is suitable for being cut into two or more filters.
- the filter rods that comprise an porous mass described herein may, in some embodiments, have lengths ranging from about 80 mm to about 150 mm and may be cut into filters having lengths about 5 to about 35 mm in length during a smoking device tipping operation (the addition of a tobacco column to a filter) .
- Tipping operations may involve combining or joining a filter or filter rod described herein with a tobacco column.
- the filter rods that comprise a porous mass described herein may, in some embodiments, be first cut into filters or cut into filters during the tipping process.
- tipping methods may fu rther involve combining or joining additional sections that comprise paper and/or charcoal to the filter, filter rods, or tobacco column.
- some embodiments may involve wrapping a paper about the various components thereof so as to maintain the components in the desired configu ration and/or contact.
- producing filter and/or filter rods may involve wrapping paper about a series of abutting filter sections.
- porous masses wrapped with a paper wrapping may have an additional wrapping disposed thereabout to maintain contact between the porous mass and another section of the filter.
- Su itable papers for producing filters, filter rods, and/or smoking devices may include any paper described herein in relation to wrapping porous masses.
- the papers may comprise additives, sizing, and/or printing agents.
- some em bodiments may involve adhering adjacent components thereof (e.g. , an porous mass to an adjacent filter section, tobacco column, and the like, or any combination thereof) .
- Preferable adhesives may include those that do not impart flavor or aroma under ambient conditions and/or under burning conditions.
- wrapping and adhering may be utilized in the production of filters, filter rods, and/or smoking devices.
- Some embodiments described herein may involve providing a porous mass rod that comprises a plurality of organic particles and binder particles bound together at a plurality of contact points; providing a filter rod that does not have the same composition as the porous mass rod ; cutting the porous mass rod and the filter rod into porous mass sections and filter sections, respectively; forming a desired abutting configuration that comprises a plurality of sections, the plurality of sections comprising at least some of the porous mass sections and at least some of the filter sections; securing the desired abutting configuration with a paper wrapper and/or an adhesive so as to yield a segmented filter rod length; cutting the segmented filter rod length into segmented filter rods; and wherein the method is performed so as to produce the segmented filter rods at a rate of about 800 m/min or less.
- Some embodiments may further involve forming a smoking device with at least a portion of the segmented filter rod.
- abutting configuration refers to a configuration where two filter sections (or the like) are axially aligned so as to touch one end of the first section to one end of the second section.
- this abutting configuration can be continuous (i.e. , not never-ending, rather very long) with a large number of sections or short in length with at least two to many sections.
- Some embodiments described herein may involve providing a plurality of porous mass sections that comprise a plurality of organic particles and binder particles bound together at a plurality of contact points; providing a plurality of filter sections that do not have the same composition as the porous mass sections; forming a desired abutting configuration that comprises a plurality of sections, the plurality of sections comprising at least one of the porous mass sections and at least one of the filter sections; securing the desired abutting configuration with a paper wrapper and/or adhesive so as to produce a segmented filter or a segmented filter rod length; and wherein the method is performed so as to produce the segmented filter or the segmented filter rod at a rate of about 800 m/min or less.
- Some embodiments may further involve forming a smoking device with the segmented filter or at least a portion of the segmented filter rod.
- a cellulose acetate filter rod 1310 is cut into 8 sections (about 15 mm each) and porous mass filter rod 1312 is cut into 10 sections (about 12 mm each) to yield segments 1314 and 1316, respectively.
- the segments 1314,1316 are then aligned end-on-end in an alternating configuration, pushed together, and wrapped with paper and glued at the seam line so as to yield a segmented filter length 1318.
- segmented filter length 1318 can then cut in about the middle of every fourth cellulose acetate segment 1314 so as to yield segmented filter rod 1320 having portions of a cellulose acetate segment 1314 disposed on each end.
- segmented filter rod 1320 having portions of a cellulose acetate segment 1314 disposed on each end.
- segmented filter rod 1320' which includes five segments where the porous mass segments are at the ends.
- a desired configuration of a filter rod length may be a first porous mass section, a first filter section, and a second filter section in series a first porous mass section, a first second filter section, a first first filter section, a second second filter section, a second porous mass section, a third second filter section, a second first filter section, and a fourth second filter section in series.
- Such a configuration may be at least one embodiment useful for producing filters that comprise three sections, as illustrated in Figure 14, which illustrates a filter rod length being cut into a filter rod that is then cut two additional times so as to yield a filter section comprising three sections.
- a capsule may be included so as to be nested between two abutting sections.
- the term “nested” or “nesting” refers to being inside and not directly exposed to the exterior of the article produced. Accordingly, nesting between two abutting sections allows for the adjacent sections to be touching, i.e. , abutting.
- a capsule may be in a portion [0131]
- filters described herein may be produced using known instrumentation, e.g. , greater than about 25 m/min in automated instruments and lower for hand production instruments.
- filter sections described herein may be combined to form a filter rod at a rate ranging from a lower limit of about 25 m/min, 50 m/min, or 100 m/min to an upper limit of about 800 m/min, 600 m/min, 400 m/min, 300 m/min, or 250 m/min, and wherein the combining rate may range from any lower limit to any upper limit and encompasses any subset therebetween.
- porous masses utilized in the production of filter and/or filter rods described herein may be wrapped with a paper.
- the paper may, in some embodiments, reduce damage and particulate production due to the mechanical manipulation of the porous masses.
- Paper suitable for use in conjunction with protecting porous masses during manipulation may include, but are not limited to, wood-based papers, papers containing flax, flax papers, cotton paper, functionalized papers (e.g. , those that are functionalized so as to reduce tar and/or carbon monoxide), special marking papers, colorized papers, and any combination thereof.
- the papers may be high porosity, corrugated, and/or have a high surface strength.
- papers may be substantially non-porosity less, e.g., than about 10 CORESTA units.
- the filters and/or filter rods comprising porous masses described herein may be directly transported to a manufacturing line whereby they will be combined with tobacco columns to form smoking devices.
- An example of such a method includes a process for producing a smoking device comprising : providing a filter rod comprising at least one filter section comprising an porous mass described herein that comprises an organic particle and a binder particle; providing a tobacco column; cutting the filter rod transverse to its longitudinal axis through the center of the rod to form at least two filters having at least one filter section, each filter section comprising an porous mass that comprises an organic particle and a binder particle; and joining at least one of the filters to the tobacco column along the longitudinal axis of the filter and the longitudinal axis of the tobacco column to form at least one smoking device.
- the device filters and/or filter rods comprising porous masses may be placed in a suitable container for storage until further use.
- suitable storage containers include those commonly used in the smoking device filter art including, but not limited to, crates, boxes, drums, bags, cartons, and the like.
- Some embodiments may involve operably connecting smokeable substances to porous masses (or segmented filters comprising at least one of the foregoing).
- porous masses (or segmented filters comprising at least one of the foregoing) may be in fluid communication with a smokeable substance.
- a smoking device may comprise porous masses (or segmented filters comprising at least one of the foregoing) in fluid communication with a smokeable substance.
- a smoking device may comprise a housing operably capable of maintaining porous masses (or segmented filters comprising at least one of the foregoing) in fluid communication with a smokeable substance.
- filter rods, filters, filter sections, sectioned filters, and/or sectioned filter rods may be removable, replaceable, and/or disposable from the housing.
- smokeable substance refers to a material capable of producing smoke when burned or heated.
- Suitable smokeable substances may include, but not be limited to, tobaccos, e.g. , bright leaf tobacco, Oriental tobacco, Vietnamese tobacco, Cavendish tobacco, corojo tobacco, criollo tobacco, Perique tobacco, shade tobacco, white burley tobacco, flue-cured tobacco, Burley tobacco, Maryland tobacco, Virginia tobacco; teas; herbs; carbonized or pyrolyzed components; inorganic filler components; and any combination thereof.
- tobaccos e.g. , bright leaf tobacco, Oriental tobacco, Vietnamese tobacco, Cavendish tobacco, corojo tobacco, criollo tobacco, Perique tobacco, shade tobacco, white burley tobacco, flue-cured tobacco, Burley tobacco, Maryland tobacco, Virginia tobacco; teas; herbs; carbonized or pyrolyzed components; inorganic filler components; and any combination thereof.
- Tobacco may have the form of tobacco lamina in cut filler form, processed tobacco stems, reconstituted tobacco filler, volume
- a smokeable substance may be in a column format, e.g. , a tobacco column.
- tobacco column refers to the blend of tobacco, and optionally other ingredients and flavorants that may be combined to produce a tobacco-based smokeable article, such as a cigarette or cigar.
- the tobacco column may comprise ingredients selected from the group consisting of: tobacco, sugar (such as sucrose, brown sugar, invert sugar, or high fructose corn syrup), propylene glycol, glycerol, cocoa, cocoa products, carob bean gums, carob bean extracts, and any combination thereof.
- the tobacco column may further comprise flavorants, aromas, menthol, licorice extract, diammonium phosphate, ammonium hydroxide, and any combination thereof.
- tobacco columns may comprise additives.
- tobacco columns may comprise at least one bendable element.
- Suitable housings may include, but not be limited to, cigarettes, cigarette holders, cigars, cigar holders, pipes, water pipes, hookahs, electronic smoking devices, roll-your-own cigarettes, roll-your-own cigars, papers, and any combination thereof.
- Packaging porous masses may include, but not be limited to, placing in trays or boxes or protective containers, e.g., trays typically used for packaging and transporting cigarette filter rods.
- a pack of filters and/or smoking devices with filters may comprise porous masses.
- the pack may be a hinge-lid pack, a slide-and-shell pack, a hard-cup pack, a soft-cup pack, a plastic bag, or any other suitable pack container.
- the packs may have an outer wrapping, such as a polypropylene wrapper, and optionally a tear tab.
- the filters and/or smoking devices may be sealed as a bundle inside a pack.
- a bundle may contain a number of filters and/or smoking devices, for example, 20 or more. However, a bundle may include a single filter and/or smoking device, in some embodiments, such as exclusive filter and/or smoking device embodiments like those for individual sale, or a filter and/or smoking device comprising a specific spice, like vanilla, clove, or cinnamon.
- a carton of smoking device packs may include at least one pack of smoking devices that includes at least one smoking device with a filter (multi-segmented or otherwise) that comprises porous masses.
- the carton e.g., a container
- Some embodiments may involve shipping porous masses.
- Said porous masses may be as individuals, as at least a portion of filters, as at least a portion of smoking devices, in packs, in carton, in trays, and any combination thereof.
- Shipping may be by train, truck, airplane, boat/ship, and any combination thereof.
- the matrix material may comprise active particles in an amount ranging from a lower limit of about 1 wt%, 5 wt%, 10 wt%, 25 wt%, 40 wt%, 50 wt%, 60 wt%, or 75 wt% of the matrix material to an upper limit of about 99 wt%, 95 wt%, 90 wt%, or 75 wt% of the matrix material, and wherein the amount of active particles can range from any lower limit to any upper limit and encompass any subset therebetween.
- the matrix material may comprise binder particles in an amount ranging from a lower limit of about 1 wt%, 5 wt%, 10 wt%, or 25 wt% of the matrix material to an upper limit of about 99 wt%, 95 wt%, 90 wt%, 75 wt%, 60 wt%, 50 wt%, 40 wt%, or 25 wt% of the matrix material, and wherein the amount of binder particles can range from any lower limit to any upper limit and encompass any subset therebetween.
- the active particles may be any material adapted to enhance smoke flowing thereover. Adapted to enhance smoke flowing thereover refers to any material that can remove, reduce, or add components to a smoke stream.
- the removal or reduction (or addition) may be selective.
- compounds such as those shown below in the following listing may be selectively removed or reduced. This table is available from the U.S. FDA as a Draft Proposed Initial List of Harmful/Potentially Harmful Constituents in Tobacco Products, including Tobacco Smoke; any abbreviations in the below listing are well-known chemicals in the art.
- the active particle may reduce or remove at least one component selected from the listing of components in smoke below, including any combination thereof.
- Smoke stream components may include, but not be limited to, acetaldehyde, acetamide, acetone, acrolein, acrylamide, acrylonitrile, aflatoxin B-l, 4-aminobiphenyl, 1-aminonaphthalene, 2-aminonaphthalene, ammonia, ammonium salts, anabasine, anatabine, 0-anisidine, arsenic, A-a-C, benz[a]anthracene, benz[b]fluoroanthene, benz[j]aceanthrylene, benz[k]fluoroanthene, benzene, benzo(b)furan, benzo[a]pyrene, benzo[c]phenanthrene, beryllium, 1,3-butadiene, butyraldehyde, cadmium, caffeic acid, carbon monoxide, catechol, chlorinated dioxins/furans, chromium, chrysen
- an active particle is activated carbon (or activated charcoal or active coal) .
- the activated carbon may be low activity (about 50% to about 75% CCI 4 adsorption) or high activity (about 75% to about 95% CCI 4 adsorption) or a combination of both.
- Activated carbons may include those derived from (e.g. , pyrolyzed from) coconut shells, coal, synthetic resins, and the like. Examples of commercially available carbon may include, but are not limited to, product grades offered by Calgon, Jacobi, Norit, and other similar suppliers.
- one of Norit's granu lar activated carbon products is NORIT® GCN 3070.
- Jacobi offers activated carbons in grades that include CZ, CS, CR, CT, CX, and GA-Plus in a variety of particles sizes.
- the active carbon may be nano-scaled carbon particle, such as carbon nanotu bes of any number of walls, carbon nanohorns, bamboo-like carbon nanostructures, fullerenes and fullerene aggregates, and graphene including few layer graphene and oxidized graphene.
- active particles may include, but are not limited to, ion exchange resins, desiccants, silicates, molecu lar sieves, silica gels, activated alu mina, zeolites, perlite, sepiolite, Fu ller's Earth, magnesium silicate, metal oxides (e.g.
- iron oxide iron oxide nanoparticles like about 12 nm Fe 3 0 4 , manganese oxide, copper oxide, and aluminu m oxide), gold, platinu m, iodine pentoxide, phosphorus pentoxide, nanoparticles (e.g.
- metal nanoparticles like gold and silver metal oxide nanoparticles like alumina; magnetic, paramagnetic, and superparamagnetic nanoparticles like gadoliniu m oxide, various crystal structures of iron oxide like hematite and magnetite, gado-nanotu bes, and endofullerenes like Gd@C 6 o; and core-shell and onionated nanoparticles like gold and silver nanoshells, onionated iron oxide, and others nanoparticles or microparticles with an outer shell of any of said materials) and any combination of the foregoing (including activated carbon).
- Ion exchange resins include, for example, a polymer with a backbone, such as styrene-divinyl benzene (DVB) copolymer, acrylates, methacrylates, phenol formaldehyde condensates, and epichlorohydrin amine condensates; and a plurality of electrically charged functional groups attached to the polymer backbone.
- the active particles are a combination of various active particles.
- the porous mass may comprise mu ltiple active particles.
- an active particle may comprise at least one element selected from the group of active particles disclosed herein . It shou ld be noted that "element" is being used as a general term to describe items in a list.
- the active particles are combined with at least one flavorant.
- Suitable active particles may have at least one dimension of about less than one nanometer, such as graphene, to as large as a particle having a diameter of about 5000 microns. Active particles may range from a lower size limit in at least one dimension of about: 0. 1 nanometers, 0.5 nanometers, 1 nanometer, 10 nanometers, 100 nanometers, 500 nanometers, 1 micron, 5 microns, 10 microns, 50 microns, 100 microns, 150 microns, 200 microns, or 250 microns.
- the active particles may range from an upper size limit in at least one dimension of about: 5000 microns, 2000 microns, 1000 microns, 900 microns, 700 microns, 500 microns, 400 microns, 300 microns, 250 microns, 200 microns, 150 microns, 100 microns, 50 microns, 10 microns, or 500 nanometers. Any combination of lower limits and u pper limits above may be suitable for use in the embodiments described herein, wherein the selected maximum size is greater than the selected minimum size.
- the active particles may be a mixture of particle sizes ranging from the above lower and upper limits.
- the size of the active particles may be polymodal.
- the binder particles may be any suitable thermoplastic binder particles.
- the binder particles exhibit virtually no flow at its melting temperature. This means a material that when heated to its melting temperature exhibits little to no polymer flow. Materials meeting these criteria include, but are not limited to, ultrahigh molecular weight polyethylene, very high molecular weight polyethylene, high molecular weight polyethylene, and combinations thereof.
- the binder particles have a melt flow index (MFI, ASTM D 1238) of less than or equal to about 3.5 g/lOmin at 190°C and 15 kg (or about 0-3.5 g/lOmin at 190°C and 15 kg).
- the binder particles have a melt flow index (MFI) of less than or equal to about 2.0 g/lOmin at 190°C and 15 Kg (or about 0-2.0 g/lOmin at 190°C and 15 kg).
- MFI melt flow index
- UHMWPE ultra high molecular weight polyethylene
- VHMWPE very high molecular weight polyethylene
- HMWPE high molecular weight polyethylene
- ultra-high molecular weight polyethylene refers to polyethylene compositions with weight- average molecular weight of at least about 3 x 10 6 g/mol.
- the molecular weight of the ultra-high molecular weight polyethylene composition is between about 3 x 10 6 g/mol and about 30 x 10 6 g/mol, or between about 3 x 10 6 g/mol and about 20 x 10 6 g/mol, or between about 3 x 10 6 g/mol and about 10 x 10 6 g/mol, or between about 3 x 10 6 g/mol and about 6 x 10 6 g/mol.
- “Very-high molecular weight polyethylene” refers to polyethylene compositions with a weight average molecular weight of less than about 3 x 10 6 g/mol and more than about 1 x 10 6 g/mol. In some embodiments, the molecular weight of the very-high molecular weight polyethylene composition is between about 2 x 10 6 g/mol and less than about 3 x 10 6 g/mol. "High molecular weight polyethylene” refers to polyethylene compositions with weight-average molecular weight of at least about 3 x 10 5 g/mol to 1 x 10 6 g/mol. For purposes of the present specification, the molecular weights referenced herein are determined in accordance with the Margolies equation ("Margolies molecular weight").
- Suitable polyethylene materials are commercially available from several sources including GUR ® UHMWPE from Ticona Polymers LLC, a division of Celanese Corporation of Dallas, TX, and DSM (Netherland), Braskem (Brazil), Beijing Factory No. 2 (BAAF), Shanghai Chemical, and Qilu (People's Republic of China), Mitsui and Asahi (Japan).
- GUR ® polymers may include: GUR ® 2000 series (2105, 2122, 2122-5, 2126), GUR ® 4000 series (4120, 4130, 4150, 4170, 4012, 4122-5, 4022-6, 4050-3/4150-3), GUR ® 8000 series (8110, 8020), GUR ® X series (X143, X184, X168, X172, X192).
- a suitable polyethylene material is that having an intrinsic viscosity in the range of about 5 dl/g to about 30 dl/g and a degree of crystallinity of about 80% or more as described in U.S. Patent Application Publication No. 2008/0090081.
- Another example of a suitable polyethylene material is that having a molecular weight in the range of about 300,000 g/mol to about 2,000,000 g/mol as determined by ASTM-D 4020, an average particle size, D 50 , between about 300 ⁇ and about 1500 ⁇ , and a bulk density between about 0.25 g/ml and about 0.5 g/ml as described in International Application No. PCT/US2011/034947 filed May 3, 2011.
- the binder particles may assume any shape. Such shapes include spherical, hyperion, asteroidal, chrondular or interplanetary dust-like, granulated, potato, irregular, or combinations thereof.
- the binder particles suitable described herein are non-fibrous.
- the binder particles are in the form of a powder, pellet, or particulate.
- the binder particles are a combination of various binder particles.
- the binder particles may range from a lower size limit in at least one dimension of about: 0.1 nanometers, 0.5 nanometers, 1 nanometer, 10 nanometers, 100 nanometers, 500 nanometers, 1 micron, 5 microns, 10 microns, 50 microns, 100 microns, 150 microns, 200 microns, and 250 microns.
- the binder particles may range from an upper size limit in at least one dimension of about: 5000 microns, 2000 microns, 1000 microns, 900 microns, 700 microns, 500 microns, 400 microns, 300 microns, 250 microns, 200 microns, 150 microns, 100 microns, 50 microns, 10 microns, and 500 nanometers. Any combination of lower limits and upper limits above may be suitable for use in the embodiments described herein, wherein the selected maximum size is greater than the selected minimum size.
- the binder particles may be a mixture of particle sizes ranging from the above lower and upper limits.
- smaller diameter particles may be advantageous in faster heating for binding of the binder particles together, which may be especially useful in high-throughput processes for producing porous masses described herein.
- the ratio of binder particle size to active particle size can include any iteration as dictated by the size ranges for each described herein, specific size ratios may be advantageous for specific applications and/or products.
- the sizes of the active particles and binder particles should be such that the EPD allows for drawing fluids through the porous mass.
- the ratio of binder particle size to active particle size may range from about 10 : 1 to about 1 : 10, or more preferably range from about 1 : 1.5 to about 1 : 4.
- the binder particles may have a bulk density in the range of about 0.10 g/cm 3 to about 0.55 g/cm 3 .
- the bulk density may be in the range of about 0.17 g/cm 3 to about 0.50 g/cm 3 .
- the bulk density may be in the range of about 0.20 g/cm 3 to about 0.47 g/cm 3 .
- thermoplastics include, but are not limited to, polyolefins, polyesters, polyamides (or nylons), polyacrylics, polystyrenes, polyvinyls, polytetrafluoroethylene (PTFE), polyether ether ketone (PEEK), any copolymer thereof, any derivative thereof, and any combination thereof.
- Non-fibrous plasticized cellulose derivatives may also be suitable for use as binder particles described herein.
- suitable polyolefins include, but are not limited to, polyethylene, polypropylene, polybutylene, polymethylpentene, any copolymer thereof, any derivative thereof, any combination thereof, and the like.
- suitable polyethylenes further include low-density polyethylene, linear low-density polyethylene, high-density polyethylene, any copolymer thereof, any derivative thereof, any combination thereof, and the like.
- suitable polyesters include polyethylene terephthalate, polybutylene terephthalate, polycyclohexylene dimethylene terephthalate, polytrimethylene terephthalate, any copolymer thereof, any derivative thereof, any combination thereof, and the like.
- suitable polyacrylics include, but are not limited to, polymethyl methacrylate, any copolymer thereof, any derivative thereof, any combination thereof, and the like.
- su itable polystyrenes include, but are not limited to, polystyrene, acrylonitrile-butadiene-styrene, styrene-acrylonitrile, styrene-butadiene, styrene-maleic anhydride, any copolymer thereof, any derivative thereof, any combination thereof, and the like.
- Suitable polyvi nyls include, but are not limited to, ethylene vinyl acetate, ethylene vinyl alcohol, polyvinyl chloride, any copolymer thereof, any derivative thereof, any combination thereof, and the like.
- suitable cellu losics include, but are not limited to, cellulose acetate, cellulose acetate butyrate, plasticized cellulosics, cellu lose propionate, ethyl cellulose, any copolymer thereof, any derivative thereof, any combination thereof, and the like.
- a binder particle may be any copolymer, any derivative, and any combination of the above listed binders.
- the binder particles described herein may have a hydrophilic surface treatment.
- Hydrophilic su rface treatments e.g. , oxygenated functionalities like carboxy, hydroxyl, and epoxy
- a hydrophilic surface treatment to the binder particles may increase the attraction (e.g. , van der Waals, electrostatic, hydrogen bonding, and the like) between the binder particles and the active particles.
- matrix materials and/or porous masses may comprise active particles, binder particles, and additives.
- the matrix material or porous masses may comprise additives in an amount ranging from a lower limit of about 0.01 wt%, 0.05 wt%, 0.1 wt%, 1 wt%, 5 wt%, or 10 wt% of the matrix material or porous masses to an upper limit of about 25 wt%, 15 wt%, 10 wt%, 5 wt%, or 1 wt% of the matrix material or porous masses, and wherein the amount of additives can range from any lower limit to any upper limit and encompass any subset therebetween.
- porous masses may have a void volume in the range of about 40% to about 90%. In some embodiments, porous masses may have a void volume of about 60% to about 90%. In some embodiments, porous masses may have a void volume of about 60% to about 85%. Void volume is the free space left after accounting for the space taken by the active particles.
- void volume is calculated based on the space remaining after accounting for the active particles. To determine void volume, first the upper and lower diameters based on the mesh size were averaged for the active particles, and then the volume was calculated (assuming a spherical shape based on that averaged diameter) using the density of the active material. Then, the percentage void volume is calculated as follows:
- porous masses may have an encapsulated pressure drop (EPD) in the range of about 0.10 to about 25 mm of water per mm length of porous mass. In some embodiments, porous masses may have an EPD in the range of about 0.10 to about 10 mm of water per mm length of porous mass. In some embodiments, porous masses may have an EPD of about 2 to about 7 mm of water per mm length of porous mass (or no greater than 7 mm of water per mm length of porous mass).
- EPD encapsulated pressure drop
- porous masses may have an active particle loading of at least about 1 mg/mm, 2 mg/mm, 3 mg/mm, 4 mg/mm, 5 mg/mm, 6 mg/mm, 7 mg/mm, 8 mg/mm, 9 mg/mm, 10 mg/mm, 11 mg/mm, 12 mg/mm, 13 mg/mm, 14 mg/mm, 15 mg/mm, 16 mg/mm, 17 mg/mm, 18 mg/mm, 19 mg/mm, 20 mg/mm, 21 mg/mm, 22 mg/mm, 23 mg/mm, 24 mg/mm, or 25 mg/mm in combination with an EPD of less than about 20 mm of water or less per mm of length, 19 mm of water or less per mm of length, 18 mm of water or less per mm of length, 17 mm of water or less per mm of length, 16 mm of water or less per mm of length, 15 mm of water or less per mm of length, 14 mm of water or less per mm of length, 13 mm of water or less
- porous masses may have an active particle loading of at least about 1 mg/mm and an EPD of about 20 mm of water or less per mm of length.
- the porous mass may have an active particle loading of at least about 1 mg/mm and an EPD of about 20 mm of water or less per mm of length, wherein the active particle is not carbon.
- the porous mass may have an active particle comprising carbon with a loading of at least 6 mg/mm in combination with an EPD of 10 mm of water or less per mm of length.
- porous masses may be effective at the removal of components from tobacco smoke, for example, those in the listing herein. Porous masses may be used to reduce the delivery of certain tobacco smoke components targeted by the World Health Organization Framework Convention on Tobacco Control ("WHO FCTC").
- WHO FCTC World Health Organization Framework Convention on Tobacco Control
- a porous mass where activated carbon is used as the active particles can be used to reduce the delivery of certain tobacco smoke components to levels below the WHO FCTC recommendations.
- the components may, in some embodiments, include, but not be limited to, acetaldehyde, acrolein, benzene, benzo[a]pyrene, 1,3-butadiene, and formaldehyde.
- Porous masses with activated carbon may reduce acetaldehydes in a smoke stream by about 3.0% to about 6.5%/mm length of porous mass; acrolein in a smoke stream by about 7.5% to about 12%/mm length of porous mass; benzene in a smoke stream by about 5.5% to about 8.0%/mm length of porous mass; benzo[a]pyrene in a smoke stream by about 9.0% to about 21.0%/mm length of porous mass; 1,3-butadiene in a smoke stream by about 1.5% to about 3.5%/mm length of porous mass; and formaldehyde in a smoke stream by about 9.0% to about 11.0%/mm length of porous mass.
- porous masses where an ion exchange resin is used as the active particles can be used to reduce the delivery of certain tobacco smoke components to below the WHO recommendations.
- porous masses having an ion exchange resin may reduce: acetaldehydes in a smoke stream by about 5.0% to about 7.0%/mm length of porous mass; acrolein in a smoke stream by about 4.0% to about 6.5%/mm length of porous mass; and formaldehyde in a smoke stream by about 9.0% to about 11.0%/mm length of porous mass.
- the reductions cited herein refer to carbonyl testing by a method similar to the CORESTA Recommended Method No. 74, Determination of Selected Carbonyls in Mainstream Cigarette Smoke by High Performance Liquid Chromatography, using the Health Canada Intense Smoking Protocol.
- the sample cigarettes were prepared from a US commercial brand by manually replacing the standard cellulose acetate filter with a dual segmented filter consisting of porous mass segments and cellulose acetate segments. The length of the porous mass segment varied between 5 and 15 mm.
- Suitable additives may include, but not be limited to, active compounds, ionic resins, zeolites, nanoparticles, microwave enhancement additives, ceramic particles, glass beads, softening agents, plasticizers, pigments, dyes, flavorants, aromas, controlled release vesicles, adhesives, tackifiers, surface modification agents, vitamins, peroxides, biocides, antifungals, antimicrobials, antistatic agents, flame retardants, degradation agents, and any combination thereof.
- Suitable active compounds may be compounds and/or molecules suitable for removing components from a smoke stream including, but not limited to, malic acid, potassium carbonate, citric acid, tartaric acid, lactic acid, ascorbic acid, polyethyleneimine, cyclodextrin, sodium hydroxide, sulphamic acid, sodium sulphamate, polyvinyl acetate, carboxylated acrylate, and any combination thereof. It should be noted that an active particle may also be considered an active compound, and vice versa. By way of nonlimiting example, fullerenes and some carbon nanotubes may be considered to be a particulate and a molecule.
- Suitable ionic resins may include, but not be limited to, polymers with a backbone, such as styrene-divinyl benzene (DVB) copolymer, acrylates, methacrylates, phenol formaldehyde condensates, and epichlorohydrin amine condensates; a plurality of electrically charged functional groups attached to the polymer backbone; and any combination thereof.
- a backbone such as styrene-divinyl benzene (DVB) copolymer, acrylates, methacrylates, phenol formaldehyde condensates, and epichlorohydrin amine condensates; a plurality of electrically charged functional groups attached to the polymer backbone; and any combination thereof.
- DVD styrene-divinyl benzene
- Zeolites may include crystalline aluminosilicates having pores, e.g., channels, or cavities of uniform, molecular-sized dimensions.
- Zeolites may include natural and synthetic materials. Suitable zeolites may include, but not be limited to, zeolite BETA tetragonal), zeolite ZSM-5 (Na n (Al n Si 9 6- n Oi9 2 ) 16 H 2 0, with n ⁇ 27), zeolite A, zeolite X, zeolite Y, zeolite K-G, zeolite ZK-5, zeolite ZK-4, mesoporous silicates, SBA- 15, MCM-41, MCM48 modified by 3-aminopropylsilyl groups, alumino-phosphates, mesoporous aluminosilicates, other related porous materials (e.g. , such as mixed oxide gels), and any combination thereof.
- Suitable nanoparticles may include, but not be limited to, nano- scaled carbon particles like carbon nanotubes of any number of walls, carbon nanohorns, bamboo-like carbon nanostructures, fullerenes and fullerene aggregates, and graphene including few layer graphene and oxidized graphene; metal nanoparticles like gold and silver; metal oxide nanoparticles like alumina, silica, and titania; magnetic, paramagnetic, and superparamagnetic nanoparticles like gadolinium oxide, various crystal structures of iron oxide like hematite and magnetite, about 12 nm Fe 3 0 4 , gado-nanotubes, and endofullerenes like Gd@C 6 o; and core-shell and onionated nanoparticles like gold and silver nanoshells, onionated iron oxide, and other nanoparticles or microparticles with an outer shell of any of said materials) and any combination of the foregoing (including activated carbon).
- nanoparticles may include nanorods, nanospheres, nanorices, nanowires, nanostars (like nanotripods and nanotetrapods), hollow nanostructures, hybrid nanostructures that are two or more nanoparticles connected as one, and non- nano particles with nano-coatings or nano-thick walls.
- nanoparticles may include the functionalized derivatives of nanoparticles including, but not limited to, nanoparticles that have been functionalized covalently and/or non-covalently, e.g. , pi-stacking, physisorption, ionic association, van der Waals association, and the like.
- Suitable functional groups may include, but not be limited to, moieties comprising amines (1°, 2°, or 3°), amides, carboxylic acids, aldehydes, ketones, ethers, esters, peroxides, silyls, organosilanes, hydrocarbons, aromatic hydrocarbons, and any combination thereof; polymers; chelating agents like ethylenediamine tetraacetate, diethylenetriaminepentaacetic acid, triglycollamic acid, and a structure comprising a pyrrole ring; and any combination thereof.
- Functional groups may enhance removal of smoke components and/or enhance incorporation of nanoparticles into a porous mass.
- Suitable microwave enhancement additives may include, but not be limited to, microwave responsive polymers, carbon particles, fullerenes, carbon nanotubes, metal nanoparticles, water, and the like, and any combination thereof.
- Suitable ceramic particles may include, but not be limited to, oxides (e.g. , silica, titania, alumina, beryllia, ceria, and zirconia), nonoxides ⁇ e.g. , carbides, borides, nitrides, and silicides), composites thereof, and any combination thereof. Ceramic particles may be crystalline, non-crystalline, or semi-crystalline.
- oxides e.g. , silica, titania, alumina, beryllia, ceria, and zirconia
- nonoxides e.g. , carbides, borides, nitrides, and silicides
- Ceramic particles may be crystalline, non-crystalline, or semi-crystalline.
- pigments refer to compounds and/or particles that impart color and are incorporated throughout the matrix material and/or a component thereof.
- Suitable pigments may include, but not be limited to, titanium dioxide, silicon dioxide, tartrazine, E102, phthalocyanine blue, phthalocyanine green, quinacridones, perylene tetracarboxylic acid di-imides, dioxazines, perinones disazo pigments, anthraquinone pigments, carbon black, titanium dioxide, metal powders, iron oxide, ultramarine, and any combination thereof.
- dyes refer to compounds and/or particles that impart color and are a surface treatment.
- Suitable dyes may include, but not be limited to, CARTASOL® dyes (cationic dyes, available from Clariant Services) in liquid and/or granular form (e.g., CARTASOL® Brilliant Yellow K-6G liquid, CARTASOL® Yellow K-4GL liquid, CARTASOL® Yellow K-GL liquid, CARTASOL® Orange K-3GL liquid, CARTASOL® Scarlet K-2GL liquid, CARTASOL® Red K-3BN liquid, CARTASOL® Blue K-5R liqu id, CARTASOL® Blue K-RL liqu id, CARTASOL® Turquoise K-RL liquid/granules, CARTASOL® Brown K-BL liqu id), FASTUSOL® dyes (an auxochrome, available from BASF) (e.g. , Yellow 3GL, Fastusol C Blue 74L) .
- Suitable fiavorants may be any flavorant suitable for use in smoking device filters including those that impart a taste and/or a flavor to the smoke stream .
- Suitable fiavorants may include, but not be limited to, organic material (or naturally flavored particles), carriers for natural flavors, carriers for artificial flavors, and any combination thereof.
- Organic materials (or naturally flavored particles) include, but are not limited to, tobacco, cloves (e.g., ground cloves and clove flowers), cocoa, coffee, teas, and the like.
- Natural and artificial flavors may include, but are not limited to, menthol, cloves, cherry, chocolate, orange, mint, mango, vanilla, cinnamon, tobacco, and the like.
- Such flavors may be provided by menthol, anethole (licorice), anisole, limonene (citrus), eugenol (clove), and the like, and any combination thereof.
- more than one flavorant may be used including any combination of the fiavorants provided herein. These fiavorants may be placed in the tobacco column, in a section of a filter, or in the porous masses described herein. The amou nt of flavorant will depend on the desired level of flavor in the smoke stream taking into accou nt all filter sections, the length of the smoking device, the type of smoking device, the diameter of the smoking device, as well as other factors known to those of skill in the art.
- Suitable aromas may include, but not be limited to, methyl formate, methyl acetate, methyl butyrate, ethyl acetate, ethyl butyrate, isoamyl acetate, pentyl butyrate, pentyl pentanoate, octyl acetate, myrcene, geraniol, nerol, citral, citronellal, citronellol, linalool, nerolidol, limonene, camphor, terpineol, alpha-ionone, thujone, benzaldehyde, eugenol, cinnamaldehyde, ethyl maltol, vanilla, anisole, anethole, estragole, thymol, fu raneol, methanol, spices, spice extracts, herb extracts, essential oils, smelling salts, volatile organic compounds, volatile small molecu les
- Suitable tackifiers may include, but not be limited to, methylcellulose, ethylcellulose, hydroxyethylcellulose, carboxy methylcellulose, carboxy ethylcellulose, water-soluble cellu lose acetate, amides, diamines, polyesters, polycarbonates, silyl-modified polyamide compounds, polycarbamates, urethanes, natural resins, shellacs, acrylic acid polymers, 2- ethylhexylacrylate, acrylic acid ester polymers, acrylic acid derivative polymers, acrylic acid homopolymers, anacrylic acid ester homopolymers, poly(methyl acrylate), poly(butyl acrylate), poly(2-ethylhexyl acrylate), acrylic acid ester copolymers, methacrylic acid derivative polymers, methacrylic acid homopolymers, methacrylic acid ester homopolymers, poly(methyl methacrylate), poly(butyl methacrylate), poly(2-ethylhexyl
- Suitable vitamins may include, but not be limited to, vitamin A, vitamin Bl, vitamin B2, vitamin C, vitamin D, vitamin E, and any combination thereof.
- Suitable antimicrobials may include, but not be limited to, antimicrobial metal ions, chlorhexidine, chlorhexidine salt, triclosan, polymoxin, tetracycline, amino glycoside (e.g. , gentamicin), rifampicin, bacitracin, erythromycin, neomycin, chloramphenicol, miconazole, quinolone, penicillin, nonoxynol 9, fusidic acid, cephalosporin, mupirocin, metronidazolea secropin, proteg rin, bacteriolcin, defensin, nitrofu razone, mafenide, acyclovir, vanocmycin, clindamycin, lincomycin, sulfonamide, norfloxacin, pefloxacin, nalidizic acid, oxalic acid, enoxacin acid, ciprofloxacin, polyhexam
- biodegradable biguanides like polyethylene hexaniethylene biguanide (PEH MB)), clilorhexidine gluconate, chlorohexidine hydrochloride, ethylenediaminetetraacetic acid (EDTA), EDTA derivatives (e.g., disodium EDTA or tetrasodium EDTA), the like, and any combination thereof.
- PEH MB polyethylene hexaniethylene biguanide
- EDTA ethylenediaminetetraacetic acid
- EDTA derivatives e.g., disodium EDTA or tetrasodium EDTA
- Antistatic agents may, in some embodiments, comprise any suitable anionic, cationic, amphoteric or nonionic antistatic agent.
- Anionic antistatic agents may generally include, but not be limited to, alkali su lfates, alkali phosphates, phosphate esters of alcohols, phosphate esters of ethoxylated alcohols, and any combination thereof.
- Exam ples may include, but not be limited to, alkali neutralized phosphate ester (e.g. , TRYFAC® 5559 or TRYFRAC® 5576, available from Henkel Corporation, Mau ldin, SC).
- Cationic antistatic agents may generally include, but not be limited to, quaternary ammoniu m salts and imidazolines which possess a positive charge.
- nonionics include the poly(oxyalkylene) derivatives, e.g., ethoxylated fatty acids like EMEREST® 2650 (an ethoxylated fatty acid, available from Henkel Corporation, Mau ldin, SC), ethoxylated fatty alcohols like TRYCOL® 5964 (an ethoxylated lauryl alcohol, available from Henkel Corporation, Mauldin, SC), ethoxylated fatty amines like TRYMEEN® 6606 (an ethoxylated tallow amine, available from Henkel Corporation, Mau ldin, SC), alkanolamides like EMID® 6545 (an oleic diethanolamine, available from Henkel Corporation, Mauldin, SC), and any combination thereof.
- Anionic and cationic materials tend to be more effective antistatic
- porous masses, and the like may be used as fluid filters (or parts thereof) in other applications including, but not limited to, liquid filtration, water purification, air filters in motorized vehicles, air filters in medical devices, air filters for household use, and the like.
- fluid filters or parts thereof
- a system may include a material path with a mold cavity disposed along the material path, at least one hopper before at least a portion of the mold cavity for feeding a matrix material to the material path, a heat source in thermal communication with at least a first portion of the material path, and a cutter disposed along the material path after the first portion of the material path.
- Some embodiments may include continuously introducing a matrix material into a mold cavity and disposing a release wrapper as a liner of the mold cavity. Further, said embodiments may include heating at least a portion of the matrix material so as to bind the matrix material at a plurality of contact points thereby forming a porous mass length and cutting the porous mass length radially thereby yielding a porous mass.
- Some embodiments may include continuously introducing a matrix material into a mold cavity, heating at least a portion of the matrix material so as to bind the matrix material at a plurality of contact points thereby forming a porous mass length, and extruding the porous mass length through a die.
- a system may include a mold cavity comprising at least two mold cavity parts where a first conveyer includes a first mold cavity part and a second conveyer include a second mold cavity part. Said first conveyer and second conveyer may be capable of bringing together the first mold cavity part and the second mold cavity part to form the mold cavity and then separating the first mold cavity part from the second mold cavity part in a continuous fashion.
- the system may further include a hopper capable for filling the mold cavity with a matrix material and a heat source in thermal communication with at least a first portion of the mold cavity for transforming the matrix material into a porous mass.
- Some embodiments may include introducing a matrix material into a plurality of mold cavities and heating the matrix material in the mold cavities so as to bind the matrix material at a plurality of contact points, thereby forming a porous mass.
- Embodiments disclosed herein include:
- C. a method that includes feeding via pneumatic dense phase feeding a matrix material into a mold cavity to form a desired cross-sectional shape, the matrix material comprising a plurality of active particles, a plurality of binder particles having a hydrophilic surface modification, and a microwave enhancement additive; heating at least a portion of the matrix material by irradiating the matrix material with microwave irradiation so as to bind at least a portion of the matrix material at a plurality of sintered contact points, thereby forming a porous mass length; reshaping the cross-sectional shape the porous mass length after heating; cooling the porous mass length; and cutting the porous mass length, thereby producing a porous mass.
- Each of embodiments A, B, and C may have one or more of the following additional elements in any combination : Element 1 : wherein pneumatic dense phase feeding occurs at a feeding rate of about 1 m/min to about 800 m/min; Element 2 : wherein pneumatic dense phase feeding occurs at a feeding rate of about 1 m/min to about 800 m/min and the mold cavity has a diameter of about 3 mm to about 10 mm; Element 3 : wherein heating involves irradiating with microwave radiation the at least a portion of the matrix material; Element 4: wherein the matrix material further comprises a microwave enhancement additive; Element 5 : wherein the mold cavity is at least partially formed by a paper wrapper; Element 6 : wherein the binder particle has a hydrophilic surface treatment; Element 7: the method further including reshaping the cross- sectional shape the porous mass length after heating; Element 8: the method further including reheating the porous mass length before cutting, thereby forming a second plurality
- exemplary combinations applicable to A, B, C include: Element 1 in combination with Element 3; Element 2 in combination with Element 3; Element 4 in combination with any of the foregoing; Element 3 in combination with Element 4; at least one of Elements 7- 9 in combination with any of the foregoing; Element 7 in combination with Element 8; Element 7 in combination with Element 9; Element 7 in combination with Element 3; Element 5 in combination with any of the foregoing; one of Elements 10-14 in combination with any of the foregoing; Element 6 in combination with any of the foregoing; and Element 6 in combination with one of Elements 1-4.
- Example 1 To measure integrity, samples are placed in a French square glass bottle and shaken vigorously using a wrist action shaker for 5 minutes. Upon completion, the weight of the samples before and after shaking are compared. The difference is converted to a percent loss value. This test simulates deterioration under extreme circumstances. Less than 2% weight loss is assumed to be acceptable quality.
- porous masses can be designed to have comparable integrity to a Dalmatian filter (plasticized carbon-on-tow filter), which is used for increased removal of smoke components.
- Example 2 To measure the amount of particles released when a fluid is drawn through a filter (or porous mass), samples are dry puffed and the particles released are collected on a Cambridge pad.
- porous masses have comparable particle amounts that are released upon drawing as compared to Dalmatian filters even with many times more carbon loading, 4.5 times more in this example. Further, particle release can be mitigated with porous masses with treatments like washing. Other mitigating steps could be increasing the binder concentration in the porous mass, increasing the degree of mechanical binding in the porous mass (e.g., by increasing the time at binding temperatures), optimizing the size and shape of the additive (e.g. , carbon), and the like.
- the additive e.g. , carbon
- Example 3 A matrix material of 80 wt% carbon (PICATIF, 60% active carbon available from Jacobi) and 20 wt% GUR® 2105 were mixed and poured into paper tubes plugged at one end. The filled tubes were placed in a microwave oven and irradiated for 75 seconds (about 300 W and about 2.45 GHz). A significant portion of the matrix material had bonded together and was cut into two sections, 17 mm and 21 mm. The sections of porous mass were analyzed and demonstrated EPDs of 8.4 mm of water/mm of length and 2.7 mm of water/mm of length, respectively.
- PICATIF 80 wt% carbon
- GUR® 2105 20 wt% GUR® 2105 were mixed and poured into paper tubes plugged at one end. The filled tubes were placed in a microwave oven and irradiated for 75 seconds (about 300 W and about 2.45 GHz). A significant portion of the matrix material had bonded together and was cut into two sections, 17 mm and 21 mm. The sections of porous mass were analyzed and
- microwave irradiation in the production of porous masses and the like.
- microwave irradiation may, in some embodiments, be used in addition to other heating techniques in the formation of porous masses and the like described herein.
- Example 4 Five porous masses were prepared for each of a first matrix material of 80 wt% carbon (PICATIF, 60% active carbon available from Jacobi) and 20% GUR® 2105 and a second matrix material 80 wt% carbon (PICATIF, 60% active carbon available from Jacobi) and 20 wt% plasma treated GUR® 2105 (i.e., an example of a binder with a hydrophilic surface modification).
- the properties of the resultant porous masses were measured (Table 3).
- the ovality of the porous mass is measured with a method similar to that used to measure the ovality of traditional cigarette filters where a circumference/ovality tester optically scans the sample to measure the circumference, maximum diameter (a), and minimum diameter (b). Ovality is calculated as a-b and indicates the degree of deformation from circular to ovular of the cross-sectional shape.
- the standard deviation in the porous masses comprising plasma treated GUR® 2105 is equal to or less than the non-treated GUR® 2105. Further, in comparing the values of the EPD between the samples, for the same concentration of binder particles, the plasma treated GUR® 2105 yields a lower EPD than the non-treated GUR® 2105. This example demonstrates that binder particles with hydrophilic surfaces minimize variability in porous mass properties (indicated by the coefficient of variability reported) and reduce the overall EPD of the porous mass.
- Example 5 Two matrix material samples were used for preparing porous masses: (1) control - 10 wt% GUR® 2105, 10 wt% GUR® 2122, 80 wt% activated carbon and (2) graphite - 10 wt% GUR® 2105, 10 wt% GUR® 2122, 79 wt% activated carbon, 1 wt% powdered graphite (available from McMaster-Carr) (i.e. , an example of a microwave enhancement additive).
- the matrix material was fed via pneumatic dense phase feeding at 60 psi into a mold cavity formed by paper rolled into a tube/cylinder shape. The mold cavity with matrix material therein was passed through a single mode 2.45 GHz microwave chamber at 2 m/min. The microwave input energy was varied.
- the resultant porous masses were analyzed for EPD, circumference, and rod integrity (as measured above) (Table 4).
- compositions and methods are described in terms of “comprising,” “containing,” or “including” various components or steps, the compositions and methods can also “consist essentially of” or “consist of” the various components and steps. All numbers and ranges disclosed above may vary by some amount. Whenever a numerical range with a lower limit and an upper limit is disclosed, any number and any included range falling within the range is specifically disclosed. In particular, every range of values (of the form, “from about a to about b,” or, equivalently, “from approximately a to b,” or, equivalently, “from approximately a-b”) disclosed herein is to be understood to set forth every number and range encompassed within the broader range of values.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Powder Metallurgy (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Filtering Materials (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Catalysts (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
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SG11201502790XA SG11201502790XA (en) | 2012-10-11 | 2013-10-10 | Apparatuses, systems, and associated methods for forming porous masses for smoke filters |
EA201590710A EA029736B1 (ru) | 2012-10-11 | 2013-10-10 | Устройства, системы и соответствующие способы для образования пористых масс для фильтров дыма |
JP2015536881A JP6039090B2 (ja) | 2012-10-11 | 2013-10-10 | 煙フィルター用多孔質体を形成する装置、システム及び関連する方法 |
BR112015008145A BR112015008145A2 (pt) | 2012-10-11 | 2013-10-10 | aparelhos, sistemas e métodos associados para formar massas porosas para filtros de fumaça |
CA2887527A CA2887527C (en) | 2012-10-11 | 2013-10-10 | Apparatuses, systems, and associated methods for forming porous masses for smoke filters |
CN201380059443.1A CN104797148A (zh) | 2012-10-11 | 2013-10-10 | 形成用于烟雾过滤器的多孔物质的设备、***和相关方法 |
EP13845853.4A EP2906058A4 (en) | 2012-10-11 | 2013-10-10 | APPARATUSES, SYSTEMS, AND RELATED METHODS FOR POROUS MASS FORMATION FOR SMOKE FILTERS |
MX2015004625A MX2015004625A (es) | 2012-10-11 | 2013-10-10 | Aparatos, sistemas y metodos asociados para la formacion de masas porosas para filtros de humo. |
KR1020157011791A KR20150064199A (ko) | 2012-10-11 | 2013-10-10 | 연기 필터용 다공체를 형성시키기 위한 장치, 시스템 및 관련 방법 |
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PCT/US2012/059743 WO2013066589A1 (en) | 2011-10-14 | 2012-10-11 | Apparatuses, systems, and associated methods for forming porous masses for smoke filter |
USPCT/US2012/059743 | 2012-10-11 | ||
US201361779232P | 2013-03-13 | 2013-03-13 | |
US61/779,232 | 2013-03-13 |
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WO2014059101A1 true WO2014059101A1 (en) | 2014-04-17 |
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PCT/US2013/064269 WO2014059101A1 (en) | 2012-10-11 | 2013-10-10 | Apparatuses, systems, and associated methods for forming porous masses for smoke filters |
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EP (1) | EP2906058A4 (zh) |
JP (1) | JP6039090B2 (zh) |
KR (1) | KR20150064199A (zh) |
CN (1) | CN104797148A (zh) |
AR (1) | AR092976A1 (zh) |
BR (1) | BR112015008145A2 (zh) |
CA (1) | CA2887527C (zh) |
CL (1) | CL2015000899A1 (zh) |
CO (1) | CO7350615A2 (zh) |
EA (1) | EA029736B1 (zh) |
MX (1) | MX2015004625A (zh) |
SG (1) | SG11201502790XA (zh) |
UY (1) | UY35074A (zh) |
WO (1) | WO2014059101A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9027566B2 (en) | 2010-10-15 | 2015-05-12 | Celanese Acetate Llc | Apparatuses, systems, and associated methods for forming porous masses for smoke filter |
WO2021048637A1 (es) * | 2019-09-10 | 2021-03-18 | Monte Paz México S.A. De C.V. | Material filtrante y filtro para retener hidrocarburos poliaromáticos, carbonilos y otros compuestos del humo de productos de tabaco. |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106215527B (zh) * | 2016-08-22 | 2017-11-24 | 广州康瑞环保科技有限公司 | 过滤介质、其烧结方法及实施该方法的烧结装置 |
CN108126470A (zh) * | 2016-11-30 | 2018-06-08 | 缑泽明 | 一种薄板型吸附滤芯及其制备装置和方法 |
KR102393804B1 (ko) | 2019-12-19 | 2022-05-03 | 주식회사 케이티앤지 | 튜브필터 제조장치 및 튜브필터의 제조방법 |
WO2021125497A1 (ko) * | 2019-12-19 | 2021-06-24 | 주식회사 케이티앤지 | 튜브필터 제조장치 및 튜브필터의 제조방법 |
CN215305176U (zh) * | 2021-06-15 | 2021-12-28 | 江门市新会恒隆家居创新用品有限公司 | 多士炉 |
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2013
- 2013-10-10 BR BR112015008145A patent/BR112015008145A2/pt not_active Application Discontinuation
- 2013-10-10 CA CA2887527A patent/CA2887527C/en not_active Expired - Fee Related
- 2013-10-10 WO PCT/US2013/064269 patent/WO2014059101A1/en active Application Filing
- 2013-10-10 MX MX2015004625A patent/MX2015004625A/es unknown
- 2013-10-10 AR ARP130103685A patent/AR092976A1/es active IP Right Grant
- 2013-10-10 CN CN201380059443.1A patent/CN104797148A/zh active Pending
- 2013-10-10 KR KR1020157011791A patent/KR20150064199A/ko not_active Application Discontinuation
- 2013-10-10 SG SG11201502790XA patent/SG11201502790XA/en unknown
- 2013-10-10 EP EP13845853.4A patent/EP2906058A4/en not_active Withdrawn
- 2013-10-10 UY UY0001035074A patent/UY35074A/es unknown
- 2013-10-10 JP JP2015536881A patent/JP6039090B2/ja not_active Expired - Fee Related
- 2013-10-10 EA EA201590710A patent/EA029736B1/ru not_active IP Right Cessation
-
2015
- 2015-04-09 CL CL2015000899A patent/CL2015000899A1/es unknown
- 2015-04-30 CO CO15099288A patent/CO7350615A2/es unknown
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US9027566B2 (en) | 2010-10-15 | 2015-05-12 | Celanese Acetate Llc | Apparatuses, systems, and associated methods for forming porous masses for smoke filter |
US9138017B2 (en) | 2010-10-15 | 2015-09-22 | Celanese Acetate Llc | Apparatuses, systems, and associated methods for forming porous masses for smoke filter |
US9149069B2 (en) | 2010-10-15 | 2015-10-06 | Celanese Acetate Llc | Apparatuses, systems, and associated methods for forming porous masses for smoke filter |
US9179708B2 (en) | 2010-10-15 | 2015-11-10 | Celanese Acetate Llc | Apparatuses, systems, and associated methods for forming porous masses for smoke filter |
WO2021048637A1 (es) * | 2019-09-10 | 2021-03-18 | Monte Paz México S.A. De C.V. | Material filtrante y filtro para retener hidrocarburos poliaromáticos, carbonilos y otros compuestos del humo de productos de tabaco. |
EP4029828A4 (en) * | 2019-09-10 | 2023-10-04 | Compañia Industrial de Tabacos Monte Paz S.A. | FILTER MATERIAL AND FILTER FOR RETAINING POLYAROMATIC HYDROCARBONS, CARBONYLS AND OTHER COMPOUNDS FROM TOBACCO SMOKE |
Also Published As
Publication number | Publication date |
---|---|
AR092976A1 (es) | 2015-05-13 |
JP6039090B2 (ja) | 2016-12-07 |
CO7350615A2 (es) | 2015-08-10 |
EA201590710A1 (ru) | 2015-09-30 |
KR20150064199A (ko) | 2015-06-10 |
UY35074A (es) | 2014-10-31 |
BR112015008145A2 (pt) | 2017-07-04 |
CN104797148A (zh) | 2015-07-22 |
EA029736B1 (ru) | 2018-05-31 |
EP2906058A4 (en) | 2016-10-05 |
MX2015004625A (es) | 2015-07-14 |
SG11201502790XA (en) | 2015-05-28 |
EP2906058A1 (en) | 2015-08-19 |
CA2887527A1 (en) | 2014-04-17 |
JP2015532110A (ja) | 2015-11-09 |
CL2015000899A1 (es) | 2015-10-23 |
CA2887527C (en) | 2018-01-02 |
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