WO2022231418A1 - Improved composition for restructuring the polymer chain of a waste and/or post-consumption polymer based on the modification of the shear rate, process for recycling a waste and/or post-consumption polymer, and uses of the recycled polymer - Google Patents
Improved composition for restructuring the polymer chain of a waste and/or post-consumption polymer based on the modification of the shear rate, process for recycling a waste and/or post-consumption polymer, and uses of the recycled polymer Download PDFInfo
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- WO2022231418A1 WO2022231418A1 PCT/MX2022/050037 MX2022050037W WO2022231418A1 WO 2022231418 A1 WO2022231418 A1 WO 2022231418A1 MX 2022050037 W MX2022050037 W MX 2022050037W WO 2022231418 A1 WO2022231418 A1 WO 2022231418A1
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- 101100023124 Schizosaccharomyces pombe (strain 972 / ATCC 24843) mfr2 gene Proteins 0.000 claims description 8
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- AXWJKQDGIVWVEW-UHFFFAOYSA-N 2-(dimethylamino)butanedioic acid Chemical compound CN(C)C(C(O)=O)CC(O)=O AXWJKQDGIVWVEW-UHFFFAOYSA-N 0.000 claims description 7
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- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 5
- 239000004745 nonwoven fabric Substances 0.000 description 5
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 4
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- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
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- 239000004702 low-density polyethylene Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 2
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- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 2
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
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- ZNHPPXDUJKXBNM-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)hexane Chemical compound CC(C)(C)OOC(C)CCC(C)OOC(C)(C)C ZNHPPXDUJKXBNM-UHFFFAOYSA-N 0.000 description 1
- LLWADFLAOKUBDR-UHFFFAOYSA-N 2-methyl-4-chlorophenoxybutyric acid Chemical compound CC1=CC(Cl)=CC=C1OCCCC(O)=O LLWADFLAOKUBDR-UHFFFAOYSA-N 0.000 description 1
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- 239000012968 metallocene catalyst Substances 0.000 description 1
- KWKAKUADMBZCLK-UHFFFAOYSA-N methyl heptene Natural products CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 1
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- 229910052759 nickel Inorganic materials 0.000 description 1
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- 229910052763 palladium Inorganic materials 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 125000000864 peroxy group Chemical group O(O*)* 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920013639 polyalphaolefin Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/04—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing carboxylic acids or their salts
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
- C08J11/22—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds
- C08J11/26—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds containing carboxylic acid groups, their anhydrides or esters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Definitions
- the present invention relates to an improved composition for the restructuring of the polymer chain of a waste and/or post-consumer polymer based on the modification of the shear rate, a process for recycling a waste polymer and uses of the recycled polymer. in the food industry, in the waste plastics industry destined for disposal, or anywhere where improved stable recycled polymers are required.
- the objective of the present invention is to provide an improved composition for the restructuring of the polymeric chain of a waste and/or post-consumer polymer based on the modification of the shear rate, also to provide a process for recycling a waste polymer and /or post-consumption, and uses of the recycled polymer in the food industry, in the Industry of plastic waste destined for disposal, or anywhere where improved stable recycled polymers are required, and also to introduce polymers into the circular economy, plastic resins, etc., post-consumption to highly specialized production chains.
- the present invention solves all this serious problem by providing an improved composition and a recycling process for waste and/or post-consumer polymers based on modifying the shear rate of the polymer through the formation of free radicals, where the decrease in molecular weight (degradation) or its increase (cross linking).
- Controlled degradation of polyolefins susceptible to this process leads the product to a low molecular weight and narrower in-process shear rate distribution, consistent with the “reactor grade” polyolefin for which the product is intended.
- Said "rheological control" of the polymers can be achieved through temperature management, in particular with process temperatures higher than 280°C, or in the presence of a combination of free radical generating catalysts during the injection or extrusion process.
- this combination of catalysts is in the form of organic peroxides, which, in the presence of the polymer to be treated (eg, polyolefins, polystyrenes, etc.,) and the appropriate process temperatures, disintegrate into free radicals that initiate the cutting reaction. or between crossing to obtain the rheological properties and Ea final shear rate of the polymer to be treated.
- the polymer to be treated eg, polyolefins, polystyrenes, etc.
- Pa/a/1995/02973 describes a process for recycling a multicomponent blended polymer waste material involving the steps of agglomerating the multicomponent blended polymer waste material and spinning the agglomerate to form a yarn, wherein the multi-component mixed polymer waste material contains a mixture of at least two incompatible polymers.
- an improved composition for the restructuring of the polymeric chain of a waste and/or post-consumer polymer comprises: a) Catalysts based on organic peroxides selected from the group consisting of 2,S"dimethyl-2,5-bis(tert-butyl-peroxy)hexane (DHBP), 2,5-dimethyl-2,S-bis(tert-butylperoxy)hexyne-3 (DYBP), Dicumii-peroxide (DCUP), di-tertbutyperoxide (DTBP), TerbutyLcumyl-peroxythium (BCUP), bis (terbu ⁇ ipsroxHsoprapiljbenzene, and combinations thereof; b) Catalysts based on organic peroxides selected from the group consisting of 2,S"dimethyl-2,5-bis(tert-butyl-peroxy)hexane (DHBP), 2,5-dimethyl-2,S-bis(tert-butylperoxy)hexyn
- Patent US 20180029027 Al describes a catalyst for recycling a plastic chosen from polyethylene, polypropylene, polystyrene and combinations thereof, includes a porous support having an outer surface and at least one pore therein, a depolymerization catalyst component comprising a metallocene catalyst arranged on the outer surface of the porous support, and a reducing catalyst component arranged in at least one pore.
- the outer surface of the porous support comprises less than 10 parts by weight of the reducing catalyst component based on 100 parts by weight of the daspolymerization catalyst component as determined using energy dispersive X-ray spectroscopy (EOS).
- the reducing catalyst component comprises a transition metal selected from the group of iron, nickel, palladium, platinum, and combinations thereof.
- At least one pore of the porous support has a mean pore size of 10 Angstroms.
- this catalyst to recycle a plastic is different from the improved composition for the restructuring of the polymeric chain of a waste and/or post-consumer polymer of the present invention, because its steps, operating conditions, components, percentages are different, as well as its functionality, that is, in This document does not describe or suggest an improved composition for restructuring the polymer chain of a waste and/or post-consumer polymer, comprising: a) Catalysts based on organic peroxides selected from!
- US 20100311849 Al discloses a process for preparing a reactive block copolymer chain extender and for using the chain extender to pull polymer chains together to increase the average molecular weight of the polymer chains.
- the chain extender can be reacted with polymeric materials having functional groups and low molecular weight to couple polymer chains and increase the average molecular weight, thus increasing the intrinsic viscosity and improving the properties of the polymeric material.
- the chain extender is particularly useful for recycling polyethylene terephthalate (PET) and other polymers with functional groups and is also useful as a surface modifier and compatibilizer for polymeric materials that do not have reactive functional groups, such as polyethylene, polypropylene, and polystyrene.
- this reactive block copolymer chain extender and stop using the chain extender for stacking polymer chains together to increase the average molecular weight of the polymer chains is different from the improved composition for restructuring the polymer chain of a waste and/or post-consumer polymer of the present invention, because its steps, operating conditions , components, percentages are different, as well as their functionality, that is, in this document it does not describe or suggest an improved composition for the restructuring of the polymeric chain of a waste and/or post-consumer polymer, it comprises: a) Peroxide-based catalysts organics selected from the group consisting of 2,5-dimethyl-2,5-bis(tert-butyl-peroxy)hexane (DHBP), 2,5-dimethyl-2,5-bis(tert-butyl-peroxy)hexyne-3 (DYBP) , Dicumyl-peroxide (DCUP), di-tert-butyl-peroxide (DTBP), Terbutyl-cumii-peroxide
- an improved composition for the restructuring of the polymeric chain gives a waste and/or post-consumer polymer comprising: a) Catalysts based on organic peroxides selected from the group consisting of in 2,5-dimethyl ⁇ 2,5-bis(tert-butyl-peroxy)hexane (DHBP), 2,5-dimethyl--2,5-bis(tert-butyl-peroxy)hexyne--3 (DYBP), Dicumii-peroxide (DCUP).
- DHBP 2,5-dimethyl ⁇ 2,5-bis(tert-butyl-peroxy)hexane
- DYBP 2,5-dimethyl--2,5-bis(tert-butyl-peroxy)hexyne--3
- DCUP Dicumii-peroxide
- DTBP di-tert-butyl-peroxide
- BCUP Tert-butyl-cumyl-peroxide
- t-butylperoxy-isopropyl benzene, and combinations thereof;
- catalyst a) with respect to the catalyst b) varies from 1:89% by weight to 99; 1% by weight, and where component a) plus b) must add up to 100% by weight in the improved composition, therefore it does not affect the novelty or the inventive activity of the present invention.
- the present invention refers to an improved composition for the restructuring of the polymeric chain of a waste and/or post-consumer polymer based on the modification of the shear rate, a process for recycling a waste polymer and uses of the polymer. recycled in the food industry, in the waste plastic industry destined for disposal, or anywhere where improved stable recycled polymers are required.
- the objective of the present invention is to provide an improved composition for the restructuring of the polymeric chain of a waste and/or post-consumer polymer based on the modification of the shear rate, also to provide a process for recycling a waste polymer and /or post-consumer, and uses of the recycled polymer in the food industry, in the plastic waste industry destined for disposal, or anywhere where improved stable recycled polymers are required, and also to introduce polymers into the circular economy, plastic resins, etc., post consumption to highly specialized production chains.
- the inventors have surprisingly discovered that in order to provide improved recycled polymers, a restructuring of the polymer chain of the waste and/or post-consumer polymer is necessary based on the modification of the shear rate, this modification in the Shear rate in waste and/or post-consumer polymers is achieved through the combination (adjuvant) of free radical-forming catalysts in the appropriate proportions, such as organic peroxides and fatty acid derivatives at process temperatures below 280oC, where the polymerization is not carried out in a reactor, it is carried out in an extrusion and/or injection machine individually and/or in the form of a masterbatch, where the objective of the combination (helping) of free radical-forming catalysts is to control the shear rate of the polymer (with preference for polypropylene homopolymers, copolymers, and their blends, etc., but limited to these) by increasing its MFR2 (230oC/2.16 kg), and/or its process viscosity, and/or its processability to
- Polyolefins include the following products:
- PEBD Low density polyethylene
- LDPE Low density polyethylene
- High density polyethylene PEAD or HDPE. product of the polymerization of ethylene over a catalyst at moderate pressure.
- Linear low density polyethylene (LDPE or Li.DPE), similar to HDPE but introducing longer olefins as comonomers (especially 1-butene, 1-hexene, 1-octane).
- Polypropylene (PP), product of the catalytic polymerization of propylene is a polypropylene (PP), product of the catalytic polymerization of propylene.
- EPR Ethylene-propylene rubber
- Poly-alpha-olefins obtained from alpha-defines, linear hydrocarbons with a single double bond ortho of their ends, such as 1-hexene.
- Polyester is a category of polymers that contains the ester functional group in its main chain.
- EN term polyester generally refers to synthetic polyesters (plastics), from heavy oil fractions.
- the best known thermoplastic polyester is PET.
- ES PET is synthetically formed with ethylene glycol plus dimethyl terephthalate, producing the polymer or polytericholethane.
- Polyester resins thermosets are also used as a matrix for the construction of equipment, anti-corrosion pipes and the manufacture of paints.
- the waste and/or post-consumption policies are selected from polypropylene policies, certified in place of final disposal, from various sources, selected from beverage labels and caps, agricultural burlap, sack raffia, agricultural material (padding, net. shade mesh), blow bottle, etc., but not limited to these, with contamination content of polyesters less than 2% and other polyolefins up to 20%, with average MFR2 of 1 to 3 g/10 min (2.18kg/ 23(PC).
- Performance polymers are semi-crystalline copolymers with tuned amorphous content and are compatible with, but not limited to, other polyolefinic materials.
- the improved composition for restructuring the polymer chain of a waste and/or post-consumer polymer comprises: a) Catalysts based on organic peroxides; and b) Catalysts based on fatty acid derivatives.
- the improved composition for restructuring the polymer chain of a waste and/or post-consumer polymer comprises: a) Catalysts based on organic peroxides selected from the group consisting of 2.5 ⁇ dimethyl-2.5-bis(tert-butyl-peroxy)hexane (DHBP), 2.5-dimethyl-2,5-bis(tert-butyl-peroxy)hexyne-3 (DYBP), Dicumyl-peroxide (DCUP), dkerbuyl-psroxide (DTBP), Terbut ⁇ i-cum ⁇ -peroxide (8CUP), bis (tert-butylperoxy-isopropyl)benzene.
- DHBP dimethyl-2.5-bis(tert-butyl-peroxy)hexane
- DYBP 2.5-dimethyl-2,5-bis(tert-butyl-peroxy)hexyne-3
- DCUP Dicumyl-peroxide
- DTBP dkerbuyl-psroxide
- the improved composition for the restructuring of the pojimoric chain of a waste and/or post-consumer polymer comprises: a) Catalysts based on organic peroxides selected from the group consisting of 2.5 -dtmetii-2.5-bis(tertbutyl ⁇ peroxy)hexane (DHBP), 2,5- dimethyl-2,S-bis(tert-butyl-peroxy)hexyne ⁇ 3 (DYBP).
- DHBP 2.5 -dtmetii-2.5-bis(tertbutyl ⁇ peroxy)hexane
- DYBP 2,5- dimethyl-2,S-bis(tert-butyl-peroxy)hexyne ⁇ 3
- DCUP Dicurnyl-peroxide
- DTBP di-tert-butyl-peroxide
- BCUP Tert-butyl-cumyl-peroxide
- ratio of catalyst a) with respect to catalyst b) varies from 1:99% by weight to 99:1% by weight, and where component a) plus b) must add up to 100% by weight in the improved composition.
- the improved composition for restructuring the polymer chain of a waste and/or post-consumer polymer comprises; a) Catalysts based on organic peroxides selected from the group consisting of 2,5-dimethyl-2,5-bis(tert-butyl-peroxl)bexane (DHBP).
- DHBP 2,5-dimethyl-2,5-bis(tert-butyl-peroxl)bexane
- DYBP 2,5- dimethyl-2,5-bis(tert-butyl-peroxy)hexsno-3
- DCUP Dicumyl-peroxide
- DTBP di-tert-butyl-peroxide
- BCUP Tert-butyl-cumyl-peroxide
- ratio of catalyst a) with respect to catalyst b) varies from 15:85% by weight to 90:10% by weight, preferably from 10:90% by weight to 50:50 by weight and where the component a) plus b) must add up to 100% by weight in the improved composition.
- the waste polymers and/or Selected post-consumer products have a melt flow rate (MFR) ranging from 1 to 30 g/10 min (ASTM-D-1238-13, .2.16 KG, 230°C), with variable contamination ranges (eg 80% PP/20% PE) and various sources of origin.
- MFR melt flow rate
- the waste and/or post-consumer polyolefins are selected from polypropylene polyolefins, certified instead of final disposal, from various sources, selected from beverage labels and caps, agricultural burlap, sack raffia , agricultural material (padding, netting, shade mesh), blow bottle, etc., but not limited to these, with a contamination content of polyesters less than 2% and other polyolefins up to 20%, with an average MFR2 of 1 to 3g/10min (2.16kg/230°G);
- the process for recycling waste and/or post-consumer polymers comprises the following steps: i) Selecting waste and/or post-consumer polymers from the group consisting of polyolefins, polyesters, homopolymers and copolymers of these, and combinations thereof; ii) selecting an improved composition for the restructuring of the polymeric chain of a waste and/or post-consumer polymer, wherein the composition comprises: a) Organic peroxide Dase catalysts; and b ⁇ Catalysts based on fatty acid derivatives, where the ratio of catalyst a) with respect to catalyst b) varies from 1:99% by weight to 99:1% by weight, and where component a) plus b) must add up to 100% by weight in the improved composition; iii) Placing and/or selected polymers and the improved composition in an extrusion and/or injection machine individually and/or in the form of a masterbatch, where the ratio of the improved composition with respect to the polymer varies
- the process for recycling waste and/or post-consumer polymers comprises the following steps; i) Select waste and/or post-consumer polymers from the group consisting of polyolefins, polyesters, homopolymers and copolymers thereof, and combinations thereof, where the selected waste and/or post-consumer polymers have an Index melt flow rate (MFR) ranging from 1 to 30 g/10 min (ASTM-D-1238-13.
- MFR Index melt flow rate
- compositions for the restructuring of the polymeric chain of a waste and/or post-consumption polymer, wherein the composition comprises: a) Catalysts based on organic peroxides; and b) Catalysts based on derivatives of fatty acids, where the ratio of catalyst a) with respect to!
- catalyst b) ranges from 1:99% by weight to 99:1% by weight, and where component a) plus b) must add up to 100% by weight in the improved composition; iii) Place the selected polymers and the improved composition in an extrusion and/or injection machine individually and/or in the form of a masterbatch, where the ratio of the improved composition with respect to the polymer varies from 1%:99% in weight to 99%: 1% by weight, preferably from 10%:90% to 50%:50% by weight; iv) heating to an extrusion and/or injection temperature to below 280°C, preferably from 155°C to 260°C, and more preferably from 210°C to 240°C; and v) obtaining the recycled polymer, where the recycled polymer obtained has the following values:
- the process for recycling waste and/or post-consumer polymers comprises the following steps; i) Select waste and/or post-consumer polymers from the group consisting of polypropylene polydefines, certified in place of final disposal, from various sources, selected from beverage labels and caps, agricultural burlap, sack raffia, agricultural material (padding, netting, shade mesh), blow bottle, etc., but not limited to these, with polyester contamination content less than!
- compositions for the restructuring of the polymeric chain of a waste polymer and / or post consumption, where the composition comprises; a) Catalysts based on organic peroxides; and b) Catalysts based on fatty acid derivatives, where the ratio of catalyst a) with respect to catalyst b) varies from
- the extrusion and/or injection machines are selected from twin-screw extruders with a gravimetric dosing system and a gas venting system, extruders with a mixer-type component Batch-type Banbury with single-screw feeding and gravimetric dosing, kneader-type twin-screw extruders with gas venting system and gravimetric dosing, etc.
- the atol group esters are terminal radicals and can be selected from, but only limited to, Irgatec CR 76 of BASF and GIBA, etc.
- An improved composition for the restructuring of the polymeric chain of a waste and/or post-consumer polymer of the present invention is manufactured in the following manner: Select the catalysts based on organic peroxides (a) selected from the group consisting of 2,5-dimethyl-2,5-bis(tert-butyl-peroxy)hexane (DHBP), 2,5-dimethyl ⁇ 2,5- bis(tert-butyl-peroxy)hexyne-3 (DYBF), Dicumyl-peroxide (DCUP), di -tert-butyl-peroxide (DTBP), Tert-butyl-cumyl-peroxide (BCUP), bis(tert-butylperoxy-isopropyl)benzene, and combinations thereof;
- organic peroxides a selected from the group consisting of 2,5-dimethyl-2,5-bis(tert-butyl-peroxy)hexane (DHBP), 2,5-dimethyl ⁇ 2,5- bis(tert-but
- - Select the catalysts based on derivatives of fatty acids (b) selected from the group consisting of acyl group esters such as daily carbocyclic monoaryl carbocyclic, derivatives of sterically hindered amines with alkyl groups, and combinations thereof; - Mix catalysts a) and b) in a container and/or a mixer until completely homogenized, where the ratio of catalyst a) with respect to catalyst b) is from 1:99% by weight to 99:1% by weight , and where component a) plus b) must add 100% by weight in the improved composition, and
- Waste and/or post-consumer polymers with an improved composition for the restructuring of the polymer chain of the present invention are collected as follows: i) Select waste and/or post-consumer polymers from the group consisting of polyolefins , polyesters, homopolymers and copolymers of these, and combinations thereof; ii) selecting an improved composition for the restructuring of the polymeric chain of a waste and/or post-consumer polymer, wherein the composition comprises: a) Organic Peroxide Pass Catalysts; and b) Catalysts based on fatty acid derivatives, where the ratio of catalyst a) with respect to catalyst b) varies from 1:99% by weight to 99:1% by weight, and where component a) plus b) must add up to 100% by weight in the improved composition; iii) Place the selected polymers and the improved composition in an extrusion and/or injection machine individually and/or in the form of masterbatch, where the ratio of the improved composition with respect to the polymer varies
- the selected waste and/or post-consumer polymers have a Melt Flow Index (MFR) ranging from 1 to 30 g/10 min (ASTM-D-1238-13, 2.18 KG, 230o0), with variable contamination ranges (eg 80% PP/20% PE) and diverse sources of origin.
- MFR Melt Flow Index
- waste and/or post-consumer polyolefins are selected from polypropylene polyolefins, certified in place of final disposal, from various sources, selected from beverage labels and caps, agricultural burlap, sack raffia, agricultural material (padding, net, shade mesh), blow bottle, etc., but not limited to these, with a contamination content of polyesters less than 2% and other polyolefins up to 20%, with average MFR2 from 1 to 3 g/10 min (2.16kg/230°C);
- Waste and/or post-consumer polymers are recycled with the improved composition for the restructuring of the polymeric chain of the present invention as follows: - Select waste and/or post-consumer polyolefins (polypropylene), certified instead of final disposal, from "various sources, such as beverage labels and covers, agricultural burlap, sack raffia, agricultural material (padding, netting, shade mesh), puff bottles, etc., but not limited to these, with content of polyester contamination less than 2% and other polyolefins up to 20%, with average MFR2 of 1 to 3 g/10 min (2.16kg/230°C);
- twin-screw extruders with a gravimetric dosing system and gas venting system are used, extruders with Banbury-type batch mixers with single-screw feeding and dosing.
- gravimetric, "kneader” type twin screw extruders with gas venting system and gravimetric dosing are used,
- the improved composition for the restructuring of the polymeric chain of example 1 must be dosed, to modify the shear rate of the polymer to be treated (polyolefins of polypropylene), with established ranges of 1 wt% of the improved composition ( i):99w ⁇ % of waste and/or post-consumer resin (ii) up to 99wt%( ⁇ ): 1 wt%(ii), preferably in a range of 10wt%(i):90wt%(ii) up to 50wt% (i): 50wt(il).
- a nonwoven fabric is manufactured from virgin polypropylene in a proportion of between 75% and 1% and with the recycled polymer of example 2 and/or 3 in a proportion of between 25% and 99% by means of a melt blown and/or spunbond process as follows:
- Figure 1 represents capillary rheometry values of a nonwoven fabric with virgin polypropylene in a proportion of between 75% and 1% and with the recycled polymer of example 2 and/or 3 in a proportion of between 25% and 99% by means of a mefi biown and/or spunbond process from example 4.
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Abstract
The present invention relates to an improved composition for restructuring the polymer chain of a waste and/or post-consumption polymer based on the modification of the shear rate, a process for recycling a waste polymer, and uses of the recycled polymer in the food industry, in the industry involving plastic waste intended for disposal, or anywhere requiring improved stable recycled polymers. The aim of the present invention is to provide an improved composition for restructuring the polymer chain of a waste and/or post-consumption polymer based on the modification of the shear rate. It also aims to provide a process for recycling a waste and/or post-consumption polymer, and uses of the recycled polymer in the food industry, in the industry involving plastic waste intended for disposal, or any other site where improved stable recycled polymers are required, in addition to introducing post-consumption polymers, plastic resins, etc. into highly specialised production chains in the circular economy.
Description
UNA COMPOSIÍCIÓN MEJORADA PARA LA REESTRUCTURACIÓN DE LA CADENA POLIMERICA DE UN POLÍMERO DE DESECHO Y/O DE POS CONSUMO EN BASE A LA MODÍFiCACiÓN DE LA VELOCIDAD DE CORTE, UN PROCESO PARA RECICLAR UN POLÍMERO DE DESECHO Y/O DE POS CONSUMO, Y USOS DEL POLÍMERO RECICLADO AN IMPROVED COMPOSITION FOR THE RESTRUCTURING OF THE POLYMER CHAIN OF A WASTE AND/OR POST-CONSUMER POLYMER BASED ON THE MODIFICATION OF THE CUTTING SPEED, A PROCESS TO RECYCLE A WASTE AND/OR POST-CONSUMER POLYMER, AND USES OF THE RECYCLED POLYMER
CAMPO DE LA INVENCIÓN FIELD OF THE INVENTION
La presente invención se refiere a una composición mejorada para ia reestructuración de ia cadena polímérica de un polímero de desecho y/o pos consumo en base a ia modificación de ia velocidad de corte, un proceso para reciclar un polímero de desecho y usos del polímero reciclado en ia industria alimenticia, en la industria de los residuos plásticos destinados al desecho, o cualquier lugar donde se requieren polímeros reciclados estables mejorados. The present invention relates to an improved composition for the restructuring of the polymer chain of a waste and/or post-consumer polymer based on the modification of the shear rate, a process for recycling a waste polymer and uses of the recycled polymer. in the food industry, in the waste plastics industry destined for disposal, or anywhere where improved stable recycled polymers are required.
Ei objetivo de la presente invención es proporcionar una composición mejorada para la reestructuración de la cadena polímérica de un polímero de desecho y/o pos consumo en base a la modificación de la velocidad de corte, proporcionar también un proceso para reciclar un polímero de desecho y/o pos consumo, y usos del polímero reciclado en ia industria alimenticia, en la Industria de los residuos plásticos destinados al desecho, o cualquier lugar donde se requieren polímeros reciclados estables mejorados, y además para introducir en la economía circular a ios polímeros, las resinas pláticas, etc., pos consumo a cadenas de producción de alta especialidad. The objective of the present invention is to provide an improved composition for the restructuring of the polymeric chain of a waste and/or post-consumer polymer based on the modification of the shear rate, also to provide a process for recycling a waste polymer and /or post-consumption, and uses of the recycled polymer in the food industry, in the Industry of plastic waste destined for disposal, or anywhere where improved stable recycled polymers are required, and also to introduce polymers into the circular economy, plastic resins, etc., post-consumption to highly specialized production chains.
ANTECEDENTES DE LA INVENCIÓN BACKGROUND OF THE INVENTION
En la actualidad existen necesidades del ser humano que han aumentado considerablemente y con ello también ha aumentado ia cantidad de los residuos plásticos que utilizan y desechan, la industria día a día se adapta para poder cubrir las necesidades de los
consumidores, la Industria más atacada y que ha sido orillada a cambiar cada uno de ios sus productos es la industria alimenticia, en donde utiliza el plástico para empaque y embalaje. At present there are needs of the human being that have increased considerably and with it the amount of plastic waste that they use and discard has also increased, the industry adapts day by day to be able to cover the needs of the consumers, the most attacked Industry and that has been forced to change each of its products is the food industry, where it uses plastic for packaging and packaging.
La organización de las naciones unidas realizó un estudio en el que determino que en todo el mundo se producen 400 millones de toneladas las cuates el 50 % de estos productos que se producen se destinan para empaque y embalaje, debido a esta situación se han generado alrededor del mundo se han impuesto sanciones e inclusive prohibiciones por parte del gobierno hacia la Industria del plástico, esto debido a que la ONU realizo una predicción la cual dice que si el consumo del plástico continua de esta forma para el 2050 existirá 12.000 millones de toneladas alrededor del mundo, lo que es una grave problemática de contaminación. The organization of the United Nations carried out a study in which it determined that 400 million tons are produced worldwide, of which 50% of these products that are produced are destined for packing and packaging, due to this situation they have generated around of the world sanctions and even prohibitions have been imposed by the government towards the Plastic Industry, this is because the UN made a prediction which says that if the consumption of plastic continues in this way by 2050 there will be 12,000 million tons around of the world, which is a serious pollution problem.
Debido a esta situación se generó un compromiso global el cual se encuentra encabezado por la fundación Ellen MacActhur la cual fue fundada en el 2010 con el objetivo de acelerar la economía circular, en conjunto con el Global Comienment establecieron que para ei 2025 las empresas deberán de usar en sus productos plásticos un 25% de material reciclado y para ei 2050 el 50%. Due to this situation, a global commitment was generated, which is headed by the Ellen MacActhur Foundation, which was founded in 2010 with the aim of accelerating the circular economy, together with the Global Start, they established that by 2025 companies must use 25% recycled material in its plastic products and 50% by 2050.
El enfoque de la economía circular dicta que la vida de un producto de un único uso debe volverse integrar a ser un mismo producto o un producto diferente es por eiio que el enfoque es más dependiente de las propiedades del plástico físicas y mecánicas del plástico esto debido a que podría ser más costosa incluir un producto reciclado que un producto virgen, como se sabe ai integrar el polímero a un proceso este pierde en cierta proporción alguna de sus propiedades, pero al estar en contacto con el medio ambiente por un tiempo prolongado las cadenas poliméricas empiezan sufrir un deterioro, lo que también en una grave problemática para ios fabricantes y consumidores finales. The circular economy approach dictates that the life of a single-use product must be integrated back to being the same product or a different product, which is why the approach is more dependent on the physical and mechanical properties of the plastic. to the fact that it could be more expensive to include a recycled product than a virgin product, as is known when integrating the polymer into a process it loses some of its properties to a certain extent, but when in contact with the environment for a long time the chains polymers begin to suffer deterioration, which is also a serious problem for manufacturers and end consumers.
Mucha de las empresas de reciclado hacen únicamente reciclado de ios productos pero no ofrecen una solución ios dientes por lo que el costo de integrar una resina reciclada se vuelve aún más amplia pero sí se pudiera modificar desde el proceso secundario esto podría contener grandes beneficios en todas las industrias no solo permitiendo integrar un
25 % de material reciclado en sus productos si no que podría realizar un producto con el 100 % de producto reciclado con las mismas propiedades e inclusive mejores propiedades Que su resina virgen. Many of the recycling companies only recycle the products but do not offer a specific solution, so the cost of integrating a recycled resin becomes even higher, but if it could be modified from the secondary process, this could have great benefits in all industries not only allowing to integrate a 25% recycled material in its products, otherwise it could make a product with 100% recycled product with the same properties and even better properties than its virgin resin.
La presente invención resuelve toda esta grave problemática, al proporcionar una composición mejorada y un proceso de reciclado de polímeros de desecho y/o pos consumo basado en la modificación de la velocidad de corte del polímero mediante la formación de radicales libres, donde se realiza la disminución del peso molecular (degradación) o el incremento del mismo (cross linking). The present invention solves all this serious problem by providing an improved composition and a recycling process for waste and/or post-consumer polymers based on modifying the shear rate of the polymer through the formation of free radicals, where the decrease in molecular weight (degradation) or its increase (cross linking).
La degradación controlada de las polioiefinas susceptibles a este proceso (e). Polipropileno) lleva al producto a un bajo peso molecular y una distribución más estrecha de la velocidad de corte en proceso, coincidente con la poliolefina de "grado reactor” al cual está destinado el producto. Controlled degradation of polyolefins susceptible to this process (e). Polypropylene) leads the product to a low molecular weight and narrower in-process shear rate distribution, consistent with the “reactor grade” polyolefin for which the product is intended.
Dicho “control reoiógico" de los polímeros puede lograrse a través de manejo de temperatura, en particular con temperaturas de proceso mayores a 280°C, o en presencia de una combinación de catalizadores generadores de radicales libres durante el proceso de inyección o extrusión. Said "rheological control" of the polymers can be achieved through temperature management, in particular with process temperatures higher than 280°C, or in the presence of a combination of free radical generating catalysts during the injection or extrusion process.
Generalmente esta combinación de catalizadores se presentan en forma de peróxidos orgánicos, los cuales en presencia del polímero a tratar (ej. Polioíeflnas, pollestirenos, etc.,) y las temperaturas de proceso adecuadas, se desintegran en radicales libres que inician la reacción de corte o entre cruzamiento para obtener las propiedades reológicas y Ea velocidad de corte final del polímero a tratar. Generally, this combination of catalysts is in the form of organic peroxides, which, in the presence of the polymer to be treated (eg, polyolefins, polystyrenes, etc.,) and the appropriate process temperatures, disintegrate into free radicals that initiate the cutting reaction. or between crossing to obtain the rheological properties and Ea final shear rate of the polymer to be treated.
El documento Pa/a/1995/02973 describe un proceso para reciclar un material de desperdicio de polímero mezclado de componentes múltiples involucra los pasos de aglomerar el material de desperdicio de polímero mezclado de componentes múltiples e hilar el aglomerado para formar un hilo, en donde el material de desperdicio de polímero mezclado de componentes múltiples contiene una mezcla de por lo menos dos polímeros incompatibles. Sin embargo, este proceso es diferente al proceso y composición mejorada para ía
reestructuración de la cadena polímérica de un polímero de desecho y/o pos consumo de ia presente invención, porque sus pasos, condiciones operativas, componentes, porcentajes son diferentes, así como su funcionalidad, es decir en este documento no describe ni sugiere una composición mejorada para la reestructuración de ia cadena poliméríca de un polímero de desecho y/o pos consumo comprende: a) Catalizadores a base de peróxidos orgánicos seleccionados del grupo que consiste en 2,S"dimetil-2,5-bis(terbutil-peroxi)hexano (DHBP), 2,5-dimetil-2,S-bis(terbutil-peróxi)hexino-3 (DYBP), Dicumii-peroxido (DCUP), di-terbutii- peróxido (DTBP). TerbutiLcumil-peróxitío (BCUP), bis (terbuííipsroxHsoprapiljbenceno, y combinaciones de ios mismos; b) Catalizadores a base de derivados de ácidos grasos seleccionados del grupo que consiste en esteros de grupo acil como monoaril carbociclico diario carbocicíico, derivados de aminas estancamente impedidas con grupos alquilo, y combinaciones de ios mismos, en donde la relación del catalizador a) con respeto del catalizador b) varia de 1 :99% en peso hasta 99:1% en peso, y en donde el componente a) más el b) deben sumar el 100% en peso en la composición mejorada, por lo tanto no afecta ia novedad ni ia actividad inventiva de la presente Invención. Pa/a/1995/02973 describes a process for recycling a multicomponent blended polymer waste material involving the steps of agglomerating the multicomponent blended polymer waste material and spinning the agglomerate to form a yarn, wherein the multi-component mixed polymer waste material contains a mixture of at least two incompatible polymers. However, this process is different from the process and improved composition for the restructuring of the polymer chain of a waste and/or post-consumption polymer of the present invention, because its steps, operating conditions, components, percentages are different, as well as its functionality, that is, in this document it does not describe or suggest an improved composition for the restructuring of the polymeric chain of a waste and/or post-consumer polymer comprises: a) Catalysts based on organic peroxides selected from the group consisting of 2,S"dimethyl-2,5-bis(tert-butyl-peroxy)hexane (DHBP), 2,5-dimethyl-2,S-bis(tert-butylperoxy)hexyne-3 (DYBP), Dicumii-peroxide (DCUP), di-tertbutyperoxide (DTBP), TerbutyLcumyl-peroxythium (BCUP), bis (terbuííipsroxHsoprapiljbenzene, and combinations thereof; b) Catalysts based on derivatives of fatty acids selected from the group consisting of esters of acyl group such as monoaryl carbocyclic daily carbocyclic, derivatives of amines tightly hindered with alkyl groups, and combinations thereof , where the ratio of catalyst a) with respect to catalyst b) varies from 1:99% by weight to 99:1% by weight, and where component a) plus b) must add up to 100% by weight in the improved composition, therefore it does not affect the novelty or the inventive activity of the present invention.
El documento US 20180029027 Al describe un catalizador para reciclar un plástico elegido entre polietileno, polipropileno, poliestireno y combinaciones de los mismos, incluye un soporte poroso que tiene una superficie exterior y ai menos un poro en la misma, un componente de catalizador de des polimerización que comprende un catalizador de metaloceno dispuesto sobre ia superficie exterior del soporte poroso, y un componente de catalizador reductor dispuesto en al menos un poro. La superficie exterior del soporte poroso comprende menos de 10 partes en peso del componente de catalizador reductor basado en 100 partes en peso del componente de catalizador de daspoílmerización según se determina usando espectroscopia de rayos X de dispersión de energía (EOS). Además, eí componente de catalizador reductor comprende un metal de transición seleccionado deí grupo de hierro, níquel, paladio, platino y combinaciones de los mismos. Eí ai menos un poro del soporte poroso tiene un tamaño medio ds poro de 10 Angstroms. Sin embargo, este catalizador para reciclar un
plástico es diferente a la composición mejorada para la reestructuración de la cadena polimérica de un polímero de desecho y/o pos consumo de la presente invención, porque sus pasos, condiciones operativas, componentes, porcentajes son diferentes, así como su funcionalidad, es decir en este documento no describe ni sugiere una composición mejorada para ia reestructuración de la cadena polímérica de un polímero de desecho y/o pos consumo comprende: a) Catalizadores a base de peróxidos orgánicos seleccionados de! grupo que consiste en 2,5-tíimetii-2,5-bis(terbutil-peroxi)hexano (DHSP), 2,S-dimet¾-2,5-bis(terbutii- peroxí)hextno-3 (DYBP), Dicumii-peroxido (DCUP), di-terbutil-peróxido (DTBP), Tarbutil-cumil- peróxido (BCliP), bis (terbutilperoxwsopropiijbenceno, y combinaciones de ios mismos; b) Catalizadores a base de derivados de ácidos grasos seleccionados de! grupo que consiste en esteres de grupo adi como monoarii carbocielico diario carbociciíco, derivados de aminas estéricamente impedidas con grupos alquilo, y combinaciones de ios mismos, en donde la relación deí catalizador a) con respeto del catalizador b) varia de 1 :99% en peso hasta 99:1% en peso, y en donde el componente a) más el b} deben sumar el 100% en peso en la composición mejorada, por lo tanto no afecta ia novedad ni ia actividad inventiva de ia presente invención. Document US 20180029027 Al describes a catalyst for recycling a plastic chosen from polyethylene, polypropylene, polystyrene and combinations thereof, includes a porous support having an outer surface and at least one pore therein, a depolymerization catalyst component comprising a metallocene catalyst arranged on the outer surface of the porous support, and a reducing catalyst component arranged in at least one pore. The outer surface of the porous support comprises less than 10 parts by weight of the reducing catalyst component based on 100 parts by weight of the daspolymerization catalyst component as determined using energy dispersive X-ray spectroscopy (EOS). In addition, the reducing catalyst component comprises a transition metal selected from the group of iron, nickel, palladium, platinum, and combinations thereof. At least one pore of the porous support has a mean pore size of 10 Angstroms. However, this catalyst to recycle a plastic is different from the improved composition for the restructuring of the polymeric chain of a waste and/or post-consumer polymer of the present invention, because its steps, operating conditions, components, percentages are different, as well as its functionality, that is, in This document does not describe or suggest an improved composition for restructuring the polymer chain of a waste and/or post-consumer polymer, comprising: a) Catalysts based on organic peroxides selected from! group consisting of 2,5-dimethii-2,5-bis(tert-butyl-peroxy)hexane (DHSP), 2,S-dimet¾-2,5-bis(tert-butyl-peroxy)hexane-3 (DYBP), Dicumii- peroxide (DCUP), di-tert-butyl-peroxide (DTBP), Tarbutyl-cumyl-peroxide (BCliP), bis (tert-butylperoxwsopropiijbenzene, and combinations thereof; b) Catalysts based on derivatives of fatty acids selected from! group consisting of esters of adi group such as carbocylic daily carbocylic monoarii, derivatives of sterically hindered amines with alkyl groups, and combinations thereof, where the ratio of catalyst a) with respect to catalyst b) varies from 1:99% in weight up to 99:1% by weight, and where component a) plus b) must add up to 100% by weight in the improved composition, therefore it does not affect the novelty or the inventive activity of the present invention.
El documento US 20100311849 Al describe un proceso para preparar un extensor de cadena de copolímero de bloque reactivo y para usar el extensor de cadena para acopiar cadenas de polímero ¡untas para aumentar el peso molecular medio de las cadenas de polímero. El extensor de cadena se puede hacer reaccionar con materiales poiiméricos que tienen grupos funcionales y bajo peso molecular para acoplar cadenas polimérícas y aumentar el peso molecular medio, aumentando asi la viscosidad intrínseca y mejorando las propiedades- del material poiimérico, El extensor de cadena es particularmente útil para reciclar tereftalato de polietileno (PET) y otros polímeros con grupos funcionales y también es útil como modificador de superficie y como compatíbilizador para materiales poiiméricos que no tienen grupos funcionales reactivos, tales como poliefileno, polipropileno y poiiostireno. Sin embargo, este extensor de cadena de copolímero de bloque reactivo y pare usar el extensor de cadena para
acopiar cadenas de polímero juntas para aumentar el peso molecular medio de las cadenas de polímero es diferente a la composición mejorada para la reestructuración de la cadena polimérica de un polímero de desecho y/o pos consumo de la presente invención, porque sus pasos, condiciones operativas, componentes, porcentajes son diferentes, asi como su funcionalidad, es decir en este documento no describe ni sugiere una composición mejorada para la reestructuración de la cadena polimérica de un polímero de desecho y/o pos consumo comprende: a) Catalizadores a base de peróxidos orgánicos seleccionados del grupo que consiste en 2,5-dimetil-2,5-bís(terbutil-peroxi)hexano (DHBP), 2,5-dimetil~ 2,5-bis(terbutil· peroxi)hexino~3 (DYBP), Dicumil-peroxído (DCUP), di-terbutií-peróxido (DTBP), Terbutii-cumii- peróxido (BCUF), bis (terbutilperoxi-isopropil)benceno. y combinaciones de los mismos; b) Catalizadores a base de derivados de ácidos grasos seleccionados del grupo que consiste en esteres de grupo acil como rnonaaril carbociciíco diario carbociclico, derivados de aminas estéricamente impedidas con grupos alquilo, y combinaciones de los mismos, en donde la relación del catalizador a) con respeto del catalizador b) varia de 1 :99% en peso hasta 99:1% en peso, y en donde el componente a) más el b) deben sumar el 100% en peso en la composición mejorada, por lo tanto no afecta la novedad ni la actividad inventiva de la presente invención, US 20100311849 Al discloses a process for preparing a reactive block copolymer chain extender and for using the chain extender to pull polymer chains together to increase the average molecular weight of the polymer chains. The chain extender can be reacted with polymeric materials having functional groups and low molecular weight to couple polymer chains and increase the average molecular weight, thus increasing the intrinsic viscosity and improving the properties of the polymeric material. The chain extender is particularly useful for recycling polyethylene terephthalate (PET) and other polymers with functional groups and is also useful as a surface modifier and compatibilizer for polymeric materials that do not have reactive functional groups, such as polyethylene, polypropylene, and polystyrene. However, this reactive block copolymer chain extender and stop using the chain extender for stacking polymer chains together to increase the average molecular weight of the polymer chains is different from the improved composition for restructuring the polymer chain of a waste and/or post-consumer polymer of the present invention, because its steps, operating conditions , components, percentages are different, as well as their functionality, that is, in this document it does not describe or suggest an improved composition for the restructuring of the polymeric chain of a waste and/or post-consumer polymer, it comprises: a) Peroxide-based catalysts organics selected from the group consisting of 2,5-dimethyl-2,5-bis(tert-butyl-peroxy)hexane (DHBP), 2,5-dimethyl-2,5-bis(tert-butyl-peroxy)hexyne-3 (DYBP) , Dicumyl-peroxide (DCUP), di-tert-butyl-peroxide (DTBP), Terbutyl-cumii-peroxide (BCUF), bis (tert-butylperoxy-isopropyl)benzene. and combinations thereof; b) Catalysts based on derivatives of fatty acids selected from the group consisting of acyl group esters such as monoaryl carbocyclic daily carbocyclic, derivatives of sterically hindered amines with alkyl groups, and combinations thereof, where the ratio of catalyst a) with respect to catalyst b) varies from 1:99% by weight to 99:1% by weight, and where component a) plus b) must add up to 100% by weight in the improved composition, therefore it does not affect the novelty or inventive step of the present invention,
Ninguno de los documentos antes mencionados describe o sugiere de manera explícita o Implícita, una composición mejorada para ía reestructuración de la cadena polimérica da un polímero de desecho y/o pos consumo comprende: a) Catalizadores a base de peróxidos orgánicos seleccionados del grupo que consiste en 2,5-dimetil~ 2,5-bis(terbutil- peroxi) hexano (DHBP), 2,5-dimetil--2,5-bis(terbutil-peroxi)hexino--3 (DYBP), Dicumii-peroxido (DCUP). di-terbutíi-peróxido (DTBP), Terbutil-cumil-peróxído (BCUP), bis (terbutilperoxi- isopropil)benceno, y combinaciones de ios mismos; b) Catalizadores a base de derivados de ácidos grasos seleccionados del grupo que consiste en esteres de grupo acil como monoaril carbociciíco diario carbociclico, derivados de aminas estéticamente impedidas con grupos alquilo, y combinaciones de ios mismos, en donde la relación de! catalizador a) con respeto del
catalizador b) varia de 1:89% en peso hasta 99; 1% en pesa, y en donde el componente a) más el b) deben sumar el 100% en peso en la composición mejorada, por lo tanto no afecta ia novedad ni la actividad inventiva de la presente invención. DESCRIPCIÓN DE LA INVENCIÓN None of the aforementioned documents explicitly or implicitly describes or suggests, an improved composition for the restructuring of the polymeric chain gives a waste and/or post-consumer polymer comprising: a) Catalysts based on organic peroxides selected from the group consisting of in 2,5-dimethyl~ 2,5-bis(tert-butyl-peroxy)hexane (DHBP), 2,5-dimethyl--2,5-bis(tert-butyl-peroxy)hexyne--3 (DYBP), Dicumii-peroxide (DCUP). di-tert-butyl-peroxide (DTBP), Tert-butyl-cumyl-peroxide (BCUP), bis(tert-butylperoxy-isopropyl)benzene, and combinations thereof; b) Catalysts based on derivatives of fatty acids selected from the group consisting of acyl group esters such as monoaryl carbocyclic daily carbocyclic, derivatives of aesthetically hindered amines with alkyl groups, and combinations thereof, where the ratio of! catalyst a) with respect to the catalyst b) varies from 1:89% by weight to 99; 1% by weight, and where component a) plus b) must add up to 100% by weight in the improved composition, therefore it does not affect the novelty or the inventive activity of the present invention. DESCRIPTION OF THE INVENTION
La presente invención se refiere a una composición mejorada para ia reestructuración de la cadena poiimérica de un polímero de desecho y/o pos consumo en base a !a modificación de ia velocidad de corte, un proceso para reciclar un polímero de deseche y usos del polímero reciclado en ia industria alimenticia, en la Industria de ios residuos plásticos destinados al desecho, o cualquier lugar donde se requieren polímeros reciclados estables mejorados. The present invention refers to an improved composition for the restructuring of the polymeric chain of a waste and/or post-consumer polymer based on the modification of the shear rate, a process for recycling a waste polymer and uses of the polymer. recycled in the food industry, in the waste plastic industry destined for disposal, or anywhere where improved stable recycled polymers are required.
El objetivo de la presente invención es proporcionar une composición mejorada para ia reestructuración de la cadena poiimérica de un polímero ds desecho y/o pos consumo en base a la modificación de la velocidad de corte, proporcionar también un proceso para reciclar un polímero de desecho y/o pos consumo, y usos del polímero reciclado en la industria alimenticia, en la industria de ios residuos plásticos destinados al desecho, o cualquier lugar donde se requieren polímeros reciclados estables mejorados, y además para introducir en la economía circular a los polímeros, las resinas pláticas, etc , pos consumo a cadenas de producción de alta especialidad. The objective of the present invention is to provide an improved composition for the restructuring of the polymeric chain of a waste and/or post-consumer polymer based on the modification of the shear rate, also to provide a process for recycling a waste polymer and /or post-consumer, and uses of the recycled polymer in the food industry, in the plastic waste industry destined for disposal, or anywhere where improved stable recycled polymers are required, and also to introduce polymers into the circular economy, plastic resins, etc., post consumption to highly specialized production chains.
Sin apegarse a la teoría, los inventores han descubierto sorprendentemente que para proporcionar polímeros reciclados mejorados, es necesaria una reestructuración de ia cadena poiimérica del polímero de desecho y/o pos consumo en base a la modificación de ía velocidad de corte, esta modificación en la velocidad de corte en los polímeros de desecho y/o pos consumo se logra mediante la combinación (coadyuvancia) de catalizadores formadores radicales libres en las proporciones apropiadas, tales como ios peróxidos orgánicos y los derivados de ácidos grasos a temperaturas de proceso menores a 280ºC, en donde la
polimerización no se realiza en un reactor, se realiza en una máquina de extrusión y/o de inyección de forma individual y/o en forma de masterbatch, en donde el objetivo de la combinación (coadyuvando) de catalizadores formadores radicales libres es el control de la velocidad de corte del polímero (ríe preferencia de los homopolímeros, copolímeros de polipropileno, y su mezclas, etc., pero limitados a estos) incrementando su MFR2 (230ºC/2.16 kg), y/o su viscosidad de proceso, y/o su procesabííidad para obtener materiales de alta especialidad tales como ía fabricación de tela no tejida tipo meit blown, spunbond y fibra poliméríca, en aplicaciones tales como, medios de filtración, pañales, toallas desechadles, toallas femeninas, productos aplicados a la incontinencia urinaria o fecal en adultos, equipos de protección personal, telas quirúrgicas y desechables hospitalarios, telas automotrices y aeronáuticas, en donde se logra incrementar su contenido desde un 25% hasta el 100% de material reciclado del polímero de desecho y/o pos consumo, y por ello consideran que es una técnica de bajo costo para mejorar y aumentar la velocidad del proceso para proporcionar polímeros reciclados mejorados. Los polímeros de desecho y/o pos consumo se seleccionan de polímeros que incluyen polioleflnas, poliésteres, homopolímeros y copolímeros de estos, etc., y combinaciones de ios mismos. Without being bound by theory, the inventors have surprisingly discovered that in order to provide improved recycled polymers, a restructuring of the polymer chain of the waste and/or post-consumer polymer is necessary based on the modification of the shear rate, this modification in the Shear rate in waste and/or post-consumer polymers is achieved through the combination (adjuvant) of free radical-forming catalysts in the appropriate proportions, such as organic peroxides and fatty acid derivatives at process temperatures below 280ºC, where the polymerization is not carried out in a reactor, it is carried out in an extrusion and/or injection machine individually and/or in the form of a masterbatch, where the objective of the combination (helping) of free radical-forming catalysts is to control the shear rate of the polymer (with preference for polypropylene homopolymers, copolymers, and their blends, etc., but limited to these) by increasing its MFR2 (230ºC/2.16 kg), and/or its process viscosity, and/or its processability to obtain highly specialized materials such as the manufacture of non-woven fabric type meit blown, spunbond and polymeric fiber, in applications such as filtration media, diapers, disposable towels, feminine towels, products applied to urinary or fecal incontinence in adults, personal protection equipment, surgical and hospital disposable fabrics, automotive and aeronautical fabrics, where its content is increased from 25% to 100% of material recycling of waste and/or post-consumer polymer, and therefore they consider it to be a low-cost technique to improve and increase the speed of the process to provide improved recycled polymers. The waste and/or post-consumer polymers are selected from polymers including polyolefins, polyesters, homopolymers and copolymers of these, etc., and combinations thereof.
Entre las polioleflnas se incluyen, ios siguientes productos: Polyolefins include the following products:
Polietileno de baja densidad (PEBD o LDPE), formado a partir de elileno a muy alta presión, Low density polyethylene (PEBD or LDPE), formed from elylene at very high pressure,
Polietileno de alta densidad (PEAD o HDPE). producto de la polimerización del etileno sobre un catalizador a presión moderada. High density polyethylene (PEAD or HDPE). product of the polymerization of ethylene over a catalyst at moderate pressure.
Polietileno lineal de baja densidad (PELBD o Li.DPE), similar al HDPE pero introduciendo como comonómeros olefinas más largas (especialmente 1-buteno, 1-hexeno, 1- octano). Linear low density polyethylene (LDPE or Li.DPE), similar to HDPE but introducing longer olefins as comonomers (especially 1-butene, 1-hexene, 1-octane).
Polipropileno (PP), producto de ia polimerización catalítica del propileno. Polypropylene (PP), product of the catalytic polymerization of propylene.
Caucho etileno-propileno (EPR), copolímero catalítico de etileno y proplleno con
propiedades elasíoméricas. Ethylene-propylene rubber (EPR), catalytic copolymer of ethylene and propylene with elasiomeric properties.
Polí-alfa-olefinas, obtenidas a partir de alfa-definas, hidrocarburos lineales con un soío doble enlace en orto de sus extremos, como por ejemplo el 1-hexeno. Poly-alpha-olefins, obtained from alpha-defines, linear hydrocarbons with a single double bond ortho of their ends, such as 1-hexene.
Copo! ¡meros elásticos de etileno que suelen ser elastórmeros de poliolefina (ROE). Flake! elastic ethylene mers which are usually polyolefin elastomers (ROE).
El poiiésler es una categoría de polímeros que contiene el grupo funcional éster en su cadena principal. ES término poliéster generalmente se refiere a los poliesteres sintéticos (plásticos), provenientes de fracciones pesadas del petróleo. El poiiéster termopiástíco más conocido es el PET. ES PET está formado sintéticamente con etilenglicol más tereftaláto de dimetilo, produciendo el polímero o poltericoletano. Las resinas de poiiéster (termoestables) se usan también como matriz para la construcción de equipos, tuberías anticorrosivas y fabricación de pinturas. Polyester is a category of polymers that contains the ester functional group in its main chain. EN term polyester generally refers to synthetic polyesters (plastics), from heavy oil fractions. The best known thermoplastic polyester is PET. ES PET is synthetically formed with ethylene glycol plus dimethyl terephthalate, producing the polymer or polytericholethane. Polyester resins (thermosets) are also used as a matrix for the construction of equipment, anti-corrosion pipes and the manufacture of paints.
Las poiioieflnas de desecho y/o pos consumo se seleccionan de polioieflnas de polipropileno, certificadas en lugar de disposición final, de diversas fuentes, seleccionadas de etiqueta y taparrosca de bebidas, arpilla agrícola, rafia de saco, material de agricultura (acolchado, red. malla sombra), botella de soplo, etc., pero no limitadas a estas, con contenido de contaminación de poliésteres menor ai 2% y otras poiioieflnas hasta en 20%, con MFR2 promedio de 1 a 3 g/10 min (2.18kg/23(PC). The waste and/or post-consumption policies are selected from polypropylene policies, certified in place of final disposal, from various sources, selected from beverage labels and caps, agricultural burlap, sack raffia, agricultural material (padding, net. shade mesh), blow bottle, etc., but not limited to these, with contamination content of polyesters less than 2% and other polyolefins up to 20%, with average MFR2 of 1 to 3 g/10 min (2.18kg/ 23(PC).
Polímero de rendimiento son copolimeros semicristalinos con contenido amorfo sintonizaos y son compatibles con otros materiales polioiefimcos, pero no limitados a estos. Performance polymers are semi-crystalline copolymers with tuned amorphous content and are compatible with, but not limited to, other polyolefinic materials.
Debido a sus atributos de polímero únicos (como dureza, adherencia, seliabiiidad, suavidad, claridad, dispersión, adhesión, elasticidad y flexibilidad), se puede utilizar para crear nuevas posibilidades para la innovación de productos. Estos polímeros de rendimiento pueden agregar valor en aplicaciones de productos finales para industrias como la automotriz, la edificación y la construcción, el consumidor, la higiene y el embalaje. Due to its unique polymer attributes (such as hardness, adhesion, reliability, smoothness, clarity, dispersion, adhesion, elasticity, and flexibility), it can be used to create new possibilities for product innovation. These performance polymers can add value in end product applications for industries such as automotive, building and construction, consumer, hygiene, and packaging.
Se deberá realizar el procedimiento ya establecido en el estado del arte de lavado de polímeros de desecho y/o pos consumo, con separación de sólidos y
contaminación. The procedure already established in the state of the art for washing waste and/or post-consumption polymers must be carried out, with separation of solids and pollution.
En una primera modalidad de la presente invención, la composición mejorada para ia reestructuración de la cadena polímérica de un polímero de desecho y/o pos consumo comprende: a) Catalizadores a base de peróxidos orgánicos; y b) Catalizadores a base de derivados de ácidos grasos. In a first embodiment of the present invention, the improved composition for restructuring the polymer chain of a waste and/or post-consumer polymer comprises: a) Catalysts based on organic peroxides; and b) Catalysts based on fatty acid derivatives.
En donde ia relación del catalizador a) con respeto del catalizador b) varia deWhere the ratio of catalyst a) with respect to catalyst b) varies from
1:99% en peso hasta 99:1% en peso, y en donde el componente a) más el b) deben sumar el 100% en peso en ia composición mejorada. 1:99% by weight to 99:1% by weight, and where component a) plus b) must add up to 100% by weight in the improved composition.
En una segunda modalidad de la presente invención, ia composición mejorada para la reestructuración de la cadena polímérica de un polímero de desecho y/o pos consumo comprende: a) Catalizadores a base de peróxidos orgánicos seleccionados de¡ grupo que consiste en 2,5~dimetil-2.5-bis(terbutil-peroxi)hexano (DHBP), 2.5- dimetil- 2,5-bis(terbutil-peroxi)hexino-3 (DYBP), Dicumil-peroxido (DCUP), dkerbuíil-psróxido (DTBP), Terbutíi-cumií-peróxido (8CUP), bis (terbutilperoxi-isopropil)benceno. y combinaciones de ios mismos; b) Catalizadores a base de derivados de ácidos grasos orgánicos seleccionados del grupo que consiste en esteres del grupo acil corno monearil carboclclico diario carbociclico, derivados de aminas estéticamente impedidas con grupos alquilo, y combinaciones de ios mismos. In a second embodiment of the present invention, the improved composition for restructuring the polymer chain of a waste and/or post-consumer polymer comprises: a) Catalysts based on organic peroxides selected from the group consisting of 2.5~ dimethyl-2.5-bis(tert-butyl-peroxy)hexane (DHBP), 2.5-dimethyl-2,5-bis(tert-butyl-peroxy)hexyne-3 (DYBP), Dicumyl-peroxide (DCUP), dkerbuyl-psroxide (DTBP), Terbutíi-cumíí-peroxide (8CUP), bis (tert-butylperoxy-isopropyl)benzene. and combinations thereof; b) Catalysts based on derivatives of organic fatty acids selected from the group consisting of esters of the acyl group such as monearyl carbocyclic diary carbocyclic, derivatives of aesthetically hindered amines with alkyl groups, and combinations thereof.
En una tercera modalidad de ia presente invención., ia composición mejorada para la reestructuración de ia cadena pojimórica de un polímero de desecho y/o pos consumo comprende: a) Catalizadores a base de peróxidos orgánicos seleccionados de) grupo que consiste en 2,5-dtmetii-2.5-bis(terbutil~peroxi)hexano (DHBP), 2,5-
dimetil-2,S-bis(terbutil-peroxi)hexino~3 (DYBP). Dícurnil-peroxido (DCUP), di-terbutil-peroxido (DTBP), Terbutil-cumil-peróxido (BCUP), bis (terbutilperoxi-isopropil)benceno, y combinaciones de ios mismos; b) Catalizadores a base de derivados de ácidos grasos seleccionados del grupo que consiste en esteres de grupo acil como monoaril carbociclico diario carboclclico, derivados de aminas estéticamente impedidas con grupos alquilo, y combinaciones de ios mismos. In a third embodiment of the present invention, the improved composition for the restructuring of the pojimoric chain of a waste and/or post-consumer polymer comprises: a) Catalysts based on organic peroxides selected from the group consisting of 2.5 -dtmetii-2.5-bis(tertbutyl~peroxy)hexane (DHBP), 2,5- dimethyl-2,S-bis(tert-butyl-peroxy)hexyne~3 (DYBP). Dicurnyl-peroxide (DCUP), di-tert-butyl-peroxide (DTBP), Tert-butyl-cumyl-peroxide (BCUP), bis(tert-butylperoxy-isopropyl)benzene, and combinations thereof; b) Catalysts based on derivatives of fatty acids selected from the group consisting of acyl group esters such as monoaryl carbocyclic daily carbocyclic, derivatives of aesthetically hindered amines with alkyl groups, and combinations thereof.
En donde la relación del catalizador a) con respeto del catalizador b) varía de 1:99% en peso hasta 99:1% en peso, y en donde ei componente a) más el b) deben sumar el 100% en peso en la composición mejorada. Where the ratio of catalyst a) with respect to catalyst b) varies from 1:99% by weight to 99:1% by weight, and where component a) plus b) must add up to 100% by weight in the improved composition.
En una cuarta modalidad de la presente invención, la composición mejorada para la reestructuración de ia cadena poiimérica de un polímero de desecho y/o pos consumo comprende; a) Catalizadores a baso de peróxidos orgánicos seleccionados del grupo que consiste en 2,5-dimetil- 2,5-bis(terbutil-peroxl)bexano (DHBP). 2,5- dimetil-2,5-bis(terbutll-peroxí)hexsno-3 (DYBP), Dicumil-peroxido (DCUP), di-terbutil-peróxido (DTBP), Terbutil-cumil-peróxido (BCUP), bis (terbutilperoxi-isopropil)benceno, y combinaciones de los mismos; b) Catalizadores a base de derivados de ácidos grasos seleccionados del grupo que consiste en esteres de grupo acil como monoaril carboclclico diario carbociclico, derivados de aminas estéticamente impedidas con grupos alquilo, y combinaciones de los mismos, In a fourth embodiment of the present invention, the improved composition for restructuring the polymer chain of a waste and/or post-consumer polymer comprises; a) Catalysts based on organic peroxides selected from the group consisting of 2,5-dimethyl-2,5-bis(tert-butyl-peroxl)bexane (DHBP). 2,5- dimethyl-2,5-bis(tert-butyl-peroxy)hexsno-3 (DYBP), Dicumyl-peroxide (DCUP), di-tert-butyl-peroxide (DTBP), Tert-butyl-cumyl-peroxide (BCUP), bis ( tert-butylperoxy-isopropyl)benzene, and combinations thereof; b) Catalysts based on derivatives of fatty acids selected from the group consisting of acyl group esters such as monoaryl carbocyclic daily carbocyclic, derivatives of aesthetically hindered amines with alkyl groups, and combinations thereof,
En donde la relación del catalizador a) con respeto del catalizador b) varia de 15:85% en peso hasta 90:10% en peso, de preferencia de 10:90% en peso hasta 50:50 en peso y en donde el componente a) más el b) deben sumar el 100% en peso en la composición mejorada. Where the ratio of catalyst a) with respect to catalyst b) varies from 15:85% by weight to 90:10% by weight, preferably from 10:90% by weight to 50:50 by weight and where the component a) plus b) must add up to 100% by weight in the improved composition.
En una quinta modalidad de la presente Invención, los polímeros de desecho y/o
de pos consumo seleccionados tienen un índice de flujo de fusión (MFR) en rangos de entre 1 hasta 30 g/10 min (ASTM-D- 1238-13, .2.16 KG, 230°C), con rangos de contaminación variable (ej. 80% PP/20%PE) y fuentes de origen diversas. In a fifth embodiment of the present invention, the waste polymers and/or Selected post-consumer products have a melt flow rate (MFR) ranging from 1 to 30 g/10 min (ASTM-D-1238-13, .2.16 KG, 230°C), with variable contamination ranges (eg 80% PP/20% PE) and various sources of origin.
En una sexta modalidad de la presente invención, las poliolefinas de desecho y/o pos consumo se seleccionan de poliolefinas de polipropileno, certificadas en lugar de disposición final, de diversas fuentes, sdeccionadas de etiqueta y taparrosca de bebidas, arpilla agrícola, rafia de saco, material de agricultura (acolchado, red, malla sombra), botella de soplo, etc,, pero no limitadas a estas, con contenido de contaminación de poliésteres menor al 2% y otras poliolefinas hasta en 20%, con MFR2 promedio de 1 a 3 g/10 min (2.16kg/230°G); In a sixth embodiment of the present invention, the waste and/or post-consumer polyolefins are selected from polypropylene polyolefins, certified instead of final disposal, from various sources, selected from beverage labels and caps, agricultural burlap, sack raffia , agricultural material (padding, netting, shade mesh), blow bottle, etc., but not limited to these, with a contamination content of polyesters less than 2% and other polyolefins up to 20%, with an average MFR2 of 1 to 3g/10min (2.16kg/230°G);
En una séptima modalidad de la presente invención, el proceso para reciclar polímeros de desecho y/o pos consumo comprende los siguientes pasos: i) Seleccionar polímeros de desecho y/o de pos consumo del grupo que consiste en poliolefinas, poiiésteres, homopolímeros y copolímeros de estos, y combinaciones de los mismos; ii) seleccionar una composición mejorada para la reestructuración de la cadena polimérica de un polímero de desecho y/o pos consumo, en donde la composición comprende: a) Catalizadores a Dase de peróxidos orgánicos; y b} Catalizadores a base de derivados de ácidos grasos, en donde la relación del catalizador a) con respeto del catalizador b) varía de 1:99% en peso hasta 99:1% en peso, y en donde el componente a) más el b) deben sumar el 100% en peso en ia composición mejorada; iii) Colocar y/o polímeros seleccionados y la composición mejorada en una máquina de extrusión y/o de inyección de forma individual y/o en forma de masterbatch, en donde la relación de composición mejorada con respecto al polímero varia de 1%:99% en peso hasta 39%:1% en peso, de preferencia de 10%:90% hasta 5G%:50% en peso; iv) calentar a una temperatura de extrusión y/o de inyección hasta por debajo de
280ºC, de preferencia de entre 155°C hasta 260ºC, y con más preferencia de entre 210ºC hasta 240ºC; y y) obtener el polímero reciclado, en donde el polímero reciclado obtenido tiene ios siguientes valores:
In a seventh embodiment of the present invention, the process for recycling waste and/or post-consumer polymers comprises the following steps: i) Selecting waste and/or post-consumer polymers from the group consisting of polyolefins, polyesters, homopolymers and copolymers of these, and combinations thereof; ii) selecting an improved composition for the restructuring of the polymeric chain of a waste and/or post-consumer polymer, wherein the composition comprises: a) Organic peroxide Dase catalysts; and b} Catalysts based on fatty acid derivatives, where the ratio of catalyst a) with respect to catalyst b) varies from 1:99% by weight to 99:1% by weight, and where component a) plus b) must add up to 100% by weight in the improved composition; iii) Placing and/or selected polymers and the improved composition in an extrusion and/or injection machine individually and/or in the form of a masterbatch, where the ratio of the improved composition with respect to the polymer varies from 1%:99 % by weight up to 39%:1% by weight, preferably from 10%:90% to 5G%:50% by weight; iv) heating to an extrusion and/or injection temperature to below 280°C, preferably from 155°C to 260°C, and more preferably from 210°C to 240°C; and y) obtaining the recycled polymer, where the recycled polymer obtained has the following values:
En una octava modalidad de la presente invención, el proceso para reciclar polímeros de desecho y/o pos consumo comprende los siguientes pasos; i) Seleccionar polímeros de desecho y/o de pos consumo del grupo que consiste en polioleflnas, poliésteres, homopolímeros y copolímeros de estos, y combinaciones de los mismos, en donde, ios polímeros de desecho y/o de pos consumo seleccionados tienen un Índice de flujo de fusión (MFR) en rangos de entro 1 hasta 30 g/10 min (ASTM-D-1238-13.
2/16 KG, 230°C), con rangos de contaminación variable (ej. 80% PP/20%PE) y fuentes de origen diversas; ii) seleccionar una composición mejorada para la reestructuración de ía cadena polimérica de un polímero de desecho y/o pos consumo, en donde la composición comprende: a) Catalizadores a base de peróxidos orgánicos; y b) Catalizadores a base de derivados de ácidos grasos, en donde la relación del catalizador a) con respeto de! catalizador b) varía de 1:99% en peso hasta 99:1% en peso, y en donde el componente a) más el b) deben sumar el 100% en peso en la composición mejorada; iii) Colocar los polímeros seleccionados y la composición mejorada en una máquina de extrusión y/o de inyección de forma individual y/o en forma de masterbatch, en donde la relación dé composición mejorada con respecto ai polímero varia de 1%:99% en peso hasta 99%: 1% en peso, de preferencia de 10%:90% hasta 50%:50% en peso; iv) calentar a una temperatura de extrusión y/o de inyección hasta por debajo de 280ºC, de preferencia de entre 155°C hasta 260ºC , y con más preferencia de entre 210“C hasta 240ºC; y v) obtener el polímero reciclado, en donde el polímero reciclado obtenido tiene los siguientes valores:
In an eighth embodiment of the present invention, the process for recycling waste and/or post-consumer polymers comprises the following steps; i) Select waste and/or post-consumer polymers from the group consisting of polyolefins, polyesters, homopolymers and copolymers thereof, and combinations thereof, where the selected waste and/or post-consumer polymers have an Index melt flow rate (MFR) ranging from 1 to 30 g/10 min (ASTM-D-1238-13. 2/16 KG, 230°C), with variable contamination ranges (eg 80% PP/20% PE) and different sources of origin; ii) selecting an improved composition for the restructuring of the polymeric chain of a waste and/or post-consumption polymer, wherein the composition comprises: a) Catalysts based on organic peroxides; and b) Catalysts based on derivatives of fatty acids, where the ratio of catalyst a) with respect to! catalyst b) ranges from 1:99% by weight to 99:1% by weight, and where component a) plus b) must add up to 100% by weight in the improved composition; iii) Place the selected polymers and the improved composition in an extrusion and/or injection machine individually and/or in the form of a masterbatch, where the ratio of the improved composition with respect to the polymer varies from 1%:99% in weight to 99%: 1% by weight, preferably from 10%:90% to 50%:50% by weight; iv) heating to an extrusion and/or injection temperature to below 280°C, preferably from 155°C to 260°C, and more preferably from 210°C to 240°C; and v) obtaining the recycled polymer, where the recycled polymer obtained has the following values:
En una novena modalidad de la presente invención, es proceso para reciclar polímeros de desecho y/o pos consumo comprende los siguientes pasos; i) Seleccionar polímeros de desecho y/o de pos consumo del grupo que consiste en polidefinas de polipropileno, certificadas en lugar de disposición final, de diversas fuentes, seleccionadas de etiqueta y taparrosca de bebidas, arpilla agrícola, rafia de saco, material de agricultura (acolchado, red, malla sombra), botella de soplo, etc., pero no limitadas a estas, con contenido de contaminación de poíiésteres menor a! 2% y otras poliolefinas hasta en 20%, con MFR2 promedio de 1 a 3 g/10 min (2.16kg/230°C}; i?) seleccionar una composición mejorada para la reestructuración de la cadena polimérica de un polímero de desecho y/o pos consumo, en donde la composición comprende; a) Catalizadores a base de peróxidos orgánicos; y b) Catalizadores a base de derivados de ácidos grasos, en donde la relación del catalizador a) con respeto del catalizador b) varía deIn a ninth embodiment of the present invention, the process for recycling waste and/or post-consumer polymers comprises the following steps; i) Select waste and/or post-consumer polymers from the group consisting of polypropylene polydefines, certified in place of final disposal, from various sources, selected from beverage labels and caps, agricultural burlap, sack raffia, agricultural material (padding, netting, shade mesh), blow bottle, etc., but not limited to these, with polyester contamination content less than! 2% and other polyolefins up to 20%, with average MFR2 from 1 to 3 g/10 min (2.16kg/230°C}; i?) select an improved composition for the restructuring of the polymeric chain of a waste polymer and / or post consumption, where the composition comprises; a) Catalysts based on organic peroxides; and b) Catalysts based on fatty acid derivatives, where the ratio of catalyst a) with respect to catalyst b) varies from
1:99% en peso hasta 99:1% en peso, y en donde ei componente a) más el b) deben sumar ei 100% en peso en la composición mejorada; iii) Colocar los polímeros seleccionados y la composición mejorada en una máquina de extrusión y/o de inyección de forma individual y/o en forma de masterbatch, en
donde ía relación de composición mejorada con respecto ai polímero varía de 1%;99% en peso hasta 99%: 1% en peso, de preferencia de 10% SG% hasta 50%:50% en peso: iv) calentar a una temperatura de extrusión y/o de inyección hasta por debajo de 280ºC, de preferencia de entre 155ºC hasta 260ºC . y con más preferencia de entre 210ºC hasta 240ºC; y v) obtener el polímero reciclado, en donde ei polímero reciclado obtenido tiene ios siguientes valores:
a ia j
1:99% by weight to 99:1% by weight, and where component a) plus component b) must add up to 100% by weight in the improved composition; iii) Place the selected polymers and the improved composition in an extrusion and/or injection machine individually and/or in the form of a masterbatch, in where the improved composition ratio with respect to the polymer varies from 1%; 99% by weight to 99%: 1% by weight, preferably from 10% SG% to 50%: 50% by weight: iv) heating to a temperature of extrusion and/or injection to below 280ºC, preferably between 155ºC and 260ºC. and more preferably between 210°C to 240°C; and v) obtaining the recycled polymer, where the recycled polymer obtained has the following values: to ia j
En una décima modalidad de ia presente invención, las máquinas de extrusión y/o de inyección se seleccionan de extrusoras doble husillo con sistema de dosificación gravímétrica y sistema de venteo de gases, extrusoras con componente de amasadoras tipo
Banbury tipo batch con alimentación a monohusillo y dosificación gravimétríca, extrusoras doble husillo tipo kneader" con sistema de venteo de gases y dosificación gravimétríca, etc. In a tenth embodiment of the present invention, the extrusion and/or injection machines are selected from twin-screw extruders with a gravimetric dosing system and a gas venting system, extruders with a mixer-type component Batch-type Banbury with single-screw feeding and gravimetric dosing, kneader-type twin-screw extruders with gas venting system and gravimetric dosing, etc.
En una undécima modalidad de la presente invención, los esteres del grupo atollo son radicales terminales y se pueden seleccionan de entre Irgatec CR 76 de BASF y GIBA, pero limitados únicamente a estos, etc. In an eleventh embodiment of the present invention, the atol group esters are terminal radicals and can be selected from, but only limited to, Irgatec CR 76 of BASF and GIBA, etc.
Ejemplos examples
Los siguientes ejemplos tienen ia finalidad de ilustrar ia invención no de limitarla, cualquier variación de ios mismos se consideran que caen dentro del alcance de la presente invención. The following examples have the purpose of illustrating the invention and not limiting it, any variation thereof is considered to fall within the scope of the present invention.
Ejemplo 1 Example 1
Se procede a fabricar una composición mejorada para la reestructuración de la cadena polímérica de un polímero de desecho y/o pos consumo de la presente invención de la siguiente manera: Seleccionar los catalizadores a base de peróxidos orgánicos (a) seleccionados del grupo que consiste en 2.5-dimetil -2,5-bis(terbutil-peroxi)hexano (DHBP), 2,5-dimetil~2,5- bis(terbutil-peroxi)hexino-3 (DYBF), Dicumil-peroxido (DCUP), di-terbutil-peróxido (DTBP), Terbutil-cumil-peróxido (BCUP), bis (terbutilperoxi-isopropil)benceno, y combinaciones de los mismos; An improved composition for the restructuring of the polymeric chain of a waste and/or post-consumer polymer of the present invention is manufactured in the following manner: Select the catalysts based on organic peroxides (a) selected from the group consisting of 2,5-dimethyl-2,5-bis(tert-butyl-peroxy)hexane (DHBP), 2,5-dimethyl~2,5- bis(tert-butyl-peroxy)hexyne-3 (DYBF), Dicumyl-peroxide (DCUP), di -tert-butyl-peroxide (DTBP), Tert-butyl-cumyl-peroxide (BCUP), bis(tert-butylperoxy-isopropyl)benzene, and combinations thereof;
- Seleccionar los catalizadores a base de derivadas de ácidos grasos (b) seleccionados del grupo que consiste en esteres de grupo acil como monoaril carbociclico diario carbociclico, derivados de aminas estéricamente impedidas con grupos alquilo, y combinaciones de ios mismos; - Mezclar los catalizadores a) y b) en un recipiente y/o una mezcladora hasta su completa homogeneización, en donde ia relación del catalizador a) con respeto des catalizador b) es de 1:99% en peso hasta 99:1% en peso, y en donde el componente a) más el b) deben
sumar el 100% en peso en la composición mejorada, y - Select the catalysts based on derivatives of fatty acids (b) selected from the group consisting of acyl group esters such as daily carbocyclic monoaryl carbocyclic, derivatives of sterically hindered amines with alkyl groups, and combinations thereof; - Mix catalysts a) and b) in a container and/or a mixer until completely homogenized, where the ratio of catalyst a) with respect to catalyst b) is from 1:99% by weight to 99:1% by weight , and where component a) plus b) must add 100% by weight in the improved composition, and
~ Vaciar y envasar en sacos de 0.5 hasta 10 kilos y/o litros, la composición mejorada esta íisia para usarse. ~ Empty and pack in bags from 0.5 to 10 kilos and/or liters, the improved composition is ready to be used.
Ejemplo 2 Example 2
Se procede a recadar polímeros de desecho y/o pos consumo con ja composición mejorada para la reestructuración de la cadena polímérica de la presente invención de la siguiente manera: i) Seleccionar polímeros tío desecho y/o de pos consumo del grupo que consiste en poliolefinas, poliésteres, homopolímeros y copolímeros de estos, y combinaciones de ios mismos; ii) seleccionar una composición mejorada para la reestructuración de la cadena polímérica de un polímero de desecho y/o pos consumo, en donde la composición comprende: a) Catalizadores a Pase de peróxidos orgánicos; y b) Catalizadores a base de derivados de ácidos grasos, en donde la relación del catalizador a) con respeto del catalizador b) varia de 1:99% en peso hasta 99:1% en peso, y en donde el componente a) más el b) deben sumar el 100% en peso en la composición mejorada; iii) Colocar los polímeros seleccionados y ia composición mejorada en una máquina de extrusión y/o de inyección de forma Individual y/o en forma de masterbatch, en donde la relación de composición mejorada con respecto al polímero varia de 1%:99% en peso hasta 99%: 1% en peso, de preferencia de 10%: 3014 hasta S0%:50% en peso; iv) calentar a una temperatura de extrusión y/o de inyección hasta por debajo de 280ºC, de preferencia de entre 1S5ºC hasta 280ºC. y con más preferencia de entre 210ºC hasta 240°C; y v) obtener el polímero reciclado, en donde el polímero reciclado obtenido tiene
ios siguientes valores:
g/10 min
Waste and/or post-consumer polymers with an improved composition for the restructuring of the polymer chain of the present invention are collected as follows: i) Select waste and/or post-consumer polymers from the group consisting of polyolefins , polyesters, homopolymers and copolymers of these, and combinations thereof; ii) selecting an improved composition for the restructuring of the polymeric chain of a waste and/or post-consumer polymer, wherein the composition comprises: a) Organic Peroxide Pass Catalysts; and b) Catalysts based on fatty acid derivatives, where the ratio of catalyst a) with respect to catalyst b) varies from 1:99% by weight to 99:1% by weight, and where component a) plus b) must add up to 100% by weight in the improved composition; iii) Place the selected polymers and the improved composition in an extrusion and/or injection machine individually and/or in the form of masterbatch, where the ratio of the improved composition with respect to the polymer varies from 1%:99% in weight to 99%: 1% by weight, preferably 10%: 3014 to 50%:50% by weight; iv) heating to an extrusion and/or injection temperature to below 280°C, preferably between 1-5°C to 280°C. and more preferably between 210°C to 240°C; and v) obtaining the recycled polymer, wherein the recycled polymer obtained has the following values: g/10min
En donde, los polímeros de desecho y/o de pos consumo seleccionados tienen un Indice de flujo de fusión (MFR) en rangos de entre 1 hasta 30 g/10 min (ASTM-D-1238-13, 2.18 KG, 230º0), con rangos de contaminación variable (ej. 80% PP/20%PE) y fuentes de origen diversas. Where, the selected waste and/or post-consumer polymers have a Melt Flow Index (MFR) ranging from 1 to 30 g/10 min (ASTM-D-1238-13, 2.18 KG, 230º0), with variable contamination ranges (eg 80% PP/20% PE) and diverse sources of origin.
En donde las poliolefinas de desecho y/o pos consumo se seleccionan de poíiolefinas de polipropileno, certificadas en lugar de disposición final, de diversas fuentes, seleccionadas de etiqueta y taparrosca de bebidas, arpilla agrícola, rafia de saco, material do agricultura (acolchado, red, malla sombra), botella de soplo, etc., pero no limitadas a estas, con contenido de contaminación de poliésteres menor ai 2% y otras poíiolefinas hasta en 20%,
con MFR2 promedio de 1 a 3 g/10 min (2,16kg/230°C); Where the waste and/or post-consumer polyolefins are selected from polypropylene polyolefins, certified in place of final disposal, from various sources, selected from beverage labels and caps, agricultural burlap, sack raffia, agricultural material (padding, net, shade mesh), blow bottle, etc., but not limited to these, with a contamination content of polyesters less than 2% and other polyolefins up to 20%, with average MFR2 from 1 to 3 g/10 min (2.16kg/230°C);
Ejemplo 3 Example 3
Se procede a reciclar polímeros de desecho y/o pos consumo con la composición mejorada para la reestructuración de la cadena poiiméríoa de la presente invención de la siguiente manera: - Seleccionar poliolefinas de desecho y/o pos consumo (polipropileno), certificadas en lugar de disposición final, de «diversas fuentes, como son etiqueta y taparxosca de bebidas, arpilla agrícola, rafia de saco, material de agricultura (acolchado, red, malla sombra), botella de soplo etc,, pero no limitadas a estas, con contenido de contaminación de poiiésteres menor al 2% y otras poliolefinas hasta en 20%, con MFR2 promedio de 1 a 3 g/10 min (2.16kg/230°C); Waste and/or post-consumer polymers are recycled with the improved composition for the restructuring of the polymeric chain of the present invention as follows: - Select waste and/or post-consumer polyolefins (polypropylene), certified instead of final disposal, from "various sources, such as beverage labels and covers, agricultural burlap, sack raffia, agricultural material (padding, netting, shade mesh), puff bottles, etc., but not limited to these, with content of polyester contamination less than 2% and other polyolefins up to 20%, with average MFR2 of 1 to 3 g/10 min (2.16kg/230°C);
- Se deberá realizar procedimiento de lavado de poliolefinas, con separación be sólidos y contaminación; - A polyolefin washing procedure must be carried out, with separation of solids and contamination;
- Las poliolefinas de desecho y/o pos consumo (polipropileno) es peletizaclo en máquina de extrusión con compactado» previa o in sítu para alimentación de husillo, a temperaturas en el rango de proceso de 185ºC hasta 220°C, con sistemas de venteo de vacio para extracción de tintas, carbones o volátiles. - Waste and/or post-consumer polyolefins (polypropylene) are pelletized in an extrusion machine with prior compacting or in situ for screw feeding, at temperatures in the process range of 185ºC to 220ºC, with venting systems of vacuum for extraction of inks, carbons or volatiles.
- Las poliolefinas de desecho y/o pos consumo (polipropileno) son sometidas a sistema de filtrado mediante filtro láser o cambia mallas de presión mediante temperaturas en el rango de 200°C a 220°C; - Waste and/or post-consumer polyolefins (polypropylene) are subjected to a filtering system using a laser filter or change pressure meshes using temperatures in the range of 200°C to 220°C;
- Las poliolefinas (polipropileno) recicladas obtenidas son sometidas a estudio ASTM-D-1238-13 (2.18 kg/230°C) y resultando con un indice de fluidez en el rango de 1 a 3 g/10 min. - The recycled polyolefins (polypropylene) obtained are subjected to the ASTM-D-1238-13 study (2.18 kg/230°C) and resulting in a fluidity index in the range of 1 to 3 g/10 min.
~ Para este proceso de reciclaje se utiliza extrusoras doble husillo con sistema de dosificación graviméírica y sistema de venteo de gases, extrusoras con componente de amasadoras tipo Banbury tipo batch con alimentación a monohusillo y dosificación
gravímétrica, extrusoras doble husillo tipo “kneader” con sistema de venteo de gases y dosificación gravimetrica, ~ For this recycling process, twin-screw extruders with a gravimetric dosing system and gas venting system are used, extruders with Banbury-type batch mixers with single-screw feeding and dosing. gravimetric, "kneader" type twin screw extruders with gas venting system and gravimetric dosing,
- Una vez establecida la máquina se deberá dosificar composición mejorada para la reestructuración de la cadena poliméríca del ejemplo 1, para modificar la velocidad de corte del polímero a tratar (poliolefinas de polipropileno), con rangos establecidos de 1 wt% de la composición mejorada (i):99wí% de resina de desecho y/o pos consumo (ii) hasta 99wt%(í): 1 wt%(ii), preferentemente en un rango de 10wt%(i):90wt%(ii) hasta 50wt%(i): 50wt(il). - Once the machine is established, the improved composition for the restructuring of the polymeric chain of example 1 must be dosed, to modify the shear rate of the polymer to be treated (polyolefins of polypropylene), with established ranges of 1 wt% of the improved composition ( i):99wí% of waste and/or post-consumer resin (ii) up to 99wt%(í): 1 wt%(ii), preferably in a range of 10wt%(i):90wt%(ii) up to 50wt% (i): 50wt(il).
- obtener el polímero reciclado, en donde el polímero reciclado obtenido tiene los siguientes valores:
- obtaining the recycled polymer, where the recycled polymer obtained has the following values:
Ejemplo 4 Example 4
Se procede a fabricar una tela no tejida con polipropileno virgen en una
proporción de entre 75% hasta 1% y con el polímero reciclado del ejemplo 2 y/o 3 en una proporción de entre 25% hasta 99% medíante un proceso melt blown y/o spunbond de la siguiente manera: A nonwoven fabric is manufactured from virgin polypropylene in a proportion of between 75% and 1% and with the recycled polymer of example 2 and/or 3 in a proportion of between 25% and 99% by means of a melt blown and/or spunbond process as follows:
A) carga de polipropileno en tolva para bateó de 25 a 100 kilos por batchA) polypropylene load in hopper for batting from 25 to 100 kilos per batch
8} Plastifiación y transporte en husillo principal; 8} Plasticizing and conveying in main spindle;
C) Extrusión en dado de 19,000 a 25.000 hitos; C) Die extrusion from 19,000 to 25,000 milestones;
O) Paso por cortina de aíre para heterogenizacíón de hilos y mezclado; O) Passing through an air curtain for heterogenization of threads and mixing;
E) Formación de película en calandres; E) Film formation in calenders;
F) Producción de rollo de tela no tejida: F) Production of nonwoven fabric roll:
Esquema de Velocidad de Corte del material modificado, se observa comportamiento paralelo y entrecruzado con polipropileno virgen de fluidez 35 para procesos de tela no tejida Scheme of Shear Rate of the modified material, parallel and crosslinked behavior is observed with virgin polypropylene of flowability 35 for nonwoven fabric processes
Con valores de reometría capilar de la tabla 1 siguiente: With capillary rheometry values from table 1 below:
TABLA 1
TABLE 1
Estos valores se graficaron en la figura 1
Breve descripción de fas figuras These values were plotted in figure 1 Brief description of the figures
La Figura 1 representa valores de reometría capilar de una tela no tejida con polipropileno virgen en una proporción de entre 75% hasta 1% y con ei polímero reciclado del ejemplo 2 y/o 3 en una proporción de entre 25% hasta 99% mediante un proceso mefi biown y/o spunbond del ejemplo 4.
Figure 1 represents capillary rheometry values of a nonwoven fabric with virgin polypropylene in a proportion of between 75% and 1% and with the recycled polymer of example 2 and/or 3 in a proportion of between 25% and 99% by means of a mefi biown and/or spunbond process from example 4.
Claims
REIVINDICACIONES
1, Una composición mejorada para ia reestructuración de ia cadena poliméríca de un polímero de· desecho y/o pos consumo caracterizada porque comprende: a) Catalizadores a base de peróxidos orgánicos seleccionados del grupo que consiste en 2,S-dimetil- 2,5-bis(terbutil-peroxi)hexano (DHBP), 2,5- dimetil-2,5-bis(terbutil-peroxi)hexino-3 (DYBP), Dicumil-peroxido (DCUP), di-terbutil-peróxido (DT8P), Terbutil-cumil-peróxido (BCUP), bis (terbutilperoxi-isopropil)benceno, y combinaciones de ios mismos; b) Catalizadores a base de derivados de ácidos grasos seleccionados del grupo que consiste en esteres de grupo acií como monoaril carbociclico diario carbociclico, derivados de aminas esféricamente impedidas con grupos alquilo, y combinaciones de ios mismos, en donde la relación del catalizador a) con respeto del catalizador b) varía de 1:99% en peso hasta 99:1% en peso, y en donde el componente a) más el b) deben sumar ei1, An improved composition for the restructuring of the polymeric chain of a waste and/or post-consumer polymer characterized in that it comprises: a) Catalysts based on organic peroxides selected from the group consisting of 2,S-dimethyl-2,5 -bis(tert-butyl-peroxy)hexane (DHBP), 2,5-dimethyl-2,5-bis(tert-butyl-peroxy)hexyne-3 (DYBP), Dicumyl-peroxide (DCUP), di-tert-butyl-peroxide (DT8P) , tert-butyl-cumyl-peroxide (BCUP), bis(tert-butylperoxy-isopropyl)benzene, and combinations thereof; b) Catalysts based on derivatives of fatty acids selected from the group consisting of esters of the aci group such as monoaryl carbocyclic daily carbocyclic, derivatives of spherically hindered amines with alkyl groups, and combinations thereof, where the ratio of catalyst a) with with respect to catalyst b) varies from 1:99% by weight to 99:1% by weight, and where component a) plus b) must add up to i
100% en peso en ia composición mejorada. 100% by weight in the improved composition.
2. La composición mejorada de conformidad con ia reivindicación 1, caracterizada porque la relación del catalizador a) con respeto del catalizador b) varía de 15:85% en peso hasta 90:10% en peso, de preferencia de 10:90% en peso hasta 50:50 en peso y en donde el componente a) más el b) deben sumar ei 100% en peso en la composición mejorada. 2. The improved composition according to claim 1, characterized in that the ratio of catalyst a) with respect to catalyst b) varies from 15:85% by weight to 90:10% by weight, preferably 10:90% by weight. weight up to 50:50 by weight and where component a) plus b) must add up to 100% by weight in the improved composition.
3. Un proceso para reciclar polímeros de desecho y/o pos consumo caracterizado porque comprende los siguientes pasos: i) Seleccionar polímeros de desecho y/o de pos consumo del grupo que consiste en poliolefinas, poliésteres. homopolímeros y copolímeros de estos, y combinaciones
de los mismos; ii) seleccionar una composición mejorada para la reestructuración de ia cadena poliméríca de un polímero de desecho y/o pos consumo, en donde ia composición comprende: a) Catalizadores a base de peróxidos orgánicos; y b) Catalizadores a base de derivados de ácidos grasos, en donde la relación del catalizador a) con respeto del catalizador b) varia de 1:99% en peso hasta 99:1% en peso, y en donde el componente a) más eí b) deben sumar el 100% en peso en ia composición mejorada; iii) Colocar ios polímeros seleccionados y la composición mejorada en una máquina de extrusión y/o de inyección de forma individual y/o en forma de masterbatch, en donde ia relación de composición mejorada con respecto ai polímero varía de 1%;99% en peso hasta 99%: 1% en peso, de preferencia de 10%:9G% hasta 5G%:50% en peso: iv) calentar a una temperatura de extrusión y/o de inyección hasta por debajo de 280°C, de preferencia de entre 155ºC hasta 260ºC , y con más preferencia de entre 21 (PC hasta 240 ºC; y v) obtener el polímero reciclado, en donde el polímero reciclado obtenido tiene los siguientes valores:
3. A process for recycling waste and/or post-consumer polymers characterized in that it comprises the following steps: i) Selecting waste and/or post-consumer polymers from the group consisting of polyolefins, polyesters. homopolymers and copolymers of these, and combinations thereof; ii) selecting an improved composition for the restructuring of the polymeric chain of a waste and/or post-consumption polymer, where the composition comprises: a) Catalysts based on organic peroxides; and b) Catalysts based on fatty acid derivatives, where the ratio of catalyst a) with respect to catalyst b) varies from 1:99% by weight to 99:1% by weight, and where component a) plus eí b) must add up to 100% by weight in the improved composition; iii) Placing the selected polymers and the improved composition in an extrusion and/or injection machine individually and/or in the form of a masterbatch, where the ratio of the improved composition with respect to the polymer varies from 1%; 99% in weight to 99%: 1% by weight, preferably from 10%:9G% to 5G%:50% by weight: iv) heating to an extrusion and/or injection temperature below 280°C, preferably between 155ºC to 260ºC, and more preferably between 21 (PC up to 240ºC; and v) obtain the recycled polymer, where the recycled polymer obtained has the following values:
4. Ei proceso de conformidad con la reivindicación 3, caracterizado porque los polímeros de desecho y/o de pos consumo seleccionados tienen un Indice de flujo de fusión (MFR) en rangos de entre 1 hasta 30 g/10 min (ASTM-D-1238-13, 2.16 KG. 23G°C), con rangos de contaminación variable (ej, 80% PP/20%PE) y fuentes de origen diversas. 4. The process according to claim 3, characterized in that the selected waste and/or post-consumer polymers have a Melt Flow Index (MFR) in ranges between 1 to 30 g/10 min (ASTM-D- 1238-13, 2.16 KG 23G°C), with variable contamination ranges (eg, 80% PP/20% PE) and diverse sources of origin.
5. Ei proceso de conformidad con la reivindicación 3, caracterizado porque las poíioiefínas de desecho y/o pos consumo se seleccionan de poliolefinas de polipropileno, certificadas en lugar de disposición final, de diversas fuentes, seleccionadas de etiqueta y taparrosca de bebidas, arpilla agrícola, rafia de saco, material de agricultura (acolchado, red, malla sombra), botella de soplo, con contenido de contaminación de poliésteres menor ai 2% y otras poliolefinas hasta en 20%, con MFR2 promedio de 1 a 3 g/10 min (2.16kg/230°C), 5. The process according to claim 3, characterized in that the waste and/or post-consumer polyolefins are selected from polypropylene polyolefins, certified instead of final disposal, from various sources, selected from beverage labels and caps, agricultural burlap , sack raffia, agricultural material (padding, netting, shade mesh), blow bottle, with contamination content of polyesters less than 2% and other polyolefins up to 20%, with average MFR2 of 1 to 3 g/10 min (2.16kg/230°C),
6. El proceso de conformidad con ia reivindicación 3, caracterizado porque las máquinas de de extrusión y/o de inyección se seleccionan de extrusoras doble husillo con sistema de dosificación gravimétrica y sistema ds venteo de gases, extrusoras con componente de amasadoras tipo Banbury tipo baich con alimentación a monohusiíio y dosificación gravimétrica, extrusoras doble husillo tipo “kneader” con sistema de venteo de gases y
dosificación gravlmétrica. 6. The process according to claim 3, characterized in that the extrusion and/or injection machines are selected from twin-screw extruders with a gravimetric dosing system and a gas venting system, extruders with a Banbury-type mixer component, baich type with single screw feeding and gravimetric dosing, twin screw extruders type "kneader" with gas venting system and gravimetric dosing.
7. El uso de una composición mejorada de la reivindicación 1, para ia reestructuración de ia cadena polirnérica de un polímero de desecho y/o pos consumo 7. The use of an improved composition of claim 1, for the restructuring of the polymeric chain of a waste and/or post-consumer polymer
8. El uso de la composición mejorada de conformidad con ia reivindicación 7 en donde ios polímeros de desecho y/o de pos consumo se seleccionan del grupo que consiste en polioiefinas, poliésteres, homopolímeros y copolímeros de estos, y combinaciones de ios mismos; 8. The use of the improved composition according to claim 7, wherein the waste and/or post-consumer polymers are selected from the group consisting of polyolefins, polyesters, homopolymers and copolymers thereof, and combinations thereof;
9. El uso de la composición mejorada de conformidad con ia reivindicación 7, en donde los polímeros de desecho y/o de pos consumo seleccionados tienen un índice de flujo de fusión (MFR) en rangos de entre 1 hasta 30 g/10 min (ASTM-D-1238-13, 2,16 KG, 230ºC), con rangos de contaminación variable (ej. 80% PP/20%PE) y fuentes de origen diversas. 9. The use of the improved composition according to claim 7, wherein the selected waste and/or post-consumer polymers have a melt flow index (MFR) in ranges between 1 to 30 g/10 min ( ASTM-D-1238-13, 2.16 KG, 230ºC), with variable contamination ranges (eg 80% PP/20% PE) and diverse sources of origin.
10. El uso de ia composición mejorada de conformidad con la reivindicación 7, en donde las poliolefinas de desecho y/o pos consumo se seleccionar: de poliolefinas de polipropileno, certificadas en lugar de disposición final, de diversas fuentes, seleccionadas de etiqueta y taparrosca de bebidas, arpilla agrícola, rafia de seco, material de agricultura10. The use of the improved composition according to claim 7, wherein the waste and/or post-consumer polyolefins are selected: from polypropylene polyolefins, certified instead of final disposal, from various sources, selected from label and screw cap of beverages, agricultural burlap, dry raffia, agricultural material
(acolchado, red, malla sombra), botella de soplo, con contenido de contaminación de poliésteres menor ai 2% y otras poliolefinas hasta en 20%, con MFR2 promedio de 1 a 3 g/10 mín (2.16kg/230°G).
(padding, mesh, shade mesh), blow bottle, with contamination content of polyesters less than 2% and other polyolefins up to 20%, with average MFR2 of 1 to 3 g/10 min (2.16kg/230°G) .
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MXMX/A/2021/004979 | 2021-04-29 | ||
| MX2021004979A MX2021004979A (en) | 2021-04-29 | 2021-04-29 | An improved composition for restructuring the polymer chain ??of a waste and post-consumer polymer based on the modification of the cutting speed, a process to recycle a waste and post-consumer polymer, and the uses of the recycled polymer. |
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| Publication Number | Publication Date |
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| WO2022231418A1 true WO2022231418A1 (en) | 2022-11-03 |
| WO2022231418A9 WO2022231418A9 (en) | 2022-12-22 |
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| PCT/MX2022/050037 WO2022231418A1 (en) | 2021-04-29 | 2022-04-19 | Improved composition for restructuring the polymer chain of a waste and/or post-consumption polymer based on the modification of the shear rate, process for recycling a waste and/or post-consumption polymer, and uses of the recycled polymer |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19830913A1 (en) * | 1998-07-10 | 2000-01-13 | Finacor Anstalt Vaduz | Recycling and preparation of plastics involving heat treating and crosslinking |
| EP2537883A1 (en) * | 2011-06-20 | 2012-12-26 | Imerys Minerals Limited | Methods and compositions related to recycling polymer waste |
-
2021
- 2021-04-29 MX MX2021004979A patent/MX2021004979A/en unknown
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2022
- 2022-04-19 WO PCT/MX2022/050037 patent/WO2022231418A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19830913A1 (en) * | 1998-07-10 | 2000-01-13 | Finacor Anstalt Vaduz | Recycling and preparation of plastics involving heat treating and crosslinking |
| EP2537883A1 (en) * | 2011-06-20 | 2012-12-26 | Imerys Minerals Limited | Methods and compositions related to recycling polymer waste |
Non-Patent Citations (2)
| Title |
|---|
| INA VOLLMER, MICHAEL J. F. JENKS, MARK C. P. ROELANDS, ROBIN J. WHITE, TOON HARMELEN, PAUL WILD, GERARD P. LAAN, FLORIAN MEIRER, J: "Beyond Mechanical Recycling: Giving New Life to Plastic Waste", ANGEWANDTE CHEMIE INTERNATIONAL EDITION, VERLAG CHEMIE, vol. 59, no. 36, 1 September 2020 (2020-09-01), pages 15402 - 15423, XP055733114, ISSN: 1433-7851, DOI: 10.1002/anie.201915651 * |
| NAGUIB HAMDY M.; ZHANG XIU H.: "Advanced recycled polyester based on PET and oleic acid", POLYMER TESTING, ELSEVIER, AMSTERDAM, NL, vol. 69, 2 June 2018 (2018-06-02), AMSTERDAM, NL , pages 450 - 455, XP085427031, ISSN: 0142-9418, DOI: 10.1016/j.polymertesting.2018.05.049 * |
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| WO2022231418A9 (en) | 2022-12-22 |
| MX2021004979A (en) | 2022-10-31 |
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