EP3921355A1 - Rubber replacement articles and their use as footwear components - Google Patents

Rubber replacement articles and their use as footwear components

Info

Publication number
EP3921355A1
EP3921355A1 EP20709402.0A EP20709402A EP3921355A1 EP 3921355 A1 EP3921355 A1 EP 3921355A1 EP 20709402 A EP20709402 A EP 20709402A EP 3921355 A1 EP3921355 A1 EP 3921355A1
Authority
EP
European Patent Office
Prior art keywords
isocyanate
rubber replacement
weight
article according
replacement article
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20709402.0A
Other languages
German (de)
English (en)
French (fr)
Inventor
Edward R. Millero Jr.
Cynthia Kutchko
Benjamin Kabagambe
Christina Winters
Ronald J. KRALIC Jr.
Susan Fundy Donaldson
Jonathan P. Breon
Hongying Zhou
Xudong Feng
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PPG Industries Ohio Inc
Original Assignee
PPG Industries Ohio Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US16/266,894 external-priority patent/US20190168495A1/en
Application filed by PPG Industries Ohio Inc filed Critical PPG Industries Ohio Inc
Publication of EP3921355A1 publication Critical patent/EP3921355A1/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/74Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/75Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
    • C08G18/751Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
    • C08G18/752Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
    • C08G18/753Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
    • C08G18/755Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08Processes
    • C08G18/10Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00Footwear characterised by the material
    • A43B1/14Footwear characterised by the material made of plastics
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00Soles; Sole-and-heel integral units
    • A43B13/02Soles; Sole-and-heel integral units characterised by the material
    • A43B13/04Plastics, rubber or vulcanised fibre
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10Processes of additive manufacturing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00Processes of additive manufacturing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00Materials specially adapted for additive manufacturing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00Materials specially adapted for additive manufacturing
    • B33Y70/10Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00Products made by additive manufacturing
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08Processes
    • C08G18/16Catalysts
    • C08G18/22Catalysts containing metal compounds
    • C08G18/24Catalysts containing metal compounds of tin
    • C08G18/244Catalysts containing metal compounds of tin tin salts of carboxylic acids
    • C08G18/246Catalysts containing metal compounds of tin tin salts of carboxylic acids containing also tin-carbon bonds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30Low-molecular-weight compounds
    • C08G18/32Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3225Polyamines
    • C08G18/325Polyamines containing secondary or tertiary amino groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/48Polyethers
    • C08G18/4825Polyethers containing two hydroxy groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/48Polyethers
    • C08G18/4854Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/48Polyethers
    • C08G18/50Polyethers having heteroatoms other than oxygen
    • C08G18/5021Polyethers having heteroatoms other than oxygen having nitrogen
    • C08G18/5024Polyethers having heteroatoms other than oxygen having nitrogen containing primary and/or secondary amino groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/721Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
    • C08G18/725Combination of polyisocyanates of C08G18/78 with other polyisocyanates
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/73Polyisocyanates or polyisothiocyanates acyclic
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/77Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78Nitrogen
    • C08G18/7806Nitrogen containing -N-C=0 groups
    • C08G18/7818Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups
    • C08G18/7837Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups containing allophanate groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/77Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78Nitrogen
    • C08G18/79Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
    • C08G18/791Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
    • C08G18/792Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates
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    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/40Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
    • C08G59/4007Curing agents not provided for by the groups C08G59/42 - C08G59/66
    • C08G59/4064Curing agents not provided for by the groups C08G59/42 - C08G59/66 sulfur containing compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/12Powdering or granulating
    • C08J3/126Polymer particles coated by polymer, e.g. core shell structures
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/01Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/013Fillers, pigments or reinforcing additives
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/04Oxygen-containing compounds
    • C08K5/05Alcohols; Metal alcoholates
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/06Polyethene
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    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10Homopolymers or copolymers of propene
    • C08L23/12Polypropene
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    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/02Polyureas
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04Polyurethanes
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    • C08L75/00Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04Polyurethanes
    • C08L75/08Polyurethanes from polyethers
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    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02Non-macromolecular additives
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    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J163/00Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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    • C08G2410/00Soles
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    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/002Physical properties
    • C08K2201/005Additives being defined by their particle size in general

Definitions

  • the present invention is directed to rubber replacement articles prepared from curable compositions.
  • Curable compositions are often used as coatings and molded or extruded articles in a wide variety of industries.
  • industries may include but are not limited to landcraft such as cars, trucks, sport utility vehicles, motorcycles; watercraft such as boats, ships and submarines; aircraft such as airplanes and helicopters, industrial such as commercial equipment and structures including walls and roofs; construction such as construction vehicles and structures including walls and roofs, military such as military vehicles, and military structures including walls and roofs, for example, ammunition cases and battery enclosures; and the like.
  • Curable compositions can also be used as rubber replacements in footwear and other industries.
  • Footwear such as a shoe
  • the upper is the portion of the footwear designed to comfortably enclose the foot
  • the sole which typically includes an insole, optionally a midsole, and an outsole, is the portion of the footwear designed to provide traction, protection, cushioning, and/or a durable wear surface.
  • the upper is typically comprised of many different components, often made of different materials. Such materials include, for example, natural leather, synthetic leather, vinyl, and fabric such as nylon; other textiles may also be used. Many of the upper components, particularly the“toe”, can experience wear and/or abrasion during even normal use of the shoe.
  • Midsoles are typically made of foam, such as ethylene vinyl acetate (EVA) foam or polyurethane, such as TPU, foam. These materials compress resiliently under an applied load, such as the forces generated by the feet and legs during physical activity.
  • EVA ethylene vinyl acetate
  • TPU polyurethane
  • the bladders can be inflatable inserts made of polymeric materials that are resistantly compressible to provide additional cushioning to the wearer of the footwear. These bladders can be filled, for example, with a gel, water or other fluid, such as air or nitrogen.
  • Outsoles are often made of synthetic and/or natural rubbers, such as silica- filled rubber compositions. The outsole can also experience wear and/or abrasion during even normal use of a shoe.
  • references to any monomer(s) herein refers generally to a monomer that can be polymerized with another polymerizable compound such as another monomer or polymer. Unless otherwise indicated, it should be appreciated that once the monomer components react with one another to form the compound, the compound will comprise the residues of the monomer components.
  • the curable composition used to prepare the rubber replacement article of the present invention comprises (a) an isocyanate-functional prepolymer.
  • the isocyanate-functional prepolymer comprises (i) a reaction product of a polyisocyanate and a polyamine having primary and/or secondary amino groups; and/or (ii) a reaction product of a polyisocyanate and a polyol.
  • the phrase“and/or” when used in a list is meant to encompass alternative embodiments including each individual component in the list as well as any combination of components.
  • an “isocyanate functional prepolymer” refers to the reaction product of a polyisocyanate with polyamine and/or polyol, and optionally other isocyanate reactive groups such as thiol; the isocyanate functional prepolymer has at least one free isocyanate functional group (NCO). Combinations of isocyanate-functional prepolymers can be used according to the present invention.
  • the reaction mixture used to prepare the isocyanate-functional prepolymer is usually essentially free of any phosphorus- containing polyols.
  • the curable composition is also usually essentially free of any a phosphorus-containing polyols or reaction products thereof.
  • by“essentially free’’ is meant that a compound is not intentionally present in the composition; and if a compound is present in the composition, it is present incidentally in an amount less than 0.1 percent by weight, usually less than trace amounts.
  • the terms“cure” and “curable” refer to a composition wherein any crosslinkable components of the composition are or may be at least partially crosslinked via chemical reaction.
  • the crosslink density of the crosslinkable components i.e., the degree of crosslinking
  • the presence and degree of crosslinking, i.e., the crosslink density can be determined by a variety of methods, such as dynamic mechanical thermal analysis (DMTA) using a Polymer Laboratories MK III DMTA analyzer conducted under nitrogen.
  • DMTA dynamic mechanical thermal analysis
  • Suitable polyisocyanates for use in preparing the isocyanate-functional prepolymer can include one or more of those that are known in the art.
  • suitable polyisocyanates can include monomeric, dimeric, trimeric and/or oligomeric polyisocyanates.
  • the isocyanate can be C2-C20 linear, branched, cyclic, aromatic, aliphatic, or combinations thereof.
  • aromatic polyisocyanates include phenylene diisocyanate, toluene diisocyanate (TDI), xylene diisocyanate, 1 ,5-naphthalene diisocyanate, chlorophenylene 2,4-diisocyanate, bitoluene diisocyanate, dianisidine diisocyanate, tolidine diisocyanate, alkylated benzene diisocyanates, methylene-interrupted aromatic diisocyanates such as methylenediphenyl diisocyanate, 4,4'-isomer (MDI) including alkylated analogs such as 3, 3' -dimethyl-4, 4' -diphenylmethane diisocyanate, polymeric methylenediphenyl diisocyanate; mixed aralkyl diisocyanates such as tetramethylxylyl diisocyanates, OCN-C(CH3)2-C6H4C
  • Suitable materials include, without limitation, those available under the designation DESMODUR from Covestro LLC and include DESMODUR N 3200, DESMODUR N 3300, DESMODUR N 3400, DESMODUR N3900 and DESMODUR XP 2580.
  • TOLONATE HDT LV2 available from Vencorex Chemicals, is also suitable. Isocyanate functional acrylics can also be used.
  • polyisocyanate in an excess amount, often greater than 10 percent by weight, based on the total weight of resin solids in the isocyanate-functional prepolymer (a).
  • the excess polyisocyanate serves as a plasticizer in the curable composition.
  • the polyisocyanate is reacted with (i) a polyamine having primary and/or secondary amino groups, and/or (ii) a polyol.
  • the polyamines and polyols may be any of those known in the art, such as acrylic, polyester, polycarbonate, polybutadiene and/or polyether.
  • Polyethers are used most often. Suitable polyethers include polyoxyalkyleneamines having two or more primary and/or secondary amino groups attached to a backbone, derived, for example, from propylene oxide, ethylene oxide, butylene oxide or a mixture thereof.
  • Suitable polyethers having hydroxyl groups include polyether polyols such as polyalkylene ether polyols, which include those having the following structural formula:
  • substituent R1 is hydrogen or lower alkyl containing from 1 to 5 carbon atoms including mixed substituents, and n is typically from 2 to 6 and m is from 8 to 100 or higher. Included are poly(oxytetramethylene) glycols, poly(oxytetraethylene) glycols, poly(oxy-1 ,2-propylene) glycols, and poly(oxy-1 , 2-butylene) glycols.
  • polyether polyols formed from oxyalkylation of various polyols, for example, diols such as ethylene glycol, 1 ,6-hexanediol, Bisphenol A and the like, or other higher polyols such as trimethylolpropane, pentaerythritol, and the like.
  • Polyols of higher functionality which can be utilized as indicated can be made, for instance, by oxyalkylation of compounds such as sucrose or sorbitol.
  • One commonly utilized oxyalkylation method is reaction of a polyol with an alkylene oxide, for example, propylene or ethylene oxide, in the presence of an acidic or basic catalyst.
  • Particular polyether polyols include those sold under the names TERATHANE (e.g., TERATHANE 250, TERATHANE 650, TERATHANE 1000) and TERACOL, available from Invista Corporation, and POLYMEG, available from Lyondell Chemical Co. Also useful for the isocyanate-functional prepolymer are polyester polyols, butadiene diols and triols and saturated versions of same, chlorinated olefin polyols, hydrazides, and polyamide polyols as well as polyurethane polyols.
  • TERATHANE e.g., TERATHANE 250, TERATHANE 650, TERATHANE 1000
  • TERACOL e.g., TERATHANE 250, TERATHANE 650, TERATHANE 1000
  • POLYMEG available from Lyondell Chemical Co.
  • isocyanate-functional prepolymer are polyester polyols, butadiene diol
  • the isocyanate-functional prepolymer typically has a weight average molecular weight of 1 ,300 to 20,000, often 1 ,400 to 15,000, or 4,000 to 15,000, or 5,000 to 10,000.
  • the isocyanate-functional prepolymer usually has an isocyanate equivalent weight greater than 300, often 400 to 1 ,000.
  • the curable composition used to prepare the rubber replacement article of the present invention may further comprise a non-prepolymer isocyanate, such as a monomeric polyisocyanate, in combination with the isocyanate functional prepolymer.
  • the non-prepolymer isocyanate can be the same or different from the polyisocyanate used to form the isocyanate-functional prepolymer, and may comprise one or more of those disclosed above. If combinations of isocyanates are used, the isocyanates should be substantially compatible, for example; the isocyanate-functional prepolymers can be substantially compatible with the non-prepolymer isocyanate.
  • substantially compatible means the ability of a material to form a blend with other materials that is and will remain substantially homogeneous over time.
  • the mixture of polyamines may include, for example, polyamines having at least two functional groups such as di-, tri-, or higher functional amines; and combinations thereof.
  • the polyamines may be aromatic or aliphatic such as cycloaliphatic, or mixtures thereof.
  • Suitable primary polyamines include ethylene diamine, 1 ,2-diaminopropane, 1 ,4-diaminobutane, 1 ,3-diaminopentane (DYTEK EP, Invista), 1 ,6-diaminohexane, 2-methyl-1 , 5-pentane diamine (DYTEK A, Invista), 2,5- diamino-2,5-dimethylhexane, 2,2,4- and/or 2,4, 4-trimethyl-1 ,6-diamino-hexane, 1 ,1 1 - diaminoundecane, 1 ,12-diaminododecane, 1 ,3- and/or 1 ,4-cyclohexane diamine, 1 - amino-3,3,5-trimethyl-5-aminomethyl-cyclohexane (isophorone diamine or IPDA), 2,4- and/or 2,6-hexahydrotoluylene diamine
  • Secondary cycloaliphatic diamines may also be used in the present invention.
  • Suitable cycloaliphatic diamines include JEFFLINK 754 (Huntsman Corporation), CLEARLINK 1000 (Dorf-Ketal Chemicals, LLC), and aspartic ester functional amines, such as those available under the name DESMOPHEN such as DESMOPHEN NH 1420, and DESMOPHEN NH 1520 (Covestro LLC).
  • DESMOPHEN such as DESMOPHEN NH 1420
  • DESMOPHEN NH 1520 Covestro LLC
  • Other suitable secondary amines that can be used in the present invention include the reaction products of materials comprising primary amine functionality, such as those described herein, with acrylonitrile.
  • the secondary amine can be the reaction product of 4,4'-diaminodicyclohexylmethane and acrylonitrile.
  • the secondary amine can be the reaction product of isophorone diamine and acrylonitrile, such as POLYCLEAR 136 (available from BASF/Hansen Group LLC).
  • POLYCLEAR 136 available from BASF/Hansen Group LLC.
  • the aliphatic secondary diamine often has an amine equivalent weight of up to 200, more often up to 162.
  • the curing agent (b) comprises 5 to 50 percent by weight of an aliphatic polyamine having an amine equivalent weight of 125 to 250, and 50 to 95 percent by weight of an aliphatic polyamine having an amine equivalent weight of 900 to 2,500.
  • the curing agent comprises 20 percent by weight CLEARLINK 1000, with an amine equivalent weight of about 161 , and 80 percent by weight JEFFAMINE T-5000, a trifunctional aliphatic amine that has an amine equivalent weight of about 1902.
  • the curing agent (b) often comprises 1 to 20 percent by weight, such as 1.5 to 15 percent by weight, or 2 to 12.5 percent by weight, or 3 to 10 percent by weight by weight of said non-cyclic polyamine, based on the total weight of polyamines in the curable composition.
  • the curing agent often comprises about 8 percent by weight DESMOPHEN NH 1220, a non-cyclic amine with an amine equivalent weight of about 234, about 8 percent by weight CLEARLINK 1000, a cycloaliphatic amine with an amine equivalent weight of about 161 , and about 84 percent by weight JEFFAMINE T-5000, a trifunctional aliphatic amine that has an amine equivalent weight of about 1902.
  • the curable composition used to prepare the rubber replacement article of the present invention may comprise one or more additional ingredients.
  • Additional ingredients may include, for example, an adhesion promoter such as amine functional materials, aminosilanes and the like, halogenated polyolefin (e. g., chlorinated polyolefin) or organic titanate or zirconate.
  • an adhesion promoter such as amine functional materials, aminosilanes and the like, halogenated polyolefin (e. g., chlorinated polyolefin) or organic titanate or zirconate.
  • a tertiary amine comprising 1 ,5- diazabicyclo[4.3.0]non-5-ene, 1 ,8-diazabicyclo[5.4.0]undec-7-ene, and/or 1 ,4- diazabicyclo[2.2.2]octane is an exemplary amine functional material suitable as an adhesion promoter.
  • the colorant can be in the form of a dispersion including a nanoparticle dispersion.
  • Nanoparticle dispersions can include one or more highly dispersed nanoparticle colorants and/or colorant particles that produce a desired visible color and/or opacity and/or visual effect.
  • Nanoparticle dispersions can include colorants such as pigments or dyes having a particle size of less than 150 nm, such as less than 70 nm, or less than 30 nm. Nanoparticles can be produced by milling stock organic and/or inorganic pigments with grinding media having a particle size of less than 0.5 mm. Example nanoparticle dispersions and methods for making them are identified in U.S. Patent No. 6,875,800 B2.
  • the composition may be prepared using a two-component mixing device.
  • isocyanate and amine are added to a high pressure impingement mixing device.
  • the isocyanate is added to the“A-side” and amine is added to the“B-side”.
  • the A- and B- side streams are impinged upon each other and immediately sprayed onto at least a portion of an uncoated or coated substrate.
  • the isocyanate and the amine react to produce a coating composition that is cured upon application to the uncoated or coated substrate.
  • the A- and/or B-side can also be heated prior to application, such as to a temperature of ⁇ 70°C, such as 60°C.
  • a commercially available mixing device can be used such as those described in Paragraphs [0037] and [0038] of United States Patent Publication Number 2007/0160851.
  • the isocyanate-functional prepolymer may be provided as a first component by a first pump to a mixer and the curing agent may be provided as a second component by a second pump to said mixer, to provide a curable composition, which may then be deposited/extruded through a nozzle connected to the mixer.
  • the abrasion resistant additive may be included in the first or the second component or may be to the mixture formed in the mixer. Further, if the additive manufacturing process does not contain heated lines, the isocyan ate -functional prepolymer should be liquid.
  • the coated substrate Upon application of the curable composition to a substrate as a coating and after curing to form a coated substrate, the coated substrate demonstrates a coating loss of less than 0.33 cm 3 after being subjected to 1 ,000 cycles of a TABER Abrasion Test using S-42 sandpaper strips and two 1 ,000 gram weights, from Taber Industries.
  • the TABER Abrasion Test is conducted as described in the Examples below.
  • the rubber replacement articles of the present invention may be used for any application where rubber is conventionally used; for example, vehicle components such as automotive parts and accessories including bumpers, fenders, hoods, doors, panels, trim, etc.; athletic equipment such as specialized floor surfaces and running tracks, components of balls (cores, surface coatings, etc., for basketballs, baseballs, golf balls, lacrosse balls and the like); protective equipment for sports and other applications such as chest protectors and helmet components, stick components such as grips and/or butts for ice hockey, field hockey, lacrosse, etc., and the like.
  • vehicle components such as automotive parts and accessories including bumpers, fenders, hoods, doors, panels, trim, etc.
  • athletic equipment such as specialized floor surfaces and running tracks, components of balls (cores, surface coatings, etc., for basketballs, baseballs, golf balls, lacrosse balls and the like)
  • protective equipment for sports and other applications such as chest protectors and helmet components, stick components such as grips and/or butts for ice hockey, field
  • Dry film thicknesses of the footwear components may range from 20 to 1 ,000 mils (508 to 25,400 microns), or from 40 to 150 mils (1 ,016 to 3,810 microns), or from 60 to 100 mils (1 ,524-2,540 microns), or from 500 to 750 mils (12,700 to 19,050 microns). It will be appreciated that these layers are relatively “thick”.
  • the compositions of the present invention can also be applied as much thinner layers as well, such as 0.1 to less than 15 mils (2.54 to less than 381 microns), or 0.1 to 10 (2.54 to 254 microns), or 0.5 to 3 (12.7 to 76.2 microns), or 1 to 2 mils (25.4 to 50.8 microns).
  • the wear resistance observed in footwear components according to the present invention is particularly relevant in the tread and other portions of the shoe outsole, but is also particularly relevant in the toe of the shoes, especially shoes used for tennis, where the toe is often dragged during play such as during service. It is often the case that the wearer can abrade the toe such that the aesthetics or even the shoe itself are impaired and ultimately such that a hole can be worn through the toe.
  • the footwear components of the present invention typically demonstrate a material loss of less than 0.33 cm 3 after being subjected to 1 ,000 cycles of a TABER Abrasion Test using S-42 sandpaper strips and two 1 ,000 gram weights.
  • a rubber replacement article prepared from a curable composition comprising:
  • an isocyanate-functional prepolymer wherein the isocyanate-functional prepolymer comprises (i) a reaction product of a polyisocyanate and a polyamine having primary and/or secondary amino groups; and/or (ii) a reaction product of a polyisocyanate and a polyol;
  • a curing agent comprising a mixture of polyamines, wherein at least one polyamine in the curing agent has an amine equivalent weight of 125 to 250;
  • an abrasion resistant additive comprising organic particles, wherein the organic particles demonstrate a volume average particle size of at least 5 microns.
  • the curing agent comprises 5 to 50 percent by weight of an aliphatic polyamine having an amine equivalent weight of 125 to 250, and 50 to 95 percent by weight of an aliphatic polyamine having an amine equivalent weight of 900 to 2,500.
  • organic particles comprise polyethylene, polypropylene, and/or saturated, linear primary alcohols with an average carbon chain length of C20 to C50.
  • the rubber replacement article according to any of aspects 9 to 1 1 wherein the adhesive layer comprises an adhesion promoter comprising an organic titanate or zirconate.
  • the adhesive layer comprises an adhesion promoter comprising an organic titanate or zirconate.
  • said rubber replacement article is prepared by 3D-printing the article by forming at least one portion or cross-sectional layer of the article by depositing at least two co-reactive components onto a substrate until the article is fully formed, wherein a first co-reactive component comprises the isocyanate-functional prepolymer (a) and a second co-reactive component comprises the curing agent (b).
  • a method of preparing the rubber replacement article according to any of aspects 1 to 12 by 3D-printing comprising:
  • step (c) repeating step (b) until the article is fully formed
  • the final material had a measured isocyanate equivalent weight of 505.8 as measured by ASTM D2572 “Standard Test Method for Isocyanate Groups in Urethane Materials or Prepolymers” and a weight average Molecular Weight (Mw) of -5,300 as measured by Gel Permeation Chromatography versus a polystyrene standard.
  • An isocyanate-functional prepolymer was prepared from the following ingredients as described below:
  • the final material had a measured isocyanate equivalent weight of 1025 as measured by ASTM D2572“Standard Test Method for Isocyanate Groups in Urethane Materials or Prepolymers” and a weight average Molecular Weight (Mw) of ⁇ 6,800 as measured by Gel Permeation Chromatography versus a polystyrene standard.
  • a total of 850 grams of isophorone diisocyanate was placed in a suitable reaction vessel equipped with a stirrer, temperature probe, a condenser and a nitrogen inlet tube and blanketed with nitrogen gas.
  • room temperature 22°C
  • 2,346 grams of JEFFAMINE D2000 was added over 70 minutes, during which time the temperature increased to about 57°C.
  • 0.64 grams of dibutyltin dilaurate was added and the mixture held for 15 minutes after which the mixture was heated to 70°C. The mixture was held at this temperature for 1.25 hour, during which time the isocyanate equivalent weight reached about 650 grams per equivalent.
  • the final material had a measured isocyanate equivalent weight of 653 as measured by ASTM D2572“Standard Test Method for Isocyanate Groups in Urethane Materials or Prepolymers” and a weight average Molecular Weight (Mw) of -5,300 as measured by Gel Permeation Chromatography versus a polystyrene standard.
  • An isocyanate-functional prepolymer was prepared from the following ingredients as described below:
  • a total of 760 grams of isophorone diisocyanate was placed in a suitable reaction vessel equipped with a stirrer, temperature probe, a condenser and a nitrogen inlet tube and blanketed with nitrogen gas.
  • room temperature (22°C) 1 ,356.4 grams of JEFFAMINE D2000 and was added over 70 minutes, during which time the temperature increased to about 56°C.
  • 0.42 grams of dibutyltin dilaurate was added and the mixture held for 15 minutes after which the mixture was heated to 70°C. The mixture was held at this temperature for 2 hours, during which time the isocyanate equivalent weight reached about 404 grams per equivalent.
  • the final material had a measured isocyanate equivalent weight of 403 as measured by ASTM D2572“Standard Test Method for Isocyanate Groups in Urethane Materials or Prepolymers” and a weight average Molecular Weight (Mw) of -4,600 as measured by Gel Permeation Chromatography versus a polystyrene standard.
  • An isocyanate-functional prepolymer was prepared from the following ingredients as described below:
  • a total of 575 grams of isophorone diisocyanate was placed in a suitable reaction vessel equipped with a stirrer, temperature probe, a condenser and a nitrogen inlet tube and blanketed with nitrogen gas.
  • room temperature (22°C) 1 ,935.2 grams of JEFFAMINE D2000 and was added over 60 minutes, during which time the temperature increased to about 57°C.
  • 0.51 grams of dibutyltin dilaurate was added and the mixture held for 15 minutes after which the mixture was heated to 70°C. The mixture was held at this temperature for 1.5 hours, during which time the isocyanate equivalent weight reached about 865 grams per equivalent.
  • An isocyanate-functional prepolymer was prepared from the following ingredients as described below:
  • the temperature was reduced to 80°C and 353.0g of Desmodur XP2580 and 1059.3g of Tolonate HDT LV2 were added and the temperature further reduced to 60°C. After 1 hour, the material had a measured isocyanate equivalent weight of about 259 grams per equivalent.
  • Examples 1 and 5 are control examples with identical compositions (different batches), and contain no abrasive component like that used in the compositions of the present invention.
  • Examples 2-4 are comparative; they contain inorganic particles as abrasion resistant additive, but no organic particles.
  • Examples 6 and 7 demonstrate compositions prepared in accordance with the present invention. Curable compositions were prepared from the following ingredients:
  • Microgrit WCA 3 is alumina powder with a volume average particle size of 3 m ⁇ h
  • Microgrit WA 360TO is alumina powder with a volume average particle size of 36 mhi
  • Microgrit WA 180TO is alumina powder with a volume average particle size of 90 mih.
  • a side A total of 100 grams of isocyanate functional prepolymer was used. In some cases one or more pre-polymers were mixed to achieve the desired properties. The contents were kept at 60°C prior to application in order to achieve spraying viscosities.
  • B side The amine component was prepared from the ingredients listed in the above examples. In example 1 all the ingredients are mixed together with zircoa beads and ground in LAU mixer for 3 hours. In examples 2-7, a pre-paste was mixed using JEFFAMINE T5000 and T1O2 in the desired ratios and ground in the LAU using zircoa beads for 3 hours. The paste was filtered and used to bring in the desired levels of T1O2 and JEFFAMINE T5000 levels with the rest of the resin components. Alumina or PETROLITE 5000 T6 particles were then added and mixed using a Cowles blade.
  • Polyurea coating compositions of the invention were prepared by combining an isocyanate functional “A” side component and an amine functional “B” side component in the following manner:
  • Free films of the polyurea coating compositions were produced by charging the A and B sides in a double barreled syringe equipped with a static mix tube and a pneumatic applicator gun (available from Plas-Pak Industries) and injecting the components at a 1 : 1 ratio onto a polyethylene sheet and then immediately drawn down with Gardco Adjustable Micrometer Film Applicator at approximately 60-80 mils. Before testing the film properties (Young’s Modulus, elongation, and glass transition temperature), the films rested for 1 day at 104°F.
  • Modulus and elongation properties were measured using an INSTRON 4443 with a pull rate of 50mm/min. at room temperature (23°C).
  • the glass transition temperature was measured using TA Instruments 2980 DMA Dynamic Mechanical Analyzer.
  • the DMA test parameters included tensile film mode, 20pm amplitude, 1 Hz frequency, 40cNm clamping force, and heating rate of 3°C/min.
  • Hardness values were determined by charging the A and B sides in a double barreled syringe equipped with a static mix tube and a pneumatic applicator gun and injecting the components at a 1 : 1 ratio into a mold to form a round “puck” approximately 6 cm in diameter and 0.2 cm in thickness. The puck was tested after resting for 1 day at 104°F. The hardness of the polyurea puck was measured with a Shore D Durometer (Pacific Transducer Corp. Model 212) at ambient conditions. [0092] TABER Abrasion test: Coatings were applied onto primed panels by drawdown method and cut to 4” x 4” pieces with a hole punched in the center.
  • An isocyanate-functional polymer was prepared from the following ingredients as described below:

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