Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B27/00—Layered products comprising a layer of synthetic resin
  • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
  • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B27/00—Layered products comprising a layer of synthetic resin
  • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
  • C08L23/02—Compositions 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
  • C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
  • C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
  • C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
  • C09J123/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2323/00—Polyalkenes
  • B32B2323/10—Polypropylene
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2597/00—Tubular articles, e.g. hoses, pipes
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
  • C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
  • C08L2666/04—Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L57/00—Compositions of unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • C08L57/02—Copolymers of mineral oil hydrocarbons

Definitions

• Natural and synthetic rubbers and elastomers are used extensively in the production of multi-layer articles such as V-belts, hoses, sheets such as those used for roofing, mats and tires
• materials that are used are chloroprene, natural rubbers and synthetic rubbers such as neoprene, butyl rubber, styrene butadiene rubbers and polydiene rubbers
• the rubber compounds are produced by calendaring and mixing to thoroughly disperse additives such as fillers, pigments, antioxidants and vulcanising agents throughout the rubber
• the final articles are produced by forming layers, laying up and vulcanising or by co-extrusion and subsequent vulcanisation
• Typical manufacturing processes for V-belts comprise producing laminated strips of the belting material, usually a laminar structure, laying the strips around a drum and then vulcanising It is therefore important that the layers in the laminar structure have sufficient green tack to adhere to each other and to firmly bond the two ends of the strips together Similarly
• the ⁇ -olefin is generally incorporated into the ethylene containing elastomeric polymer in an amount of about 15 to about 85 wt %, more preferably at about 15 to about 70 wt % and even more preferably about 20 to about 60 wt %.
• Illustrative of such substituted ⁇ -olefins are compounds of the formula
• the molecular weight range of the ethylene containing polymers as measured by NMR will typically range from 5,000 to 5,000,000 weight average molecular weight (Mw), more typically from 10,000 to 500,000 Mw, most typically 15,000 to 350,000 Mw Mooney viscosity (ML 1+4 , 125°C) will typically range from 10 up to 90, more typically 20 to 75
• the feedstream includes 50 wt % to 85 wt % of the C 9 monomers and 50 wt % to 15 wt % of a co-feed including at least one member selected form the group consisting of pure monomer, C 5 monomers, and terpenes
• the layers used in the present invention can also contain other resins, such as rosin esters derived from tall oil, gum rosin and polyterpenes, which may be incorporated during the compounding operation
• process oil ethylene- ⁇ -olefin oligomer, paraffin wax, liquid paraffin, white oil, petrolatum, petroleum, sultanate, gilsonite, asphalt, diene oligomer (including hydrogenated one), vegetable oil softener (caster oil, cotton seed oil, rapeseed oil, palm oil, peanut oil, pine oil, tall oil, etc), rubber substitute (vulcanised oil), fatty acid, fatty acid salt, and fatty acid ester. They may be used alone or in combination with one another.
• the additives include reinforcing material and filler, such as carbon black (channel black, furnace black, thermal black or lamp black, acetylene black etc), silica (white carbon, etc), basic magnesium carbonate, calcium carbonate (e.g., light calcium carbonate, ground calcium carbonate, and surface-treated calcium carbonate), magnesium silicate (e.g., ultrafine magnesium silicate), clay, talc, wollastonite, zeolite, diatomaceous earth, silica sand, alumina sol, aluminium hydroxide, aluminium sulphate, barium sulphate, calcium sulphate, lithopone, molybdenum disulphide, rubber power, shellac, cork powder, and cellulose powder.
• Adhesion promoters such as zinc methacrylate may be included where the rubber layers are required to stick to other materials such as the cords used in V-belt manufacture. These additives may be used alone or in commination with one another.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Medicinal Chemistry (AREA)
• Polymers & Plastics (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Laminated Bodies (AREA)
• Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

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Applications Claiming Priority (4)

Publications (3)

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Family Applications (1)

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Citations (4)

• 2001
  • 2001-01-12 WO PCT/US2001/001157 patent/WO2001051280A2/en not_active Application Discontinuation
  • 2001-01-12 MX MXPA02006907A patent/MXPA02006907A/es unknown
  • 2001-01-12 BR BR0107623-0A patent/BR0107623A/pt not_active Application Discontinuation
  • 2001-01-12 JP JP2001551682A patent/JP2004500997A/ja not_active Withdrawn
  • 2001-01-12 EP EP01942270A patent/EP1259574A2/en not_active Withdrawn
  • 2001-01-12 CN CN01803679A patent/CN1419592A/zh active Pending

Patent Citations (4)

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