Elastomeric composition
Patent 4373063 Issued on February 8, 1983. Estimated Expiration Date: 
April 24, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 24, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesPolar resins having improved characteristics by blending with EPM and EPDM polymers Hot-melt pressure sensitive adhesive compound Patent #: 4284541 InventorsAssigneeApplicationNo. 06/256875 filed on 04/24/1981US Classes:525/64, Solid graft or graft-type copolymer derived from ethylenic reactants only525/66, With solid polymer derived from at least one nitrogen-containing reactant wherein at least one of the reactants forming the solid polymer is saturated; or with SPFI wherein at least one of the necessary ingredients contains a nitrogen atom or with a reaction product thereof; or with nitrogen-containing SICP525/71, Contains two or more graft or graft-type copolymers or a graft or a graft type copolymer and at least one block or block-type copolymer525/80, Mixture contains solid polymer derived from reactant containing carboxylic acid ester group525/84Polymer substrate derived from hydrocarbon reactants onlyExaminersPrimary: Lieberman, PaulAttorney, Agent or FirmInternational ClassesC08L 51/00 (20060101)C08L 51/04 (20060101) C08L 75/04 (20060101) C08L 67/00 (20060101) C08L 67/02 (20060101) C08L 75/00 (20060101) Foreign Application Priority Data1980-04-28 JPAbstractAn elastomeric composition having excellent properties such as excellent heat aging characteristics, dimensional stability, processability, fabrication qualities, hydrolytic resistance, yellowing resistance, and weatherability, which comprises(A) a graft polymer of a rubbery copolymer consisting predominantly ethylene-propylene with at least two groups of the monomers selected from an aromatic vinyl compound, an ethylenically unsaturated nitrile and a methacrylic acid ester, and(B) a polymer selected from a thermoplastic polyurethane, an aromatic vinyl-conjugated diene block copolymer, a polyester elastomer and an olefinic elastomer, in the weight ratio of 10:90 to 90:10.Field of SearchWith solid polymer derived from at least one nitrogen-containing reactant wherein at least one of the reactants forming the solid polymer is saturated; or with SPFI wherein at least one of the necessary ingredients contains a nitrogen atom or with a reaction product thereof; or with nitrogen-containing SICPSolid graft or graft-type copolymer derived from ethylenic reactants only Contains two or more graft or graft-type copolymers or a graft or a graft type copolymer and at least one block or block-type copolymer Mixture contains solid polymer derived from reactant containing carboxylic acid ester group Polymer substrate derived from hydrocarbon reactants only | |
