Layered thermoplastic-resin-elastomer/rubber product with improved weatherability and pneumatic tire made with the same
AssigneeThe Yokohama Rubber Co., Ltd.
InventorsKazuto Yamakawa, Masahiro Ikawa, Daisuke Kanenari, Yuichi Hara
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Abstract
A thermoplastic resin elastomer/rubber laminate comprising a rubber layer containing 100 parts by weight of a rubber and 0.1-20 parts by weight of an antioxidant preblended thereto and a thermoplastic resin elastomer composition layer, obtained by laminating at least two layers of the rubber layer and the thermoplastic resin elastomer composition layer followed by heating and pressing, whereby the antioxidant migrates from the rubber layer to the thermoplastic resin elastomer composition layer to improve the weathering resistance as well as a pneumatic tire using the same as an inner liner.
Claims8
A thermoplastic elastomer/rubber laminate comprising at least one rubber layer containing 100 parts by weight of a rubber and 0.1-20 parts by weight of an antioxidant preblended thereto and at least one thermoplastic elastomer composition layer, obtained by laminating at least two layers of the at least one rubber layer and the at least one thermoplastic elastomer composition layer, followed by heating and pressing, whereby the antioxidant migrates from the rubber layer to the thermoplastic elastomer composition layer to improve the weathering resistance, said antioxidant being selected from the group consisting of N-phenyl-N′-(1,3-dimethyl-butyl)-p-phenylenediamine and N-phenyl N′-isopropyl-p-phenylenediamine and said thermoplastic elastomer composition comprising (A) at least one resin selected from the group consisting of polyamide-based resins, polyester-based resins, polynitrile-based resins, polymethacrylate resins, vinyl acetate-based resins, polyvinyl alcohol, polyvinylidene chloride, polyvinyl chloride, fluorine-based resins and imide-based resins and (B) at least one elastomer selected from the group consisting of diene-based rubbers and the hydrogenates thereof, acryl rubbers, halogen-containing rubbers, silicone rubbers, sulfur-containing rubbers, fluorine rubbers and thermoplastic elastomers.
Dependencies are inferred from the claim text.