US 7,459,212 B2
	Layered thermoplastic-resin-elastomer/rubber product with improved weatherability and pneumatic tire made with the same
Kazuto Yamakawa, Hiratsuka (Japan); Masahiro Ikawa, Hiratsuka (Japan); Daisuke Kanenari, Hiratsuka (Japan); and Yuichi Hara, Hiratsuka (Japan)
Assigned to The Yokohama Rubber Co., Ltd., Tokyo (Japan)
Appl. No. 10/547,344 PCT Filed Dec. 24, 2004, PCT No. PCT/JP2004/019785 § 371(c)(1), (2), (4) Date Sep. 01, 2005, PCT Pub. No. WO2005/063482, PCT Pub. Date Jul. 14, 2005.
Claims priority of application No. 2003-430919 (JP), filed on Dec. 25, 2003.
Prior Publication US 2006/0182976 A1, Aug. 17, 2006
Int. Cl. B32B 25/08 (2006.01); B32B 25/14 (2006.01); B32B 25/16 (2006.01); B32B 25/18 (2006.01); B32B 27/18 (2006.01); B60C 5/00 (2006.01)

U.S. Cl. 428—421  [428/447; 428/473.5; 428/474.4; 428/480; 428/521; 428/522; 152/510]

8 Claims

1. 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.