Patent Number: 6,166,143

Title: Thermoplastic elastomer composition, hose comprising thermoplastic elastomer composition and process of production thereof

Abstract: A thermoplastic elastomer composition containing a component (A) (thermoplastic polyolefin resin), component (B) (epoxy-group-containing ethylene acrylic ester copolymer rubber), and component (C) (acid-modified polyolefin resin) comprising a continuous phase of the component (A) in which the component (B) is dispersed as a dispersed phase and is cross-linked by a peroxide; a thermoplastic elastomer composition comprising a continuous phase of a thermoplastic polyolefin resin (A) and a dispersed phase of an epoxy-group-containing ethylene-acrylic ester copolymer rubber component (B) and acrylonitrile butadiene rubber component (C), which is dynamically cross-linked; and a hose having an inner tube, at least one reinforcing layer, and an outer cover, wherein the inner tube and the outer cover contain a thermoplastic elastomer composition comprised of a thermoplastic resin in which is blended an at least partially cross-linked elastomer component, the reinforcing layer is a brass-plated wire, and the reinforcing layer and inner tube and the reinforcing layer and outer cover have between them a maleic-acid-modified polyolefin thermoplastic resin.

Inventors: Watanabe; Jiro (Hiratsuka, JP), Hara; Yuichi (Hiratsuka, JP), Irii; Daisuke (Hiratsuka, JP), Satoh; Takashi (Hiratsuka, JP), Kawaguchi; Gou (Hiratsuka, JP), Yamauchi; Shigeru (Hiratsuka, JP), Hatanaka; Susumu (Hiratsuka, JP), Kuroda; Noriaki (Kawasaki, JP)

Assignee: The Yokohama Rubber Co., Ltd.

International Classification: C08L 23/02 (20060101); C08L 23/00 (20060101); F16L 11/08 (20060101); C08L 037/00 (); C08L 051/06 (); B32B 001/08 ()

Expiration Date: 12/26/2017