Patent ID: 8399104

Claim:
A composite molded article comprising a molded article of an olefinic thermoplastic elastomer (A) and a molded article of an olefinic thermoplastic elastomer (B) fused to each other, wherein the molded article of olefinic thermoplastic elastomer (A) contains an olefinic thermoplastic elastomer composition (A′) having less than 5% by weight of a cyclohexane-soluble(s) and less than 35% of a compression set (JIS K6262, 70° C., 22 hours), and the molded article of olefinic thermoplastic elastomer (B) contains an olefinic thermoplastic elastomer composition (B′) obtained by blending 100 parts by weight of an ethylene/α-olefinic/non-conjugated diene copolymer rubber (b-1) containing 6 to 15 wt % of a non-conjugated diene unit, with 40 to 150 parts by weight of a mineral oil softener (b-2), 5 to 150 parts by weight of an olefin resin (b-3), and 0.01 to 20 parts by weight of a crosslinking agent (b-4) and subsequent dynamic heat treatment thereof, wherein the olefinic thermoplastic elastomer composition (A′) is produced by heat-treating, under kneading, an olefin resin and an ethylene/α-olefin copolymer rubber, with a crosslinking agent, and the content of cyclohexane-soluble(s) refers to the percentage by weight of cyclohexane-soluble(s) derived from the starting material ethylene/α-olefin copolymer rubber in the olefinic thermoplastic elastomer composition (A′), assuming that the weight of the starting material ethylene/α-olefin copolymer rubber used in the production of the olefinic thermoplastic elastomer composition (A′) is 100% by weight.