| abstract |
(57) [Summary] [Object] To provide a thermoplastic elastomer composition having excellent flexibility and fluidity without impairing mechanical strength and elastic recovery. [Structure] Olefin copolymer rubber, specific hydrogenated diene copolymer, olefin resin, and mineral oil softener are melt-mixed in a specific ratio, and dynamics depending on the presence of a crosslinking agent for rubber. A thermoplastic elastomer composition obtained by heat treatment. |