Patent ID: 6982293

Claim:
An olefin thermoplastic elastomer comprising domains of a crosslinked olefin copolymer rubber dispersed in an olefin resin, wherein said domains have an average particle size of from 0.1 to 5 μm and the olefin resin is dispersed in an average particle size of from 0.01 to 0.5 μm in at least a part of the domains, and wherein the following formulae (I) to (III) are satisfied: Y≦− 2X+350 (I) X<95 (II) Z≦150 (III) wherein: X is the JIS A hardness of a molded product measured in accordance with JIS K6253; Y is the change in the weight in % of a molded product measured based on JIS K6258 using IRM903 oil at 120° C.; and Z is the number of granular structures on an 250 mm×1,500 mm extruded sheet surface.