POWDERY THERMOPLASTIC ELASTOMER COMPOSITION AND ARTICLES OBTAINED BY MOLDING SAME

摘要

A powdery thermoplastic elastomer composition having a sphere-equivalent average particle diameter of at most 1.2 mm and a specific bulk gravity of at least 0.38, and comprising: (a) 100 pts.wt. of a polyolefin resin; (b) 5 to 250 pts.wt. of a hydrogenated conjugated diene copolymer having a degree of hydrogenation of at least 70 %, obtained by hydrogenating a conjugated diene polymer or a conjugated diene/vinyl aromatic compound random copolymer whose vinyl aromatic compound unit content is at most 25 % by weight; and (c) 0 to 500 pts.wt. of an ethylene/ PROPORTIONAL -olefin copolymer rubber. Powder molding of the composition can provide articles excellent in appearance, flexibility, etc. and resistant to whitening even when folded.