| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermoplastic elastomer excellent in flexibility, weather resistance, heat resistance, low temperature characteristics, strength and molding processability, and an elastomer member consisting of the above composition, not requiring surface coating and excellent in scratch resistance. SOLUTION: This thermoplastic elastomer composition consists of the following (A), (B) and (C). (A) 100 pts.wt. polyurethane elastomer. (B) 10-900 pt.wt. polypropylene mixture of (B-1) 10-60 wt.% homopolymer or copolymer of polypropylene, (B-2) 40-90 wt.% ethylene-propylene (-α-olefin) copolymer (provided that it has <=2μm mean dispersed particle diameter of ethylene-propylene- based copolymer rubber in the above mixture and the above mixture has specific bending modulus, Shore D hardness and melt flow rate). (C) 3-100 pt.wt. modified polymer having carboxylic acid group, epoxy group or the like in its molecule. |
