| 摘要 |
PURPOSE:To provide a thermoplastic polymer composition containing a crystalline polyolefin, a polycarbonate and a styrene-ethylene.propylene block copolymer and having excellent impact resistance surface-peeling resistance, chemical resistance and moldability. CONSTITUTION:The objective thermoplastic polymer composition is produced by compounding (A) 95-5wt.% (preferably 90-10wt.%) of a crystalline polyolefin (preferably a polypropylene having a weight-average mol.wt. of 30,000-300,000) with (B) 5-95wt.% (preferably 10-90wt.%) of a polycarbonate (preferably having a weight-average mol.wt. of 10,000-100,000, especially 20,000-50,000) and (C) 5-100pts.wt., preferably 10-50pts.wt., especially 15-40 pts.wt. (based on 100pts.wt. of A+B) of a styrene-ethylene.propylene block copolymer having a styrene/ethylene.propylene weight ratio of 15/85-70/30, preferably 20/80-50/50 and a weight-average mol.wt. of 10,000-1,000,000. |
