| 摘要 |
PURPOSE:Titled composition which can form sheets having excellent impact resistance and being resistant to hazing, prepared by blending a propylene-ethylene block copolymer with a high-density polyethylene. CONSTITUTION:The composition for polyolefin type sheets is prepared by blending 65-95wt% of (a) an ethylene-propylene block copolymer, ethylene content 3- 25wt%, heat-absorption peak ranges (values when measured on a differential calorimeter) 118-130 deg.C and 158-166 deg.C, isotactic index at least 90wt%, with 5-35wt% of (b) a high-density polyethylene, density >=0.942g/cm<3>. Also, to the resulting composition there may be added 3-150wt% of a low-density polyethylene and/or an ethylene-propylene rubber. |
