摘要 |
PURPOSE:To obtain the title band excellent in transparency and strengths by extruding a specified crystalline PP resin composition and uniaxially orienting the extrudate. CONSTITUTION:A crystalline PP resin composition of a melt flow rate of 0.5-5g/10min, obtained by mixing 100 pts.wt. propylene polymer (e.g. crystalline PP) with 5-20 pts.wt. aliphatic or alicyclic petroleum resin (e.g. Alcon P-125), is extruded, and the extrudate is uniaxtally oriented. |