| 摘要 |
Blends of polypropylene(I) 100, random ethylene-propene copolymer(II) contg. 30-85 mol.% propens(III) units and 10 % of boiling cyclohexane-sol. fractions and having microisotacticity (based on III traid)>0.8 1-3, and prolyethylene 0-30 parts have good flexural modulus and impact strength. A blend of 100 parts I and 17.6 parts 39:61 II has melt index 9.0, flexural modulus 12.5x103 kg/cm2, falling-dart impact strength at 0≦̸C 190 kg-cm, and gloss 72%.
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