POLY PROPYLENE RESIN COMPOSITION

摘要

Propylene resin compn. having a high stiffness, high impact resistance, and high plastic fluidity was described. The compn. contains 80 - 60 wt.% of crystaalline ethylene-propylene copolymer (melt flow index > 8, I.V. at 135≦̸C in tetralin soln., 1.2 - 20) contg. ethylene 11 - 30 wt.%, insol. boiling n-heptane up to 75 wt.% of polypropylene, 5 - 35 wt.% of ethylene-propylene copolymer(mooney viscosity at 100≦̸C, 20 - 200) contg. 20 - 50 wt.% of propylene, 3 - 35 wt.% of ethylene-propylene-diene terpolymer (mooney viscosity at 100≦̸C, 20 - 110) contg. 20 - 50 wt.% of propylene and dienl and 2 - 5 parts of inorganic filler.