| 摘要 |
PURPOSE:To obtain a propylene polymer composition having excellent rigidity, heat resistance, facial impact resistance, antistatic properties, etc., by blending a propylene polymer with a specific amount of a specific organic phosphorus- based compound and antistatic agent. CONSTITUTION:(A) 100 pts.wt. propylene homopolymer having 0.8-4dl/g intrinsic viscosity and isotactic pendant fraction >=-1.02[eta]pp+96.0 or mixture of the polymer and a propylene-ethylene copolymer is blended with (B) 0.005-1 pt.wt. organic phosphorus-based compound shown by formula l (R<1> is H or 1-18C alkyl; R<2> is alkyl, group shown by formula II, etc.; M is Na, K, etc.; a is valence of M) and/or organic phosphorus-based compound shown by formula III (R is methylene, etc.; R<3> and R<4> are H or 1-6C alkyl) as a nucleating agent so as to make <150 particles of the compound having >=50mum maximum dimension based on 1mg of the composition and (c) 0.01-5 pts.wt. antistatic agent (e.g. glycerin fatty acid monoester). |
