HETEROPHASIC POLYOLEFIN COMPOSITION

摘要

Polymer composition suitable for ABS styrenic resin replacement where high dimensional stability and a good esthetical appearance is required, comprising a polymer blend (A), comprising 60-80% by weight, of a crystalline propylene homo or copolymer (A1) (MFR = 50 g/10 min); and 20-40% by weight, of copolymer(s) of ethylene (A2). Said polymer blend (A) having values of MFR up to 30 g/10 min; the amounts of (A1) and (A2) being referred to the total weight of the polymer blend (A).The polymer composition further comprises 20- 40% by weight, of a talc mineral filler (B); the amount of components (B) being referred to the total weight of the composition. Optionally the polymer composition further comprises 1- 5% by weight, of an elastomeric polymer (C) different from (A2), having a hardness (Shore A, ASTM D-2240) value equal to or lower than 80 points; the amount of components (C) being referred to the total weight of the composition.