TOUGH COMPOSITION FOR FOOD APPLICATIONS

摘要

Heterophasic polypropylene composition comprising: - a polypropylene matrix (M) and - an elastomeric copolymer (E) being dispersed in the matrix (M), wherein the elastomeric copolymer (E) comprises units derived from - propylene and - ethylene and/or C4 to C20 a-olefin, and wherein further, - the intrinsic viscosity of the xylene cold soluble fraction (XCS) of the heterophasic polypropylene composition is above 2.1 dl/g measured according to ISO 1628-1 (at 135 °C in decaline) and/or - Mz/Mw of the xylene cold soluble fraction (XCS) of the heterophasic polypropylene composition is more than 2.6, preferably 2.7, wherein the Mz is the z-average molecular weight measured according to ISO 16014-4:2003 and Mw is the weight average molecular weight measured according to ISO 16014-4:2003.