Composition of polyolefins with reduced appearance of flow marks

2011 
Composition of polyolefins comprising a. 35-90% by weight, based on the weight of the polyolefins composition, of a heterophasic polypropylene composition comprising I. 10-50% by weight, based on the weight of the heterophasic polypropylene composition, of a first polypropylene (PP1) having an MFR2 measured according to ISO 1133 of 30-80 g / 10 min. (at 230 ° C, with 2.16 kg), II. 20-65% by weight, based on the weight of the heterophasic polypropylene composition, of a second polypropylene (PP2) having an MFR2 measured according to ISO 1133 of 1000-250 g / 10 min. (at 230 ° C, with 2.16 kg), III. 5-30% by weight, based on the weight of the heterophasic polypropylene composition, of a first cold soluble fraction in xylene (XS1) measured according to ISO 6427 which has an intrinsic viscosity IVXS1 of 2.0-3 , 0 dl / g (measured according to DIN ISO 1628-1), IV. 5-25% by weight, based on the weight of the heterophasic polypropylene composition, of a second cold soluble fraction in xylene (XS2) having an intrinsic IVXS2 viscosity of 1.5 - 2.8 dl / g, with the proviso that IVXS1 - IVXS2, b. 5-40% by weight, based on the weight of the polyolefins composition, of an inorganic filler, and c. 5-25% by weight, based on the weight of the polyolefins composition, of an ethylene / propylene elastomer.
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