Patent ID: 8436089
Filing Date: 2013-05-07
Classification: C08K,C08L

Abstract:
1. A polypropylene composition comprising the reactive melt blending product of: less than 90 percent by weight of a high crystalline polypropylene having a melt flow rate of less than 5 g/10 minutes measured at 230° C. under a load of 2.16 kg according to ASTM-D 1238 and a crystallinity of at least 64 percent; from 10 to 20 percent by weight of an ethylene based elastomer having a density in the range of 0.855 to 0.890 g/cm from 400 to 800 parts by weight of a coupling agent per one million parts of the propylene composition; and from 20 to 50 percent by weight of a filler, based on the weight of the propylene composition; wherein said polypropylene composition having a melt flow rate in the range of from 0.25 to 0.65 g/10 minutes measured at 230° C. under a load of 2.16 kg according to ASTM-D 1238 and a flexural modulus of at least 350,000 psi, as measured in accordance with ASTM-D 790A.