Patent ID: 7947348

Claim:
A polypropylene composition comprising: A) a polymer comprising: a I ) 25 wt % to 75 wt % of a homopolymer of propylene, or a minirandom copolymer of propylene comprising up to 2.0 wt % of at least one comonomer selected from ethylene, C 4 -C 10 α-olefin, and mixtures thereof, wherein the homopolymer of propylene or minirandom copolymer of propylene comprise an isotactic index greater than 80%; and a II ) 25 wt % to 75 wt % of a random copolymer of propylene, and at least one olefin selected from ethylene, C 4 -C 10 α-olefins, wherein the random copolymer of propylene comprises 0.3 to 30 wt % of the olefin, and the random copolymer of propylene comprises an isotactic index greater than 60%; and B) from 500 to 1500 ppm by weight of talc particles comprising an average particle diameter of equal to or less than 1.5 μm.