Patent ID: 8071686

Claim:
A polyolefin composition comprising, in percent by weight: A) 10-25% of a propylene homopolymer or a copolymer of propylene with at least one comonomer selected from ethylene and CH 2 â•CHR alpha-olefins where R is a 2-8 carbon alkyl, the copolymer comprising up to 8% of the comonomer, or a combination of the propylene homopolymer and the copolymer of propylene; B) 75-90% of a copolymer of ethylene and (i) propylene or (ii) CH 2 â•CHR alpha-olefins, where R is a 2-8 carbon alkyl radical, or (iii) a combination thereof, optionally with minor amounts of a diene, comprising from 54% to 65% of ethylene; wherein the weight ratio B/XS of the content B of copolymer component (B) to the fraction XS of the polyolefin composition which is soluble in xylene at room temperature, both B and XS being referred to the total weight of (A)+(B), is 1.40 or less, wherein the intrinsic viscosity [Î·] of the XS fraction is less than 3 dl/g, determined in tetrahydronaphthalene at 135Â° C., and the polyolefin composition has a gloss value of at most 15% and a Shore A value of at most 90.