Patent ID: 8513525

Claim:
A semiconductive polymer composition comprising: (A) an ethylene copolymer comprising polar co-monomer units, wherein the amount of the polar co-monomer units in the ethylene copolymer is 10 wt. % or more, based on the total weight of the ethylene copolymer, (B) an olefin copolymer comprising propylene monomer units in an amount of 50 wt % or more and monomer units of an alpha-olefin having at least 4 carbon atoms, wherein the olefin copolymer has a melting point of 110° C. or less, and (C) carbon black in an amount of from 10 to 50 wt. %, based on the total weight of the semiconductive polymer composition, wherein the olefin copolymer (B) is prepared by using a metallocene polymerization catalyst.