Patent ID: 8546692
Filing Date: 2013-10-01
Classification: C08K,C08L

Abstract:
1. 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 a random heterophasic propylene copolymer having a propylene homopolymer or copolymer matrix with an ethylene-propylene rubber phase dispersed therein, 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, and wherein the semiconductive composition comprises the random heterophasic propylene copolymer (B) in an amount of 5 to 15 wt % based on the total weight of the semiconductive polymer composition.