Patent ID: 10167384

Abstract:
The invention is directed to a composition comprising (A) a heterophasic propylene copolymer, (B) talc and (C) a functionalized polypropylene grafted with an acid or acid anhydride functional group, wherein the heterophasic propylene copolymer consists of (a) a propylene-based matrix, wherein the propylene-based matrix consists of a propylene homopolymer and/or a propylene-α-olefin copolymer consisting of at least 70 wt % of propylene and at most 30 wt % of a-olefin, based on the total weight of the propylene-based matrix and wherein the propylene-based matrix is present in an amount of 90 to 95 wt % based on the total heterophasic propylene copolymer and (b) a dispersed ethylene-α-olefin copolymer, wherein the dispersed ethylene-α-olefin copolymer is present in an amount of 10 to 5 wt % based on the total heterophasic propylene copolymer and wherein the sum of the total amount of propylene-based matrix and total amount of the dispersed ethylene-α-olefin copolymer in the heterophasic propylene copolymer is 100 wt %, wherein the heterophasic propylene copolymer has an MFI of 0.1-0.5 dg/min as determined according to IS01133 at 230° C. and 2.16 kg and wherein the amount of the talc in the composition is 0.025-10 wt % of the total composition and the amount of the functionalized polypropylene is 0.005-2.5 wt % of the total composition.