Patent ID: 9403975
Filing Date: 2016-08-02
CPC Classification: C08F,C08L,H01B

Claim Text:
1. A thermoplastic polymer composition comprising the following (A) to (D); (A) 5 to 64.9% by weight of a propylene-based polymer having a melting point, as measured by differential scanning calorimetry (DSC), in the range of 120° C. to 170° C.; (B) 0 to 59.9% by weight of a propylene-based polymer having a melting point, as measured by differential scanning calorimetry (DSC), of less than 120° C. or having no observed melting point; (C) 0.1 to 30% by weight of a graft-modified propylene-based polymer obtained by graft modifying a propylene-based polymer (C-1) having a melting point, as measured by differential scanning calorimetry (DSC), of less than 120° C. or having no observed melting point, with at least one vinyl compound containing a polar group; and (D) 35 to 75% by weight of an inorganic filler, wherein, the total amount of (A), (B), (C) and (D) is 100% by weight; wherein the propylene-based polymer (C-1) is wherein the vinyl compound containing a polar group is an unsaturated carboxylic acid or a derivative thereof, the derivative being selected from the group consisting of acid halide compounds, amide compounds, imide compounds and acid anhydrides; and wherein the graft amount of the vinyl compound having a polar group in the graft-modified propylene-based polymer (C) obtained is 0.05 to 5% by weight.