Patent ID: 11472951

Abstract:
Provided is a heterophasic propylene polymer material having excellent low temperature impact resistance, tensile strength, and tensile elongation. A heterophasic propylene polymer material contains a propylene homopolymer component (A), and an ethylene-propylene copolymer component (B1) and an ethylene-propylene copolymer component (B2) having different formulations from each other, wherein a content of the propylene homopolymer component (A), a content of the ethylene-propylene copolymer component (B1), and a content of the ethylene-propylene copolymer component (B2) are 40 to 70 parts by mass, 15 to 54 parts by mass, and 6 to 15 parts by mass, respectively, with respect to 100 parts by mass of a total content of the propylene homopolymer component (A) and the ethylene-propylene copolymer components (B1) and (B2).