Polypropylene-based resin composition and foam molded body

Abstract

One embodiment of the present invention relates to a polypropylene-based resin composition or a foam molded body containing a polypropylene-based resin composition, and the polypropylene-based resin composition is a polypropylene-based resin composition (X) containing 20 parts by mass or more and 80 parts by mass or less of an impact polypropylene (A) that satisfies the following requirements (a-1) and (a-2), 10 parts by mass or more and 40 parts by mass or less of an ethylene-based elastomer (B) that satisfies the following requirements (b-1) and (b-2), and 10 parts by mass or more and 40 parts by mass or less of an inorganic filler (C) that is talc, wherein the requirement (x-1) is satisfied. (a-1) an MFR measured at 230° C. and a load of 2.16 kg in accordance with ASTM D-1238 is 60 g/10 min or more and 300 g/10 min or less; (a-2) a propylene/ethylene copolymer that is specified as a decane soluble part at 23° C. is contained, and an intrinsic viscosity [η] of the propylene/ethylene copolymer is 4.1 dl/g or more and 10 dl/g or less; (b-1) an MFR measured at 190° C. and a load of 2.16 kg in accordance with ASTM D-1238 is 0.5 g/10 min or more and 30 g/10 min or less; (b-2) a density is 0.85 g/cm or more and 0.875 g/cm or less; and (x-1) a content of a polypropylene component having a molecular weight of 106.5 or more is less than 0.05 mass % relative to 100 mass of the polypropylene-based resin composition (X).

Dependencies are inferred from the claim text.