Abstract: a polypropylene resin composition comprising:(A) a composition of (a) a crystallineethylene-propylene block copolymer, (b) a thermoplastic elastomerhaving a substantially saturated main chain, and (c) an inorganic filler;(B) (i) a hindered nitrogen-free phenolic antioxidant;(ii) a nitrogen-containing hindered phenolic antioxidant;(iii) a benzotriazole ultraviolet absorber; and(iv) a hindered amine light stabilizer having a molecular weight of 500 or more or having no N-H bond and having a molecular weight of less than 500, or(i') a hindered phenolic antioxidant;(ii') an organic sulfur type antioxidant; and(iii') a hindered amine light stabilizer having no N-H bond.

Abstract: A polypropylene resin composition comprising:(A) 50 to 90% by weight of a crystalline ethylene-propylene block copolymer;(B) 5 to 20% by weight of a hydrogenated block copolymer composed of both end blocks of an aromatic vinyl compound and an intermediate block of a conjugated diene polymer;(C) 0 to 15% by weight of an amorphous ethylene-propylene copolymer;(D) 0 to 5% by weight of a high density polyethylene having a melt flow index of 1 to 10; and(E) 5 to 30% by weight of a particulate or flaky inorganic filler having an average particle diameter of 3 .mu.m or less, wherein the blending ratio (B)/(C) (by weight) of the hydrogenated block copolymer component (B) to the amorphous ethylene-propylene copolymer component (C) is 100/0 to 20/80.