Patent ID: 8501842

Claim:
A polypropylene resin composition comprising 99 to 60 parts by weight of propylene-based polymer (A), 1 to 40 parts by weight of inorganic filler (B) having an average particle diameter of 0.01 to 100 μm, and 0.05 to 5 parts by weight of a hindered amine light stabilizer (C) which satisfies requirements (a), (b) and (c) defined provided below, provided that the combined amount of the propylene-based polymer (A) and the inorganic filler (B) is 100 parts by weight: requirement (a): it has a 2,2,6,6-tetramethylpiperidyl group represented by formula (I); requirement (b): it has an acid dissociation constant (pka) of less than 8; requirement (c): the weight loss, as measured in a thermogravimetric analysis at a measurement temperature of 300° C. under a nitrogen gas atmosphere, is less than 10% by weight, wherein the propylene-based polymer (A) has an MFR of 10 to 200 g/10 min as measured at a temperature of 230° C. and a load of 2.16 kgf in accordance with JIS K6758.