Patent ID: 8691890

Claim:
A dry-type unsaturated polyester resin composition containing at least an unsaturated polyester resin, a polymerization initiator, an inorganic filler, a white pigment, a release agent and a reinforcing material, wherein: an amount of the unsaturated polyester resin is within a range of from 14 to 40% by mass relative to an entire amount of the composition, a total amount of the inorganic filler and the white pigment is within a range of from 44 to 74% by mass relative to the entire amount of the composition, a proportion of the white pigment to the total amount of inorganic filler and the white pigment is at least 30% by mass, the unsaturated polyester resin is an unsaturated alkyd resin mixed with a crosslinking agent, and a mean particle size of the white pigment is at most 2.0 μm.