Patent ID: 6512046
Filing Date: 2003-01-28
Classification: C04B,C08F,C08L,C09D

Abstract:
A polymerizable unsaturated polyester resin composition comprising:straight-chain polyester molecules (A) having a (meth)acryloyl group at each end thereof and ethylenically unsaturated monomer (B), said straight-chain polyester molecules (A) being obtained by reacting:(a) terephthalate oligomer molecules having a hydroxyl group at each end thereof resulting from an alcoholysis reaction of collected waste polyethylene terephthalate by an aliphatic glycol having an ether bond, (b) a dibasic acid containing an aromatic dibasic acid as a principal component, and (c) a glycidyl (meth)acrylate wherein the content of a structural unit of the aromatic dibasic acid (b) in the straight-chain polyester molecules (A) is from 15 to 60% by weight, and the content of a structural unit of the aliphatic glycol having an ether bond is from 10 to 35% by weight.