| 摘要 |
PROBLEM TO BE SOLVED: To provide a uniform unsaturated polyester resin mixture which contains reinforcing fibers and intends a pressure curing mold composition. SOLUTION: This unsaturated polyester resin mixture comprises the following components: (1) an unsaturated polyester resin having a weight-average mol.wt. of 500 to 5,000 g/mol, (2) an ethylenic unsaturated monomer, (3) a contraction-reducing component, (4) an inactive filler, (5) reinforcing fibers, and (6) a block copolymer in an amount of 0.01 to 1 wt% based on the total weight of the unsaturated polyester resin mixture containing the reinforcing fibers, wherein the block copolymer comprises one block A and one block B, said block A containing an amine-containing ethylenic unsaturated monomer, and said block B containing an alkyl and/or phenyl-containing ethylenic unsaturated monomer introduced into the polymer during the polymerization. COPYRIGHT: (C)2006,JPO&NCIPI
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