| 摘要 |
A 1-cyclohexyl-1-methylethyl peroxy ester, a novel compound, represented by the formula: <IMAGE> wherein R1 stands for one member selected from the group consisting of H and alkyl groups and R2 and R3 independently stand for an alkyl group, provided that R2 and R3 each stand for an alkyl group of 1 to 5 carbon atoms and the sum of the carbon atoms of R2 and R3 is in the range of from 2 to 6 where R1 is H and R1, R2, and R3 each stand for an alkyl group of 1 to 9 carbon atoms and the sum of the carbon atoms of R1, R2, and R3 is in the range of from 3 to 11 where R1 is an alkyl group, a polymerization initiator for a vinyl group-containing compound monomer and a curing agent for an unsaturated polyester resin, which polymerization initiator and curing agent both contain as an active component thereof the ester mentioned above.
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