Patent ID: 7446163

Claim:
A composition for preparing a resin comprising an episulfide compound represented by the following Formula (4): wherein R 12 and R 13 are each C 1 -C 10 hydrocarbylene or single bond, R 9 , R 11 and R 14 to R 16 are each C 1 -C 10 hydrocarbyl or hydrogen, Y is O, S, Se or Te, and r is an integer from 1 to 5, and at least one of a polymerization regulator represented by the following formula (1) wherein R 1 , R 2 and R 3 are each C 1 -C 10 hydrocarbyl or hydrogen; R 4 is C 1 -C 10 hydrocarbylene or single bond; X is F, Cl, Br, I, As, SH, OH, C 1 -C 10 alkoxyl, C 1 -C 10 alkylthio, or C 1 -C 10 mercaptoalkylthio; and m is an integer from 1 to 5, wherein the composition contains 0.0001 to 1 part of the polymerization regulator based on 100 parts of the episulfide compound (4).