Patent ID: 7375170

Claim:
A silicon compound represented by Formula (1): wherein each R 1 is a group independently selected from hydrogen, an alkyl having 1 to 45 carbon atoms, a substituted or unsubstituted aryl, and an arylalkyl constituted of a substituted or unsubstituted aryl group and an alkylene group; in the alkyl having 1 to 45 carbon atoms, arbitrary hydrogen may be replaced by fluorine, and arbitrary —CH 2 — may be replaced by —O— or a cycloalkylene; in the alkylene group of the arylalkyl, arbitrary hydrogen may be replaced by fluorine, and arbitrary —CH 2 — may be replaced by —O— or a cycloalkylene; each R 2 is a group independently selected from an alkyl having 1 to 8 carbon atoms, phenyl, and cyclohexyl; and A is a group having a polymerization initiating ability for addition polymerizable monomers.