| 摘要 |
PROBLEM TO BE SOLVED: To provide an acrylic derivative monomer suitable as a monomer forming a curable composition resin which can provide a protective film having flexibility and preventing volume shrinkage during curing.SOLUTION: The ester has one of the hydroxyl groups of trihydric alcohol replaced by a (meth)acryloyl group and the two remaining hydroxyl groups replaced by an acyl group having a specified branch structure. Preferable are an acyl group on the 6-9 carbon not including a ring structure as an acyl group having a branch structure and having two or more branches or an acyl group on the 10-22 carbon not including a ring structure and having a branch. |
