| abstract |
Provided is a composition having a low curing shrinkage, which contains the components (A)-(D) described below.n(A) 100 parts by mass of an oligomer which has a (meth)acryloyl group, while having a diene skeleton or a hydrogenated diene skeletonn(B) more than 700 parts by mass of an oligomer which does not have a (meth)acryloyl group, while having a diene skeleton or a hydrogenated diene skeletonn(C) phenoxy alkylene glycol (meth)acrylaten(D) a photopolymerization initiator |