| abstract |
The present invention provides a polymerizable unsaturated compound having (A) (a1) an oxiranyl group or an oxetanyl group, (a2) a copolymer with a polymerizable unsaturated compound other than the above (a1), (B) one or more carboxyl groups, and The thermosetting resin composition containing the compound which has one or more (meth) acryl groups is provided. The thermosetting resin composition of the present invention can form a cured film having high flatness on the substrate even on a substrate having low surface flatness, high transparency and surface hardness, and various resistances such as heat resistance, alkali resistance, and rework resistance. It is preferably used to form an excellent protective film for an optical device. |