(Meth) acryloyl group-containing compound and method for producing the same

A compound having a (meth)acryloyl group

• which has in a molecule at least two of (meth)acryloyl group-containing groups,
• said (meth)acryloyl group-containing groups being a group represented by the general formula (1):
• wherein R1 represents a hydrogen atom or a methyl group, R2 represents an organic moiety selected from the group consisting of linear, branched or cyclic alkylene group of 2 to 18 carbon atoms, an alkoxyalkylene group of 2 to 20 carbon atoms, a halogenated alkylene group of 2 to 8 carbon atoms, a polyethylene glycol structure except for the end hydroxyl groups, a polypropylene glycol structure except for the end hydroxyl groups, a polybutylene glycol structure except for the end hydroxyl groups and an aryl aroup, R3 represents a hydrogen atom or an organic moiety, and X represents an oxygen or a sulfur atom, and/or
• a group represented by the general formula (2):
• wherein R4 represents a hydrogen atom or a methyl group, R5 represents an organic moiety selected from the group consisting of a linear, branched or cyclic alkylene group of 2 to 18 carbon atoms, an alkoxyalkylene group of 2 to 20 carbon atoms, a halogenated alkylene group of 2 to 8 carbon atoms, a polyethylene glycol structure except for the end hydroxyl groups, a polypropylene glycol structure except for the end hydroxyl groups, a polybutylene glycol structure except for the end hydroxyl groups and an aryl group, R6 represents a hydrogen atom or an organic moiety.