| abstract |
【Task】 The hard coating agent using the (meth) acrylate having a photopolymerizable group and a thiourethane bond as a component of the present invention is excellent in adhesion to a resin having a thiourethane bond and an epithiosulfide bond, and is excellent in scratch resistance. [Solution] A novel (meth) acrylate represented by the general formula (1). (1) (Wherein the linking group R 1 is an aliphatic residue, aromatic residue, alicyclic residue, heterocyclic residue, or an oxygen atom, sulfur atom, nitrogen atom, aromatic ring, aliphatic ring in the chain) Or an aliphatic residue having a heterocyclic ring, wherein X 1 is a C (═O) O (CH 2 ) 1-4 group, a C═O group, a Ph—C (CH 3 ) 2 group (where Ph is phenylene) X 2 represents a hydrogen atom or a methyl group, and n 1 represents an integer of 1 to 4). [Selection figure] None |