| abstract |
A photocurable resin composition comprising: n (A) a urethane (meth)acrylate produced by reacting at least a polyether polyol with a number average molecular weight of 500 or more having an alkyleneoxy structure in the molecule, an organic polyisocyanate compound, and a (meth)acrylate containing a hydroxyl group; n (B) a monofunctional (meth)acrylate shown by the following formula (1), n n n wherein R 1 represents a hydrogen atom or a methyl group, R 2 represents —(CH 2 CH 2 O) p —, —(CH(CH, 3 )CH 2 O) q—, or —CH 2 CH(OH)CH 2 O—, Y 1 , Y 2 , and Y 3 individually represent a hydrogen atom, bromine atom, alkyl group having 1-10 carbon atoms, phenyl group, or —C(CH 3 ) 2 C 6 H 5 —, and p and q represent integers from 0 to 10; and n (C) a photoinitiator; n its use and optical parts prepared from the photocurable resin composition. |