| abstract |
Provided are a temporal fixation method in processing of optical members and a resin composition suitable therefore, which uses a composition which is characterized by containing the following (A3), (B3) and (D3), wherein (A3) is a urethane (meth)acrylate; (B3) is one or more (meth)acrylic acid derivative monomers selected from the group consisting of n-(meth)acryloyloxyalkyl hexahydrophthalimides, carboxyl group-containing (meth)acrylates and (meth)acrylic acid derivative monomers represented by the formula (C3): n Z—O—(R 2 O) p —R 1 Formula (C3):n wherein Z represents a (meth)acryloyl group, R 1 represents a phenyl group or a phenyl group having an alkyl group with 1 to 3 carbon atoms, R 2 represents —C 2 H 4 —, —C 3 H 6 —, —CH 2 CH(CH 3 )—, —CH 2 CH(OH)CH 2 —, —C 4 H 8 — or —C 6 H 12 —, and p represents an integer of from 1 to 10; and D(3) is a photopolymerization initiator, along with methods for temporarily fixing a member. |