| 摘要 |
PROBLEM TO BE SOLVED: To provide an active energy ray-curable resin composition for casting polymerization which excels in curability and die reproducibility and ensures a high refractive index and superior environmental stability of the cured material obtained, and to provide a cured material excelling in environmental stability. SOLUTION: The active energy ray-curable resin composition for casting polymerization contains a monomer (A), having polymerizable unsaturated double bonds which includes a compound represented by formula (1); a polymer (B) having, as a principal skeleton, a structure obtained by polymerizing a monomer having a single polymerizable unsaturated double bond per molecule, the polymer having a weight average molecular weight of 2,000-100,000 and containing polymerizable unsaturated double bonds in the polymer structure; and a photopolymerization initiator (C). The composition contains the monomer (A) and the polymer (B), in a weight ratio [(A)/(B)] of 97/3 to 55/45. COPYRIGHT: (C)2010,JPO&INPIT |
