Patent ID: 7446159

Claim:
A curable resin composition comprising a fluorene group-containing acrylate or methacrylate represented by the following formula (1) and a monofunctional acrylate or methacrylate represented by the following formula (2) or (3): wherein X is —(CH 2 CH 2 O) n — or —(CH 2 CH 2 O) n —CH 2 CH(OH)CH 2 O— with n being 1 to 5 and R is an acrylic or methacrylic group; A—Y—X (2) wherein A is an acrylic or methacrylic group, X is a phenyl group, a cumylphenyl group, a biphenyl group, a terphenyl group, or a polycyclic aromatic hydrocarbon group, and Y is —(CH 2 CH 2 O) n — or —(CH 2 CH 2 CH 2 O) n , with n being 1 to 5 or —(CH 2 CH 2 O) n1 —(CH 2 CH 2 CH 2 O) n2 — with n1+n2 being 2 to 5; and A—Y—X—R m (3) wherein A is an acrylic or methacrylic group, X is a phenyl group, a cumylphenyl group, a biphenyl group, a terphenyl group, or a polycyclic aromatic hydrocarbon group, Y is —(CH 2 CH 2 O) n — or —(CH 2 CH 2 CH 2 O) n with n being 1 to 5 or —(CH 2 CH 2 O) n1 —(CH 2 CH 2 CH 2 O) n2 — with n1+n2 being 2 to 5, R is CH 3 , Br, or I, and m is 1 to 6.