| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical waveguide forming material which is easily produced at low costs of starting materials, has low tackiness in the uncured state after coating on a substrate, gives a film excellent in sensitivity, resolution, heat and moisture resistances and adhesiveness and undergoes easy adjustment of refractive index. SOLUTION: The optical waveguide forming material comprises a photo- setting organopolysiloxane composition containing (A) a (meth)acryloyloxyl- containing organopolysiloxane having a weight average molecular weight of 1,000-100,000 represented by the average composition formula (CH<SB>2</SB>=CR<SP>1</SP>COO(CH<SB>2</SB>)<SB>n</SB>)<SB>a</SB>(Ph)<SB>b</SB>R<SP>2</SP><SB>c</SB>(R<SP>3</SP>O)<SB>d</SB>SiO<SB>(4-a-b-c-d)/2</SB>(where R<SP>1</SP>is H or methyl; R<SP>2</SP>is a 1-8C alkyl or a 2-8C alkenyl; Ph is phenyl; R<SP>3</SP>is H or a 1-4C alkyl; 0.05≤a≤0.9; 0.1≤b≤0.9; 0≤c≤0.2; 0<d≤0.5; 0.8≤a+b+c+d≤1.5; and n=2-5) and (B) a photosensitizer. A method for manufacturing an optical waveguide using the optical waveguide forming material is provided. COPYRIGHT: (C)2003,JPO |
