| 摘要 |
PROBLEM TO BE SOLVED: To provide a photocurable elastomer composition which has excellent flexibility and barrier properties when hardened and can exert small compression permanent strain.SOLUTION: A photocurable elastomer composition comprises (A) a liquid polymer based on the unit of -[CHC(CH)]-, (B) a polymer of a number average molecular weight of 3,000 or greater containing at least two reactive functional groups, per molecule, of at least one kind selected from (meth)acrylic, vinyl, vinylidene and maleimide groups, (C) a (meth)acrylate monomer and (D) a photopolymerization initiator, in a mass ratio (A):(B) of 7:93 to 75:25 and a content of (C) of 25-55 mass% with respect to the combined content of (A), (B) and (C). |
