| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a photocurable elastomer composition which has excellent flexibility and barrier properties when hardened and is small in compression permanent strain.SOLUTION: A photocurable elastomer composition comprises (A) a liquid polymer containing at least 80% of units selected from those originated from hydrogenated products of polyisoprene, hydrogenated products of polybutadiene, hydrogenated products of styrene-butadiene copolymers and ethylene-propylene copolymers, (B) a polymer 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 25:75 to 75:25 and a content of (C) of 50 mass% or lower with respect to the combined content of (A), (B) and (C).</p> |
