Curable composition
AssigneeKuraray Co., Ltd.
InventorsKei Hirata, Koji Kitayama, Mizuho Maeda
Life of this patent
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Abstract
A curable composition includes (A) a (meth)acrylate, (B) a radical polymerization initiator, (C) an epoxidized polyisoprene containing an epoxy group at 0.15 to 2.5 meq/g in the molecule and having a number-average molecular weight of 15000 to 200000, and (D) a curing accelerator. The curable composition shows high elongation and excellent rubber elasticity even in a cured state and has superior compatibility, transparency, waterproofness and flexibility, so that cracks and separation of cured products are reduced. Accordingly, the composition is suitable for use as adhesives, coating agents, encapsulating materials, inks, sealing materials and the like.
Claims9
A curable composition comprising:
- (A) at least one compound selected from the group consisting of an acrylate monomer and a methacrylate monomer,
- (B) a radical polymerization initiator,
- (C) an epoxidized polyisoprene, and
- (D) a curing accelerator,
- wherein
- the curing accelerator (D) is a cationic photopolymerization initiator, and
- the epoxidized polyisoprene:
- is obtained by epoxidation of a polyisoprene which consists of isoprene units;
- comprises 0.15 to 2.5 meq/g of epoxy group;
- and
- has a number-average molecular weight of 15,000 to 200,000, determined by gel permeation chromatography, in terms of polystyrene.
Dependencies are inferred from the claim text.