| 摘要 |
<p>PURPOSE:The titled rapid-curing composition excellent in hardness, impact resistance, chemical resistance, and adhesion, comprising an oxirane ring-containing compound, a specified (meth)acrylate compound, a compound capable of releasing a compound having cation polymerizability and a sensitizer. CONSTITUTION:A composition comprising (A) 97-3wt% compound having at least one oxirane ring in the molecule, e.g., bisphenol A diglycidyl ether, and (B) 3-97wt% (meth)acrylate compound containing 20wt% or above compound having at least two (meth)acryloyl groups in the molecule, e.g., epozy acrylate, wherein the glass transition points of polymers of components A and B differ from each other by at least 20 deg.C, the higher glass transition point is 10 deg.C or higher, and the lower glass transition point is 20 deg.C or lower, is mixed with (C) a compound which can release a compound having cation polymerizability upon irradiation with ultraviolet rays, e.g., p-nitrobenzene diazonium, and (D) a sensitizer, e.g., benzoin.</p> |
