| 摘要 |
PURPOSE:To obtain a cured product of excellent storage stability in good workability without polymerization inhibition from oxygen in the air, by adding a specified catalyst to a glycidyl (meth)acrylate polymer and effecting ultraviolet radiation curing of the polymer. CONSTITUTION:To a glycidyl (meth)acrylate polymer comprising 5-100mol% glycidyl (meth)acrylate and 95-0mol% other alpha,beta-unsaturated monomers (e.g., styrene) is added 0.05-20wt% organosulfur compound, as a catalyst, of the formula: A-X-B (wherein A and B are each a phenyl, benzyl or phenacyl which may have a 1-3C alkyl as a substituent, X is -S-, -SO- or -SO2-) and/or an organosulfur compound of the formula: D-Y-E (wherein D and E are each a phenyl which may have a 1-3C alkyl as a substituent, and Y is -SS-, -SO2S- or -SO2SO2-), and the mixture is cured by irradiation with ultraviolet rays.
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