| 摘要 |
PURPOSE:To obtain the titled composition curable in a short time at a low temperature, by compounding a compound having spiro-orthoester group or bicyclo-orthoester group with an organic polybasic acid (anhydride) as a hardener and an imidazole compound or a Lewis acid as a cure accelerator. CONSTITUTION:The objective composition can be produced by compounding (A) a compound having one or more spiro-orthoester group or bicyclo-orthoester group with (B) an organic polybasic acid (anhydride) as a hardener and (C) one or more specific imidazole-type and/or Lewis acid-type cure accelerators. The imidazole-type cure accelerator is e.g. imidazole, carbonylimidazole, 2-phen yl-4, 5-dihydroxymethylimidazole, 2-phenyl-4-methyl-5-hydroxymethylimidazole, 2-phenylimidazole, etc., and the Lewis acid-type accelerator is e.g. zinc fluoride, zinc chloride, zinc bromide, zinc iodide, guanidine tetrafluoroborate, zinc tetrafluoroborate, etc.
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