| 摘要 |
PURPOSE:To obtain the title composition which is composed of (meth)acrylate derivatives, an alpha-diketone or quinone derivative showing absorption at a specific wavelength as a photosensitizer, and a specific amine as a polymerization accelerator, thus being free from monomer leaching. CONSTITUTION:The title composition is composed of (A) a (meth)acrylate derivative such as 2,2'-bis(4-methacryloxyphenyl)propane, (B) an alpha-diketone or quinone derivative showing a distinct absorption at 380-500nm as a photosensitizer such as phenanthraquinone, 2,3-pentanedione), and (C) a compound of the formula (R<1>, R<2> are H, lower alkyl; R<3> is alkylene which may be substituted with hydroxyl or the like; R<4> is H, methyl) as a polymerization accelerator. The composition is excellent from the physical, chemical and clinical points of view with reduced amounts of exudation of remaining monomers, catalysts and other substances.
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