| 摘要 |
PROBLEM TO BE SOLVED: To obtain a curable composition suitable as a lining material of a denture bed which is allowed to be cured in the oral cavity, has good curability without acidity, bitterness, an offensive odor and the like, and does not cause discoloration with time. SOLUTION: The curable composition comprises (A) a polymerizable monomer represented by formula (1) (wherein R<SP>1</SP>and R<SP>2</SP>are each a methyl group or the like; Z is a 6-20C hydrocarbon group; and m and n are each an integer of≥1 which makes m+n 4 to 15), (B) an aryl borate salt, and (C) a solid acid such as a pulverized cation-exchange resin powder and comprises neither a polymerizable monomer having an acidic group such as a phosphoric acid group nor a polymerizable monomer represented by formula (2) (wherein R<SP>3</SP>to R<SP>5</SP>are each a methyl group or the like; R<SP>6</SP>is hydrogen or a 1-8C organic group; and x is an integer of 1-20) such as a 2-hydroxymethacrylate. No incorporation of the compound of formula (2) enables the composition which is free of acidity, bitterness, an offensive odor and the like, and the use of the compound of formula (1) enables good dissolution of the aryl borate salt. COPYRIGHT: (C)2006,JPO&NCIPI
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