| 摘要 |
PROBLEM TO BE SOLVED: To provide a photopolymerisable composition which is good in stability to environmental light in a paste state, and is cured to be high in mechanical strength and good in color stability. SOLUTION: The photopolymerisable composition comprises (a) a polymerisable monomer, (b) anα-diketone, (c) an aromatic tertiary amine, and (d) a benzotriazole compound represented by formula (1), wherein R<SB>1</SB>is H, a halogen, or a 1-6C alkyl group; and R<SB>2</SB>-R<SB>5</SB>are independently H, a halogen, or a 1-12C organic group which may contain at least one element selected from the group consisting of O, N, S, and P. The composition is a photopolymerisable composition suitable for a dental prosthetic material, which is good in stability to environmental light in a paste state before curing, and is cured to be high in mechanical strength and good in color stability. COPYRIGHT: (C)2004,JPO&NCIPI
|
