| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject composition excellent in curing rate and physical properties of cured products by bringing the composition to contain a tetramethylpiperidine-N-oxyl compound derivative in a curable composition containing a polymerizable oligomer and N-vinylformylamide. SOLUTION: This composition is obtained by containing (C) 2,2,6,6- tetramethylpiperidine-N-oxyl compound derivative (e.g. 4-hydroxy-2,2,6,6- tetramethylpiperidine-N-oxyl, etc.), in a composition of (A) a polymerizable oligomer (e.g. a polyurethane acrylate, an unsaturated polyester, etc.), with (B) N-vinylformamide. The ingredient (C) is preferably dissolved homogeneously in 10-10,000 ppm based on the ingredient B. Preferably a reactive diluent (e.g. methyl acrylate, etc.), and a photopolymerization initiator (e.g. benzoin, etc.), except the ingredient B are added to the aforementioned composition. |
