A photocurable composition comprising (a) a radical-poly- merizabie monomer, (b) a -ketocarbonyl compound and (c) a derivative of mercaptobenzimidazole, mercaptobenzothiazole or mercaptobenzoxazole or an aromatic amine nucleus-substituted with an electron-attractive group has a high photocuring speed at near to normal temperature to give a cured product of excellent physical properties. This composition is valuable as a dental adhesive or resin.
一种光固化组合物由以下部分组成:(a) 自由基聚梅里扎比单体;(b) 酮羰基化合物;(c) 巯基
苯并咪唑、巯基
苯并噻唑或巯基
苯并恶唑的衍
生物,或由引电子基团取代的芳香胺核。这种成分可用作牙科粘合剂或
树脂。