An improved light activatable anaerobic curable composition of the type comprising:
a) an acrylate or methacrylate monomer or prepolymer;
b) a peroxide compound;
c) a ferrocenyl compound; and
d) an α- or β-sulfonyloxyacetophenone compound of the formula I, II or III.
in which R, - R10, X, Y and n are as defined in Claim 1. The α-or β-sulfonyloxyphenone compound used in the compositions of the invention are distinguished by their rapid activation over existing onium salts.
一种改进型光活化厌氧固化组合物,该组合物包括:a)
丙烯酸酯或
甲基丙烯酸酯单体或预聚物;b)过氧化物化合物;c)
二茂铁化合物;和d)式I、II或III的α-或β-砜氧基
苯乙酮化合物,其中R、-R10、X、Y和n如权利要求1所定义。 本发明组合物中使用的α-或β-砜氧基
苯乙酮化合物的特点是比现有的鎓盐活化快。