申请人:International Bio-Synthetics Limited
公开号:US05414092A1
公开(公告)日:1995-05-09
Thioxanthone derivatives of the general formula I ##STR1## wherein R.sup.1 wherein R.sup.1 represents a halogen atom or a C.sub.1-10 alkoxy group, R.sup.2 and R.sup.4 each represent a hydrogen atom, a halogen atom or a C.sub.1 -C.sub.6 alkyl group, X represents oxygen or sulphur, and R.sup.3 represents a C.sub.1 -C.sub.10 alkyl group optionally substituted by a hydroxy group which hydroxy group may be alkylated by an optionally substituted C.sub.1-6 alkyl, C.sub.1-6 alkenyl or a benzyl group or acylated by a C.sub.1-8 alkanoyl or C.sub.1-8 alkenoyl group, a C.sub.1-10 alkenyl group, a C.sub.3 -C.sub.6 cycloalkyl group, a C.sub.1 -C.sub.8 alkanoyl group, a C.sub.1-8 alkenoyl group, an optionally substituted phenyl group, an optionally substituted benzyl group or an optionally substituted benzoyl group. Process for the preparation of the above thioxanthones, their use as photoinitiators, photopolymerisable compositions containing them, the use of such compositions for the production of photocured surface coating and products on which these photocured compositions have been applied.
通用公式I的噻吩酮衍生物##STR1##其中R.sup.1代表卤素原子或C.sub.1-10烷氧基团,R.sup.2和R.sup.4各自代表氢原子、卤素原子或C.sub.1-C.sub.6烷基团,X代表氧或硫,R.sup.3代表C.sub.1-C.sub.10烷基团,该烷基团可以选择地被一个羟基取代,而该羟基可能被一个选择性取代的C.sub.1-6烷基、C.sub.1-6烯基或苄基烷基化,或者被一个C.sub.1-8烷酰基或C.sub.1-8烯酰基团酰化,一个C.sub.1-10烯基团,一个C.sub.3-C.sub.6环烷基团,一个C.sub.1-C.sub.8烷酰基团,一个C.sub.1-8烯酰基团,一个可选择取代的苯基团,一个可选择取代的苄基团或一个可选择取代的苯甲酰基团。上述噻吩酮的制备方法,它们作为光引发剂的用途,含有它们的光聚合组合物,以及这些光聚合组合物用于生产光固化表面涂层和应用了这些光固化组合物的产品的用途。