Patent ID: 6296986
Filing Date: 2001-10-02
Classification: C08F,C09D,G03F

Abstract:
A non-polymeric photoinitiator which is multi-functional with respect to Tape I photoinitiator groups and which is obtainable as the reaction product of a multi-functional core material containing two or more reactive groups and a Type I photoinitiator or a derivative thereof, which photoinitiator or its derivative has a reactive group capable of reacting with said reactive groups of the multi-functional core, wherein one out of the reactive groups of the multi-functional core material and the reactive groups of the photoinitiator or its derivative is selected from either of the groups consisting of (a) and (b) in one of the following sets (i) to (iv) and the other is selected from the other group consisting of (b) and (a) in the same set:(i) (a) an acid group, acid anhydride group, acid halide group or other carboxylic acid derivative;(b) hydroxy groups, amine groups, epoxy groups;(ii) (a) an acrylate or methacrylate group,(b) amine and thiol groups;(iii) (a) a hydroxy group,(b) halide groups and epoxy groups; and(iv) (a) an amine group,(b) halide groups and epoxy groups.