Photo-curable prepolymer comprising quaternary ammonium salt and process for preparing thereof

Abstract

The present invention relates to a photo-curable prepolymer having the following formula (I): ##STR1## in which W represents ##STR2## R.sub.1 represents hydrogen or methyl; R.sub.1 ' represents ##STR3## wherein X represents chlorine or bromine atom, R.sub.2 represents methyl or ethyl, n, o and q independently of one another denote an integer of 1 to 6 and p denotes an integer of 0 to 6; R.sub.2 ' and R.sub.3 ' are identical to or different from each other and represent ##STR4## wherein L denotes an integer of 0 to 5, or ##STR5## wherein m denotes an integer of 1 to 6; a, b and c independently of one another represent a real number of 3 or less, provided that they satisfy the conditions of 0<a.ltoreq.3, 0.ltoreq.b and/or c<3 and a+b+c=3. which shows permanent antistatic property by introducing therein an acrylate moiety having quaternary ammonium group and hydroxy group simultaneously, and to a process for preparing thereof.

Dependencies are inferred from the claim text.