Patent ID: 6420090
Filing Date: 2002-07-16
Classification: G03F

Abstract:
A water-based photocurable composition prepared by dispersing a liquid photocurable composition containing a photopolymerizable polyurethane compound having a repeating unit represented by the following formula: Bâ€”[X]n[Y]mâ€”B,where X is represented by the formula: and Y is represented by the formula: â€”OOCHNâ€”Aâ€”NHCOO(R2)â€”, wherein A is a structural unit derived from a polyisocyanate compound, B is same or different and a structural unit derived from a hydroxy compound having at least one photopolymerizable unsaturated group at molecular terminals, respectively, and optionally containing an ether linkage, R1 is a structural unit derived from a carboxyl group-containing polyol compound, R2 is a structural unit derived from a polyol compound, n is an integer of 1 to 10, m is an integer of 1 to 10, provided that one X and one Y are bonded to each other, or three or more of X and/or Y are bonded to each other, and optionally containing a photopolymerizable compound other than the photopolymerizable polyurethane compound, the carboxyl group-containing polyol compound being dimethylol butyric acid.