Phosphorus-containing urethane(meth)acrylate compounds and photosensitive compositions

A phosphorus-containing urethane (meth)acrylate compound obtained by reacting (A) a polyol compound comprising (A1) a phosphorus-containing polyol having a phosphorus atom, represented by the following general formula (5):

• where R1 is hydrogen, C1-18 alkyl or C6-20 aryl, R7 is C1-18 alkyl or C6-20 aryl, and R8 is a group selected from the group consisting of polyhydroxyalkyl, polyhydroxyaryl, polyhydroxyalkylaminoalkyl, polyhydroxyarylaminoalkyl, polyhydroxyalkylaminoaryl, polyhydroxyarylaminoaryl, polyhydroxyalkyloxycarbonylalkyl, polyhydroxyalkyloxycarbonylaryl, polyhydroxyaryloxycarbonylalkyl and polyhydroxyarycarbonylaryl, and (A2-1) a carboxyl group-containing, phosphorus-free polyol having one or more carboxyl groups and two or more alcoholic hydroxyl groups, with (B) a polyisocyanate having two or more functional groups and (C) a hydroxyl group-containing (meth)acrylate.