PHOTOSENSITIVE COMPOSITION, MASTER PLATE FOR PLANOGRAPHIC PRINTING PLATE, POLYURETHANE, AND METHOD FOR PRODUCING POLYURETHANE

摘要

A photosensitive composition comprising (A) a polyurethane produced by reacting a diol component comprising a compound represented by general formula (I) with a polyisocyanate component and (B) a photosensitive component. In general formula (I), A represents a single bond or a bivalent linking group containing an atom selected from a carbon atom, a hydrogen atom and an oxygen atom; B represents a monovalent organic group; R1 to R5 independently represent a hydrogen atom or an alkyl group; and m represents an integer of 0 to 3 and n represents an integer of 0 to 3, wherein m+n is not 0.