Crosslinkable urethane resins containing vinyl and carboxyl groups

摘要: A crosslinkable, especially photopolymerizable urethane resin soluble in organic solvent, suitable as starting materials for photoresist lacquers and the production of photopolymer printing plates comprising a reaction product polyepoxide having more than one 1,2-epoxide group per molecule with acrylic and/or methacrylic acid so that from 60 to 100 mole % groups are converted into β-hydroxy or ester groups; 30 90 said been reacted an isocyanate subsequently 10 70 semiester cyclic dicarboxylic anhydride.