AQUEOUS PHOTOSENSITIVE RESIN COMPOSITION AND PHOTOSENSITIVE RESIN PLATE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an aqueous photosensitive resin composition suitable for a printing resin plate and giving a cured body excellent in water and solvent resistances and having such an excellent flexibility that it does not crack even in the winter dry season. SOLUTION: The aqueous photosensitive resin composition comprises an aqueous dispersion containing a urethane oligomer (A) containing an anionic hydrophilic group and a hydrophobic polyoxyalkylene structure of the formula -(CH2)nO- (where (n) is an integer of >=3) in each molecule, having a photo- curable ethylenically unsaturated group at the end of each molecule and obtained by reacting diol compounds containing 75-95 wt.% diol compound having a polyoxyalkylene structure of the formula -(CH2)nO- with polyisocyanate.