Patent ID: 8501391
Filing Date: 2013-08-06
Classification: B41N,G03F,Y10T

Abstract:
1. A photosensitive resin composition, comprising: 100 parts by mass of a polyurethane prepolymer having an ethylenically unsaturated group; 10 to 150 parts by mass of an ethylenically unsaturated compound; and 0.01 to 10 parts by mass of a photopolymerization initiator, wherein said ethylenically unsaturated compound comprises 0.1 to 10 parts by mass of a polyfunctional ethylenically unsaturated compound having 6 or more (meth)acryloyl groups in a molecule thereof with respect to 100 parts by mass of said polyurethane prepolymer, wherein the polyurethane prepolymer is a reaction product of a polyurethane having isocyanate groups at its terminals, which is a reaction product of a polyol and a polyisocyanate, and a compound having an active hydrogen and an ethylenically unsaturated group in its molecule, or a reaction product of a polyurethane having hydroxyl groups at its terminals, which is a product of a polyol and a polyisocyanate, and a compound having an isocyanate group and an ethylenically unsaturated group in its molecule, and wherein said polyfunctional ethylenically unsaturated compound comprises a urethane-based polyfunctional ethylenically unsaturated compound obtained by reacting a polyisocyanate with (meth)acrylating agents.