To provide a photosensitive resin composition having excellent optical sensitivity and giving a cured product having excellent adhesiveness, pencil hardness, solvent resistance, acid resistance, heat resistance, gold plating resistance, etc.
The invention provides (A) a resin containing an unsaturated group and obtained by reacting (a) an epoxy compound having 2 glycidyl groups in the molecule with (b) a saturated monocarboxylic acid compound having an alcoholic hydroxyl group and reacting the hydroxyl group of the obtained epoxy carboxylate resin with (c) a monoisocyanate compound having ethylenic unsaturated group, (A') a resin containing an acid-modified unsaturated group and obtained by reacting the hydroxyl group of the unsaturated group-containing resin A with (d) a polybasic acid anhydride, and a photosensitive resin composition containing the above resin, and (B) a photopolymerization initiator and (C) a reactive crosslinking agent.
KURIHASHI TORU
KOYANAGI TAKAO
