| 摘要 |
PURPOSE:To obtain a rapidly curing photosensitive resin composition giving a film with superior bonding strength and shock resistance by mixing vinyl ester resin with an acrylic monomer, acrylic modified 1,4-polybutadiene, and a photopolymn. initiator. CONSTITUTION:The desired photosensitive resin composition is obtd. by mixing vinyl ester resin (A) with an acrylic monomer (B) such as 1,6-hexanediol diacrylate, terminal acrylic modified 1,4-polybutadiene (C) represented by one of the formulae (where R is H or CH3), and a photopolymn. initiator (D) such as benzoin ethyl ether. The amount of the component C is 10-70wt% of the amount of the composition. The component C is prepd. by successively reacting 1,4- polybutadiene having hydroxyl groups at terminals with toluene diisocyanate and an acrylic monomer having a hydroxyl group such as hydroxyethyl (meth)acrylate. |
