| 摘要 |
PURPOSE: To provide the subject resin composition containing a specified oligomer mixture, an ethylenic unsaturated monomer and a photo-polymerization initiator, capable of forming a molding free from deformation with time and excellent in mechanical strength, impact resistance, heat resistance, dimensional stability, etc., and useful for a mechanical component, etc. CONSTITUTION: This is a resin composition containing (A) an urethane (meth) acrylate oligomer synthesized by reacting a diol of the formula [R<1> is a 1 to 12C (branched) divalent aliphatic hydrocarbon group or a 6 to 12C divalent aromatic hydrocarbon group; R<2> is a 1 to 10C (branched) divalent aliphatic hydrocarbon group or a 6 to 12C divalent aromatic hydrocarbon group; (n) is 1 to 20], a diisocyanate and an OH-containing (meth)acrylate, (B) a urethane (meth)acrylate oligomer synthesized by reacting a diisocyanate with an OH- containing (meth)acrylate, (C) an ethylenic unsaturated monomer and (D) a photopolymerization initiator. |
