| 摘要 |
PURPOSE: A self-healing photocurable resin composition and a coating composition containing the same are provided to enhance cohesive property with materials, contamination properties, extension rate, hardness, workability and yellowing resistance. CONSTITUTION: A self-healing photocurable resin composition comprises a urethane(meth)acrylate prepolymer which is a copolymer of diisocyanate compound, monofunctional diol, polyol, and hydroxyl group-containing (meth) acrylate and a (meta) acrylate monomer. The average molecular weight of the urethane(meth)acrylate prepolymer is 2000-10000. The average per molecule urethane bond is 6-22. The coating composition comprises a self medication light curing resin composition, a photoinitiator and a quenching agent. |
