| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a urethane (meth)acrylate-containing resin composition formable of a cured coating film which causes small shrinkage on curing and is less liable to curl even when inorganic fine particles are not added or a high molecular weight is not provided to the urethane (meth)acrylate-based compound, and a coating agent using the resin composition. <P>SOLUTION: The resin composition contains a urethane (meth)acrylate obtained by reacting hydroxy groups in a (meth)acrylic acid adduct (A) of pentaerythritol having a hydroxyl value of ≥130 mgKOH/g with isocyanate groups of a polyisocyanate compound (B). <P>COPYRIGHT: (C)2013,JPO&INPIT |
