| 摘要 |
<p>A urethane (meth)acrylate oligomer which has a low viscosity and gives a flexible cured product having a low surface tackiness, is provided. It is obtainable by reacting a polyol component comprising a polyoxyalkylene polyol which has from 2 to 4 hydroxyl groups, a hydroxyl value VOH (mgKOH/g) of from 5 to 115 and a total degree of unsaturation VUS (meq/g) satisfying VUS</= (0.45/VOH)+0.02, with a polyisocyanate compound and a hydroxylated (meth)acrylate compound.</p> |
