URETHANE (METH)ACRYLATE COMPOSITION AND SEALING MATERIAL

摘要

Disclosed is a urethane (meth)acrylate composition which is obtained by reacting a polyester polyol obtained from a polyvalent carboxylic acid and a polyhydric alcohol, a polyisocyanate and a (meth)acrylate having an active hydrogen. The urethane (meth)acrylate composition is characterized in that a part of the polyhydric alcohol is composed of a diol having one side chain on a straight chain having 3-7 carbon atoms, and the polyisocyanate contains at least one member selected from hexamethylene diisocyanate, diphenylmethane diisocyanate, hydrogenated diphenylmethane diisocyanate and tetramethylene diisocyanate.