| 摘要 |
PROBLEM TO BE SOLVED: To provide a curable polycarbonate diol-starting urethane (meth)acrylate which is excellent in all physical properties such as adhesiveness, contamination resistance, hydrolysis resistance, chemical resistance, and flexibility, and is further excellent in apparent smoothness after curing, and a mixed composition using the same.SOLUTION: A urethane (meth)acrylate is a reaction product of an isocyanate compound (a) having at least two isocyanate groups, a polycarbonate diol (b) including a terminal hydroxyl, and a hydroxyl-containing (meth)acrylate (c). In a coating film obtained by ultraviolet-curing a mixture including the following components: 20 pts. of trimethylol propane acrylate, 30 pts. of urethane (meth)acrylate (as a solid content), 52 pts. of n-butyl acetate and 2 pts of 1-hydroxycyclohexyl phenyl ketone, no peeling is observed, and the color difference (&Dgr;E) before and after removal of oil-based black ink with isopropyl alcohol is 3 or less. |
