| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel aqueous radiation-curable composition.SOLUTION: The composition of the present invention comprises at least one (meth)acrylated polyurethane prepolymer (A) obtained by reaction of at least one polyisocyanate compound (i), optionally at least one polyol (ii), at least one hydrophilic compound (iii) containing at least one reactive group reactable with an isocyanate group and allowing dispersion of polyurethane prepolymer in an aqueous medium directly or after reaction with a neutralizer to provide a salt, a (meth)acrylated compound (iv) containing at least two reactive groups reactable with an isocyanate group, and at least one (meth)acrylated compound (v) containing fundamentally one reactive group reactable with an isocyanate group, and optionally at least one ethylene unsaturated compound (B), and comprises a predetermined total amount of a polymerizable ethylene-unsaturated group. |
