| abstract |
(57) [Summary] [Purpose] It is extremely practical because it has excellent water dispersion stability, storage stability, and mechanical properties such as film-forming property and toughness. It is to provide a highly aqueous crosslinked polyurethane. [Structure] A specific urethane obtained by condensing a mixture of a macromonomer having two hydroxyl groups, a diisocyanate compound, and, if necessary, a diol compound or a diolcarboxylic acid compound. Consisting of crosslinking the prepolymer in water, A method for producing an aqueous crosslinked polyurethane. |