| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a polyurethane resin emulsion that gives a dry coating excellent in solvent resistance and flexibility. <P>SOLUTION: The polyurethane resin emulsion contains a polyurethane resin (U) and water, wherein the polyurethane resin (U) is obtained from a urethane prepolymer (u) with an isocyanate terminal using a polycarbonate polyol as at least one kind of a polyol component, and contains, on a basis of the weight of the polyurethane resin (U), 0.1 to 1.5 wt.% of carboxyl group, 3.0 to 8.0 wt.% of urethane group and 0.1 to 9.0 wt.% of urea group. <P>COPYRIGHT: (C)2011,JPO&INPIT |
