URETHANE EMULSION

摘要

Disclosed is a urethane emulsion exhibiting excellent stability, whose cured product is excellent in water resistance. Specifically disclosed is a urethane emulsion obtained by stirring a urethane prepolymer composition containing a carboxylated urethane prepolymer, water and a neutralizing agent at a shear rate of 5,000-19,000 s^-1. The carboxylated urethane prepolymer is obtained by reacting a polyisocyanate compound having two or more isocyanate groups, a polyol compound having two or more hydroxy groups and a carboxylated compound having two or more hydroxy groups and a carboxy group under such a condition that the molar ratio of the isocyanate group to the carboxy group is within the range of 12-200.