Substantially solvent-free aqueous polyurethane dispersions and methods of making and using the same are provided. The substantially solvent-free aqueous polyurethane dispersions are provided in a substantially solvent-free system of a prepolymer made by reacting at least one polyol, at least one polyisocyanate, at least one isocyanate-reactive compound comprising one or more ionic or potential ionic groups, and at least one isocyanate chain terminating agent.
提供了基本无溶剂的
水性聚
氨酯分散体及其制造和使用方法。基本无溶剂的
水性聚
氨酯分散体是在基本无溶剂的预聚物体系中提供的,该预聚物是由至少一种多元醇、至少一种多
异氰酸酯、至少一种包含一个或多个离子或潜在离子基团的
异氰酸酯反应化合物和至少一种
异氰酸酯链
终止剂反应而成。