POLYURETHANE DISPERSION AND PROCESS FOR PRODUCING SAME

摘要

A polyurethane dispersion which comprises water and, dispersed therein, a water-compatible polyurethane resin obtained by reacting isocyanate-terminated urethane prepolymers with a chain extender. The isocyanate-terminated urethane prepolymers comprise an adhesive urethane prepolymer for imparting adhesive properties and a gas-barrier urethane prepolymer for imparting gas-barrier properties.