AQUEOUS POLYURETHANE DISPERSIONS

摘要

In one aspect, the present invention encompasses aqueous polyurethane dispersions (PUDs) comprising aliphatic polycarbonate polyols derived from epoxides and CO2. In another aspect, the present invention encompasses coating and adhesive compositions derived from the inventive aqueous polyurethane dispersions. In other aspects, the present invention encompasses isocyanate-terminated prepolymers having a plurality of epoxide-CO2-derived polyol segments linked via urethane bonds formed from reaction with polyisocyanate compounds. Such prepolymers are useful for the manufacture of higher polymers and/or for the formulation of aqueous polyurethane dispersions.