INTERPENETRATING NETWORKS OF POLYMERS

摘要

A process for producing a coating composition having superior solvent resistance and film hardness comprising an interpenetrating network of a polyurethane component and a functionalized waterborne polymer, wherein the polyurethane component is prepared in the presence of the functionalized waterborne polymer and said polyurethane component and said waterborne polym er are crosslinked directly or indirectly via the chain extender.