PROCESS FOR COATING SUBSTRATES HAVING POLAR SURFACES WITH POLYURETHANE LATEXES

摘要

Claimed is a substrate having a polar surface and, adherent thereto, a polyurethane polymer which was applied as a latex. The latexes of the present invention are chain extended in water with aminoethyl ethanolamine and are prepared and applied in the substantial absence of organic solvents. The prepolymers used to prepare the latexes are substantially free of ionic groups on the polymer backbone.