ESTANE

MATERIALS UTILIZED IN PREPARING CONDENSATION POLYMERS-NAMELY, POLYISOCYANATES AND POLYFUNCTIONAL MATERIALS REACTIVE WITH POLYISOCYANATES WHICH CONTAIN A PLURALITY OF REACTIVE HYDROGENS SUCH AS HYDROXYL AND CARBOXYL TERMINATED POLYESTERS, SAID MATERIALS BEING ESPECIALLY ADAPTED TO FORM RUBBERS, RESINS, AND FOAMED CONDENSATION POLYMERS; AND THE RESULTING POLYMERS IN THE FORM OF RUBBERS, RESINS, AND SOLUTION OF THE SAME TO BE USED IN PREPARING ARTICLES, CEMENTS, AND COATINGS