Methylol derivatives of ureido-polyamines

Claim 1

A PROCESS OF PREPARING RESINOUS CONDENSATES WHICH COMPRISES REACTING BY HEATING TOGETHER AT 70* TO 150* C. A DIHALOALKANE OF NOT OVER THREE CARBON ATOMS HAVING A CHAIN OF TWO CARBON ATOMS BETWEEN THE HALOGEN ATOMS, SAID HALOGEN BEING A MEMBER OF THE CLASS CONSISTING OF CHLORINE AND BROMINE, AND A POLYETHYLENEPOLYAMINE OF A MOLECULAR WEIGHT OF AT LEAST 146, THE MOLE RATIO OF DIHALOALKANE TO POLYETHYLENEPOLYAMINE BEING AT LEAST 0.7:1 AND NOT EXCEEDING ABOUT 1.6:1 AND BEING CAPABLE OF YIELDING SOLUBLE CONDENSATION PRODUCTS, CONTINUING REACTING SAME UNTIL A 60% TO 65% AQUEOUS SOLUTION OF THE CONDENSATION PRODUCTS HAS A GARDNERHOLDT VISCOSITY OF N TO 23 AT 25* C., REACTING SAID PRODUCTS BY HEATING WITH UREA BETWEEN 100* AND 200* C. UNTIL A 50% AQUEOUS SOLUTION OF THE RESULTING REACTION PRODUCTS HAS A GARDNER-HOLDT VISCOSITY OF ABOUT B TO M AT 25* C., THE RATIO OF UREA TO -NH- GROUPS OF SAID NITROGENOUS CONDENSATION PRODUCTS BEING BETWEEN 0.2:1 AND 1.5:1, REACTING SAID RESULTING REACTION PRODUCTS IN AQUEOUS SOLUTION WITH FORMALDEHYDE TO FORM SOLUBLE RESINOUS CONDENSATES, THERE BEING USED AT LEAST 0.6 MOLE OF FORMALDEHYDE FOR EACH HYDROGEN PRESENT ON NITROGEN IN SAID NITROGENOUS CONDENSATION PRODUCTS.