Cationic water soluble polymeric reaction product of polyaminopolyureylene-epichlorohydrin and nitrogen compound

Claim 1

A cationic water soluble resin which is essentially non-thermosetting, said resin consisting essentially of the polymeric reaction product of (1) a water soluble or water dispersible polyaminopolyureylene--epihalohydrin base resin having epoxide moieties said base resin consisting essentially of the reaction product of urea and a polyamine containing at least three amine groups, at least one of which is a tertiary amine, in a mole ratio of the latter to the former of from about 0.7:1 to about 1.5:1 to form a polyaminoureylene containing free amine groups, at least 70% of which are tertiary amine groups, and then reacting, under alkaline conditions, the polyaminoureylene with epihalohydrin in a mole ratio of epihalohydrin to free amine groups in the polyaminoureylene of from about 1.0:1 to about 1.7:1, and (2) a nitrogen compound in an amount at least stoichiometrically equivalent to the epoxide moieties of the base resin, said nitrogen compound having the formula RRR'N wherein R is independently selected from the group consisting of hydrogen and C 1 -C 4 alkyl and wherein R' is selected from the group consisting of hydrogen, hydroxyl and C 1 -C 4 alkyl, said reaction between (1) and (2) being carried out at a temperature of from about 0°C. to about 150°C. and until substantially all epoxide moieties of the base resin have reacted with the nitrogen compound.