Cationic water soluble polymeric reaction product of poly(diallylamine)-epihalohydrin 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 poly(diallylamine)--epihalohydrin base resin having epoxide moieties 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 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, said base resin (1) being the reaction product of (A) a linear polymer having units of the formula ##EQU5## where R is hydrogen or lower alkyl, and R' is hydrogen, alkyl or a substituted alkyl group wherein the substituent is a group which will not interfere with polymerization through a vinyl double bond and is selected from the group consisting of carboxylate, cyano, ether, amino, amide, hydrazide and hydroxyl groups and (B) from about 0.5 to about 1.5 moles of an epihalohydrin per mole of secondary plus tertiary amine present in said polymer, said product being formed at a temperature of from about 30° to about 80°C. and a pH of from about 7 to about 9.5.