Patent ID: 7670389

Claim:
A process for producing a water-soluble or water-dispersible polymer comprising reacting components (a) one or more polyalkylenepolyamines, polyamidoamines, ethyleneimine-grafted polyamidoamines, or mixtures thereof, (b) one or more crosslinkers having at least bifunctionality, and (c) one or more monoethylenically unsaturated carboxylic acids, salts, esters, amides or nitriles of monoethylenically unsaturated carboxylic acids, chlorocarboxylic acids, glycidyl compounds, or mixtures thereof, wherein said component (a) has an average molecular weight M w ranging from 20,000 to 2,000,000, wherein the molar ratio of the total number of hydrogen atoms bonded to nitrogen in said component (a) to said component (c) ranges from 1:0.7 to 1:0.9, and wherein component (a) is reacted with component (b) to crosslink, and the reaction product thereof is then reacted with component (c).