Nitrogenous condensation products

Details Nitrogenous condensation products Nitrogenous condensation products

C - Chemistry, Metallurgy

08

L

9/51, 400/7939

C08L 79/02 (2006.01) C08G 73/02 (2006.01) C08G 73/04 (2006.01) C08G 81/00 (2006.01) D21C 9/18 (2006.01)

Patent

CA 1063276

ABSTRACT OF THE DISCLOSURE Production of water-sol?ble crosslinked auxiliari?s for the papermaking industry by reacting (a) one equivalent of NH groups of a polyalkylene polyamine having from 15 to 500 alkyleneimine units with (b) from 0.001 to 0.08 mole of a reaction product obtained from a polyalkylene oxide having from 8 to 100 alkylene oxide units with epichlorohydrin, in aqueous solution at a temperature of from 20° to 100°C. The viscosity of an aqueous solution containing 20% by weight of the crosslinked auxiliaries is from 300 to 1,500 centi- poises (20°C).

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