Quaternized tertiary aminomethyl acrylamide polymer...

Details Quaternized tertiary aminomethyl acrylamide polymer... Quaternized tertiary aminomethyl acrylamide polymer...

C - Chemistry, Metallurgy

08

F

C08F 20/60 (2006.01) C08F 6/14 (2006.01) C08F 8/00 (2006.01) C08F 8/32 (2006.01) C08F 8/44 (2006.01)

Patent

CA 2115412

TITLE OF THE INVENTION QUATERNIZED TERTIARY AMINOMETHYL ACRYLAMIDE POLYMER MICROEMULSIONS WITH IMPROVED PERFORMANCE ABSTRACT OF THE PRESENT INVENTION Quaternized tertiary aminomethyl acrylamide polymer emulsions are treated by 1) adjusting the pH to about 3.6 to about 4.8, 2) adding a formaldehyde scavenger, 3) adjusting the water content of the aqueous phase to result in about 10-45 weight percent of quaternized aminomethylated acrylamide polymer and 4) heating the resultant emulsion at-from about 40°C to about 80°C for about 3 to about 20 hours so as to render them more stable, capable of inversion in water independent of water temperature or pH of the medium flocculant and superior dewatering ability.

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