Cationic acrylamide emulsion polymer brine thickeners

Details Cationic acrylamide emulsion polymer brine thickeners Cationic acrylamide emulsion polymer brine thickeners

C - Chemistry, Metallurgy

09

K

31/23

C09K 8/12 (2006.01)

Patent

CA 1255090

ABSTRACT OF THE DISCLOSURE Cationic emulsion polymers useful as thickening agents in aqueous dense brine solutions are disclosed. The cationic polymers are water- in-oil emulsion polymers of acrylamide or methacrylamide and a cationic monomer. The polymers have an intrinsic viscosity in 1.0 N KCl of at least 1 dl./g. and preferably have an acrylamide or methacrylamide to cationic monomer molar ratio of about 60:40 to 95:5.

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