Cationic polymers

C - Chemistry – Metallurgy – 08 – F

Patent

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402/403, 362/51

C08F 222/22 (2006.01) B01D 21/01 (2006.01) C02F 1/54 (2006.01) C08F 220/34 (2006.01) C08F 220/56 (2006.01)

Patent

CA 1338424

An improved cationic water-soluble polymer is prepared from acrylamide, a cationic monomer such as dimethylaminoethyl methacrylate dimethylsulfate quaternary, and a waste stream which is produced as a result of the transesterification reaction between dialkylamino alcohols and acrylates which is used to prepare the cationic monomer. The polymers are especially useful in dewatering applications.

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