Water soluble graft copolymers and methods of use thereof

Details Water soluble graft copolymers and methods of use thereof Water soluble graft copolymers and methods of use thereof

C - Chemistry, Metallurgy

08

F

C08F 265/10 (2006.01) C02F 1/56 (2006.01) C08F 290/04 (2006.01)

Patent

CA 2061714

A water soluble graft copolymer useful for dewatering wastewater having the structure: (see formula I) wherein E is the repeat unit obtained after polymerization of an ~, ~ ethylenically unsaturated compound, the molar percentage of a:b is from about 95:5 to 5:95, with the proviso that the sum of a and b equals 100%; G comprises the structure: (see formula II) wherein d is a cationic monomer, R1, R2 and R3 are the same or different and are hydrogen or a lower alkyl group having C1 to C3, F is the salt of an ammonium cation and the molar percentage of c:d is from 95:5 to 5:95 with the proviso that the sum of c and d equals 100%.

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