High molecular weight water-soluble polymers and...

Details High molecular weight water-soluble polymers and... High molecular weight water-soluble polymers and...

C - Chemistry, Metallurgy

08

F

402/322, 134/39,

C08F 28/02 (2006.01) C02F 1/54 (2006.01) C02F 1/56 (2006.01) C08F 220/54 (2006.01)

Patent

CA 1225793

- 58 - ABSTRACT OF THE DISCLOSURE A high molecular weight, water-soluble polymer, water-in-oil emulsions thereof and a flocculating process using same are disclosed. The polymer may be represented by the formula: Image wherein A represents a repeating unit derived from a hydrophobic vinyl monomer having a water-solubility of less than about 5 weight %; R1 and R3 are each a hydrogen atom or a methyl group; R4 and R5 are each a hydrogen atom, a methyl group or an ethyl group; R2 represents a divalent hydrocarbon group having from 2 to 13 carbon atoms; X represents a monovalent cation; B represents a repeating unit derived from an ethylenically-unsaturated carboxylic acid or a salt thereof; m is about 0.1-10 mole %, n is about 1-40 mole %, p is about 20-98.9 mole %, and q is about 0-40 mole % with the proviso that m + n + p + q = 100 mole % and r is a large positive integer. D-13,858

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