Water soluble block copolymers and methods of use therof

Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...

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525273, 525263, 525294, 525299, 525308, C02F 156, C08F29300

Patent

active

052346048

ABSTRACT:
A composition and method of use thereof for the treatment of wastewater comprising a block copolymer having the formula: ##STR1## wherein E is a polymeric segment obtained from the polymerization of hydrophobic monomers, x when present is a nonionic monomer, y is a cationic monomer, R.sub.1 and R.sub.2 are the same or different and are H or a lower alkyl group from C.sub.1 to C.sub.3 and F is a salt of an ammonium cation.

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