High performance polymer flocculating agents nonionic polymers
AssigneeCytec Technology Corp.
InventorsRoger Edgar Neff, Joseph Jacinto Pellon, Roderick Glyn Ryles
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Abstract
Water-soluble, branched, high molecular weight, cationic and non-ionic polymeric flocculants capable of manifesting their full performance potential without shearing are produced by polymerizing ethylenically unsaturated cationic and non-ionic monomers and a branching agent in the presence of a chain-transfer agent. They are useful as flocculating agents for releasing water from dispersions of suspended solids.
Claims6
An unsheared, water-soluble, branched, nonionic, polymeric flocculant comprising at least one ethylenically unsaturated non-ionic monomer, said polymeric flocculant having a branching agent content of from about 4 to about 80 molar parts per million based on initial monomer content, and a solution viscosity of at least about 1.9 mpa.multidot.s measured in a Brookfield viscometer with a UL adapter at 25.degree. C. on a 0.1 percent, by weight, polymer solution in 1M NaCl at 60 rpm, said flocculant being efficient when added as a true solution to dispersions of suspended solids for the purpose of releasing water therefrom.
Dependencies are inferred from the claim text.