C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/48
C02F 1/56 (2006.01) C02F 1/52 (2006.01) C02F 1/54 (2006.01) D21H 21/10 (2006.01) D21H 17/37 (2006.01) D21H 17/43 (2006.01) D21H 17/45 (2006.01)
Patent
CA 1277785
ABSTRACT Flocculation Procsses A cross linked high molecular weight polymer formed from a water soluble monomer or blend of monomers and which has IV and/or solubility and/or rheology properties indicating that it would be unsuitable for use as a flocculant can be used as a flocculant after shearing the polymeric material. The shearing may be applied to the polymeric material before addition to the suspension that is to be flocculated or can be applied to the suspension that is being flocculated. The shearing increases the intrinsic viscosity of the polymeric material and can improve its rheology and solubility. The polymeric material must be of high molecular weight.
507509
Farrar David
Field John Rodney
Flesher Peter
Whittaker Tony
Borden Ladner Gervais Llp
Ciba Specialty Chemicals Water Treatments Limited
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