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Publication numberUSRE28576 F1
Publication typeGrant
Publication dateDec 6, 1983
Filing dateNov 9, 1973
Priority dateDec 15, 1970
Publication numberUS RE28576 F1, US RE28576F1, US-F1-RE28576, USRE28576 F1, USRE28576F1
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet

US RE28576 F1
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4845192 *Mar 26, 1986Jul 4, 1989Diatec PolymersNondestructive high shear cutting
US5100561 *Jun 6, 1990Mar 31, 1992Betz Laboratories, Inc.Cationic polymers for sludge dewatering
US5124376 *Apr 22, 1991Jun 23, 1992Phillips Petroleum CompanyUse of phenol as rapid inverse latex inversion promoter and solution viscosity enhancer
US5132284 *Dec 15, 1989Jul 21, 1992National Starch And Chemical Investment Holding CorporationThickeners, stabilizers; papermaking, oil drilling; guar gum
US5132285 *Dec 19, 1989Jul 21, 1992National Starch And Chemical Investment Holding CorporationOr enhancing water retention, graft copolymerizing a polysaccharide with a cationic/anionic monomer pair or a zwitterionic monomer, thermal initiator, dispersing resultant polyampholyte in aqueous media
US5176748 *May 21, 1991Jan 5, 1993Bercen, Inc.Paper sizing
US5183576 *Aug 9, 1991Feb 2, 1993Betz Laboratories, Inc.Waste water treatment by adding homopolymer of acryoxyethyl trimethyl ammonium chloride or methacryoxyethyl trimethyl ammonium chloride
US5356988 *Jun 22, 1992Oct 18, 1994Cargill, IncorporatedDispersing acrylic polymer and base in organic solvent to form salt, mixing with water to form azeotrope, heating to remove solvent, condensing solvent, separating from water, returning water to mixture
US5368744 *Aug 3, 1993Nov 29, 1994Betz Laboratories, Inc.Methods for treating wastewater
US5380771 *Jun 22, 1992Jan 10, 1995Cargill IncorporatedAqueous dispersion of amine salts of an acrylic polymer
US5395897 *Apr 25, 1994Mar 7, 1995Nalco Chemical CompanyHigh molecular weight substituted amides from polycarboxylic acids
US5512636 *Sep 6, 1994Apr 30, 1996Betz Laboratories, Inc.Cationic graft polymer agglomeration agents for mineral bearing ores
US5639397 *Apr 12, 1996Jun 17, 1997Betzdearborn Inc.Applying to dust producing material an aqueous solution of a water soluble amide, quaternary ammonium salt-containing graft polymer
US5668219 *Mar 22, 1996Sep 16, 1997Betzdearborn Inc.Cationic block polymer agglomeration agents for mineral bearing ores
US5730905 *Jun 21, 1994Mar 24, 1998Betzdearborn Inc.Method of resolving oil and water emulsions
US5800719 *May 14, 1997Sep 1, 1998Betzdearborn Inc.Method for dewatering drinking sludge using a water soluble block copolymer
US5837215 *Jul 18, 1997Nov 17, 1998Nalco Chemical CompanyMethod of removing insoluble materials from bayer process with fatty acid and fatty acid free polymer flocculants
US6210585Mar 30, 2000Apr 3, 2001Nalco Chemical CompanyAdding to fluids in industrial water system low foaming latex polymer flocculant prepared by using tallow amine ethoxylate/polyoxyethylene oleyl ether emulsifier to separate solids and prevent foaming
US6887935Apr 2, 2004May 3, 2005Ge Betz, Inc.For use as dewatering aids in aqueous systems that include oily sludge
US7250448Dec 6, 2002Jul 31, 2007Hercules IncorporatedRetention and drainage aids in the papermaking process
US7396874Dec 4, 2003Jul 8, 2008Hercules IncorporatedPapermakings; drainage aid; water in oil emulsion
US7429625Dec 14, 2004Sep 30, 2008Hercules IncorporatedComprises blend of breaker surfactants containing ethylene oxide-propylene oxide copolymers, for water in oil polymer emulsion
US7615135Dec 13, 2005Nov 10, 2009Hercules IncorporatedCellulose fibers; anionic sulonate-containing polymers
EP0702037A1Jun 16, 1995Mar 20, 1996Betz Europe, Inc.Water soluble graft copolymers for deinking process water clarification
Classifications
International ClassificationC02F1/52, C08J3/03
Cooperative ClassificationC02F1/5227, C08J3/03, C08J2300/10
European ClassificationC08J3/03, C02F1/52C