USRE28474E - Process for rapidly dissolving water-soluble polymers - Google Patents

Process for rapidly dissolving water-soluble polymers Download PDF

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Publication number
USRE28474E
USRE28474E US41383173A USRE28474E US RE28474 E USRE28474 E US RE28474E US 41383173 A US41383173 A US 41383173A US RE28474 E USRE28474 E US RE28474E
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Prior art keywords
soluble polymers
rapidly dissolving
dissolving water
rapidly
water
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Expired
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ChampionX LLC
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Priority claimed from US92031A external-priority patent/US3624019A/en
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Priority to US41383173 priority Critical patent/USRE28474F1/en
Application granted granted Critical
Publication of USRE28474E publication Critical patent/USRE28474E/en
Publication of USRE28474F1 publication Critical patent/USRE28474F1/en
Assigned to NALCO CHEMICAL COMPANY A CORP OF DE reassignment NALCO CHEMICAL COMPANY A CORP OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ANDERSON, DONALD R.
Assigned to NALCO CHEMICAL COMPANY A CORP OF DE reassignment NALCO CHEMICAL COMPANY A CORP OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FRISQUE, ALVIN J.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5227—Processes for facilitating the dissolution of solid flocculants in water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/24—Homopolymers or copolymers of amides or imides
    • C08L33/26—Homopolymers or copolymers of acrylamide or methacrylamide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2300/00—Characterised by the use of unspecified polymers
    • C08J2300/10—Polymers characterised by the presence of specified groups, e.g. terminal or pendant functional groups

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Dispersion Chemistry (AREA)
US41383173 1970-12-15 1973-11-08 Process for rapidly dissolving water-soluble polymers Expired - Lifetime USRE28474F1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US41383173 USRE28474F1 (en) 1970-12-15 1973-11-08 Process for rapidly dissolving water-soluble polymers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US92031A US3624019A (en) 1970-12-15 1970-12-15 Process for rapidly dissolving water-soluble polymers
US41383173 USRE28474F1 (en) 1970-12-15 1973-11-08 Process for rapidly dissolving water-soluble polymers

Publications (2)

Publication Number Publication Date
USRE28474E true USRE28474E (en) 1974-07-08
USRE28474F1 USRE28474F1 (en) 1983-12-20

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US41383173 Expired - Lifetime USRE28474F1 (en) 1970-12-15 1973-11-08 Process for rapidly dissolving water-soluble polymers

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US (1) USRE28474F1 (en)

Cited By (90)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4212784A (en) 1979-05-04 1980-07-15 Nalco Chemical Co. Polymerization of water soluble polymers in water-in-oil latex form to produce emulsions containing high polymer solids levels and low oil levels
US4252706A (en) 1979-10-31 1981-02-24 Nalco Chemical Company Method for precisely controlling the dissolution rate of high molecular weight water-soluble vinyl polymers
EP0042678A1 (en) * 1980-06-13 1981-12-30 Scott Bader Company Limited Method of thickening
US4375529A (en) 1981-08-03 1983-03-01 Nalco Chemical Company Hydrogenation of residual monomers in partially polymerized acrylamide copolymers in latex form
EP0083004A2 (en) * 1981-12-24 1983-07-06 Bayer Ag Aqueous preparation and its use in making ceramic masses
US4413087A (en) 1982-08-23 1983-11-01 Nalco Chemical Company Stable polymer solutions for spray drift control
US4427821A (en) 1981-08-03 1984-01-24 Nalco Chemical Company Hydrogenation of residual monomers in partially polymerized acrylamide copolymers in latex form
US4435528A (en) 1981-12-21 1984-03-06 The Dow Chemical Company Concentrated emulsions of water-soluble polymers
US4443576A (en) 1982-03-29 1984-04-17 Nalco Chemical Company Terpolymer composition
US4499214A (en) 1983-05-03 1985-02-12 Diachem Industries, Inc. Method of rapidly dissolving polymers in water
US4508594A (en) 1984-06-28 1985-04-02 Nalco Chemical Company Polyaldehyde/polyacetal compositions
US4525515A (en) 1982-07-30 1985-06-25 Rhone-Poulenc Specialites Chimiques Storage-stable, pumpable concentrated suspensions of water-soluble polymers
US4529794A (en) 1984-03-29 1985-07-16 Diatec Polymers Method of rapidly dissolving polymers in water
US4530943A (en) 1982-08-02 1985-07-23 Chemische Fabrik Stockhausen Gmbh Process for the rapid dissolution of water-soluble polymers
US4552908A (en) 1983-08-30 1985-11-12 Imperial Chemical Industries Plc Water-dilutable aqueous coating compositions
US4619967A (en) 1983-05-26 1986-10-28 The Dow Chemical Company Multi-modal emulsions of water-soluble polymers
US4666964A (en) 1983-12-16 1987-05-19 Calgon Corporation Method for producing free-flowing water-soluble polymer gels
US4668715A (en) 1985-03-25 1987-05-26 Nalco Chemical Company Rapid solubilization of dry polymers
US4681912A (en) 1984-06-07 1987-07-21 Institut Francais Du Petrole Process for manufacturing inverse microlatices of watersoluble copolymers, the resultant inverse microlatices and their use for improving the production of hydrocarbons
US4687807A (en) 1987-02-13 1987-08-18 Nalco Chemical Company Use of amidase for reducing the acrylamide content of water-in-oil emulsions containing acrylamide polymers
US4734103A (en) 1987-07-22 1988-03-29 Nalco Chemical Company Viscosity/drag reducing additive for high solids black liquor
US4745154A (en) 1986-04-14 1988-05-17 Alco Chemical Corporation Water soluble polymers, their preparation and their uses
US4751259A (en) 1987-08-05 1988-06-14 Nalco Chemical Company Compositions for iron ore agglomeration
US4771094A (en) 1987-06-03 1988-09-13 Nalco Chemical Company Compositions for suspending solid particles in aqueous media
US4786679A (en) 1987-02-13 1988-11-22 Nalco Chemical Company Water-in-oil emulsions of amidase
US4786318A (en) 1986-08-14 1988-11-22 Nalco Chemical Company Thickening of gold process slurries
US4795789A (en) 1987-10-26 1989-01-03 Nalco Chemical Company Process for making acrylamido methane sulfonic acid polymers
US4800071A (en) 1988-05-03 1989-01-24 Nalco Chemical Company Filtration aids for removal of calcium solids from aqueous phosphoric acid
US4845192A (en) * 1984-03-29 1989-07-04 Diatec Polymers Method of rapidly dissolving polymer gels in water
US4868248A (en) 1989-03-22 1989-09-19 Nalco Chemical Company Polyhydroxyamic acid polymers from polyacrylic acids
US4874588A (en) 1984-03-29 1989-10-17 Diatec Polymers Method and apparatus for rapidly dissolving polymers in water
US4875935A (en) 1988-11-04 1989-10-24 Nalco Chemical Company Anionic acrylamide polymers as copper ore agglomeration aids
US4886872A (en) 1989-05-22 1989-12-12 Nalco Chemical Company Novel cationic hydroxamate polymers
US4898611A (en) 1988-03-31 1990-02-06 Nalco Chemical Company Polymeric ore agglomeration aids
US4915859A (en) 1988-09-16 1990-04-10 Nalco Chemical Company Micro-emulsion drawing fluids for steel and aluminum
US4921903A (en) 1988-10-11 1990-05-01 Nalco Chemical Company Process for preparing high molecular weight hydrophobic acrylamide polymers
US4948464A (en) 1989-09-05 1990-08-14 Nalco Chemical Company Acrylamide-2-acrylamido-2-methylpropanesulfonic acid polymers as formation aids in wet laid nonwovens production
US4952642A (en) 1987-10-26 1990-08-28 Nalco Chemical Company Process for making acrylamido methane sulfonic acid polymers
US4954547A (en) 1987-04-23 1990-09-04 Nalco Chemical Company Use of fatty acids for improvement in shear stability of water-in-oil emulsions
US4964999A (en) * 1987-06-15 1990-10-23 Hi-Tek Polymers, Inc. Process for forming stable emulsions of water soluble polysaccharides in hydrocarbon liquids
US5006596A (en) 1990-02-09 1991-04-09 Betz Laboratories, Inc. Self-inverting, water-in-oil emulsions
US5100561A (en) * 1990-06-06 1992-03-31 Betz Laboratories, Inc. Cationic polymers for sludge dewatering
US5100951A (en) * 1988-09-23 1992-03-31 Betz Laboratories, Inc. Stable blends of cationic water-in-oil emulsion polymers and cationic aqueous solution polymers
US5100631A (en) * 1988-12-16 1992-03-31 Nalco Chemical Company Heap leaching ores containing gold and silver
US5112391A (en) * 1990-03-30 1992-05-12 Nalco Chemical Company Method of forming ore pellets with superabsorbent polymer
US5124376A (en) * 1991-04-22 1992-06-23 Phillips Petroleum Company Use of phenol as rapid inverse latex inversion promoter and solution viscosity enhancer
US5134118A (en) * 1989-11-06 1992-07-28 M-I Drilling Fluids Company Aqueous based drilling fluid
US5155156A (en) * 1988-06-15 1992-10-13 Scanley Clyde S Finely divided water soluble polymers and method for the production thereof
US5169540A (en) * 1988-09-23 1992-12-08 Betz Laboratories, Inc. Stable blends of cationic water-in-oil emulsion polymers and cationic aqueous solution polymers
US5176748A (en) * 1988-07-05 1993-01-05 Bercen, Inc. Alkenyl succinic anhydride emulsion
US5183576A (en) * 1990-06-06 1993-02-02 Betz Laboratories, Inc. Cationic polymers for sludge dewatering
US5256331A (en) * 1991-05-23 1993-10-26 American Cyanamid Company Water-in-oil emulsions containing hydroxylamine
US5286391A (en) * 1993-02-04 1994-02-15 Nalco Chemical Company Red mud flocculation
US5356988A (en) * 1991-07-17 1994-10-18 Cargill, Incorporated Acrylic polymer aqueous dispersion made through a micro dispersion
US5368744A (en) * 1993-08-03 1994-11-29 Betz Laboratories, Inc. Methods for treating wastewater
US5395897A (en) * 1994-01-18 1995-03-07 Nalco Chemical Company High molecular weight substituted amides from polycarboxylic acids
US5478477A (en) * 1994-11-04 1995-12-26 Nalco Chemical Company Use of alginates to treat bauxite red mud
EP0702037A1 (en) 1994-09-16 1996-03-20 Betz Europe, Inc. Water soluble graft copolymers for deinking process water clarification
US5512636A (en) * 1994-09-06 1996-04-30 Betz Laboratories, Inc. Cationic graft polymer agglomeration agents for mineral bearing ores
US5639397A (en) * 1996-04-12 1997-06-17 Betzdearborn Inc. Method for suppressing dust emissions
US5651861A (en) * 1995-12-18 1997-07-29 Rhone-Poulenc Inc. Process for removing inks from waste paper
US5730905A (en) * 1994-06-21 1998-03-24 Betzdearborn Inc. Method of resolving oil and water emulsions
US5756118A (en) * 1991-10-16 1998-05-26 Richardson-Vicks Inc. Enhanced skin penetration system for improved topical delivery of drugs
US5800719A (en) * 1997-05-14 1998-09-01 Betzdearborn Inc. Method for dewatering drinking sludge using a water soluble block copolymer
US5837215A (en) * 1995-07-26 1998-11-17 Nalco Chemical Company Method of removing insoluble materials from bayer process with fatty acid and fatty acid free polymer flocculants
US5891254A (en) * 1997-06-13 1999-04-06 Cytec Technology Corporation Method for purifying sugar solutions using polyacrylamides
US6210585B1 (en) 1995-07-26 2001-04-03 Nalco Chemical Company Fatty acid free latex polymer flocculants
WO2001022795A1 (en) 1999-09-29 2001-04-05 Snf S.A. Flocculating (co)polymer additives and methods for reducing tare in harvested tuber plants
US6608137B1 (en) * 1991-05-23 2003-08-19 Cytec Technology Corp. Microdispersions of hydroxamated polymers
US6608006B2 (en) * 2001-09-14 2003-08-19 Halliburton Energy Services, Inc. Methods of drilling well bores using invertible oil external-water internal drilling fluids
US20040209780A1 (en) * 2003-04-18 2004-10-21 Harris Phillip C. Methods of treating subterranean formations using hydrophobically modified polymers and compositions of the same
US20040259738A1 (en) * 1996-08-02 2004-12-23 Patel Arvind D. Method for using reversible phase oil-based drilling fluid
US20050143506A1 (en) * 2003-12-15 2005-06-30 Harrington John C. Inversion of inverse emulsion polymers
US20060102306A1 (en) * 2002-07-19 2006-05-18 Kao Corporation Paper improver
US20060127351A1 (en) * 2004-12-14 2006-06-15 Hercules Incorporated Process for preparing high molar mass polymers
US20060185806A1 (en) * 2004-12-14 2006-08-24 Harrington John C Retention and drainage aids
US7125826B2 (en) 2001-09-14 2006-10-24 Halliburton Energy Services, Inc. Methods of using invertible oil external-water internal fluids in subterranean applications
US7250448B2 (en) 2001-12-07 2007-07-31 Hercules Incorporated Anionic copolymers prepared in an inverse emulsion matrix and their use in preparing cellulosic fiber compositions
US20080139411A1 (en) * 2006-12-07 2008-06-12 Harris Phillip C Methods of treating subterranean formations using hydrophobically modified polymers and compositions of the same
US7396874B2 (en) 2002-12-06 2008-07-08 Hercules Incorporated Cationic or amphoteric copolymers prepared in an inverse emulsion matrix and their use in preparing cellulosic fiber compositions
WO2012065283A1 (en) 2010-11-18 2012-05-24 General Electric Company Methods for improving membrane bioreactor systems
US8852400B2 (en) 2010-11-02 2014-10-07 Ecolab Usa Inc. Emulsification of alkenyl succinic anhydride with an amine-containing homopolymer or copolymer
US9616263B2 (en) 2009-09-30 2017-04-11 Earthclean Corporation Biodegradable suspension forming compositions
WO2017065740A1 (en) 2015-10-12 2017-04-20 Solenis Technologies, L.P. Method of increasing drainage performance of a pulp slurry during manufacture of paper products, and products therefrom
US9702086B2 (en) 2014-10-06 2017-07-11 Ecolab Usa Inc. Method of increasing paper strength using an amine containing polymer composition
US9920482B2 (en) 2014-10-06 2018-03-20 Ecolab Usa Inc. Method of increasing paper strength
US9951475B2 (en) 2014-01-16 2018-04-24 Ecolab Usa Inc. Wet end chemicals for dry end strength in paper
US10145067B2 (en) 2007-09-12 2018-12-04 Ecolab Usa Inc. Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermaking
US10648133B2 (en) 2016-05-13 2020-05-12 Ecolab Usa Inc. Tissue dust reduction
US10889939B2 (en) 2015-12-25 2021-01-12 Ecolab Usa Inc. Sizing method for making paper and paper prepared thereof

Cited By (105)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4212784A (en) 1979-05-04 1980-07-15 Nalco Chemical Co. Polymerization of water soluble polymers in water-in-oil latex form to produce emulsions containing high polymer solids levels and low oil levels
US4252706A (en) 1979-10-31 1981-02-24 Nalco Chemical Company Method for precisely controlling the dissolution rate of high molecular weight water-soluble vinyl polymers
EP0042678A1 (en) * 1980-06-13 1981-12-30 Scott Bader Company Limited Method of thickening
US4375529A (en) 1981-08-03 1983-03-01 Nalco Chemical Company Hydrogenation of residual monomers in partially polymerized acrylamide copolymers in latex form
US4427821A (en) 1981-08-03 1984-01-24 Nalco Chemical Company Hydrogenation of residual monomers in partially polymerized acrylamide copolymers in latex form
US4435528A (en) 1981-12-21 1984-03-06 The Dow Chemical Company Concentrated emulsions of water-soluble polymers
EP0083004A3 (en) * 1981-12-24 1984-09-05 Bayer Ag Aqueous preparation and its use in making ceramic masses
EP0083004A2 (en) * 1981-12-24 1983-07-06 Bayer Ag Aqueous preparation and its use in making ceramic masses
US4443576A (en) 1982-03-29 1984-04-17 Nalco Chemical Company Terpolymer composition
US4525515A (en) 1982-07-30 1985-06-25 Rhone-Poulenc Specialites Chimiques Storage-stable, pumpable concentrated suspensions of water-soluble polymers
US4530943A (en) 1982-08-02 1985-07-23 Chemische Fabrik Stockhausen Gmbh Process for the rapid dissolution of water-soluble polymers
US4413087A (en) 1982-08-23 1983-11-01 Nalco Chemical Company Stable polymer solutions for spray drift control
US4499214A (en) 1983-05-03 1985-02-12 Diachem Industries, Inc. Method of rapidly dissolving polymers in water
US4619967A (en) 1983-05-26 1986-10-28 The Dow Chemical Company Multi-modal emulsions of water-soluble polymers
US4552908A (en) 1983-08-30 1985-11-12 Imperial Chemical Industries Plc Water-dilutable aqueous coating compositions
US4666964A (en) 1983-12-16 1987-05-19 Calgon Corporation Method for producing free-flowing water-soluble polymer gels
US4529794A (en) 1984-03-29 1985-07-16 Diatec Polymers Method of rapidly dissolving polymers in water
US4874588A (en) 1984-03-29 1989-10-17 Diatec Polymers Method and apparatus for rapidly dissolving polymers in water
US4845192A (en) * 1984-03-29 1989-07-04 Diatec Polymers Method of rapidly dissolving polymer gels in water
US4681912A (en) 1984-06-07 1987-07-21 Institut Francais Du Petrole Process for manufacturing inverse microlatices of watersoluble copolymers, the resultant inverse microlatices and their use for improving the production of hydrocarbons
US4508594A (en) 1984-06-28 1985-04-02 Nalco Chemical Company Polyaldehyde/polyacetal compositions
US4668715A (en) 1985-03-25 1987-05-26 Nalco Chemical Company Rapid solubilization of dry polymers
US4745154A (en) 1986-04-14 1988-05-17 Alco Chemical Corporation Water soluble polymers, their preparation and their uses
US4786318A (en) 1986-08-14 1988-11-22 Nalco Chemical Company Thickening of gold process slurries
US4786679A (en) 1987-02-13 1988-11-22 Nalco Chemical Company Water-in-oil emulsions of amidase
US4687807A (en) 1987-02-13 1987-08-18 Nalco Chemical Company Use of amidase for reducing the acrylamide content of water-in-oil emulsions containing acrylamide polymers
US4954547A (en) 1987-04-23 1990-09-04 Nalco Chemical Company Use of fatty acids for improvement in shear stability of water-in-oil emulsions
US4771094A (en) 1987-06-03 1988-09-13 Nalco Chemical Company Compositions for suspending solid particles in aqueous media
US4964999A (en) * 1987-06-15 1990-10-23 Hi-Tek Polymers, Inc. Process for forming stable emulsions of water soluble polysaccharides in hydrocarbon liquids
US4734103A (en) 1987-07-22 1988-03-29 Nalco Chemical Company Viscosity/drag reducing additive for high solids black liquor
US4751259A (en) 1987-08-05 1988-06-14 Nalco Chemical Company Compositions for iron ore agglomeration
US4795789A (en) 1987-10-26 1989-01-03 Nalco Chemical Company Process for making acrylamido methane sulfonic acid polymers
US4952642A (en) 1987-10-26 1990-08-28 Nalco Chemical Company Process for making acrylamido methane sulfonic acid polymers
US4898611A (en) 1988-03-31 1990-02-06 Nalco Chemical Company Polymeric ore agglomeration aids
US4800071A (en) 1988-05-03 1989-01-24 Nalco Chemical Company Filtration aids for removal of calcium solids from aqueous phosphoric acid
US5155156A (en) * 1988-06-15 1992-10-13 Scanley Clyde S Finely divided water soluble polymers and method for the production thereof
US5176748A (en) * 1988-07-05 1993-01-05 Bercen, Inc. Alkenyl succinic anhydride emulsion
US4915859A (en) 1988-09-16 1990-04-10 Nalco Chemical Company Micro-emulsion drawing fluids for steel and aluminum
US5100951A (en) * 1988-09-23 1992-03-31 Betz Laboratories, Inc. Stable blends of cationic water-in-oil emulsion polymers and cationic aqueous solution polymers
US5169540A (en) * 1988-09-23 1992-12-08 Betz Laboratories, Inc. Stable blends of cationic water-in-oil emulsion polymers and cationic aqueous solution polymers
US4921903A (en) 1988-10-11 1990-05-01 Nalco Chemical Company Process for preparing high molecular weight hydrophobic acrylamide polymers
US4875935A (en) 1988-11-04 1989-10-24 Nalco Chemical Company Anionic acrylamide polymers as copper ore agglomeration aids
US5100631A (en) * 1988-12-16 1992-03-31 Nalco Chemical Company Heap leaching ores containing gold and silver
US4868248A (en) 1989-03-22 1989-09-19 Nalco Chemical Company Polyhydroxyamic acid polymers from polyacrylic acids
US4886872A (en) 1989-05-22 1989-12-12 Nalco Chemical Company Novel cationic hydroxamate polymers
US4948464A (en) 1989-09-05 1990-08-14 Nalco Chemical Company Acrylamide-2-acrylamido-2-methylpropanesulfonic acid polymers as formation aids in wet laid nonwovens production
US5134118A (en) * 1989-11-06 1992-07-28 M-I Drilling Fluids Company Aqueous based drilling fluid
US5006596A (en) 1990-02-09 1991-04-09 Betz Laboratories, Inc. Self-inverting, water-in-oil emulsions
US5112391A (en) * 1990-03-30 1992-05-12 Nalco Chemical Company Method of forming ore pellets with superabsorbent polymer
US5100561A (en) * 1990-06-06 1992-03-31 Betz Laboratories, Inc. Cationic polymers for sludge dewatering
US5183576A (en) * 1990-06-06 1993-02-02 Betz Laboratories, Inc. Cationic polymers for sludge dewatering
US5124376A (en) * 1991-04-22 1992-06-23 Phillips Petroleum Company Use of phenol as rapid inverse latex inversion promoter and solution viscosity enhancer
US5256331A (en) * 1991-05-23 1993-10-26 American Cyanamid Company Water-in-oil emulsions containing hydroxylamine
US6608137B1 (en) * 1991-05-23 2003-08-19 Cytec Technology Corp. Microdispersions of hydroxamated polymers
US5380771A (en) * 1991-07-17 1995-01-10 Cargill Incorporated Aqueous dispersion of amine salts of an acrylic polymer
US5356988A (en) * 1991-07-17 1994-10-18 Cargill, Incorporated Acrylic polymer aqueous dispersion made through a micro dispersion
US5756119A (en) * 1991-10-16 1998-05-26 Richardson-Vicks Inc. Enhanced skin penetration system for improved topical delivery of drugs
US5874095A (en) * 1991-10-16 1999-02-23 Richardson-Vicks Inc. Enhanced skin penetration system for improved topical delivery of drugs
US5780049A (en) * 1991-10-16 1998-07-14 Richardson-Vicks Inc. Enhanced skin penetration system for improved topical delivery of drugs
US5776485A (en) * 1991-10-16 1998-07-07 Richardson-Vicks Inc. Enhanced skin penetration system for improved topical delivery of drugs
US5773023A (en) * 1991-10-16 1998-06-30 Richardson-Vicks Inc. Enhanced skin penetration system for improving topical delivery of drugs
US5756118A (en) * 1991-10-16 1998-05-26 Richardson-Vicks Inc. Enhanced skin penetration system for improved topical delivery of drugs
US5286391A (en) * 1993-02-04 1994-02-15 Nalco Chemical Company Red mud flocculation
US5368744A (en) * 1993-08-03 1994-11-29 Betz Laboratories, Inc. Methods for treating wastewater
US5395897A (en) * 1994-01-18 1995-03-07 Nalco Chemical Company High molecular weight substituted amides from polycarboxylic acids
US5730905A (en) * 1994-06-21 1998-03-24 Betzdearborn Inc. Method of resolving oil and water emulsions
US5668219A (en) * 1994-09-06 1997-09-16 Betzdearborn Inc. Cationic block polymer agglomeration agents for mineral bearing ores
US5512636A (en) * 1994-09-06 1996-04-30 Betz Laboratories, Inc. Cationic graft polymer agglomeration agents for mineral bearing ores
EP0702037A1 (en) 1994-09-16 1996-03-20 Betz Europe, Inc. Water soluble graft copolymers for deinking process water clarification
US5478477A (en) * 1994-11-04 1995-12-26 Nalco Chemical Company Use of alginates to treat bauxite red mud
US6210585B1 (en) 1995-07-26 2001-04-03 Nalco Chemical Company Fatty acid free latex polymer flocculants
US5837215A (en) * 1995-07-26 1998-11-17 Nalco Chemical Company Method of removing insoluble materials from bayer process with fatty acid and fatty acid free polymer flocculants
US5651861A (en) * 1995-12-18 1997-07-29 Rhone-Poulenc Inc. Process for removing inks from waste paper
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