| Patents for C02F 5 - Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents (8,632) |
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| 10/09/1985 | EP0157465A1 Polymer compositions detectable in water |
| 10/08/1985 | US4545920 Anionic vinyl polymer and vinyl sulfonate acrylic acid copolymer |
| 10/08/1985 | US4545887 Electrode for electrostatic water treatment |
| 10/02/1985 | EP0156031A1 Method of oil recovery |
| 10/02/1985 | EP0156030A1 Aqueous drilling fluid |
| 10/01/1985 | US4544639 Catalytic oxidation to orthophosphate; complexing with molybdic or vanadic acid; colorimetry |
| 10/01/1985 | CA1194645A1 Acrylate/maleate copolymers, their preparation and use as antiscalants |
| 09/11/1985 | EP0154475A2 Bis(aminomethyl)bicyclo(2.2.1)heptanes useful as metal ion control agents and radioactive metals complexed therewith |
| 09/11/1985 | EP0154474A2 Bis(aminoalkyl)piperazine derivatives and their use as metal ion control agents and cement set retarding agents |
| 09/10/1985 | US4540508 Piperazine derivatives |
| 09/10/1985 | US4540443 Cooling system cleaning composition |
| 08/29/1985 | WO1985003698A1 Bis(aminoalkyl)piperazine derivatives and their use as metal ion control agents and cement set retarding agents |
| 08/29/1985 | WO1985003697A1 Process for clarifying bicarbonate bearing waters using measurement and control of carbon dioxide content |
| 08/29/1985 | WO1985003696A1 Process for diluting aqueous polymer solutions |
| 08/28/1985 | EP0152661A1 Poly (alkenyl) phosphonic acid and methods of use thereof |
| 08/28/1985 | EP0152660A1 Isopropenyl phosphonic acid copolymers and methods of use thereof |
| 08/27/1985 | US4537684 Control of metal-containing scale deposition from high temperature brine |
| 08/20/1985 | US4536292 For aqueous systems |
| 08/13/1985 | US4534881 Inhibition of inorganic or biological CaCO3 deposition by poly amino acid derivatives |
| 08/13/1985 | US4534866 Adding a reaction product of acrylic acid, hydroxylated lower alkyl acrylate, and hypophosphorous acid |
| 08/13/1985 | CA1191677A1 Sulfite-erythorbic acid corrosion inhibitors |
| 08/07/1985 | EP0150706A2 Cotelomer compounds |
| 08/06/1985 | US4533709 Heating a monoalkyl fumarate and a free radical catralyst; hydrolysis; water treatment |
| 08/06/1985 | US4533708 Polyampholyte polymer |
| 07/30/1985 | US4532048 Adding water soluble noncrosslinked random copolymer containing units derived from unsaturated acids or salts, esters, sulfonates to process water |
| 07/30/1985 | US4532047 Silica inhibition: prevention of silica deposition by addition of low molecular weight organic compounds |
| 07/30/1985 | US4532046 Dissolving in water scale inhibiting amount of hydroxamic group bearing homopolymer or copolymer |
| 07/23/1985 | US4530955 Water treatment composition comprising a hydrolyzed maleic anhydride copolymer and a zinc compound |
| 07/23/1985 | US4530766 Method of inhibiting scaling in aqueous systems with low molecular weight copolymers |
| 06/25/1985 | US4525293 Phosphonomethylated derivative of 1,3-diaminopropanol-2 |
| 05/29/1985 | EP0142929A2 Water soluble polymers and methods of use thereof |
| 05/28/1985 | US4519920 Maleic acid/(meth)acrylic acid copolymers useful as calcium ion capturing agents |
| 05/28/1985 | CA1187765A1 Control of iron induced fouling in water systems |
| 05/21/1985 | US4518777 Methylene phosphonic acid scale inhibitor compositions derived from aminohydrocarcarbylpiperazine urea adducts |
| 05/21/1985 | US4518505 Thermal softening process |
| 05/21/1985 | US4518429 Glass powder pigments in resin binders |
| 05/14/1985 | US4517098 Method of dispersing inorganic materials in aqueous systems with low molecular weight acrylic acid copolymers |
| 05/14/1985 | US4517097 Process for diluting aqueous polymer solutions |
| 05/14/1985 | CA1186968A1 Prevention of calcium phosphate fouling of heat transfer surfaces |
| 05/08/1985 | EP0140519A1 Use of chelating agents in water desalination |
| 04/30/1985 | US4514504 Selective absorption and concentration |
| 04/30/1985 | CA1186425A1 Manganese catalyzed erythorbic acid or ascorbic acid for oxygen removal |
| 04/09/1985 | US4510059 Reducing the formation of silica deposits |
| 04/09/1985 | CA1185140A1 Process and production for preventing clay deposits in water |
| 04/03/1985 | EP0136015A1 New methylene phosphonic acid scale inhibitor compositions derived from aminohydrocarbylpiperazine-urea adducts |
| 03/27/1985 | EP0135298A2 A method for concentrating and separating water soluble polymeric material containing carboxylic acid mers from an aqueous system containing the polymeric material and other soluble ionic material and a kit of parts for carrying out such method |
| 03/19/1985 | US4506081 Micorbiocides, corrosion resistance, delamination, flocculants, softners, antistatic, demulsifiers |
| 03/14/1985 | WO1985001042A1 New methylene phosphonic acid scale inhibitor compositions derived from aminohydrocarbylpiperazine-urea adducts |
| 03/14/1985 | WO1985001041A1 Electrostatic water treatment and electrode therefor |
| 03/12/1985 | US4504643 (Meth)acrylic acid/methallylsulfonate copolymers |
| 03/12/1985 | CA1183861A1 Poly(alkenyl) phosphonic acid and methods of use thereof |
| 02/26/1985 | US4501668 Mixing with acrolein-formaldehyde condensation product for deodorizing |
| 02/26/1985 | US4501667 Process of inhibiting corrosion of metal surfaces and/or deposition of scale thereon |
| 02/26/1985 | CA1182983A1 Gas scrubbing methods |
| 02/20/1985 | EP0133210A2 Novel scale inhibiting copolymer and method for inhibiting scale deposition |
| 02/19/1985 | US4500693 Water soluble copolymer method for manufacture therefore and use thereof |
| 02/19/1985 | US4500470 Chelating agents; inhibition of precipitation |
| 02/19/1985 | US4500469 Chelating agents |
| 02/19/1985 | US4500434 Injection of brine-soluble acid |
| 02/13/1985 | EP0132630A2 Polymers containing phosphonic acid groups, their preparation and their use |
| 02/12/1985 | US4499002 Scale inhibiting copolymer |
| 02/12/1985 | CA1182594A1 Treatment of water |
| 02/05/1985 | US4497713 Method of inhibiting corrosion and deposition in aqueous systems |
| 01/29/1985 | US4496470 Cleaning composition |
| 01/22/1985 | US4495080 Method for preparing a cation exchanger |
| 01/22/1985 | US4494977 Quaternary ammonium salts of α-1,4-thiazine alkanephosphonic acids |
| 01/16/1985 | EP0131119A1 Cross-flow microfiltration lime softener |
| 01/15/1985 | US4493771 Scale inhibiting with compounds containing quaternary ammonium and methylenephosphonic acid groups |
| 01/15/1985 | CA1181196A1 Isopropenyl phosphonic acid copolymers and methods of use thereof |
| 01/08/1985 | CA1180540A1 Method and composition of inhibiting corrosion and deposition in aqueous systems |
| 12/18/1984 | US4489203 Polyumeric alkylene phosphoric acid piperazine derivatives as scale inhibitors |
| 12/12/1984 | EP0127635A1 Method for eliminating manganiferous scales from watersupply pla nts, treatment solution and utilization thereof |
| 12/05/1984 | EP0127572A2 Process for inhibiting corrosion and/or scale deposits |
| 12/04/1984 | US4486581 Use of fumaric acid polymers as antiscalants |
| 12/04/1984 | US4486339 Sequestering agent |
| 12/04/1984 | CA1178801A1 Method and composition for inhibiting corrosion and deposition in aqueous systems |
| 11/27/1984 | US4485223 (Meth)acrylic acid/itaconic acid copolymers, their preparation and use as antiscalants |
| 11/27/1984 | US4484631 Use of polyampholytes to enhance oil and/or gas recovery |
| 11/21/1984 | EP0125766A1 Phosphonates |
| 11/21/1984 | EP0125519A1 Water soluble complexing agent for metallic cations composed of acrylic terpolymers with a high complexing power |
| 11/20/1984 | CA1178383A1 Sequestering of ca su xx and me su xx in aqueous media using zeolite mixtures |
| 10/31/1984 | EP0123482A2 Use of acrylic acid copolymer for combating particulate matter formation and dispersing particulate matter in an aqueous system |
| 10/31/1984 | EP0123108A1 Maleic acid copolymer, production thereof and scale-preventing agent containing the same |
| 10/31/1984 | EP0123052A2 Method of making and using novel scale inhibiting terpolymer |
| 10/30/1984 | US4480067 Impeding sedimentation of clays in water |
| 10/30/1984 | US4479878 High calcium tolerant deposit control method |
| 10/24/1984 | EP0122789A1 Use of an acrylic polymer for combatting particulate matter formation, and for dispersing mud, silt and/or clay particles present in an aqueous system |
| 10/17/1984 | EP0122229A1 Water-treatment composition |
| 10/17/1984 | EP0122013A1 Polymeric additives for water |
| 10/17/1984 | EP0121631A2 Method of removing scale |
| 10/16/1984 | US4476930 A nitrogen-containing salt to prevent deposition |
| 10/10/1984 | EP0120983A1 Scale inhibitor for reverse osmosis water purification system |
| 09/25/1984 | CA1174936A1 Process for dispersing particulate material in aqueous systems |
| 09/19/1984 | EP0118970A1 Deposit control method and composition |
| 09/18/1984 | US4472283 Use of carbon dioxide to reduce the pH in circulating hard water |
| 09/12/1984 | EP0118395A2 Process for inhibiting corrosion of metallic surfaces and/or scale deposits thereon |
| 09/11/1984 | US4471100 Oxyalkylated allyl alcohol and maleic acid copolymers |
| 09/11/1984 | CA1174331A1 Control apparatus for use in multiple steam generator or multiple hot water generator installations |
| 09/04/1984 | US4469663 Scale control in flue gas desulfurization |
| 09/04/1984 | US4469615 Water treating compositions |