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| Number | Title | Issue Date |
| 5658487 | Polymeric dithiocarbamate acid salt compositions and method of use A contaminant precipitating composition and method are disclosed. The composition comprises a water soluble, branched, polydithiocarbamic acid salt effective for the purpose of precipitating contaminants from an aqueous solution. The method comprises addi... | 08/19/1997 |
| 5626718 | Use of polymers in the recycled fiber washing/deinking process The present invention is directed to a method for increasing the retention on a washing/thickening device in an aqueous papermaking system. The method generally comprises adding to the furnish solids of the system an effective amount of a cationic polyacr... | 05/06/1997 |
| 5601754 | Water treatment polymer containing poly[oxy-[(hydroxymethyl)-1,2-ethanediyl]] macromonomers and methods of use thereof A polymer and method of controlling corrosion and the formation and deposition of scale imparting compounds in water systems is disclosed. The polymer has the general structure: ##STR1## wherein E1 comprises the repeat unit obtained after ... | 02/11/1997 |
| 5596130 | Methods and compositions for reducing fouling deposit formation in jet engines Methods and compositions are provided for cleaning and inhibiting the formation of fouling deposits on jet engine components during the combustion of turbine combustion fuel oils. Methods and compositions are also provided for inhibiting the formation and... | 01/21/1997 |
| 5565619 | Methods and apparatus for monitoring water process equipment Methods and apparatus are provided for using tracers to monitor industrial process equipment to which liquid is added and from which liquid is removed. In preferred embodiments, the methods are directed to detecting water leakage in a boiler in which an a... | 10/15/1996 |
| 5562863 | Methods and compositions for inhibiting vinyl aromatic monomer polymerization Vinyl aromatic monomer polymerization methods utilizing a composition of 2,6-di-tert-butyl-4-methylphenol and a substituted benzoquinonediimide compound are disclosed. Preferably, the composition is employed in an amount of 1 part to 10,000 parts per mill... | 10/08/1996 |
| 5562862 | Polybutene-based foam control composition for aqueous systems A stable defoamer composition and method of defoaming an aqueous system is disclosed. The composition comprises an alcohol alkoxylate, at least one surfactant having a melting point less than 20° C., and a low HLB, ethylene oxide/propylene oxide block co... | 10/08/1996 |
| 5562833 | Dual feed paint detackification program In a paint spray booth wherein water is used to collect oversprayed paint, a process is disclosed for detackifying and coagulating oversprayed paint by the independent and concurrent addition of specific amounts of specific anions and cationic polymers to... | 10/08/1996 |
| 5562830 | Calcium carbonate scale controlling method A method of inhibiting corrosion and scale formation and deposition in aqueous systems by adding a combination of a polyepoxysuccinic acid or salts thereof and a phosphonocarboxylic acid or salts thereof.... | 10/08/1996 |
| 5562816 | Tar dissolution process A Mannich reaction product of reactants selected from alkylated phenols, a polyamine and an aldehyde is employed to dissolve tar deposits in coke oven piping and transmission lines.... | 10/08/1996 |
| 5560523 | Apparatus for measuring and transferring liquid An apparatus for transferring a discrete, measured volume of liquid from a dispensing container to a liquid receptacle. The apparatus is comprised of a conduit having a solenoid valve, a measuring vessel and a pump. The solenoid valve controls fluid flow ... | 10/01/1996 |
| 5556510 | Method for inhibiting the deposition of organic contaminants in polp and papermaking processes A method of inhibiting the deposition of organic contaminants in a pulp and papermaking system comprising adding to the system an effective amount of a detackifying composition comprising a charged polymer and an oppositely charged surfactant, with the pr... | 09/17/1996 |
| 5556451 | Oxygen induced corrosion inhibitor compositions Compositions and methods of using the compositions to inhibit oxygen induced corrosion of metal exposed to aqueous solutions are disclosed. The compositions include hydroxybenzoic acid in formulations with imidazoline, heavy aromatic naphtha, polymerized ... | 09/17/1996 |
| 5545438 | Hydrophilic treatment for aluminum A hydrophilic coating for aluminum comprising a substantially chromium-free treatment including phosphoric acid, boric acid and optionally molybdic acid.... | 08/13/1996 |
| 5545347 | Low phosphorous, low etch cleaner and method Compositions and methods for cleaning and etching an aluminum surface with a low etch, low phosphate alkaline cleaner solution are disclosed. The preferred composition employs a stable combination of an alkali metal hydroxide, gluconic acid, a detergent s... | 08/13/1996 |
| 5541257 | Reactive rinse aid for processing plastic surfaces A method of enhancing the drainage of residual aqueous rinse from the external surfaces of plastic parts is disclosed. The method employs an aqueous solution of a tannin compound, which when applied to the surface of plastic parts will not rinse off durin... | 07/30/1996 |
| 5538622 | Methods and compositions for inhibiting the polymerization of dichlorobutene Methods and compositions for inhibiting the polymerization of crude dichlorobutene during its processing are disclosed. The methods comprise adding an effective polymerization inhibiting amount of a composition of a hydroxylamine compound and a metal deac... | 07/23/1996 |
| 5536326 | Method for enhancing the dewatering of starch A method for enhancing the dewatering of starch comprising adding to an aqueous starch slurry an effective amount of a composition comprising polybutene and at least one surfactant having a melting point less than 20° C.... | 07/16/1996 |
| 5531937 | Water soluble cyclic amine-dicarboxylic acid-alkanol amine salt corrosion inhibitor Compositions and a method of using the compositions to inhibit corrosion. The compositions are water soluble n-alkyl morpholine, saturated dicarboxylic acid, optionally alkanol amine and optionally surfactant compositions which inhibit ferrous metal corro... | 07/02/1996 |
| 5527468 | Nonionic polymers for the treatment of boiler water A treatment for controlling the deposition of scale imparting species on the structural surfaces of steam generating systems, wherein the aqueous medium is maintained at a pH which minimizes magnetite solubility, comprising the use of a combination of an ... | 06/18/1996 |
| 5525241 | Solid halogen feed system A water treatment system including a tank for containing a solid treatment product such as a solid halogen. The water treatment system is adapted to be used in combination with a cooling system wherein treated water is fed to the cooling system through an... | 06/11/1996 |
| 5523002 | Polymeric dithiocarbamic acid salt compositions and methods of use A contaminant precipitating composition and method are disclosed. The composition comprises a water soluble branched polymeric composition effective for the purpose of precipitating contaminants from an aqueous solution. The method comprises adding an amo... | 06/04/1996 |
| 5521814 | Process optimization and control system that plots inter-relationships between variables to meet an objective A process control system uses a performance model, in conjunction with an economic model, to meet either performance or economic objectives. The system operates either automatically, on-line, in "real time" or manually off-line, in "real time" to optimize... | 05/28/1996 |
| 5518629 | Methods for controlling scale formation in acqueous systems A method of controlling scale formation and deposition and corrosion in aqueous systems is described wherein a treatment solution of a substoichiometric amount of a scale/corrosion inhibitor in combination with a substituted alkylpolycarboxylate is employ... | 05/21/1996 |
| 5518640 | Metal working emulsion cleaner An emulsion cleaner formulation is provided which is free of toxic or hazardous materials listed under SARA 313. The emulsion cleaner formulation employs a blend of triethanolamine soap of tall oil fatty acid, polyethylene glycol (400) dioleate and polyet... | 05/21/1996 |
| 5518770 | Methods and compositions for pretreatment of metals Methods and compositions for pretreating a metal surface are provided. The methods comprise applying to the metal surface a hydrolysate of a copolymer of an unsaturated carboxylic acid or derivative thereof and a vinyltrialkoxysilane compound. Novel zinc ... | 05/21/1996 |
| 5519102 | Aqueous polymerization method for poly(isopropenylphosphonic acid) A method of preparing poly(isopropenylphosphonic acid) is disclosed, which provides a high yield with low initiator charge. The method comprises preparing poly(isopropenylphosphonic acid) by polymerizing a mixture of isopropenylphosphonic acid and isoprop... | 05/21/1996 |
| 5518636 | Methods of detoxifying quaternary ammonium compounds toward aquatic organisms The present invention is directed to a method of detoxifying water containing quaternary ammonium compounds to the extent that aquatic life such as fish and macroinvertebrates are protected. The method comprises adding to an aqueous system including a qua... | 05/21/1996 |
| 5518555 | Chromium and fluoride free metal treatment A heavy metal and fluoride free pretreatment for a metal surface which enhances corrosion resistance and surface adhesion properties is described. The pretreatment is an aqueous solution of an anionic polyacrylamide which can be rinsed or dried in place.... | 05/21/1996 |
| 5518630 | Method for controlling scale formation and deposition A method and composition for controlling the formation and deposition of scale imparting compounds in an aqueous system is disclosed. A treatment comprising a sulfonated polymer and a polymaleic acid is effective in controlling the formation and depositio... | 05/21/1996 |
| 5512186 | Method for inhibiting microbial adhesion on surfaces A method for inhibiting the microbial adhesion on surfaces in contact with an aqueous system is disclosed, which comprises adding to the system a treatment comprising an alkylsulfosuccinate surfactant.... | 04/30/1996 |
| 5512212 | Corrosion inhibitor composition and method of use A composition and method for inhibiting corrosion of iron and iron-containing metals in contact with aqueous systems containing sulfide compounds. The composition comprises (A) an aqueous solution of an alcohol, an acid, a fatty imidazoline, and an ethoxy... | 04/30/1996 |
| 5512213 | Aqueous stabilized isothiazolone blends A treatment for stabilizing an isothiazolone compound comprising adding to the compound a stabilizing amount of a metal salt, wherein the cation of the metal salt is an alkali metal, and the anion is selected from the group consisting of acetate, citrate,... | 04/30/1996 |
| 5512243 | Cyclohexanedione oxygen scavengers An oxygen scavenger for aqueous mediums is disclosed. The oxygen scavengers comprise cyclohexanediones which, when added to basic aqueous solutions, effectively scavenge oxygen from the aqueous solutions. The oxygen scavenger has particular utility as an ... | 04/30/1996 |
| 5512636 | Cationic graft polymer agglomeration agents for mineral bearing ores Agglomerating agent and method for use in heap leaching of mineral bearing ores. Cationic polymers alone or in combination with cement or lime are highly effective agglomerating agents in acidic or alkaline leaching operations. The cationic polymers are p... | 04/30/1996 |
| 5512183 | Alkyl-allylphosphonate copolymer used for boiler water treatment A water soluble isopropenylphosphonic acid copolymer composition and method of use thereof are disclosed. The copolymer comprises repeat units (a) of the formula: ##STR1## wherein X=OH or OM, wherein M is a cation, and repeat units (b) of the fo... | 04/30/1996 |
| 5510547 | Methods for inhibiting vinyl aromatic monomer polymerization Methods for inhibiting the polymerization of vinyl aromatic monomers in oxygen-free processing systems are disclosed. The methods comprise adding from 1 to 10,000 parts of a combination of a hydroxylamine compound and a phenylenediamine compound to the vi... | 04/23/1996 |
| 5505792 | Visible dried-in-place non-chrome polyacrylamide based treatment for aluminum A method of providing color to a polyacrylamide based, dried-in-place, non-chromate conversion coating is provided. The addition of a phthalo green pigment and optionally a nonionic surfactant to an aqueous, dried-in-place conversion coating treatment sol... | 04/09/1996 |
| 5500220 | Biological and dust control methods for bulk/granular solids A foam carrier for a dust control agent and a biological control agent is provided to control fugitive dust dissemination and biological activity in bulk/granular solids.... | 03/19/1996 |
| 5500373 | Methods for determining the concentration of cyanide in sour aqueous systems A method for determining the concentration of cyanide in an aqueous system is disclosed. The method determines the cyanide concentration from a determination of reference thiocyanate concentrations and will measure the cyanide concentration in the presenc... | 03/19/1996 |
