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| Number | Title | Issue Date |
| 6733673 | Method of dewatering sludge using enzymes This invention concerns a method of dewatering sludge comprising adding an effective amount of one or more cellulolytic enzymes and one or more peroxidases to the sludge. ... | 05/11/2004 |
| 6733674 | Method of dewatering sludge using enzymes A method of dewatering sludge comprising adding an effective amount of one or more cellulolytic enzymes, one or more oxidants and one or more flocculants to the sludge to form a mixture of water and coagulated and flocculated solids and separating the coagulated and... | 05/11/2004 |
| 6726845 | Dextran starch and flocculant combination for improving red mud clarification The claimed invention is a method for separating Bayer process red mud from a Bayer process liquor which comprises adding to a Bayer process liquor containing red mud an effective amount of a water soluble synthetic flocculant, dextran and starch combination. The fl... | 04/27/2004 |
| 6709551 | High molecular weight cationic and anionic polymers comprising zwitterionic monomers This invention is directed to high molecular weight water-soluble polymers comprised of zwitterionic, nonionic and cationic or anionic monomer units, and to the use of these polymers in papermaking processes. ... | 03/23/2004 |
| 6706144 | Method of dewatering pulp A method of dewatering an aqueous cellulosic pulp slurry comprising adding to an aqueous slurry of washed cellulosic pulp an effective dewatering amount of a mixture of one or more nonionic surfactants and one or more anionic surfactants. ... | 03/16/2004 |
| 6702921 | Methods to enhance pulp bleaching and delignification using an organic sulfide chelating agent A method to enhance brightness in Chemical and Mechanical bleached pulps comprising adding an organic sulfide chelant to the Chemical and Mechanical pulp.... | 03/09/2004 |
| 6696067 | Cosmetic compositions containing dispersion polymers A cosmetically acceptable composition for treating hair, skin and nails comprising from about 0.001 to about 25 weight percent, based on polymer solids, of a stable dispersion in an aqueous salt solution of a cationic, anionic or nonionic polymer having a... | 02/24/2004 |
| 6685840 | Method for determining the dissolution rate of a solid water treatment product A method of making a solid water treatment product with an optimal rate of dissolution is described and claimed. A fluorescent tracer is used to determine the rate of dissolution of the solid water treatment product and the composition and method of manuf... | 02/03/2004 |
| 6669904 | Stabilized bromine solutions, method of making and uses thereof for biofouling control Stabilized bromine solutions are prepared by combining a bromine source and a stabilizer to form a mixture, and then adding an oxidizer to the mixture.... | 12/30/2003 |
| 6670617 | Mirror fluorometer Described and claimed is a Mirror Fluorometer comprising a rotatable mirror positioned such that it is capable of projecting a converging cone of excitation light onto one or more of the samples wherein the fluorescent signals emitted from fluorophores in... | 12/30/2003 |
| 6662636 | Method of reducing fouling in filters for industrial water system analytical devices The invention is in a method of analyzing the water of an industrial water system wherein an analytical device is used to measure some parameter capable of being measured in the water of said industrial water system, the improvement involving using a wate... | 12/16/2003 |
| 6645428 | Fluorescent monomers and tagged treatment polymers containing same for use in industrial water systems Fluorescent monomers are described and claimed which are synthesized by reacting a substituted or non-substituted naphthalic anhydride with an amine and with a moiety containing a polymerizable group. Such monomers are useful for the preparation of tagged... | 11/11/2003 |
| 6641624 | Method of preparing a synthetic fuel from coal A method of preparing a synthetic fuel from coal comprising reacting the coal with a polymer composition comprising an aqueous solution or an aqueous emulsion of one or more reactive polymers, the reactive polymers selected from the group consisting of et... | 11/04/2003 |
| 6638983 | Demulsification of water-in-oil emulsions Water-in-Oil emulsions are demulsified using adducts of a) polyalkylene glycols (PAGS) having a molecular weight greater than 6,500 and up to 60,000, ethylene oxide (EO), and diisocyanates (DIs) or b) polyalkylene glycols (PAGs) having a molecular weight ... | 10/28/2003 |
| 6627087 | Method of removing lead from water using a high molecular weight cationic dispersion polymer A method of removing lead from water comprising a) adjusting the pH of the water to about 7 to about 9; and b) adding to the water an effective amount of a water soluble, high molecular weight cationic dispersion polymer composed of i) (meth)acrylamide;... | 09/30/2003 |
| 6627719 | Cationic latex terpolymers for sludge dewatering A cationic latex terpolymer prepared by polymerizing from about 1 to about 99.1 mole percent of one or more cationic monomers, from about 0.9 to about 5 mole percent of one or more hydroxyalkyl (meth)acrylates and from 0 to about 98.1 mole percent of one ... | 09/30/2003 |
| 6617421 | Method for producing substantially dry water-insoluble polymers for improved flocculation in the Bayer process The present invention is a method of producing substantially dry water insoluble polymers from poly alkyl esters of vinylic monomers for use in a method for the clarification of red mud-containing liquors generated in the Bayer process for the recovery of... | 09/09/2003 |
| 6610209 | Use of polymers containing vinylamine/vinylformamide for the treatment of food processing wastewater A method for clarifying food processing waste water containing suspended solids comprising (iii) adding to the waste water with an effective amount of at least one vinylamine polymer having a molecular weight of at least 10,000, wherein the polymer is... | 08/26/2003 |
| 6605674 | Structurally-modified polymer flocculants This invention is directed to structurally-modified water-soluble polymers prepared by initiating polymerization of an aqueous solution of monomers under free radical polymerization conditions to form a polymer solution and adding at least one structural ... | 08/12/2003 |
| 6599489 | Aluminum trihydrate crystals and improved method for the production thereof The present invention provides an improved process for the production of alumina trihydrate crystals. Through the addition of a hydroxamated polymer at various stages of the process for production of these alumina trihydrate crystals, an upward shift in t... | 07/29/2003 |
| 6592718 | Method of improving retention and drainage in a papermaking process using a diallyl-N,N-disubstituted ammonium halide-acrylamide copolymer and a structurally modified cationic polymer A method of increasing retention and drainage in a papermaking furnish comprising adding to the furnish an effective amount of a diallyl-N,N-disubstituted ammonium halide/acrylamide copolymer and an effective amount of a cationic structurally-modified wat... | 07/15/2003 |
| 6590051 | High molecular weight zwitterionic polymers This invention is directed to high molecular weight water-soluble zwitterionic polymers derived from zwitterionic and nonionic monomer units, and to the use of the polymers in papermaking processes.... | 07/08/2003 |
| 6587753 | Use of control matrix for boiler control Described and claimed is a method of controlling a boiler in which control is based on information from a control Matrix applicable to the specific operating parameters of said boiler. This method is applicable for boilers being treated with any of several ... | 07/01/2003 |
| 6572789 | Corrosion inhibitors for aqueous systems A method of inhibiting corrosion in aqueous systems comprising adding to the system a composition comprising mono, bis and oligomeric phosphinosuccinic acid adducts and a method of preparing a composition comprising mono, bis and oligomeric phosphinosucci... | 06/03/2003 |
| 6569413 | Hair fixative composition containing an anionic polymer A cosmetically acceptable hair fixative composition comprising from about 0.1 to about 10 weight percent, based on polymer solids, of an anionic polymer, wherein the anionic polymer is composed of from about 10 to about 80 mole percent of 2-acrylamido-2-m... | 05/27/2003 |
| 6566139 | Method of enhancing the fluorescent signal of a fluorescent oxygen scavenger A method of automatically controlling the addition rate of Fresh Oxygen Scavenger Product and Ultimate Oxygen Scavenger Product to a Boiler System is described and claimed. The method is based on the inherent fluorometric properties of certain Fresh Oxyge... | 05/20/2003 |
| 6562875 | Aqueous defoamer composition An aqueous emulsion containing from about 0.1 to about 70 weight percent of a mixture of a) one or more alkoxylated alcohols of formula RO(C2 H4 O)x (C3 H6 O)y Z wherein R is straight or branched C | 05/13/2003 |
| 6556027 | Low cost, on-line corrosion monitor and smart corrosion probe Devices, methods and systems are provided for monitoring of industrial processes. Devices and systems are provided which include a controller module connected to a probe module having a specified metallurgy and a resistor module having a specified resista... | 04/29/2003 |
| 6548558 | Contaminant dispersants useful in recycling of treated containers Methods for controlling wax and other contaminants by improving the dispersion of these materials through the addition of contaminant dispersants to the process of recycling paper and paperboard are disclosed. A preferred contaminant dispersant comprises:... | 04/15/2003 |
| 6540943 | Method of inhibiting corrosion of metal equipment which is cleaned with an inorganic acid The corrosion of metal equipment which is cleaned with an inorganic acid is inhibited by treating the equipment with a corrosion inhibitor composition containing at least one quaternary ammonium compound, a sulfur-containing compound and a nonionic surfac... | 04/01/2003 |
| 6540013 | Method of increasing the strength and solids level of investment casting shells The strength and solids level of an investment casting shell is increased by incorporating at least one microsilica into the shell.... | 04/01/2003 |
| 6527959 | Method of clarifying bayer process liquors using salicylic acid containing polymers A method of flocculating suspended solids in a Bayer process liquor comprising adding to the liquor an effective amount of a polymer comprising salicylic acid groups.... | 03/04/2003 |
| 6527914 | Method of enhancing brightness and brightness stability of paper made with mechanical pulp Methods to enhance the brightness and brightness stability of paper and paperboard made with Mechanical Pulp are described and claimed. The method involves applying a Penetrant Compound to paper or paperboard in an amount from about 0.001 percent to about... | 03/04/2003 |
| 6524435 | Method and composition for dispersing hydrophobic particles in aqueous suspensions A method of dispersing hydrophobic particles in aqueous suspensions comprising adding to the suspension an effective amount of an ethylene oxide-propylene oxide block copolymer, wherein the copolymer has a molecular weight of from about 1,000 to about 50,... | 02/25/2003 |
| 6517677 | Method of improving retention and drainage in a papermaking process using low molecular weight cationic dispersion polymers This invention is directed to a method of improving retention and drainage performance in a papermaking process comprising adding to the furnish an effective amount of a low molecular weight water-soluble cationic dispersion polymer prepared by polymerizi... | 02/11/2003 |
| 6508886 | Method for preparing a purified sugary juice from raw juices obtained from sacchariferous material of vegetable origin An embodiment of the present invention described and shown in the specification is a method for the preparation of a purified sugary juice from raw juices obtained from sacchariferous material of vegetable origin. The embodiment of the method that is disc... | 01/21/2003 |
| 6486216 | Stable colloidal silica aquasols A stable aquasol containing colloidal silica having a surface area of from about 700 m2 /g to about 1100 m2 /g, and an S-value of from about 20 to about 50; wherein the colloidal silica is not surface treated; wherein the molar ratio... | 11/26/2002 |
| 6485651 | Quick inverting liquid flocculant This invention is directed to methods for quickly inverting and dispersing a flocculant in an aqueous slurry to achieve settlement of solids and clarification of the slurry water. In particular, this invention relates to methods for quickly inverting a fl... | 11/26/2002 |
| 6475394 | Pseudo-fouling detector and use thereof to control an industrial water process A system and method are provided which enables the monitoring and if desired controlling of fouling within a fluid system. The present invention includes a pseudo-fouling detector system with a pair of identical sensors, where said sensors measure a varia... | 11/05/2002 |
| 6472219 | Use of tracers to monitor application of treatment products to cut flowers A method to determine whether the desired amount of treatment product is present in water that cut flowers are placed in, is described and claimed. The method comprises formulating the treatment product so that it contains an inert fluorescent tracer, whe... | 10/29/2002 |
