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| Number | Title | Issue Date |
| 7981391 | Aqueous hydrogen peroxide solutions and method of making same An aqueous hydrogen peroxide solution containing i) less than 50 wppm alkali metals, alkaline earth metals or combinations thereof in total, irrespective whether the alkali or alkaline earth metals are present in cationic or complex form; ii) less than 50 wppm of am... | 07/19/2011 |
| 7722847 | Aqueous hydrogen peroxide solutions and method of making same An aqueous hydrogen peroxide solution containing i) less than 50 wppm alkali metals, alkaline earth metals or combinations thereof in total, irrespective whether the alkali or alkaline earth metals are present in cationic or complex form; ii) less than 50 wppm of am... | 05/25/2010 |
| 7431775 | Liquid detergent formulation with hydrogen peroxide A stabilized basic aqueous liquid detergent composition is disclosed. The composition comprises hydrogen peroxide, a hydrogen peroxide stabilizer or a mixture of hydrogen peroxide stabilizers, an anionic surfactant or mixture of anionic surfactants, a non-ionic surf... | 10/07/2008 |
| 7351764 | Methods to enhance brightness of pulp and optimize use of bleaching chemicals Mechanical or Chemical pulp is treated with about 0.01 weight % to about 5 weight % of a Mixture. The Mixture is water; diethylenetriaminepentakis(methyl)phosphonic acid or its known salts; polyacrylic acid or its known salts; and optionally one or more inert compou... | 04/01/2008 |
| 7341636 | Stabilization of alkaline hydrogen peroxide A stabilized basic aqueous hydrogen peroxide composition is disclosed. The composition contains about 0.3 wt % to about 15 wt % of hydrogen peroxide; water; and a stabilizer system that contains about 10 ppm to about 1% of a stannate stabilizer; 10 ppm to about 1% o... | 03/11/2008 |
| 7305816 | Rocket augmentation for combined cycle turboaccelerator jet engine An engine for creating a propulsive force includes turbomachinery for generating a flow of hot exhaust gases and an initial thrust force, an augmentor positioned aft of the turbomachinery, and a system for injecting an oxidizer, which preferably undergoes thermal de... | 12/11/2007 |
| 7169237 | Stabilization of alkaline hydrogen peroxide A stabilized basic aqueous hydrogen peroxide composition is disclosed. The composition contains about 0.3 wt % to about 15 wt % of hydrogen peroxide; water; and a stabilizer system that contains about 10 ppm to about 1% of a stannate stabilizer; 10 ppm to about 1% o... | 01/30/2007 |
| 7160482 | Composition comprising an oxidizing and complexing compound The present invention is related to a composition comprising an oxidizing compound and a complexing compound with the chemical formula wherein R1, R2, R3 and R4 are selected from the group consisting of H and any organic side chain. The oxidizing compound can be in ... | 01/09/2007 |
| 7122166 | Concentration of hydrogen peroxide Methods for concentrating hydrogen peroxide solutions have been described. The methods utilize a polymeric membrane separating a hydrogen peroxide solution from a sweep gas or permeate. The membrane is selective to the permeability of water over the permeability of ... | 10/17/2006 |
| 7070710 | Chemical composition and method The invention relates to a novel composition useful as a feed at production of chlorine dioxide, said composition being an aqueous solution comprising from about 1 to about 6.5 moles/liter of alkali metal chlorate, from about 1 to about 7 moles/liter of hydrogen per... | 07/04/2006 |
| 7059858 | Universal tray design having anatomical features to enhance fit A tray-shaped dental treatment device includes a moisture-resistant barrier layer having a front side wall and a bottom wall, and a dental treatment composition. In addition, the tray-shaped dental treatment device includes at least one of the following anatomical f... | 06/13/2006 |
| 7040897 | Thin, flexible membrane dental trays and systems and methods utilizing such trays A dental treatment system comprises membrane treatment tray that is self-conforming to a person's own teeth when used with a sticky dental treatment composition and a support skeleton. The support skeleton maintains the flexible membrane tray in the form of tray pri... | 05/09/2006 |
| 7008548 | Etchant for etching metal wiring layers and method for forming thin film transistor by using the same The present invention discloses an etchant for etching at least two different metal layers, the etchant comprising hydrogen peroxide (H2O2) and one of carboxylic acid, carboxylate salt, and acetyl group (CH3CO—). The present invent... | 03/07/2006 |
| 7004756 | Pre-shaped dental trays and treatment devices and methods that utilize such dental trays Pre-shaped, non-custom dental trays are either preloaded with bleaching gel or filled with a dental treatment composition just prior to placement over a person's teeth. The pre-shaped dental tray is thin and flexible, which allows it to be placed over a person's tee... | 02/28/2006 |
| 6756028 | Continuous hydrogenation process A continuous catalytic hydrogenation process, in which a reaction mixture containing the substance to be hydrogenated, the hydrogenation product, hydrogen and the hydrogenation catalyst suspended in the reaction mixture is recirculated in a reactor. Part of the hydr... | 06/29/2004 |
| 6696093 | Aldehyde donors for stabilizing peroxides The present invention is a method of stabilizing hydrogen peroxide in an aqueous solution, such as a circulating water slurry, comprising a peroxide, such as hydrogen peroxide. The aqueous solution may include organic matter. The method comprises adding a... | 02/24/2004 |
| 6677466 | Method for stabilizing hydrogen peroxide The invention relates to the use of one or more -keto carboxylic acid esters and/or aldehyde carboxylic acid esters for stabilizing hydrogen peroxide during enzyme-catalyzed or metal-catalyzed oxidation reactions in organic synthesis, as well as fo... | 01/13/2004 |
| 6576213 | Method of producing chlorine dioxide The invention relates to method of producing chlorine dioxide comprising the steps of: providing a reactor with an aqueous acidic reaction medium containing chlorate ions; reacting said chlorate ions with hydrogen peroxide as a reducing agent in such prop... | 06/10/2003 |
| 6379711 | Phosphomolybdic acid stabilizer for hydrogen peroxide Phosphomolybdic acid and partial alkali salts of phosphomolybdic acid are used as stabilizers for aqueous hydrogen peroxide.... | 04/30/2002 |
| 6224845 | Process for manufacturing an aqueous hydrogen peroxide solution Process for manufacturing a purified aqueous hydrogen peroxide solution, in which a crude aqueous hydrogen peroxide solution is subjected to a washing operation with at least one organic solvent which has been subjected to a purification treatment prior t... | 05/01/2001 |
| 5770739 | Non-aqueous hydrogen peroxide complex An apparatus and process for hydrogen peroxide vapor sterilization of medical instruments and similar devices make use of hydrogen peroxide vapor released from a substantially non-aqueous organic hydrogen peroxide complex, such as a urea-peroxide complex.... | 06/23/1998 |
| 5362412 | Biodegradable bleach stabilizers for detergents A process of stabilizing bleaching agents in a detergent composition using a nonphosphorus-containing biodegradable stabilizer. The process involves incorporating into a detergent composition containing a bleaching agent, a biodegradable compound of the f... | 11/08/1994 |
| 5302311 | Cleaning solution of semiconductor substrate In cleaning a semiconductor substrate with a basic aqueous solution of hydrogen peroxide, it is an object to prevent metal impurities adhering to the substrate surface. A cleaning solution of a semiconductor substrate which comprises a basic aqueous solut... | 04/12/1994 |
| 5211927 | Method for stabilizing acidic aqueous hydrogen peroxide solution containing copper An acidic aqueous hydrogen peroxide solution containing copper can be stabilized by adding an amino acid having the formula ##STR1## wherein Ar is an aromatic group.... | 05/18/1993 |
| 5206385 | Urea-hydrogen peroxide-polyvinylpyrrolidone process Urea-hydrogen peroxide-polyvinylpyrrolidone (PVP) in the form of a free-flowing powder is stable against decomposition in water and alcohol solvents. The product is obtained by spraying an aqueous solution of urea-hydrogen peroxide onto a fluidized bed of... | 04/27/1993 |
| 5183901 | Urea-hydrogen peroxide-polyvinylpyrrolidone Urea-hydrogen peroxide-polyvinylpyrrolidone (PVP) in the form of a free-flowing powder is stable against decomposition in water and alcohol solvents. The product is obtained by spraying an aqueous solution of urea-hydrogen peroxide onto a fluidized bed of... | 02/02/1993 |
| 5180514 | Stabilizing system for liquid hydrogen peroxide compositions Aqueous peroxide bleaching compositions including organic components such as surfactants, fluorescent whiteners and dyes are effectively stabilized by the addition of a stabilizing system comprising stabilizing effective amounts of a heavy metal chelating... | 01/19/1993 |
| 5130053 | Stabilization of concentrated hydrogen peroxide solutions Concentrated solutions of hydrogen peroxide tend to decompose on storage, thereby losing their effectiveness, amongst other reasons by virtue of interaction with contaminating transition metals. Peroxygen compounds are stabilized by contact with a stabilizing ... | 07/14/1992 |
| 5122354 | Histidine-hydrogen peroxide adduct and process for preparing same A crystallized, stable histidine-hydrogen peroxide adduct intermolecular-bonded at 1:1 ratio is provided.... | 06/16/1992 |
| 5045296 | Sodium carbonate perhydrate process A process is provided to react anhydrous carbonate with a particle size between 300 and 74 micrometers and hydrogen peroxide containing a hydroxyalkylidene diphosphonic acid to produce sodium carbonate perhydrate containing 13% to 141/2% active oxygen. Th... | 09/03/1991 |
| 5008036 | Colloidal sols of antimony pentoxide in an aqueous medium and their preparation A colloidal dispersion of hydrous antimony pentoxide particles is made by a process which comprises introducing a particulate antimony component selected from the group consisting of antimony metal and antimony trioxide into an essentially aqueous medium ... | 04/16/1991 |
| 5008093 | Anhydrous complexes of PVP and hydrogen peroxide What is provided herein are substantially anhydrous complexes of PVP and H2 O2 in molar ratios of between about 2:1 and 1:1, respectively, which corresponds to between about 13% and about 23% by weight H2 O2. Th... | 04/16/1991 |
| 4981662 | Stabilized hydrogen peroxide A stable hydrogen peroxide composition is provided of from 1% to 52% by weight hydrogen peroxide and 1,10-phenanthroline. The composition may contain other conventional additives suitable for stabilizing hydrogen peroxide.... | 01/01/1991 |
| 4970058 | Soda ash peroxygen carrier A novel composition of matter is claimed comprising particles which appear to comprise sodium carbonate, sodium percarbonate (also called sodium carbonate peroxide or sodium carbonate perhydrate), and a stabilizer for the compound, preferably a diphosphon... | 11/13/1990 |
| 4966762 | Process for manufacturing a soda ash peroxygen carrier A novel process is claimed for manufacturing a composition of matter comprising particles which appear to comprise sodium carbonate, sodium carbonate peroxide and a stabilizer such as, a disphosphonic acid, the anhydrous sodium carbonate being present in ... | 10/30/1990 |
| 4917122 | Compositions for use in the production of integrated circuits and method for its preparation and use A photoresist stripping solution is prepared by adding hydrogen peroxide to concentrated sulphuric acid under controlled temperature conditions, preferably at below 20° C. The concentration of the sulphuric acid in the solution is preferably maintained a... | 04/17/1990 |
| 4900468 | Stabilized liquid hydrogen peroxide bleach compositions Aqueous peroxide bleaching compositions that include surfactant, fluorescent whiteners and dyes are effectively stabilized by the addition of a heavy metal chelating agent and a free radical scavenging agent. Both agents must be present to achieve maximum... | 02/13/1990 |
| 4900469 | Thickened peracid precursor compositions A thickened cleaning composition for laundry products incorporates low levels of a fluorescent whitening agent or dye, a surfactant, an acidic pH adjusting agent and an insoluble peracid precursor. At the acidic pH, the fluorescent whitening agent precipi... | 02/13/1990 |
| 4889689 | Method of disinfecting a soft contact lens with a diethylene triamine penta(methylenephosphonic acid) stabilized hydrogen peroxide solution A method of disinfecting a soft contact lens with a stabilized aqueous hydrogen peroxide solution having a pH between about 5.5 and about 7.5, a hydrogen peroxide content of between about 0.5 and about 6% by weight, and containing between about 0.003 and ... | 12/26/1989 |
| 4850729 | Decontaminating composition and delivery system therefor A decontaminating composition and delivery system therefor. The decontaminating composition is prepared by combining a "per-salt", an activator for hydrogen peroxide which effects free radical formation, both of which are in a dry form and an aqueous solu... | 07/25/1989 |
