The Bleach Or Oxidant Component Contains Peroxy Patents (Class 510/375)
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Patent number: 6365564Abstract: Asymmetrical imide bleach activators for use in both solid and liquid additive, bleaching and detergent compositions are provided. The compounds have general formula (I) wherein R1 is a moiety selected from a specific group, R2 is a C1-C8 linear or branched chain saturated or unsaturated alkyl group and R3 is a C1-C4 linear or branched chain saturated or unsaturated alkyl group. Preferred compounds include the compounds when R2 and R3 are CH3. Bleach additive and bleaching compositions including the asymmetrical bleach activators and methods of cleaning fabrics are also provided.Type: GrantFiled: April 15, 1999Date of Patent: April 2, 2002Assignee: The Procter & Gamble Co.Inventors: Kevin Lee Kott, Gregory Scot Miracle, James Charles T. R. Burckett-St. Laurent, Robert Richard Dykstra
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Patent number: 6362151Abstract: A granular detergent composition containing a secondary (2,3) alkyl sulfate surfactant and a bleach/bleach activator system which has improved cleaning performance is provided. The detergent composition comprises: (a) from about 1% to about 40% of a secondary (2,3) alkyl sulfate surfactant; (b) from about 0.005% to about 5% of an enzyme; (c) from about 0.5% to about 20% of a peroxygen bleaching agent; and (d) from about 0.5% to about 20% of a bleach activator. The peroxygen bleaching compound and the bleach activator are in a molar ratio from about 1:1 to about 9:1. The detergent composition is stable, exhibits superior cleaning and contains a more biodegradable surfactant.Type: GrantFiled: November 18, 1997Date of Patent: March 26, 2002Assignee: The Procter & Gamble CompanyInventors: Todd Edmund Wichmann, Edward Eugene Getty
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Patent number: 6358903Abstract: A laundry treatment composition comprising peroxygen bleach and a water-soluble or water dispersible rebuild agent for redeposition onto a fabric during the laundry process, wherein the fabric rebuild agent undergoes during the laundry process, a chemical change by which change the affinity of the material for the fabric is increased. The peroxygen bleach was found to increase the deposition of the fabric rebuild agent.Type: GrantFiled: March 29, 2001Date of Patent: March 19, 2002Assignee: Unilever Home and Personal Care, USA division of Conopco, Inc.Inventors: Andrew Hopkinson, Christopher Clarkson Jones, David Richard Mealing
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Publication number: 20020028753Abstract: Laundry detergents and cleaners which, in addition to a peroxide compound, comprise a compound of the formulaType: ApplicationFiled: April 20, 2001Publication date: March 7, 2002Applicant: Clariant GmbHInventors: Claudia Fischer, Nicole Reichardt, Jorg Issberner
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Publication number: 20020019323Abstract: A process for cleaning textile fabric without the need for conventional detergent systems comprising agitating the fabric in a composition comprising at least two immiscible liquids, for example, perchloroethylene or petroleum ether and water, having at least one liquid-liquid interface with an interfacial tension of at least 5 mN/m, preferably at least 10 mN/m, and where the concentration of the most polar liquid in the composition is from 10 to 90% by volume.Type: ApplicationFiled: May 18, 2001Publication date: February 14, 2002Inventor: Vijaya Milind Bargaje
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Publication number: 20020013247Abstract: The invention relates to catalytically bleaching substrates, especially laundry fabrics, with atmospheric oxygen and a peroxyl species. A method of bleaching a substrate is provided that comprises applying to the substrate, in an aqueous medium, a specified organic substance which forms a complex with a transition metal, the complex catalysing bleaching of the substrate by atmospheric oxygen and a peroxyl species. Also provided is a bleaching composition comprising, in an aqueous medium, atmospheric oxygen and an organic substance which forms a complex with a transition metal, the complex catalysing bleaching of the substrate by the atmospheric oxygen, wherein the aqueous medium is provided with a peroxygen bleach or a peroxy-based or peroxy-generating bleach system.Type: ApplicationFiled: February 28, 2001Publication date: January 31, 2002Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.Inventors: Ronald Hage, Ton Swarthoff, David Tetard, David William Thornthwaite
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Publication number: 20020004470Abstract: This invention relates to a cleaning and lubricating solution for guns, gun bores, cartridges, and gun parts, and more especially for black powder guns, gun bores, cartridges, and gun parts. The solution is used to clean dirt and debris from the bores and other parts of black powder firearms and accessories. The solution cleans the bore and the residual material forms a protective coating or film of a light lubricating oil.Type: ApplicationFiled: April 30, 2001Publication date: January 10, 2002Inventors: Melvin Wright, John H. Hoffman
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Publication number: 20020004474Abstract: The present invention relates to laundry detergent compositions comprising: A) from about 0.01%, preferably from about 0.Type: ApplicationFiled: February 21, 2001Publication date: January 10, 2002Inventor: Kenneth Nathan Price
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Publication number: 20020004471Abstract: A cleaning formulation, in tablet form, capable of providing uniform delivery of cleaning agents, fragrance and colorants while immersed in a the tank of a toilet.Type: ApplicationFiled: February 23, 2001Publication date: January 10, 2002Applicant: THE CLOROX COMPANYInventors: James E. Rader, Erika W. Feller, Rachel A. Watson-Clark
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Patent number: 6334452Abstract: Automatic dishwashing compositions containing water soluble cationic surfactants are shown to reduce glass décor fading without composing tea stain removal.Type: GrantFiled: November 2, 2000Date of Patent: January 1, 2002Assignee: Unilever Home & Personal CareInventors: Alla Tartakovsky, Joseph Oreste Carnali
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Publication number: 20010056056Abstract: A laundry composition, preferably to be used in addition to a laundry detergent, comprises an acidic peroxidic liquid, and particles suspended in the liquid. The particles comprise a protective coating around a core which includes at least one active ingredient selected from a chelating agent, a dye-transfer inhibitor, an anti-fading agent, an anti-bacterial agent, a fabric softener, a transition metal compound and an optical brightener. The particles are stable in the acidic peroxidic liquid but dissolve or disperse under alkaline washing conditions. Surprisingly incorporation of active ingredient(s) into particles appears to give better washing results than the dissolution of such active ingredients in such a liquid.Type: ApplicationFiled: December 21, 2000Publication date: December 27, 2001Inventors: Chris E. Housmekerides, Daniele Fregonese, Luca Zambelli, Dora Zamuner
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Patent number: 6333300Abstract: Water-based dispersions of the &egr;-phthalimido peroxyhexanoic acid comprising as stabilizers copolymers of methyl-vinyl-ether with the acid and/or maleic anhydride, in 1:1 ratio with alternated structure, usable in detergent, hygienizing, cosmetic applications.Type: GrantFiled: August 2, 2000Date of Patent: December 25, 2001Assignee: Ausimont S.p.A.Inventors: Ugo Piero Bianchi, Claudio Troglia
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Publication number: 20010046953Abstract: N,N diacyl O-substituted imide bleach activators and compositions employing them are provided.Type: ApplicationFiled: May 18, 2001Publication date: November 29, 2001Applicant: The Procter & Gamble CompanyInventors: Gregory Scot Miracle, Robert Richard Dykstra
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Patent number: 6323014Abstract: There is provided a process for enhancing the activity of a phenol oxidizing enzyme, comprising adding to the enzyme, as an enhancer for the activity of the enzyme, one or more compounds having the formula: wherein: A is an optionally substituted electron-withdrawing group, chosen from the group consisting of nitrile, carboxyl, and esters and salts thereof, amides, aldehydes, ketones, sulfoxides, sulfones, or sulphonates, and B is an optionally substituted electron-donating group, chosen from the group consisting of the oxide anion, sulfide anion, oxides, amines, imines, hydroxides, sulfides, ethers, carboxylic acids, and halogen substituents, and R1-R5 may each independently represent hydrogen, hydroxy, halogen, nitroso, formyl, carboxyl, and esters and salts thereof, carbamoyl, sulfo, and esters and salts hereof, sulfamoyl, nitro, amino, phenyl, C1-C20 alkyl, C1-C8 alkoxy, carbonyl-C1-C6-alkoxy, aryl-C1-C6-alkyl, and R2 and R5 together may form an alkylene group or an alkenylene group.Type: GrantFiled: June 20, 2000Date of Patent: November 27, 2001Assignee: Unilever Home & Personal Care division of Conopco, Inc.Inventors: Greta Johanna Breel, Daniel Convents, Willem Van Liemt, Ton Swarthoff, Robin Stefan Twisker
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Patent number: 6322748Abstract: A method for removing stains or odors and for disinfecting plastics, dishware, countertops, appliances, and other substrates by activating a bleaching composition with microwaves and applying the activated composition to the substrate to be cleaned, deodorized, and/or sanitized is presented. This method provides enhanced cleaning and improved stain removal as compared to the conventional use of cleaning compositions applied directly to a substrate.Type: GrantFiled: January 25, 1999Date of Patent: November 27, 2001Assignee: The Procter & Gamble CompanyInventors: Howard David Hutton, Kofi Ofosu-Asante
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Publication number: 20010044398Abstract: Detergents and cleaners having improved performance against protein-containing soils, containing a protease of the subtilisin type, in which—in at least one of positions 3, 4, 99, 188, 193, 199 and 211 (BLAP counting)—the amino acid present in that position in the wild-type protease is replaced by another amino acid, and coated particulate alkali metal percarbonate.Type: ApplicationFiled: February 16, 2001Publication date: November 22, 2001Inventors: Horst-Dieter Speckmann, Joerg Poethkow, Thomas Gassenmeier, Peter Schmiedel, Beatrix Kottwitz
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Publication number: 20010044401Abstract: Laundry or cleaning composition comprising: (a) an effective amount, preferably from about 0.0001% to about 99.9%, more typically from about 0.1% to about 25%, of a bleach activator and/or organic percarboxylic acid; (b) a catalytically effective amount, preferably from about 1 ppb to about 99.9%, of a transition-metal bleach catalyst which is a complex of a transition-metal and a cross-bridged macropolycyclic ligand; and (c) at least about 0.1% of one or more laundry or cleaning adjunct materials, preferably comprising an oxygen bleaching agent. Preferred compositions are laundry compositions and automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits through the use of such catalysts in combination with bleach activators and/or organic percarboxylic acids.Type: ApplicationFiled: April 11, 2001Publication date: November 22, 2001Applicant: The Procter & Gamble CompanyInventors: Christopher Mark Perkins, Regine Labeque, Barbara Kay Williams, James Pyott Johnston, David Johnathan Kitko, James Charles Theophile Roger Burckett-St. Laurent, Michael Eugene Burns
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Publication number: 20010044402Abstract: A bleach catalyst system comprising in combination, a macrocyclic organic ligand of formula (I): 1Type: ApplicationFiled: December 19, 2000Publication date: November 22, 2001Inventors: Cong-Yun Dai, Dao-Li Deng, Ronald Hage, Chang-Qing Ye, Hong Zeng
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Patent number: 6316400Abstract: The present invention relates to a liquid bleaching composition comprising a peroxygen bleach and a salt free zwitterionic betaine surfactant. These compositions are suitable to deliver excellent stain removal performance and bleaching performance on fabrics, with improved safety to the fabrics and colors especially under pretreatment conditions.Type: GrantFiled: June 19, 2000Date of Patent: November 13, 2001Assignee: The Procter & Gamble Co.Inventors: Valerio Del Duca, Stefano Giunti, Sabina Antonioli
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Publication number: 20010036908Abstract: A laundry treatment composition comprising peroxygen bleach and a water-soluble or water dispersible rebuild agent for redeposition onto a fabric during the laundry process, wherein the fabric rebuild agent undergoes during the laundry process, a chemical change by which change the affinity of the material for the fabric is increased. The peroxygen bleach was found to increase the deposition of the fabric rebuild agent.Type: ApplicationFiled: March 29, 2001Publication date: November 1, 2001Applicant: Unilever Home & Personal Care USA, Division of Conopco Inc.Inventors: Andrew Hopkinson, Christopher Clarkson Jones, David Richard Mealing
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Patent number: 6310026Abstract: A method of cleaning of an inorganic filler, upon which the inorganic filler used in resin materials for industrial or biological use, particularly dental resin restorative materials, can be more firmly bound to a resin matrix as a substrate, as well as a method of surface processing of the inorganic filler, are provided. The inorganic filler surface is cleaned with an aqueous solution of a peroxo acid and/or a peroxo acid salt, washed with water, and then cleaned with an organic solvent. Further, the cleaned inorganic filler is subjected to a silane coupling processing, thereby the inorganic filler being processed.Type: GrantFiled: March 22, 2001Date of Patent: October 30, 2001Assignee: GC CorporationInventors: Hideaki Shintani, Masayuki Okazaki, Yasuhiro Yoshida, Kenichi Shirai, Bart Van Meerbeek, Daisuke Usuki
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Patent number: 6306219Abstract: The present invention is in the field of liquid or gel detergents. More specifically, the invention relates to a method for removing stains and/or odors and for disinfecting plastics, and other substrates by applying a liquid or gel detergent composition to the substrate and subjecting the substrate to microwaves. This method provides enhanced cleaning and improved stain removal on plastics, and other substrates. These cleaning compositions include a bleaching agent, preferably diacyl peroxide in a liquid or gel detergent formulation. These compositions in combination with the method of microwaving are also very effective in disinfecting and deodorizing substrates.Type: GrantFiled: January 25, 1999Date of Patent: October 23, 2001Assignee: The Procter & Gamble CompanyInventors: Kofi Ofosu-Asante, Howard David Hutton
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Publication number: 20010023237Abstract: A bleaching composition is provided comprisingType: ApplicationFiled: December 20, 2000Publication date: September 20, 2001Inventors: Dirk Johannes Bijl, Ronald Hage, Jan Kevelam, Jean Hypolites Koek, Dennis Stephen Murphy, Irene Erica Smit, Johannes Jacob Verhagen, Pieter Van Der Vlist
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Publication number: 20010023236Abstract: A bleaching composition is provided comprisingType: ApplicationFiled: December 20, 2000Publication date: September 20, 2001Inventors: Dirk Johannes Bijl, Ronald Hage, Jan Kevelam, Jean Hypolites Koek, Dennis Stephen Murphy, Irene Erica Smit, Johannes Jacob Verhagen, Pieter Van Der Vlist
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Publication number: 20010023238Abstract: A process for preventing the redeposition of migrant dyes in a washing liquor by adding to each liter of the washing liquor, which comprises a peroxide-containing detergent, from 0.5 to 150 mg of one or more asymmetric manganese complexes of the salen type.Type: ApplicationFiled: April 13, 2001Publication date: September 20, 2001Inventors: Frank Bachmann, Josef Dannacher, Cornelia Makowka, Gunther Schlingloff, Peter Weingartner, Grit Richter
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Patent number: 6277802Abstract: Detergent formulations containing cationic nitriles are shown to exhibit enhanced stain removal, enhanced starchy soil removal and enhanced enzyme stability as compared to similar formulations containing TAED.Type: GrantFiled: March 24, 2000Date of Patent: August 21, 2001Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.Inventors: Catherine Chiou, Narish Dhirajlal Ghatlia
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Patent number: 6273959Abstract: There is disclosed a semiconductor device cleaning method involving placing a cleaning solution containing 24 wt. % sulfuric acid, 5 wt. % hydrogen peroxide, 0.02 wt. % hydrogen fluoride, 0.075 wt. % n-dodecylbenzenesulfonic acid, and water into a quartz processing vessel and heating to no more than 100° C. A silicon wafer is immersed into the cleaning solution for 10 minutes and then washed by demineralized water for about 7 minutes. The surfaces of foreign particles on the wafer are etched by hydrogen fluoride, and n-dodecylbenzenesulfonic acid combines with the etched surfaces by sulfate ester bonding. The apparent diameter of the foreign particles increases and the repulsive force caused by zeta potential etc. increases, so that the foreign particles are unlikely to adhere to the surface of the silicon wafer permitting the foreign particles to be easily washed away in a water cleaning step.Type: GrantFiled: February 24, 1998Date of Patent: August 14, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Teruhito Oonishi, Ken Idota, Masaaki Niwa, Yoshinao Harada
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Patent number: 6274542Abstract: Storage stable aqueous acidic solutions, often having a pH of up to 1 containing an ester peracid and/or an acid peracid can be obtained by reacting a diester satisfying the general formula R1—O—CO—R2—CO—O—R3 in which R1 and R3 each represents a alkyl group containing from 1 to 4 carbon atoms which may the same of different and R2 represents an aliphatic alkylene group optionally unsaturated which may be linear or branched containing from 2 to 6 carbon atoms with aqueous hydrogen peroxide in the presence of an acid, such as sulphuric acid and permitting the compositions to progress towards equilibrium concentrations. By starting with a diester, perhydrolysis generates an ester peracid which is a particularly effective peracid. The process can be controlled to produce solutions containing a high peracid content and within a wide range of ratios of ester peracid to acid peracid.Type: GrantFiled: November 2, 1999Date of Patent: August 14, 2001Assignee: Solvay Interox LimitedInventors: Graham Carr, Alun P. James, Kelly J. Morton, John P. Sankey, Valerie Lawton
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Publication number: 20010012826Abstract: A process of washing textiles is presented involving the delayed release of ingredients from a detergent composition. The process involves first dissolving the detergent in water resulting in a pH below 8, slowly dissolving the coating on a coated alkalizing agent to raise the pH to above 8.5, and dissolving the polymeric acid coating on a detergent ingredient, due to the pH above 8.5, to release the ingredient into the wash water.Type: ApplicationFiled: February 26, 2001Publication date: August 9, 2001Applicant: Henkel Kommanditgesellschaft auf AktienInventors: Thomas Gassenmeier, Juergen Millhoff, Thomas Mueller-Kirschbaum
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Publication number: 20010012825Abstract: The invention relates to catalytically bleaching substrates, especially laundry fabrics, with atmospheric oxygen or air. A method of bleaching a substrate is provided that comprises applying to the substrate, in an aqueous medium, a specified organic substance which forms a complex with a transition metal, the complex catalysing bleaching of the substrate by atmospheric oxygen. Also provided is a bleaching composition comprising, in an aqueous medium, atmospheric oxygen and an organic substance which forms a complex with a transition metal, the complex catalysing bleaching of the substrate by the atmospheric oxygen, wherein the aqueous medium is substantially devoid of peroxygen bleach or a peroxy-based or -generating bleach system.Type: ApplicationFiled: December 19, 2000Publication date: August 9, 2001Inventor: Ronald Hage
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Patent number: 6265366Abstract: A process for bleaching a surface, by applying to that surface an aqueous composition having a pH of 2 or less and comprises a mixture of (a) an aqueous composition comprising hydrogen peroxide or an organic peracid having a pH of greater than 2 but less than 7 and (b) an acidic composition wherein components (a) and (b) are mixed not more than two hours before being applied to the surface requiring bleaching. The organic acid of component (a) has the formula XC(O)OOH where X is hydrogen or CH3(CH2)n and n is 0 to 8. The acid composition (b) comprises hydrochloric, sulphamic, tartaric, phosphoric, oxalic, citric, salicylic or ascorbic acids.Type: GrantFiled: March 17, 1998Date of Patent: July 24, 2001Assignee: Reckitt Benckiser (UK) LimitedInventor: Heather Elizabeth Bonett
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Patent number: 6262008Abstract: The invention relates to a stable sodium carbonate peroxyhydrate which is suited for use together with crystalline synthetic silicate-based detergents and is coated with an alkali metal sulfate and a copolymer or terpolymer of vinyl pyrrolidone.Type: GrantFiled: September 13, 1999Date of Patent: July 17, 2001Assignee: Kemira Chemicals OyInventors: Ilkka Renvall, Timo Korvela
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Patent number: 6262007Abstract: Self-thickened aqueous cleaning compositions are described which comprise an alkyl sulfate anionic surfactant and an electrolyte system. The compositions are made physically stable, even at low temperature, by incorporating therein a nonionic surfactant from a selected class.Type: GrantFiled: May 3, 1994Date of Patent: July 17, 2001Assignee: The Procter & Gamble CompanyInventors: Stefano Scialla, Peter Rosalia Joannes Geboes, Michel Jean Carrie, Eddy Vos
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Patent number: 6255266Abstract: A method of cleaning elemental copper, cobalt, or nickel from the surface of equipment hardware without corroding or damaging the equipment parts and surfaces in the event of wafer breakage and non-wafer breakage is described. A solution comprising an alkyldione peroxide, a stabilizing agent, and alcohols is used to oxidize the metal and form soluble complexes which are removed by the cleaning solution. Also, a novel alkyldione peroxide solution for cleaning elemental copper, cobalt, or nickel from the surface of equipment hardware in the event of wafer breakage and non-wafer breakage is provided.Type: GrantFiled: September 11, 2000Date of Patent: July 3, 2001Assignee: Chartered Semiconductor Manufacturing Ltd.Inventors: Subhash Gupta, Simon Choo I, Mei Sheng Zhou, Paul Ho
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Patent number: 6255272Abstract: The invention relates to particles comprising a peroxy compound with capability of realeasing hydrogen peroxide or peroxy acids in aqueous solutions and an amino acid of the formula (HOOC)2N—CnHmCOOH—R in which R is H, CH2OH OR CH3, n is 1, 2 or 3 and m is 0-2n; or a salt thereof. The invention also relates to use of the particles and a composition comprising such particles.Type: GrantFiled: April 5, 2000Date of Patent: July 3, 2001Assignee: Eka Chemicals ABInventors: Hans Lagnemo, Monica Jigstam
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Patent number: 6248707Abstract: A method for the “dry” production of sodium percarbonate (dry process), in which monohydrate crystals of sodium carbonate are reacted with a quasi-stoichiometric quantity of concentrated aqueous hydrogen peroxide solution, relative to the quantity of active oxygen required in the sodium percarbonate to be produced. This method can be combined to great advantage with subsequent compaction of the sodium percarbonate obtained. Sodium percarbonate products containing varying concentrations of active oxygen of at least 10 weight percent, particularly high active oxygen concentrations of above 14.5 weight percent, can be produced. The resulting sodium percarbonate products are distinguished in that they have remarkably advantageous dissolution rates, stabilities and compatibility with detergent bases, and are superior to conventional sodium percarbonates obtained, for example, by a crystallization process.Type: GrantFiled: August 13, 1999Date of Patent: June 19, 2001Assignee: Solvay Interox GmbHInventors: Werner Doetsch, Manfred Mathes, Helmut Honig, Gabriele Wasem
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Patent number: 6245731Abstract: The combination of packaging system comprising re-closing means with a stack of tablets (1) containing a bleaching agent unstable in a moisture environment, characterized in that the packaging device has a Moisture Vapor Transfer Rate of less than 20 g/m2/day measured at 40° C. and 75% eRH for avoiding ingress of water is disclosed. The packaging system may also have a micro-hole to allow gas release.Type: GrantFiled: February 28, 2000Date of Patent: June 12, 2001Assignee: The Procter & Gamble CompanyInventors: Bernard Cossec, Jacky Pierre Duquet, Gregory Bruce Huntington
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Patent number: 6242408Abstract: This invention relates to organosilyl peroxide compounds which are stable in aqueous systems and are used for bleaching and cleaning applications. More particularly, this invention is concerned with the stability of bis(organosilyl)peroxides when formulated in aqueous and non-aqueous delivery systems. The liquid detergents containing the organosilyl peroxide compounds of this invention exhibit excellent bleaching performance and stain removal properties on fabrics at typical low wash temperatures.Type: GrantFiled: November 25, 1998Date of Patent: June 5, 2001Assignees: Dow Corning Corporation, Dow Corning, S.A.Inventors: Russell Allen Elms, Franck Renauld, Anil K. Tomar
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Patent number: 6242407Abstract: The present invention relates to a liquid composition suitable for bleaching fabrics comprising a peroxygen bleach, from 0.001% to 10% by weight of the total composition of propyl gallate, and from 0.001% to 10% by weight of an antioxidant. These compositions are suitable for bleaching soiled fabrics, and especially pretreating fabrics while being safe to the fabrics and colors.Type: GrantFiled: May 21, 1999Date of Patent: June 5, 2001Assignee: The Procter & Gamble CompanyInventors: Gabriella Bertacchi, Valerio Del Duca, Carlo Ricci, Roberto Scaramella
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Patent number: 6239095Abstract: A process for the preparation of coated peroxygen compounds, in particular sodium percarbonate, by fluidized bed coating. By using a fluidized bed reactor with a radial inflow base, the passage openings of which allow the fluidized bed gas to emerge in the region of the opening at an angle of less than 35°, measured with respect to the horizontal, in the form of directed part streams, and in which are arranged spray nozzles, the pulse of which points in the same direction as the pulse of the fluidizing gas, it is possible to obtain products with an increased active oxygen stability. A circular reactor, the inflow base of which has lamellae overlapping like turbine blades and nozzles aligned in the direction of rotation of the fluidized bed is preferred.Type: GrantFiled: July 6, 1999Date of Patent: May 29, 2001Assignee: Degussa-Huls AktiengesellschaftInventors: Birgit Bertsch-Frank, Martin Bewersdorf, Lothar Kaiser, Rainer Kohlen, Ralph Overdick, Michael Scheibe
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Patent number: 6235699Abstract: Liquid compositions having a pH up to 7 comprise from 0.01% to 20% by weight of the total composition of a peroxygen bleach, from 0.001% to 30% by weight of the total composition of an ethoxylated nonionic surfactant, from 0.001% to 20% by weight of a zwitterionic betaine surfactant at a weight ratio of the ethoxylated nonionic surfactant to the zwitterionic betaine surfactant of from 0.01 to 20. These compositions are suitable to deliver improved stain removal performance and improved bleaching performance on various inanimate surfaces.Type: GrantFiled: August 3, 1999Date of Patent: May 22, 2001Assignee: The Procter & Gamble CompanyInventors: Valerio Del Duca, Dennis Gerard O'Sullivan, Carlo Ricci, Roberto Scaramella, Stefano Giunti, Sabina Antonioli
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Patent number: 6228179Abstract: A surface treatment composition containing a complexing agent as a metal deposition preventive in a liquid medium, in which the complexing agent is an ethylenediaminephenol derivative of the following general formula (1) or its salt: wherein X1 and X2 are hydroxyl groups; Y1 to Y8 are respectively independently a hydrogen atom, a hydroxyl group, a halogen atom, a carboxyl group, a phosphonic acid group, a sulfonic acid group, a carbonyl group, a nitro group, a nitroso group, an amino group, an imino group, a nitrilo group, a nitrile group, a thiocyanate group, a hydroxyamino group, a hydroxyimino group, or an alkyl or alkoxy group which may have a substituent, provided that at least one of Y1 to Y8 is not a hydrogen atom; Z1 to Z4 are respectively independently a hydrogen atom, a carboxyl group or a sulfonic acid group; and R1 to R4 are respectively independently a hydrogen atom or an alkyl group which may have a substituent.Type: GrantFiled: March 10, 2000Date of Patent: May 8, 2001Assignee: Mitsubishi Chemical CorporationInventor: Hitoshi Morinaga
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Patent number: 6218352Abstract: This invention relates to a composite composition comprising granular sodium percarbonate with better stability in storage and fast solubility in water for the purpose of the sole use thereof or as a composition of a bleaching agent.Type: GrantFiled: March 9, 1999Date of Patent: April 17, 2001Assignee: Oriental Chemical IndustriesInventors: Sang Hwa Lee, Chong Yun Kwag, Jong Pill Lee, Han Seog Cho
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Patent number: 6214782Abstract: Detergent formulations containing cationic nitriles are shown to exhibit reduced silver tarnishing as compared to similar formulations containing TAED.Type: GrantFiled: March 24, 2000Date of Patent: April 10, 2001Assignee: Unilever Home & Personal Care, USA, division of Conopco, Inc.Inventors: Catherine Chiou, Narish Dhirajlal Ghatlia
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Patent number: 6207108Abstract: Storage stable, aqueous acidic solutions having a pH in the range of from 1 to 5 comprising at least one ester peracid having general formula where R represents an alkyl group having from 1 to 4 carbons and x equals 1 to 4, are provided. The solutions can be prepared by contacting an aqueous solution of a carboxylic compound having general formula where x is from 1 to 4 and R represents an alkyl group having from 1 to 4 carbons with an inorganic peroxygen compound, preferably hydrogen peroxide, at a pH of less than 4 until at least some ester peracid is produced, and thereafter adjusting the pH to be in the range of from 1 to 5, if necessary.Type: GrantFiled: February 28, 1997Date of Patent: March 27, 2001Assignee: Solvay Interox LimitesInventors: Graham Carr, Alun Pryce James
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Patent number: 6194368Abstract: The invention relates to a dishwasher detergent in the form of a multi-layer tablet comprising a bleach, a bleach activator, a silver/copper corrosion inhibitor and also other customary constituents, where the silver/copper corrosion inhibitor is not present together with the bleach and the bleach activator in one layer.Type: GrantFiled: April 10, 1998Date of Patent: February 27, 2001Assignee: Joh A. Benckiser, GmbHInventors: Guido Wäschenbach, Paul Robinson, Brigitte Sandmann, Harald Magg, Wilfried Höflinger
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Patent number: 6194367Abstract: The present invention discloses an alkaline cleaning composition for cleaning heavily soiled metal surfaces such as food fryers, baking pans, high temperature pasteurizers, and beer kettles, ceramic surfaces such as restaurant grade ceramic china plates and platters, and plastic surfaces. The cleaning composition is noncaustic and includes a peroxygen compound, a chelate, and a metasilicate and/or sesquisilicate. A preferred cleaning composition further includes a surfactant and hydrated builder.Type: GrantFiled: April 27, 1999Date of Patent: February 27, 2001Assignee: Charvid Limited Liability Co.Inventor: Charles Bullick Talley
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Patent number: 6187055Abstract: A detergent composition containing surfactant, builder component, oxygen-based bleaching agent, bleach activator, and enzyme, wherein the builder component is an oxidatively modified oligosaccharide which contains a —COOH group instead of a —CH(OH)—CHO group at its originally reducing end group and which has an average degree of oligomerization of from 2 to 20.Type: GrantFiled: June 26, 1998Date of Patent: February 13, 2001Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Beatrix Kottwitz, Joerg Poethkow, Horst Upadek
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Patent number: 6187740Abstract: Granular detergent compositions contain a bleach and a cellulase enzyme derived from Trichodenna SPP. The compositions are especially useful in a fabric laundering process where bleaching activity is desired.Type: GrantFiled: January 11, 2000Date of Patent: February 13, 2001Assignee: The Procter & Gamble CompanyInventors: Jean-Luc Philippe Bettiol, Christiaan Arthur Jacques Kamiel Thoen
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Patent number: 6180580Abstract: Soaking compositions are disclosed which comprise oxygen bleach, a sorbitan ester in combination with an alkyl sulphonate surfactant. Said compositions are diluted in water to form soaking liquors. The invention is particularly effective in removing particulate soils like silt and clay from fabrics as well as enzymatic stains and bleachable stains.Type: GrantFiled: August 25, 1999Date of Patent: January 30, 2001Assignee: The Procter & Gamble CompanyInventors: Gabriella Ardia, Stefano Scialla