With Heavy Metal, Nitrogen, Or Oxygen Containing Activator, Catalyst, Or Precursor Patents (Class 510/376)
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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: 6365562Abstract: Laundry detergents and cleaners which, in addition to a peroxide compound, comprise a compound of the formula (R1R1)N—X—N(R1R1) (I) or metal complexes thereof, where X and R1 have the meanings listed in the description, are claimed.Type: GrantFiled: April 20, 2001Date of Patent: April 2, 2002Assignee: Clariant GmbHInventors: Claudia Fischer, Nicole Reichardt, Jörg Issberner
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Patent number: 6358904Abstract: A multicomponent system for use in detergent substances consists of oxidation catalysts and suitable oxidizing agents and aliphatic, cycloaliphatic, heterocyclic or aromatic compounds containing NO, NOH or (A).Type: GrantFiled: September 24, 1997Date of Patent: March 19, 2002Inventor: Hans-Peter Call
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Patent number: 6358902Abstract: A detergent tablet which contains a bleach activator is disclosed. The bleach activator is in particulate form and has a particle size in a range of from about 100 microns to about 4000 microns. The bleach activator is present in a range of from about 0.1% to about 15% by weight of the detergent tablet.Type: GrantFiled: October 25, 2000Date of Patent: March 19, 2002Assignee: The Procter & Gamble CompanyInventors: Adrian John Waynforth Angell, Les Charles Zorb
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Patent number: 6358905Abstract: The invention relates to bleach catalysts for use in cleaning or detergent compositions. The bleach catalysts used are water-soluble complexes of (a) one or more cobalt ions and, as ligand, (b) one or more aminated and/or alkylated mono- or oligo-saccharides, optionally in reduced or oxidized form, and salts thereof. The complexes according to the invention are good bleach catalysts and have high hydrolytic stability.Type: GrantFiled: July 7, 2000Date of Patent: March 19, 2002Assignee: U.S. Borax Inc.Inventors: Carmel M. Render, Michael J. Greenhill-Hooper, Clifford A. Bunton
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Patent number: 6352562Abstract: Method for cleaning fabrics using laundry detergents and bleaching systems which comprise substituted benzoyl caprolactam bleach activators are presented. The bleach activators are effective under mixed soil conditions, especially mixtures of hydrophobic and hydrophilic soils and stains.Type: GrantFiled: November 14, 2000Date of Patent: March 5, 2002Assignee: The Procter & Gamble Co.Inventors: Alan David Willey, Michael Eugene Burns
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Publication number: 20020016277Abstract: Compounds of the formulaType: ApplicationFiled: April 20, 2001Publication date: February 7, 2002Applicant: Clariant GmbHInventors: Claudia Fischer, Jorg Issberner, Fritz Vogtle
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Publication number: 20020013245Abstract: 1 The invention concerns a solid composition substantially comprising between 5 and 98 parts by weight of heterocyclic compounds (I) R1—X—L1, wherein L1 stands for groups with a cyclic carbamate, a lactoneoxy or a lactam structure, X means a carbonyl, a double carbonyl or a heterocarbonyl group, and R1 designates an organic group or a second L1 group, and/or oxime esters (II), wherein L2 stands for an oxime group (a) or (b), R2, R3 and Z4 designating organic groups or bridge members, L3 stands for the R1 group, a second L2 oxime group or a carbon ester group, carbon amide group, phenolate group, vinyloxy group, sulphoneamide group, imidazole group, amidolactam group, cyclic carbamate group, lactoneoxy group or lactam group, and m means 0 or 1. The composition further comprises between 2 and 95 parts by weight of inert porous carrier materials with an internal area of between 10 and 500 m2/g.Type: ApplicationFiled: June 16, 1998Publication date: January 31, 2002Inventors: GUENTER OETTER, THOMAS WEHLAGE, ELISABETH KAPPES, REINHARD MUELLER, DIETER BOECKH, MICHAEL SCHOENHERR
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Publication number: 20020010120Abstract: The invention relates to catalytically bleaching substrates, especially laundry fabrics, with a bleaching composition and a peroxyl source.Type: ApplicationFiled: February 28, 2001Publication date: January 24, 2002Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.Inventors: Ronald Hage, Daniela Nuhlen, Thomas Weyhermuller, Karl Wieghardt
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Patent number: 6340661Abstract: A bleaching composition for laundry fabrics is provided, comprising: a bleach catalyst comprising a ligand which forms a complex with a transition metal, the complex catalysing bleaching of stains in the absence of peroxygen bleach or a peroxy-based or -generating bleach system; and a dye transfer inhibition agent, and wherein the composition is substantially devoid of peroxygen bleach or a peroxy-based or -generating bleach system. The bleaching composition provides effective bleaching performance on fabric stains without unacceptable transfer of dyes between fabrics.Type: GrantFiled: February 28, 2001Date of Patent: January 22, 2002Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.Inventors: Maria Petra van Deurzen, Ronald Hage, Simon Marinus Veerman
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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: 20020004473Abstract: Laundry or cleaning composition comprising: (a) 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 (b) 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.Type: ApplicationFiled: April 11, 2001Publication date: January 10, 2002Applicant: The Procter & Gamble CompanyInventors: Daryle Hadley Busch, Simon Robert Collinson, Timothy Jay Hubin, 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: 20010053755Abstract: The present invention provides a process for inhibiting the re-absorption of migrating dyes in the wash liquor, comprising introducing into a wash liquor containing a peroxide-containing detergent, from 0.5 to 150, preferably from 1.5 to 75, especially from 7.Type: ApplicationFiled: April 13, 2001Publication date: December 20, 2001Inventors: Frank Bachmann, Josef Dannacher, Martin Studer, Beat Freiermuth, Cornelia Makowka, Peter Weingartner, Grit Richter, Gunther Schlingloff
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Patent number: 6326341Abstract: Automatic dishwashing detergent compositions comprising a mixed surfactant system comprising low cloud point nonionic surfactant and charged surfactant selected from anionic surfactants, zwitterionic surfactants, and mixtures thereof.Type: GrantFiled: April 29, 1999Date of Patent: December 4, 2001Assignee: The Procter & Gamble CompanyInventors: Kuntal Chatterjee, William Michael Scheper, Lynda Anne Speed, Graeme Duncan Cruickshank
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Patent number: 6326342Abstract: The invention relates to a bleaching composition. In particular the invention provides a bleaching composition which comprises: (i) a bleaching agent, and (ii) as bleach catalyst, a polyoxometalate of Keggin, Dawson or Finke structure and having the general formula (II) (A′)a′(Cox′Yy′Mm′Oo).cH2O (II) wherein the or each A′, which may be the same or different, is a cation; a′ has a value such that (A′)a, counters the anionic charge of (Cox′Yy′Mm′Oo); x′ has a value of 0.25 to 4; the or each Y, which may be the same or different, represents P, Si or Co; y′ is 1 or 2; o has a value of 34 to 68; the or each M, which may be the same or different, represents W, Mo, V, Nb or Ta; m′ has a value of between 9 and 18; c has a value of between 0 and 84. The bleaching compositions according to the invention have good bleaching performance and can be used without a bleach activator, e.g.Type: GrantFiled: August 22, 2000Date of Patent: December 4, 2001Assignee: U.S. Borax Inc.Inventors: Michael J. Greenhill-Hooper, Fernando Rey-Garcia, Avelino Corma-Canos, Jose Luis Jorda-Moret
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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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Publication number: 20010046951Abstract: The present invention provides a bleaching detergent composition exhibiting a wide bleaching effect for various stains including hydrophilic stains and olephilic stains, as well as an high bleaching effect and dye-transfer inhibiting effect in a wide range of temperature from a low to a high temperature of laundry water. That is, the present invention provides a bleaching detergent composition comprising (a) an alkannitrile compound having a quaternary ammonium group bondeded to a carbon atom to which the nitrile group is bonded, (b) an inorganic peroxide and (c) an alkali metal carbonate and further comprising component (d-i) an alkanoyloxybenzenesulfonic acid having an alkanoyl group of 6 to 14 carbon atoms or an alkanoyloxybenzenecarboxylic acid having an alkanoyl group of 6 to 14 carbon atoms or a salt thereof and/or (d-ii) tetraacetylethylenediamine.Type: ApplicationFiled: January 29, 2001Publication date: November 29, 2001Applicant: Kao CorporationInventors: Nobuyuki Ogura, Muneo Aoyagi
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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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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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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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Patent number: 6319888Abstract: A system for forming and releasing an aqueous peracid solution is disclosed. The system includes a container and a peracid forming composition provided within the container. The container is permeable to the passage of water and aqueous peracid solution. The peracid forming composition includes a peracid precursor and a peroxygen source. Preferably, the peracid forming composition includes a chemical heater capable of releasing heat upon hydration. When placed in water, water enters the container and interacts with the peracid forming composition provided within the container. The water combines with the peracid precursor and peroxygen source to provide an aqueous peracid composition. The presence of a chemical heater within the container provides for the generation of heat within the container which enhances the rate of peracid formation. The peracid solution leaves the container and forms an effective sanitizing amount of sanitizer.Type: GrantFiled: December 13, 2000Date of Patent: November 20, 2001Assignee: Ecolab, Inc.Inventors: G. Jason Wei, David D. McSherry
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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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Patent number: 6306812Abstract: Laundry or cleaning composition comprising: a) an effective amount of a bleach activator and/or organic percarboxylic acid; b) a catalytically effective amount 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. 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 perearboxylic acids.Type: GrantFiled: September 7, 1999Date of Patent: October 23, 2001Assignee: Procter & Gamble Company, TheInventors: 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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Patent number: 6306808Abstract: The present invention relates to the use of certain manganese complexes as catalysts for reactions with peroxy compounds for bleaching colored stains on hard surfaces. The invention also relates to cleaning agents for hard surfaces comprising such manganese catalysts.Type: GrantFiled: February 15, 2001Date of Patent: October 23, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Menno Hazenkamp, Marie-Josée Dubs, Frank Bachmann, Gunther Schlingloff, Rachel Allemann, Josef Dannacher
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Patent number: 6302921Abstract: A method for bleaching stained fabrics is provided by washing a stained fabric in an aqueous wash liquor in the presence of a wash additive that comprises a ligand that forms a transition metal complex as bleach catalyst, the complex catalysing bleaching of stains by atmospheric oxygen. The wash additive preferably comprises an iron complex comprising the ligand N,N-bis(pyridin-2-yl-methyl)-1,1-bis(pyridin-2-yl)-1-aminoethane. One or both of the wash additive and the wash liquor are substantially devoid of peroxygen bleach or a peroxy-based or -generating bleach system. The wash additive provides improved or broader stain profile bleaching.Type: GrantFiled: August 29, 2000Date of Patent: October 16, 2001Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.Inventors: Michel Gilbert Delroisse, David Andrew Jones, Richard George Smith, John Francis Wells
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Publication number: 20010025019Abstract: A bleaching composition is provided for effective bleaching with a bleach catalyst at low temperatures.Type: ApplicationFiled: December 20, 2000Publication date: September 27, 2001Inventors: Dirk Johannes Bijl, Ronald Hage, Jan Kevelam, Jean Hypolites Koek, Dennis Stephen Murphy, Irene Erica Smit, Johannes J. Verhagen, Pieter van der Vlist
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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: 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: 6277153Abstract: A chemical cleaning system for a multi-tank or a single-tank laundry washing machine, having at least two separate components for aqueousdissolution or dilution to respective use concentrations, a first component comprising a proteolytic enzyme, and a second component comprising an imidoperoxycarboxylic acid, particularly phthaloylaminoperoxycaprbic acid (PAP), wherein the first component is introduced into a prewash zone or step, and the second component is introduced into a main wash zone or step. When using this system, it was found that effective cleaning could be obtained even at relatively low main wash temperatures of 45-55° C. As a result, much less energy was needed and a considerable reduction of textile damage was observed as compared with cleaning systems of the prior art.Type: GrantFiled: July 13, 2000Date of Patent: August 21, 2001Assignee: Diversey Lever, Inc.Inventors: Eddy Petrus Van Kouwen, Frederik Jan Schepers, Rudolf Comelis Verheul, Wilhelm Ewald Smit
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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: 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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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: 20010010101Abstract: A method of treating a textile such as a laundry fabric is provided, in which the textile is contacted with a specified organic substance which forms a complex with a transition metal, whereby the complex catalyses bleaching of the textile by atmospheric oxygen after the treatment. The organic substance may be used in dry form, or in a liquor that is then dried, such as an aqueous spray-on fabric treatment fluid or a wash liquor for laundry cleaning, or a non-aqueous dry cleaning fluid or spray-on aerosol fluid. The method can confer cleaning benefits to the textile after the treatment. Also provided is a dry textile having an organic substance applied or deposited thereon, whereby bleaching by atmospheric oxygen is catalysed on the textile.Type: ApplicationFiled: December 19, 2000Publication date: August 2, 2001Inventor: Ronald Hage
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Patent number: 6251845Abstract: The present invention relates to detergent compositions, including laundry, fabric care, dishwashing, and hard surface cleaner compositions, comprising an oxygenase directed to body soils, which provide effective and efficient cleaning of everyday body stains and/or soils and provide sanitisation of the treated surfaces. Furthermore, the detergent compositions of the present invention provide substantive fabric realistic items cleaning and whitening performance when formulated as a laundry detergent composition.Type: GrantFiled: January 10, 2000Date of Patent: June 26, 2001Assignee: The Procter & Gamble CompanyInventors: Ivan Maurice Alfons Jan Herbots, Alfred Busch
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Publication number: 20010003737Abstract: A fabric bleaching composition comprising a peroxy compound and a specified manganese compound is disclosed, as well as a process for bleaching and/or cleaning a fabric by contacting it with said fabric bleaching composition.Type: ApplicationFiled: October 13, 1998Publication date: June 14, 2001Inventors: DIETER REINEHR, GEORGES METZGER
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Patent number: 6245729Abstract: A system for forming and releasing an aqueous peracid solution is disclosed. The system includes a container and a peracid forming composition provided within the container. The container is permeable to the passage of water and aqueous peracid solution. The peracid forming composition includes a peracid precursor and a peroxygen source. Preferably, the peracid forming composition includes a chemical heater capable of releasing heat upon hydration. When placed in water, water enters the container and interacts with the peracid forming composition provided within the container. The water combines with the peracid precursor and peroxygen source to provide an aqueous peracid composition. The presence of a chemical heater within the container provides for the generation of heat within the container which enhances the rate of peracid formation. The peracid solution leaves the container and forms an effective sanitizing amount of sanitizer.Type: GrantFiled: July 27, 1999Date of Patent: June 12, 2001Assignee: Ecolab, Inc.Inventors: G. Jason Wei, David D. McSherry
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Patent number: 6245115Abstract: A method of treating a textile such as a laundry fabric is provided, in which the textile is contacted with an organic substance which forms a complex with a transition metal, whereby the complex catalyses bleaching of the textile by atmospheric oxygen after the treatment. The organic substance may be used in dry form, or in a liquor that is then dried, such as an aqueous spray-on fabric treatment fluid or a wash liquor for laundry cleaning, or a non-aqueous dry cleaning fluid or spray-on aerosol fluid. The method can confer cleaning benefits to the textile after the treatment. Also provided is a dry textile having an organic substance applied or deposited thereon, whereby bleaching by atmospheric oxygen is catalyzed on the textile.Type: GrantFiled: September 1, 1999Date of Patent: June 12, 2001Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.Inventors: Adrianus Cornelius Maria Appel, Ronald Hage, Gerrit Van Der Voet
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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: 6242409Abstract: 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, an 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: GrantFiled: September 1, 1999Date of Patent: June 5, 2001Assignee: Unilever Home & Personal Care USAInventors: Adrianus Cornelis Maria Appel, Ronald Hage, Gerrit van der Voet
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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: 6235697Abstract: A laundry detergent composition is provided for enhanced whitening and stain removal of washed laundry comprising: a) from about 1% to about 50%, by weight, of a surfactant or surfactant mixture selected from the group consisting of anionic and nonionic surfactants; b) a protease enzyme in an amount sufficient to provide from at least about 0.030 to about 3.0 Kilo Novo Protease Units (KNPU) of activity of protease enzyme per gram of detergent composition; c) a cellulase enzyme of the endoglucanase type in an amount sufficient to provide from about 0.5 to about 100 CMC units per gram of detergent composition; and d) from about 0.5% to about 10% by weight, of an acrylic acid-based polymer and copolymer.Type: GrantFiled: May 12, 2000Date of Patent: May 22, 2001Assignee: Colgate-Palmolive Co.Inventors: Joseph Robert Knorr, Barbara Hepler, Mary Holmgren
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Patent number: 6235695Abstract: Complexes of the transition metals cobalt, iron, copper, and ruthenium having at least one and preferably at least five ammonia ligands are used to activate peroxygen compounds in aqueous cleaning solutions for hard surfaces. Compositions preferably contain 0.0025% to 0.25 by weight of the activating complex.Type: GrantFiled: October 1, 1998Date of Patent: May 22, 2001Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Helmut Blum, Peter Jeschke, Juergen Haerer, Siglinde Erpenbach, Christian Nitsch
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Patent number: 6228127Abstract: A bleaching or washing composition comprising a peroxy compound and a specified cobalt compound is disclosed, as well as a process for bleaching or washing a fabric or dishes by contacting them with said bleaching or washing composition.Type: GrantFiled: April 10, 1998Date of Patent: May 8, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Dieter Reinehr, Georges Metzger
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Patent number: 6225274Abstract: A method for washing dishes containing colored soil is presented involving contacting the dish surface with a dishwashing detergent containing a peroxygen compound and an activator compound of the formula R1R2R3N+CH2CN X− where R1, R2 and R3 independently of one another represent an alkyl, alkenyl or aryl group containing 1 to 18 carbon atoms, and wherein R2 and R3 may be part of a heterocycle including the N atom, and X is an anion, to form an aqueous dishwashing detergent. The method is useful for washing colored stains from crockery and cutlery, and is effective at temperatures below 80° C.Type: GrantFiled: May 26, 1999Date of Patent: May 1, 2001Assignee: Henkel Kommandigesellschaft auf AktienInventors: Christian Nitsch, Rainer Jeschke
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Patent number: 6225276Abstract: A process for 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 pH 8, slowly dissolving the coating on a coated alkalizing agent to raise the pH to above pH to above pH 8.5, and above pH 8.5 the polymeric acid coating on a detergent ingredient dissolves, releasing the ingredient into the wash water. Also presented is a detergent composition for delayed bleaching of 1 to 40 percent by weight of a coated bleaching agent having a coating which dissolves slowly in water irrespective of the pH value, 0.5 to 15 percent by weight of a bleach activator coated with a polymeric acid, and 0.1 to 40 percent by weight of an acidifying agent. The process results in a delayed release of bleaching in the wash cycle.Type: GrantFiled: August 6, 1999Date of Patent: May 1, 2001Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Thomas Gassenmeier, Juergen Millhoff, Thomas Mueller-Kirschbaum
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Patent number: 6218351Abstract: Laundry or cleaning composition comprising: (a) 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 (b) at least about 0.1% of one or more laundry or cleaning adjunct materials, preferably comprising an oxygen bleaching agent is disclosed. Preferred compositions are laundry compositions and automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits through the use of such catalysts.Type: GrantFiled: September 7, 1999Date of Patent: April 17, 2001Assignee: The Procter & Gamble CompnayInventors: Daryle Hadley Busch, Simon Robert Collinson, Timothy Jay Hubin, Christopher Mark Perkins, Regine Labeque, Barbara Kay Williams, James Pyott Johnston, David Johnathan Kitko, James Charles Theophile Roger Burckett-St. Laurent
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Patent number: 6214785Abstract: What is claimed are bleach activator granules which are obtained by mixing a bleach activator with a binder and x% by weight of the total amount of a water-soluble polymer, spraying of water which comprises 100-x% by weight of the total amount of the water-soluble polymer, where x is a number from 0 to 100, and subsequent granulation and drying.Type: GrantFiled: September 8, 1999Date of Patent: April 10, 2001Assignee: Clariant GmbHInventors: Johannes Himmrich, Jürgen Cramer
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Patent number: 6211130Abstract: The invention relates to the use of quaternary acetonitrile compounds corresponding to formula (I): in which R1, R2 and R3 independently of one another represent an alkyl, alkenyl or aryl group containing 1 to 18 carbon atoms and the groups R2 and R3 may also be part of a heterocycle including the N atom and, optionally, other hetero atoms and X is a charge-equalizing anion, for activators for detergents, more particularly detergents containing inorganic peroxygen compounds. The activators may be directly added to liquid detergents or may be added to the wash liquor together with the detergents in the form of aqueous preparations. Without the addition of hydrogen peroxide, a distinct color-lightening effect is obtained, even at low washing temperatures.Type: GrantFiled: July 23, 1998Date of Patent: April 3, 2001Assignee: Henkel Kommanditgesellschaft Auf AktienInventors: Jaume Josa Pons, Adolf Arranz Catalina
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Patent number: 6207634Abstract: A non-aqueous liquid detergent composition comprising a bleaching agent and/or bleach precursor characterized in that said nonaqueous liquid detergent comprises less than 1% of free water.Type: GrantFiled: April 19, 2000Date of Patent: March 27, 2001Assignee: The Procter & Gamble CompanyInventors: Axel Meyer, Steven Jozef Louis Coosemans, Jean-Pol Boutique, James Pyott Johnston, Diane Parry, David Michael Wise
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Patent number: 6200944Abstract: A solid bleach precursor composition is provided comprising a bleach precursor and a surfactant system, whereby the composition exhibits effective solublisation of its bleach precursor component.Type: GrantFiled: December 22, 1998Date of Patent: March 13, 2001Assignee: The Procter & Gamble CompanyInventors: Anthony Dovey, Sanjeev Sharma