With Heavy Metal Containing Catalyst Or Activator (e.g., Containing Mn, Cu, Fe, Etc.) Patents (Class 510/311)
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Publication number: 20030017956Abstract: The present invention relates to bleach activator particles that are useful in compositions such as detergent compositions. The present invention also encompasses detergent compositions containing such particles.Type: ApplicationFiled: June 14, 2002Publication date: January 23, 2003Inventors: Karl Matthew Preissner, Angelica Damaris Brown
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Patent number: 6506218Abstract: 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: January 17, 2002Date of Patent: January 14, 2003Assignee: Clariant GmbHInventors: Claudia Fischer, Nicole Reichardt, Jörg Issberner
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Publication number: 20030008797Abstract: The invention relates to catalytically bleaching substrates, especially laundry fabrics, with a bleaching composition using either air or a peroxyl source.Type: ApplicationFiled: March 20, 2002Publication date: January 9, 2003Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.Inventors: Ronald Hage, Malcolm Philip Nicholls
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Publication number: 20030008798Abstract: Bleaching activator granules comprising (A) an organic peracid precursor represented by the following general formula, (I): 1Type: ApplicationFiled: May 20, 2002Publication date: January 9, 2003Inventors: Yoshinobu Imaizumi, Koichi Ohori
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Publication number: 20020193271Abstract: The present invention relates to bleaching, pre-soak, pre-treatment, and laundry detergent compositions comprising:Type: ApplicationFiled: May 9, 2002Publication date: December 19, 2002Inventor: Regine LaBeque
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Patent number: 6495502Abstract: A bleaching composition is provided for effective bleaching with a bleach catalyst at low temperatures. The bleaching composition comprises of a) from 0.05 microM to 50 mM of an organic substance which forms a complex with a transition metal; b) a source of active oxygen corresponding to 0.05 to 100 mM of active oxygen; and c) an effective amount of liquid carbon dioxide, preferably held at 25° C. or less.Type: GrantFiled: December 20, 2000Date of Patent: December 17, 2002Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.Inventors: 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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Patent number: 6486110Abstract: 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: GrantFiled: April 13, 2001Date of Patent: November 26, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Frank Bachmann, Josef Dannacher, Martin Studer, Beat Freiermuth, Cornelia Makowka, Peter Weingartner, Grit Richter, Gunther Schlingloff
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Publication number: 20020173440Abstract: The invention relates to an air bleaching catalyst that has been coated with a polymer that serves to promote the stability of the air bleaching catalyst. The invention also provides a method of coating the air bleaching catalyst.Type: ApplicationFiled: February 14, 2002Publication date: November 21, 2002Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.Inventors: Andrew Paul Chapple, Antonius Henricus J. Strijbosch
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Publication number: 20020169096Abstract: The invention relates to catalytically bleaching substrates, especially laundry fabrics, with atmospheric oxygen or air in the presence of an air bleaching facilitator.Type: ApplicationFiled: December 11, 2001Publication date: November 14, 2002Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.Inventors: Rene Appel, Ronald Hage, Philippus Cornelis van der Hoeven, Joachim Lienke, Richard George Smith
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Patent number: 6479451Abstract: The present invention relates to laundry detergent compositions comprising one or more hrdrophobically modified polyamines and nonionic surfactants which provide enhanced hydrophilic soil, inter alia, clay, removal benefits. The present invention also relates to methods for removing hydrophilic soil from wearing apparel.Type: GrantFiled: February 21, 2001Date of Patent: November 12, 2002Assignee: The Procter & Gamble CompanyInventor: Kenneth Nathan Price
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Patent number: 6479450Abstract: A bleaching composition is presented having a) an enzyme which produces hydrogen peroxide from atmospheric oxygen, b) a substrate for said enzyme, and c) a transition metal compound, where the enzyme is covalently bound to the transition metal compound. The bleaching composition is useful in disinfectants and laundry detergents as a bleaching component and for inhibiting the transfer of dyes.Type: GrantFiled: February 2, 2000Date of Patent: November 12, 2002Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Albrecht Weiss, Ulrich Pegelow, Beatrix Kottwitz, Marita Grothus, Maria Liphard
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Patent number: 6479447Abstract: A bleaching composition is provided for effective bleaching with a bleach catalyst at low temperatures. The bleaching composition comprises of a) from 0.05 microM to 50 mM of an organic substance which forms a complex with a transition metal; b) a source of active oxygen corresponding to 0.05 to 100 mM of active oxygen; and c) an effective amount of liquid carbon dioxide.Type: GrantFiled: December 20, 2000Date of Patent: November 12, 2002Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.Inventors: 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: 20020165110Abstract: Transition metal complexes used as bleach catalysts of the formula (1)Type: ApplicationFiled: January 17, 2002Publication date: November 7, 2002Applicant: Clariant GmbHInventors: Gerd Reinhardt, Michael Seebach, Nicole Reichardt, Laszlo I. Simandi, Tatiana M. Simandi, Gabor Besenyei
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Publication number: 20020160925Abstract: The invention relates to catalytically bleaching substrates, especially laundry fabrics, with a transition metal catalyst that bleaches tea type stains in the presence of atmospheric oxygen.Type: ApplicationFiled: February 11, 2002Publication date: October 31, 2002Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.Inventors: Ronald Hage, Maria Johanna Lagerwaard-Lier, Joachim Lienke, Cynthia Margaret Ligeon, Patricia Petersen
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Patent number: 6462008Abstract: Detergent compositions comprising photobleach delivery systems, processes for preparing them, and their methods of use, the compositions combine selected hydrophobic photobleaches, especially based on Si(IV) phthalocyanines, with selected axial ligands, with certain water-soluble polymers, nonbonded ligands, detersuve surfactants, especially certain mid-chain branched types, and non-surfactant detersive adjuncts.Type: GrantFiled: December 21, 2001Date of Patent: October 8, 2002Assignee: Case Western Reserve UniversityInventors: Rafael Ortiz, David Johnathan Kitko, Michael Eugene Burns, Stephen Wayne Heinzman, Alan David Willey, Brian Jeffreys, James Charles Theophile Roger Burckett-St. Laurent, Phillip Kyle Vinson, Trace Wendell de Guzman Trajano
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Publication number: 20020119899Abstract: 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: February 4, 2002Publication date: August 29, 2002Inventors: Frank Bachmann, Josef Dannacher, Martin Studer, Beat Freiermuth, Cornelia Makowka, Peter Weingartner, Grit Richter, Gunther Schlingloff
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Publication number: 20020119900Abstract: There is provided an enzymatic oxidation composition and process wherein an oxidisable substance is reacted with (a) a compound having the formula: 1Type: ApplicationFiled: October 24, 2001Publication date: August 29, 2002Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.Inventors: Daniel Convents, Monique Doornink, Richard George Smith, David William Thornthwaite
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Publication number: 20020091071Abstract: Laundry detergents and cleaners which, in addition to a peroxide compound, comprise a compound of the formulaType: ApplicationFiled: January 17, 2002Publication date: July 11, 2002Applicant: Clariant GmbHInventors: Claudia Fischer, Nicole Reichardt, Jorg Issberner
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Patent number: 6413926Abstract: 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: GrantFiled: April 13, 2001Date of Patent: July 2, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Frank Bachmann, Josef Dannacher, Cornelia Makowka, Gunther Schlingloff, Peter Weingartner, Grit Richter
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Patent number: 6410497Abstract: Inorganic per compounds may be activated with oxime carbonates of the formula (I), A—O—CO—OR3, a hydroximide ester of formula (II): or polymeric hydroximide esters.Type: GrantFiled: August 4, 1999Date of Patent: June 25, 2002Assignee: BASF AktiengesellschaftInventors: Elisabeth Kappes, Thomas Wehlage, Alfred Oftring, Dieter Boeckh
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Patent number: 6407045Abstract: The invention set out to improve the oxidizing and bleaching effect of inorganic peroxygen compounds in dishwashing, more particularly machine dishwashing, in terms of their storage stability. This was essentially achieved by using particulate compounds corresponding to formula R1R2R3N−CH2CN X+, in which R1, R2, and R3 independently of one another represent an alkyl, alkenyl or aryl group containing 1 to 18 carbon atoms, in addition to which the groups R2 and R3 may even be part of a heterocycle including the N atom and optionally other hetero atoms, and X is a charge-equalizing anion. Dishwashing detergents, more particularly machine dishwashing detergents, contain about 1% by weight to 10% by weight of this bleach-boosting agent.Type: GrantFiled: October 2, 2001Date of Patent: June 18, 2002Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Christian Nitsch, Horst-Dieter Speckmann, Juergen Haerer, Andreas Lietzmann, Susan P. Huestis
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Patent number: 6399557Abstract: 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: GrantFiled: April 11, 2001Date of Patent: June 4, 2002Assignee: 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: 20020058599Abstract: As activators for peroxy compounds in dishwashing agents there are used manganese complexes of formula (1) or (2) 1Type: ApplicationFiled: August 31, 2001Publication date: May 16, 2002Inventors: Menno Hazenkamp, Marie-Josee Dubs, Frank Bachmann, Gunther Schlingloff, Rachel Allemann, Josef Dannacher
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Patent number: 6387862Abstract: 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: GrantFiled: April 11, 2001Date of Patent: May 14, 2002Assignee: 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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Patent number: 6387863Abstract: The inventions is drawn to mixtures of manganese complexes and organic ligands which significantly improve the bleaching effect of hydrogen peroxide in washing liquours and prevent the reabsorption of migrating dyes in peroxide-containing washing liquors.Type: GrantFiled: September 4, 2001Date of Patent: May 14, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Menno Hazenkamp, Frank Bachmann, Cornelia Makowka, Marie-Josée Dubs, Grit Richter, Gunther Schlingloff, Josef Dannacher, Peter Weingartner
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Patent number: 6384007Abstract: 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 said enzyme, one or more compounds having the having the formula: wherein Z1 and Z2 are electron withdrawing groups, independently selected from the group consisting of optionally substituted alkyl/(hetero)aryl- -sulfone, -sulfoxide, -sulfonate, -carbonyl, -oxalyl, -amidoxalyl, -hydrazidoxalyl, -carboxyl and esters and salts thereof, -amidyl, -hydrazidyl, nitrile. The process is especially useful for removing colored stains from fabrics in a washing process.Type: GrantFiled: November 9, 2000Date of Patent: May 7, 2002Assignee: Unilever Home & Personal USA division of Conopco, Inc.Inventors: Daniel Convents, Monique Doornink, Jean Hypolites Koek, David William Thornthwaite, Nicole Zwets
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Patent number: 6380146Abstract: There is provided a bleaching detergent composition comprising one or more surfactants, a phenol oxidizing enzyme and a compound which acts as enhancer for the phenol oxidizing enzyme, said composition having an Enhancer Index as herein defined of at least 12 and prefereably in the range of 15-50.Type: GrantFiled: June 20, 2000Date of Patent: April 30, 2002Assignee: Unilever Home & Personal Care USA a division of Conopco, Inc.Inventors: Greta Johanna Breel, Daniel Convents, Willem Van Liemt, Ton Swarthoff, Robin Stefan Twisker
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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: 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: 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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Publication number: 20020032142Abstract: The present invention relates to detergent compositions, including laundry, dishwashing, and/or hard surface cleaner compositions, comprising a cyclodextrin glucanotransferase enzyme and a detergent ingredient selected from a nonionic surfactant, a protease and/or a bleaching agent. Such compositions provide excellent removal of starch-containing stains and soils and malodor control; and when formulated as laundry compositions, excellent whiteness maintenance and dingy cleaning.Type: ApplicationFiled: June 25, 2001Publication date: March 14, 2002Applicant: The Procter & Gamble CompanyInventors: Johan Smets, An Pintens
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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: 20020028757Abstract: A process of treating fabrics which comprises the steps of forming an aqueous bath comprising water, a conventional laundry detergent and a laundry detergent additive tablet and subsequently contacting said fabrics with said aqueous bath, wherein said laundry detergent additive tablet comprises an ion exchange resin. A disintegration benefit is provided to the tablet used in the process according to the present invnetion.Type: ApplicationFiled: June 7, 2001Publication date: March 7, 2002Applicant: The Procter & Gamble CompanyInventors: Andrea Esposito, Valerio Del Duca, Silvia Zanazzi
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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: 20020013246Abstract: A bleaching composition for laundry fabrics is provided, comprising:Type: ApplicationFiled: February 28, 2001Publication date: January 31, 2002Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.Inventors: Roelant Mathijs Hermant, Christiaan Lamers
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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: 20020010121Abstract: A bleaching composition for laundry fabrics is provided, comprising:Type: ApplicationFiled: February 28, 2001Publication date: January 24, 2002Applicant: 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: 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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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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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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Patent number: 6326348Abstract: Detergent composition comprising a mid-chain branched surfactant and also containing a bleaching agent, aluminosilicate, silicate, and/or detersive enzyme.Type: GrantFiled: June 27, 2000Date of Patent: December 4, 2001Assignee: The Procter & Gamble Co.Inventors: Phillip Kyle Vinson, Peter Robert Foley, Thomas Anthony Cripe, Daniel Stedman Connor, Kenneth William Willman
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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: 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: 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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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: 6241779Abstract: The invention provides a novel composition and method for removing or reducing levels of recalcitrant constituents from an effluent, such as lignin chromophores, AOX species, such as chlorinated phenols, dioxins, dibenzofurans, biphenyls, and high molecular weight material produced in the pulp and paper bleaching operations which includes using a composition comprised of (a) an amount of a source of an oxidant effective for oxidizing and thereby reducing the levels of such constituents and (b) an oxidatively stable oxidant activator having the structure wherein Y1, Y3 and Y4 each represent a bridging group having zero, one, two or three carbon containing nodes for substitution, and Y2 is a bridging group having at least one carbon containing node for substitution, each said node containing a C(R), C(R1)(R2), or a C(R)2 unit and each R substituent is the same or different from the remaining R substituents; M is a transition metal with oxidation states of I, II, III, IV, V, VI, VII or VIII orType: GrantFiled: May 4, 2000Date of Patent: June 5, 2001Assignee: Carnegie Mellon UniversityInventors: Terrence J. Collins, Colin P. Horwitz
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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: 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: 6221824Abstract: The storage stability of bleach-activating acetonitrile derivatives in solid detergent compositions was to be improved. This was essentially achieved by the use of compounded compounds corresponding to formula R1R2R3NxCH2CN X−, in which R1, R2 and R3 independently of one another represent an alkyl, alkenyl or aryl group containing 1 to 18 carbon atoms, in addition to which the groups R2 and R3 may even be part of a heterocycle including the N atom and optionally other hetero atoms, and X is a charge-equalizing anion. “Compounds” of this type are produced by drying in vacuo, for which purpose a suspension of the acetonitrile derivative and a solid carrier material is introduced into a mixer and the resulting mixture is dried with superheated vapor. Dishwashing detergents, more particularly machine dishwashing detergents, contain about 1% by weight to 10% by weight of this bleach boosting compound.Type: GrantFiled: February 25, 2000Date of Patent: April 24, 2001Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Andreas Lietzmann, Artiga Gonzalez, Stefan Hammelstein, Christian Nitsch, Horst-Dieter Speckmann
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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