With Heavy Metal Containing Catalyst Or Activator (e.g., Containing Mn, Cu, Fe, Etc.) Patents (Class 510/311)
  • Publication number: 20030017956
    Abstract: 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: Application
    Filed: June 14, 2002
    Publication date: January 23, 2003
    Inventors: Karl Matthew Preissner, Angelica Damaris Brown
  • Patent number: 6506218
    Abstract: 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: Grant
    Filed: January 17, 2002
    Date of Patent: January 14, 2003
    Assignee: Clariant GmbH
    Inventors: Claudia Fischer, Nicole Reichardt, Jörg Issberner
  • Publication number: 20030008797
    Abstract: The invention relates to catalytically bleaching substrates, especially laundry fabrics, with a bleaching composition using either air or a peroxyl source.
    Type: Application
    Filed: March 20, 2002
    Publication date: January 9, 2003
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Ronald Hage, Malcolm Philip Nicholls
  • Publication number: 20030008798
    Abstract: Bleaching activator granules comprising (A) an organic peracid precursor represented by the following general formula, (I): 1
    Type: Application
    Filed: May 20, 2002
    Publication date: January 9, 2003
    Inventors: Yoshinobu Imaizumi, Koichi Ohori
  • Publication number: 20020193271
    Abstract: The present invention relates to bleaching, pre-soak, pre-treatment, and laundry detergent compositions comprising:
    Type: Application
    Filed: May 9, 2002
    Publication date: December 19, 2002
    Inventor: Regine LaBeque
  • Patent number: 6495502
    Abstract: 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: Grant
    Filed: December 20, 2000
    Date of Patent: December 17, 2002
    Assignee: 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
  • Patent number: 6486110
    Abstract: 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: Grant
    Filed: April 13, 2001
    Date of Patent: November 26, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Frank Bachmann, Josef Dannacher, Martin Studer, Beat Freiermuth, Cornelia Makowka, Peter Weingartner, Grit Richter, Gunther Schlingloff
  • Publication number: 20020173440
    Abstract: 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: Application
    Filed: February 14, 2002
    Publication date: November 21, 2002
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Andrew Paul Chapple, Antonius Henricus J. Strijbosch
  • Publication number: 20020169096
    Abstract: The invention relates to catalytically bleaching substrates, especially laundry fabrics, with atmospheric oxygen or air in the presence of an air bleaching facilitator.
    Type: Application
    Filed: December 11, 2001
    Publication date: November 14, 2002
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Rene Appel, Ronald Hage, Philippus Cornelis van der Hoeven, Joachim Lienke, Richard George Smith
  • Patent number: 6479451
    Abstract: 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: Grant
    Filed: February 21, 2001
    Date of Patent: November 12, 2002
    Assignee: The Procter & Gamble Company
    Inventor: Kenneth Nathan Price
  • Patent number: 6479450
    Abstract: 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: Grant
    Filed: February 2, 2000
    Date of Patent: November 12, 2002
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Albrecht Weiss, Ulrich Pegelow, Beatrix Kottwitz, Marita Grothus, Maria Liphard
  • Patent number: 6479447
    Abstract: 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: Grant
    Filed: December 20, 2000
    Date of Patent: November 12, 2002
    Assignee: 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
  • Publication number: 20020165110
    Abstract: Transition metal complexes used as bleach catalysts of the formula (1)
    Type: Application
    Filed: January 17, 2002
    Publication date: November 7, 2002
    Applicant: Clariant GmbH
    Inventors: Gerd Reinhardt, Michael Seebach, Nicole Reichardt, Laszlo I. Simandi, Tatiana M. Simandi, Gabor Besenyei
  • Publication number: 20020160925
    Abstract: 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: Application
    Filed: February 11, 2002
    Publication date: October 31, 2002
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Ronald Hage, Maria Johanna Lagerwaard-Lier, Joachim Lienke, Cynthia Margaret Ligeon, Patricia Petersen
  • Patent number: 6462008
    Abstract: 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: Grant
    Filed: December 21, 2001
    Date of Patent: October 8, 2002
    Assignee: Case Western Reserve University
    Inventors: 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
  • Publication number: 20020119899
    Abstract: 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: Application
    Filed: February 4, 2002
    Publication date: August 29, 2002
    Inventors: Frank Bachmann, Josef Dannacher, Martin Studer, Beat Freiermuth, Cornelia Makowka, Peter Weingartner, Grit Richter, Gunther Schlingloff
  • Publication number: 20020119900
    Abstract: There is provided an enzymatic oxidation composition and process wherein an oxidisable substance is reacted with (a) a compound having the formula: 1
    Type: Application
    Filed: October 24, 2001
    Publication date: August 29, 2002
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Daniel Convents, Monique Doornink, Richard George Smith, David William Thornthwaite
  • Publication number: 20020091071
    Abstract: Laundry detergents and cleaners which, in addition to a peroxide compound, comprise a compound of the formula
    Type: Application
    Filed: January 17, 2002
    Publication date: July 11, 2002
    Applicant: Clariant GmbH
    Inventors: Claudia Fischer, Nicole Reichardt, Jorg Issberner
  • Patent number: 6413926
    Abstract: 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: Grant
    Filed: April 13, 2001
    Date of Patent: July 2, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Frank Bachmann, Josef Dannacher, Cornelia Makowka, Gunther Schlingloff, Peter Weingartner, Grit Richter
  • Patent number: 6410497
    Abstract: 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: Grant
    Filed: August 4, 1999
    Date of Patent: June 25, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Elisabeth Kappes, Thomas Wehlage, Alfred Oftring, Dieter Boeckh
  • Patent number: 6407045
    Abstract: 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: Grant
    Filed: October 2, 2001
    Date of Patent: June 18, 2002
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Christian Nitsch, Horst-Dieter Speckmann, Juergen Haerer, Andreas Lietzmann, Susan P. Huestis
  • Patent number: 6399557
    Abstract: 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: Grant
    Filed: April 11, 2001
    Date of Patent: June 4, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Christopher Mark Perkins, Regine Labeque, Barbara Kay Williams, James Pyott Johnston, David Johnathan Kitko, James Charles Theophile Roger Burckett-St. Laurent, Michael Eugene Burns
  • Publication number: 20020058599
    Abstract: As activators for peroxy compounds in dishwashing agents there are used manganese complexes of formula (1) or (2) 1
    Type: Application
    Filed: August 31, 2001
    Publication date: May 16, 2002
    Inventors: Menno Hazenkamp, Marie-Josee Dubs, Frank Bachmann, Gunther Schlingloff, Rachel Allemann, Josef Dannacher
  • Patent number: 6387862
    Abstract: 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: Grant
    Filed: April 11, 2001
    Date of Patent: May 14, 2002
    Assignee: The Procter & Gamble Company
    Inventors: 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
  • Patent number: 6387863
    Abstract: 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: Grant
    Filed: September 4, 2001
    Date of Patent: May 14, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Menno Hazenkamp, Frank Bachmann, Cornelia Makowka, Marie-Josée Dubs, Grit Richter, Gunther Schlingloff, Josef Dannacher, Peter Weingartner
  • Patent number: 6384007
    Abstract: 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: Grant
    Filed: November 9, 2000
    Date of Patent: May 7, 2002
    Assignee: Unilever Home & Personal USA division of Conopco, Inc.
    Inventors: Daniel Convents, Monique Doornink, Jean Hypolites Koek, David William Thornthwaite, Nicole Zwets
  • Patent number: 6380146
    Abstract: 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: Grant
    Filed: June 20, 2000
    Date of Patent: April 30, 2002
    Assignee: Unilever Home & Personal Care USA a division of Conopco, Inc.
    Inventors: Greta Johanna Breel, Daniel Convents, Willem Van Liemt, Ton Swarthoff, Robin Stefan Twisker
  • Patent number: 6365562
    Abstract: 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: Grant
    Filed: April 20, 2001
    Date of Patent: April 2, 2002
    Assignee: Clariant GmbH
    Inventors: Claudia Fischer, Nicole Reichardt, Jörg Issberner
  • Patent number: 6358902
    Abstract: 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: Grant
    Filed: October 25, 2000
    Date of Patent: March 19, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Adrian John Waynforth Angell, Les Charles Zorb
  • Patent number: 6358904
    Abstract: 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: Grant
    Filed: September 24, 1997
    Date of Patent: March 19, 2002
    Inventor: Hans-Peter Call
  • Publication number: 20020032142
    Abstract: 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: Application
    Filed: June 25, 2001
    Publication date: March 14, 2002
    Applicant: The Procter & Gamble Company
    Inventors: Johan Smets, An Pintens
  • Publication number: 20020028753
    Abstract: Laundry detergents and cleaners which, in addition to a peroxide compound, comprise a compound of the formula
    Type: Application
    Filed: April 20, 2001
    Publication date: March 7, 2002
    Applicant: Clariant GmbH
    Inventors: Claudia Fischer, Nicole Reichardt, Jorg Issberner
  • Publication number: 20020028757
    Abstract: 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: Application
    Filed: June 7, 2001
    Publication date: March 7, 2002
    Applicant: The Procter & Gamble Company
    Inventors: Andrea Esposito, Valerio Del Duca, Silvia Zanazzi
  • Publication number: 20020016277
    Abstract: Compounds of the formula
    Type: Application
    Filed: April 20, 2001
    Publication date: February 7, 2002
    Applicant: Clariant GmbH
    Inventors: Claudia Fischer, Jorg Issberner, Fritz Vogtle
  • Publication number: 20020013246
    Abstract: A bleaching composition for laundry fabrics is provided, comprising:
    Type: Application
    Filed: February 28, 2001
    Publication date: January 31, 2002
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Roelant Mathijs Hermant, Christiaan Lamers
  • Publication number: 20020013245
    Abstract: 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: Application
    Filed: June 16, 1998
    Publication date: January 31, 2002
    Inventors: GUENTER OETTER, THOMAS WEHLAGE, ELISABETH KAPPES, REINHARD MUELLER, DIETER BOECKH, MICHAEL SCHOENHERR
  • Publication number: 20020010121
    Abstract: A bleaching composition for laundry fabrics is provided, comprising:
    Type: Application
    Filed: February 28, 2001
    Publication date: January 24, 2002
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Maria Petra Van Deurzen, Ronald Hage, Simon Marinus Veerman
  • Publication number: 20020010120
    Abstract: The invention relates to catalytically bleaching substrates, especially laundry fabrics, with a bleaching composition and a peroxyl source.
    Type: Application
    Filed: February 28, 2001
    Publication date: January 24, 2002
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Ronald Hage, Daniela Nuhlen, Thomas Weyhermuller, Karl Wieghardt
  • Publication number: 20020004473
    Abstract: 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: Application
    Filed: April 11, 2001
    Publication date: January 10, 2002
    Applicant: The Procter & Gamble Company
    Inventors: 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
  • Patent number: 6326342
    Abstract: 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: Grant
    Filed: August 22, 2000
    Date of Patent: December 4, 2001
    Assignee: U.S. Borax Inc.
    Inventors: Michael J. Greenhill-Hooper, Fernando Rey-Garcia, Avelino Corma-Canos, Jose Luis Jorda-Moret
  • Patent number: 6326348
    Abstract: Detergent composition comprising a mid-chain branched surfactant and also containing a bleaching agent, aluminosilicate, silicate, and/or detersive enzyme.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: December 4, 2001
    Assignee: The Procter & Gamble Co.
    Inventors: Phillip Kyle Vinson, Peter Robert Foley, Thomas Anthony Cripe, Daniel Stedman Connor, Kenneth William Willman
  • Publication number: 20010036908
    Abstract: 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: Application
    Filed: March 29, 2001
    Publication date: November 1, 2001
    Applicant: Unilever Home & Personal Care USA, Division of Conopco Inc.
    Inventors: Andrew Hopkinson, Christopher Clarkson Jones, David Richard Mealing
  • Patent number: 6306812
    Abstract: 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: Grant
    Filed: September 7, 1999
    Date of Patent: October 23, 2001
    Assignee: Procter & Gamble Company, The
    Inventors: Christopher Mark Perkins, Regine Labeque, Barbara Kay Williams, James Pyott Johnston, David Johnathan Kitko, James Charles Theophile Roger Burckett-St. Laurent, Michael Eugene Burns
  • Patent number: 6302921
    Abstract: 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: Grant
    Filed: August 29, 2000
    Date of Patent: October 16, 2001
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Michel Gilbert Delroisse, David Andrew Jones, Richard George Smith, John Francis Wells
  • Patent number: 6245115
    Abstract: 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: Grant
    Filed: September 1, 1999
    Date of Patent: June 12, 2001
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Adrianus Cornelius Maria Appel, Ronald Hage, Gerrit Van Der Voet
  • Patent number: 6241779
    Abstract: 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 or
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: June 5, 2001
    Assignee: Carnegie Mellon University
    Inventors: Terrence J. Collins, Colin P. Horwitz
  • Patent number: 6242409
    Abstract: 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: Grant
    Filed: September 1, 1999
    Date of Patent: June 5, 2001
    Assignee: Unilever Home & Personal Care USA
    Inventors: Adrianus Cornelis Maria Appel, Ronald Hage, Gerrit van der Voet
  • Patent number: 6228127
    Abstract: 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: Grant
    Filed: April 10, 1998
    Date of Patent: May 8, 2001
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Dieter Reinehr, Georges Metzger
  • Patent number: 6221824
    Abstract: 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: Grant
    Filed: February 25, 2000
    Date of Patent: April 24, 2001
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Andreas Lietzmann, Artiga Gonzalez, Stefan Hammelstein, Christian Nitsch, Horst-Dieter Speckmann
  • Patent number: 6218351
    Abstract: 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: Grant
    Filed: September 7, 1999
    Date of Patent: April 17, 2001
    Assignee: The Procter & Gamble Compnay
    Inventors: 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