With Heavy Metal, Nitrogen, Or Oxygen Containing Activator, Catalyst, Or Precursor Patents (Class 510/376)
  • Patent number: 6365564
    Abstract: 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: Grant
    Filed: April 15, 1999
    Date of Patent: April 2, 2002
    Assignee: The Procter & Gamble Co.
    Inventors: Kevin Lee Kott, Gregory Scot Miracle, James Charles T. R. Burckett-St. Laurent, Robert Richard Dykstra
  • 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: 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
  • 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: 6358905
    Abstract: 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: Grant
    Filed: July 7, 2000
    Date of Patent: March 19, 2002
    Assignee: U.S. Borax Inc.
    Inventors: Carmel M. Render, Michael J. Greenhill-Hooper, Clifford A. Bunton
  • Patent number: 6352562
    Abstract: 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: Grant
    Filed: November 14, 2000
    Date of Patent: March 5, 2002
    Assignee: The Procter & Gamble Co.
    Inventors: Alan David Willey, Michael Eugene Burns
  • 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: 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: 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
  • Patent number: 6340661
    Abstract: 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: Grant
    Filed: February 28, 2001
    Date of Patent: January 22, 2002
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Maria Petra van Deurzen, Ronald Hage, Simon Marinus Veerman
  • Publication number: 20020004474
    Abstract: The present invention relates to laundry detergent compositions comprising: A) from about 0.01%, preferably from about 0.
    Type: Application
    Filed: February 21, 2001
    Publication date: January 10, 2002
    Inventor: Kenneth Nathan Price
  • 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
  • Publication number: 20010053755
    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: April 13, 2001
    Publication date: December 20, 2001
    Inventors: Frank Bachmann, Josef Dannacher, Martin Studer, Beat Freiermuth, Cornelia Makowka, Peter Weingartner, Grit Richter, Gunther Schlingloff
  • Patent number: 6326341
    Abstract: 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: Grant
    Filed: April 29, 1999
    Date of Patent: December 4, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Kuntal Chatterjee, William Michael Scheper, Lynda Anne Speed, Graeme Duncan Cruickshank
  • 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
  • Publication number: 20010046953
    Abstract: N,N diacyl O-substituted imide bleach activators and compositions employing them are provided.
    Type: Application
    Filed: May 18, 2001
    Publication date: November 29, 2001
    Applicant: The Procter & Gamble Company
    Inventors: Gregory Scot Miracle, Robert Richard Dykstra
  • Publication number: 20010046951
    Abstract: 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: Application
    Filed: January 29, 2001
    Publication date: November 29, 2001
    Applicant: Kao Corporation
    Inventors: Nobuyuki Ogura, Muneo Aoyagi
  • Patent number: 6323014
    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 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: Grant
    Filed: June 20, 2000
    Date of Patent: November 27, 2001
    Assignee: Unilever Home & Personal Care division of Conopco, Inc.
    Inventors: Greta Johanna Breel, Daniel Convents, Willem Van Liemt, Ton Swarthoff, Robin Stefan Twisker
  • Publication number: 20010044402
    Abstract: A bleach catalyst system comprising in combination, a macrocyclic organic ligand of formula (I): 1
    Type: Application
    Filed: December 19, 2000
    Publication date: November 22, 2001
    Inventors: Cong-Yun Dai, Dao-Li Deng, Ronald Hage, Chang-Qing Ye, Hong Zeng
  • Publication number: 20010044401
    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: Application
    Filed: April 11, 2001
    Publication date: November 22, 2001
    Applicant: 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
  • Patent number: 6319888
    Abstract: 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: Grant
    Filed: December 13, 2000
    Date of Patent: November 20, 2001
    Assignee: Ecolab, Inc.
    Inventors: G. Jason Wei, David D. McSherry
  • Patent number: 6316400
    Abstract: 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: Grant
    Filed: June 19, 2000
    Date of Patent: November 13, 2001
    Assignee: The Procter & Gamble Co.
    Inventors: Valerio Del Duca, Stefano Giunti, Sabina Antonioli
  • 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: 6306808
    Abstract: 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: Grant
    Filed: February 15, 2001
    Date of Patent: October 23, 2001
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Menno Hazenkamp, Marie-Josée Dubs, Frank Bachmann, Gunther Schlingloff, Rachel Allemann, Josef Dannacher
  • 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
  • Publication number: 20010025019
    Abstract: A bleaching composition is provided for effective bleaching with a bleach catalyst at low temperatures.
    Type: Application
    Filed: December 20, 2000
    Publication date: September 27, 2001
    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: 20010023237
    Abstract: A bleaching composition is provided comprising
    Type: Application
    Filed: December 20, 2000
    Publication date: September 20, 2001
    Inventors: Dirk Johannes Bijl, Ronald Hage, Jan Kevelam, Jean Hypolites Koek, Dennis Stephen Murphy, Irene Erica Smit, Johannes Jacob Verhagen, Pieter Van Der Vlist
  • Publication number: 20010023238
    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: Application
    Filed: April 13, 2001
    Publication date: September 20, 2001
    Inventors: Frank Bachmann, Josef Dannacher, Cornelia Makowka, Gunther Schlingloff, Peter Weingartner, Grit Richter
  • Patent number: 6277153
    Abstract: 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: Grant
    Filed: July 13, 2000
    Date of Patent: August 21, 2001
    Assignee: Diversey Lever, Inc.
    Inventors: Eddy Petrus Van Kouwen, Frederik Jan Schepers, Rudolf Comelis Verheul, Wilhelm Ewald Smit
  • Patent number: 6274542
    Abstract: 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: Grant
    Filed: November 2, 1999
    Date of Patent: August 14, 2001
    Assignee: Solvay Interox Limited
    Inventors: Graham Carr, Alun P. James, Kelly J. Morton, John P. Sankey, Valerie Lawton
  • Publication number: 20010012825
    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, 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: Application
    Filed: December 19, 2000
    Publication date: August 9, 2001
    Inventor: Ronald Hage
  • Publication number: 20010012826
    Abstract: 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: Application
    Filed: February 26, 2001
    Publication date: August 9, 2001
    Applicant: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Thomas Gassenmeier, Juergen Millhoff, Thomas Mueller-Kirschbaum
  • Publication number: 20010010101
    Abstract: 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: Application
    Filed: December 19, 2000
    Publication date: August 2, 2001
    Inventor: Ronald Hage
  • Patent number: 6251845
    Abstract: 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: Grant
    Filed: January 10, 2000
    Date of Patent: June 26, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Ivan Maurice Alfons Jan Herbots, Alfred Busch
  • Publication number: 20010003737
    Abstract: 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: Application
    Filed: October 13, 1998
    Publication date: June 14, 2001
    Inventors: DIETER REINEHR, GEORGES METZGER
  • Patent number: 6245729
    Abstract: 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: Grant
    Filed: July 27, 1999
    Date of Patent: June 12, 2001
    Assignee: Ecolab, Inc.
    Inventors: G. Jason Wei, David D. McSherry
  • 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: 6242407
    Abstract: 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: Grant
    Filed: May 21, 1999
    Date of Patent: June 5, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Gabriella Bertacchi, Valerio Del Duca, Carlo Ricci, Roberto Scaramella
  • 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: 6235699
    Abstract: 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: Grant
    Filed: August 3, 1999
    Date of Patent: May 22, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Valerio Del Duca, Dennis Gerard O'Sullivan, Carlo Ricci, Roberto Scaramella, Stefano Giunti, Sabina Antonioli
  • Patent number: 6235697
    Abstract: 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: Grant
    Filed: May 12, 2000
    Date of Patent: May 22, 2001
    Assignee: Colgate-Palmolive Co.
    Inventors: Joseph Robert Knorr, Barbara Hepler, Mary Holmgren
  • Patent number: 6235695
    Abstract: 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: Grant
    Filed: October 1, 1998
    Date of Patent: May 22, 2001
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Helmut Blum, Peter Jeschke, Juergen Haerer, Siglinde Erpenbach, Christian Nitsch
  • 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: 6225274
    Abstract: 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: Grant
    Filed: May 26, 1999
    Date of Patent: May 1, 2001
    Assignee: Henkel Kommandigesellschaft auf Aktien
    Inventors: Christian Nitsch, Rainer Jeschke
  • Patent number: 6225276
    Abstract: 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: Grant
    Filed: August 6, 1999
    Date of Patent: May 1, 2001
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Thomas Gassenmeier, Juergen Millhoff, Thomas Mueller-Kirschbaum
  • 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
  • Patent number: 6214785
    Abstract: 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: Grant
    Filed: September 8, 1999
    Date of Patent: April 10, 2001
    Assignee: Clariant GmbH
    Inventors: Johannes Himmrich, Jürgen Cramer
  • Patent number: 6211130
    Abstract: 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: Grant
    Filed: July 23, 1998
    Date of Patent: April 3, 2001
    Assignee: Henkel Kommanditgesellschaft Auf Aktien
    Inventors: Jaume Josa Pons, Adolf Arranz Catalina
  • Patent number: 6207634
    Abstract: 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: Grant
    Filed: April 19, 2000
    Date of Patent: March 27, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Axel Meyer, Steven Jozef Louis Coosemans, Jean-Pol Boutique, James Pyott Johnston, Diane Parry, David Michael Wise
  • Patent number: 6200944
    Abstract: 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: Grant
    Filed: December 22, 1998
    Date of Patent: March 13, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Anthony Dovey, Sanjeev Sharma