Chlorine-containing Bleach Or Oxidant Component Patents (Class 510/379)
  • Patent number: 6147043
    Abstract: In machine dishwashing using low-alkaline detergents, the protection of silver was to be guaranteed. This was achieved by using 3-amino-5-alkyl-1,2,4-triazoles and salts thereof as silver protectors in machine dishwashing detergents. In addition, the dishwashing detergents may contain bleaching agents and builders.
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: November 14, 2000
    Assignee: Henkel Kommanditgesellschaft Auf Aktien
    Inventors: Hinrich Moeller, Helmut Blum, Christian Nitsch, Juergen Haerer
  • Patent number: 6143707
    Abstract: Automatic dishwashing detergent compositions comprising blooming perfume composition containing blooming perfume ingredients selected from the group consisting of: ingredients having a boiling point of less than about 260.degree. C. and a ClogP of at least about 3, and wherein said perfume composition comprises at least 5 different blooming perfume ingredients, bleaching agent, builder and optionally, bleach catalysts. Preferred automatic dishwashing compositions further comprise amylase and/or protease enzymes.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: November 7, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Toan Trinh, Dennis Ray Bacon, Alex Haejoon Chung, Patricia Ann Blondin
  • Patent number: 6120555
    Abstract: Liquid aqueous bleaching compositions are disclosed which comprise a pH buffering means with low sensitivity to water hardness and an alkali metal hypochlorite. A method of treating fabrics with said compositions is also disclosed.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: September 19, 2000
    Assignee: The Proctor & Gamble Company
    Inventors: Stefano Scialla, Giuseppe Trigiante
  • Patent number: 6100228
    Abstract: The invention provides a bleaching gel cleaner and a method for preparing it, said cleaner comprising:a) an effective amount of a hypochlorite-generating compound;b) a ternary thickening system which comprises: (i) alkali metal soap; (ii) a hydrotrope selected from the group consisting of trialkylamine oxides, betaines and mixtures thereof; and (iii) a bleach stable solvent, each in amounts appropriate to create a gelled composition;c) a buffer/electrolyte in an amount effective to stabilize the hypochlorite; andd) the remainder as water.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 8, 2000
    Assignee: The Clorox Company
    Inventors: Brian P. Argo, Clement K. Choy, Aram Garabedian, Jr.
  • Patent number: 6068001
    Abstract: Process for stainless steel pickling consisting in placing the material to be treated in a bath kept at a temperature ranging from 30.degree. C. to 70.degree. C. and containing:a) HClb) Fe.sup.3+c) HFd) emulsifiers, wetting agents, polishing agents, acid attack inhibitors;the bath being fed continuously with:an air flow equal to at least 3 m.sup.3 /h per m.sup.3 bath min. and an oxidizer quantity adjusted to the bath redox potential to be kept at 250 mV min.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: May 30, 2000
    Assignee: Novamax ITB S.R.L.
    Inventors: Cesare Pedrazzini, Paolo Giordani
  • Patent number: 6066614
    Abstract: A cleaning composition is provided with effective cleaning performance and viscosity, said composition comprising a polycarboxylate polymer and a surfactant system containing a short chain surfactant and a long chain surfactant. The present invention further encompasses the use of a polycarboxylate polymer in a liquid cleaning composition.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: May 23, 2000
    Assignee: The Proctor & Gamble Company
    Inventors: Laura Orlandini, Marco Petri, Giuseppe Sirianni
  • Patent number: 6042744
    Abstract: The invention provides a bleaching composition of pH 8-14 which comprises an oxygen transfer agent and hypochlorite or a source thereof and a method for bleaching a stained substrate which comprises the step of treating the substrate with a bleaching composition of pH 8-14 which bleaching composition comprises an oxygen transfer agent and hypochlorite or a source thereof. Particularly preferred oxygen transfer agents are imine quaternary ammonium salts such as N-methyl-3,4-dihydroisoquinolinium salts. Where these salts are used, suitable counter-ions include halides, sulphate, methosulphate, sulphonate, p-toluene sulphonate and phosphate. Oxygen transfer agents which comprise a quaternary nitrogen atom are preferred. In the alternative, the oxygen transfer agent can be a sulphonimine.
    Type: Grant
    Filed: April 13, 1998
    Date of Patent: March 28, 2000
    Assignee: Lever Brothers Company, division of Conopco, Inc.
    Inventors: Jayne Elisabeth Nation, Katherine Mary Thompson, David William Thornthwaite
  • Patent number: 6037318
    Abstract: An improved process for the manufacture of alkaline bleaching compositions, especially liquid and/or gel compositions of high solubility and low abrasiveness, useful to the consumer, especially as products for hard surface cleaning, bleaching or disinfectancy. The products are made by a three-stage process and comprise particular chlorine and bromine bleach sources and particular aminofunctional materials such as low-impurity sulfamate.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: March 14, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Henry Cheng Na, Michael Charles Frazee, James Charles Theophile Roger Burckett St. Laurent, Kyle David Jones, Marco Petri
  • Patent number: 6034044
    Abstract: Automatic dishwashing detergent compositions comprising a mixed nonionic surfactant system comprising low cloud point and high cloud point nonionic surfactants.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: March 7, 2000
    Assignee: The Procter & Gamble Company
    Inventors: William Michael Scheper, Laura Lee Turner, Kuntal Chatterjee, Lynda Anne Speed, Graeme Duncan Cruickshank
  • Patent number: 6015782
    Abstract: Process for manufacturing bleaching compositions comprising halogen bleach, a source of bromine and an organic or inorganic derived --NH.sub.2 compound whereby improved bleaching performance is obtained and compositions obtainable by said process.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: January 18, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Marco Petri, Henry Cheng Na
  • Patent number: 5998346
    Abstract: An improved powdered non-phosphate machine dishwashing composition comprising a blend of nonionic surfactants, builders, chlorine or non-chlorine bleach, bleach activators, enzymes and copolymers of alkylene oxides adducts of allyl alcohol and acrylic acid useful in reducing spotting and filming of dishware.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: December 7, 1999
    Assignee: BASF Corporation
    Inventors: Michael C. Welch, Kenneth L. Zack, Glenis Roberts
  • Patent number: 5981457
    Abstract: The present invention relates to a concentrated liquid gel warewash detergent composition which contains about 5% to about 30% by weight of an alkali polyphosphate, about 8% to about 50% by weight of a source of alkalinity, about 0% to about 5% by weight of a surface active agent, about 0.1% to about 2% by weight of a hydrophilic crosslinkled polycarboxylate thickening agent, about 0.1% to about 2% by weight of a hydrogen bonding agent for the polycarboxylate, and about 0 to about 15% of a polyacrylate, the balance being water. The composition may also contain about 0% to about 3% by weight of a chlorine bleach. The composition is predissolved and can be accurately metered into warewash machines to clean and destain tablewares and dishwares.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: November 9, 1999
    Assignee: Kay Chemical Company
    Inventor: Fahim U. Ahmed
  • Patent number: 5958853
    Abstract: A disinfectant and cleansing composition is provided in the form of an extruded solid. The active agent in the composition is a halogen-releasing agent such as a halogenated 5,5-dialylhydantoin. An inert binder such as a fatty acid salt or a hectoritic clay is used to enable manufacture of the composition using an extrusion process. Fragrance, colorants, and other pressure-sensitive materials may be included; fragrance and colorants are preferably incorporated in encapsulated form. Methods for manufacturing the compositions are also provided, as are methods for using the compositions in sanitizing water, particularly in disinfecting and cleansing flush toilets.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: September 28, 1999
    Assignee: The Clorox Company
    Inventor: Erika Watanabe
  • Patent number: 5925181
    Abstract: Cellulose esters according to formula (I):?(C.sub.6 H.sub.7 O.sub.2)(OR).sub.x (OR').sub.y (OH).sub.3-x-y !.sub.n (I)are described, where R is hydrophobic, R' is hydrophilic and not phthalyl or trimellityl, which may be designed, by the proper selection of R, R', x, y, and n, to dissolve under mild to alkaline conditions, and not before. A coating comprising a modified ester according to formula (I) may be used for controlled-release applications, particularly for a cleaning formulation.
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: July 20, 1999
    Inventors: Phillip Michael Cook, Juanelle Little Lambert
  • Patent number: 5843240
    Abstract: Process for stainless steel pickling consisting in placing the material to be treated in a bath kept at a temperature ranging from 30.degree. C. to 70.degree. C. and containing:a) H.sub.2 SO.sub.4b) Fe.sup.3+c) HFd) emulsifiers, wetting agents, polishing agents, acid attack inhibitors;the bath being kept under agitation with:an air flow and continuously fed with a quantity of oxidizing agent adjusted to the bath redox potential to be kept at 250 mV min.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: December 1, 1998
    Assignee: Novamax ITB S.r.L.
    Inventors: Cesare Pedrazzini, Paolo Giordani
  • Patent number: 5834414
    Abstract: A novel detergent composition and product form provides for substantial chlorine stability in detergents having substantial organic surfactant concentration. The product format ensures that water contained in the formulation, contact between sensitive organic materials and the chlorine source are structurally isolated preventing undesirable chlorine surfactant interactions and instability. Particulate detergents can be packaged in any arbitrary packaging component that can maintain a dry flowable powder.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: November 10, 1998
    Assignee: Ecolab Inc.
    Inventors: Eddie D. Sowle, Darryl C. Bowling
  • Patent number: 5767055
    Abstract: An apparatus for surface cleaning is provided in which a first liquid, which includes an oxidizing agent, and a second liquid, which includes a builder or a chelating agent, are initially maintained separately. The apparatus is constructed to facilitate delivery of these two liquids such that they are combined to form an admixture during delivery to a surface to be treated. Either or both of the first and second liquids include a pH-adjusting agent, which is present in an amount such that when the liquids are so delivered, the resulting admixture is maintained at a pH sufficient for cleaning efficacy and stability of the oxidizing agent. The present invention also provides a composition produced by a process of maintaining the two above-mentioned liquids separately and forming an admixture thereof during delivery to a surface to be treated.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: June 16, 1998
    Assignee: The Clorox Company
    Inventors: Clement K. Choy, Michael H. Robbins
  • Patent number: 5763384
    Abstract: Hard-surface scouring cleansers contain surfactant; water soluble abrasive/alkalinity mixture of water soluble carbonate and bicarbonate and optional sulfate salts; preferably bleach; optional buffer and/or minors. Such compositions combine the stain and soil removal properties of a strong active chlorine bleaching agent and bleach-stable surfactant in a abrasive cleanser having desirable surface safety and superior rinsing properties.
    Type: Grant
    Filed: June 12, 1996
    Date of Patent: June 9, 1998
    Assignee: The Procter & Gamble Company
    Inventor: Raleigh Clair Ormerod, IV
  • Patent number: 5753602
    Abstract: An improved process for the compression and tabletting of solid sustained release toilet bowl cleaners comprises the addition of a small amount of an anionic surfactant which produces a suitably compressed tablet with controlled rates of dissolution for long term cleaning efficacy. The surfactant allows for the formation of more tightly compressed tablets which require less compression energy expenditures reducing the wear and tear on commercial large scale tabletting machines.
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: May 19, 1998
    Assignee: The Block Drug Company
    Inventors: Hin Cheung Hung, Ronnie Albert Carroll, Kenneth James Ward
  • Patent number: 5731276
    Abstract: The present invention provides an abrasive-free cleaning composition which includes, in aqueous solution, a bleach, a colloidal thickener, and a source of divalent ionic calcium. The composition further includes at least one surfactant which is effective to provide cleaning activity and, in association with the colloidal thickener, thickening. The composition also includes an electrolyte/buffer which is effective to promote an environment in which the thickener and the surfactant associate to provide proper thickening. The inventive cleaning composition, with its ionic calcium source, has desirable viscosity and rheological properties, and demonstrates significant viscosity stability, rheological stability, phase stability and bleach stability. The cleaning composition maintains these desirable properties under typical storage conditions as well as over extended times and at elevated temperatures.
    Type: Grant
    Filed: July 30, 1996
    Date of Patent: March 24, 1998
    Assignee: The Clorox Company
    Inventors: Brian P. Argo, Clement K. Choy
  • Patent number: 5728665
    Abstract: The present invention concerns a thickened viscoelastic cleaning formulation comprising, in aqueous solution: (a) an active cleaning compound; and (b) a viscoelastic thickening system comprising a tetradecyldialkylamine oxide and a hydrophobic organic counterion; wherein the formulation has a viscosity of at least 500 cP at 20.degree. C. The present invention is characterized as a means for reducing the characteristic "bleach odor" found in hypochlorite cleaning compositions of the prior art, particularly those which are volatilized upon dispensing. The compositions of the present invention may further be formulated to have utility as a hard surface cleaner, or as a drain opener.
    Type: Grant
    Filed: September 13, 1995
    Date of Patent: March 17, 1998
    Assignee: The Clorox Company
    Inventors: Clement Kin-Man Choy, Brian Patrick Argo
  • Patent number: 5705465
    Abstract: An automatic dishwashing detergent composition is described which comprises 0.01 to 1.0% of a fatty acid having from 12 to 22, preferably from 16 to 18, carbon atoms in the acyl radical and are preferably unsaturated; 0.1 to 2% of a carrier containing a ketone which has at least 25 carbon atoms; 0.5 to 40% of a surfactant; 0.1 to 10 weight % of a proteolytic enzyme; 1 to 30 weight % of a bleaching agent selected from the group of a peroxygen or hypohalite agent; and 1 to 75% of a builder providing a composition having a pH of less than about 11. Specifically, the detergent composition must have a weight ratio of long-chain ketone/carrier to fatty acid of 5:1 to 1:1, preferably from 4:1 to 2:1. A method of using the composition is also described.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: January 6, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Petrus Adrianus Angevaare, Alla Tartakovsky
  • Patent number: 5698506
    Abstract: A composition and method for inhibiting lead corrosion of fine tableware washed in automatic dishwashers is disclosed. The composition comprises an aluminum salt which dissolves at a rate to deliver less than 0.56 mM aluminum(III) per minute at 42.degree. C. to a wash liquor, a bleaching agent, a builder and optionally a surfactant. The composition has a pH of less than about 10 and is substantially free of silicates.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: December 16, 1997
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Petrus Andrianus Angevaare, Richard Gerald Gary
  • Patent number: 5698046
    Abstract: Automatic dishwashing detergents containing N-alkoxy or N-aryloxy polyhydroxy fatty acid amide surfactants which provide not only improved cleaning, but also improved filming and spotting performance on tableware are described. Thus, C.sub.12 -C.sub.14 N-(3-methoxypropyl) glucamide is used in automatic dishwashing compositions which, optionally, can be formulated to be free from chlorine bleach or phosphate builders. Weak builders such as citrate and perborate or percarbonate bleach can be used in the compositions, as can various detersive enzymes.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: December 16, 1997
    Assignee: The Procter & Gamble Comapny
    Inventors: James Charles Theophile Roger Burckett St. Laurent, Daniel Stedman Connor, Yi-Chang Fu, Jeffrey John Scheibel, William Michael Scheper
  • Patent number: 5663133
    Abstract: Automatic dishwashing detergent compositions comprising a diacyl peroxide particle are disclosed. The diacyl peroxide particles are premixed with dispersing agent prior to the addition of other automatic dishwashing detergent ingredients. The dispersing agent is selected from the group consisting of surfactants, dispersant polymers and mixtures thereof. The compositions are effective in removing carotenoid stains from plastics and tea stains from china under various temperature and pH conditions.
    Type: Grant
    Filed: November 6, 1995
    Date of Patent: September 2, 1997
    Assignee: The Procter & Gamble Company
    Inventor: Alan S. Goldstein
  • Patent number: 5610126
    Abstract: A lavatory cleansing block is formed of a composition comprising a mixture of (A) a surface active component comprising one or more anionic surface active agents and (B) a halogen release agent component consisting of (i) a halogen release agent selected from N-chloro-succinimide, calcium hypochlorite, chloramine T, dichlorodimethylhydantoin and bromochlorodimethylhydantoin, and, optionally, (ii) another halogen release agent, in which the halogen release component forms from 10 to 65% by weight of the composition, halogen release component (i) forms not less than 5% by weight of the composite and halogen release component (ii), when present, forms not more than 30% by weight of the block.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 11, 1997
    Assignee: Jeyes Group Limited
    Inventors: Eric D. Barford, Peter J. Clark, John Marshall, Daniel J. Jeffrey
  • Patent number: 5597789
    Abstract: Liquid or granular automatic dishwashing detergent compositions comprising silicate and low molecular weight polyacrylate copolymer exhibiting enhanced hard water filming performance.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: January 28, 1997
    Assignee: The Procter & Gamble Company
    Inventor: Eugene S. Sadlowski
  • Patent number: 5597793
    Abstract: The invention is a foam stabilizing composition which is used in conjunction with alkaline detergent products to produce a foam which is capable of clinging to vertical surfaces for extended time periods without breakdown or drying and which ultimately rinses freely with water. The foam stabilizing composition generally comprises a vinyl polymer emulsion. The invention also comprises a method of cleaning hard surfaces using the combination of the alkaline detergent product and the disclosed foam stabilizing composition.
    Type: Grant
    Filed: November 15, 1994
    Date of Patent: January 28, 1997
    Assignee: Ecolab Inc.
    Inventors: Michael Besse, Timothy Gutzmann, Roger Keppers, Richard Ruhr
  • Patent number: 5534178
    Abstract: Uniform, microscopic perforated water soluble film is herein described, and its use in packaging solid, pelletized or particulate detersire compositions containing strong acids, strong bases or a source of halogen whereby the package provides air to pass through without leakage of its contents. Also described is a method of manufacture of a sealed, water soluble, detersire package with microscopic perforations and an apparatus for said manufacture.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: July 9, 1996
    Assignee: Ecolab Inc.
    Inventors: Helen Bailly, Arthur Luedtke, Paul Pankratz, Joy Allen, Tina O. Outlaw, Lance K. Fisher, Kelvin D. Sundeen