The Component Is A Hypochlorite Salt Patents (Class 510/380)
  • Patent number: 6258764
    Abstract: A pink colored automatic dishwasher detergent composition is formulated as a gel-like aqueous product of exceptionally good physical stability, low bottle residue, low cup leakage, red color stability and improved cleaning performance.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: July 10, 2001
    Assignee: Colgate Palmolive Company
    Inventor: Philip Gorlin
  • Patent number: 6228824
    Abstract: A pink colored automatic dishwasher detergent composition is formulated as a gel-like aqueous product of exceptionally good physical stability, low bottle residue, low cup leakage, red color stability and improved cleaning performance. Linear viscoelasticity and pseudoplastic behavior is attributed by incorporation of cross-linked high molecular weight polyacrylic acid type thickener.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: May 8, 2001
    Assignee: Colgate-Palmolive Company
    Inventor: Philip Gorlin
  • Patent number: 6221827
    Abstract: The invention relates to new bleaching and disinfecting compositions containing—based on the composition (a) 1 to 8% by weight of alkali metal hypochlorites, (b) 0.1 to 2% by weight of alkali metal hydroxides, (c) 0.1 to 2% by weight of betaines, (d) 0.1 to 1% by weight of hydrotropes and (e) 0.05 to 1% by weight of sequestrants, with the proviso that the quantities add up to 100% by weight with water and optionally other auxiliaries and additives. The clear compositions are viscoelastic and show inter alia high stability in storage in addition to excellent washing and bleaching performance.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: April 24, 2001
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Mercedes Mendoza Cruz, Elisabet de Jorge
  • Patent number: 6211131
    Abstract: Sequestering agents for use as a whitening and fabric strength enhancer for aqueous hypochlorite bleach compositions are provided. It was found that the sequesterants when used with hypochlorite in the presence of soluble heavy metal ions, particularly iron and manganese ions, provide significantly improved whitening and fabric protection. Most preferably, the sequesterants are selected from polyacrylic acid, a polyacrylic acid derivative, a copolymer of acrylic acid or methacrylic acid and a comonomer which is maleic acid or maleic anhydride and mixtures thereof.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: April 3, 2001
    Assignee: The Clorox Company
    Inventors: Thomas W. Kaaret, William L. Smith
  • Patent number: 6207201
    Abstract: A first embodiment of the present invention is directed to an aqueous disinfectant solution comprising an alkali metal or alkaline earth metal hypochlorite, an amount of base sufficient to raise the pH of the solution to at least 12, and water. A second embodiment of the present invention is directed to a method for sterilizing medical and dental instruments and hard surfaces which comprises contacting the medical or dental instruments or hard surfaces with an aqueous disinfecting solution comprising an alkali metal or alkaline earth metal hypochlorite, an amount of a base sufficient to raise the pH of the solution to at least 12, and water, for a time sufficient to disinfect the medical or dental instruments or hard surface.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: March 27, 2001
    Assignee: Amuchina International, Inc.
    Inventor: Giuseppe Piacenza
  • Patent number: 6200941
    Abstract: Fully diluted hard surface cleaners are disclosed which are particularly effective on cleaning soap scum. The cleaners contain at least 0.45 eq/kg of a dissolved anion which reacts with calcium ion to form an insoluble salt. The cleaners also contain a particular amine oxide, or a different surfactant in conjunction with a solvent. Preferred embodiments include a bleach, which provide for a cleaner which is effective on soap scum and mold and mildew.
    Type: Grant
    Filed: September 5, 1996
    Date of Patent: March 13, 2001
    Assignee: S. C. Johnson & Son, Inc.
    Inventors: Gary M. Strandburg, Daniel H. Haigh, John M. Gardner, Kevin J. Wagers, Erin D. O'Driscoll
  • 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: 6140300
    Abstract: A low-foaming cleaning composition comprises a hypochlorite bleaching component, a hypochlorite compatible surfactant, and a capped nonionic ethoxylated surfactant, wherein said nonionic surfactant reduces the foaming due to said hypochlorite compatible surfactants.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: October 31, 2000
    Assignee: The Procter & Gamble Company
    Inventor: Giuseppe Sirianni
  • Patent number: 6136768
    Abstract: A water-dispersible effervescent drain cleaner having a composition of approximately 20-60% by weight of a mixture of metal hydroxides, 20-40% hypochlorite generator, and 10-40% effervescent materials. Lubricant, colors and fragrances may also be present. The components of this mixture are compressed into tablet, pellet, granules, or high density powder forms. The particles are of sufficient density to drop through water to the point of a clog. The effervescent materials work to break up the tablets or pellets and to agitate the mixture. The hypochlorite generator, in conjunction with the hydroxides reacts to dissolve hair. The hydroxide and hypochlorite generate heat, which will dissolve grease and soap clogs and accelerate the dissolution of hair.
    Type: Grant
    Filed: September 1, 1999
    Date of Patent: October 24, 2000
    Assignee: Chem-Link Laboratories LLC
    Inventors: Hilton G. Dawson, Robert P. Warnock, Richard A. DeSenna
  • 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: 6090770
    Abstract: The invention concerns novel aqueous bleaching agents containing--relative to the agents--between 1.0 and 10.0 wt % alkali hypochlorite, between 0.5 and 1.5 wt % alkali hydroxide, between 0.5 and 2.0 wt % silicates, between 0.01 and 1.0 wt % phosphonic acids and/or phosphonates, and between 0.01 and 1.0 wt % polyacrylic acid compounds as well as optionally other conventional additives and auxiliary materials. The agents can be formulated without turbidity and reliably protect the textiles treated therewith against encrustation and yellowing, even in the presence of water hardness and heavy metal ions.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: July 18, 2000
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Mercedes Mendoza, Jaume Josa
  • 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: 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: 6036789
    Abstract: Dilute aqueous compositions for removing soap scum consisting essentially of sodium carbonate, hypochlorite bleach, alkali metal hydroxide and a surfactant system consisting either of sodium 2-ethylhexyl sulfate and myristyldimethylamine oxide or of sodium 2-ethylhexyl sulfate alone.
    Type: Grant
    Filed: February 2, 1999
    Date of Patent: March 14, 2000
    Assignee: Reckitt & Colman Inc.
    Inventor: A. Thomas Weibel
  • Patent number: 6022840
    Abstract: Dilute aqueous compositions for removing soap scum consisting essentially of sodium carbonate, hypochlorite bleach, alkali metal hydroxide and a surfactant system consisting of sodium 2-ethylhexyl sulfate and a C.sub.8 -C.sub.10 -alkyldimethylamine oxide.
    Type: Grant
    Filed: February 2, 1999
    Date of Patent: February 8, 2000
    Assignee: Reckitt & Colman Inc.
    Inventor: A. Thomas Weibel
  • 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: 5985817
    Abstract: The inventive compositions are pourable aqueous bleach composition which contain abrasives, suitable for use in cleaning hard surfaces such as are found, for example, in lavatories and kitchens. The compositions of the invention show good shelf life, exhibit a high level of bleach stability and show good stain and soil removal, particularly from hard surfaces.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: November 16, 1999
    Assignee: Reckitt & Colman South Africa Ltd.
    Inventors: A. Thomas Weibel, Ann Marie Lynch, Rosita Gabriella Nunez, Helen B. Wang, Pranil Pooran Hagroo, Leonard February
  • 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: 5972866
    Abstract: Methods and compositions for cleaning food preparation surfaces are disclosed. The method includes applying a thickened, noncorrosive composition to the surface. The composition is formulated from a hypochlorite bleach used to reduce staining on the surface, an alkalinity source to provide a pH of from about 10 to 14, a thickening agent used to promote adhesion of the composition to the surface upon application, and a balance of water. Optionally, the composition may also contain a surfactant and a builder.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: October 26, 1999
    Assignee: Ecolab, Inc.
    Inventor: Fahim Uddin Ahmed
  • 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: 5916859
    Abstract: The present invention is a thickened viscoelastic cleaning composition comprising, in aqueous solution:(a) 0.1 to 15.0 weight percent of an active cleaning compound; and(b) 0.2 to 7.5 weight percent of a viscoelastic thickening system comprising about 0.1 to 5.0 weight percent of a hexadecyl di (C.sub.1-2 alkyl) amine oxide having an alkyl chain length of at least 80% C.sub.16, and about 0.1 to 2.5 weight percent of an organic counterion selected from aryl or C.sub.2-6 alkyl carboxylates, sulfated C.sub.2-6 alkyl or aryl alcohols and mixtures thereof; where the aryl group is derived from benzene or naphthalene and is substituted or substituted with C.sub.1-4 alkyl groups, C.sub.1-4 alkoxy groups, halogens, nitro groups or mixtures thereof;wherein the ratio of amine oxide to counterion is between 4:1 and 1:2, the system possesses a Trouton ratio of at least about 50 at a shear rate of 500-10,000 sec.sup.-1, an initial viscosity measured at 21.degree. C.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 29, 1999
    Assignee: The Clorox Company
    Inventors: Clement K. Choy, Paul F. Reboa
  • Patent number: 5914069
    Abstract: Liquid aqueous bleaching compositions are disclosed which comprise hypochlorite and a specific complexing agent or mixtures thereof selected from the group consisting of polycarboxylic acid derivatives of pyridine or the salts thereof. The compositions have a pH from 11-14 and preferably further comprise a calcium/magnesium precipitation system. The complexing agent counteracts the adverse affect which certain metal ions have on fabric strength and fabric color when hypochlorite bleaches are used in the presence of said ions.
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: June 22, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Francesco Agostini, Giuseppe Caire
  • Patent number: 5885954
    Abstract: The present invention is a powdered stain remover formulation which when mixed with water exhibits bleaching and stain discoloration properties together with the required detergency, and also exhibits mildewcide and bacteriocidal properties. The formulation includes calcium hypochlorite; a surfactant to promote detergency by emulsification, such as sodium dodecylbenzene sulfonate and a polyacrylic acid salt, such as sodium polyacrylate, to further promote cleaning by chelation. The stain remover formulation is applied to the stained surface by spraying, rolling or brushing. In this manner, water stains, tobacco, soot, mold, mildew and other stains are readily removed from the desired surface, such as sprayed textured walls and ceilings, tiles, masonry, fiberglass and plastic furniture.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: March 23, 1999
    Assignee: TPC Enterprise, Inc.
    Inventor: Peter Chicarielli
  • 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: 5827810
    Abstract: The invention provides a phase stable, thickened aqueous abrasive cleanser and a method for preparing it, said cleanser comprising:a) an effective amount of a cross-linked polyacrylate;b) an effective amount of at least one bleach-stable surfactant;c) an effective amount of a low salt, high purity hypochlorite;d) an effective amount of a pH-adjusting agent;e) an effective amount of abrasive; andf) the remainder as water.
    Type: Grant
    Filed: June 24, 1996
    Date of Patent: October 27, 1998
    Assignee: The Clorox Company
    Inventors: Kevin J. Brodbeck, Aram Garabedian, Jr., Brian P. Argo, Amy M. Penticoff, Clement K. Choy
  • Patent number: 5821214
    Abstract: A hard surface scouring cleaner composition comprises, by weight, (a) from 0.5 to 10% of soft abrasive particles, (b) from 0.5 to 2.5% of a chlorine-containing bleach, (c) from 0.2 to 3.0% of a thickening system comprising from 0.2 to 3.0%, based on the weight of the composition, of a cross-linked polyacrylate resin having a molecular weight in the range of 1,000,000 to 10,000,000 and from 0 to 2.5% of a synthetic smectite clay, (d) from 0.25 to 3.0% of a bleach-stable surfactant system comprising mainly anionic surfactants, (e) from 0 to 3.0% of an electrolyte selected from the group comprising sodium or potassium carbonates or silicates, and (f) sufficient amount of sodium or potassium hydroxide to provide a pH in the range of 11.5 to 13.5. These compositions have an apparent viscosity as measured on a Brookfield RVTDV-II with a #6 spindle at 50 rpm of from 0.5 to 7 Kcps and at 1 rpm of from 10 to 150 Kcps. The abrasive particles are preferably organic particles such as polyethylene or polypropylene.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: October 13, 1998
    Assignee: Reckitt & Colman Inc.
    Inventor: A. Thomas Weibel
  • Patent number: 5804545
    Abstract: Improved alkaline chlorinated concentrate compositions are provided which exhibit reduced chlorine loss over extended storage periods and which, when diluted, yield high foaming chlorinated use solutions. The concentrate compositions of the invention include from about 0.5-8% by weight alkali metal hypochlorite, from about 1.0-20% by weight of alkali metal hydroxide, and at least about 3% by weight of a surfactant system including respective amounts of a chlorine-stable trialkylamine oxide and a saturated C.sub.6 -C.sub.12 fatty acid soap, with an amine oxide:fatty acid soap weight ratio of from about 90:10 to about 25:75. The pH of the concentrates exceeds 12.5.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: September 8, 1998
    Assignee: West Argo, Inc.
    Inventors: Thomas C. Hemling, Cynthia L. Palmer
  • Patent number: 5780412
    Abstract: A one-step cleaning and water repellent treatment is provided. An alkaline-stable cleaning solution is mixed with an aqueous solution of alkali metal organosiliconates and applied to porous inorganic surfaces as a one-step cleaning and water repellent treatment. The mixture has been found to be stable and compatible. The one-step cleaning and water repellent treatment functions to simultaneously clean and protect porous inorganic surfaces and, thus, reduces the cost and time necessary to clean and protect such a surface.
    Type: Grant
    Filed: August 9, 1995
    Date of Patent: July 14, 1998
    Assignee: The Sherwin-Williams Company
    Inventors: Victoria D. Scarborough, Leonard R. Clark
  • Patent number: 5773402
    Abstract: Hypochlorite-comprising cleaning compositions which have improved mildness to the skin which comprise a combination of an amine-oxide and an alkyl sulfate surfactant. The hypochlorite-containing compositions also contain a fatty acid, and may contain additional ingredients including additional detersive surfactants. The compositions preferably have a pH of at least about 12.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: June 30, 1998
    Inventor: Anna Lucia D'Orazio
  • 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: 5712234
    Abstract: Graffiti removers particularly useful for removing permanent ink from painted surfaces are disclosed. The graffiti removers include a dye solvent (a pyrrolidone or a lactone), a dye non-solvent (a glycol ether ester or a glycol diether), and a dye bleaching agent (an oxidizing agent, reducing agent, or base). The dye bleaching agent is the key to eliminating the problem of "ghosting" that is observed when conventional graffiti removers are used to remove permanent marker ink graffiti.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: January 27, 1998
    Assignee: Arco Chemical Technology, L.P.
    Inventor: Daniel B. Pourreau
  • 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: 5705467
    Abstract: Aqueous cleaning compositions and methods of use are disclosed with a thickening agent including an alkyl ether sulfate surfactant forming about 0.1 to about 10% by wt. of the composition, about 0.1-5.0% by wt. of a cothickening surfactant comprising an alkali metal fatty acid sulfate and/or an alkoxylated alkylphenol sulfate salt, a solvent selected from the class consisting of terpene derivatives including a functional group and tertiary alcohols forming about 0.01 to about 10% by wt. of the composition and an electrolyte component in an amount effective for enhancing thickening effects of the alkyl ether sulfate surfactant and solvent. The electrolyte component preferably includes an alkali metal hypochlorite, more preferably at least one additional multivalent electrolyte, and most preferably sodium carbonate. With the electrolyte component including a hypochlorite, additional electrolytes and the solvent are selected to be bleach stable, the solvent also preferably being a fragrance for the composition.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: January 6, 1998
    Inventor: Clement K. Choy
  • 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: 5688756
    Abstract: The invention provides a gelled hypochlorite-based cleaner in which stability is achieved by reducing or minimizing the ionic strength of the cleaner, comprising:(a) a cross-linked polyacrylate polymer;(b) an amount of an bleach-stable surfactant sufficient, in combination with said polyacrylate polymer, to result in a gel;(c) an effective amount of a source of hypochlorite, which has an ionic strength below about 5M; and(d) the balance, water.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: November 18, 1997
    Assignee: The Clorox Company
    Inventors: Aram Garabedian, Jr., Clement K. Choy
  • 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