The Bleach Or Oxidant Component Contains Peroxy Patents (Class 510/375)
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Patent number: 6176937Abstract: Aqueous acidic solutions of hydrogen peroxide used for metal surface treatments suffer from an increased decomposition rate of the hydrogen peroxide, caused by the dissolved metals such as iron, copper or titanium. A method is provided wherein stabilization can be achieved by employing a combination of a) a hydroxybenzoic acid, preferably p-hydroxybenzoic acid; b) a hydrotropic sulphonic acid, preferably p-toluene sulphonic acid; and c) a hydrophobic alkaryl sulphonic acid, preferably dodecylbenzene sulphonic acid.Type: GrantFiled: March 20, 2000Date of Patent: January 23, 2001Assignee: Solvay Interox LimitedInventors: Sarah J. Colgan, Neil J. Sanders, Colin F. McDonogh
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Patent number: 6169065Abstract: There is provided a process for enhancing the activity of an oxidoreductase, comprising adding to the enzyme, as an enhancer for the activity of said enzyme, a compound having the formula: wherein X represents (—O—) or (—S—) and R1, R2 and R3 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, whereby: the carbamoyl, sulfamoyl and amino groups may be unsubstituted or substituted once or twice with hydroxy, C1-C6-alkyl, C1-C6-alkoxy, in which C1-C6-group may be saturated or unsaturated, branched or unbranched and may be substituted once or twice with halogen, nitroso, hydroxy, formyl, carboxy, and esters and salts thereof, carbamoyl, sulfo, and esters and salts hereof, sulfamoyl; and the phenyl group may be substituted with once or twice with halogen, nitrType: GrantFiled: August 27, 1998Date of Patent: January 2, 2001Assignee: Lever Brothers Company division of Conopco CompanyInventors: Willem Antheunisse, Ronald Hage, Jiri Hora, Ton Swarthoff, Robin Stefan Twisker
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Patent number: 6165963Abstract: A detergent bleaching composition is provided comprising a compound inclug a specified pentadentate nitrogen-containing ligand. The compound can activate hydrogen peroxide or peroxyacids and provides favourable stain removal properties, particularly in the presence or iron, manganese or copper ions. In addition, an improved stability in alkaline aqueous environment has been obtained, in particular at the peroxy compound concentrations generally present in the fabric washing liquor.Type: GrantFiled: November 3, 1999Date of Patent: December 26, 2000Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.Inventors: Michel Gilbert Delroisse, Bernard Lucas Feringa, Ronald Hage, Roelant Mathijs Hermant, Robertus Everardus Kalmeijer, Jean Hypolites Koek, Christiaan Lamers, Minze Theunis Rispens, Stephen William Russell, Ronaldus Theodorus Vliet, Jane Whittaker
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Patent number: 6165957Abstract: A method of preparing an environmentally safe composition free of chlorinated solvents which is non-flammable, fully biodegradable, and low odor and the use of such composition for the removal of various coatings from metal substrates. The composition comprises a water-based mixture of one or more high boiling, high flash aromatic solvents (benzyl alcohol, benzyl ether, 1-phenoxy-2-propanol), a peroxide generating agent (hydrogen peroxide), and a hydroxycarboxylic acid (glycolic acid). It can be prepared as a liquid and used as such for immersion/dipping operations or as a thick paste "cling-type" material when optimal application requires a thin film. These can be applied by spraying or brushing.Type: GrantFiled: June 21, 1999Date of Patent: December 26, 2000Assignee: Napier International Technologies Inc.Inventor: Sergio Vitomir
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Patent number: 6162259Abstract: Detergent compositions comprising an amino tricarboxylic acid with a rapid rate of dissolution in a washing liquor exhibit a reduced tendency to leave calcium carbonate, lime soap and other deposits on substrates being cleaned. Dishwashing and laundry compositions comprising percarbonate bleach and methyl glycine diacetic acid are provided.Type: GrantFiled: May 6, 1999Date of Patent: December 19, 2000Assignee: The Procter & Gamble CompanyInventor: Fiona Susan Williams (nee Mac Beath)
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Patent number: 6159919Abstract: The bleaching detergent composition in a form of granules or powders containing an organic peracid precursor which produces an organic peracid upon reaction with hydrogen peroxide in water, the organic peracid having an alkyl group with 7 to 19 carbon atoms, and a hydrogen peroxide releasing material, wherein the bleaching detergent composition comprises the following components a) to c): a) one or more surfactants; b) one or more crystalline alkali metal silicates; and c) one or more agents for capturing metal ions other than the crystalline alkali metal silicates b), wherein a total amount of the above a), b), and c) components in the bleaching detergent composition occupies from 70 to 99% by weight, and wherein the weight ratio of component b) to component a) is b/a=90/10 to 45/55, and the weight ratio of component b) to component c) is b/c=7/93 to 75/25, and wherein the weight ratio of the organic peracid precursor to nonionic surfactants used as component a) is from 10/90 to 70/30.Type: GrantFiled: April 19, 1996Date of Patent: December 12, 2000Assignee: Kao CorporationInventors: Shu Yamaguchi, Nobuyosi Yamaguchi, Muneo Aoyagi, Noriaki Ushio, Shigeru Tamura, Masaki Tsumadori
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Patent number: 6159922Abstract: Bleach compositions comprising a percarbonate bleach and an amino tricarboxylic acid exhibit a reduced tendency to deposit calcium carbonate insolubles on substrates being bleached. Laundry compositions comprising percarbonate bleach and methyl glycine diacetic acid are provided.Type: GrantFiled: March 24, 1999Date of Patent: December 12, 2000Assignee: The Procter & Gamble CompanyInventor: Fiona Susan (Mac Beath) Williams
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Patent number: 6156718Abstract: A process for making a detergent composition comprises the steps of: (i) mixing together at least two non-surfactant additives to form a premix; (ii) spraying all of the nonionic surfactant on to the premix to form a first intermediate particle; (iii) subsequently mixing the first intermediate particle with a second intermediate particle, wherein the second intermediate particle comprises anionic surfactant.Type: GrantFiled: January 4, 1999Date of Patent: December 5, 2000Assignee: The Procter & Gamble CompanyInventors: Scott John Donoghue, Marcel Karel Nelis Liplijn, Carole Patricia Denise Wilkinson
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Patent number: 6143707Abstract: 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: GrantFiled: February 18, 1998Date of Patent: November 7, 2000Assignee: The Procter & Gamble CompanyInventors: Toan Trinh, Dennis Ray Bacon, Alex Haejoon Chung, Patricia Ann Blondin
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Patent number: 6143088Abstract: A composition for decontamination of materials soiled by toxic agents, pacularly a peracid-based composition for effective decontamination of materials soiled by toxic agents, such as organophosphates and organosulfur compounds. The composition further includes a cationic surfactant.Type: GrantFiled: February 26, 1998Date of Patent: November 7, 2000Assignee: Etat Francais represented by the Delegue General pour l ' ArmementInventors: Claude Lion, Claude Charvy, Gerard Delmas, Gilbert Magnaud
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Patent number: 6140299Abstract: A cleaning agent characterized in that it is essentially free from tensides and that it is mainly composed of one or more alkali percarbonates or alkali earth metal percarbonates. The agent is preferably made up in the form of a tablet for an aqueous solution, and is principally composed of percarbonate in the form of sodium percarbonate.Type: GrantFiled: September 21, 1999Date of Patent: October 31, 2000Inventor: Jan-Olof Eriksson
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Patent number: 6132521Abstract: A method of cleaning elemental copper, cobalt, or nickel from the surface of equipment hardware without corroding or damaging the equipment parts and surfaces in the event of wafer breakage and non-wafer breakage is described. A solution includes an alkyldione peroxide, a stabilizing agent, and alcohols is used to oxidize the metal and form soluble complexes which are removed by the cleaning solution. Also, a alkyldione peroxide solution for cleaning elemental copper, cobalt, or nickel from the surface of equipment hardware in the event of wafer breakage and non-wafer breakage is provided.Type: GrantFiled: December 20, 1999Date of Patent: October 17, 2000Assignee: Chartered Semiconductor Manufacturing Ltd.Inventors: Subhash Gupta, Simon Chooi, Mei Sheng Zhou, Paul Ho
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Patent number: 6117358Abstract: A rapid bleaching process for cellulosic materials such as cotton and cotton blends. The bleaching liquor includes a mixture of hydrogen peroxide, potassium hydroxide and a stabilizer combined with controlled time and temperature to produce a rapid bleach in about 10 minutes or less. The resulting textile goods are soft, absorbent, mote-free with a Hunter Scale Whiteness Value of greater than about 110 and less than about 0.65% extractable solids.Type: GrantFiled: June 14, 1999Date of Patent: September 12, 2000Assignee: Surry Chemicals, Inc.Inventor: Sherman H. Sheppard
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Patent number: 6113805Abstract: Sodium percarbonate particles stabilized against loss of active oxygen in detergents, bleaches and cleaning agents by the application of a two-layer coating applied by means of a fluidized bed spray process, the inner layer including sodium percarbonate and the outer layer including sodium sulphate.Type: GrantFiled: April 24, 1998Date of Patent: September 5, 2000Assignee: Degussa-Huls AktiengesellschaftInventors: Rudiger Schutte, Ivan Pelgrims, Lothar Kaiser, Martin Bewersdorf
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Patent number: 6106774Abstract: Disclosed are ready to use aqueous cleaning and disinfecting composition which includes the following constituents by weight:0.1-20%wt. of a C.sub.1 -C.sub.6 monohydric alcohol;1.0-10%wt. of a glycol ether, or butoxypropanol or propoxypropanol;0.1-12%wt. of a detersive surfactant particularly those selected from anionic, cationic, nonionic and amphoteric surfactants;0.1-10%wt. of hydrogen peroxide;0.1-7%wt. of an acid;to 100%wt. water;wherein the said composition is at an acidic pH. The composition may include minor amounts of further conventional additives.Methods of cleaning and disinfecting surfaces are also disclosed.Type: GrantFiled: January 8, 1999Date of Patent: August 22, 2000Assignee: Reckitt Benckiser Inc.Inventors: Michael Vincent Monticello, George Robert Mayerhauser
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Patent number: 6096097Abstract: Raw native fibers and textile products therefrom can be simultaneously washed and bleached in one liquor if the liquor has added to it a combination product ofa) one or more bleach stabilizers,b) one or more surfactants from the group of the nonionic, amphoteric and cationic surfactants,c) optionally one or more dispersants andd) optionally further components.Type: GrantFiled: March 1, 1999Date of Patent: August 1, 2000Assignee: Bayer AktiengesellschaftInventors: Ferdinand Kummeler, Josef Pfeiffer, Michael Pirkotsch, Torsten Groth, Winfried Joentgen
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Patent number: 6087313Abstract: Soaking compositions are disclosed which comprise oxygen bleach and a sorbitan ester in combination with a highly alkoxylated nonionic surfactant. The granular compositions are combined with water to form soaking liquors. The invention is particularly effective in removing particulate soils such as silt and clay from fabrics as well as enzymatic stains and/or bleachable stains.Type: GrantFiled: August 25, 1999Date of Patent: July 11, 2000Assignee: The Procter & Gamble CompanyInventors: Gabriella Ardia, Stefano Scialla
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Patent number: 6080710Abstract: A process for making a coated bleach component which may be incorporated into a detergent composition comprising hydrogen peroxide solution. The process includes the steps of dispersing the bleach component in a continuous liquid phase to form discrete islands of dispersed phase and subsequently forming a polymeric coating at the interface between the dispersed phase and the continuous phase. The coating formed is resistant to hydrogen peroxide solution and is removable when the liquid continuous phase is diluted with aqueous wash liquor. In this way particulate material which reacts with hydrogen peroxide can be incorporated into an aqueous detergent liquid which contains dissolved hydrogen peroxide, whilst maintaining stability.Type: GrantFiled: May 3, 1996Date of Patent: June 27, 2000Assignee: Warwick International Group LimitedInventors: John David Withenshaw, Mark Alexander France
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Patent number: 6080715Abstract: Granular compositions comprising .di-elect cons.-phthalimido peroxyhexanoic acid (PAP), a N-oxide of a tertiary amine surfactant and an organic acid with PK.sub.a lower than 3.5 and soluble in water at most for 1% by weight at a temperature of 20.degree. C.Type: GrantFiled: January 2, 1998Date of Patent: June 27, 2000Assignee: Ausimont S.p.A.Inventors: Ugo Piero Bianchi, Claudio Cavallotti, Claudio Troglia
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Patent number: 6068001Abstract: 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: GrantFiled: October 17, 1996Date of Patent: May 30, 2000Assignee: Novamax ITB S.R.L.Inventors: Cesare Pedrazzini, Paolo Giordani
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Patent number: 6066611Abstract: The invention herein provides bleaching compositions comprising a protease enzyme which is a carbonyl hydrolase variant having an amino acid sequence not found in nature, which is derived by replacement of a plurality of amino acid residues of a precursor carbonyl hydrolase with different amino acids, wherein said plurality of amino acid residues replaced in the precursor enzyme correspond to position +76 in combination with one or more of the following residues: +99, +101, +103, +104, +107, +123, +27, +105, +109, +126, +128, +135, +156, +166, +195, +197, +204, +206, +210, +216, +217, +218, +222, +260, +265, and/or +274, where the numbered positions corresponds to naturally-occurring subtilisin from Bacillus amyloliquefaciens or to equivalent amino acid residues in other carbonyl hydrolases or subtilisins (such as Bacillus lentus subtilisin) and a bleaching agent.Type: GrantFiled: May 1, 1997Date of Patent: May 23, 2000Assignee: The Procter & Gamble CompanyInventors: Chanchal Kumar Ghosh, Michael Eugene Burns, David Neil DiGiulio, Edward Eugene Getty, Richard Timothy Hartshorn, Alan David Willey, Philip F. Brode, Bobby L. Barnett, Donn N. Rubingh
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Patent number: 6043207Abstract: The present invention discloses an alkaline cleaning composition for cleaning heavily soiled metal surfaces such as food fryers, baking pans, high temperature pasteurizers, and beer kettles, ceramic surfaces such as restaurant grade ceramic china plates and platters, and plastic surfaces. The cleaning composition is noncaustic and includes a peroxygen compound, a chelate, and a metasilicate and/or sesquisilicate. A preferred cleaning composition further includes a surfactant and hydrated builder.Type: GrantFiled: August 3, 1998Date of Patent: March 28, 2000Assignee: Charvid Limited Liability Co.Inventor: Charles Bullick Talley
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Patent number: 6034048Abstract: The present invention discloses an alkaline cleaning composition for cleaning heavily soiled metal surfaces such as food fryers, baking pans, high temperature pasteurizers, and beer kettles, ceramic surfaces such as restaurant grade ceramic china plates and platters, and plastic surfaces. The cleaning composition is noncaustic and includes a peroxygen compound, a chelate, and an alkali salt in both hydrated and anhydrous forms. A preferred cleaning composition further includes a surfactant.Type: GrantFiled: August 4, 1998Date of Patent: March 7, 2000Assignee: Charvid Limited Liability Co.Inventor: Charles Bullick Talley
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Patent number: 6017867Abstract: A granular detergent composition comprising an alkali metal percarbonate, characterized in that percarbonate has a mean particle size of from 250 to 900 micrometers, and that said compositions comprise a hydrophobic material, selected from silica, talc, zeolite DAY and hydrotalcit, in a weight ratio of alkali metal percarbonate to a hydrophobic material, of from 4:1 to 40:1, preferably 7:1 to 20:1. Both laundry detergent compositions including laundry additives and automatic dishwashing compositions are encompassed by the term "detergent composition" herein. Making processes thereof are also described.Type: GrantFiled: June 5, 1998Date of Patent: January 25, 2000Assignee: The Procter & Gamble CompanyInventors: Gerard Marcel Baillely, Paul Amaat Raymond G. France, Carole Patricia D. Wilinson
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Patent number: 6010993Abstract: Disinfecting compositions comprising a peroxygen bleach, glutaraldehyde, an antimicrobial essential oil and an amphoteric surfactant, preferably useful in combination with an amine oxide surfactant. The compositions are especially for cleaning and disinfecting hard surfaces.Type: GrantFiled: July 13, 1998Date of Patent: January 4, 2000Assignee: The Procter & Gamble CompanyInventors: Nicoletta Romano, Marina Trani, Giovanni Minervini
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Patent number: 6008171Abstract: A denture cleansing composition comprising an inorganic persalt bleaching agent, an effervescence generator and an aminoalkysilicone. The composition provides improved antiplaque, cleasing and antibacterial activity together with excellent physical and in-use performance characteristics.Type: GrantFiled: August 21, 1997Date of Patent: December 28, 1999Assignee: The Procter & Gamble CompanyInventors: Iain Allan Hughes, Elizabeth Mary Ryan, Christopher David White
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Patent number: 5972040Abstract: A granular detergent composition comprising an alkali metal percarbonate and an amylase enzyme, characterized in that said composition contains an amylase in a weight ratio of percarbonate to amylase of 1:2 to 300:1, preferably 1:2 to 60:1, more preferably 20:1 to 40:1. Both laundry detergent compositions including laundry additives and automatic dishwashing compositions are encompassed by the term "detergent composition" herein. Methods of treatment of specific stains are also encompassed.Type: GrantFiled: May 24, 1996Date of Patent: October 26, 1999Assignee: The Procter & Gamble CompanyInventors: Michael Alan John Moss, Christiaan Arthur Thoen
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Patent number: 5968885Abstract: The present invention relates to liquid compositions comprising a peroxygen bleach, a liquid hydrophobic bleach activator and a polyhydroxy fatty acid amide surfactant according to the formula R.sup.2 --C(O)--N(R.sup.1)-Z, wherein R.sup.1 is H, or C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 hydrocarbyl, 2-hydroxy ethyl, 2-hydroxy propyl or a mixture thereof, R.sup.2 is C.sub.5 -C.sub.31 hydrocarbyl, and Z is a polyhydroxycarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative thereof, said compositions being formulated either as an emulsion or a microemulsion. The present invention further encompasses a process for pretreating soiled fabrics with a liquid composition comprising such a polyhydroxy fatty acid amide surfactant, whereby improved stain removal performance is delivered.Type: GrantFiled: December 18, 1997Date of Patent: October 19, 1999Assignee: Procter & Gamble Co.Inventors: Valerio Del Duca, Stefano Scialla, Raffaele Scoccianti
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Patent number: 5965510Abstract: This invention relates to activation of enzymes. More specifically, the invention relates to agents capable of enhancing the activity of peroxidases or peroxidase acting compounds. The invention also relates to methods of oxidizing a substrate with a source of hydrogen peroxide in the presence of a peroxidase enzyme or a peroxidase acting compound, and an enhancing agent. More specifically, the invention relates to a method of bleaching of dye in solutions, to a method of inhibiting the transfer of a textile dye from a dyed fabric to another fabric when said fabrics are washed together in a wash liquor, to a method of bleaching of lignin-containing material, in particular bleaching of pulp for paper production, to a method of treatment of waste water from pulp manufacturing, and to a method of enzymatic polymerization and/or modification of lignin or lignin containing material.Type: GrantFiled: May 12, 1995Date of Patent: October 12, 1999Assignee: Novo Nordisk A/SInventors: Palle Schneider, S.o slashed.ren Ebdrup
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Patent number: 5962386Abstract: Automatic dishwashing detergent compositions comprising certain cobalt catalysts are provided. More specifically, the invention relates to automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits (especially tea stain removal) through the selection of cobalt bleach catalyst having the formula:?Co(NH.sub.3).sub.n (M).sub.m (B).sub.b !T.sub.ywherein cobalt is in the +3 oxidation state; n is 4 or 5 (preferably 5); M is one or more ligands coordinated to the cobalt by one site; m is 0, 1 or 2 (preferably 1); B is a ligand coordinated to the cobalt by two sites; b is 0 or 1 (preferably 0), and when b=0, then m+n=6, and when b=1, then m=0 and n=4; and T is one or more appropriately selected counteranions present in a number y, where y is an integer to obtain a charge-balanced salt (preferably y is 1 to 3; most preferably 2 when T is a -1 charged anion); and wherein further said catalyst has a base hydrolysis rate constant of less than 0.23M.sup.-1 s.sup.-1 (25.degree. C.).Type: GrantFiled: November 5, 1997Date of Patent: October 5, 1999Assignee: The Procter & Gamble CompanyInventors: William Michael Scheper, Christopher Mark Perkins
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Patent number: 5962391Abstract: The present invention relates to a bleach or disinfecting aqueous cleaning composition which is useful for the removal of grease or tar without any mechanical action. In particular, the instant compositions are derived from three liquid phases which merge together at the tricritical point to form one continuum forming the aqueous cleaning composition, wherein the three phases incorporate at least a polar solvent, a non-polar solvent or weakly polar solvent and a water soluble or water low molecular weight water dispersible amphiphile and the composition contains a bleach and biostatic agent.Type: GrantFiled: August 4, 1997Date of Patent: October 5, 1999Assignee: Colgate-Palmolive Co.Inventor: Louis Oldenhove
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Patent number: 5945392Abstract: Nonaqueous detergent compositions which are in the form of a liquid, paste or gel, wherein the compositions comprise a divalent and/or trivalent metal salt bleach activator are disclosed.Type: GrantFiled: December 22, 1997Date of Patent: August 31, 1999Assignee: Procter & Gamble CompanyInventors: Jean-Pol Boutique, Michael Eugene Burns, James Pyott Johnston, Axel Meyer
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Patent number: 5942480Abstract: Disclosed herein is a synergistic cleaning and disinfecting composition for use in decontaminating biofilm-coated surfaces like fresh water lines providing water supply to dental instruments, these lines being susceptible to contamination by microorganisms and being susceptible to the formation of biofilm coatings on their inner walls, the composition comprising an effective amount of a detergent, an effective amount of a denaturing agent attacking the extracellular matrix formed between microorganisms and between microorganisms and the inner walls of these water lines and an effective amount of a bactericide for destroying the microorganisms.Type: GrantFiled: June 27, 1997Date of Patent: August 24, 1999Assignee: Universite de MontrealInventors: Andre Prevost, Jean Barbeau, Ludger Cote, Robert Charland, Esther Faucher
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Patent number: 5939379Abstract: The present invention relates to new compounds which are useful as ultraviolet absorbing agents (UVAs) and as fluorescent whitening agents (FWAs), and to a method of improving the sun protection factor (SPF) of textile fibre material, especially cotton, polyamide and wool, treated with the new compounds.Type: GrantFiled: June 2, 1997Date of Patent: August 17, 1999Assignee: Ciba Specialty Chemicals CorporationInventors: Claude Eckhardt, Dieter Reinehr, Georges Metzger, Hanspeter Sauter
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Patent number: 5932532Abstract: Bleaching and cleaning compositions comprising a bleaching compound, one or more bleach activators, and protease enzymes are provided. Thus, laundry detergent compositions which comprise protease, perborate or percarbonate and activators such as benzoyl caprolactain exhibit improved dingy clean-up performance.Type: GrantFiled: September 16, 1997Date of Patent: August 3, 1999Assignee: Procter & Gamble CompanyInventors: Chanchal Kumar Ghosh, Gayle Marie Frankenbach, Catherine Michelle Quinn
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Patent number: 5929015Abstract: The invention relates to particles having a core comprising a peroxy compound with capability of releasing hydrogen peroxide or peroxy acids in aqueous solutions. The particles have a coating containing a silicate, and a water soluble magnesium salt, and the core and/or the coating contains an aliphatic organic compound or a salt thereof as a chelating agent. The invention also relates to preparation and use of the particles as well as a composition containing such particles.Type: GrantFiled: March 18, 1997Date of Patent: July 27, 1999Assignee: EKA Chemicals ABInventors: Hans Lagnemo, Monica Jigstam
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Patent number: 5922083Abstract: Soaking compositions are disclosed which comprise a bleach, a builder; an anionic surfactant, a proteolytic enzyme; and a stability enhanced amylase enzyme. A process of soaking fabrics is also disclosed, wherein said fabrics are immersed in a soaking liquor comprising water and an effective amount of the composition above.Type: GrantFiled: October 3, 1997Date of Patent: July 13, 1999Assignee: Procter & Gamble CompanyInventors: Lamberto Biscarini, Marina Trani
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Patent number: 5916481Abstract: Low hue photobleaching compositions comprising organosilicon(IV) phthalocyanine and naphthalocyanines having Q-band absorption maxima at wavelengths greater than 660 nm and increased triplet state yields whereby production of singlet oxygen is increased. Use of Si.sup.4+ phthalocyanine and naphthalocyanines compounds in photobleaching compositions allows for formulation of low hue laundry compositions, bleach compositions, and hard surface cleaners.Type: GrantFiled: June 18, 1996Date of Patent: June 29, 1999Assignee: The Procter & Gamble CompanyInventor: Alan David Willey
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Patent number: 5916865Abstract: Liquid bleaching agent suspension comprising essentiallya) a mixture of a C.sub.8 -C.sub.18 -fatty alcohol, oxyethylated with 1 to 5 units of ethylene oxide, and a C.sub.8 -C.sub.18 -fatty alcohol, oxyethylated with 6 to 25 units of ethylene oxide,b) a cyclic anhydride,c) an aqueous solution of hydrogen peroxide andd) water.Type: GrantFiled: August 29, 1997Date of Patent: June 29, 1999Assignee: Clariant GmbHInventors: Gerd Reinhardt, Vera Friderichs, Nicole Horneff
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Patent number: 5914301Abstract: A multipurpose detergent composed of: soda ash 40%.about.30% by weight; sodium sulfate 18%.about.25% by weight; sodium lauryl sulfate 23%.about.10% by weight; coconut oil fatty diethanolamide 11%.about.3% by weight; sodium carbonate peroxide 23%.about.10% by weight; citric acid 12%.about.3% by weight; sodium metasilicate 10%.about.2.5% by weight; carboxy methyl cellulose 7%.about.2% by weight; sodium lauroyl lactylate 15%.about.7% by weight; sodium polycrylate 5%.about.1% by weight; and natural enzyme 8%.about.2% by weight.Type: GrantFiled: October 22, 1997Date of Patent: June 22, 1999Inventors: Yu-Chao Hsu, Wan-Yee Pan
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Patent number: 5914304Abstract: Concentrate liquid peroxide compositions, especially bleaching and washing compositions of improved stability are produced in a process in which components incorporated into the liquid composition after blending of peroxide with components including a sequestering agent, are subjected to a presequestration stage. In the presequestration stage the further component is contacted with one or more sequestering agents, especially sequestrants which are capable of sequestering transition metal ions, especially a mixture in which one component is capable of sequestering cobalt and other components are not effective in sequestering cobalt. The invention is of particular value where the further component is a pH modifying solution, especially an alkali.Type: GrantFiled: April 25, 1997Date of Patent: June 22, 1999Assignee: Warwick International Group, Ltd.Inventors: Vincent Brian Croud, Stephen James Tompsett, Susan Jane Scarborough
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Patent number: 5912218Abstract: 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 thereofType: GrantFiled: December 12, 1996Date of Patent: June 15, 1999Assignee: The Procter & Gamble CompanyInventors: Kuntal Chatterjee, William Michael Scheper
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Patent number: 5908820Abstract: There is provided a cationic organic peroxyacid having the general formula ##STR1## wherein: R.sub.1 is an optionally substituted, linear or branched, C.sub.8 -C.sub.12 alkyl or alkenyl group; R.sub.2 and R.sub.3 are each a methyl group; R.sub.4 is an optionally substituted, linear or branched C.sub.3 -C.sub.5 alkyl or alkenyl group; p is 0 or 1; z is an integer selected from 0-3; y is an integer selected from 0-5; w is 0 or 1; and X.sup.- is a counter anion. This peroxyacid was found to have good bleaching performance without showing incompatibility with anionic surfactants.Type: GrantFiled: October 24, 1996Date of Patent: June 1, 1999Assignee: Lever Brothers CompanyInventors: John Oakes, David William Thornthwaite
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Patent number: 5905067Abstract: The present invention relates to a system for delivering liquid bleach activators to solid or granular peroxygen bleach containing compositions. The preferred delivery system is liquid activators complexed with a cyclodextrin, preferably beta-cyclodextrin. The present invention also relates to a method for preparing the liquid bleach activator/cyclodextrin complexes described herein.Type: GrantFiled: January 27, 1998Date of Patent: May 18, 1999Assignee: Procter & Gamble CompanyInventors: Benjamin Edgar Chapman, Toan Trinh
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Patent number: 5902783Abstract: The invention relates to particles having a core comprising a peroxy compound with capability of releasing hydrogen peroxide or peroxy acids in aqueous solutions, which particles have a coating containing alkali metal silicate and a chelating agent. The invention also relates to preparation and use of the particles as well as a composition containing such particles.Type: GrantFiled: August 23, 1996Date of Patent: May 11, 1999Assignee: Eka Chemicals ABInventors: Hans Lagnemo, Monica Jigstam
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Patent number: 5902354Abstract: The use of anionic surfactants in a liquid peroxygen bleaching composition disclosed, for reducing itching of the skin, after it has come in contact with said compositions.Type: GrantFiled: March 11, 1997Date of Patent: May 11, 1999Assignee: The Procter & Gamble CompanyInventors: Gianmarco Polotti, Stefano Scialla, Raffaele Scoccianti
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Patent number: 5898024Abstract: The present invention discloses an alkaline cleaning composition for cleaning heavily soiled metal surfaces such as food fryers, baking pans, high temperature pasteurizers, and beer kettles, ceramic surfaces such as restaurant grade ceramic china plates and platters, and plastic surfaces. The cleaning composition is noncaustic and includes a peroxygen compound, a chelate, and a metasilicate and/or sesquisilicate. A preferred cleaning composition further includes a surfactant and hydrated builder.Type: GrantFiled: January 9, 1997Date of Patent: April 27, 1999Assignee: Charvid Limited LiabilityInventor: Charles Bullick Talley
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Patent number: 5898025Abstract: A phosphate-free mildly alkaline, dishwashing detergent composition containing:(a) from 20 to 60% by weight of sodium citrate;(b) from 5 to 50% by weight of alkali metal hydrogen carbonate;(c) from 7 to 12% by weight of alkali metal carbonate;(d) from 2 to 20% by weight of a bleaching agent;(e) from 1 to 8% by weight of a bleaching agent activator; and(f) from 0.2 to 4% by weight of an enzyme, all weights being based on theweight of the composition wherein the composition in the form of a 1% by weight aqueous solution has a pH value of from about 8 to less than 10.Type: GrantFiled: August 1, 1997Date of Patent: April 27, 1999Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Birgit Burg, Juergen Haerer, Peter Jeschke, Willi Buchmeier, Helmut Blum, Christian Nitsch, Heinz-Juergen Voelkel, Horst-Dieter Speckmann
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Patent number: 5891392Abstract: Aqueous acidic ready-to-use aqueous cleaning and disinfectant compositions include hydrogen peroxide as an active disinfecting constituent further include a C.sub.1 -C.sub.6 monohydric alcohol, a glycol ether or butoxypropanol or, propoxypropanol, a nonionic surfactant, and citric acid. Methods of cleaning and disinfecting surfaces are also disclosed.Type: GrantFiled: September 12, 1997Date of Patent: April 6, 1999Assignee: Reckitt & Colman Inc.Inventors: Michael Vincent Monticello, George Robert Mayerhauser
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Patent number: 5888954Abstract: A process for inhibiting the corrosion of silver in a dishwashing detergent solution by adding to the solution an inorganic redox-active substance.Type: GrantFiled: August 28, 1997Date of Patent: March 30, 1999Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Juergen Haerer, Helmut Blum, Birgit Burg, Thomas Holderbaum, Willi Buchmeier, Peter Jeschke, Horst-Dieter Speckmann, Frank Wiechmann, Christian Nitsch