For In-place Cleaning Of Stationary Apparatus Patents (Class 510/234)
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Patent number: 6998376Abstract: In this process, the inner surfaces of the installations which have been in contact with the coffee are treated with an aqueous alkaline solution containing at least one peroxidic compound.Type: GrantFiled: October 19, 2000Date of Patent: February 14, 2006Assignee: Ecolab GmbH & Co. OHGInventors: Thomas Tyborski, Werner Lüdecke
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Patent number: 6992053Abstract: The present invention encompasses a composition, suitable for cleaning hard surfaces, comprising a bleaching agent and a silicone glycol.Type: GrantFiled: March 25, 2002Date of Patent: January 31, 2006Assignee: The Procter & Gamble CompanyInventors: Laura Cermenati, Vincenzo Tomarchio
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Patent number: 6916776Abstract: A restaurant cleaning towel made from a substrate such as a woven, nonwoven, or knit fabric. A sanitizer release polymer composition comprising at least one cationic (or alternatively, nonionic) surfactant is bound to the surface of the towel. Preferably, the cationic surfactant is present in the sanitizer release polymer composition in an amount of about 1 to about 10 weight percent, based on a total weight of the composition. The composition may also include at least one nonionic co-surfactant in combination with the cationic surfactant. The towel also includes a color label on its surface to identify the area of the restaurant in which the cleaning towel is to be utilized. The towel may optionally include an international icon, a tactile label, and/or a label in a plurality of languages identifying the area where the towel is to be utilized.Type: GrantFiled: September 21, 2004Date of Patent: July 12, 2005Assignee: Svendsen Limited PartnershipInventor: Jeffrey S. Svendsen
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Patent number: 6911421Abstract: The present invention is a composition comprising a surfactant blend of nonionic and anionic surfactants useful for the removal of oligomer deposits from polyester fibers and polyester processing equipment. The composition of the present invention includes a surfactant blend of an ethoxylated sorbitan ester and at least one additional nonionic or anionic surfactant. The combination of the ethoxylated sorbitan ester and additional surfactants used in the invention surprisingly has a synergistic effect on the removal of oligomer deposits from polyester fibers and polyester processing equipment.Type: GrantFiled: November 1, 2002Date of Patent: June 28, 2005Assignee: NICCA USA, Inc.Inventor: Kazu Ikebata
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Patent number: 6799585Abstract: A process is presented for cleaning fermentation or storage tanks with an enzyme-containing formulation containing one or more laccases, peroxidases, oxireductases, transferases, isomerases, lyases, and ligases or a mixture thereof. The process provides improved cleaning results, water consumption, and waste water pollution.Type: GrantFiled: May 19, 2003Date of Patent: October 5, 2004Assignee: Ecolab GmbH Co. oHGInventors: Marion Lengling, Harald Kluschanzoff
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Patent number: 6794352Abstract: A restaurant cleaning towel made from a substrate such as a woven, nonwoven, or knit fabric. A sanitizer release polymer composition comprising at least one cationic (or alternatively, nonionic) surfactant is bound to the surface of the towel. Preferably, the cationic surfactant is present in the sanitizer release polymer composition in an amount of about 1 to about 10 weight percent, based on a total weight of the composition. The composition may also include at least one nonionic co-surfactant in combination with the cationic surfactant. The towel also includes a color label on its surface to identify the area of the restaurant in which the cleaning towel is to be utilized. The towel may optionally include an international icon, a tactile label, and/or a label in a plurality of languages identifying the area where the towel is to be utilized.Type: GrantFiled: August 2, 2002Date of Patent: September 21, 2004Inventor: Jeffrey S. Svendsen
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Patent number: 6750186Abstract: A tablet or pellet for cleaning mineral deposits from the interior of a dishwasher machine is placed within the machine, and the machine is run through its normal dishwashing cycle. The pellet or tablet is formed of a mixture of a binder matrix and a chelating agent capable of carrying out chelation solubilization on the mineral deposits. The pellet or tablet withstands substantial dissolving during the initial rinse cycle or cycles, and then dissolves to provide a pH no greater than 6 during the wash cycle.Type: GrantFiled: January 31, 2003Date of Patent: June 15, 2004Inventor: Robert Black
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Patent number: 6686324Abstract: A low-foaming cleaning solution and dry particulate formulation which can be diluted with water, deionized water, or mixtures thereof, to form the cleaning solution. The cleaning solution has an alkaline pH, which is preferably from about 8 to about 11.5 and consists essentially of at least one low foaming surfactant in a concentration of from about 0.005% to about 40% w/w of the total solution, at least one active oxygen releasing compound in an amount effective to produce a hydrogen peroxide concentration of from about 0.005% to about 50% w/w of the total solution, at least one builder in a concentration of from about 0.001% to about 50% w/w of the total solution, and at least one diluent selected from the group consisting of water, deionized water, and mixtures thereof.Type: GrantFiled: July 12, 2002Date of Patent: February 3, 2004Assignee: Virox Technologies, Inc.Inventors: Jose A. Ramirez, Nancy M. A. Sullivan
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Patent number: 6667290Abstract: An article for sanitizing a surface with a sanitizing solution while maintaining the concentration level of a sanitizer in the sanitizing solution at an effective concentration level. A substrate that absorbs and holds the sanitizing solution is treated with a sanitizer release polymer composition. The substrate may be a woven, nonwoven, or knit fabric, a foam or sponge, or the like. The sanitizer release polymer composition may include a cationic or nonionic surfactant or binder that is operable to maintain the concentration level of the sanitizer at the effective level during prolonged periods of use.Type: GrantFiled: August 12, 2002Date of Patent: December 23, 2003Inventor: Jeffrey S. Svendsen
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Patent number: 6630434Abstract: A low viscosity aqueous cleaning composition provides increasing viscosity upon dilution which provides a high viscosity diluted cleaning composition having solvents compatible with the rod micelle thickener and the cleaning system that clings for an extended period of time in a thickened form containing cleaning system ingredients that can penetrate and remove hard baked-on soils on vertical surfaces in cleaning units. The composition contains active cleaning ingredients (acid, alkaline and enzyme) that, in combination with thickening systems, provide the useful properties. The thickened materials can be applied on cold or hot surfaces and can successfully penetrate, soften and remove baked-on food soil on a variety of surfaces including oven walls, doors and grills, baking dishes, utensils, etc.Type: GrantFiled: May 21, 2001Date of Patent: October 7, 2003Assignee: Ecolab Inc.Inventors: Michael E. Besse, Richard O. Ruhr, Gerald K. Wichmann, Timothy A. Gutzmann
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Publication number: 20030100462Abstract: A cleaning wipe comprising a water insoluable substrate, wherein the substrate is a nonwoven fabric which is impregnated with a cleaning composition.Type: ApplicationFiled: November 13, 2001Publication date: May 29, 2003Applicant: Colgate-Palmolive CompanyInventors: Bing Suazon, Dawne Barry, Karen Wisniewski, Barbara Thomas
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Patent number: 6564813Abstract: A process is presented for cleaning fermentation or storage tanks with an enzyme-containing formulation containing one or more laccases, peroxidases, oxireductases, transferases, isomerases, lyases, and ligases or a mixture thereof. The process provides improved cleaning results, water consumption, and waste water pollution.Type: GrantFiled: April 7, 2000Date of Patent: May 20, 2003Assignee: Ecolab GmbH & Co. OHGInventors: Marion Lengling, Harald Kluschanzoff
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Patent number: 6534075Abstract: An antimicrobial and antiviral composition in powder form or in the form of a two part liquid concentrate for washing and sanitizing foods, food surfaces, food ware, process waters, animal quarters, and animal carcasses is described. The composition may also be used to reduce the microbial and viral population on animals; reducing human pathogenic microbes, reducing opportunistic pathogenic microbes on eggs, and treating skin diseases. The composition includes three reactive species which in solution form an oxidizing species, and optionally a food grade acid source. The reactive species include a natural source of a quaternary or protonizable nitrogen compound which is acceptable on foods, an oxidant and a halide source.Type: GrantFiled: March 26, 1999Date of Patent: March 18, 2003Assignee: Ecolab Inc.Inventors: Robert D. P. Hei, Kim R. Smith, Polly D. Laugen, Bruce R. Cords, Shaun P. Kennedy
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Patent number: 6528468Abstract: The present invention relates to a pickling agent for the chemical conversion coating of a heat exchanger which is capable of cleaning the complicated structure comprising fins and tubes of a heat exchanger in preparation for the successful formation of a chemical conversion film, a method of pickling a heat exchanger, a method of treating a heat exchanger comprising said pickling method, and a heat exchanger produced by using said treating method. The present invention provides pickling agent for the chemical conversion coating of a heat exchanger which comprises an acidic aqueous solution containing nitric acid and/or sulfuric acid and at least one metal and/or metal oxoanion salt derived from any metal selected from the group consisting of iron, nickel, cobalt, molybdenum and cerium.Type: GrantFiled: December 1, 2000Date of Patent: March 4, 2003Assignee: Nippon Paint Co., Ltd.Inventors: Masahiko Matsukawa, Kentaro Saito, Toshio Inbe, Kasuyoshi Yamasoe
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Patent number: 6489278Abstract: The invention relates to a A highly alkaline or mildly alkaline detergent composition having enhanced cleaning properties. The detergent which combines a source of alkalinity and with a blend of nonionic surfactants that enhances cleaning waxy-fatty soils. This blend of surfactants shows surprising cooperation in reducing surface tension and comprises a nonionic or amphoteric surfactant and a silicone containing surfactant.Type: GrantFiled: January 13, 1997Date of Patent: December 3, 2002Assignee: Ecolab Inc.Inventors: Steven E. Lentsch, Victor F. Man, Deborah A. Ihns, Helmut K. Maier, Rhonda K. Schulz
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Patent number: 6479454Abstract: A peroxygen antimicrobial composition is provided comprising an amine oxide and peroxygen compound. The combination of the two components produces an effective antimicrobial composition, providing a more potent biocide than can be obtained by using these compounds separately. Other components can be added to the composition such as peracetic acid, acetic acid, hydrotrope coupling agents, etc. The composition can be used to sanitize various surfaces such as hard surfaces found in food processing, food service and health care industries as well as to sanitize the surfaces of food and in the treatment of water.Type: GrantFiled: October 5, 2000Date of Patent: November 12, 2002Assignee: Ecolab Inc.Inventors: Kim R. Smith, Robert D. P. Hei
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Patent number: 6472199Abstract: Improved, non-chlorinated systems and methods for removing soils from hard surfaces are provided wherein such surfaces are initially contacted with a first aqueous use dispersion including a protease enzyme, followed by contact the surface with a second aqueous acidic use dispersion. The enzyme dispersion preferably includes a polyol such as propylene glycol and in use is heated to a temperature up to about 120° C. The acid dispersion may include a surfactant and is also used in a heated condition. The two-component systems of the invention can be used for CIP treatment of dairy or other equipment in lieu chlorinated cleaning agents.Type: GrantFiled: April 4, 2001Date of Patent: October 29, 2002Assignee: West Agro, Inc.Inventor: Alan R. Monken
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Patent number: 6472358Abstract: A sanitizing composition comprising at least one aliphatic short chain antimicrobially effective C5 to C14 fatty acid or mixture thereof, at least one carboxylic weak acid and a strong mineral acid which may be nitric or a mixture of nitric and phosphoric acids.Type: GrantFiled: November 15, 2001Date of Patent: October 29, 2002Assignee: EcoLab Inc.Inventors: Francis Lawrence Richter, Duane Joseph Reinhardt, Richard R. Staub, Teresa C. Podtburg
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Patent number: 6423675Abstract: A composition for a cleaning-in-place system is described. The composition has a halogen dioxide and a optionally hydroxide and does not require the use of a detergent to display excellent cleaning and disinfecting properties on processing equipment such as the equipment found in breweries, dairy plants and carbonated beverage plants.Type: GrantFiled: November 23, 1999Date of Patent: July 23, 2002Assignee: Diversey Lever, Inc.Inventors: Michael Francis Coughlin, David Christopher Cole, Charles Allen Crawford
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Patent number: 6391836Abstract: A method and biological cleaning system are provided for cleaning substrate surfaces of oils and/or greases using a biological cleaning system which utilizes a pre-treatment bath and/or post-treatment bath as part of the cleaning system. The pre-treatment and/or post-treatment baths are compatible with the biological cleaning bath and during operation of the system, the used pre-treatment and/or post-treatment baths are recycled to the biological cleaning solution for biodegradation. A system is provided in which none of the pre-treatment, post-treatment or biological cleaning baths need expensive waste disposal. Replenishment pre-treatment and/or post-treatment baths as well as biological cleaning baths are added as needed to the biological cleaning system. Other treatment baths may be added directly to the biological cleaning bath with or without pre- or post-treatment for specific purposes such as a detergent phosphating bath used in the biological cleaning tank to provide a cleaned phosphated part.Type: GrantFiled: January 16, 2001Date of Patent: May 21, 2002Assignee: BioClean, USAInventors: Juan Haydu, Timothy P. Callahan, Zoltan F. Mathe, Mikael Norman
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Patent number: 6368610Abstract: A disinfecting composition which is bactericidal and effective to kill yeast includes (a) at least one a monocarboxylic acid of formula R—COOH, in which R a saturated or unsaturated, straight- or branched-chain alkyl radical comprising from 6 to 12 carbon atoms; (b) a strong inorganic acid; (c) at least one organic acid of formula R′CH2—CO2H, in which R′ is H or OH; (d) at least one anionic surfactant; (e) at least one solubilizing agent consisting of a compound of formula R″O(CH2CH2O)x—H, in which R″ represents a C2 to C6 alkyl radical, x represents an integer from 1 to 3; and (f) water.Type: GrantFiled: February 7, 2000Date of Patent: April 9, 2002Assignee: SOPURA S.A.Inventors: Nicolas Velings, Ferdinand Herman, Paul-Eric Loncin
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Publication number: 20020037821Abstract: Detergent compositions containing at least two surfactants, one having a cloud point of less than about 30° C., especially below about 14° C., and another having a cloud point of greater than about 30° C., especially above about 40° C.Type: ApplicationFiled: January 19, 2001Publication date: March 28, 2002Inventor: Lance L. Renfrow
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Patent number: 6310024Abstract: Disclosed in the present application is a composition that is useful for rust and/or corrosion removal that contains a reducing agent, a chelating agent, a surfactant, and a dispersant. Disclosed also are processes for using this composition in aqueous systems and metal surface treatment.Type: GrantFiled: March 24, 2000Date of Patent: October 30, 2001Assignee: Calgon CorporationInventors: Jasbir S. Gill, Monica A. Yorke
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Patent number: 6268324Abstract: A low viscosity aqueous cleaning composition provides increasing viscosity upon dilution which provides a high viscosity diluted cleaning composition having solvents compatible with the rod micelle thickener and the cleaning system that clings for an extended period of time in a thickened form containing cleaning system ingredients that can penetrate and remove hard baked-on soils on vertical surfaces in cleaning units. The composition contains active cleaning ingredients (acid, alkaline and enzyme) that, in combination with thickening systems, provide the useful properties. The thickened materials can be applied on cold or hot surfaces and can successfully penetrate, soften and remove baked-on food soil on a variety of surfaces including oven walls, doors and grills, baking dishes, utensils, etc.Type: GrantFiled: January 6, 1995Date of Patent: July 31, 2001Assignee: Ecolab Inc.Inventors: Michael E. Besse, Richard O. Ruhr, Gerald K. Wichmann, Timothy A. Gutzmann
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Patent number: 6218349Abstract: The present invention provides for a composition suitable for removing proteinaceous material comprising water, an emulsifier, a chelating agent, one or more mineral acids, and a surfactant; wherein: the emulsifier is a polyether nonionic emulsifier or an amine oxide; the chelating agent is an alkylaminophosphonic acid, a hydroxyalkylphosphonic acid, or an alkylphosphonic acid carboxylic acid; the one or more mineral acids are present in an mount such that the pH of the composition is less than about 4.Type: GrantFiled: March 17, 2000Date of Patent: April 17, 2001Assignee: Ecolab, Inc.Inventors: Joseph I. Kravitz, Richard O. Ruhr, Michael E. Besse
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Patent number: 6204231Abstract: An aqueous alkaline composition for cleaning equipment used in the food industry wherein the composition contains potassium hydroxide or a mixture of potassium hydroxide and sodium hydroxide and wherein the potassium hydroxide is present in an amount of at least 20% by weight, based on the weight of hydroxide present in the composition. A process for regenerating the cleaning solution is also disclosed.Type: GrantFiled: September 1, 1998Date of Patent: March 20, 2001Assignee: Henkel Kommandigesellschaft Auf AktienInventors: Anja Patten, Ralf Krack, Dietmar Rossner
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Patent number: 6197738Abstract: A nontoxic sanitizing cleaner comprising an organic acid having a pH less than 3, a chelating agent, and a surfactant. The invention also contemplates a buffering agent in the cleaner. In a preferred embodiment, the sanitizing cleanser is in the form of a solution containing 94% citric acid, 4% EDTA, 1% sodium laurel sulfate, and 1% monosodium phosphate, by weight. The invention also contemplates using the nontoxic sanitizing cleaner in a cosmetic lotion, and in processes for cleaning and sanitizing food processing equipment.Type: GrantFiled: April 30, 1997Date of Patent: March 6, 2001Inventor: Robert R. Regutti
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Patent number: 6197739Abstract: Compositions for use as soil removing agents in the food processing industry are disclosed. Food soiled surfaces in food manufacturing and preparation areas can be cleaned. The compositions are manufactured in the form of a concentrate which is diluted with water and used. The cleaning materials are made in a two part system which are diluted with a diluent source and mixed prior to use. The products contain high quality cleaning compositions and use a variety of active ingredients. The preferred materials, in a two part system contain detergent compositions, enzymes that degrade food compositions, surfactants, low alkaline builders, water conditioning (softening) agents, and optionally a variety of formulary adjuvants depending on product form.Type: GrantFiled: August 19, 1997Date of Patent: March 6, 2001Assignee: Ecolab Inc.Inventors: Thomas R. Oakes, Kristine K. Wick, Bruce R. Cords, Sandra L. Bull, Francis L. Richter
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Patent number: 6191091Abstract: The cleaning compound for a water dispenser includes four ingredients: a) N′alkyl dimethyl Benzyl Ammonium Chloride, within the range of 0.08 to 0.1% by weight; b) citric acid, of about 20% by weight of the total solution; c) propylene glycol (food grade), about 4% by weight; and d) sodium hydroxide (food grade), in sufficient quantity to neutralize the solution to a pH range preferably between 2.6 and 4.5. During the initial clean-up steps, and contrarily to prior art cleaning methods, the cleaning method does not require complete purge of the inner water reservoir from drinking water, due to the tacky nature of the cleaning compound which can still be effective in diluted state and in a submerged environment.Type: GrantFiled: February 27, 1998Date of Patent: February 20, 2001Inventor: Marcel Raymond
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Patent number: 6071356Abstract: The present invention relates to methods of cleaning-in-place soiled process equipment comprising circulating a solution comprising a protease and a lipase for a sufficient period of time to permit action of the enzymes.Type: GrantFiled: January 7, 1998Date of Patent: June 6, 2000Assignee: Novo Nordisk AlsInventor: Hans Sejr Olsen
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Patent number: 6051615Abstract: A process for reducing foam in an alkyl polyglycoside-containing cleaning composition by adding a defoaming-effective amount of an alkyl polyglycoside having the general formula I:R.sub.1 O(Z).sub.a Iwherein R.sub.1 is a monovalent organic radical having from 16 to 18 carbon atoms; Z is a glucose residue having 5 or 6 carbon atoms; a is a number having a value of from 1 to about 6, to a cleaning composition containing an alkyl polyglycoside having the general formula II:R.sub.2 O(Z).sub.a IIwherein R.sub.2 is a monovalent organic radical having from 8 to 16 carbon atoms; Z is a glucose residue having 5 or 6 carbon atoms; a is a number having a value of from 1 to about 6.Type: GrantFiled: June 16, 1997Date of Patent: April 18, 2000Assignee: Henkel CorporationInventors: Stephen F. Gross, John Frederick Hessel
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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: 6017864Abstract: We have found that long standing problems relating to the stability of organic materials in alkaline detergents, including the reversion or hydrolysis of condensed phosphate sequestrants in alkaline solid detergent compositions can be alleviated by the use of an organic composition having vicinal hydroxyls. Such a solid block detergent can be manufactured by a process in which a source of alkalinity, a functional material including a condensed phosphate sequestering agent, an organic compound having two vicinal hydroxyl groups, are combined in a pourable composition or liquid. Such a liquid can be introduced into a plastic capsule and solidified. During manufacture and solidification, we have found that the vicinal hydroxyl compound prevents substantial hydrolysis or reversion of the condensed phosphate maintaining effective hardness ion sequestration during the use of the detergent. The stabilizer can also stabilizes color, chlorine content and dispensing properties.Type: GrantFiled: December 30, 1997Date of Patent: January 25, 2000Assignee: Ecolab Inc.Inventors: Kent R. Brittain, Bernard J. Heile, Helmut K. Maier, Charles A. Hodge, G. Jason Wei
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Patent number: 5904161Abstract: Cleaning compositions, particularly automatic dishwashing detergent compositions, comprising a stability-enhanced amylase and bleach-improving materials are provided. More specifically, the invention relates to granular automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits. The automatic dishwashing compositions comprise stability-enhanced amylase enzymes and one or more bleach-improving compounds, such as organic peroxides, quaternary substituted bleach activators, quaternary substituted peracids and manganese or iron bleach catalysts.Type: GrantFiled: February 28, 1996Date of Patent: May 18, 1999Assignee: The Procter & Gamble CompanyInventors: Saroj Rai, William Michael Scheper, Lucille Florence Taylor, Gregory Stephen Caravajal, James Charles Theophile Roger Burckett-St. Laurent, Kakumanu Pramod
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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: 5879470Abstract: Basic cleaning compositions using toxicologically-acceptable ingredients for cleaning fruits and vegetables are provided. Liquid formulations comprising detergent surfactant, such as oleate, alcohol ethoxylates, etc., and neutralized phosphoric acid are sprayed onto apples, lettuce and the like to remove soil and unwanted deposits, especially wax. Articles for applying the compositions to produce by spraying are disclosed. Use of the compositions for disinfectancy/sanitization of produce and cleaning/disinfectancy/sanitization of non-food inantimate surfaces are disclosed.Type: GrantFiled: May 5, 1997Date of Patent: March 9, 1999Assignee: The Procter & Gamble CompanyInventors: Bruce Prentiss Murch, Brian Joseph Roselle, Kyle David Jones, Keith Homer Baker, Thomas Edward Ward, Toan Trinh
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Patent number: 5866523Abstract: A cleaning composition and method of use are disclosed. The composition comprises a mixture of a ketone, at least one glycol ether, water and optionally a surfactant. The composition when applied to substrates coated with resinous coatings is effective for removing the coating from the substrate.Type: GrantFiled: November 14, 1997Date of Patent: February 2, 1999Assignee: BetzDearborn Inc.Inventors: Umit Turunc, Patricia A. Popowich
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Patent number: 5863345Abstract: The present invention discloses an alkaline cleaning composition for cleaning heavily soiled surfaces such as food fryers, baking pans, high temperature pasteurizers, beer kettles and similar equipment that normally requires caustic soda based cleaners to clean. The present invention is also useful in cleaning ceramics such as restaurant grade ceramic china plates and platters. The present invention is particularly useful in cleaning brass and aluminum parts and equipment without causing corrosion damage. Further, since the cleaning composition of the present invention is not based on caustic soda, the composition is not considered hazardous. Further, the cleaning composition of the present invention dissolves readily in water, providing a solution that can be used in mechanical sprayers, soak-tanks and clean-in-place equipment. Also the cleaning composition may be effectively used at lower temperatures than caustic cleaning agents.Type: GrantFiled: January 22, 1997Date of Patent: January 26, 1999Assignee: Charvid Limited Liability CompanyInventor: Charles Bullick Talley
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Patent number: 5861366Abstract: Compositions for use as soil removing agents in the food processing industry are disclosed. Food soiled surfaces in food manufacturing and preparation areas can be cleaned. The compositions are preferably manufactured in the form of a solid block or powder concentrate which is diluted with water and used. The cleaning materials are made in a one or two part system which are diluted with a diluent source and mixed prior to use. The products contain high quality cleaning compositions and use a variety of active ingredients. The preferred materials, in a one or two part system, contain detergent compositions, enzymes that degrade food compositions, surfactants, low alkaline builders, water conditioning (softening) agents, and optionally a variety of formulary adjuvants depending on product form.Type: GrantFiled: May 21, 1996Date of Patent: January 19, 1999Assignee: Ecolab Inc.Inventors: Deborah A. Ihns, William Schmidt, Francis R. Richter
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Patent number: 5858941Abstract: The invention is a method of removing soils containing oils and fats from food processing surfaces. The method includes the steps of formulating a wash composition from a two-part concentrate. The concentrate first part includes a source of alkalinity and water. The concentrate second part includes a quaternary ammonium compound. After formulation, the wash composition has a major portion of water, from about 100 ppm to 20,000 ppm of quaternary ammonium compound, and an alkali source present in a concentration to provide a pH of from about 10 to 14. After formulation, the wash composition may be used by applying it to the food processing surface. Optionally, the wash composition may also include a chelating agent and a second nonionic or anionic detersive agent.Type: GrantFiled: May 12, 1997Date of Patent: January 12, 1999Assignee: Ecolab Inc.Inventors: Thomas R. Oakes, Timothy A. Gutzmann, Cynthia Lee Ross, Bruce E. Schmidt
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Patent number: 5789361Abstract: 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: March 1, 1996Date of Patent: August 4, 1998Assignee: Charvid Limited Liability Co.Inventor: Charles Bullick Talley
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Patent number: 5786319Abstract: A concentrated detergent formulation effective to remove grease includes a glycol ether solvent system in combination with a high concentration of a surfactant system stably dispersed in water. The surfactant system is preferably a combination of an hydrotrope and a nonionic surfactant with a concentration preferably in the range of 7% or greater. The glycol ether solvent system can be any of a number of glycol ethers with dipropylene glycol n-butyl ether and dipropylene glycol monomethyl ether preferred. The formulation can be used at high concentrations to effectively remove baked-on grease in deep fryers and clean parking lots and can be used at a lower concentration as a presoak and even at a more dilute concentration for general purpose degreasing and spray and wipe cleaner. The product is low alkaline and non-corrosive.Type: GrantFiled: June 23, 1997Date of Patent: July 28, 1998Assignee: Diversey Lever, Inc.Inventors: Kimberly M. Pedersen, Paul A. Pappalardo
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Patent number: 5783542Abstract: A two-part enzyme-based cleaning system useful in clean-in-place operations to remove proteinaceous soils from dairy equipment is described. The system comprises two liquid concentrates stored in separate containers, the concentrates being diluted and mixed for use.A. The first concentrate consists of:i) 1.5 to 7.5 percent by weight of a source of alkalinity selected from the sources of hydroxide based alkaline compositions;ii) 1 to 16 percent by weight of a water conditioner selected from the group consisting of polyacrylic acids and polyphosphates; andiii) balance water.B. The second concentrate consists of:i) 5 to 45 percent by weight of an enzyme stabilizing blend of an alkali salt of a (C.sub.6 to C.sub.12) fatty acid and a linear (C.sub.8 -C.sub.Type: GrantFiled: June 7, 1996Date of Patent: July 21, 1998Assignee: Diversey Lever, Inc.Inventor: Carol A. Rouillard
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Patent number: 5770555Abstract: A process for preparing stable aqueous cleaning concentrate compositions containing high concentrations of alkali and polymers useful as scale-inhibiting cleaning additives is disclosed. Water-soluble polymer additives useful for preparing the stable cleaning concentrates are polymers of acrylic acid, and optionally maleic acid, and selected allyloxy monomers. The storage-stable cleaning concentrates are especially useful in providing cleaning formulations for automatic washing systems, such as bottle washing and clean-in-place operations.Type: GrantFiled: November 13, 1996Date of Patent: June 23, 1998Assignee: Rohm and Haas CompanyInventor: Barry Weinstein
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Patent number: 5733342Abstract: Hydroxamic acids and hydroxamic acid ethers I and II ##STR1## where Z.sup.1 and Z.sup.2 are --NH --OY, --NR.sup.1 --OY or --OX, where in the case of (I) at least one of Z.sup.1 or Z.sup.2, and in the case of (II) Z.sup.1 is --NH --OY or --NR.sup.1 --OY, andR.sup.1 is C.sub.1 -C.sub.18 -alkyl,X is hydrogen, alkali metal, ammonium or substituted ammonium, andY is hydrogen, alkali metal, ammonium, substituted ammonium or C.sub.1 -C.sub.18 -alkyl, andL is a C.sub.1 -C.sub.100 linker which can also carry oxygen and nitrogen functional groups,with the exception of N,N-bis(carboxymethyl)-2-aminoacetohydroxamic acid.Type: GrantFiled: October 19, 1995Date of Patent: March 31, 1998Assignee: BASF AktiengesellschaftInventors: Thomas Greindl, Alexander Kud, Volker Schwendemann, Michael Kneip, Elisabeth Kappes, Richard Baur, Juergen Schneider, Birgit Potthoff-Karl, Alfred Oftring
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Patent number: 5672578Abstract: Limescale removing compositions contain a low level of surfactant, i.e., less than about 1% and maleic acid and have a pH of from about 0.1 to about 4.5. The surfactant can be anionic, nonionic, amphoteric, or cationic, but is preferably cationic. The composition can be used neat, or diluted, by applying it to the surface to be treated, leaving it to react, and then rinsing.Type: GrantFiled: August 2, 1996Date of Patent: September 30, 1997Assignee: The Procter & Gamble CompanyInventors: Michel Jean Carrie, Eddy Vos
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Patent number: 5663132Abstract: The present invention discloses an alkaline cleaning composition for cleaning heavily soiled surfaces such as food fryers, baking pans, high temperature pasteurizers, beer kettles and similar equipment that normally requires caustic soda based cleaners to clean. The present invention is also useful in cleaning ceramics such as restaurant grade ceramic china plates and platters. The present invention is particularly useful in cleaning brass and aluminum parts and equipment without causing corrosion damage. Further, since the cleaning composition of the present invention is not based on caustic soda, the composition is not considered hazardous. Further, the cleaning composition of the present invention dissolves readily in water, providing a solution that can be used in mechanical sprayers, soak-tanks and clean-in-place equipment. Also the cleaning composition may be effectively used at lower temperatures than caustic cleaning agents.Type: GrantFiled: March 1, 1995Date of Patent: September 2, 1997Assignee: Charvid Limited Liability CompanyInventor: Charles Bullick Talley
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Patent number: 5603862Abstract: There disclosed a boiler compound which comprises as the effective components thereof: (A) metabisulfurous acid or metabisulfites; (B) aliphatic dicarboxylic acids or salts thereof represented by the general formula:M.sup.1 OOC--(CH.sub.2).sub.n --COOM.sup.,wherein M.sup.1 and M.sup.2 are each a hydrogen atom, a sodium atom, a potassium atom or an ammonium group and n is an integer of 1 to 10; and optionally (C) a water-soluble polymer for scale inhibitor. The boiler compound is safe for human health, has excellent stability, can be used as a liquid formulation having anticorrosion activity (activity of eliminating oxygen) or both of anticorrosion activity and antiscale activity and exhibits enhanced anticorrosion activity by increasing concentration of sulfite ion which is an oxygen scavenger.Type: GrantFiled: May 4, 1995Date of Patent: February 18, 1997Assignee: Kurita Water Industries Ltd.Inventors: Shiro Taya, Takayasu Ueda, Moriyasu Itoh
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Patent number: RE38262Abstract: We have found an alkaline warewashing detergent composition that can contain a critical amount of a nonionic rinse agent that when used in automatic warewashing machines permits the use of a potable water rinse without the addition of a separate rinse agent. Sufficient residual nonionic surfactant from the alkaline detergent remains on the surface ware and internal machine and rack surfaces after washing to promote adequate sheeting in the rinse cycle. The residual nonionic surfactant on internal surfaces dissolves in the rinse water to create an effective aqueous rinse agent. The nonionic rinse agents can be a single nonionic for both foam reduction cleaning and sheeting or can be a blend of nonionic materials providing these functions. The detergent can be in the form of a particulate, pelletized or block solid.Type: GrantFiled: March 2, 2001Date of Patent: October 7, 2003Assignee: Ecolab Inc.Inventors: John J. Rolando, Terry J. Klos