Clay Or Inorganic Aluminosilicate Salt Component (e.g., Bentonite, Zeolite, Etc.) Patents (Class 510/507)
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Patent number: 5955419Abstract: Laundry particles comprising: a) a porous carrier selected from the group consisting of Zeolite X, Zeolite Y, and mixtures thereof; and b) laundry agents comprising from about 5% to about 100% by weight of deliverable agents, preferably comprising from about 0.1% to about 50% blocker agents.Type: GrantFiled: April 4, 1997Date of Patent: September 21, 1999Assignee: The Procter & Gamble CompanyInventors: Dennis Joseph Barket, Jr., Jill Bonham Costa, Lois Sara Gallon, Janet Sue Littig
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Patent number: 5952280Abstract: A particulate agglomerated carrier is described which is suitable for use in admixture with a laundry detergent composition and which is capable of depositing an effective amount of an antibacterial agent on laundered fabrics and for providing an effective amount of same in the wash solution. The carrier is an agglomerate of a smectite-type clay and an antibacterial agent.Also, described is a laundry detergent composition containing such agglomerated carrier and process for depositing an effective amount of an antibacterial agent on laundered fabrics and for providing an effective amount of such antibacterial agent in the wash solution.Type: GrantFiled: August 25, 1997Date of Patent: September 14, 1999Assignee: Colgate-Palmolive Co.Inventors: Riad Ahmed Taha, Patrick J. Getty
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Patent number: 5948747Abstract: A spray-dried particulate detergent composition containinga) 3% to 20% by weight of anionic surfactant,b) 0 to 2% by weight of nonionic surfactant,c) 20% to 65% by weight of inorganic builders, based on water-free active substance, selected from carbonates, hydrogen carbonates and silicate-based builders, andd) 0 to 25% by weight of neutral salts, based on the weight of the spray-dried composition, wherein the spray-dried composition has been aftertreated with nonionic surfactant. The composition has favorable dispensing and solubility properties.Type: GrantFiled: August 11, 1997Date of Patent: September 7, 1999Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Fred Schambil, Wolfram Linke, Hubert Freese
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Patent number: 5945395Abstract: The method for producing nonionic detergent granules includes the steps of (I) blending the following (i) to (iii): (i) at least one of a nonionic surfactant and an aqueous nonionic surfactant solution; (ii) an acid precursor of an anionic surfactant capable of having a lamellar orientation; (iii) at least one of an alkali builder and an alkali, porous oil-absorbing carrier, to give a mixture of detergent starting materials containing the nonionic surfactant as a main surfactant component; and (II) heating the mixture obtained in step (I) at least up to a temperature capable of neutralizing the acid precursor of the anionic surfactant in an agitating mixer, and granulating while tumbling the agitating mixer thereby increasing a bulk density, to give nonionic detergent granules having a bulk density of from 0.6 to 1.2 g/ml.Type: GrantFiled: September 29, 1997Date of Patent: August 31, 1999Assignee: KAO CorporationInventors: Hiroyuki Yamashita, Koji Toyoda, Masaaki Sakaue, Yasuji Yamada, Teruo Kubota, Hiroshi Kogurusu
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Patent number: 5945474Abstract: A composition for removing a substance from a surface is prepared by: forming a gelatinous base material comprising water and a rheology agent; forming a solvent; forming a neutralizing agent; combining the gelatinous base material and the solvent with microscopic crystalline particles and an agent which reduces the effective rubbing coefficient of the microscopic crystalline particles to form a non-neutralized composition; and combining the non-neutralized composition with the neutralizing agent to form the composition. Foreign substances can be removed from a finished surface and the visibility of superficial scratches in the finished surface can be reduced by gently rubbing the composition on the finished surface and then removing the composition. The composition includes microscopic (approximately 1 micron) crystalline particles which contact, dislodge and remove the foreign substance or minute portions of the finish.Type: GrantFiled: October 6, 1997Date of Patent: August 31, 1999Inventor: Serge Gaultier
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Patent number: 5942479Abstract: A personal cleansing composition comprising: (a) from about 1% to about 30% by weight of a dispersed oil phase comprising a first oil component having an oil/surfactant solution interfacial tension (IFT) of greater than about 1.0 dynes/cm and a second oil component having an oil/surfactant solution interfacial tension (IFT) in the range of from about 0.1 to about 1.0 dynes/cm; and (b) from about 5% to about 30% by weight of water-soluble surfactant selected from anionic, nonionic, zwitterionic and amphoteric surfactants and mixtures thereof; and (c) water; and wherein the ratio of first to second dispersed oil component is in the range from about 20:1 to about 1:20. The cleansing products demonstrate excellent in-use efficacy benefits including excellent skin feel during and after use, good lather volume, stability and appearance characteristics, good skin conditioning, mildness, stability, cleansing, good water feel and appearance.Type: GrantFiled: November 26, 1997Date of Patent: August 24, 1999Assignee: The Proctor & Gamble CompanyInventors: Gayle Marie Frankenbach, Nicola Jacqueline Phipps, Wendy Victoria J. Richardson
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Patent number: 5939475Abstract: A novel pourable organophilic clay polyamide composition useful as a rheological additive for organic fluid system comprisinga) from about 5 to 15 weight percent of an organophilicly modified smectite-type clay,b) from about 25 to about 35 weight percent of one or more rheologically active polyamides andc) from about 40 to 60 weight percent of one or more organic solvents preferably selected from the group consisting of n-propanol, toluene and mineral spirits.The organophilic clay polyamide composition is used in non-aqueous fluid systems such as paints, inks, and coatings to provide improved rheological properties to the system.Type: GrantFiled: September 3, 1996Date of Patent: August 17, 1999Assignee: Rheox, Inc.Inventors: William Reynolds, Glen Hawthorne
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Patent number: 5935922Abstract: Detergent compositions comprise a surfactant selected from anionic, nonionic, cationic, amphoteric and zwitterionic detergent-active compounds and mixtures thereof; a detergency builder comprising zeolite P having a silicon to aluminium ratio not greater than 1.33; from 0.05% to 0.3%, by weight of the composition, anionic N-bonded stilbene optical brightener; and one or more additional components selected from manganese phthalocyaninetetrasulphonate and polymers selected from polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole, polyvinylpyrrolidones, polyvinyloxazolidones, polyvinylimidazoles and mixtures thereof.Type: GrantFiled: September 6, 1996Date of Patent: August 10, 1999Assignee: The Procter & Gamble CompanyInventors: Michael Alan J. Moss, Christiaan A. J. K. Thoen
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Patent number: 5929005Abstract: This invention provides graffiti removers for removing permanent ink stains from painted surfaces. The graffiti removers include an active solvent for dissolving the stains, which are organic in nature, an optional secondary solvent for concentrated attack on the stain without being adversely affected by dilution with water, an emollient for maintaining a uniform dispersion of particulates in the remover and on the graffiti-stained painted surfaces, and an amorphous, particulate, mildly abrasive filler for imbibing the solvents, the filler being selected to permit the slow release of the active solvent.Type: GrantFiled: December 4, 1998Date of Patent: July 27, 1999Assignee: Decora, IncorporatedInventor: John Ralph Smith
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Patent number: 5925614Abstract: The invention relates to a process for the preparation of a granular detergent composition or component having a bulk density greater than 650 g/l which has greater ease and flexibility of processing. The process comprises the step of dispersing a liquid binder throughout a powder stream in a high speed mixer to form granular agglomerates, wherein the powder stream comprises a powder consisting essentially of crystalline zeolite A, P, X, or mixtures thereof, and crystalline zeolite HS. It is preferred that the ratio of zeolite A, P, X, or mixtures thereof, to crystalline zeolite HS is from 1:1 to 99:1, preferably from 3:1 to 20:1, and that the powder has an oil absorbing capacity of at least 40 ml/100 g, more preferably at least 45 ml/100 g, most preferably at least 50 ml/100 g.Type: GrantFiled: October 24, 1997Date of Patent: July 20, 1999Assignee: The Procter & Gamble CompanyInventors: Peter Rutherford Brougham, George Burgess
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Patent number: 5919747Abstract: Preparation of secondary (2,3) alkyl sulfate particles comprises admixing secondary (2,3) alkyl sulfate surfactants with a deagglomerating agent such as zeolite or silica. The resulting powder is agglomerated with a nonionic surfactant, and formed into particles. The particles are then coated with a free-flow aid. Secondary (2,3) alkyl sulfate particles treated in this manner have improved solubility characteristics for use in laundry detergents.Type: GrantFiled: September 8, 1998Date of Patent: July 6, 1999Assignee: The Procter & Gamble CompanyInventors: Takashi Kazuta, Fukuji Ebihara
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Patent number: 5916866Abstract: In a process for making detergent tablets comprising spraying a coating of a water-soluble organic polymeric binder onto the exterior of particles of detergent composition containing detergent active and detergency builder and compacting the composition, the improvement comprises spraying an external coating of a film-forming water-soluble organic polymer onto the tablets. The coating on the tablet exterior reduces friability and abrasion and provides extra enhancement of strength while permitting disintegration/dissolution in a wash liquor.Type: GrantFiled: June 25, 1997Date of Patent: June 29, 1999Assignee: Lever Brothers Company, Division of Conopco, Inc.Inventors: Alan Phillip Davies, Sara Jane Edwards, Douglas Wraige
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Patent number: 5911838Abstract: Oil-based paint containing lead compounds, acrylic-based or other latex paint or a combination of paints in which acrylic-based or other latex paint covers an oil-based paint is removed from a substrate on which the paint is deposited by application of an aqueous solution thereto. The solution comprises a solvent that does not dissolve the oil-based paint and is compatible with water; a film former for retarding evaporation; a viscosity builder to fortify the solution and prevent slumping thereof during application to vertical and overhead horizontal surfaces; an alkaline compound for reacting with the pigment portion of the paint. Advantageously, the solution penetrates the deposited paint, which coagulates and separates from the substrate. Stripping procedures are facilitated, and neutralization of the substrate prior to repainting is avoided. A safe and effective treatment of materials covered with lead-containing paint is carried out in an economical, cost efficient manner.Type: GrantFiled: September 18, 1997Date of Patent: June 15, 1999Inventor: Irvin Barnett
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Patent number: 5908823Abstract: A microporous crystalline material named zeolite A-LSX having, in its anhydrous form, an oxides molar composition corresponding to formula (I):(M.sub.2/n O+M'.sub.2/n O).Al.sub.2 O.sub.3.zSiO.sub.2 (I)in which:M and M', identical or different, represent a cation of an alkali or alkaline earth metal of valency n;z is a number between 2.1 and 2.6, extremes included.Said microporous crystalline material can be used as a builder in detergent systems.Type: GrantFiled: June 26, 1997Date of Patent: June 1, 1999Assignee: Condea Augusta S.p.A.Inventors: Agostino Zatta, Pier Domenico Mattioli, Maria Roberta Rabaioli, Pierino Radici, Rosario Aiello, Fortunato Crea
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Patent number: 5900399Abstract: A tablet composition containing 2% to 100% by weight of amorphous crystalline or partly crystalline layer-form sodium silicates corresponding to the formula Na.sub.2 Si.sub.x --O.sub.2x+1.yH.sub.2 O wherein x is a number of 1.9 to 4 and y is a number of 0 to 20, with the proviso that the tablet composition only contains water in a quantity such that the maximum theoretical water-binding capacity of the components of the composition is not exceeded.Type: GrantFiled: October 10, 1996Date of Patent: May 4, 1999Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Wolfgang Seiter, Dieter Jung, Otto Koch, Birgit Stevermann
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Patent number: 5883070Abstract: A process for making a stabilized aqueous zeolite suspension involving: (a) providing an aqueous zeolite suspension; (b) providing at least one nonionic sugar surfactant; (c) providing at least one electrolyte; and (d) adding the sugar surfactant and electrolyte to the aqueous zeolite suspension to form a stabilized aqueous zeolite suspension.Type: GrantFiled: October 8, 1997Date of Patent: March 16, 1999Assignee: Henkel CorporationInventors: Allen D. Urfer, Virginia Lazarowitz
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Patent number: 5858959Abstract: Glassy particles containing agents useful for laundry and cleaning products (preferably perfumes, bleaching agents, soil release polymers), and laundry and cleaning products containing these glassy particles. The particles comprise a glass derived from one or more at least partially water-soluble hydroxylic compounds, such as hydrogenated starch hydrolysates, sucrose, glucose, and starch hydrolysates. The glassy particle also has a hygroscopicity value of less than about 80%.Type: GrantFiled: August 29, 1997Date of Patent: January 12, 1999Assignee: Procter & Gamble CompanyInventors: Athanasios Surutzidis, Michael Jude LeBlanc
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Patent number: 5854198Abstract: In order to enhance the stability of sodium percarbonate bleach in particulate detergent compositions, crystalline aluminosilicate and a water-soluble alkali metal silicate in an amount of from 1-20% by weight based on the aluminosilicate are included in the non-spray dried base powder. In order to obtain the stabilizing effect, the crystalline aluminosilicate comprises zeolite MAP or the alkali metal silicate is homogeneously dispersed with respect to the aluminosilicate.Type: GrantFiled: March 14, 1997Date of Patent: December 29, 1998Assignee: Lever Brothers Company, Division of Conopco, Inc.Inventors: Peter Willem Appel, Theodorus Johannes Arts, Jelles Vincent Boskamp, Andrew Paul Chapple, Fredericus Cornelis Dobbe, Christophe Michel Joyeux, Carolyn Angela Lanceley, Edwin Leo Lempers, Theo Jan Osinga
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Patent number: 5821207Abstract: The method for producing a fine solid builder particle includes the steps of suspending a solid builder in a dispersion medium containing 20 to 100% by weight of a surfactant, and carrying out wet grinding of the solid builder. The builder composition containing the fine solid builder particle is obtainable by the above method. The detergent composition containing the fine solid builder particle is obtainable by the method. The method for producing a detergent composition includes the steps of carrying out wet grinding of a solid builder using a dispersion medium containing a surfactant to give a mixture of a fine solid builder particle and the surfactant, and further adding the mixture to a composition for a detergent.Type: GrantFiled: December 11, 1996Date of Patent: October 13, 1998Assignee: Kao CorporationInventors: Hiroyuki Kanai, Mikio Sakaguchi, Shu Yamaguchi
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Patent number: 5814596Abstract: The present invention provides a structured paste which is substantially free of LAS and which is suitable for processing into a high bulk density, high active granular detergent. Surfactant pastes of the present invention have a viscosity of at least 10 Pa.s (measured at 70.degree. C. and 25 sec.sup.-1) and comprise: from 30% to 90% by weight of anionic surfactant; from 0% to 50% by weight of nonionic surfactant; from 0.5% to 20% by weight of either a polymeric cationic material or a polar amino acid; and from 1% to 40% by weight of water.Type: GrantFiled: February 24, 1997Date of Patent: September 29, 1998Assignee: The Procter & Gamble CompanyInventors: Yousef Georges Aquad, Brian Joseph Pangrle, Johan Gerwijn L. Pluyter
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Patent number: 5814289Abstract: Cogranulates of high bulk density which easily disintegrate in water and comprise aluminosilicates and crystalline sodium silicates having a layered structure. The aluminosilicates contained therein are those of the formulaM.sub.2/n O.Al.sub.2 O.sub.3. XSiO.sub.2. yH.sub.2 Oin which M is an alkali metal or alkaline earth metal, n indicates the valency of the cation, x is.gtoreq.2 and y has a value of between 0 and 8. The sodium silicates have an SiO.sub.2 /Na.sub.2 O ratio of (1.8 to 4.2):1. These cogranulates are prepared by mixing the pulverulent aluminosilicates and sodium silicates with one another and introducing the mixture into a zone in which it is compacted between two rolls rotating in opposite directions to form a compact. After comminution of the compact, the desired particle sizes are finally separated off from the oversize and undersize material. The cogranulates can be used in detergents and cleaning agents.Type: GrantFiled: July 30, 1996Date of Patent: September 29, 1998Assignee: Hoechst AktiengesellschaftInventors: Alexander Tapper, Gunther Schimmel, Gerd Wingefeld, Hans-Peter Rieck
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Patent number: 5798328Abstract: A detergent composition containing surfactants selected from anionic, cationic, nonionic, amphoteric and zwitterionic surfactants and a builder component containing 40% to 80% by weight of amorphous alkali metal silicates and 10% to 40% by weight of alkali metal carbonates in the form of a compound, with the proviso that the alkali metal carbonate content is always greater than the alkali metal silicate content, and at most 25% by weight of water, and wherein the compound does not have a homogeneous surface nor a uniform particle size distribution.Type: GrantFiled: August 22, 1996Date of Patent: August 25, 1998Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Beatrix Kottwitz, Joerg Poethkow, Horst Upadek
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Patent number: 5776893Abstract: A crystalline hydrated layered sodium and potassium silicate/amorphous sodium and potassium silicate composite material with predetermined hardness ion sequestration properties is achieved by controlling the process for forming the material. The process for producing the crystalline hydrated layered sodium and potassium silicate/amorphous is sodium and potassium silicate composite comprises hydrolyzing DB-1 crystalline sodium and potassium silicate glasses as a precursor material to produce the composite material known as DB-2. Hydrolysis of the DB-1 precursor material is achieved by adding typically up to 100.0 milliequivalents per gram of H.sub.3 O.sup.+ ions or up to 50 milliequivalents per gram of OH.sup.- ions. The resulting DB-2 material can sequester CA.sup.2+ ions, Mg.sup.+ ions, or both, depending on the results desired, processing conditions, and starting materials used.Type: GrantFiled: June 6, 1995Date of Patent: July 7, 1998Assignee: PQ CorporationInventors: Eric Von Rehren Borgstedt, Raymond P. Denkewicz, Jr.
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Patent number: 5773401Abstract: Laundry detergent compositions comprise at least 10% detergent surfactant or at least 10% detergent builder system. The detergent builder system comprises a copolymer of maleic acid and acrylic acid having a molecular weight of from 5,000 to 15,000 and a mole ratio of acrylic units to maleic units of from about 3:7 to 7:3. The copolymer has an Index Ratio (IR) of not less than 110, wherein IR=Binding Index (BI).times.Dispersing Index (DI)100.Type: GrantFiled: February 28, 1997Date of Patent: June 30, 1998Assignee: The Procter & Gamble CompanyInventors: Susumu Murata, David Johnathan Kitko, Toshiko Shigematsu
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Patent number: 5762647Abstract: A method of laundering soiled fabrics comprises contacting the fabrics in an aqueous laundering solution with a granular detergent composition comprising at least about 1% by weight of a surfactant, at least about 1% by weight of a builder, from about 6% to about 9% by weight of a particulate foam control agent, from about 1% to about 5% by weight of bleach activator, from about 0.3% to about 7% by weight of a peroxygen bleaching agent and from about 0.05% to about 0.2% by weight of a cellulase enzyme, wherein the detergent composition produces the low level of foam required for optimal cleaning in washing machines employing a low water wash process.Type: GrantFiled: September 16, 1996Date of Patent: June 9, 1998Assignee: The Procter & Gamble CompanyInventors: Donald R. Brown, Patti J. Kellett, Wendell I. Norman, Richard T. Owen, Ronald A. Swift
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Patent number: 5756445Abstract: A granular detergent component having a bulk density of less than 400 g/l comprises from 20% to 50%, by weight, of aluminosilicate, optionally up to 50%, by weight, of a co-filler, and 0.05% to 2%, by weight, of anionic surfactant, preferably C14-C20 alkyl sulphate. The low bulk density component is preferably mixed with other components such as percarbonate, silicate, layered silicate, carbonate, bicarbonate, sesquicarbonate, sulphate, citrate and mixtures thereof to provide a granular detergent composition.Type: GrantFiled: July 30, 1996Date of Patent: May 26, 1998Assignee: The Proctor & Gamble CompanyInventors: Andrew Dorset, Robin Gibson Hall
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Patent number: 5756440Abstract: A disinfectant and cleansing composition is provided in the form of an extruded solid. The active agent in the composition is a halogen-releasing agent such as a halogenated 5,5-dialkylhydantoin. An inert binder such as a fatty acid salt or a hectoritic clay is used to enable manufacture of the composition using an extrusion process. Fragrance, colorants, and other pressure-sensitive materials may be included; fragrance and colorants are preferably incorporated in encapsulated form. Methods for manufacturing the compositions are also provided, as are methods for using the compositions in sanitizing water, particularly in disinfecting and cleansing flush toilets.Type: GrantFiled: May 27, 1997Date of Patent: May 26, 1998Assignee: The Clorox CompanyInventors: Erika Watanabe, Vincent N. DeMaso
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Patent number: 5739093Abstract: Laundry detergent compositions containing a detergent surfactant, a detergent builder, and from about 0.1% to about 50% by weight ethylene aspartate cysteate sequestrants or its acid form are disclosed. These compositions provide enhanced removal of organic stains, such as food and beverage stains particularly polyphenolic stains such as wine, blueberry, tea, coffee, morello juice and the like.Type: GrantFiled: February 26, 1997Date of Patent: April 14, 1998Assignee: Lever Brothers Company, Division of Conopco, Inc.Inventors: Eddie Nelson Gutierrez, Shang-Ren Wu, Robert Charles Vermeer
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Patent number: 5739098Abstract: A crystalline silicate material containing both sodium and potassium cations within the crystalline matrix. Wherein the material is SiO.sub.2 /(xNa.sub.2 O+yK.sub.2 O)=Z where x+y=1, 0.75<x<1.0 (and therefore 0.0<y<0.25), and 1.3.ltoreq.Z.ltoreq.3.22. The material possesses predetermined superior hardness ion sequestration properties determined by the composition and processing of the material. The material can be made by any one of several processes which are also set forth.Type: GrantFiled: July 5, 1994Date of Patent: April 14, 1998Assignee: PQ CorporationInventors: Raymond P. Denkewicz, Jr., Eric von Rehren Borgstedt
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Patent number: 5736501Abstract: The method for producing nonionic detergent granules includes the steps of (I) blending the following (i) to (iii): (i) at least one of a nonionic surfactant and an aqueous nonionic surfactant solution; (ii) an acid precursor of an anionic surfactant capable of having a lamellar orientation; (iii) at least one of an alkali builder and an alkali, porous oil-absorbing carrier, to give a mixture of detergent starting materials containing the nonionic surfactant as a main surfactant component; and (II) heating the mixture obtained in step (I) at least up to a temperature capable of neutralizing the acid precursor of the anionic surfactant in an agitating mixer, and granulating while tumbling the agitating mixer thereby increasing a bulk density, to give nonionic detergent granules having a bulk density of from 0.6 to 1.2 g/ml.Type: GrantFiled: July 24, 1995Date of Patent: April 7, 1998Assignee: Kao CorporationInventors: Hiroyuki Yamashita, Koji Toyoda, Masaaki Sakaue, Yasuji Yamada, Teruo Kubota, Hiroshi Kogurusu
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Patent number: 5733862Abstract: A process for preparing high density detergent agglomerates having a density of at least 650 g/l is provided. The process comprises the steps of: (a) continuously mixing a detergent surfactant paste and dry starting detergent material into a high speed mixer/densifier to obtain detergent agglomerates, wherein said surfactant paste includes, by weight of said surfactant paste, from about 0.1% to about 50% of a non-aqueous binder, from about 70% to about 95% of a detersive surfactant, and the balance water; (b) mixing the detergent agglomerates in a moderate speed mixer/densifier to further density and agglomerate the detergent agglomerates; and (c) drying said detergent agglomerates so as to form the high density detergent composition. The process may include one or more additional processing steps such as adding a coating agent after the moderate speed mixer/densifier to facilitate and control agglomeration.Type: GrantFiled: March 17, 1997Date of Patent: March 31, 1998Assignee: The Procter & Gamble CompanyInventors: Scott William Capeci, David Robert Nassano
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Patent number: 5723428Abstract: Particulate high bulk density non-spray-dried detergent compositions containing organic non-soap surfactant, zeolite builder and fatty acid soap as powder structurant, prepared by non-tower mixing and granulation processes involving in-situ neutralization of fatty acid to soap with aqueous sodium hydroxide, can suffer from localized particle yellowing on storage when perfume and/or fluorescer are present, due to the presence of areas of high alkalinity. Yellowing is reduced without loss of powder structuring if a defined, less than stoichiometric amount of sodium hydroxide is used for the fatty acid neutralization. Surprisingly, in bleaching powders improved bleach stability is also observed. The resulting powder can be defined in terms of a low "basic sodium" content.Type: GrantFiled: May 2, 1996Date of Patent: March 3, 1998Assignee: Lever Brothers CompanyInventors: Jelles Vincent Boskamp, Timothy Richard Bundy, Marilena Coruzzi, Pauline Farnworth, Mark Phillip Houghton, Christophe Joyeux, Peter Cory Knight, Leandre Naddeo, Alistair Richard Sanderson
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Patent number: 5714445Abstract: The present invention relates to compositions and articles such as catamenials, diapers, pantiliners, paper towels, tissues, underarm shields, etc., which minimize odor caused from body fluids through the incorporation of an effective amount of cyclodextrin, having a particle size of less than 12 microns. Combinations of small particle size cyclodextrins with other odor-controlling materials are also disclosed.Type: GrantFiled: September 12, 1996Date of Patent: February 3, 1998Assignee: The Procter & Gamble CompanyInventors: Toan Trinh, Dean Van Phan
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Patent number: 5712242Abstract: A free-flowing granular detergent component or composition having a bulk density of at least 650 g/l comprises (i) at least 35% by weight of anionic surfactant; (ii) 0.5% to 10% by weight of a chelating agent; (iii) 0.5% to 30% by weight of a polymer or co-polymer wherein the weight ratio of chelating agent to polymer/copolymer is from 1:100 to 1:1. Additionally, processes for making the granular detergent component or composition comprise adding aqueous solutions of a chelating agent and a polymer or copolymer to a high active surfactant paste.Type: GrantFiled: December 11, 1995Date of Patent: January 27, 1998Assignee: The Procter & Gamble CompanyInventors: Yousef Georges Aouad, Jose Luis Vega, Adrian John Waynforth Angell
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Patent number: 5710119Abstract: A detergent composition comprising a surfactant system substantially free of linear alkyl benzene sulfonate and a copolymer of N-vinylimidazole and N-vinylpyrrolidone. The copolymer is present in the detergent composition in an amount of 0.01% to 10.0% by weight and has an average molecular weight of from 5,000 to 1,000,000. The molar ratio of N-vinylimidazole to N-vinylpyrrilidone in the copolymer is from 1:1 to 1:0.2.Type: GrantFiled: January 16, 1996Date of Patent: January 20, 1998Assignee: The Procter & Gamble CompanyInventors: Alfred Busch, Andre Christian Convents
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Patent number: 5710118Abstract: A detergent composition comprises clay, a surfactant system and a copolymer of N-vinylimidazole and N-vinylpyrrolidone. The copolymer is present in the detergent composition in an amount of 0.01% to 10.0% by weight. The copolymer has an average molecular weight of from 5,000 to 50,000 and a molar ratio of N-vinylimidazole to N-vinylpyrrolidone of from 1:1 to 1:02.Type: GrantFiled: January 16, 1996Date of Patent: January 20, 1998Assignee: The Procter & Gamble CompanyInventors: Alfred Busch, Andre Christian Convents, Petrus Johannes Leeuwen
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Patent number: 5707959Abstract: A process for preparing high density detergent compositions is provided. The process comprises the steps of: (a) continuously mixing a detergent surfactant paste and dry starting detergent material into a high speed mixer/densifier to obtain detergent agglomerates, wherein the ratio of the surfactant paste to the dry detergent material is from about 1:10 to about 10:1; (b) mixing the detergent agglomerates in a moderate speed mixer/densifier to further densify and agglomerate the detergent agglomerates; and (c) drying said detergent agglomerates so as to form the high density detergent composition. The dry detergent material may contain a builder material including a crystalline microstructure in which a carbonate anion, a calcium cation and at least one water-soluble cation are contained. The process may include one or more additional processing steps such as adding a coating agent such as the builder material described herein after the moderate speed mixer/densifier to facilitate and control agglomeration.Type: GrantFiled: March 13, 1996Date of Patent: January 13, 1998Assignee: The Procter & Gamble CompanyInventors: Eugene Joseph Pancheri, Scott William Capeci, Richard Thomas Owen
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Patent number: 5707958Abstract: A process for the preparation of a granular detergent composition or component having a bulk density of at least about 700 g/l up to a bulk density of about 1100 g/l comprising: (a) providing a low density, particulate detergent or component stock comprising an organic surfactant, a water-soluble inorganic salt and, optionally, other materials, the stock having a bulk density of no more than about 600 g/l; (b) subjecting the low density, particulate stock to high-shear agglomeration whereby the particulate stock is subjected to high-shear forces in intimate contact with a liquid consisting essentially of water in an amount and for a time sufficient (1) to fluidize, wet with water, and mechanically mill the stock to a smaller particle size and (2) to partially agglomerate the wetted, milled stock; (c) subjecting the partially agglomerated stock to rotating agglomeration for a time sufficient to produce, when dried, a further agglomerated, granular detergent composition or component having a bulk density of atType: GrantFiled: June 8, 1995Date of Patent: January 13, 1998Assignee: Colgate-Palmolive CompanyInventors: Gil Albarracin Mallari, Hans Jorgen Andresen, Joseph Raymond Schorle
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Patent number: 5705473Abstract: To provide a nonionic powdery detergent free from oozing of a liquid nonionic surfactant at ambient temperature and having excellent powder fluidity and non-caking properties and a solubility which is not deteriorated with time.The nonionic powdery detergent composition comprises (a) 12 to 35% by weight of a nonionic surfactant having a melting point of not higher than 40.degree. C. and an HLB in the range of 9.0 to 16.0,(b) 10 to 60% by weight of a crystalline aluminosilicate and(c) 5 to 20% by weight of an amorphous oil-absorbing carrier containing at least 30% by weight of silicon (in terms of SiO.sub.2) versus the weight of said carrier in an anhydrous state and having an oil-absorbing capacity of at least 80 ml/100 g, said carrier giving a dispersion with a pH of at least 9 or being soluble in a 2% aqueous NaOH solution in an amount of 0.5 g or below.Type: GrantFiled: April 22, 1994Date of Patent: January 6, 1998Assignee: KAO CorporationInventors: Mutsumi Kuroda, Hiroshi Ohtsuka, Hiroyuki Yamashita, Mikio Sakaguchi, Hiroyuki Kondo, Kouichi Hatano, Fumio Sai
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Patent number: 5703037Abstract: A process for the manufacture of free flowing detergent granules having a bulk density of at least 600 g/l, comprises the steps of:a) neutralising anionic surfactant acid or acids in an excess of alkali to form a paste, and optionally mixing other surfactants with the paste, to give a total surfactant level in the paste of at least 40% by weight;b) mixing said paste with one or more powders to form a granular product; andc) optionally drying the granular product,wherein at least one of the powders in step b) is spray dried and comprises anionic polymer and cationic surfactant.Type: GrantFiled: October 18, 1996Date of Patent: December 30, 1997Assignee: The Procter & Gamble CompanyInventors: Achille Jules Edmond Doumen, Luc Goovaerts, Jose Luis Vega
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Patent number: 5700294Abstract: Unique detergent compositions include a calcium precipitate-scavenging amount of an amorphous alkali metal silicoaluminate, advantageously are devoid of phosphate and zeolite values, and typically comprise at least one amorphous alkali metal silicoaluminate, an alkali metal carbonate, and at least one inhibitor of the crystal growth of calcium carbonate, such alkali metal carbonate being present in ionic calcium-removing amounts.Type: GrantFiled: January 11, 1996Date of Patent: December 23, 1997Assignee: Rhone-Poulenc ChimieInventors: Patrick Boittiaux, Virginie Couvret, Daniel Joubert
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Patent number: 5698508Abstract: A powdered detergent composition comprising a nonionic surfactant as the main surfactant, which comprises (a) a polyoxyethylene alkyl ether, wherein the alkyl group has 10 to 20 carbon atoms on the average and the average molar number of ethylene oxide added is 5 to 15, in an amount of 12 to 35% by weight based on the total weight of the composition, (b) a lipolytic enzyme in such an amount that the lipolytic activity per gram of component (a) would be 0.1 to 500 LU, (c) an anionic surfactant in an amount of 1.0 to 7.0% by weight based on the total weight of the composition and (d) an alkaline material in an amount of 5 to 35% by weight based on the total weight of the composition, and of which a 0.1% by weight aqueous solution has a pH exceeding 9.0, is excellent in detergency on oily soils such as subum soil.Type: GrantFiled: December 22, 1995Date of Patent: December 16, 1997Assignee: Kao CorporationInventors: Masafumi Nomura, Atsushi Tanaka, Eiichi Hoshino
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Patent number: 5696074Abstract: Liquid crystalline aqueous surfactant compositions containing alkyl glycosides, long-chain alcohols, and, optionally, anionic surfactants; and to finished products containing them.Type: GrantFiled: December 18, 1995Date of Patent: December 9, 1997Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Dieter Nickel, Rainer Hofmann, Manfred Weuthen
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Patent number: 5696072Abstract: A paint-stripper composition is described which comprises a mixture of(A) from about 5% to about 90% by weight of at least one organic solvent selected from the group consisting of benzyl alcohol, alkyl-substituted benzyl alcohols, furfuryl alcohol, alkyl-substituted furfuryl alcohol and acetylenic alcohols containing from 3 to about 5 carbon atoms;(B) from about 0.05% to about 5% by weight of at least one inorganic clay thickener;(C) from about 0.05% to about 5% by weight of at least one organic thickener; and(D) up to about 94.9% by weight of water.A method of stripping paint from a surface also is described, and the method comprises(A) contacting the paint with a paint stripper composition as described above; for a period of time sufficient to reduce the adhesion of the paint to the surface; and(B) removing said paint and paint-stripper composition from said surface.Type: GrantFiled: September 19, 1995Date of Patent: December 9, 1997Assignee: McGean-Rohco, Inc.Inventors: Ara Z. Nercissiantz, Harvey Hans
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Patent number: 5691294Abstract: Detergent components or compositions having a bulk density of at least 700 g/l comprise a nonionic surfactant system including at least one nonionic surfactant which is a liquid at temperatures below 40.degree. C., and from about 0.5% to 15% by weight of the component or compositions of a flow aid which is a premixed powder comprising sodium aluminosilicate and hydrophobic silica in a weight ratio of from 100:1 to 5:1. The detergent components or compositions are made by free dispersion mixing or granulation.Type: GrantFiled: December 11, 1995Date of Patent: November 25, 1997Assignee: The Procter & Gamble CompanyInventors: Paul Amaat Raymond Gerard France, Paul Irma Albertus Van Dijk
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Patent number: 5691297Abstract: A process for continuously preparing high density detergent composition is provided. The process comprises the steps of: (a) agglomerating a detergent surfactant paste and dry starting detergent material in a high speed mixer/densifier to obtain agglomerates having a Dispersion Index in a range of from about 1 to about 6, whereinDispersion Index=A/BA is the surfactant level in the agglomerates having a particle size of at least 1100 microns, and B is the surfactant level in the agglomerates having a particle size less than about 150 microns; (b) mixing the agglomerates in a moderate speed mixer/densifier to further densify, build-up and agglomerate the agglomerates; and (c) conditioning the agglomerates such that the flow properties of the agglomerates are improved, thereby forming the high density detergent composition.Type: GrantFiled: September 19, 1995Date of Patent: November 25, 1997Assignee: The Procter & Gamble CompanyInventors: David Robert Nassano, Scott William Capeci
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Patent number: 5691296Abstract: A process for making a granular detergent composition comprising the steps of adding to a detergent powder particles of percarbonate having a mean particle size in the range of from 250 to 900 micrometers and a powdery flow aid containing a partially hydrated crystalline sodium aluminosilicate having a moisture content of less than 15%, preferably from 5% to 12%.Type: GrantFiled: January 16, 1996Date of Patent: November 25, 1997Assignee: The Procter & Gamble CompanyInventors: Joseph Thomas Henry Agar, Paul Amaat Raymond G. France, Carole Patricia D. Wilkinson
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Patent number: 5683976Abstract: Flowable granular carpet cleaning compositions which do not contain borax or boric acid salts and which are readily shaken or strewn onto a carpet needing cleaning is disclosed. The compositions comprise as essential constituents: comminuted cellulose, zeolite, a inorganic salt system comprising of an (a) alkali metal carbonate, (b) an alkali metal bicarbonate, and an (c) alkali metal sesquicarbonate wherein the ratios of (a):(b):(c) is 1:0.5-2.5:0.5-2.5, one or more organic solvents, an organic or inorganic acid, anionic surfactant, and, water.Type: GrantFiled: February 7, 1996Date of Patent: November 4, 1997Assignee: Reckitt & Colman Inc.Inventors: Andrew F. Colurciello, Jr., Jeanne M. Weller
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Patent number: 5665692Abstract: A process wherein the particle size of high density detergent agglomerates produced via agglomeration of a high active surfactant paste can be effectively and inexpensively controlled. More particularly, the process invention includes the step of regulating the level of carbonate in a highly active surfactant paste which is combined with other detergent ingredients in an agglomeration process. The agglomeration process also includes the step of treating the surfactant paste and other detergent ingredients in a high speed mixer/densifier followed by a low or moderate speed mixer/densifier resulting in detergent agglomerates.Type: GrantFiled: July 25, 1996Date of Patent: September 9, 1997Assignee: The Procter & Gamble CompanyInventor: George John Kaminsky
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Patent number: 5665691Abstract: A process for continuously preparing low density detergent agglomerate is provided. The process comprises the steps of: (a) agglomerating a detergent surfactant paste and dry starting detergent material in a high speed mixer to obtain detergent agglomerates, wherein the dry starting detergent material includes a hydrated salt; and (b) drying the detergent agglomerates so as to form the detergent composition having a density of less than about 600 g/l.Type: GrantFiled: October 4, 1995Date of Patent: September 9, 1997Assignee: The Procter & Gamble CompanyInventors: Paul Amatt France, Larry Rudolph Genskow, Wayne Edward Beimesch