Polyoxyalkyene Containing Surfactant Devoid Of Covalently Bonded Anionic Substituents Patents (Class 510/289)
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Patent number: 6140288Abstract: An improvement is described in all purpose liquid cleaning composition which are especially effective in the removal of oily and greasy soil containing a nonionic surfactant, a liquid crystal suppression additive and water.Type: GrantFiled: December 15, 1999Date of Patent: October 31, 2000Assignee: Colgate Palmolive CompanyInventors: Patrick Durbut, Guy Broze
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Patent number: 6131421Abstract: A system for dry cleaning soils from fabrics comprising densified carbon dioxide and a surfactant in the densified CO.sub.2. The densified carbon dioxide is in a temperature range of about -78.5.degree. C. to about 100.degree. C. and a pressure range of about 14.7 to about 10,000 psi. At least 0.1% by volume of a modifier is preferably present. The surfactant has a polysiloxane, a branched polyalkylene oxide or a halocarbon group which is a functional CO.sub.2 -philic moiety connected to a CO.sub.2 -phobic functional moiety. The surfactant either exhibits an HLB of less than 15 or has a ratio of siloxyl to substituted siloxyl groups of greater than 0.5:1.Type: GrantFiled: September 2, 1999Date of Patent: October 17, 2000Assignee: Lever Brothers Company, Division of Conopco, Inc.Inventors: Sharon Harriott Jureller, Judith Lynne Kerschner, Dennis Stephen Murphy
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Patent number: 6114295Abstract: A system for dry cleaning soils from fabrics is described which contains densified carbon dioxide combined with a selected surfactant. The densified carbon dioxide is used in a temperature range of about -78.5.degree. C. to about 100.degree. C. and a pressure range of about 14.7 psi to about 10,000 psi. The surfactant is selected from one of two groups of compounds having a formula ##STR1## as described in the text or a second group of siloxane compounds having a formula [AB].sub.y as described. A process for using the dry cleaning system is also described.Type: GrantFiled: September 2, 1999Date of Patent: September 5, 2000Assignee: Lever Brothers CompanyInventor: Dennis Stephen Murphy
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Patent number: 6086634Abstract: This invention relates to dry-cleaning systems which include dry-cleaning compositions which contain polysulfonic acid and water, and a bag for the cleaning and containment of soiled fabric articles. The invention also relates to methods of using the dry-cleaning system and dry-cleaning composition.Type: GrantFiled: August 4, 1997Date of Patent: July 11, 2000Assignee: Custom Cleaner, Inc.Inventor: James A. Smith
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Patent number: 6042617Abstract: The present invention comprises a dry cleaning system and method, in which dry cleaning machinery is used in conjunction with a specific solvent which is derived from an organic/inorganic hybrid (organo silicone). In this class of organo silicones is a group known as cyclic siloxanes. Such cyclic-siloxane-based solvent allows the system to result in an environmentally friendly process which is, also, more effective in cleaning fabrics and the like than any known prior system. The siloxane composition is employed in a dry cleaning machine to carry out the method of the invention. In order to enhance the cleaning capabilities of the cyclic-siloxane-based solvent, such solvent is modified with a chemical that is selected from the group of chemicals including 2-ethylhexyl acetate, esters, alchohols, and ethers.Type: GrantFiled: May 3, 1999Date of Patent: March 28, 2000Assignee: GreenEarth Cleaning, LLCInventor: Wolf-Dieter R. Berndt
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Patent number: 6043205Abstract: A cleansing composition and method of use are disclosed for cleansing a quantitatively aspirating sampling probe in an automated hematological analyzer. The cleansing composition is formulated to cleanse instantaneously on contact, and practically eliminates carry-over of hematological sample material, assaying reagents or of the cleansing composition itself. The cleansing composition is an acidic aqueous solution of pH 5.0 or less, including (1) a substance having a primary amino group; and (2) one or more nonionic surfactants selected from the group consisting of polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene alkyl ester and polyoxyethylene sorbitan ester.Type: GrantFiled: September 29, 1998Date of Patent: March 28, 2000Assignee: Sysmex CorporationInventors: Susumu Hoshiko, Miki Miyaji
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Patent number: 6039766Abstract: A process for dry cleaning using a cleaning composition for dry cleaning which includes 1 to 90% by weight of a surfactant containing fluorine and 10 to 99% by weight of a fluorohydrocarbon solvent and/or an auxiliary solubilizing agent, the surfactant containing fluorine being a salt of a phosphoric acid ester of a polyoxyalkylenealkylsulfonamide ether containing fluorine.Type: GrantFiled: October 19, 1998Date of Patent: March 21, 2000Assignee: Nicca Chemical Co., Ltd.Inventors: Yuhei Mizuno, Yoshihiro Kawamura, Shiro Kondo
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Patent number: 6028048Abstract: Detergent compositions comprising aminodicarboxylic acid-N,N-dialkanoic acid or its salt (component A) and a synthetic surface active agent having microbial degradability (component B).In particular, in the case where an alkali salt of polyoxyalkylene alkylether acetic acid or alkyl polyglycoside is used as the surface active agent (component B), the detergent compositions exhibit excellent washing effect without forming metallic soap even in washing water with high hardness, and also show high solubility even under the condition of low water temperature, and have excellent microbial degradability. Thus, the detergent compositions are particularly suitable for washing fabrics. Further, in the case where synthetic anionic and/or nonionic surface active agent is used as the surface active agent (component B), influence of corrosion to light metals is small.Type: GrantFiled: December 31, 1997Date of Patent: February 22, 2000Assignees: Daisan Kogyo Co., Ltd., Showa Denko K.K.Inventors: Chie Takahashi, Kouji Yanagihara, Kyoko Morikawa, Hiroshi Saito, Norio Arai, Makoto Saito, Tohru Yamamoto
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Patent number: 6024767Abstract: A dryer dry cleaning and freshening system is provided with a containment bag, a dispenser means impregnated with liquid cleaning composition, and a absorber capable of absorbing loose particles and excess cleaning composition A process for cleaning a garment is also provided. The system and process may be used in a home clothes dryer for dry cleaning.Type: GrantFiled: June 18, 1996Date of Patent: February 15, 2000Assignee: Reckitt & Colman Inc.Inventors: Josephine Telesca, Jeanne Marie Weller, Frank Anthony Lucia, III, Tracy Ann Ryan, Robert Henry Buckenmayer, Walter Ronald Paul, Ashwinkumar C. Gandhi
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Patent number: 6010540Abstract: A dry cleaning and freshening system is provided including a containment bag, a single unit dispenser having dispensing means, a container, and absorbing means. The container is adapted to contain a quantity of liquid cleaning composition. The single unit dispenser and absorber means includes a dispensing part with absorbent material and a container for holding liquid cleaning composition and a retaining part of absorbent material capable of entraining loose particles and/or absorbing excess liquid cleaning composition. The liquid cleaning composition may include a fragrance composition. In a preferred embodiment the single unit dispenser and absorber means may be in the form of a ball with two hemispheres that split and may be screwed together. The single unit dispenser and absorber means may be used in a home clothes dryer for dry cleaning.Type: GrantFiled: June 18, 1996Date of Patent: January 4, 2000Assignee: Reckitt & Colman Inc.Inventors: Josephine Telesca, Frank Anthony Lucia, III
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Patent number: 5977045Abstract: A system for dry cleaning soils from fabrics is described which contains densified carbon dioxide combined with a selected surfactant. The densified carbon dioxide is used in a temperature range of about -78.5.degree. C. to about 100.degree. C. and a pressure range of about 14.7 psi to about 10,000 psi. The surfactant is selected from one of two groups of compounds having a formula ##STR1## as described in the text or a second group of siloxane compounds having a formula [AB].sub.y as described. A process for using the dry cleaning system is also described.Type: GrantFiled: May 6, 1998Date of Patent: November 2, 1999Assignee: Lever Brothers CompanyInventor: Dennis Stephen Murphy
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Patent number: 5972869Abstract: A mildly acidic laundry detergent composition is provided for the improved protection of fine fabrics during washing and enhanced removal of generated foam during rinsing in hand wash comprising:a) at least one anionic surfactant; and/orb) at least one nonionic surfactant;c) a rinse-active, pH-sensitive foam control agent comprising a fatty acid; whereby the fatty acid foam control agent remains substantially in acid form at the mildly acidic pH of the wash water so as to be essentially inoperative to suppress foam during washing, and whereby upon rinsing of the laundry with tap water having a pH of from about 7.5 to 8.5 at least of portion of said fatty acid is converted to a soap which functions to suppress foam during rinsing.Type: GrantFiled: December 17, 1996Date of Patent: October 26, 1999Assignee: Colgate-Palmolive CoInventors: Hoai-Chau Cao, Marie-Christine Houben, Patricia Pagnoul
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Patent number: 5968204Abstract: Sheets capable of developing a positive electostatic charge are used for a variety of surface cleaning operations. Polyester fabric, non-woven and chemically bonded with an acrylic latex is used to dust surfaces, to clean clothes, furniture and carpets. A light solvent such as isopropanol can be used with the sheets to loosen gummy soils. In one mode, the sheets are used in a hot air clothes dryer to remove soils and detritus from garments. Processes for cleaning a variety of fabric and hard surfaces are conducted using the sheets.Type: GrantFiled: August 7, 1998Date of Patent: October 19, 1999Assignee: The Procter & Gamble CompanyInventor: Rodney Mahlon Wise
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Patent number: 5951716Abstract: A containment bag 1 which may be used in home dry cleaning is made of textile with an impermeable finish and an interior capable of absorbing loose particles and soil. The containment bag 1 is used in a home dryer dry cleaning and freshening system. The textile of the containment bag 1 has a layer of woven or knit fabric with an impermeable coating and a soft, hairy layer on its interior. The inside of the containment bag 1 is prewetted with cleaning composition. Preferably a liquid cleaning composition is employed and the cleaning composition may include a fragrance composition. A process for cleaning a garment is also provided.Type: GrantFiled: June 18, 1996Date of Patent: September 14, 1999Assignee: Reckitt & Colman Inc.Inventors: Frank Anthony Lucia, III, Stephen Vito Dente, Tracy Ann Ryan, Michael Richard Tyerech, Anthony Domenic Sidoti, Stanislaw Kepka
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Patent number: 5942484Abstract: Phase stable liquid compositions comprise water, butoxy propoxy propanol and alkyl sulfate or alkyl ethoxy sulfate surfactants. The compositions are used to clean fabrics.Type: GrantFiled: April 30, 1997Date of Patent: August 24, 1999Assignee: The Procter & Gamble CompanyInventors: Timothy Clair Roetker, Ronald Anthony Masters, Michael Peter Siklosi
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Patent number: 5935919Abstract: An alkaline degreasing solution containing 0.01 to 3 g/l of alkali silicate calculated as Si concentration, and 0.01 to 10 g/l of a nonionic surfactant having an HLB value (=20.times.Mw/M, where Mw represents the weight of a hydrophilic group part and M represents the molecular weight of the surfactant) of 5 to 11 and a structure being expressed in the following general formula (I), with a pH value of at least 9.5:R--O--(EO).sub.m (AO).sub.n H (I)where R represents alkyl group, EO represents ethylene oxide group, AO represents alkylene oxide group (propylene oxide group and/or butylene oxide group), m represents an addition molar number of EO which is an integer of 3 to 7, n represents an addition molar number of AO which is an integer of 1 to 6, and m and n satisfy the relation of n<m .ltoreq.3n.Type: GrantFiled: December 17, 1998Date of Patent: August 10, 1999Assignee: Nippon Paint Co., Ltd.Inventors: Mitsuo Shinomiya, Minoru Ishida, Shoji Shiraishi, Tamotsu Sobata
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Patent number: 5925613Abstract: An alkaline degreasing solution containing 0.01 to 3 g/l of alkali silicate calculated as Si concentration, and 0.01 to 10 g/l of a nonionic surfactant having an HLB value (=20.times.Mw/M, where Mw represents the weight of a hydrophilic group part and M represents the molecular weight of the surfactant) of 5 to 11 and a structure being expressed in the following general formula (I), with a pH value of at least 9.5:R--O--(EO).sub.m (AO).sub.n H (I)where R represents alkyl group, EO represents ethylene oxide group, AO represents alkylene oxide group (propylene oxide group and/or butylene oxide group), m represents an addition molar number of EO which is an integer of 3 to 7, n represents an addition molar number of AO which is an integer of 1 to 6, and m and n satisfy the relation of n<m.ltoreq.3n.Type: GrantFiled: May 14, 1996Date of Patent: July 20, 1999Assignee: Nippon Paint Co., Ltd.Inventors: Mitsuo Shinomiya, Minoru Ishida, Shoji Shiraishi, Tamotsu Sobata
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Patent number: 5922669Abstract: Improved results are obtained in the no-rub cleaning of hard surfaces when the cleaner used in the process is an aqueous solution of (A) about 40-50% by weight of a nonionic surfactant mixture of an alcohol ethoxylate and a C.sub.8-16 alkyldimethylamine oxide in a weight ratio of about 5-15/1 and (B) correspondingly, about 60-50% by weight of one or more nitrogenous builders.Type: GrantFiled: September 10, 1997Date of Patent: July 13, 1999Assignee: Albemarle CorporationInventors: Deborah A. Quebedeaux, Conrad J. Langlois, Jr., Joe D. Sauer, Patrick C. Hu
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Patent number: 5916864Abstract: A laundry detergent composition is disclosed which comprises: (A) a nonionic surfactant represented by formula (1); (B) at least one cationic surfactant represented by formula (2) wherein the cationic surfactant has a whole iodine value of 40 to 100; (C) at least one sparingly water-soluble solvent selected from a solvent represented by formula (3) and a solvent represented by formula (4); and (D) at least one easily water-soluble solvent selected from a solvent represented by formula (5) and a solvent represented by formula (6).Type: GrantFiled: July 21, 1997Date of Patent: June 29, 1999Assignee: Sunstar Inc.Inventors: Tetsuya Fujino, Yumi Goto, Takenori Fukugaki, Yoshiaki Nakamura, Yuji Murakami
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Patent number: 5910474Abstract: The invention relates to a method for rinsing showers clean and for providing a pleasant sheen to shower surfaces without scrubbing or wiping by applying an aqueous composition which includes a non-ionic surfactant having an HLB less than 13, a chelating agent, and optionally, an alcohol.Type: GrantFiled: July 18, 1997Date of Patent: June 8, 1999Inventor: Robert H. Black
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Patent number: 5908473Abstract: Spot pretreatment compositions useful as stain cleaning compositions useful prior to a subsequent cleaning operation, including laundering or dry-cleaning. The spot cleaning compositions feature a major proportion of water, and minor amounts of nonionic surfactants, anionic surfactants, and organic solvents selected from alcohols and glycol ethers. The spot pretreatment compositions exhibit excellent stain dissolution characteristics. Processes for producing the spot cleaning compositions, and methods for their use are also disclosed.Type: GrantFiled: June 18, 1996Date of Patent: June 1, 1999Assignee: Reckitt & ColmanInventors: Jeanne Marie Weller, Frank Anthony Lucia, III, Stanislaw Kepka, Ashwinkumar C. Gandhi
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Patent number: 5880086Abstract: The invention relates to laundry softener concentrates comprisinga) 5-40% by weight of a cationic softening agent,b) 0.1-25% by weight of an ester of a C.sub.1 -C.sub.22 -carboxylic acid with a di-, tri- or tetrahydric alcohol having 2 to 10 carbon atoms,c) 0-10% by weight of a nonionic dispersing agent,d) 0-20% by weight of a polyglycol ande) water and if appropriate other customary auxiliaries corresponding to the balance to give 100% by weight,and furthermore the use thereof for the preparation of laundry softener emulsions and laundry softener emulsions comprising the laundry softener concentrate.Type: GrantFiled: February 2, 1998Date of Patent: March 9, 1999Assignee: Clariant GmbHInventors: Frank Weinelt, Hans-Jurgen Scholz, Manfred Schreiber
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Patent number: 5876461Abstract: Method includes the steps of (1) treating the textile with a predetermined amount of a non-durable sacrificial repellent material before putting the textile in service; (2) cleaning the textile with a mixture of a non-polar solvent and at least one cleaning additive to remove non-polar solvent soluble, insoluble and resistant contaminants from the textile; (3) washing the textile with a mixture of a polar solvent and at least one washing additive to remove polar solvent soluble contaminants from the textile; and (4) maintaining a predetermined amount of a non-durable sacrificial repellent material on the textile. The non-polar solvent may be perchloroethylene or the like, while the cleaning additive is a mixture of a dialkyl ketone, a carboxylic ester and a glycol ether. A second cleaning additive may be used to enhance contaminant removal. The polar solvent used is water, while the washing additive is a blend of surfactants.Type: GrantFiled: March 17, 1997Date of Patent: March 2, 1999Assignee: R. R. Street & Co. Inc.Inventors: Timothy L. Racette, James E. Schulte, Manfred Wentz
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Patent number: 5865851Abstract: Home dry cleaning compositions useful in dry-cleaning of textiles and garments in a non-commercial environment are disclosed. The cleaning compositions useful in conjunction with a a domestic dry cleaning operation the cleaning compositions are contacted with a soiled garment or textile during a tumbling such as is possible with a domestic clothes dryer. The cleaning compositions contain a major proportion of water, and further include minor amounts of a nonionic alkoxylated alcohol, anionic surfactant selected from alkyl sulfosuccinates, alkyl ether sulfosuccinates, alkylamide sulfosuccinates, alkyl sulfosuccinamates, as well as salt forms thereof, organic solvent selected from alcohols and glycol ethers, as well as optional constituents including fluorosurfactants, pH adjusting agents, fragrances, fragrance solubilizers, and preservatives.Type: GrantFiled: June 18, 1996Date of Patent: February 2, 1999Assignee: Reckitt & Colman Inc.Inventors: Anthony Domenic Sidoti, Michael Richard Tyerech, Tracy Ann Ryan, Frank Anthony Lucia, III, Jeanne Marie Weller
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Patent number: 5858022Abstract: A method for dry-cleaning articles such as fabrics and clothing in carbon dioxide comprises contacting an article to be cleaned with a liquid dry cleaning composition for a time sufficient to clean the fabric. The liquid dry-cleaning composition comprises a mixture of carbon dioxide, water, a surfactant, and an organic co-solvent. After the contacting step, the article is separated from the liquid dry cleaning composition. The method is preferably carried out at ambient temperature. The surfactant may be either one that contains a CO.sub.2 -philic group or one that does not contain a CO.sub.2 -philic group. The organic co-solvent is preferably an alkane that has a flash point above 140.degree. F.Type: GrantFiled: August 27, 1997Date of Patent: January 12, 1999Assignee: MiCell Technologies, Inc.Inventors: Timothy J. Romack, David F. Cauble, James B. McClain
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Patent number: 5854201Abstract: The invention relates to textile softener concentrates based on pentaerythritol and/or dipentaerythritol fatty acid partial esters. The dispersibility of such softener concentrates in cold water can be significantly improved by addition of a special emulsifier combination of quaternary ammonium compounds and nonionic compounds. The quaternary ammonium compounds are quaternized alkoxylated alkylamines and/or esterquats. Ethoxylated and/or propoxylated fatty acids or fatty acid esters and end-capped fatty alcohol polyglycol ethers are suitable nonionic emulsifiers.Type: GrantFiled: July 10, 1997Date of Patent: December 29, 1998Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Ansgar Behler, Guenther Uphues, Bernd Wahle, Peter Waltenberger, Almud Folge
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Patent number: 5827815Abstract: Carbonate built laundry detergents having improved cleaning properties and comprising an ethoxylated fatty alcohol nonionic surfactant, a sulfated ethoxylated fatty alcohol anionic surfactant, and an N-alkyl and/or unsaturated hydrocarbyl amine of an alkanoic acid or salt thereof as an amphoteric surfactant.Type: GrantFiled: April 29, 1997Date of Patent: October 27, 1998Assignee: Church & Dwight Co., Inc.Inventors: Francis R. Cala, Charles D. Carr, Bruce R. Conley
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Patent number: 5821216Abstract: Carbonate built laundry detergents having improved cleaning properties and comprising a sulfated ethoxylated fatty alcohol anionic surfactant and two ethoxylated fatty alcohol nonionic surfactants having different average numbers of carbon atoms in the fatty alcohol and average numbers of ethoxy groups.Type: GrantFiled: April 21, 1997Date of Patent: October 13, 1998Assignee: Church & Dwight Co., Inc.Inventors: Francis R. Cala, Charles D. Carr, Bruce R. Conley
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Patent number: 5798329Abstract: Liquid laundry detergent compositions provide good detergency for the cleaning of garments and textiles, as well as further providing a germicidal action to textile fabrics in a domestic laundering process.Type: GrantFiled: June 20, 1996Date of Patent: August 25, 1998Assignee: Reckitt & Colman Inc.Inventors: Timothy J. Taylor, Alan F. Richter
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Patent number: 5767051Abstract: A light duty liquid detergent with desirable cleansing properties and mildness to the human skin comprising: a nonionic surfactant, an alkali metal or ammonium salt of a C.sub.8-18 ethoxylated alkyl ether sulfate anionic surfactant, an amine oxide surfactant, a zwitterionic surfactant, an alkyl polyglucoside surfactant, and water.Type: GrantFiled: February 13, 1997Date of Patent: June 16, 1998Assignee: Colgate Palmolive CompanyInventors: Julien Drapier, Maria Galvez, Nicole Kerzmann, Gary Jakubicki
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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: 5733858Abstract: Solutions comprising at least one polyamino disuccinic acid and one or more polyamino monosuccinic acids are useful in gas conditioning (preferably as the iron chelate). The copper chelates are also useful in electroless copper plating. Another aspect of the invention includes the use of the aminosuccinic acid mixtures in laundry detergent compositions.Type: GrantFiled: August 29, 1996Date of Patent: March 31, 1998Assignee: The Dow Chemical CompanyInventors: David A. Wilson, Druce K. Crump
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Patent number: 5711764Abstract: A composition is provided for improving decolorizing and desizing garments and fabrics with a reducing agent in a washer. A surfactant is added so as to improve wet out and to reduce the surface tension of the water.Type: GrantFiled: October 3, 1996Date of Patent: January 27, 1998Inventor: Eric M. Wasinger
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Patent number: 5712237Abstract: The present invention relates to compositions and methods of removal of contaminants from textiles and related fabrics and garments utilizing compositions which pose no significant risk to groundwater and which are substantially biodegradable. Compositions according to the present invention are substantially non-toxic, substantially bio-degradable liquids at room temperature or higher and are effective in removing substantial quantities of contaminants from fabrics, especially including garments. The present compositions contain at least one dibasic ester, an alcohol, water and at least one surfactant.Type: GrantFiled: November 27, 1995Date of Patent: January 27, 1998Inventor: Edwin B. Stevens
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Patent number: 5683473Abstract: A method of dry cleaning fabrics using a dry cleaning system is described. The system comprises densified carbon dioxide, preferably in a liquid phase, and a selected surfactant which is soluble in the densified CO.sub.2. The surfactant has a polysiloxane, a branched polyalkylene oxide or a halocarbon group which is a functional CO.sub.2 -philic moiety connected to a CO.sub.2 -phobic functional moiety. The surfactant either exhibits an HLB of less than 15 or has a ratio of siloxyl to substituted siloxyl groups of greater than 0.5:1.Type: GrantFiled: August 20, 1996Date of Patent: November 4, 1997Assignee: Lever Brothers Company, Division of Conopco, Inc.Inventors: Sharon Harriott Jureller, Judith Lynne Kerschner, Rosemarie Harris
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Patent number: 5681355Abstract: A dry cleaning process is conducted in a hot air clothes dryer using a containment bag. The bag is constructed using heat resistant polymers, such as nylon, to avoid unanticipated hot spots in the dryer. The bag retains its integrity and can be re-used in subsequent dry cleaning operations.Type: GrantFiled: August 8, 1996Date of Patent: October 28, 1997Assignee: The Procter & Gamble CompanyInventors: Maxwell Gregory Davis, Bradford Scott Barron, Andrew Julian Wnuk, Julius Saslow
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Patent number: 5676705Abstract: A method of dry cleaning fabrics using a dry cleaning system is described. The system comprises densified carbon dioxide and a surfactant in the densified CO.sub.2. The surfactant has a polysiloxane, a branched polyalkylene oxide and a halocarbon group which is a functional CO.sub.2 -philic moiety connected to a CO.sub.2 -phobic functional moiety. The surfactant either exhibits an HLB of less than 15 or has a ratio of siloxyl to substituted siloxyl groups of greater than 0.5:1.Type: GrantFiled: March 6, 1995Date of Patent: October 14, 1997Assignee: Lever Brothers Company, Division of Conopco, Inc.Inventors: Sharon Harriott Jureller, Judith Lynne Kerschner, Myongsuk Bae-Lee, Lisa Del Pizzo, Rosemarie Harris, Carol Resch, Cathy Wada
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Patent number: 5584888Abstract: Bleaching compositions, laundry and automatic dishwashing detergent compositions comprising particular neutral or anionically charged substituted bleach activators are provided. More specifically, the invention relates to compositions which provide enhanced cleaning/bleaching benefits through the selection of perhydrolysis-selective bleach activators having specific leaving groups with a conjugate acid pK.sub.a above 13 and with specific ratios of the rate of perhydrolysis to the rate of hydrolysis and the rate of perhydrolysis to the rate of diacylperoxide production. Included are preferred activator compounds and methods for washing fabrics, hard surfaces, and tableware using the activators.Type: GrantFiled: August 31, 1994Date of Patent: December 17, 1996Inventors: Gregory S. Miracle, Alan D. Willey, Kevin L. Kott, Michael E. Burns
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Patent number: 5547476Abstract: A home dry cleaning process is provided. Thus, a carrier sheet releasably impregnated with solvents such as butoxy propoxy propanol, 1,2-octanediol as a wetting agent, water and an emulsifier is placed in a plastic bag with soiled garments and tumbled in a hot-air clothes dryer. The garments are cleaned and refreshed.Type: GrantFiled: October 17, 1995Date of Patent: August 20, 1996Assignee: The Procter & Gamble CompanyInventors: Michael P. Siklosi, Timothy C. Roetker