Patents Examined by Linda Skaling
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Patent number: 5571447Abstract: A stripping and cleaning composition is provided which contains a polyhydric alcohol, fluoboric acid, a fluorine containing compound and a polar solvent. The pH of the composition is less than 5. Also provided is a method of stripping and cleaning utilizing the compositions of the invention.Type: GrantFiled: March 20, 1995Date of Patent: November 5, 1996Assignee: Ashland Inc.Inventors: Irl E. Ward, Francis Michelotti, Leslie D. Molnar
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Patent number: 5567348Abstract: A detergent composition for precision parts or jigs includes (a) a hydrocarbon having a 10-18 carbon atoms,, (b) polyalkylene glycol C.sub.1 -C.sub.3 alkyl ether, and (c) a polyalkylene glycol C.sub.4 -C.sub.8 alkyl ether, wherein a weight ratio of component (a) to the sum of components (b) and (c), (a)/[(b)+(c)], is from 5/95 to 95/5, and a weight ratio of component (b) to component (c), (b)/(c), is from 5/95 to 95/5. The composition is excellent in removing smears such as fats and/or oils, machine oils, cutting oils, greases, liquid crystals, and/or rosin fluxes which have adhered to surfaces of precision parts or jigs. The present composition also exhibits excellent rinsability and high safety and is free of any fear of environmental pollution.Type: GrantFiled: February 28, 1995Date of Patent: October 22, 1996Assignee: Kao CorporationInventors: Masanori Nozawa, Eiji Kashihara
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Patent number: 5562857Abstract: Azeotropic compositions made up of from about 65 to about 81% by weight of 1,1,1,3,3-pentafluoropropane and from about 19 to about 35% by weight of 2-methyl butane have been found to be particularly useful as blowing agents for the production of polyurethane foams.Type: GrantFiled: December 22, 1995Date of Patent: October 8, 1996Assignee: Bayer CorporationInventors: Joachim Werner, Scott A. Kane, Charles E. Mortimer, Herman P. Doerge, Eric F. Boonstra
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Patent number: 5560860Abstract: A composition for reclaiming paint and volatile organic paint carrier from industrial paint spray booths without increasing VOCs has been developed. The improvement over the existing booths recirculating hydrophilic based fluids, is the inclusion of a water based solution containing about 10 to about 45 per cent by weight of one or more N-alkyl pyrrolidones, about 15 to 40 percent by weight of one or more alkyl glycol mono alkyl ethers, a surfactant present in the amount of about 0.1 to 2.0 percent by weight, and the balance water.Type: GrantFiled: January 11, 1995Date of Patent: October 1, 1996Assignee: BASF CorporationInventors: William C. Walsh, Lawrence E. James
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Patent number: 5560861Abstract: Azeotropic compositions include a perfluorinated alkane or alkene and an organic solvent.Type: GrantFiled: December 2, 1994Date of Patent: October 1, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Richard M. Flynn, Mark W. Grenfell, Frank W. Klink, Daniel R. Vitcak
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Patent number: 5558810Abstract: The present invention relates to compositions of pentafluoropropane and a fluorinated propane having from 1 to 5 fluorine atoms; a hydrocarbon having from 1 to 5 carbon atoms; 1,1,1,4,4,4-hexafluorobutane, (CF.sub.3).sub.2 CHCH.sub.3, dimethyl ether; or 1,1,1,2,3,4,4,5,5,5-decafluoropentane. The compositions, which may be azeotropic or azeotrope-like, may be used as refrigerants, cleaning agents, expansion agents for polyolefins and polyurethanes, aerosol propellants, refrigerants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents or displacement drying agents.Type: GrantFiled: November 16, 1994Date of Patent: September 24, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventors: Barbara H. Minor, Tuneen E. C. Chisolm
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Patent number: 5552074Abstract: Refrigerant compositions include mixtures of bis(difluoromethyl) ether and a second component wherein the second component is 1-trifluoromethoxy-1,1,2,2-tetrafluoroethane, difluoromethoxy pentafluoroethane, 1-trifluoromethoxy-1,2,2,2-tetrafluoroethane, 1-trifluoromethoxy-2,2,2-trifluoroethane, tris(trifluoromethyl)amine, difluoromethyl sulfur pentafluoride, pentafluoroethyl sulfur pentafluoride, ammonia, butane or isobutane.The invention also relates to azeotropic or azeotrope-like compositions which comprise admixtures of effective amounts of bis(difluoromethyl) ether and 1-trifluoromethoxy-1,1,2,2-tetrafluoroethane, difluoromethoxy pentafluoroethane, 1-trifluoromethoxy-1,2,2,2-tetrafluoroethane, 1-trifluoromethoxy-2,2,2-trifluoroethane, tris(trifluoromethyl)amine, difluoromethyl sulfur pentafluoride, pentafluoroethyl sulfur pentafluoride, ammonia, butane or isobutane.Type: GrantFiled: May 19, 1994Date of Patent: September 3, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventors: Donna M. Patron, Barbara H. Minor
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Patent number: 5552080Abstract: Nonazeotropic solvent blends useful for cold cleaning applications in an open environment containing an HCFC, HFC or PFC component having no flash point (such as 141b), a higher boiling nonflammable chlorinated solvent (such as perchloroethylene), and a moderately flammable, intermediate boiling, oxygenated organic solvent (such as n-butanol).Type: GrantFiled: October 11, 1995Date of Patent: September 3, 1996Assignee: Elf Atochem North America, Inc.Inventor: Michael S. Bolmer
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Patent number: 5549839Abstract: An industrial solvent that is non-toxic, biodegradable, and completely safe for human and animal contact, based primarily on a d-limonene composition made up of 95 percent pure d-limonene in approximately 73 to 74 percent volume, a surfactant such as ethoxylated nonyl phenol in approximately 16 to 17 percent by volume, and a tall oil fatty acid in approximately 9 to 10 percent by volume, which is mixed together in a liquid form and applied directly at full strength to an oil spill or other waste petroleum products such as tar or grease, the composition being completely safe and cost effective for petroleum waste cleanup.Type: GrantFiled: April 21, 1995Date of Patent: August 27, 1996Inventor: William C. Chandler
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Patent number: 5543071Abstract: Nearly azeotropic compositions consisting of hydrogenated fluorocarbons, suitable as freezing mixture in conditioning plants, essentially consisting of:(A) from 38 to 53% by weight of R22;(B) from 34 to 56% by weight of R124 and/or R124A;(C) from 2 to 13.5% by weight of R600 and/or R600A.Type: GrantFiled: August 28, 1995Date of Patent: August 6, 1996Assignee: Ausimont S.P.A.Inventors: Giampiero Basile, Ezio Musso
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Patent number: 5540862Abstract: Colored, electrically conductive compositions comprising substituted and unsubstituted polyanilines and functionalized protonic acids and blends with insulating and semiconducting substrate polymers or polymers plus solvents are disclosed as are methods of forming colored electrically conductive articles of polyaniline/substrate/acid mixtures.Type: GrantFiled: March 18, 1994Date of Patent: July 30, 1996Assignee: Uniax CorporationInventors: Yong Cao, Paul Smith
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Patent number: 5538659Abstract: This invention relates to compositions of a hexafluoropropane and a hydrofluorocarbon, with the hydrofluorocarbon being hexafluoropropane, pentafluoropropane, tetrafluoropropane, trifluoropropane, difluoropropane, fluoropropane, or (CF.sub.3).sub.2 CHCH.sub.3. The compositions, which may be azeotropic or azeotrope-like, may be used as refrigerants, cleaning agents, expansion agents for polyolefins and polyurethanes, aerosol propellants, refrigerants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents or displacement drying agents.Type: GrantFiled: March 21, 1994Date of Patent: July 23, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventors: Tuneen E. C. Chisolm, Barbara H. Minor
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Patent number: 5538658Abstract: Refrigerant compositions include mixtures of pentafiuorodimethyl ether and a second component, wherein the second component is ammonia, dimethyl ether, cyclopropane, propane or propylene.The invention also relates to azeotropic or azeotrope-like composition which comprise admixtures of effective amounts of pentafluorodimethyl ether and ammonia, dimethyl ether, cyclopropane, propane or propylene.Type: GrantFiled: January 27, 1994Date of Patent: July 23, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventor: Barbara H. Minor
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Patent number: 5531916Abstract: Cleaning compositions comprising an acyclic aliphatic hydrofluorocarbon represented by the formula:C.sub.x H.sub.y F.sub.2x+2-ywhere x equals 4, 5 or 6, y equals 1, 2 or 3 with the proviso that when x equals 4, Y equals 2 or 3, and a co-solvent boiling between 20.degree. C.-105.degree. C. that are alcohols, esters, ethers, ketones, chlorinated hydrocarbons, optionally containing fluorine, having 1-4 carbons atoms, acetonitrile and nitromethane.Type: GrantFiled: October 13, 1993Date of Patent: July 2, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventor: Abid N. Merchant
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Patent number: 5529723Abstract: Microemulsion light duty liquid detergent with desirable cleansing properties and mildness to the human skin comprising four essential surfactants: a water soluble nonionic surfactant, a C.sub.8-18 ethoxylated alkyl ether sulfate anionic surfactant, a C.sub.10-20 paraffin sodium sulfonate surfactant, and a betaine surfactant.Type: GrantFiled: December 15, 1994Date of Patent: June 25, 1996Assignee: Colgate-Palmolive Co.Inventor: Julien Drapier
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Patent number: 5525263Abstract: The present invention is a hair and body cleaning composition containing a combination of at least one predetermined nitrogen-free thickener and a surfactant mixture of alkyl ether sulfate, ethoxylated sulfosuccinic acid hemiester and alkyl ether carboxylate or alkali polyglycoside. The hair and body cleaning composition according to the invention is distinguished by excellent compatibility with skin.Type: GrantFiled: July 8, 1994Date of Patent: June 11, 1996Assignee: Wella AktiengesellschaftInventors: Rudolf Bimczok, Thomas Stiehm, Viola Grohe
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Patent number: 5525254Abstract: A liquid composition for removing residual adhesives left behind from reflective and non-reflective vinyl graphics, tape, labels, stickers, etc., from a surface very quickly and safely without causing damage to the host surface and further enabling one to determine if all the adhesive has been removed from the host surface.Type: GrantFiled: May 30, 1995Date of Patent: June 11, 1996Inventor: Steven J. Reininger
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Patent number: 5523021Abstract: This invention concerns conductive materials based on an encapsulated conductive polymer. Encapsulation in a shell of polymer stabilizes the conductivity of these materials, which can be encapsulated in a shell of film-generating polymer, to give the material formed very good mechanical properties, unlike conductive polymers which existed in the prior art, which, if not encapsulated, form brittle materials that are less stable in time.Type: GrantFiled: December 9, 1994Date of Patent: June 4, 1996Assignee: Thomson-CSFInventors: Florence Epron, Francois Henry, Olivier Sagnes, Jean-Claude Dubois
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Patent number: 5523017Abstract: A solid cleansing, particularly personal care, especially shampoo, bar comprises from 70% to 80% by weight of a polyethylene glycol (PEG) base system having an average molecular weight between 6,500 and 8,500. The base system may comprise a mixture of PEG 6000, PEG 8000 and PEG 400. The composition includes from 12% to 20% by weight of a detergent which is typically a combination of an anionic surfactant (e.g. a lauryl sulphate) and an amphoteric surfactant (e.g. an imidazoline). Up to 12% of coactive ingredients such as foam stabilizers, pearling agents, emollients and conditioners may also be present.Type: GrantFiled: August 8, 1994Date of Patent: June 4, 1996Assignee: NephinInventors: Thomas F. Moran, Brian O'Briain, Diarmuid Moran
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Patent number: 5520835Abstract: Improved detergent compositions, especially granular automatic dishwashing detergents, comprising multiquaternary bleach activators are provided. The bleach activators contain multiple quaternary nitrogen groups, preferably at least three such groups and preferably have at least one quaternary nitrogen group in the peracid-forming portion of the bleach activator as well as at least one quaternary nitrogen group in the leaving-group portion.Type: GrantFiled: May 8, 1995Date of Patent: May 28, 1996Assignee: The Procter & Gamble CompanyInventors: Mark R. Sivik, Lucille F. Taylor, James C. T. R. Burckett-St. Laurent