Patents Examined by Linda Skaling
  • Patent number: 5571447
    Abstract: 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: Grant
    Filed: March 20, 1995
    Date of Patent: November 5, 1996
    Assignee: Ashland Inc.
    Inventors: Irl E. Ward, Francis Michelotti, Leslie D. Molnar
  • Patent number: 5567348
    Abstract: 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: Grant
    Filed: February 28, 1995
    Date of Patent: October 22, 1996
    Assignee: Kao Corporation
    Inventors: Masanori Nozawa, Eiji Kashihara
  • Patent number: 5562857
    Abstract: 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: Grant
    Filed: December 22, 1995
    Date of Patent: October 8, 1996
    Assignee: Bayer Corporation
    Inventors: Joachim Werner, Scott A. Kane, Charles E. Mortimer, Herman P. Doerge, Eric F. Boonstra
  • Patent number: 5560860
    Abstract: 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: Grant
    Filed: January 11, 1995
    Date of Patent: October 1, 1996
    Assignee: BASF Corporation
    Inventors: William C. Walsh, Lawrence E. James
  • Patent number: 5560861
    Abstract: Azeotropic compositions include a perfluorinated alkane or alkene and an organic solvent.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: October 1, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Richard M. Flynn, Mark W. Grenfell, Frank W. Klink, Daniel R. Vitcak
  • Patent number: 5558810
    Abstract: 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: Grant
    Filed: November 16, 1994
    Date of Patent: September 24, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Barbara H. Minor, Tuneen E. C. Chisolm
  • Patent number: 5552074
    Abstract: 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: Grant
    Filed: May 19, 1994
    Date of Patent: September 3, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Donna M. Patron, Barbara H. Minor
  • Patent number: 5552080
    Abstract: 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: Grant
    Filed: October 11, 1995
    Date of Patent: September 3, 1996
    Assignee: Elf Atochem North America, Inc.
    Inventor: Michael S. Bolmer
  • Patent number: 5549839
    Abstract: 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: Grant
    Filed: April 21, 1995
    Date of Patent: August 27, 1996
    Inventor: William C. Chandler
  • Patent number: 5543071
    Abstract: 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: Grant
    Filed: August 28, 1995
    Date of Patent: August 6, 1996
    Assignee: Ausimont S.P.A.
    Inventors: Giampiero Basile, Ezio Musso
  • Patent number: 5540862
    Abstract: 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: Grant
    Filed: March 18, 1994
    Date of Patent: July 30, 1996
    Assignee: Uniax Corporation
    Inventors: Yong Cao, Paul Smith
  • Patent number: 5538659
    Abstract: 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: Grant
    Filed: March 21, 1994
    Date of Patent: July 23, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Tuneen E. C. Chisolm, Barbara H. Minor
  • Patent number: 5538658
    Abstract: 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: Grant
    Filed: January 27, 1994
    Date of Patent: July 23, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Barbara H. Minor
  • Patent number: 5531916
    Abstract: 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: Grant
    Filed: October 13, 1993
    Date of Patent: July 2, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Abid N. Merchant
  • Patent number: 5529723
    Abstract: 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: Grant
    Filed: December 15, 1994
    Date of Patent: June 25, 1996
    Assignee: Colgate-Palmolive Co.
    Inventor: Julien Drapier
  • Patent number: 5525263
    Abstract: 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: Grant
    Filed: July 8, 1994
    Date of Patent: June 11, 1996
    Assignee: Wella Aktiengesellschaft
    Inventors: Rudolf Bimczok, Thomas Stiehm, Viola Grohe
  • Patent number: 5525254
    Abstract: 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: Grant
    Filed: May 30, 1995
    Date of Patent: June 11, 1996
    Inventor: Steven J. Reininger
  • Patent number: 5523021
    Abstract: 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: Grant
    Filed: December 9, 1994
    Date of Patent: June 4, 1996
    Assignee: Thomson-CSF
    Inventors: Florence Epron, Francois Henry, Olivier Sagnes, Jean-Claude Dubois
  • Patent number: 5523017
    Abstract: 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: Grant
    Filed: August 8, 1994
    Date of Patent: June 4, 1996
    Assignee: Nephin
    Inventors: Thomas F. Moran, Brian O'Briain, Diarmuid Moran
  • Patent number: 5520835
    Abstract: 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: Grant
    Filed: May 8, 1995
    Date of Patent: May 28, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Mark R. Sivik, Lucille F. Taylor, James C. T. R. Burckett-St. Laurent