Patents Examined by John F. McNally
  • Patent number: 5259848
    Abstract: A method to remove stubborn stains that includes application of an ammonium salt in combination with a peroxide. In the preferred embodiment, the stain removing solution contains ammonium bicarbonate and peroxide. A major advantage of the method is that the solution is strong enough to remove coffee and tea stains yet sufficiently mild that it does not damage the carpet or pose a significant health hazard to the person treating the stain.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: November 9, 1993
    Assignee: Interface, Inc.
    Inventors: C. Edward Terry, Daniel F. Pinholster, Jr.
  • Patent number: 5252243
    Abstract: An aqueous cleaning composition suitable for removing stains, soils, or combinations thereof from synthetic polymer fibers. The composition finds particular application in removing coffee stains from fibers contained in textile products such as carpets. The composition has a pH in the range of from about 7.0 to about 12 and comprises a peroxyhydrate, i.e., hydrogen peroxide, and a water soluble alcohol having up to 5 carbon atoms, i.e., isopropyl.
    Type: Grant
    Filed: January 8, 1990
    Date of Patent: October 12, 1993
    Assignee: BASF Corporation
    Inventor: Charles R. Minns
  • Patent number: 5244466
    Abstract: Textile bleaching operations are enhanced by passing the cloth being treated alternately between an aqueous hydrogen peroxide solution and an oxygen-containing head space.
    Type: Grant
    Filed: October 21, 1987
    Date of Patent: September 14, 1993
    Assignee: Praxair Technology, Inc.
    Inventors: Lawrence M. Litz, Thomas J. Bergman, Jr.
  • Patent number: 5244467
    Abstract: Polyphenylene sulfone fibers mainly consisting of a structural unit represented by a general formula ##STR1## (x is 0 or 1 or 2) wherein x, the average value of x, is 1.0 to 2.0, and a method for production thereof. These fibers are prepared by modifying polyphenylene sulfide fibers, whose specific surface area and degree of orientation are more than 0.4 m.sup.2 /g and more than 70%, respectively, to polyphenylene sulfone fibers represented by a main constituting unit with organic peroxides. These fibers have excellent heat and chemical resistance.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: September 14, 1993
    Assignee: Toray Industries, Inc.
    Inventors: Masao Umezawa, Toshio Tsubota, Shiro Imai
  • Patent number: 5242463
    Abstract: Anionically dyeable smooth-dry crosslinked cellulose is produced by modifying cellulose-containing material with the combination of a hydroxyalkylamine or a hydroxyalkyl quaternary ammonium salt, a methylolamide crosslinking agent and one or more reactively inert glycol ether swelling agents. The reaction is typically catalyzed with salts such as zinc nitrate or magnesium chloride used either alone or in conjunction with citric acid. Types of usable anionic dyes include acid, direct, and reactive dyes. The cellulose-containing material may be in the form of fibers, threads, linters, roving, fabrics, yarns, slivers and paper.
    Type: Grant
    Filed: March 6, 1991
    Date of Patent: September 7, 1993
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Eugene J. Blanchard, Robert M. Reinhardt
  • Patent number: 5238671
    Abstract: This invention is directed to conducting chemical reactions in reverse micelle or microemulsion systems comprising a substantially discontinuous phase including a polar fluid, typically an aqueous fluid, and a microemulsion promoter, typically a surfactant, for facilitating the formation of reverse micelles in the system. The system further includes a substantially continuous phase including a non-polar or low-polarity fluid material which is a gas under standard temperature and pressure and has a critical density, and which is generally a water-insoluble fluid in a near critical or supercritical state. Thus, the microemulsion system is maintained at a pressure and temperature such that the density of the non-polar or low-polarity fluid exceeds the critical density thereof. The method of carrying out chemical reactions generally comprises forming a first reverse micelle system including an aqueous fluid including reverse micelles in a water-insoluble fluid in the supercritical state.
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: August 24, 1993
    Assignee: Battelle Memorial Institute
    Inventors: Dean W. Matson, John L. Fulton, Richard D. Smith, Keith A. Consani
  • Patent number: 5238463
    Abstract: Denim articles of clothing such as blue jeans, are conventionally treated with a permanganate. The permanganate is thereafter neutralized with a liquid composition containing peroxide, a sulfate and deionized water. The composition neutralized the permanganate, prevents the yellowing of the article and reduces the biological oxygen demand in plant effluent.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: August 24, 1993
    Assignee: Diversey Corporation
    Inventors: Catherine A. Arini, George E. Corte
  • Patent number: 5236465
    Abstract: A very effective method is proposed for the shrink-proof treatment of a fabric material of keratinous fibers, e.g., wool, in which the fabric material is first soaked with an aqueous solution of a persulfate compound followed by drying to effect surface oxidation of the fibers and then finished with a curable organopolysiloxane composition. Preferably, the curable organopolysiloxane composition comprises, as a dispersion in an aqueous medium, (A) an organopolysiloxane having hydroxyl or alkoxyl groups, (B) silica or an organopolysilsesquioxane in a finely divided form, (C) an alkoxy silane having an amido group and a carboxyl group in a molecule, (D) an alkoxy silane having an amino group or an epoxy group in a molecule, and (E) a curing catalyst, each in a specified proportion.
    Type: Grant
    Filed: August 5, 1991
    Date of Patent: August 17, 1993
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hiroshi Ohashi, Yoshio Okamura
  • Patent number: 5234616
    Abstract: Peroxygen bleach compositions which can be used together with oxygen-sensitive wash aids are disclosed. Combination products comprising these bleach compositions together with the oxygen sensitive wash aids are disclosed as well as are methods of laundering employing them. The bleach compositions include a peroxygen source, a surface active or hydrotropic bleach activator or catalyst therefor and a quaternary ammonium salt. As compared to equivalent compositions not containing the quaternary ammonium salt, these bleach compositions are characterized by a delayed onset of active oxygen production when they are added to wash solutions. When these bleach compositions are used in combination with oxygen-sensitive wash aids, the sensitive wash aids have an initial period when they can act before the active oxygen level rises to a level that it interferes with their action.
    Type: Grant
    Filed: January 16, 1992
    Date of Patent: August 10, 1993
    Assignee: The Clorox Company
    Inventors: Frances E. Mitchell, David L. deLeeuw
  • Patent number: 5230811
    Abstract: A novel cleaner is disclosed, which is added to a reaction thermostat with water as medium in a scientific apparatus, particularly a thermostatic water bath in an automatic analyzer, and has bacteria-proof, fungi-proof and algae-proof effects. The cleaner comprises a triazine derivative and a surface active agent. Furthermore, the cleaner preferably contains a compound represented by a formula [I]: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represent a hydrogen atom, a methyl group or a hydroxymethyl group, and n is an integer of 1 to 5.
    Type: Grant
    Filed: April 7, 1992
    Date of Patent: July 27, 1993
    Inventors: Naomasa Shimotomai, Eriko Miyazawa, Takahiro Ueyama
  • Patent number: 5228884
    Abstract: A composition useful in obtaining a blotchy bleach effect on garments or fabrics comprising a thickening medium comprising a cellulosic ether, a bleaching agent, and an organic acid.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: July 20, 1993
    Assignee: Dexter Chemical Corporation
    Inventors: Richard Craven, Brian Scism, Robert Waddell, L. Thomas Holst
  • Patent number: 5221285
    Abstract: Catalysts for the rapid esterification and crosslinking of fibrous cellulose in textile form by polycarboxylic acids at elevated temperatures are disclosed. The catalysts are acidic or weakly basic salts selected from the alkali metal dihydrogen phosphates and alkali metal salts of phosphorous, hypophosphorous, and polyphosphoric acids. Suitable polycarboxylic acids include saturated, unsaturated and aromatic acids, as well as alpha-hydroxy acids. The textiles so treated exhibit high levels of wrinkle resistance and smooth drying properties durable to repeated laundering in alkaline detergents, and do not contain or release formaldehyde.
    Type: Grant
    Filed: August 21, 1990
    Date of Patent: June 22, 1993
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Bethlehem K. Andrews, Nancy M. Morris, Darrell J. Donaldson, Clark M. Welch
  • Patent number: 5215544
    Abstract: According to the present invention, an animal hair fiber can significantly be modified by fixing the supercontraction of the fiber which is a disadvantage in itself. The process for modifying the animal hair fiber according to the present invention comprises pretreating the animal hair fiber with a cleaving reagent for crosslinkage of the fiber and then treating the pretreated fiber with an supercontracting reagent. Furthermore, the process for preparing a bulky wool yarn according to the present invention comprises treating an mixed yarn with the supercontracting reagent, said mixed yarn consisting of the pretreated animal hair fiber with the cleaving reagent for crosslinkage of the fiber and a non-pretreated animal hair fiber.
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: June 1, 1993
    Assignee: Kurashiki Boseki Kabushiki Kaisha
    Inventors: Tadashi Karakawa, Satoshi Konagaya, Tetuo Hirose, Takashi Kondo
  • Patent number: 5215543
    Abstract: Methods are provided for abrading dyed fabric to produce a stonewashed effect by tumbling the fabric with stones of a chemical composition that is soluble in wash or rinse liquid for the fabric, where the stones are of sufficient size and hardness to effect abrasion of the fabric without substantial mechanical disintegration of the stones and in a manner simulating the action of pumice stone. The chemical stonewashing composition may be a compacted powder, agglomerate, coagulate, or other integral mass or solid formed from an alkali or alkaline earth metal carbonate, bicarbonate, silicate, sulfate, borate, halide, hydroxide or hydrate or peroxyhydrate thereof, for example.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: June 1, 1993
    Assignee: Elf Atochem North America, Inc.
    Inventors: David J. Milora, David M. Shank, Peter A. Curato
  • Patent number: 5215541
    Abstract: A process for the preparation of implantable biological tissue, and in particular bioprosthetic heart valves, which are prone to calcification after implantation. The process includes the treatment of tissue with an effective amount of a surfactant to reduce calcification of the implanted tissue.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: June 1, 1993
    Assignee: Baxter International Inc.
    Inventors: Aws S. Nashef, Ahmed I. Ahmed
  • Patent number: 5211720
    Abstract: Thermoplastic fabrics are flame retardant treated and optionally heatset and/or simultaneously dyed in a heated flame retardant liquid in which a disperse or acid dye may be dissolved. Flame-resistant fabrics result.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: May 18, 1993
    Assignee: Burlington Industries, Inc.
    Inventor: James R. Johnson
  • Patent number: 5205836
    Abstract: Durable press finishes are applied to cellulosic materials such as cotton by cross-linking a polycarboxylic acid within the cellulosic fibers using a cyanamide compound cross-linker devoid of phosphorus. Wrinkle-resistant, durable cellulosic materials free from formaldehyde odor result.
    Type: Grant
    Filed: December 13, 1990
    Date of Patent: April 27, 1993
    Assignee: Burlington Industries, Inc.
    Inventors: John H. Hansen, Phillip H. Riggins
  • Patent number: 5205835
    Abstract: A process is provided in which manganese dioxide stains in denim fabric which has been partially decolorized with potassium permanganate are neutralized or removed by an aqueous solution of peracetic acid containing at least 1 part by weight acetic acid and 1.5 parts by weight hydrogen peroxide per part by weight peracetic acid.
    Type: Grant
    Filed: February 7, 1991
    Date of Patent: April 27, 1993
    Assignee: FMC Corporation
    Inventors: Robert H. Tieckelmann, Lisa M. Kurschner
  • Patent number: 5204016
    Abstract: A non-caustic oven cleaner comprising a terpene is provided. The terpene is most preferably d-limonene. The oven cleaner further comprises effective amounts of a cleaning surfactant, a foaming agent, a stabilizer, a wetting agent and a viscosity agent. Said oven cleaner is produced by separately pre-mixing the oil phase components and the water phase components and then mixing the oil phase into the water phase. A method for safely cleaning oven residue is provided, comprising heating the oven, contacting the oven cleaner to the interior surfaces of the oven for a specified amount of time, and further rinsing said oven cleaner from the interior surfaces of the oven.
    Type: Grant
    Filed: June 16, 1989
    Date of Patent: April 20, 1993
    Assignee: Golden Technologies Company, Inc.
    Inventors: C. R. Hamilton, Dennis R. Sampson
  • Patent number: RE34300
    Abstract: New chloro-meta-phenylenediamines, their use as couplers in the oxidation dyeing of keratinous fibres, dyeing compositions for hair containing these compounds and dyeing process using the said compositions.The invention relates to the compounds of formula: ##STR1## in which Z and Z' denote, independently of one another, an alkyl radical having from 1 to 4 carbon atoms or a hydroxyalkyl radical having from 2 to 4 carbon atoms, andR.sub.1 and R.sub.2 denote, independently of one another, a hydrogen atom, an alkyl radical having from 1 to 4 carbon atoms or a mono- or polyhydroxyalkyl radical having 2 or 3 carbon atoms, to their addition salts with an acid, and to their use by way of couplers for the oxidation dyeing of keratinous fibres, especially human hair.These compounds, when they are combined with paraphenylenediamines, surprisingly give beige to light brown hues or purple hues of greater of lesser redness, depending on the substitution of the 5-amino group of the chlorobenzene.
    Type: Grant
    Filed: August 13, 1990
    Date of Patent: July 6, 1993
    Assignee: L'Oreal
    Inventors: Alex Junino, Jean J. Vandenbossche, Herve Borowiak, Gerard Lang