Patents Examined by Paul Lieberman
  • Patent number: 5733862
    Abstract: 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: Grant
    Filed: March 17, 1997
    Date of Patent: March 31, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Scott William Capeci, David Robert Nassano
  • Patent number: 5733480
    Abstract: Semiconductive polyolefin formulations are provided which are readily extrudable into films and coatings having low surface resistivity. The formulations of the invention are comprised of a polyethylene resin with 6 to 15 weight percent of a mixture of two different conductive carbon blacks. The conductive blacks have different structures as defined by their BET surface areas and dibutyl phthalate adsorption numbers. The extrudable semiconductive compositions of the invention have complex viscosities of 3000 to 10000 poise and dispersion numbers from 50 to 600. Extruded films having surface resistivities of less than 10 log ohms produced from the above-identified polyolefin compositions are also provided.
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: March 31, 1998
    Assignee: Quantum Chemical Corporation
    Inventors: Chun D. Lee, Mark F. McManus
  • Patent number: 5733343
    Abstract: Keratin-containing fibres, in particular human hair, are dyed using dyes of formulae (1) to (6) indicated in claim 1. These dyes make it possible to dye by the trichromatic principle even in dark shades.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: March 31, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Peter Mockli
  • Patent number: 5733858
    Abstract: 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: Grant
    Filed: August 29, 1996
    Date of Patent: March 31, 1998
    Assignee: The Dow Chemical Company
    Inventors: David A. Wilson, Druce K. Crump
  • Patent number: 5733344
    Abstract: The present invention provides a temporary hairdye which is excellent in dispersion stability of a pigment even after storage over a long period of time by dispersing titanium black, which is safe to a human body, in alcohol having 4 or less carbon atoms, primarily ethanol by using an N-methacryloylethyl-N,N-dimethylammonium..alpha.-N-methylcarboxybetain.but yl methacrylate copolymer. Further, there can be prepared a temporary hairdye which increases dispersion stability of the pigments and provides a different hue by subjecting titanium black and other pigments, particularly iron oxide type pigments such as iron oxide red, black iron oxide and yellow iron oxide to dispersion treatment together.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: March 31, 1998
    Assignee: Mitsubishi Pencil Kabushiki Kaisha
    Inventors: Katsuhiko Shiraishi, Kiyokazu Sakurai, Tetsuo Kosaka, Tomoko Hasegawa, Kazuhiro Ami, Takashi Umeno
  • Patent number: 5733341
    Abstract: A process is described for inhibiting the re-absorption of migrating dyes in the wash liquor, comprising introducing into a wash liquor containing a peroxide-containing detergent, from 0.5 to 150, preferably from 1.5 to 75, especially from 7.5 to 40 mg, per liter of wash liquor, of one or more compounds having the formula (1), (2), (3), (4), (5), (6), (7), (8), (9), (10), (11), (12), (13) or (14) as defined in the specification. The compounds of formula (1), (2), (3), (4), (5), (6), (8), (9) (10), (11), (12), (13) or (14) are new compounds. The compounds used do not exhaust at all on to cotton, polyamide or polyester fibers, so that the compounds cannot lead to fiber discoloration problems.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: March 31, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Claude Eckhardt, Dieter Reinehr, Georges Metzger
  • Patent number: 5733473
    Abstract: Liquid detergent compositions are disclosed which contain conventional detergency ingredients and an enzyme system, wherein the enzyme system comprises a mixture of a lipase, or mixtures thereof, and a modified bacterial serine protease, or mixtures of said proteases.
    Type: Grant
    Filed: October 13, 1994
    Date of Patent: March 31, 1998
    Assignee: The Procter & Gamble Company
    Inventors: James Pyott Johnston, Pierre Marie Alain Lenoir, Christiaan Arthur J. K. Thoen
  • Patent number: 5731276
    Abstract: The present invention provides an abrasive-free cleaning composition which includes, in aqueous solution, a bleach, a colloidal thickener, and a source of divalent ionic calcium. The composition further includes at least one surfactant which is effective to provide cleaning activity and, in association with the colloidal thickener, thickening. The composition also includes an electrolyte/buffer which is effective to promote an environment in which the thickener and the surfactant associate to provide proper thickening. The inventive cleaning composition, with its ionic calcium source, has desirable viscosity and rheological properties, and demonstrates significant viscosity stability, rheological stability, phase stability and bleach stability. The cleaning composition maintains these desirable properties under typical storage conditions as well as over extended times and at elevated temperatures.
    Type: Grant
    Filed: July 30, 1996
    Date of Patent: March 24, 1998
    Assignee: The Clorox Company
    Inventors: Brian P. Argo, Clement K. Choy
  • Patent number: 5731275
    Abstract: Disclosed herein is a synergistic cleaning and disinfecting composition for use in decontaminating biofilm-coated surfaces like fresh water lines providing water supply to dental instruments, these lines being susceptible to contamination by microorganisms and being susceptible to the formation of biofilm coatings on their inner walls, the composition comprising an effective amount of a detergent, an effective amount of a denaturing agent attacking the extracellular matrix formed between microorganisms and between microorganisms and the inner walls of these water lines and an effective amount of a bactericide for destroying the microorganisms.
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: March 24, 1998
    Assignee: Universite de Montreal
    Inventors: Andre Prevost, Jean Barbeau, Ludger Cote, Robert Charland, Esther Faucher
  • Patent number: 5731282
    Abstract: A cleaning/disinfecting concentrate is provided that includes a concentrate having, in admixture, 30-70% by volume of a detergent; 10-40% by volume of a non-emulsified fragrance; and 5-20% by volume of a preservative/disinfectant, wherein the ratio of detergent/surfactant to perfume/disinfectant is 0.75-5.0 by volume, as well as methods of making and using thereof.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: March 24, 1998
    Assignee: Jean-Pierre Duquesne
    Inventor: Jean-Pierre Duquesne
  • Patent number: 5731280
    Abstract: The present invention relates to lipase and .alpha.-amylase variants, stabilized towards the inactiviation caused by peroxidase systems, in which variants a naturally occurring tryosine residue has been deleted, substituted with a different amino acid residue at one or more positions. The invention also relates to a method of stabilizing a lipase or an .alpha.-amylase towards the inactivation caused by the preoxidase systems, and detergent compositions comprising a lipase and/or .alpha.-amylase variant of the invention.
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: March 24, 1998
    Assignee: Novo Nordisk A/S
    Inventors: Egon Nielsen, Grethe Rasmussen, Torben Halkier
  • Patent number: 5731277
    Abstract: A composition and method for inhibiting the extraction of transition metals from tableware washed in automatic dishwashers is described. The composition contains an aluminum species in which substantially all of the aluminum (III) ions are present as aluminum tetrahydroxide. A bleaching agent, a builder and optionally a surfactant and a silicate are present. The composition has a pH of less than about 10. A process for preparing the composition is also described.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: March 24, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Richard Gerald Gary, Petrus Adrianus Johannes Marinus Angevaare, Arnold Oscar Jensen, Leonard Van Gorkom
  • Patent number: 5728672
    Abstract: A pine oil cleaning concentrate composition comprising as essential constituents: pine oil, a nonionic surfactant with a cloud point of 20.degree. C. or less, a solubilizing agent and, water, feature reduced levels of volatile organic contents, including reduced amounts of pine oil, yet provides good blooming characteristics upon mixing of the concentrate composition with a further amount of water to produce a cleaning composition therefrom. The pine oil cleaning compositions may further include conventional additives, including germicidal agents, viscosity modification agents, fragrances (natural or synthetically produced), foaming agents, further surfactants, and coloring agents.
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: March 17, 1998
    Assignee: Reckitt & Colman Inc.
    Inventor: Alan F. Richter
  • Patent number: 5728771
    Abstract: A composition and method for providing a non-formaldehyde durable press finish to cellulosic fabrics by employing polyphosphinocarboxylic acids are disclosed. The polyphosphinocarboxylic acid is preferably polyphosphinoacrylic acid, and is optimally used in combination with phosphonoalkylpolycarboxylic acid, and, for cost effectiveness, a low-cost polycarboxylic acid such as citric acid. The catalyst for the curing reaction is preferably a phosphorus-containing acid or alkali metal salt thereof such as a mixture of sodium monophosphate and sodium hypophosphite.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: March 17, 1998
    Assignee: PPG Industries, Inc.
    Inventors: Robert H. Tang, William A. Williams, Jr.
  • Patent number: 5728660
    Abstract: A cleaning process and water-based cleaning compositions effective for the removal of radionuclides, polychlorinated biphenyls, pesticides, herbicides, and heavy metals from surfaces of all types, more especially porous surfaces, surfaces that contain irregularities and microscopic voids into which contaminants may migrate and lodge thereby creating a substrate below the surface that must also be cleaned, and particulate surfaces. The cleaning blends and processes remove contaminants from porous and irregular surfaces to such a depth below the surface and into the substrate, and to such an extent, that the cleaned surface satisfies current regulations promulgated by the EPA and NRC relating to standards for decontamination. The process also allows sealing of cleaned surfaces, if desired, with an impermeable coating of a synthetic polymeric composition in order to retard subsequent migration of any residual contaminants to the surface.
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: March 17, 1998
    Assignee: EET, Inc.
    Inventor: Ronald E. Borah
  • Patent number: 5728322
    Abstract: A conductive polymeric coating paste made by thoroughly mixing ingredients in a heated stirring vessel is composed of an aromatic solvent, a quantity "X" of free conductor powder, a substrate-forming elastomer, which contains no diene monomer, equal to 0.25X to 0.40X, by weight, and a paraffin equal to 0.25X to 0.40X, by weight, of said conductor powder.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: March 17, 1998
    Inventors: Yong Chul Kim, Hiroshi Nishino
  • Patent number: 5728316
    Abstract: The invention relates to salt mixtures composed of Mg(NO.sub.3).sub.2.6H.sub.2 O and LiNO.sub.3 in a mass ratio of 86-81:14-19 for storing and utilizing thermal energy in the form of heat of phase transformation. They are eminently suitable as latent heat storage media for heat reservoirs for storing and utilizing the waste heat of motor vehicle engines.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: March 17, 1998
    Assignees: Merck Patent Gesellschaft mit beschrankter Haftung, Bayerische Motorenwerke AG
    Inventors: Rudiger Kniep, Hans Klein, Peter Kroeschell
  • Patent number: 5728663
    Abstract: The present invention relates to a clear colorless soap bar with superior mildness, lathering and discoloration resistance. The clear colorless soap consists of a blend of C12-C18 fatty acids neutralized with sodium hydroxide (NaOH) and triethanolamine (TEA). Excess TEA acts as a co-solvent and is responsible for clarity of the soap bar. The bar also contains a branched chain acid such as isostearic acid to break up crystallinity and add to product clarity. Low color and color stability are obtained by removing unsaturated fatty acids, and by the use of antioxidants (BHT and Vitamin E). Low levels of C6 to C10 fatty acids provide exceptional mildness.
    Type: Grant
    Filed: July 2, 1996
    Date of Patent: March 17, 1998
    Assignee: Johnson & Johnson Consumer Products, Inc.
    Inventor: Danilo L. Lambino
  • Patent number: 5728665
    Abstract: The present invention concerns a thickened viscoelastic cleaning formulation comprising, in aqueous solution: (a) an active cleaning compound; and (b) a viscoelastic thickening system comprising a tetradecyldialkylamine oxide and a hydrophobic organic counterion; wherein the formulation has a viscosity of at least 500 cP at 20.degree. C. The present invention is characterized as a means for reducing the characteristic "bleach odor" found in hypochlorite cleaning compositions of the prior art, particularly those which are volatilized upon dispensing. The compositions of the present invention may further be formulated to have utility as a hard surface cleaner, or as a drain opener.
    Type: Grant
    Filed: September 13, 1995
    Date of Patent: March 17, 1998
    Assignee: The Clorox Company
    Inventors: Clement Kin-Man Choy, Brian Patrick Argo
  • Patent number: 5728321
    Abstract: This invention relates to a conducting organic polymer formed by doping an organic polymer with a protonic acid having a dissociation constant value pKa of less than 4.8, wherein the organic polymer has, as the main repeating unit, a compound represented by the general formula: ##STR1## wherein, m and n, respectively, show the molar fraction of the quinonediimine structural unit and phenylenediamine structural unit in the repeating unit, and 0<m<1, 0<n<1, and m+n=1; and the organic polymer is soluble in an organic solvent in the undoped state, and has an intrinsic viscosity ?.eta.! of more than 0.4 dl/g measured in N-methyl-2-pyrrolidone at 30.degree. C. This invention also relates to a film formed of the conducting organic polymer and a conducting organic polymer composition.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 17, 1998
    Assignee: Nitto Denko Corporation
    Inventors: Masao Abe, Akira Ohtani, Hiroyuki Higuchi, Minoru Ezoe, Shinya Akizuki, Keiji Nakamoto, Keiko Mochizuki, Yasuhiro Umemoto, Michio Umeda