Patents Examined by Alan D. Diamond
  • Metal overbased and gelled natural oils
    Patent number: 5508331
    Abstract: A metal overbased composition is disclosed that comprises(A) at least one natural oil comprising an animal oil or vegetable oil comprising a triglyceride of the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 arc independently saturated or unsaturated aliphatic hydrocarbyl groups containing from about 8 to about 24 carbon atoms and(B) a metal base oxide (MO), hydroxide (MOH) or alkoxide (R.sup.4 OM) wherein the metal comprises an alkali or alkaline earth and R.sup.4 is a hydrocarbyl group containing from about 1 to about 24 carbon atoms, and wherein the equivalent ratio of (A):(B) is from 0.90-10:1 to form a saponified intermediate, adding 2-11 equivalents of (B) per equivalent of formed saponified intermediate and reacting excess (B) with(C) an acidic gas comprising carbon dioxide, sulfur dioxide or sulfur trioxide.This composition may also be gelled to produce a rheology control agent.
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: April 16, 1996
    Assignee: The Lubrizol Corporation
    Inventors: Willis P. Nichols, Calvin W. Schroeck, Daniel E. Barrer, Robert E. Quinn
  • Protonic, conductive, electrolytic materials
    Patent number: 5507965
    Abstract: Protonic, conductive, macromolecular materials comprising a solid complex of anhydrous orthophosphoric acid and polyoxyethylene and also having an antioxidizing agent and/or a thixotropic agent are useful as an electrolyte in electrochromic systems, particularly systems fitted in the vertical position.
    Type: Grant
    Filed: February 23, 1995
    Date of Patent: April 16, 1996
    Assignee: Saint-Gobain Vitrage
    Inventors: Christian Padoy, Didier Le Couviour
  • Tanning agent containing a dialdehyde
    Patent number: 5505864
    Abstract: Tanning agents containing an .omega.,.omega.-dialdehyde as as the active tanning substance, optionally in a deactivated form, in combination with a polymer containing hydroxyl groups, and methods for using such tanning agents in the preparation of leather, particularly in pickling, tanning, and retanning.
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: April 9, 1996
    Assignee: Rohm GmbH
    Inventors: Harald Bauer, Juergen Christner, Gertrud Wick
  • Worn wash process for garments
    Patent number: 5505739
    Abstract: The method of the present invention is used to create an overall worn look with areas of heavy wear in specific areas of a new garment's fabric to simulate the wear that occurs from the normal wear of a garment over a prolonged period of time. The method of the present invention comprises the steps of sandblasting the fabric of the new garment to be treated in specific areas in which worn marks simulating areas of heavy wear are desired and treating the entire fabric so that it fades and additional random areas of wear are created. According to the method disclosed, areas of heavy wear occur only in those areas of the fabric which is directly exposed to sandblasting, while the remainder of the fabric obtains a random faded look such that the overall appearance of the new garment simulates that of an old garment that has been naturally worn for a prolonged period of time.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: April 9, 1996
    Assignee: Lucky Brand Dungarees, Inc.
    Inventor: Gene Montesano
  • Magnetorheological Fluid
    Patent number: 5505880
    Abstract: A magnetorheological fluid essentially consists of magnetic particles which are coated with a polyelectrolyte and are suspended in a polar liquid. The fluid has a magnetorheological effect of more than 100 Pa, measured in a magnetic field of 100 kA/m.
    Type: Grant
    Filed: November 16, 1994
    Date of Patent: April 9, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Claudius Kormann, Ekkehard Schwab, Martin Laun
  • Wet treatment of leather hides
    Patent number: 5503754
    Abstract: Wet leather treating compositions and methods of wet treating leather hides employing alkylpolyglycosides for enhancing the penetration and absorption of the leather treatment formulations in an environmentally safe manner. The compositions are substantially free of volatile organic compounds.
    Type: Grant
    Filed: November 10, 1993
    Date of Patent: April 2, 1996
    Assignee: Henkel Corporation
    Inventors: Michael W. Counts, John A. Thompson, Jack O. Lavoie, Robert A. Aleksejczyk
  • Aqueous dispersions of new amphiphilic co-oligomers for the washing- and cleaning-resistant oiling of leather and skins and their use
    Patent number: 5501707
    Abstract: The invention is a process for oiling of leather and skins which imparts washing and dry-cleaning resistance to the treated leather and skins and a composition useful in the process. The washing and dry-cleaning resistance of leather is improved by impregnating the leather with an aqueous dispersion of a co-oligomer containing residues of a partial ester of maleic acid and acrylic acid and/or methacrylic acid and optionally up to 45% by weight of residues of ether hydmphilic and oleophilic monomers. The composition can contain semiesters of sulfosuccinic acid as additional oiling agents.
    Type: Grant
    Filed: May 3, 1994
    Date of Patent: March 26, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Ludwig Schieferstein, Rudolf Zauns-Huber, Joachim Conradi, Emil Ruscheinsky
  • Process for tanning hides and compounds for use therein
    Patent number: 5501708
    Abstract: An organic polyol ester of a polycarboxylic acid having formulae (Para) and/or (Meta) and/or (Ortho), wherein R.sub.6 is --(COOR.sub.1)x, or (I).sub.1 R.sub.7 is H; or R.sub.6 and R.sub.7 together for (II); R.sub.1 and R.sub.2 are hydrogen or --OR.sub.1 and --OR.sub.2 together form an anhydride (--0--) bond; x is an integer of 0 or 1; Z is an integer ranging from 1 to the number of hydroxy groups on the polyol and D is a polyol residue. Also disclosed are processes for the preparation of these polyol esters, a tanning composition comprising a metallic salt and a polyol ester, and a method of tanning using said composition.
    Type: Grant
    Filed: October 7, 1993
    Date of Patent: March 26, 1996
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Peter Pojer, Kenneth C. Montgomery, Chi P. Huynh, Brian Milligan
  • Economy and plumping chrome tanning
    Patent number: 5501709
    Abstract: The present invention relates to a process for economy and plumping chrome tanning by admixing the pelts in the pickle bath with an aldehyde- and/or keto-carboxylic acid and then tanning, which comprises, prior to the addition of the aldehyde- and/or keto-carboxylic acid with or without other organic and/or inorganic acids, pretreating the delimed and bated pelts with an anionic, colloidal silicate solution.
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: March 26, 1996
    Assignee: Hoechst AG
    Inventor: Karlheinz Fuchs
  • Process for titanium-based mixed tannings
    Patent number: 5500020
    Abstract: The tanning of skins is carried out using a titanium-based compound in a percentage of 5% to 10% and especially of 6% with respect to the pelt weight of the skins; a washing treatment is carried out between a basification phase and a further tanning phase; in said washing phase a sodium (or potassium) salt is introduced in the dry state prior to the water.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: March 19, 1996
    Inventor: Giacomo Bandino
  • Method of washing and drying clothes
    Patent number: 5498266
    Abstract: In a dry cleaner, after clothes 2 is washed, the washing solvent contained in the washed clothes 2 is dissolved into a liquid perfluorocarbon 4a being heated at its boiling point or thereabout in order to remove the washing solvent. Thereafter, drying of the clothes 2 is performed by mainly aiming to evaporate the liquid perfluorocarbon 4a contained in the clothes 2. Since the drying is targeted on the liquid perfluorocarbon, the time required for drying clothes can markedly reduced.
    Type: Grant
    Filed: June 9, 1994
    Date of Patent: March 12, 1996
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Hiroyuki Takagawa, Yasuhiro Tsubaki, Yoshio Miyairi, Toshio Hattori, Haruo Hagiwara
  • Grease composition for high-temperature, high-speed and high-load bearings
    Patent number: 5498357
    Abstract: A grease composition for high-temperature, high-speed and high-load bearings comprises (i) a lubricating base oil composed of an alkyldiphenyl ether lubricant as an essential ingredient and having a kinematic viscosity of 90-160 cSt at 40.degree. C., and (ii) 22-30 wt. %, based on the grease composition, of a diurea compound as a thickener. The diurea compound is represented by the following formula: ##STR1## wherein R.sub.2 means an aromatic hydrocarbon group having 6-15 carbon atoms, R.sub.1 and R.sub.3 denote an aromatic hydrocarbon group having 6-12 carbon atoms or a linear alkyl group having 8-20 carbon atoms, and the proportion of aromatic hydrocarbon groups in R.sub.1 and R.sub.3 is 70-95 mole %. The NLGI thickness grade of said composition is in a range of from No. 1 to No. 3.
    Type: Grant
    Filed: December 27, 1993
    Date of Patent: March 12, 1996
    Assignees: NSK Ltd., Kyodo Yushi Co., Ltd.
    Inventors: Michiharu Naka, Hideki Koizumi, Yuzo Takahashi, Koici Goto, Toshiaki Endo, Yoichi Suzuki
  • Electrolyte for electrolytic capacitor
    Patent number: 5496481
    Abstract: An electrolyte for aluminum electrolytic capacitors comprises a triakylamine having from 8 to 12 carbon atoms, a solvent and a carboxylic acid having at least 4 carbon atoms. The preferred solvent is a combination of butyrolactone with ethylene glycol and the preferred triakylamines are tripropylamine, tributylamine and N,N-diisopropylethylamine.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: March 5, 1996
    Assignee: Boundary Technologies, Inc.
    Inventor: Yanming Liu
  • Adhesive plastic scintillator
    Patent number: 5496502
    Abstract: An adhesive plastic scintillator which can be attached onto a solid support medium such as a microtiter plate, either by melting it in and/or on a solid support medium because the plastic scintillator is capable of being changed between solid and liquid phases, whichever is desired, by temperature control, or by deposition from a solution of said adhesive plastic scintillator. The plastic scintillator is for analyzing radioactive samples and comprises fluorescent substances and optionally energy transfer compounds for converting radiation energy into light energy. The plastic scintillator remains transparent upon transition from the liquid to the solid state, and upon the same transition adheres to the solid support medium.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: March 5, 1996
    Assignee: Packard Instrument, B.V.
    Inventor: James Thomson
  • Method for stabilizing the hygral expansion behavior of protein fiber products
    Patent number: 5494487
    Abstract: Disclosed is a method comprising: a step in which a polyoxirane derivative of PEGDE or PPGDE having a water-dissolving rate of not less than 95 % by weight is dissolved in a solvent which has a solubility parameter of 13.0-10.1 (cal/cm.sup.3).sup.1/2, has a boiling point in a range of 101.degree.-190.degree. C.
    Type: Grant
    Filed: March 7, 1994
    Date of Patent: February 27, 1996
    Assignee: Tuyaku Co., Ltd.
    Inventor: Sachizumi Koike
  • Method of preparing leather from unhaired hides
    Patent number: 5492539
    Abstract: Tanning agents containing an .omega.,.omega.-dialdehyde as as the active tanning substance, optionally in a deactivated form, in combination with a polymer containing hydroxyl groups, and methods for using such tanning agents in the preparation of leather, particularly in pickling, tanning, and retanning.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: February 20, 1996
    Assignee: Rohm GmbH
    Inventors: Harald Bauer, Juergen Christner, Gertrud Wick
  • Method for improving the efficiency of an engine
    Patent number: 5492637
    Abstract: A method for lubricating engine parts, in which kerosene is added to engine lubricating oil. Upon running the engine, the kerosene is circulated through the engine, acting as a solvent to remove any deposits within the engine and cause the deposits to be expelled through the exhaust system.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: February 20, 1996
    Inventor: Edward J. Lehti
  • Magnetic fluid composition
    Patent number: 5487840
    Abstract: A magnetic fluid composition comprising a low-volatile organic solvent as a carrier having dispersed therein ferromagnetic fine particles coated with a surface active agent having a lipophilic group having affinity to said low-volatile organic solvent, and a thixotropy-imparting agent is disclosed. The composition is prevented from splashing for an extended period of time even when used in a magnetic fluid-sealed apparatus operated at such a high speed that the rotational speed of the sealing part is 2 m/sec or higher.
    Type: Grant
    Filed: January 5, 1994
    Date of Patent: January 30, 1996
    Assignee: NSK Ltd.
    Inventors: Toshikazu Yabe, Atsuhiro Yamamoto, Atsushi Yokouchi, Kunio Esumi
  • Cleaning through perhydrolysis conducted in dense fluid medium
    Patent number: 5486212
    Abstract: The invention provides a cleaning agent and method for removing stains from fabrics comprising a combination of dense gas, a source of hydrogen peroxide and an organic bleach activator therefor.
    Type: Grant
    Filed: March 15, 1995
    Date of Patent: January 23, 1996
    Assignee: The Clorox Company
    Inventors: James D. Mitchell, Vincent E. Alvarez, Daniel T. Carty, James R. Latham
  • Air bag fabric containing graft polymer thereon
    Patent number: 5486210
    Abstract: A method for making an air bag by forming a fabric structure of filaments or yarns in the configuration of an air bag, and grafting first and/or second components onto some or all of the filaments or yarns to provide the fabric structure with increased resistance to fraying, filament or yarn pull-out, or distortion during manufacture or use of the air bag compared to non-grafted filaments or yarns. The graft component(s) may be applied to the filaments or yarns prior to, during or after formation of the fabric structure. An air bag material suitable for use in a passive restraint system is also disclosed utilizing grafted fabric substrate provided by the above described method. A passive restraint system utilizing such fabrics is also described.
    Type: Grant
    Filed: January 30, 1992
    Date of Patent: January 23, 1996
    Assignee: Reeves Brothers, Inc.
    Inventors: Richard C. Kerr, John R. Damewood, Jill Menzel, Paul Thottathil, Mohan L. Sanduja