Patents Examined by Robert L. Stoll
  • Bleaching composition
    Patent number: 5330677
    Abstract: A bleaching composition comprises (a) hydrogen or a peroxide to produce hydrogen peroxide in its aqueous solution and (b) an organic peracid precursor having the formula (I) in which a quaternary ammonium is connected with an alkyl through an ether, an amide or an ester.
    Type: Grant
    Filed: August 5, 1992
    Date of Patent: July 19, 1994
    Assignee: Kao Corporation
    Inventors: Kohshiro Sotoya, Muneo Aoyagi, Nobuyuki Ogura, Youhei Kaneko
  • Alkinyl-derivatives and their use in liquid crystalline mixtures
    Patent number: 5328637
    Abstract: Compounds of the formula ##STR1## and liquid crystalline mixtures containing same.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: July 12, 1994
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Richard Buchecker, Martin Schadt
  • Acyloxynitrogen peracid precursors
    Patent number: 5328634
    Abstract: The invention provides novel bleaching compositions comprising peracid precursors having oxynitrogen leaving groups. Peracid precursors containing these leaving groups provide new, proficient and cost-effective compounds for fabric bleaching.These compounds have the general structures: ##STR1## wherein R is a straight or branched chain C.sub.1-20 alkyl, alkoxyl, cycloalkyl and mixtures thereof; R.sup.1 contains at least one carbon atom which is singly bonded directly to N; n is an integer from 1 to 6 and X is methylene or a heteroatom; or ##STR2## wherein n is the same as in (I); but R.sup.2 contains a carbon atom doubly bonded directly to N, and, either X is a heteroatom, R is C.sub.4-17 alkyl or both.
    Type: Grant
    Filed: January 13, 1992
    Date of Patent: July 12, 1994
    Assignee: The Clorox Company
    Inventor: Alfred G. Zielske
  • Liquid-crystalline medium
    Patent number: 5328642
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it contains one or more compounds of the general formula I ##STR1## in which Q is alkylene having up to 5 carbon atoms or a single bond, X is H or F, and R is alkyl, oxaalkyl, fluoroalkyl or alkenyl, in each case having up to 7 carbon atoms.
    Type: Grant
    Filed: February 11, 1992
    Date of Patent: July 12, 1994
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Bernhard Rieger, Volker Reiffenrath, Reinhard Hittich
  • Composition and method of use for liposome encapsulated compounds for neutron capture tumor therapy
    Patent number: 5328678
    Abstract: Liposomes with hyperosmotic concentration of compounds encapsulated therein are targeted to tumors for neutron capture therapy. The compounds have an element with a large neutron capture cross section and an isotope that emits alpha particles when bombarded with neutrons. A method employing such liposomes for neutron capture therapy is also described.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: July 12, 1994
    Assignee: Vestar, Inc.
    Inventors: Gary Fujii, Paul G. Schmidt, Ronald C. Gamble
  • Oil soluble dispersant additives modified with monoepoxy monounsaturated compounds
    Patent number: 5328622
    Abstract: An oil soluble dispersant comprising the reaction products of:(1) at least one of (i) oil soluble salts, amides, imides, oxazolines, esters, or mixtures thereof of long chain hydrocarbyl substituted mono- and dicarboxylic acids or their anhydrides or esters, (ii) long chain hydrocarbon having a polyamine attached directly thereto, and (iii) long chain hydrocarbyl-substituted Mannich condensation products containing at least one reactive group selected from reactive amino groups and reactive hydroxyl groups; and(2) at least one monoepoxide monounsaturated linking reactant.
    Type: Grant
    Filed: January 5, 1993
    Date of Patent: July 12, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jacob Emert, Antonio Gutierrez, Robert D. Lundberg
  • Gel promoters for silica sols
    Patent number: 5328645
    Abstract: An alkoxysilane sol-gel composition and method for its production are disclosed whereby an alkoxysilane of the general formulaSi(OR).sub.4wherein R is an organic radical such as methyl, ethyl, propyl or butyl is hydrolyzed with an acid catalyst and the resulting acidic sol is further hydrolyzed and condensed in the presence of an alkaline component which accelerates gelation to form an inorganic oxide network.
    Type: Grant
    Filed: January 4, 1989
    Date of Patent: July 12, 1994
    Assignee: PPG Industries, Inc.
    Inventors: Chia-Cheng Lin, John D. Basil
  • Bifunctional isothiocyanate derived thiocarbonyls as ligands for metal binding
    Patent number: 5326856
    Abstract: This invention relates to chelating agents useful for coupling metal ions to biologically active molecules. In particular, isothiocyanate derived thiocarbonyls for chelating metals such as technetium are provided that can be conjugated to a targeting molecule such as an antibody, a peptide or a protein.
    Type: Grant
    Filed: April 9, 1992
    Date of Patent: July 5, 1994
    Assignee: Cytogen Corporation
    Inventors: Daniel J. Coughlin, Benjamin A. Belinka, Jr.
  • Compensator for liquid crystal display
    Patent number: 5326496
    Abstract: A compensator for liquid crystal display which is composed of:a light transmitting base;an alignment layer formed on said base; anda film formed on said alignment layer by a liquid crystalline polymer which exhibits a twisted nematic orientation in the state of liquid crystal and which assumes the state of glass at a temperature below the liquid crystal transition point thereof.
    Type: Grant
    Filed: November 8, 1993
    Date of Patent: July 5, 1994
    Assignees: Nippon Oil Company Limited, Ricoh Company Limited
    Inventors: Shigeki Iida, Takehiro Toyooka, Yasuyuki Takiguchi, Takamichi Enomoto
  • Nuclear imaging uses of radio-labelled atrial natriuretic factor
    Patent number: 5326551
    Abstract: Uptake, binding, and/or displacement of atrial natriuretic factor in a target organ of a mammal can be quantified by nuclear imaging. A diagnostically effective amount of a radio-labelled mammalian atrial natriuretic factor, active fragment or analog thereof is administered to a live mammal, and the live mammal or a portion thereof is subsequently imaged at one or more time intervals using a suitable radio-detecting device to quantify the uptake, binding and/or displacement of the radio-labelled atrial natriuretic factor, fragment or analog in one or more target organs.
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: July 5, 1994
    Assignees: L'Istitut de Recherches Cliniques de Montreal, L'Hotel-Dieu de Montreal
    Inventors: Pavel Hamet, Johanne Tremblay, Raymond Lamberet, Jean Leveille
  • Radiopharmaceuticals for imaging the heart
    Patent number: 5324502
    Abstract: Radiopharmaceuticals for imaging myocardial tissues are prepared by forming lipophilic, cationic complexes of radioactive metal ions with metal chelating ligands comprising the Schiff base adducts of triamines and tetraamines with optionally substituted salicylaldehydes. The lipophilic, cationic, radioactive complexes of the invention exhibit high uptake and retention in myocardial tissues. Preferred gallium-68(III) complexes in accordance with this invention can be used to image the heart using positron emission tomography.
    Type: Grant
    Filed: April 2, 1992
    Date of Patent: June 28, 1994
    Assignee: Purdue Research Foundation
    Inventors: Mark A. Green, Brenda W. Tsang
  • Lactic acid derivatives and liquid crystal compositions containing the same
    Patent number: 5324451
    Abstract: A compound represented by formula (I): ##STR1## wherein R.sub.1 represents an alkyl group having from 1 to 18 carbon atoms; R.sub.2 represents an alkyl group having from 2 to 16 carbon atoms; rings A, B, C, and D each represents a 1,4-phenylene group or a 1,4-phenylene group having one or two halogen atoms; Y represents a single bond, ##STR2## m and n each represents 0 or 1; p represents 0, 1, or 2; q represents 0 or an integer of from 1 to 6; and C* and C** each represents an asymmetric carbon atom in an (S)- or (R)-configuration, and a liquid crystal composition containing the compound of formula (I). The compound of formula (I) is a chiral liquid crystal compound exhibiting large spontaneous polarization, a long helical pitch, an SC* phase in a broad temperature range including room temperature, satisfactory orientation, and a high rate of response.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: June 28, 1994
    Assignees: Dainippon Ink and Chemicals, Inc., Kawamura Institute of Chemical Research
    Inventors: Sadao Takehara, Tadao Shoji, Hiroshi Ogawa, Toru Fujisawa, Masashi Osawa
  • One stage coal gasification process
    Patent number: H1325
    Abstract: An improved one stage, upflow process for coal gasification whereby a dry particulate carbonaceous material and an oxygen-containing gas are combusted in a vertical gasifier thereby converting the carbonaceous material (coal) into a hot gas. The hot, entrained flyslag gas is then contacted with a cooled, recycled gas in a quench zone, thus cooling the gaseous product stream and causing the molten slag particles to convert to nonsticky flyslag particles. The high level thermal energy from the flyslag-laden gaseous product stream is recovered in a fire tube heat exchanger and the flyslag particles from the gaseous product stream are separated by conventional means and recycled back to the gasifier. The product raw gas is further treated for use in a gas turbine to produce electricity.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: July 5, 1994
    Assignee: Shell Oil Company
    Inventors: Egon L. Doering, Phillip E. Unger, Eugene Alsandor
  • Method for purifying amine gas sweetening systems by addition of CO.sub.2
    Patent number: H1327
    Abstract: A method for removing dissolved solids or sludge from amine absorbing solutions for acidic gas in gas sweetening systems is provided comprising contacting a stream of regenerated absorbing solution with CO.sub.2 such that the sludge forms a precipitate and removing the precipitate from the absorbing solution. The stream of absorbing solution may then be returned to a regenerator for removal of CO.sub.2 or returned to the gas sweetening system with the regenerated absorbing solution.
    Type: Grant
    Filed: September 25, 1990
    Date of Patent: July 5, 1994
    Assignee: Exxon Production Research Company
    Inventors: Michael E. Moir, William A. Rendall
  • Thermal conductive material
    Patent number: H1332
    Abstract: A three-dimensional arrangement of carbon fibers made from mesophase pitch are used to reinforce polymer resins to form a composite material. The composite material exhibits high thermal conductivity values on all axes through the composite.
    Type: Grant
    Filed: January 27, 1992
    Date of Patent: July 5, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Clifford K. Deakyne, John G. Lavin
  • High strength reinforcement
    Patent number: H1333
    Abstract: Cord (36) reinforced composites 26 for tires (10) or the like having cords 36 in a diameter range of 0.30 mm to 1.6 mm with a cord break strength (CBL) of N(720.4D.sup.2 -352.6D.sup.3)CE.
    Type: Grant
    Filed: March 21, 1990
    Date of Patent: July 5, 1994
    Inventors: Farrel B. Helfer, Dong K. Kim, John G. Morgan, Robert M. Shemenski, Italo M. Sinopoli, Guy Jeanpierre, Gia V. Nguyen
  • High temperature molten salt thermal cell
    Patent number: H1335
    Abstract: A high temperature molten salt thermal cell is provided including an alkali etal containing anode, a molten lithium halide electrolyte and at least one binary sulfide of chromium as the cathode.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: July 5, 1994
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Edward J. Plichta, Wishvender K. Behl
  • Silver halide photographic material
    Patent number: H1336
    Abstract: A silver halide photographic material comprising a support having provided thereon a silver halide emulsion layer, in which said silver halide emulsion layer contains at least one sensitizing dye selected from the group consisting of a compound represented by formula (I): ##STR1## and a compound represented by formula (II): ##STR2## and at least one of said silver halide emulsion layer and other hydrophilic colloidal layers contains a dye represented by formula (III): ##STR3## wherein the substituents of the formulas (I), (II) and (III) are as described in the specification. The photographic material exhibits excellent performance properties in terms of sensitivity to light emitted from an Hc-Ne laser or an LED, safety from safelight, and freedom from color remaining after processing.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: July 5, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Koichi Kuno, Tetsuo Yoshida, Masahiro Okada, Shigeru Ohno
  • Process for biodegradatioon of soil contaminants that contain volatile/semivolatile components
    Patent number: H1337
    Abstract: A biodegradation apparatus comprising an enclosed vessel for holding a large volume of soil contaminated with hydrocarbons. Air diffusers uniformly within the vessel force moistened air through the vessel thereby removing volatile hydrocarbons from the contaminated soil. Outgoing air is supplied to vapor phase bioreactor for the removal of hydrocarbon contaminants from outgoing air. The outgoing air is next supplied to a granular activated carbon filter system which absorbs remaining hydrocarbons and then expels non-polluted air into the atmosphere concluding phase one treatment of the hydrocarbon contaminated soil. Phase two treatment of the hydrocarbon contaminated soil is initiated by utilizing high pressure injection nozzles to force water with surfactant additives through the soil thereby forming at the upper portion of the enclosed vessel a supernatant which includes hydrocarbon contaminants.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: July 5, 1994
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Ronald E. Hoeppel
  • Aqueous process for recycling acetal polymer and moldings thereof
    Patent number: H1339
    Abstract: This invention relates to an aqueous process for recycling polyacetal, and moldings thereof, into formaldehyde monomer solution, said process occurring at elevated temperature and pressure and in the presence of an acid decomposition catalyst, such as sulfuric acid. The resultant formaldehyde monomer solution can be reacted to form trioxane and then be cycled into a trioxane-based polyacetal manufacturing process or, alternatively, it can be further treated and then be cycled into a formaldehyde-monomer-based polyacetal manufacturing process.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: July 5, 1994
    Inventor: Leslie M. Blair