Patents Examined by Sharon Gibson
  • Patent number: 5626786
    Abstract: A class of fire suppressant compounds which have labile bromine atoms bound to atoms other than carbon have been discovered to be more effective at suppressing fires than Halon 1211 and Halon 1301. Moreover, this class of fire suppressant compounds hydrolyze or oxidize rapidly in the troposphere and as a consequence thereof, they have minimal ozone depletion potential.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: May 6, 1997
    Inventors: John H. Huntington, Peter D. Haaland
  • Patent number: 5627145
    Abstract: A method for controlling phosphonates which tend to precipitate with metal ions in water treatment operations comprising, adding to the water a water-soluble copolymer containing one or more of the following monomeric units: ##STR1## in which: R is hydrogen or an alkyl group, R.sub.1 is an alkyl group and X is hydrogen, NH.sub.4.sup.+, a water soluble metal ion or organic base; and[b] a monocarboxylic acid monomer; and adding the copolymer to the water to be treated in an amount sufficient to prevent precipitation of said phosphonates.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: May 6, 1997
    Assignee: BetzDearborn Inc.
    Inventor: Peter K. L. G. Thevissen
  • Patent number: 5626787
    Abstract: A fire extinguishing composition is disclosed consisting essentially of a mixture of (i) desiccated expanded perlite (aluminum silicate) and (ii) mono- and di-ammonium phosphates. The phosphate fraction of the composition preferably includes urea, ammonium chloride, glycerine and mono-ethylene glycol.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: May 6, 1997
    Inventor: Ronald A. Porter
  • Patent number: 5627144
    Abstract: Detergent compositions comprised of an alkyl polyglycoside and an ester quat corresponding to formula (II) ##STR1## wherein R.sup.2 CO is an aliphatic acyl radical containing 12 to 22 carbon atoms and 0, 1, 2 or 3 double bonds, n=2 or 3 and X stands for halide, methosulfate or methophosphate ion are provided which are useful for the production of surface-active agents and for the enhanced recovery of crude oil.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 6, 1997
    Assignees: Henkel Kommanditgesellschaft auf Aktien, Pulcra S.A., Henkel Corporation
    Inventors: Allen D. Urfer, Oriol P. Obiols, Nuria Bonastre
  • Patent number: 5624607
    Abstract: A fire resistant composition for forming a fire resisting lining is characteristically and substantially composed of ettringite contained as a main ingredient. A panel that is attachable to a building body so as to form an external wall thereof is composed of a base plate and the fire resisting lining that contains ettringite as its main ingredient and covers the base plate. A structure of an external wall of buildings, the structure has the panels attached to the building body to form a plane and having their sides adjoined one to another, and the base plate in each panel has a periphery not covered with the lining. A groove-shaped cavity appearing between the adjacent lining edges facing one another is filled with a caulking material, so that the fire resistance afforded by the composition and the panels is further enhanced.
    Type: Grant
    Filed: July 26, 1995
    Date of Patent: April 29, 1997
    Assignee: Stylite Kogyo Co., Ltd.
    Inventors: Masami Kanai, Tadashi Sakai
  • Patent number: 5624918
    Abstract: The present invention provides a phosphonic diester derivative of the following general formula (1): ##STR1## wherein A represents an oxygen atom or a sulfur atom; R.sup.1, R.sup.2, R.sup.9 and R.sup.10 are the same or different and they each represent a hydrogen atom, a lower alkoxy group, a nitro group, a lower alkyl group, a halogen-substituted lower alkyl group or a halogen atom; R.sup.3 represents a phenyl group, --B--R.sup.6 (wherein B represents an oxygen atom or a sulfur atom and R.sup.6 represents a hydrogen atom, a lower alkyl group, a cycloalkyl group, a phenyl group, a phenyl(lower)alkyl group optionally having a halogen atom as a substituent on the phenyl ring, a phenoxy(lower)alkyl group, a lower alkoxycarbonyl(lower)alkyl group, a carboxy(lower)alkyl group or a lower alkenyl group) or --NR.sup.7 R.sup.8 (wherein R.sup.7 and R.sup.
    Type: Grant
    Filed: February 5, 1995
    Date of Patent: April 29, 1997
    Assignee: Otsuka Pharmaceutical Factory, Inc.
    Inventors: Yasuhisa Kurogi, Kazuyoshi Miyata, Shizuo Nakamura, Mitsuyoshi Kondo, Takeshi Iwamoto, Chieko Naba, Yoshihiko Tsuda, Yasuhide Inoue, Jun Kanaya, Keigo Sato
  • Patent number: 5622647
    Abstract: A method for dewatering coal tailings, clean coal products and mineral slurries, as well as for the clarification of water contained in coal refuse slurries, employing a copolymer of diallyldimethlylammonium halide and a vinyl alkoxysilane, which is preferably a copolymer of diallyldimethylammonium chloride and vinyltrimethoxysilane as a coagulant is disclosed.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: April 22, 1997
    Assignee: Nalco Chemical Company
    Inventors: E. Michael Kerr, Manian Ramesh
  • Patent number: 5622919
    Abstract: A composition and method for acidizing a formation in the presence of ferric ion, free sulfur and/or sulfides is disclosed. The composition employs a ferric ion reducing agent and a sulfide reactant separately or in combination. The ferric ion reducing agent is a thioalkyl acid. The sulfide reactant compounds include .alpha.-diketones and saturated and .alpha.-unsaturated cyclic ketones. In another aspect, the reducing activity of the thioalkyl acid is accelerated by the presence of a catalytic quantity of a compound or mixture of compounds which yield in acid solution cuprous ion, cupric ion or combinations thereof with iodide ion.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: April 22, 1997
    Assignee: Halliburton Company
    Inventors: Michael M. Brezinski, Tommy R. Gardner, Karen L. King, James L. Lane, Jr.
  • Patent number: 5622646
    Abstract: Bleaching compositions useful for laundering fabrics comprising a metal bleach catalyst and an effective amount of an antioxidant.
    Type: Grant
    Filed: February 13, 1996
    Date of Patent: April 22, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Stefano Scialla, Alastair J. Pretty
  • Patent number: 5620947
    Abstract: A water-based well completion and workover fluid is disclosed which has improved rheological and filtration control properties at temperatures up to about 450.degree. F. The composition comprises a saturated brine solution, a sized-salt that is insoluble in the saturated brine solution, and a water-soluble filtration additive comprising a polymer produced from at least two monomers selected from the group consisting of 2-acrylamido-2-methylpropanesulfonate, acrylamide, and 2-vinylpyrrolidone.
    Type: Grant
    Filed: December 27, 1994
    Date of Patent: April 15, 1997
    Assignee: Exxon Production Research Company
    Inventor: Julianne Elward-Berry
  • Patent number: 5616273
    Abstract: This invention relates to synergistic surfactant compositions based on water insoluble amphoteric fluorochemical surfactants and water soluble anionic hydrocarbon or fluorochemical surfactants of the sulfate or sulfonate type and aqueous film forming foam agents derived from such synergistic surfactant compositions and a method to treat the aqueous waste stream generated by such aqueous film forming foam agents.
    Type: Grant
    Filed: August 11, 1994
    Date of Patent: April 1, 1997
    Assignee: Dynax Corporation
    Inventors: Kirtland P. Clark, Eduard K. Kleiner
  • Patent number: 5616280
    Abstract: A bleaching composition for cellulosic materials such as paper pulp, cotton and cotton blends. The chemical system of the present invention includes a mixture of sodium hydroxide, optical brighteners and an enhanced hydrogen peroxide composition including a silicate-free stabilizer. In the preferred embodiment, the silicate-free stabilizer includes a magnesium salt; an aminoalkylphosphonic acid; dipicolinic acid; and the balance water. The resulting textile goods are soft, absorbent, silicate-free with a Hunter Scale whiteness of greater than about 85. Because a silicate-free stabilizer is used, low levels of extractable solids are obtained.
    Type: Grant
    Filed: November 6, 1995
    Date of Patent: April 1, 1997
    Assignee: Burlington Chemical Co., Inc.
    Inventors: Samuel B. Moore, James F. Leuck, Edwin T. Turner
  • Patent number: 5616281
    Abstract: The present invention relates to acylated citrate esters to be used as peracid precursors in a bleaching or a disinfecting operation. The present invention encompasses the use of these acylated citrate esters, granular or liquid compositions comprising the acylated citrate esters. Activating compositions are described as well as activated bleaching compositions.
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: April 1, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Frederick E. Hardy, Alan D. Willey, Stefano Scialla
  • Patent number: 5612372
    Abstract: Dispersant pesticide compositions which comprise a pesticide and a salt or partial salt of an alkyl substituted amine and a phosphonic acid.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: March 18, 1997
    Assignee: IBC Manufacturing Company
    Inventor: Michael H. West
  • Patent number: 5611210
    Abstract: A new set of effective, environmentally safe, nonflammable, low-toxicity refrigerants, solvents, foam blowing agents, propellants, and firefighting agents is disclosed. The agents are clean, electrically nonconductive, and have short atmospheric lifetimes, zero ozone-depletion potential, and low global warming potentials. The agents comprise at least one fluoroiodocarbon agent satisfying the general formula C.sub.a H.sub.b Br.sub.c Cl.sub.d F.sub.e I.sub.f N.sub.g O.sub.h, wherein a is between and including 1 and 8; b is between and including 0 and 2; c, d, g, and h are each between and including 0 and 1; e is between and including 1 and 18; and f is between and including 1 and 2, either neat or mixed with additives selected from the group consisting of: alcohols, esters, ethers, fluoroethers, hydrocarbons, hydrofluorocarbons, and perfluorocarbons.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: March 18, 1997
    Assignee: Ikon Corporation
    Inventors: Jonathan S. Nimitz, Lance H. Lankford
  • Patent number: 5609787
    Abstract: A method for extinguishing fire uses a gaseous fire-extinguishing agent having as an active component thereof a polyfluoro-tertiary amine represented by the following formula:(CF.sub.3).sub.2 NRfwherein Rf stands for a polyfluoroalkyl group of 1-4 carbon atoms or a polyfluoroalkenyl group of 1-4 carbon atoms.
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: March 11, 1997
    Assignee: Agency of Industrial Science & Technology, Ministry of International Trade & Industry
    Inventors: Takashi Abe, Haruhiko Fukaya, Eiji Hayashi, Yoshio Hayakawa
  • Patent number: 5610359
    Abstract: A method of generating nontoxic smoke is taught. The method comprises: (a) submerging a nontoxic smoke creating device in a liquid coolant while preventing entry of coolant into said device; said device includes a composition which comprises: (1) a first reactant selected from the group consisting of potassium chlorate, potassium perchlorate, potassium dichromate, cesium nitrate, and potassium nitrate; and (2) a second reactant serving as a reduction agent; (b) activating said smoke creating device by reacting said composition comprising said first reactant and said second reactant, to create solid particulate products having a diameter of about one micron or less which create the nontoxic smoke; and (c) passing said solid particulate products into said coolant through at least one downwardly directed tuyere hydraulically connected at or near the top of said device without any accompanied destruction of said nontoxic smoke creating device.
    Type: Grant
    Filed: October 25, 1994
    Date of Patent: March 11, 1997
    Inventors: Yechiel Spector, Esther Jacobson, Vida Naishtut, Michael Vittenberg, Zohar Beinert
  • Patent number: 5607619
    Abstract: A process for leaching gold, silver, platinum and palladium wherein an aqueous leaching solution containing bromine and bromide ion contacts a precious metal source to produce an aqueous leachate. A precursor composition for producing an aqueous leaching solution for leaching gold, silver, platinum and palladium. A process for electrogenerating bromine and a process for leaching gold, silver, platinum and palladium wherein bromine is electrogenerated and contacts a precious metal source to produce an aqueous leachate. A process for leaching gold, silver, platinum and palladium wherein bromine is electrogenerated from a solution containing chloride ions and bromide ions.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 4, 1997
    Assignee: Great Lakes Chemical Corporation
    Inventors: Ahmad Dadgar, Jonathan N. Howarth, Rodney H. Sergent, Nicolai A. Favstritsky, Julie A. McKeown, Dennis W. Borden, Brent M. Sanders, Jane Likens
  • Patent number: 5605647
    Abstract: A new set of effective, environmentally safe, nonflammable, low-toxicity refrigerants, solvents, foam blowing agents, propellants, and firefighting agents is disclosed. The agents are clean, electrically nonconductive, and have short atmospheric lifetimes, zero ozone-depletion potential, and low global warming potentials. The agents comprise at least one fluoroiodocarbon agent satisfying the general formula C.sub.a H.sub.b Br.sub.c Cl.sub.d F.sub.e I.sub.f N.sub.g O.sub.h, wherein a is between and including 1 and 8; b is between and including 0 and 2; c, d, g, and h are each between and including 0 and 1; e is between and including 1 and 18; and f is between and including 1 and 2, either neat or mixed with additives selected from the group consisting of: alcohols, esters, ethers, fluoroethers, hydrocarbons, hydrofluorocarbons, and perfluorocarbons.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: February 25, 1997
    Assignee: Ikon Corporation
    Inventors: Jonathan S. Nimitz, Lance H. Lankford
  • Patent number: 5605918
    Abstract: This invention relates to novel 5-[3-aryl-prop-2-ynyl]-5-(arylsulfonyl)thiazolidine-2,4-diones and 5-[3-aryl-prop-2-ynyl]-5-(arylsulfanyl)thiazolidine-2,4-diones characterized by the general formula (I), seen below, wherein Ar is phenyl, 2-naphthyl, alkyl substituted phenyl, alkoxy substituted phenyl, halogen substituted phenyl, 2-pyridinyl, substituted 2-pyridinyl, 3-pyridinyl, 4-pyridinyl, 2-quinolinyl, 2-pyrimidinyl, 2-benzoxazolyl, 2-benzthiazolyl, 2-benzimidazolyl, 2-furanyl, 2-benzo-[b]-furanyl, 2-thienyl, or 2-benzo-[b]-thienyl; n is 0 or 2; and Ar' is phenyl, alkyl substituted phenyl, perfluoroalkyl substituted phenyl, halogen substituted phenyl, alkoxy substituted phenyl, perfluoroalkoxy substituted phenyl or alkylthio substituted phenyl: ##STR1## This invention also relates to the use of the abovementioned compounds in lowering the blood glucose levels in hyperglycemic mammals and pharmaceutical compositions containing the same.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: February 25, 1997
    Assignee: American Home Products Corporation
    Inventors: Jay E. Wrobel, Zenan Li, Arlene J. Dietrich