Patents Examined by Joseph E. Evans
  • Poly-perfluoroalkyl-substituted alcohols and acids, and derivatives thereof
    Patent number: 5491261
    Abstract: Di-, tri- and poly-perfluoroalkyl-substituted alcohols and acids and derivatives thereof are described which are prepared from perfluoroalkyl iodides and di-, tri- or polyallyl alcohols or acids. These compounds contain two or more perfluoroalkyl-iodoalkyl or perfluoroalkyl-alkenyl groups and one or two alcohol or acid groups or derivatized alcohol or acid functions. They can be reacted with isocyanates, epoxy compounds, anhydrides, acids or acid derivatives to prepare a great variety of oil- and water-repellent compositions which are useful for oil- and water-repellent treatment of textiles, glass, paper, leather and other substrates.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: February 13, 1996
    Assignee: Ciba-Geigy Corporation
    Inventors: Marlon Haniff, Robert Falk, Ted Deisenroth, Karl F. Mueller
  • Reactions catalyzed by haloporphyrins
    Patent number: 5489716
    Abstract: The invention provides novel methods for the oxidation of hydrocarbons with oxygen-containing gas to form hydroxy-group containing compounds and for the decomposition of hydroperoxides to form hydroxygroup containing compounds. The catalysts used in the methods of the invention comprise transition metal complexes of a porphyrin ring having 1 to 12 halogen substituents on the porphyrin ring, at least one of said halogens being in a meso position and/or the catalyst containing no aryl group in a meso position. The catalyst compositions are prepared by halogenating a transition metal complex of a porphyrin.
    Type: Grant
    Filed: September 7, 1994
    Date of Patent: February 6, 1996
    Assignee: Sun Company, Inc. (R&M)
    Inventors: Paul E. Ellis, Jr., James E. Lyons
  • Complex hydrophobe compounds
    Patent number: 5488180
    Abstract: This invention relates to complex hydrophobe compounds and to alkoxylation products, i.e., condensation reaction products of alkylene oxides and complex hydrophobe compounds having at least one active hydrogen. This invention also relates to alkoxylation products that have beneficial, narrow molecular weight ranges.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: January 30, 1996
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Richard D. Jenkins, David R. Bassett, Danny E. Smith, John N. Argyropoulos, James E. Loftus, Gregory D. Shay
  • Process for the preparation of alkylene glycols
    Patent number: 5488184
    Abstract: A process for the preparation of alkylene glycols comprising reacting an alkylene oxide with water in the presence of a catalyst composition comprising a solid material having one or more electropositive sites, which are coordinated with one or more anions other than metalate or halogen anions, with the proviso that when the solid material is an anionic exchange resin of the quaternary ammonium type and the anion is bicarbonate, the process is performed in the substantial absence of carbon dioxide.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: January 30, 1996
    Assignee: Shell Oil Company
    Inventors: Willem G. Reman, Eugene M. G. A. Van Kruchten
  • Process for producing optically active erythro-3-amino-1,2-epoxy compound
    Patent number: 5488118
    Abstract: The present invention relates to a process for producing an optically active erythro-3-amino-1,2-epoxy compound represented by the following general formula (3): ##STR1## wherein R1 represents a hydrocarbon residue having 3 to 12 carbon atoms; and R2 represents optionally protected amino, provided that when the carbon atom at the *3-position has an S configuration, then the carbon atom at the *2-position has an S configuration, and when the carbon atom at the *3-position has an R configuration, then the carbon atom at the *2-position has an R configuration.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: January 30, 1996
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Taichi Koshigoe, Hitoshi Satoh, Kenichi Yamamoto
  • Process for the production of ethanol and isopropanol
    Patent number: 5488185
    Abstract: An ethene stream which contains ethane as an impurity or a propene stream which contains propane as an impurity is hydrated with water vapor in the presence of a hydration catalyst to produce ethanol or isopropanol, respectively. After removal of the alcohol the gaseous product stream is subjected to adsorption, thereby producing an ethene-enriched stream or a propene-enriched stream. The ethene-enriched stream or the propene-enriched stream is recycled to the hydration reactor.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: January 30, 1996
    Assignee: The BOC Group, Inc.
    Inventors: Ramakrishnan Ramachandran, Loc H. Dao
  • Gas phase process for the hydration of propylene
    Patent number: 5488186
    Abstract: A process is presented for the hydration of light olefins to produce C.sub.2 -C.sub.7 aliphatic alcohols with improved selectivity, catalyst productivity and catalyst stability. Acidic medium pore, shape selective metallosilicate catalyst particles are contacted with a feedstream containing light olefin plus water at elevated temperature above the dew point of water, i.e., in a gas phase, wherein the reaction mixture is essentially starved with respect to the mole ratio of water to C.sub.2 -C.sub.7 light olefin. Isopropanol is produced at a selectivity greater than 70 weight percent when the mole ration of water to propylene is between 0.05 and 0.499. Zeolite ZSM-5, ZSM-23, ZSM-35 and ferrierite are preferred catalysts.
    Type: Grant
    Filed: March 22, 1995
    Date of Patent: January 30, 1996
    Assignee: Mobil Oil Corporation
    Inventors: Stephen H. Brown, Jeffrey C. Trewella
  • Method for producing epoxides
    Patent number: 5486627
    Abstract: Described herein is a method for producing epoxides which is continuous, inhibits formation of chlorinated byproducts, and eliminates or substantially reduces waste water discharge. The method includes:(a) forming a low chlorides aqueous hypochlorous acid solution;(b) contacting the low chlorides aqueous hypochlorous acid solution with at least one unsaturated organic compound to form an aqueous organic product comprising at least olefin chlorohydrin;(c) contacting at least the olefin chlorohydrin with an aqueous alkali metal hydroxide to form an aqueous salt solution product containing at least epoxide; and(d) isolating the epoxide from the aqueous salt solution;wherein water is recovered from the product of at least Step (b) and recycled into Step (a) for use in forming the low chlorides aqueous hypochlorous acid solution.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: January 23, 1996
    Assignee: The Dow Chemical Company
    Inventors: George J. Quarderer, Jr., Curtis N. Swisher, David L. Trent
  • Ethylene oxide catalyst and process
    Patent number: 5486628
    Abstract: This invention relates to an ethylene oxide catalyst having improved selectivity stability which catalyst comprises silver, a promoting amount of alkali metal, a promoting amount of rare earth, a promoting amount of rhenium and, optionally, a promoting amount of rhenium co-promoter selected from sulfur, molybdenum, tungsten, chromium and mixtures thereof, supported on a porous refractory support.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: January 23, 1996
    Inventor: Richard A. Kemp
  • Halogenation processes in advantageous solvents, and novel bistrifluoromethyl-polyfluoroalkoxybenzenes
    Patent number: 5484932
    Abstract: Compounds such as ##STR1## wherein R is F, CF.sub.3, CF.sub.2 H, CHF CF.sub.3 or CF.sub.2 CF.sub.3, as well as related compounds containing chlorine, are used as solvents in halogenation processes.
    Type: Grant
    Filed: June 2, 1994
    Date of Patent: January 16, 1996
    Assignee: Bayer Aktiengesellschaft
    Inventor: Albrecht Marhold
  • Process for selective epoxidation of unsaturated (meth)acrylic compounds and new bifunctional (meth)acrylates obtained
    Patent number: 5481012
    Abstract: Process for the epoxidation of an unsaturated (meth)acrylic compound of formula: ##STR1## in which R.sub.1 is chosen from H and C.sub.1 -C.sub.5 -alkyl; R.sub.2 is chosen from H, alkyl and aryl; R.sub.3 is a straight-chain, branched or cyclic alkylene or oxyalkylene radical having from 1 to 12 carbon atoms, it being possible for one of the carbon atoms of R.sub.2, when the latter is an alkyl radical, to be linked to one of the carbon atoms of R.sub.3 to form a ring; and A is chosen from O, S, NH and NR.sub.4, R.sub.4 being a C.sub.1 -C.sub.12 -alkyl group; by the action of hydrogen peroxide on the said unsaturated (meth)acrylic compound, at a temperature of between 10.degree. C. and 50.degree. C., in the presence of at least one catalyst chosen from the alkali metal molybdates and the alkali metal pertungstates and in the presence of at least one phase transfer agent.
    Type: Grant
    Filed: November 3, 1994
    Date of Patent: January 2, 1996
    Assignee: Atochem
    Inventors: Paul Caubere, Yves Fort, Agnes Ortar
  • Process for producing alkadienols
    Patent number: 5481049
    Abstract: The disclosure is a process for producing an alkadienol, which comprises reacting a conjugated alkadiene and water in the presence of carbon dioxide using a palladium compound and a phosphine compound as catalyst, the reaction being carried out with a free phosphine compound present in the reaction solution.
    Type: Grant
    Filed: March 22, 1994
    Date of Patent: January 2, 1996
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Keiichi Sato, Yoko Seto, Iwao Nakajima
  • Process for preparing N-protected amino acid .alpha.-halomethyl ketones and alcohols from N-protected amino acid esters
    Patent number: 5481011
    Abstract: The present invention relates to a novel method useful for the conversion of amino acids to halomethylketones, which are then converted to amino acid epoxides. Such epoxides are important intermediates for the synthesis of inhibitors of renin and HIV protease, which are particularly useful in the treatment and/or prevention of HIV infection (AIDS).
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: January 2, 1996
    Assignee: Bristol-Myers Squibb Company
    Inventors: Ping Chen, Peter T. W. Cheng, Steven H. Spergel, Joel C. Barrish, John K. Thottathil, Robert Zahler, Richard P. Polniaszek, Xuebao Wang
  • Processes for the preparation of fluorinated olefins and hydrofluorocarbons using fluorinated olefin
    Patent number: 5481050
    Abstract: The invention relates to a cost effective and convenient process for the manufacture of fluorinated olefins of the formula RCF.sub.2 CH=CH.sub.2 where R is C.sub.x Cl.sub.y F.sub.z and y+z=2.times.+1. The invention is also directed to a lo practical process for converting these olefins to hydrofluorocarbons via the catalyzed fluorination with hydrogen fluoride. Hydrofluorocarbons produced via this process have application as solvents among other uses.
    Type: Grant
    Filed: March 28, 1995
    Date of Patent: January 2, 1996
    Assignee: AlliedSignal Inc.
    Inventors: Michael Van Der Puy, G. V. Bindu Madhavan, Alagappan Thenappan, Hsueh S. Tung
  • Acid functionalized organically-bridged polysilsesquioxanes as catalysts for acid catalyzed reactions
    Patent number: 5475162
    Abstract: A process of effecting an acid catalyzed reaction wherein a reactant capable of undergoing an acid catalyzed reaction is contacted with an acid functionalized organically-bridged polysilsesquioxane catalyst where all of the acid functionality is covalently bonded to the organic portion of an organically-bridged polysilsesquioxane framework has been developed. The acid functionalized organically-bridged polysilsesquioxane is formed by polymerizing a monomer through sol-gel processing to form an organically-bridged polysilsesquioxane, reacting an acid group onto the organic portion of the organically-bridged polysilsesquioxane, and recovering the acid functionalized product. An embodiment of the invention is where the acid catalyzed reaction is the hydration of olefins, alkylation, acylation, isomerization, or aldol condensation/elimination.
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: December 12, 1995
    Assignee: UOP
    Inventors: Timothy A. Brandvold, Jennifer S. Holmgren, Thomas P. Malloy
  • Process for preparing 3-fluoro-4,6-dichlorotoluene
    Patent number: 5475164
    Abstract: 3-Fluoro-4,6-dichlorotoluene is prepared with reduced formation of 3-fluoro-2,6-dichlorotoluene by chlorinating 3-fluorotoluene in the presence of a catalyst system to give a mixture containing 3-fluoro-6-chlorotoluene and 3-fluoro-4-chlorotoluene and chlorinating this in the presence of another catalyst system to give 3-fluoro-4,6-dichlorotoluene.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: December 12, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventor: Werner Bussmann
  • Epoxidizer oxygen recovery
    Patent number: 5468885
    Abstract: An olefin/oxygen purge gas from the catalytic reaction of the olefin with hydrogen peroxide is contacted with an absorbent liquid such as isopropanol and water to absorb olefin while an inert gas such as methane is added to avoid formation of flammable oxygen-containing gas compositions.
    Type: Grant
    Filed: December 28, 1994
    Date of Patent: November 21, 1995
    Assignee: ARCO Chemical Technology, L.P.
    Inventor: John C. Jubin, Jr.
  • Titanosilicate as an epoxidation catalyst for olefins
    Patent number: 5466835
    Abstract: The oxidation of olefinic compounds generally using hydroperoxides, especially aqueous solutions of hydrogen peroxide, can be effected in high yield and with good selectivity in the presence of a catalyst which is a mixture of small particles of titania and a titanosilicalite. Small particle size is essential in affording a catalyst with good activity and selectivity, with particle sizes no more than about 0.3 microns being the preferred mode of operation. Dilute aqueous hydrogen peroxide solutions may be used with good results. The resulting epoxidation, even when carried out at modest temperatures and with dilute aqueous hydrogen peroxide solutions, afford superior results in epoxidation relative to TS-1.
    Type: Grant
    Filed: May 9, 1994
    Date of Patent: November 14, 1995
    Assignee: UOP
    Inventors: Laszlo T. Nemeth, Thomas P. Malloy, Richard R. Jones
  • Catalytic converter and method for highly exothermic reactions
    Patent number: 5466836
    Abstract: A reactor is provided for carrying out highly exothermic reaction between liquids such as hydrogen peroxide and propylene. The reactor is made up of a series of separate zones containing a packed bed of solid catalyst; liquid from each zone is cooled with the main portion recycled to the same zone and a minor portion passing to the next successive zone.
    Type: Grant
    Filed: September 22, 1994
    Date of Patent: November 14, 1995
    Assignee: ARCO Chemical Technology, L.P.
    Inventor: John C. Jubin, Jr.
  • Process for producing epoxide
    Patent number: 5466838
    Abstract: A process for producing an epoxide represented by the formula (2) which comprises reacting an olefin represented by the formula (1) with oxygen in the presence of an aldehyde and in the presence or absence of a proton source by using no catalyst or using an iron-containing or copper-containing catalyst.
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: November 14, 1995
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shun-Ichi Murahashi, Yoshiaki Oda