Patents Represented by Attorney, Agent or Law Firm Frederick S. Jerome
  • Patent number: 6358620
    Abstract: This invention is chemically resistant thermosetting resins having low contents of volatile organic components comprising (i) a minor amount by weight of ethylenically unsaturated reactive solvent, (ii) a major amount by weight of an unsaturated polyester produced by a process which comprises; (a) condensing dihydric alcohol with at least one dicarboxylic acid and/or anhydride of dicarboxylic acid to form a condensation polymer having an acid number (AN) in a range upward from about 5 mg KOH/g polymer, and (b) reacting the condensation polymer with an amount of glycidyl methacrylate such that the weight ratio of glycidyl methacrylate to condensation polymer is in a range of from about 0.001 AN to about 0.005 AN.
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: March 19, 2002
    Assignee: BP Corporation North America Inc.
    Inventors: Howard B. Yokelson, James Van Fleet, Karen E. Medema
  • Patent number: 6160174
    Abstract: A particularly useful process which includes the steps of providing a source of formaldehyde formed by conversion of methanol in the presence of a catalyst comprising silver as an essential catalyst component; and contacting the source of formaldehyde and a predominately dimethyl ether feedstream with a heterogeneous, condensation promoting catalyst capable of hydrating dimethyl ether under conditions of reaction sufficient to form an effluent comprising water, methanol, formaldehyde, dimethyl ether, and polyoxymethylene dimethyl ethers is disclosed. Unreacted dimethyl ether is recovered from the effluent and recycled to the formation of polyoxymethylene dimethyl ethers. The resulting dimethyl ether-free liquid mixture is heated in the presence of an acidic catalyst to convert at least the methanol and formaldehyde present to polyoxymethylene dimethyl ethers. Advantageously, methylal and higher polyoxymethylene dimethyl ethers are formed and separated in a catalytic distillation column.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: December 12, 2000
    Assignee: BP Amoco Corporation
    Inventors: Gary P. Hagen, Michael J. Spangler
  • Patent number: 6160186
    Abstract: A particularly useful process which includes the steps of providing a source of formaldehyde formed by conversion of dimethyl ether in the presence of a catalyst comprising copper and zinc; and contacting the source of formaldehyde and a predominately dimethyl ether feedstream with a heterogeneous, condensation promoting catalyst capable of hydrating dimethyl ether under conditions of reaction sufficient to form an effluent comprising water, methanol, formaldehyde, dimethyl ether, and polyoxymethylene dimethyl ethers is disclosed. Unreacted dimethyl ether is recovered from the effluent and recycled to the formation of polyoxymethylene dimethyl ethers. The resulting dimethyl ether-free liquid mixture is heated in the presence of an acidic catalyst to convert at least the methanol and formaldehyde present to polyoxymethylene dimethyl ethers. Advantageously, methylal and higher polyoxymethylene dimethyl ethers are formed and separated in a catalytic distillation column.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: December 12, 2000
    Assignee: BP Amoco Corporation
    Inventors: Gary P. Hagen, Michael J. Spangler
  • Patent number: 6069212
    Abstract: Method and apparatus are described for continuous vapor phase polymerization of a polymerizable monomer or mixture thereof to produce normally solid polymer substances in two or more serially disposed vapor phase polymerization reactors, each containing a quench-cooled subfluidized particulate bed of polymerized monomer. More specifically, method and apparatus for transfer of polymer particles between high pressure, reactive gas-filled, continuous, vapor-phase polymerization reactors while maintaining each at independently selected operating conditions.
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: May 30, 2000
    Assignee: BP Amoco Corporation
    Inventors: Scott Ching-Sheng Hung, Kwok-Fu Lee, Joseph Michael Aubuchon, Daryl Henry Webster, James Hanawalt Lee
  • Patent number: 6039792
    Abstract: The present invention relates to an improved method and apparatus for separating one or more condensable compounds from a mixture of two or more gases of differing volatilities by capillary fractionation in a membrane-type apparatus, and a method of forming porous structures therefor. More particularly, the invention includes methods of forming and using an apparatus consisting, at least in part, of a porous structure having capillary-type passages extending between a plurality of small openings on the first side and larger openings on a second side of the structure, the passages being adapted to permit a condensed liquid to flow therethrough substantially by capillary forces, whereby vapors from the mixture are condensed, at least in part, and substantially in and adjacent to the openings on the first side, and are caused to flow in a condensed liquid state, substantially in the absence of vapor, from the openings on the first side to the openings on the second side.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: March 21, 2000
    Assignee: Regents of the University of California and BP Amoco Corporation
    Inventors: Narasimhan Calamur, Martin E. Carrera, David J. Devlin, Tom Archuleta
  • Patent number: 5906664
    Abstract: The invention relates to high energy, oxygenated fuel compositions suitable for use in compression ignition internal combustion engines which fuel compositions contain a synergistic combination of dimethyl ether, methanol, and water, the combination providing a single liquid phase with good ignition characteristics. More particularly fuels comprising from about 72 to about 95 weight percent of dimethyl ether, from about 0.1 to about 20 weight percent of methanol, and from about 0.1 to about 20 weight percent of water are disclosed.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: May 25, 1999
    Assignee: Amoco Corporation
    Inventors: Arunabha Basu, Theodore H. Fleisch, Christopher I. McCarthy, Svend-Erik Mikkelsen, Carl A. Udovich
  • Patent number: 5756833
    Abstract: Processes using a titanium dioxide-supported purification catalyst are disclosed for purification of relatively impure dicarboxylic aromatic acid produced by liquid-phase oxidation of a suitable benzene or naphthalene having two oxidizable ring substituents, and/or by recovery from polyester resin comprising repeating units of the dicarboxylic aromatic acid residue and repeating units of dihydric alcohol residue. Purification comprises passing an aqueous solution of dicarboxylic aromatic acid with small amounts of organic impurities consisting of oxygen-containing aromatic co-products of oxidation and/or other organic components, through a particulate bed of purification catalyst comprising a noble metal on a titanium dioxide support under conditions suitable for decarbonylation of organic impurities. Generally, at least one weight percent of the titanium dioxide support is in the rutile crystalline phase.
    Type: Grant
    Filed: January 2, 1997
    Date of Patent: May 26, 1998
    Assignee: Amoco Corporation
    Inventors: Bruce I. Rosen, Thomas M. Bartos
  • Patent number: 5750759
    Abstract: A process of contacting a feedstream containing dioxygen, carbon monoxide, ether, and alkanol, which can be vaporized under conditions of reaction, with a blend of catalysts which are heterogeneous to the feedstream, under conditions of reaction sufficient to form a mixture containing at least one higher molecular weight oxygenated organic compound is described. In another aspect, this invention relates to a blend of catalysts consisting of at least one molecular sieve, natural or synthetic, which has been found useful for hydrocarbon conversion reactions and a catalyst comprising a metal halide or a mixed metal halide supported on active carbon, which is effective in catalyzing direct formation of organic carbonates.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: May 12, 1998
    Assignee: Amoco Corporation
    Inventors: Gary P. Hagen, Michael J. Spangler
  • Patent number: 5672796
    Abstract: A catalyst and process is described for aromatizing one or more C.sub.3 to C.sub.6 saturated hydrocarbon to a product low in methane and essentially containing ethane or ethane and propane and aromatic hydrocarbons. A partially sulfided, Pt/Re loaded, essentially hydrogen-form, crystalline aluminosilicate molecular sieve exhibiting the MFI structure and having a Si/Al ratio between about 40 and about 600 is shown to have an excellent catalyst lifetime and favor low methane production, high conversion and high selectivity to benzene, toluene and xylenes and ethane or ethane and propane.
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: September 30, 1997
    Assignee: Amoco Corporation
    Inventors: Gilbert Fernand Alphonse Froment, Wilfried Jozef Hippolyte Dehertog
  • Patent number: 5653673
    Abstract: Centrifugal apparatus for the continuous separation of solids-liquid mixtures and the internal washing of separated solids is provided with one or more conduits to deliver washing liquid into centrifugally sedimented solids tumbling and suspending these solids in washing liquid. A distal end of each wash conduit is positioned in close proximity to the inner surface of the centrifuge bowl near the conveyor blade which is adapted to contact the solids upon separation and propel separated solids toward the solids discharge port. The invention includes centrifugal apparatus provided with plurality of cutting tools such as knife blades adapted to cut and separate the sedimented solids. In another aspect of the invention centrifugal apparatus is provided with one or more dip weirs dividing the centrifugally separated liquid pool in the bowl into axially adjacent zones with suitable a passageway for transfer of liquids and solids between adjacent zones.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 5, 1997
    Assignee: Amoco Corporation
    Inventors: Vikram J. Desai, John W. Caldwell, Alan G. Letki
  • Patent number: 5639437
    Abstract: Preparation, structure, and properties of mixed metal oxide compositions containing at least strontium, cobalt, iron and oxygen are described. The crystalline mixed metal oxide compositions of this invention have, for example, structure represented bySr.sub..alpha. (Fe.sub.1-x Co.sub.x).sub..alpha.+.beta. O.sub..delta.where x is a number in a range from 0.01 to about 1, .alpha. is a number in a range from about 1 to about 4, .beta. is a number in a range upward from 0 to about 20, and .delta. is a number which renders the compound charge neutral, and wherein the composition has a non-perovskite structure. Use of the mixed metal oxides in dense ceramic membranes which exhibit oxygen ionic conductivity and selective oxygen separation, are described as well as their use in separation of oxygen from an oxygen-containing gaseous mixture.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: June 17, 1997
    Assignee: Amoco Corporation
    Inventors: Uthamalingam Balachandran, Mark S. Kleefisch, Thaddeus P. Kobylinski, Sherry L. Morissette, Shiyou Pei
  • Patent number: 5626794
    Abstract: A process for hydroshifting dimethyl ether is described which comprises passing a feed stream which includes dimethyl ether and steam to a hydroshifting reaction zone including an essentially alkali metal-free catalytic composition substantially composed of copper or nickel in elemental form. The process produces a hydroshifted product stream which is relatively rich in hydrogen, carbon monoxide, and carbon dioxide.The feed stream can be transported relatively easily in liquid form at comparatively low pressures. The hydroshifting reaction zone can include a hydrolysis reaction zone and a water-gas shift reaction zone. The hydrolyzed product and the water-gas shift product can be recovered to obtain hydrogen and carbon dioxide, respectively. Additionally, the hydroshifted product stream can be blended with an oxidizing stream and combusted to drive a turbine in order to generate mechanical energy.
    Type: Grant
    Filed: February 6, 1996
    Date of Patent: May 6, 1997
    Assignee: Amoco Corporation
    Inventors: Alakananda Bhattacharyya, Arunabha Basu
  • Patent number: 5616792
    Abstract: Processes using a titanium dioxide-supported purification catalyst are disclosed for purification of relatively impure dicarboxylic aromatic acid produced by liquid-phase oxidation of a suitable benzene or naphthalene having two oxidizable ring substituents, and/or by recovery from polyester resin comprising repeating units of the dicarboxylic aromatic acid residue and repeating units of dihydric alcohol residue. Purification comprises passing an aqueous solution of dicarboxylic aromatic acid with small amounts of organic impurities consisting of oxygen-containing aromatic co-products of oxidation and/or other organic components, through a particulate bed of purification catalyst comprising a noble metal on a titanium dioxide support under conditions suitable for decarbonylation of organic impurities. Generally, at least one weight percent of the titanium dioxide support is in the ruffle crystalline phase.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: April 1, 1997
    Assignee: Amoco Corporation
    Inventors: Thomas M. Bartos, Bruce I. Rosen
  • Patent number: 5614163
    Abstract: A process is disclosed for preparing a synthesis gas comprising hydrogen and carbon monoxide by partial oxidation of hydrocarbyl compounds using a source of oxygen comprising molecular oxygen, carbon dioxide, or mixtures thereof in the presence of a catalyst comprising thermally stable mixtures formed by heat treating a hydrotalcite-like compound.
    Type: Grant
    Filed: July 26, 1995
    Date of Patent: March 25, 1997
    Assignee: Amoco Corporation
    Inventors: Alakananda Bhattacharyya, Mark S. Kleefisch, Carl A. Udovich
  • Patent number: 5599510
    Abstract: Dual-flow chemical reactor cores containing catalytic heat-transfer walls comprising both a gas-impervious material and a suitable catalyst which allows oxidative coupling of methane into higher hydrocarbons, dual-flow reactors having these catalytic heat-transfer walls to control and facilitate simultaneously coupling of methane and cracking of hydrocarbon compounds in separate gas streams, and chemical processes which combine coupling of methane and cracking of hydrocarbon compounds to make olefins in a dual-flow reactor having catalytic heat-transfer walls.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: February 4, 1997
    Assignee: Amoco Corporation
    Inventors: Mark P. Kaminsky, George A. Huff, Jr., Narasimhan Calamur, Michael J. Spangler
  • Patent number: 5501804
    Abstract: In a mechanical cell for blending elastomer particles and solution into uniform mixtures, a solid core with an entrance surface, an exit surface spaced apart from and substantially parallel to the entrance surface, and a plurality of minute core passageways therebetween for flow of an elastomer-containing hydrocarbon solution from the entrance surface to the exit surface, the passageways have a characteristic dimension of predetermined size to reduce globules of elastomer to small particles distributed evenly in liquid hydrocarbon solution without plugging the passageways. Typically the passageways have a characteristic dimension of predetermined size to reduce globules of elastomer selected from the group consisting of natural rubber, styrene-butadiene rubber, polybutadiene rubber, polyisoprene, a nitrile rubber, and a copolymer of a 1,4-conjugated diene and a vinyl aromatic monomer, to small particles distributed evenly in liquid hydrocarbon solution comprising a vinyl aromatic monomer.
    Type: Grant
    Filed: July 14, 1994
    Date of Patent: March 26, 1996
    Assignee: Amoco Corporation
    Inventors: Richard A. Hall, Michael G. O'Connell, Evelyn A. Taylor
  • Patent number: 5157182
    Abstract: A dehydrocyclization process is described for producing polynuclear organic compounds by contacting a starting organic material having at least one ring moiety comprising at least two adjacent ring carbon atoms each bonded to an independently selected monovalent radical comprising at most about eight carbon atoms provided at least one of the monovalent hydrocarbon radicals comprises more than one carbon atom with a crystalline copper aluminum borate catalyst. The preferred catalyst comprises at least one member selected from the group consisting of (a) crystalline copper aluminum borate and (b) zero valent copper on a support comprising at least one member selected from the group consisting of Al.sub.4 B.sub.2 O.sub.9 and the crystalline copper aluminum borate, the zero valent copper on the support being formed by the reduction of the crystalline copper aluminum borate.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: October 20, 1992
    Assignee: Amoco Corporation
    Inventors: Patrick E. McMahon, Larry C. Satek
  • Patent number: 5137988
    Abstract: Described herein are novel amino-terminated poly(aryl ether ketone) oligomers and methods for their production. These amino-terminated poly(aryl ether ketone) oligomers are used as building blocks for a variety of polymers and copolymers.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: August 11, 1992
    Assignee: Amoco Corporation
    Inventors: Markus Matzner, Donald M. Papuga
  • Patent number: 5110880
    Abstract: Described herein is a molding composition comprising a blend of a select poly(aryl ketone) and a polyetherimide. These blends have an improved ultimate use temperature and stress crack resistance.
    Type: Grant
    Filed: January 30, 1987
    Date of Patent: May 5, 1992
    Assignee: Amoco Corporation
    Inventors: James E. Harris, Lloyd M. Robeson, John P. Gavula
  • Patent number: 5108658
    Abstract: The invention relates to a light metal oxide-based amorphous electrical conductor which comprises an amorphous ternary composition consisting of alumina, boria, and an oxide of a light metal selected from Group IA and IIA of the Periodic Table of Elements. Amorphous conductors of the present invention can be produced by forming an aqueous composition comprising a source of light metal ions, a source of alumina and a source of boria to form a homogeneous gel, drying the gel to form a superifically dry solid, and calcining the dry solid at a sufficiently high temperature to form an amorphous ternary composition as described above. The conductor is used as an element of a moisture and/or a high temperature sensor.
    Type: Grant
    Filed: January 24, 1991
    Date of Patent: April 28, 1992
    Assignee: Amoco Corporation
    Inventors: Larry C. Satek, Mark P. Kaminsky, Richard E. DeSimone