Patents Represented by Attorney Frank J. Sroka
  • Patent number: 5225383
    Abstract: A process and catalyst are provided for hydrogenation of a hydrocarbon feedstock consisting essentially of material boiling between about 150.degree. F. and about 700.degree. F. which comprises reacting the feedstock with hydrogen at hydrogenation conditions in the presence of a catalyst comprising from about 0.1% to about 2.0% by weight each of palladium and platinum and a support comprising mordenite. The process of the present invention provides substantially improved dearomatization performance, increased desulfurization and denitrogenation, increased distillate product cetane number, increased distillate volume expansion, and utilizes a more durable catalyst.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: July 6, 1993
    Assignee: Amoco Corporation
    Inventors: Simon G. Kukes, Frederick T. Clark, P. Donald Hopkins, Lisa M. Green
  • Patent number: 5225486
    Abstract: Epoxy resins containing epoxidized polybutenes and a process for preparing them are disclosed. The cured epoxy resin containing epoxidized polybutene is useful as a coating or a composite and demonstrates improved flexibility and ductility and improved chemical and water resistance with no loss in heat deflection temperature.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: July 6, 1993
    Assignee: Amoco Corporation
    Inventors: Joanna K. Money, Lawrence J. Beck
  • Patent number: 5225082
    Abstract: A hydrocyclone separator for separating oil from water includes a substantially cylindrical first portion with a central overflow outlet and at least one tangential flow inlet, at least one converging section, and a tail portion with a central underflow outlet having a substantial length thereof characterized by a slight taper in the range of 1 to less than 15 degree-minutes.
    Type: Grant
    Filed: January 30, 1992
    Date of Patent: July 6, 1993
    Assignee: Amoco Corporation
    Inventors: Grant A. Young, Davis L. Taggart, David G. Hild, David W. Simms, J. Robert Worrell
  • Patent number: 5224658
    Abstract: Fluid-inclusion volatiles contained in a range of types of sedimentary rocks are released under uniform conditions by single-impact crushing by applying a force effective for releasing fluid-inclusion volatiles from unaggregated quartz-grain sands.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: July 6, 1993
    Assignee: Amoco Corporation
    Inventor: Michael P. Smith
  • Patent number: 5224623
    Abstract: An improved open-top container which is reinforced by ribs which wrap around the container side walls to supply reinforcement in both the axial and radial directions, while also providing for nesting into a similar container for improved transport and durability.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: July 6, 1993
    Assignee: Amoco Corporation
    Inventor: John A. LaFleur
  • Patent number: 5223471
    Abstract: A contact material of a fluorine-containing compound of at least one of Sr, Ba, Sc, Y or La, as well as such contact material compositions themselves, is provided.
    Type: Grant
    Filed: November 21, 1991
    Date of Patent: June 29, 1993
    Assignee: Amoco Corporation
    Inventor: Don M. Washecheck
  • Patent number: 5223161
    Abstract: A high performance lubricating grease effectively lubricates and greases front-wheel drive joints. The lubricating grease has excellent extreme pressure properties and antiwear qualities and is economical, effective, and safe. In one preferred form, the lubricating grease comprises a base oil, a polyurea thickener, an additive package comprising calcium sulfate and calcium acetate.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: June 29, 1993
    Assignee: Amoco Corporation
    Inventor: John A. Waynick
  • Patent number: 5223715
    Abstract: A process is provided for obtaining spectral information and quantifying the physical properties of a sample. The process comprises launching polychromatic light having a wavelength ranging from about 100 nanometers to about 2500 nanometers alternately through at least one sample channel and at least one reference channel, through at least one high-efficiency fiber optic switch. The sample and the polychromatic light along the sample channel are directed to a sample cell wherein the polychromatic light is passed through the sample, producing sample spectral information. The polychromatic light directed along the reference channel produces reference spectral information.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: June 29, 1993
    Assignee: Amoco Corporation
    Inventor: James L. Taylor
  • Patent number: 5223466
    Abstract: A process for making a magnesium-containing supported titanium-containing, alpha-olefin polymerization or co-polymerization catalyst or catalyst component having a large particle size, semi-spherical particle shape and high resistance to attrition.
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: June 29, 1993
    Assignee: Amoco Corporation
    Inventors: Sam S. Lee, Nicholas M. Karayannis
  • Patent number: 5221800
    Abstract: A process for the manufacture of adipic acid is disclosed. In this process, cyclohexane is oxidized in an aliphatic monobasic acid solvent in the presence of a soluble cobalt salt wherein water is continuously or intermittently added to the reaction system after the initiation of oxidation of cyclohexane as indicated by a suitable means of detection, and wherein the reaction is conducted at a temperature of about 50.degree. C. to about 150.degree. C. at an oxygen partial pressure of about 50 to about 420 pounds per square inch absolute.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: June 22, 1993
    Assignee: Amoco Corporation
    Inventors: Chang-Man Park, Nancy S. Goroff
  • Patent number: 5221656
    Abstract: A hydroprocessing catalyst and process of using such catalyst wherein such catalyst has at least one hydrogenation metal deposited on an inorganic oxide support and is further characterized by a surface area of greater than about 220 m.sup.2 /g, a pore volume of about 0.23-0.30 cc/g in pores greater than about 600 Angstroms radius, an average pore radius of about 30-70 Angstroms in pores less than 600 Angstroms, and an incremental pore volume curve with a maximum at about 25-50 Angstroms radius.
    Type: Grant
    Filed: March 25, 1992
    Date of Patent: June 22, 1993
    Assignee: Amoco Corporation
    Inventors: Frederick T. Clark, Albert L. Hensley, Jr., Simon G. Kukes, David C. Arters
  • Patent number: 5221798
    Abstract: The 4,2'-disubstituted diphenyl carbonate or, optionally, ether content of regioimpure mixtures of compounds of formula: ##STR1## where X is F, Cl, and NO.sub.2, can be decreased to essentially zero starting with o-, m- and p-containing regioimpure mixtures by treating with the corresponding m- or p-substituted phenol and, optionally, a decarboxylation catalyst and removing the o-substituted phenol produced by volatilization or recrystallization from a solvent.
    Type: Grant
    Filed: November 16, 1989
    Date of Patent: June 22, 1993
    Assignee: Amoco Corporation
    Inventor: Allen B. Mossman
  • Patent number: 5221776
    Abstract: A process is provided for isomerizing an olefinic hydrocarbon feedstock and producing an olefinic isomerate product, wherein the feedstock comprises at least 10 weight percent of an olefinic hydrocarbon having 5 carbon atoms, comprising contacting the feedstock at isomerization conditions with an isomerization catalyst, the isomerization catalyst comprising from about 0.01 weight percent to about 50 weight percent borosilicate and from about 20 weight percent to about 99.99 weight percent of silica.
    Type: Grant
    Filed: May 11, 1992
    Date of Patent: June 22, 1993
    Assignee: Amoco Corporation
    Inventor: Bruce D. Alexander
  • Patent number: 5219471
    Abstract: A process for measuring and treating oil-water stable emulsions derived from crude oil desalters is provided. Emulsion volume is measured, the emulsion is withdrawn, blended with aromatic-rich hydrocarbon, heated and three phases--water, oil and solids--are separated by exposure to a force of at least 500 g.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: June 15, 1993
    Assignee: Amoco Corporation
    Inventors: Shri K. Goyal, James F. Mosby, Jack E. Treadman, II
  • Patent number: 5219532
    Abstract: A reactor for refining resid includes an elongated vertical vessel containing a bed of catalyst which is expanded or ebullated by a liquid/gas mixture. The mixture rises in an updraft through the bed and then is recirculated with an increased velocity by an ebullating pump. To reduce gas holdup of the ebullated bed and to promote a more uniform flow, the gas is entrapped by two cascaded stages of baffles which have an internal conical shape to guide, direct, and entrap the gas. One of these two stages has a shape which creates a countercurrent in the flowing liquid to deflect any catalyst particles which might otherwise be elutriated by the increased velocity.
    Type: Grant
    Filed: January 17, 1991
    Date of Patent: June 15, 1993
    Assignee: Amoco Corporation
    Inventors: Robert D. Buttke, John R. Frey
  • Patent number: 5218610
    Abstract: An electronically tuned, optically pumped, transition metal based, solid-state laser is disclosed. Tuning is achieved by using resonant reflecting means comprising an output mirror, a mirror located between the output mirror and the source of laser light, a polarizer located in the light path between the two mirrors, and an electronically tuned, voltage controlled, variable, liquid crystal waveplate for receiving light passing through the polarizer. The components of the resonant reflecting means are selected to have a longitudinal mode that is anti-resonant with the optical cavity of the laser.
    Type: Grant
    Filed: May 8, 1992
    Date of Patent: June 8, 1993
    Assignee: Amoco Corporation
    Inventor: George J. Dixon
  • Patent number: 5218052
    Abstract: A multistage method for making a homopolymer or copolymer of an alpha-olefin having increased stiffness and broadened molecular weight distribution.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: June 8, 1993
    Assignee: Amoco Corporation
    Inventors: Steven A. Cohen, Nicholas M. Karayannis, Jerome A. Streeky, Benjamin S. Tovrog
  • Patent number: 5216092
    Abstract: This invention relates to a blend comprising a first LCP polyester polymer consisting essentially of units (I), (II), (III), and (IV). ##STR1## having a melting point under about 420.degree. C., p is approximately equal to r+q, r is from about 0.05 to about 0.9, q is from about 0.95 to about 0.1 and s is from about 0.05 to about 9, and a second LCP polyester polymer comprising at least one moiety selected from the group consisting of hydroxybenzoic acid, hydroxynaphthalene carboxylic acid, dihydroxy naphthalene, naphthalene dicarboxylic acid, oxybisbenzoic acid and substituted hydroquinones wherein the said moiety or moieties comprise(s) at least about 5 mole percent of the units in said second LCP polyester.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: June 1, 1993
    Assignee: Amoco Corporation
    Inventors: Paul J. Huspeni, Brian A. Stern, Paul D. Frayer, Richard Layton, Markus Matzner
  • Patent number: 5216091
    Abstract: This invention pertains to novel copolyesters consisting essentially of units (I), (II), (III), and (IV). ##STR1## and blends of these polymers and articles made from both. Units (I), (II), (III), and (IV) are present in specified proportions as defined in the "Description of the Invention."The instant copolyesters display orientation in the molten state, good fiber ratings and high strength. Advantageously, the polymers of the present invention display a significant improvement in viscosity and moldability of the neat polymer. The polymers have excellent mechanical and surface properties including blister resistance, strength, toughness, and ability to vapor phase solder, and form strong fibers while still maintaining a high heat distortion temperature. They have melting points in the range of from about 250.degree. to about 360.degree. C. and are melt-processible. Advantageously, these compositions filled with about 30 weight percent of glass fibers display heat distortion temperatures of up to 240.degree.
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: June 1, 1993
    Assignee: Amoco Corporation
    Inventors: Brian A. Stern, Markus Matzner, Richard Layton, Paul J. Huspeni, Paul D. Frayer, James W. Cleary
  • Patent number: 5213256
    Abstract: A container assembly comprising a container having a first section having a bottom wall, sidewalls, and end walls and a second section adapted to lie over the open top of said first section to selectively close the open top of said first section and an insert means adapted to separate the contents of said sections, said insert being removable from said container while said container is in a closed position. The container assembly of the present invention is particularly useful in maintaining the hot/cold or moist/dry components of a food product separate until just prior to consumption at which time the insert is removed and the components of the food product are combined. The insert is removable while the container is closed so that the components of the food product can be combined without necessitating handling by the consumer.
    Type: Grant
    Filed: March 18, 1987
    Date of Patent: May 25, 1993
    Assignee: Amoco Corporation
    Inventor: Stephen J. Cyr