Patents Represented by Attorney Charles A. Huggett

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  • Process for introducing an additive material to polymeric foams
    Patent number: 4360486
    Abstract: Improved polymeric foams are obtained by the introduction of a beneficial additive to the system by dissolving said additive into a liquid foaming agent which is a solvent therefor, combining the solution with the polymer and extruding the polymer in foamed form.
    Type: Grant
    Filed: November 10, 1981
    Date of Patent: November 23, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Daniel J. DiBiasi, Charles M. Krutchen
  • Selective production of olefins
    Patent number: 4359595
    Abstract: A lower alcohol and/or ether feed is selectively converted to a mixture of light olefins, including ethylene and propylene, by catalytic contact of the feed material with a catalyst comprising one or more zeolites characterized by a silica to alumina mole ratio of at least 12 and a constraint index in the approximate range of 1 to 12. The catalytic conversion is carried out in the presence of bulky heterocyclic organic nitrogen compounds to suppress the formation of mononuclear aromatics. The process of this invention is particularly useful in the production of C.sub.2 -C.sub.3 olefins from methanol or dimethyl ether.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: November 16, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Louis D. Rollmann
  • Stabilization of modified cellulose in brines at high temperatures
    Patent number: 4359392
    Abstract: Novel processes are provided for the stabilization of modified celluloses in brine solutions useful for well completion and workover. Copper species are added to such fluids in an amount effective substantially to decrease the rate of decomposition of such cellulose at temperatures above about 225.degree. F.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: November 16, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Ralph H. Rygg
  • Process for making epsilon-caprolactam
    Patent number: 4359421
    Abstract: Process for preparing caprolactam from cyclohexanone oxime by passing the oxime, preferably dissolved in a solvent, over a zeolite having a SiO.sub.2 /Al.sub.2 O.sub.3 of at least 12 and a Constraint Index of from 1 to 12.
    Type: Grant
    Filed: January 15, 1981
    Date of Patent: November 16, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Weldon K. Bell, Clarence D. Chang
  • Catalyst regeneration procedure
    Patent number: 4359400
    Abstract: Supported multi-metallic platinum-containing hydrocarbon conversion catalysts which are at least partially deactivated due to the deposition of carbonaceous residues thereon during contact with hydrocarbons are regenerated by (1) contacting the catalyst with oxygen to burn at least a portion of the carbonaceous residues from the catalyst, (2) contacting the carbonaceous residue depleted catalyst with hydrogen at an elevated temperature to convert a substantial portion of the non-platinum component present in the catalyst to its metallic form, (3) contacting the reduced catalyst with dry hydrogen chloride in the absence of oxygen, (4) treatment of the hydrogen chloride treated catalyst with chlorine, and (5) reduction of the chlorine treated catalyst with a reducing agent, such as hydrogen.
    Type: Grant
    Filed: January 27, 1981
    Date of Patent: November 16, 1982
    Assignee: Mobil Oil Corporation
    Inventors: George R. Landolt, William D. McHale, Hans J. Schoennagel
  • Nestable foam cup with improved heat retention and the process for its manufacture
    Patent number: 4359160
    Abstract: A thermoformed polymeric foam article, such as a cup or container, is disclosed having improved thermal insulation properties. Contact with hot water causes expansion of the foam wall, substantially decreasing foam density and providing greater heat retention.
    Type: Grant
    Filed: December 4, 1980
    Date of Patent: November 16, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Donald W. Myers, Samantha L. Vivlamore
  • Hydrogen regeneration of coke-selectivated crystalline aluminosilicate catalyst
    Patent number: 4358395
    Abstract: A method is provided for regeneration of a catalyst comprising a crystalline aluminosilicate zeolite characterized by a silica to alumina mole ratio of at least about 12, a constraint index, as hereinafter defined, within the approximate range of 1 to 12, which catalyst has undergone controlled precoking by exposing the same to a thermally decomposable organic compound at a temperature in excess of the decomposition temperature of said compound but less than about 1200.degree. F., at a hydrogen to organic compound mole ratio of between 0 and 1 to deposit at least about 1 weight percent coke thereon, such precoked catalyst having been deactivated by formation of a carbonaceous deposit thereon as a result of use of the same in catalytically converting an organic charge under conditions less severe, i.e.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: November 9, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Werner O. Haag, David H. Olson, Paul G. Rodewald
  • Chemically modified imidazole curing catalysts for epoxy resin and powder coatings containing them
    Patent number: 4358571
    Abstract: Imidazole or substituted imidazole is adducted with acrylate ester, an epoxy, or an isocyanate followed by neutralization with lower fatty acid or alkylene or aromatic dicarboxylic acid. The product is a curing agent which is combined with an epoxy resin to form a powder coating.
    Type: Grant
    Filed: March 10, 1981
    Date of Patent: November 9, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Marvin L. Kaufman, George F. Salathe
  • Demetalation and desulfurization of oil
    Patent number: 4358361
    Abstract: This invention is concerned with removing metals and sulfur from oil, preferably from residual oil, by contact with a novel catalyst. Said catalyst comprises a Group VIII metal and a Group VI metal deposited within an amorphous porous glass support of controlled pore size distribution.
    Type: Grant
    Filed: July 24, 1981
    Date of Patent: November 9, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Alan W. Peters
  • Method for enhancing catalytic activity
    Patent number: 4358363
    Abstract: A waxy fuel oil that contains a catalytically deleterious contaminant is treated with a crystalline zeolite under sorption conditions followed by catalytic dewaxing with a crystalline zeolite exemplified by ZSM-5 to produce dewaxed fuel oil and high octane gasoline.
    Type: Grant
    Filed: January 15, 1981
    Date of Patent: November 9, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Fritz A. Smith
  • Method for enhancing catalytic activity
    Patent number: 4358362
    Abstract: A hydrocarbon feed for use in a catalytic conversion process that utilizes a zeolite catalyst, and that contains a catalytically deleterious impurity, is refined by contact with a zeolitic sorbent. The invention is applicable to dewaxing, with an example illustrating reduction by 100.degree. F. of the initial equilibrium (lineout) temperature by the method of this invention. Other reactions include conversions of aromatic hydrocarbons such as alkylation, isomerization and disproportionation.
    Type: Grant
    Filed: January 15, 1981
    Date of Patent: November 9, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Fritz A. Smith, Samuel A. Tabak
  • Burning properties of fluid coke
    Patent number: 4358290
    Abstract: An improved solid fuel obtained by blending fluid coke with 2 to 20 wt. % of a heavy petroleum liquid.
    Type: Grant
    Filed: June 27, 1980
    Date of Patent: November 9, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Nai Y. Chen, Dennis E. Walsh
  • Zeolite catalysts modified with group IV A metals
    Patent number: 4358397
    Abstract: A modified zeolite catalyst composition useful for the conversion of aromatic compounds to dialkylbenzene compounds rich in the 1,4-dialkylbenzene compounds rich in the 1,4-dialkylbenzene isomer. The reaction is carried out in the presence of a zeolite catalyst having a silica to alumina mole ratio of at least 12 and a constraint index of about 1-12, said catalyst having been modified by treatment with compounds of Group IV A (Ti, Zr, Hf), and optionally phosphorus, to deposit a minor proportion of such elements on the zeolite.
    Type: Grant
    Filed: December 31, 1980
    Date of Patent: November 9, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Chin C. Chu
  • Process for repairing asphalt pavement
    Patent number: 4358554
    Abstract: This invention provides a process for repairing and surfacing broken asphalt pavements which involves applying to the distressed pavement a binder composition which has exceptional solvating power for asphaltic material, and which functions to solubilize and incorporate aged pavement asphalt into the binder composition as it penetrates and fills void spaces.Illustrative of a preferred binder composition which is applied to the distressed pavement is a homogeneous blend of (1) a FCC main column bottoms residuum boiling above about 650.degree. F., and (2) an asphalt-soluble elastomer which improves the elasticity and wear resistance of the binder composition.
    Type: Grant
    Filed: February 10, 1981
    Date of Patent: November 9, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Tsoung Y. Yan, Costandi A. Audeh
  • Seismic data gathering method
    Patent number: 4357689
    Abstract: This specification discloses a method of seismic exploration and in particular a method of generating and gathering field seismic data. Paths or seismic lines are traversed across the earth or water layers overlying the earth and over subsurface earth formations thereunder, and seismic energy is generated and transmitted into the earth and a portion thereof is reflected from the subsurface formations back toward the surface of the earth where the reflected seismic energy is detected and recorded. In conducting the seismic survey, a long linear array of seismic sources is simultaneously activated to produce a seismic pulse that is focused essentially vertically into the earth, and seismic energy is reflected from subsurface formations thereof and is detected by a long array of seismic detectors and is recorded.
    Type: Grant
    Filed: February 23, 1981
    Date of Patent: November 2, 1982
    Assignee: Mobil Oil Corporation
    Inventor: William H. Ruehle
  • Method for enhancing catalytic activity
    Patent number: 4357232
    Abstract: Catalytically dewaxed lubricating base stock oils that have improved resistance to oxidation are produced by pretreating the waxy furfural raffinate with a zeolite sorbent prior to dewaxing with a zeolite catalyst such as ZSM-5, and conducting the dewaxing at a reduced temperature not to exceed about 675.degree.-700.degree. F.
    Type: Grant
    Filed: January 15, 1981
    Date of Patent: November 2, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Robert E. Holland, Samuel A. Tabak
  • Laminar thermoplastic film constructions
    Patent number: 4357191
    Abstract: Laminar thermoplastic film constructions comprising a layer of low density polyethylene bonded to a layer of a dissimilar polymer blend comprising high density polyethylene and polyethylene copolymers. In particular such copolymers comprise polyethylene copolymerized with another alpha olefin containing from about 3 up to about 15 carbon atoms. Such copolymers are also characterized by being linear, low density polymers having densities which are below about 0.94 grams/cc.
    Type: Grant
    Filed: September 3, 1981
    Date of Patent: November 2, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Edward M. Bullard, Gregory M. Smith
  • Catalyst for the upgrading of aromatic liquids
    Patent number: 4357263
    Abstract: Desulfurization, denitrogenation, deoxygenation and CCR reduction of highly aromatic petroleum and coal derived liquids are conducted with hydrogen and with a refractory base catalyst incorporating at least one Group VIA metal and at least one Group VIII metal. The catalyst has a surface area of between about 100 and 300 m.sup.2 /g and a total pore volume of between about 0.3 and 1.
    Type: Grant
    Filed: December 16, 1980
    Date of Patent: November 2, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Roland H. Heck, Stephen M. Cleck, Stuart S. Shih, Robert C. Wilson
  • Process of underground coal gasification
    Patent number: 4356866
    Abstract: Useful product is recovered from an underground coal seam by drilling a passage extending from the surface to a cavity formed in the floor rock below the coal seam, drilling one or more upwardly radially extending channels from the cavity forming an injection manifold-like system which extends to the interface between the floor rock and the coal seam, injecting an oxidant or oxidant gas mixture into these channels from the surface, igniting the coal where the radially extending channels connect with the base of the coal seam and recovering product gases generated by the gasification process through a plurality of surrounding production wells.
    Type: Grant
    Filed: December 31, 1980
    Date of Patent: November 2, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Joseph G. Savins
  • Hanging sign
    Patent number: D266774
    Type: Grant
    Filed: July 23, 1979
    Date of Patent: November 2, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Philip R. Brown, Charles M. Baffo