Patents Assigned to Atlantic Richfield
  • Water-soluble antimony compounds and their preparation
    Patent number: 4595771
    Abstract: Novel organic water-soluble antimony compounds are prepared by reacting ammonia or an alkylamine with a hydroxycarboxylic acid to form an intermediate product and then reacting the intermediate product with an antimony oxide. These compounds are useful for use as catalyst metal poison passivators.
    Type: Grant
    Filed: November 16, 1984
    Date of Patent: June 17, 1986
    Assignee: Atlantic Richfield Company
    Inventors: Marilyn W. Blaschke, Richard F. Miller, John Link
  • Alkoxylated plasticizer alcohol ether sulfate surfactants
    Patent number: 4594185
    Abstract: Alkoxylated ether sulfate anionic surfactants of this invention are prepared by conventional procedures, e.g., oxyalkylation with propylene oxide or 1,2-butylene oxide of a straight chain plasticizer range alcohol; optionally followed by oxyalkylation with ethylene oxide or with a mixture of ethylene oxide and higher alkylene oxide; sulfation of the alkoxylated product; and neutralization of the sulfated derivative. The alkoxylated ether sulfate anionic surfactants of the present invention are liquids which exhibit superior detergency to polyester fabrics, excellent hard water stability, organic solubility, low foaming, low odor, and exhibit excellent compatibility with non-ionic and other surfactants in detergent formulations.
    Type: Grant
    Filed: June 25, 1984
    Date of Patent: June 10, 1986
    Assignee: Atlantic Richfield Company
    Inventors: Haven S. Kesling, Jr., Hyman D. Gillman
  • Methane conversion
    Patent number: 4593139
    Abstract: A method for synthesizing hydrocarbons from a methane source which comprises contacting methane with an oxide of Ru. The oxide is reduced by the contact which is carried at about 500.degree. to 1000.degree. C. Reducible oxides of Ru are regenerated by oxidizing the reduced composition with oxygen.
    Type: Grant
    Filed: October 31, 1984
    Date of Patent: June 3, 1986
    Assignee: Atlantic Richfield Company
    Inventor: Howard P. Withers
  • Alkoxylated ether sulfate anionic surfactants from plasticizer alcohol mixtures
    Patent number: 4592875
    Abstract: Mixtures of alkoxylated ether sulfate anionic surfactants of this invention are prepared by conventional procedures, e.g., oxyalkylation with propylene oxide or 1,2-butylene oxide of a plasticizer range linear or branched "oxo" alcohol; optionally followed by oxyalkylation with ethylene oxide or with a mixture of ethylene oxide and higher alkylene oxide; sulfation of the alkoxylated product; and neutralization of the sulfated derivative. The alkoxylated ether sulfate anionic surfactant compositions of the present invention are liquids which exhibit superior detergency to polyester fabrics, excellent hard water stability, low foaming, low odor, and exhibit excellent compatibility with non-ionic and other surfactants in detergent formulations.
    Type: Grant
    Filed: June 25, 1984
    Date of Patent: June 3, 1986
    Assignee: Atlantic Richfield Company
    Inventors: Haven S. Kesling, Jr., Hyman D. Gillman
  • Stabilized polyhydroxybutadiene compounds
    Patent number: 4593128
    Abstract: Polyhydroxybutadiene compounds are storage stabilized against reactivity changes by incorporating therein an effective amount of a di or triphenyl phosphine compound of the formula ##STR1## wherein each x is hydrogen, a halogen or an alkyl or alkoxy group having from 1 to 10 carbon atoms and y is an alkyl group having from 1 to 10 carbon atoms or an aryl group which may be substituted with a halogen or an alkyl or alkoxy group having from 1 to 10 carbon atoms.
    Type: Grant
    Filed: September 7, 1984
    Date of Patent: June 3, 1986
    Assignee: Atlantic Richfield Company
    Inventors: Harry R. Hinney, John R. Murphy
  • Impact resistant polyamide molding compositions
    Patent number: 4593066
    Abstract: The impact resistance of molded polyamide resin molding compositions is improved by incorporating thereinto an elastomer grafted with a polymer comprised of recurring units of, in weight percent, (A) from about 60 to about 95 vinyl aromatic monomer, (B) from about 5 to about 40 of at least one acid selected from the group consisting of acrylic acid, methacrylic acid, partially neutralized acrylic acid, partially neutralized methacrylic acid, totally neutralized acrylic acid and totally neutralized methacrylic acid and (C) 0 to about 15 acrylate monomer.
    Type: Grant
    Filed: August 6, 1984
    Date of Patent: June 3, 1986
    Assignee: Atlantic Richfield Company
    Inventor: Barry D. Dean
  • Production of hydrocarbon-soluble salts of molybdenum for epoxidation of olefins
    Patent number: 4593012
    Abstract: Production of novel hydrocarbon-soluble salts, especially adapted for use as catalysts in the epoxidation of olefinic compounds with an organic hydroperoxide, by reaction of an ammonium molybdate with a carboxylic acid in the presence of an organic amine at specified elevated temperatures while removing water.
    Type: Grant
    Filed: March 5, 1985
    Date of Patent: June 3, 1986
    Assignee: Atlantic Richfield Company
    Inventors: Masahiro Usui, Yasuhiko Higashio
  • Elastomer having random peroxide functionality and method
    Patent number: 4593074
    Abstract: A process for generating random dialkyl or alkyl aryl peroxide functionality on elastomers is disclosed. Generally, the process involves dissolving an elastomer in a solvent followed by treating the resulting solution with an oxidizing agent in the presence of a catalyst. In a preferred embodiment, the oxidizing agent is a an alkyl or aryl hydroperoxide and the catalyst is a Group VIIa, VIII, Ib or IIb metal.
    Type: Grant
    Filed: March 14, 1984
    Date of Patent: June 3, 1986
    Assignee: Atlantic Richfield Company
    Inventor: Barry D. Dean
  • Ultrasonic scribing of thin film solar cells
    Patent number: 4589194
    Abstract: A process for separating a back contact metallization on a thin film solar cell array into individual cell back electrodes by using a small diameter ultrasonically driven scribe tip with sufficient tip force to remove substantially all of the underlying semiconductor layer.
    Type: Grant
    Filed: December 29, 1983
    Date of Patent: May 20, 1986
    Assignee: Atlantic Richfield Company
    Inventor: Jeffery J. Roy
  • Cold fluid enhancement of hydraulic fracture well linkage
    Patent number: 4589491
    Abstract: A method for forming a communication link between two boreholes including first cooling of a zone between the boreholes by pumping a cooling fluid down one borehole and producing it from the other and, after sufficient formation cooling has occurred, raising of the injection pressure at one borehole to initiate a fracture which tends to follow the cooled zone to the second borehole.
    Type: Grant
    Filed: June 27, 1985
    Date of Patent: May 20, 1986
    Assignee: Atlantic Richfield Company
    Inventor: Thomas P. Perkins
  • Preparation of soluble molybdenum catalysts for epoxidation of olefins
    Patent number: 4590172
    Abstract: Production of molybdenum-containing stable catalyst solutions especially adapted for use in the epoxidation of olefinic compounds with an organic hydroperoxide by reaction of molybdenum metal with a peroxy compound and an organic dicarboxylic acid in the presence of monohydroxy alcohol is provided.
    Type: Grant
    Filed: October 26, 1984
    Date of Patent: May 20, 1986
    Assignee: Atlantic Richfield Company
    Inventor: Bruce H. Isaacs
  • Method for producing primary alcohols by catalytic hydrogenation of terminal epoxides
    Patent number: 4590313
    Abstract: A process for producing primary alcohols from terminal epoxides having a mono-substituted epoxy ring and having from 3 to 6 carbon atoms per molecule which process comprises contacting the epoxide and hydrogen gas with Raney cobalt catalyst under vapor phase conditions in a hydrogenation zone.
    Type: Grant
    Filed: June 2, 1982
    Date of Patent: May 20, 1986
    Assignee: Atlantic Richfield Company
    Inventors: Roger A. Grey, John F. White, Eva M. Beals
  • Thermodynamically miscible polymer compositions
    Patent number: 4588774
    Abstract: A thermodynamically miscible polymer composition comprised of a terpolymer having recurring units of methylmethacrylate, N-aryl substituted maleimide, and vinyl aromatic monomer and an acrylonitrile copolymer is disclosed.
    Type: Grant
    Filed: March 6, 1985
    Date of Patent: May 13, 1986
    Assignee: Atlantic Richfield Company
    Inventor: Barry D. Dean
  • Anti-lumping styrene polymer particles for molding foams
    Patent number: 4588751
    Abstract: Expandable styrene polymer particles which have anti-stratification and anti-lumping properties during expansion are produced by dry blending styrene polymer particles in the presence of 0.01-0.04 parts of alkyl and alkylaryl ethers of polyethoxyethanol mono- and diesters of phosphoric acid per 100 parts of polymer particles. The esters may be added as sole anti-stratification or anti-lumping agent or in addition to known anti-lumping agents.
    Type: Grant
    Filed: October 25, 1985
    Date of Patent: May 13, 1986
    Assignee: Atlantic Richfield Company
    Inventor: Alvin R. Ingram
  • Purification of polymer solutions
    Patent number: 4587330
    Abstract: Cloudy material in organic diluent solutions of polymers prepared by anionic polymerization with a lithium initiator is removed by treating the polymer solutions resulting from the polymerization with boric acid, separating the solid material from the solutions, and isolating the polymer.
    Type: Grant
    Filed: February 22, 1985
    Date of Patent: May 6, 1986
    Assignee: Atlantic Richfield Company
    Inventors: David R. Warfel, Harold L. Nicholson
  • Thin film solar cell with free tin on tin oxide transparent conductor
    Patent number: 4584427
    Abstract: A thin film solar cell structure having a free metal layer between a transparent conductor front face contact and the front face surface of the actual thin film photovoltaic device. The free metal, preferably tin, may be formed by glow discharge reduction of the transparent conductor surface or by direct deposition of free metal.
    Type: Grant
    Filed: October 22, 1984
    Date of Patent: April 22, 1986
    Assignee: Atlantic Richfield Company
    Inventors: Kevin K. Mackamul, Don L. Morel, David P. Tanner
  • Purification of tertiary butyl hydroperoxide containing primary and secondary alkyl hydroperoxide contaminants
    Patent number: 4584413
    Abstract: This invention relates to the purification of tertiary butyl hydroperoxide containing minor amounts of primary and secondary alkyl hydroperoxide contaminants obtained by the oxidation of isobutane by contacting the tertiary butyl hydroperoxide with at least about 2 milliequivalents per gram of total hydroperoxide present of a hydroxide or an oxide of an alkali metal or alkaline earth metal in aqueous solution and recovering the desired tertiary butyl hydroperoxide containing substantially reduced concentrations of primary and secondary alkyl hydroperoxide contaminants.
    Type: Grant
    Filed: September 14, 1983
    Date of Patent: April 22, 1986
    Assignee: Atlantic Richfield Company
    Inventors: William B. Thornton, Alfred E. Borchert
  • Metal electrolysis using a semiconductive metal oxide composite anode
    Patent number: 4582584
    Abstract: A cell for the electrolytic deposition of metal at low temperatures and low electrical consumption in which the electrolytic molten bath comprises halide salt having low solubility for the metal oxide at normal operating conditions. The novel anode of this invention comprises an effective amount of a selected N-type or P-type metal.
    Type: Grant
    Filed: March 7, 1985
    Date of Patent: April 15, 1986
    Assignee: Atlantic Richfield Company
    Inventor: Jack Y. Josefowicz
  • Process of forming a compound semiconductive material
    Patent number: 4581108
    Abstract: A process of forming a compound semiconductive material having a plurality of constituent elements comprising electrodepositing a plurality of such constituent elements and subsequently heating the deposits to produce the desired semiconductive material.
    Type: Grant
    Filed: January 6, 1984
    Date of Patent: April 8, 1986
    Assignee: Atlantic Richfield Company
    Inventors: Vijay K. Kapur, Uppala V. Choudary, Alan K. P. Chu
  • Vertically integrated solid state color imager
    Patent number: 4581625
    Abstract: A solid state color imaging device comprising a two dimensional array of stacked thin film photovoltaic devices with devices in each stack responsive to selected color bands. Color discrimination may be enhanced by design of intermediate transparent conductive layers to act as optical filters.
    Type: Grant
    Filed: December 19, 1983
    Date of Patent: April 8, 1986
    Assignee: Atlantic Richfield Company
    Inventors: Charles F. Gay, Robert D. Wieting