Patents Represented by Attorney, Agent or Law Firm C. J. Caroli
  • Stable substituted succinic anhydride/ether-ester emulsifier composition and methods for its use
    Patent number: 4545856
    Abstract: A stable hydrocarbyl-substituted succinic anhydride/polyethyleneoxy-containing ether-ester emulsifier composition. There is also disclosed a method for imparting water repellency to surfaces containing groups reactive to anhydrides and a method for the sizing of paper using said composition.
    Type: Grant
    Filed: February 28, 1984
    Date of Patent: October 8, 1985
    Assignee: Chevron Research Company
    Inventor: William A. Sweeney
  • Substituted succinic anhydride/emulsifier composition
    Patent number: 4545855
    Abstract: A stable composition comprising a hydrocarbyl-substituted succinic anhydride and a polyethylene glycol diester emulsifier. There is also disclosed a method for imparting water repellency to surfaces containing groups reactive to anhydrides and a method for the sizing of paper using said composition.
    Type: Grant
    Filed: March 31, 1983
    Date of Patent: October 8, 1985
    Assignee: Chevron Research Company
    Inventor: William A. Sweeney
  • Purification of olefins by boron trifluoride-alcohol treatment
    Patent number: 4527004
    Abstract: A process for purifying predominantly straight chain olefins having from 5 to 50 carbon atoms which comprises contacting the olefins with a liquid solution of boron trifluoride in an alcohol or mixture of alcohols.
    Type: Grant
    Filed: May 28, 1982
    Date of Patent: July 2, 1985
    Assignee: Chevron Research Company
    Inventor: William A. Sweeney
  • Oxidative carbonylation of alcohols to produce dialkyl oxalates
    Patent number: 4523029
    Abstract: A process for the preparation of dialkyl oxalates by the oxidative carbonylation of alcohols which comprises reacting a mixture of carbon monoxide and oxygen with an alcohol in the presence of a heterogeneous catalyst comprising palladium and thallium on carbon.
    Type: Grant
    Filed: June 15, 1982
    Date of Patent: June 11, 1985
    Assignee: Chevron Research Company
    Inventor: Steven P. Current
  • Triazole electroactive polymers
    Patent number: 4519940
    Abstract: Tractable doped electroactive polymers, comprising recurring units of a N-substituted 1,3,4-triazole ring system, and a sufficient concentration of a charge-compensating ionic dopant associated therewith.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: May 28, 1985
    Assignee: Chevron Research Company
    Inventors: Albert H. Schroeder, Peter Denisevich, Jr., Shigeto Suzuki, Victor P. Kurkov
  • Process for the preparation of 2,6-dialkylaniline from 1-nitroalkene
    Patent number: 4506098
    Abstract: A process for the preparation of 2,6-dialkylaniline which comprises the reaction of a 1-nitroalkene with a 1,3-alkadiene to form a dialkyl nitrocyclohexene adduct and subsequent reaction of the resulting adduct with hydrogen in the presence of a hydrogenation catalyst to form the corresponding dialkylcyclohexyl amine, followed by dehydrogenation with aqueous ammonia in the presence of a dehydrogenation catalyst.
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: March 19, 1985
    Assignee: Chevron Research Company
    Inventor: Shigeto Suzuki
  • Heterodiazole electroactive polymers
    Patent number: 4505843
    Abstract: Tractable doped electroactive polymers, comprising recurring units of a 1,3,4-heterodiazole, wherein the heteroatom is oxygen or sulfur, and a sufficient concentration of a charge-compensating ionic dopant associated therewith.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: March 19, 1985
    Assignee: Chevron Research Company
    Inventors: Shigeto Suzuki, Victor P. Kurkov, Albert H. Schroeder, Peter Denisevich, Jr.
  • Heteroazole electroactive polymers
    Patent number: 4505842
    Abstract: Tractable doped electroactive polymers, comprising recurring units of a 1,3-heteroazole, wherein the heteroatom is oxygen, sulfur or substituted nitrogen, and a sufficient concentration of a charge-compensating ionic dopant associated therewith.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: March 19, 1985
    Assignee: Chevron Research Company
    Inventors: Victor P. Kurkov, Albert H. Schroeder, Peter Denisevich, Jr., Shigeto Suzuki
  • Dithiene electroactive polymers
    Patent number: 4502980
    Abstract: Tractable doped electroactive polymers, comprising recurring units of a 1,4-dithiene ring system, and a sufficient concentration of a charge-compensating ionic dopant associated therewith.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: March 5, 1985
    Assignee: Chevron Research Company
    Inventors: Peter Denisevich, Jr., Shigeto Suzuki, Victor P. Kurkov, Albert H. Schroeder
  • Process for preparation of methyl methoxyacetate
    Patent number: 4482735
    Abstract: A process for the preparation of methyl methoxyacetate by the oxycarbonylation of methanol which comprises reacting methanol with carbon monoxide in the presence of a hydrogen fluoride catalyst and an oxidizing agent containing a metal salt.
    Type: Grant
    Filed: September 29, 1983
    Date of Patent: November 13, 1984
    Assignee: Chevron Research Company
    Inventor: Richard S. Threlkel
  • Co-oligomerization of olefins
    Patent number: 4451684
    Abstract: Preparation of C.sub.20 -C.sub.40 branched-chain olefins by the co-oligomerization of C.sub.12 -C.sub.18 branched-chain internal olefins with C.sub.5 'C.sub.6 olefins by a process comprising (a) contacting a propylene oligomer feedstock having from 12 to 18 carbon atoms with a C.sub.5 -C.sub.6 olefin feedstock in a reaction zone in the presence of a boron trifluoride-alkanol catalyst; (b) maintaining the temperature in the reaction zone between about 0.degree. C. and 80.degree. C.; and (c) maintaining the pressure in the reaction zone between about 0 psig and 200 psig.
    Type: Grant
    Filed: July 27, 1982
    Date of Patent: May 29, 1984
    Assignee: Chevron Research Company
    Inventor: Joseph Z. Pasky
  • Co-dimerization of olefins
    Patent number: 4451689
    Abstract: Preparation of high molecular weight, branched-chain olefins by the co-dimerization of C.sub.9 -C.sub.21 branched-chain internal olefins by a process comprising (a) contacting a propylene oligomer feedstock having from 9 to 21 carbon atoms in a reaction zone with a catalyst selected from the group consisting of hydrogen fluoride, boron trifluoride-alkanol and aluminum chloride; (b) maintaining the temperature in the reaction zone between about 0.degree. C. and 75.degree. C.; and (c) maintaining the pressure in the reaction zone between about 0 psig and 100 psig.
    Type: Grant
    Filed: July 27, 1982
    Date of Patent: May 29, 1984
    Assignee: Chevron Research Company
    Inventor: Joseph Z. Pasky
  • Oligomerization of propylene
    Patent number: 4444985
    Abstract: Preparation of propylene oligomers having from 21 to 48 carbon atoms per molecule by a process which comprises (a) contacting propylene in a reaction zone with a hydrogen fluoride catalyst; (b) maintaining the temperature in the reaction zone between about 20.degree. C. and -30.degree. C.; and (c) maintaining the pressure in the reaction zone between about 0 psig and 400 psig.
    Type: Grant
    Filed: July 27, 1982
    Date of Patent: April 24, 1984
    Assignee: Chevron Research Company
    Inventor: Joseph Z. Pasky
  • Process for the preparation of alkenyl succinic anhydride
    Patent number: 4431826
    Abstract: An improved process for the preparation of alkenyl succinic anhydride from maleic anhydride and a mixture of straight chain alpha olefins in the C.sub.13 to C.sub.22 range which comprises separating the alpha olefins into a lower boiling fraction and a higher boiling fraction, isomerizing the higher boiling fraction, recombining the two fractions and reacting them with maleic anhydride.
    Type: Grant
    Filed: August 20, 1982
    Date of Patent: February 14, 1984
    Assignee: Chevron Research Company
    Inventor: William A. Sweeney
  • Process for calcium fluoride production from industrial waste waters
    Patent number: 4414185
    Abstract: A process for the preparation of calcium fluoride from industrial waste waters which comprises treatment of the waste waters with potassium hydroxide, followed by lime precipitation, neutralization with carbon dioxide and filtration to provide the calcium fluoride product.
    Type: Grant
    Filed: August 9, 1982
    Date of Patent: November 8, 1983
    Assignee: Chevron Research Company
    Inventor: Jonas P. Harrison
  • Process for the preparation of 1-nitroalkene
    Patent number: 4384149
    Abstract: A process for the preparation of 1-nitroalkene which comprises the reaction of a 1-alkene with dinitrogen tetroxide in the presence of oxygen and an ether solvent to form an alkene-dinitrogen tetroxide adduct and subsequent reaction of the resulting adduct with sodium fluoride in the presence of an inert gas.
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: May 17, 1983
    Assignee: Chevron Research Company
    Inventor: Shigeto Suzuki
  • Process of prolonging the life of ester hydrogenation catalyst
    Patent number: 4366333
    Abstract: The life of the hydrogenation catalyst in reducing a mixture of glycolate ester to ethylene glycol can be extended by lowering the polyglycolide ester content of the mixture by transesterification, that is, heating in the presence of alcohol, after which the resulting mixture is hydrogenated.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: December 28, 1982
    Assignee: Chevron Research Company
    Inventor: John B. Wilkes
  • Process for recovering maleic anhydride by condensation
    Patent number: 4364748
    Abstract: A process for recovering maleic anhydride from gaseous compositions comprising maleic anhydride and water by condensing the composition at a temperature in the range of from about 20.degree. C. to about 50.degree. C. and a pressure of less than about 200 millimeters of mercury.
    Type: Grant
    Filed: February 14, 1979
    Date of Patent: December 21, 1982
    Assignee: Chevron Research Company
    Inventor: Kiran R. Bakshi
  • Plasticized sulfur composition
    Patent number: 4348233
    Abstract: A plasticized sulfur composition having improved flame retardancy and crazing resistance, comprising at least 50% by weight sulfur, a sulfur plasticizer, decabromodiphenyl oxide and an inorganic filler. Preferably, the composition also contains dicyclopentadiene.
    Type: Grant
    Filed: April 17, 1981
    Date of Patent: September 7, 1982
    Assignee: Chevron Research Company
    Inventor: Milutin Simic
  • Preparation of 2-cyanoaldehydes by rhodium-catalyzed hydroformylation
    Patent number: 4344896
    Abstract: Alpha,beta-unsaturated nitriles are hydroformylated to produce 2-cyanoaldehydes by means of a catalyst comprising rhodium complexed with carbon monoxide and a triorgano ligand of phosphorus, antimony or arsenic.
    Type: Grant
    Filed: March 7, 1980
    Date of Patent: August 17, 1982
    Assignee: Chevron Research Company
    Inventor: Victor P. Kurkov