Patents Represented by Attorney, Agent or Law Firm C. J. Caroli
  • Alkylaniline/formaldehyde co-oligomers as corrosion inhibitors
    Patent number: 4778654
    Abstract: A hydrocarbon-soluble corrosion inhibitor composition comprising the reaction product obtained by the acid-catalyzed oligomerization of alkylaniline, formaldehyde, and an aromatic compound selected from aniline, phenol, alkylphenol and an ethoxylated alkylphenol. Also disclosed is a method of inhibiting corrosion of a corrodible metal utilizing said composition.
    Type: Grant
    Filed: October 31, 1986
    Date of Patent: October 18, 1988
    Assignee: Chevron Research Company
    Inventors: Robert Bacskai, Albert H. Schroeder
  • Method for oxidatively degrading an olefinic polymer
    Patent number: 4743391
    Abstract: A method for oxidatively degrading an olefinic polymer in the absence of molecular oxygen and utilizing an oxidant mixture of a peroxide and hydroperoxide is disclosed. Lubricating oils containing the products of the oxidation process as well as the products post-reacted with funtional group-containing compounds show improved viscosity index and dispersancy properties.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: May 10, 1988
    Assignee: Chevron Research Company
    Inventors: Chester D. Gordon, Gian L. Fagan
  • Nonionic emulsifier and substituted succinic anhydride compositions therewith
    Patent number: 4695401
    Abstract: An emulsifier comprising the reaction product of a substituted succinic anhydride and a nonionic water-soluble compound having 1 to 3 reactive polar groups. There is also disclosed a stable substituted succinic anhydride/nonionic emulsifier composition, 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: December 27, 1985
    Date of Patent: September 22, 1987
    Assignee: Chevron Research Company
    Inventor: W. Alan Sweeney
  • Mixed metal alkyl catalyst for olefin polymerization
    Patent number: 4675303
    Abstract: A catalyst composition for use in polymerizing alpha olefins which comprises (a) a solid supported titanium tetrahalide complex, wherein said complex is prepared by contacting a mechanically pulverized solid support with titanium tetrahalide in the absence of mechanical pulverization, and (b) a cocatalyst comprising a mixture of a dialkyl aluminum halide and a dialkyl magnesium compound.
    Type: Grant
    Filed: January 24, 1986
    Date of Patent: June 23, 1987
    Assignee: Chevron Research Company
    Inventor: Robert Bacskai
  • Alkyl substituted phenolphthalein polyarylate polymer and alloy
    Patent number: 4652608
    Abstract: Polyarylate polymers derived from (A) substituted phenolphthalein compounds or mixtures of these compounds with other bisphenols, and (B) a mixture of isophthalic and terephthalic acid. Also disclosed are polyarylate alloy compositions comprising a phenolphthalein polyarylate and a polymer resin selected from polybisphenol A carbonate and polystyrene.
    Type: Grant
    Filed: December 28, 1984
    Date of Patent: March 24, 1987
    Assignee: Chevron Research Company
    Inventor: Phillip H. Parker
  • Carboxylic acid ester homologation using a sulfided nickel catalyst
    Patent number: 4628114
    Abstract: A process for the conversion of carboxylic acid esters to homologous carboxylic acid esters which comprises reacting a carboxylic acid ester having from two to about twenty carbon atoms with hydrogen and carbon monoxide in the presence of a heterogeneous sulfided catalyst comprising nickel, optionally in admixture with a co-catalyst selected from the elements of Group VI-B of the Periodic Table.
    Type: Grant
    Filed: June 23, 1983
    Date of Patent: December 9, 1986
    Assignee: Chevron Research Company
    Inventor: Steven P. Current
  • Alcohol carbonylation process using a bimetallic cobalt catalyst
    Patent number: 4628113
    Abstract: A process for the preparation of carboxylic acids, alcohols, aldehydes or the secondary products thereof which comprises reacting an alcohol having from one to about twenty carbon atoms with hydrogen and carbon monoxide in the presence of a heterogeneous sulfided catalyst comprising cobalt in admixture with a co-catalyst selected from the elements of Groups V-B, VI-B and the Actinide series of the Periodic Table.
    Type: Grant
    Filed: June 30, 1982
    Date of Patent: December 9, 1986
    Assignee: Chevron Research Company
    Inventor: Steven P. Current
  • Ether homologation to esters and alcohols using a heterogeneous sulfided catalyst
    Patent number: 4625050
    Abstract: A process for the conversion of dialkyl ethers to homologous carboxylic acid esters and alcohols which comprises reacting a dialkyl ether having from two to about twenty carbon atoms with hydrogen and carbon monoxide in the presence of a heterogeneous sulfided catalyst comprising nickel, optionally in admixture with a co-catalyst selected from the elements of Group VI-B of the Periodic Table.
    Type: Grant
    Filed: June 23, 1983
    Date of Patent: November 25, 1986
    Assignee: Chevron Research Company
    Inventor: Steven P. Current
  • Alcohol carbonylation process using a bimetallic nickel catalyst
    Patent number: 4625049
    Abstract: A process for the preparation of carboxylic acids, alcohols, aldehydes or the secondary products thereof which comprises reacting an alcohol having from one to about twenty carbon atoms with hydrogen and carbon monoxide in the presence of a heterogeneous sulfided catalyst comprising nickel in admixture with a co-catalyst selected from the elements of Groups V-B, VI-B and the Actinide series of the Periodic Table.
    Type: Grant
    Filed: June 30, 1982
    Date of Patent: November 25, 1986
    Assignee: Chevron Research Company
    Inventor: Steven P. Current
  • Carboxylic acid ester homologation using a sulfided cobalt catalyst
    Patent number: 4625051
    Abstract: A process for the conversion of carboxylic acid esters to homologous carboxylic acid esters which comprises reacting a carboxylic acid ester having from two to about twenty carbon atoms with hydrogen and carbon monoxide in the presence of a heterogeneous sulfided catalyst comprising cobalt, optionally in admixture with a co-catalyst selected from the elements of Group VI-B of the Periodic Table.
    Type: Grant
    Filed: June 23, 1983
    Date of Patent: November 25, 1986
    Assignee: Chevron Research Company
    Inventor: Steven P. Current
  • Bicarbazole-oxadiazole electroactive polymers
    Patent number: 4620943
    Abstract: Tractable doped electroactive polymers, comprising recurring units of a 3,3'-N,N'-disubstituted-6,6'-bicarbazole-1,3,4-oxadiazole-2,5-diyl ring system, and a sufficient concentration of a charge-compensating ionic dopant associated therewith.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: November 4, 1986
    Assignee: Chevron Research Company
    Inventors: Peter Denisevich, Jr., Albert H. Schroeder, Victor P. Kurkov, Shigeto Suzuki
  • Dialkyl oxalates from carbon monoxide and an alcohol
    Patent number: 4614832
    Abstract: Preparation of dialkyl oxalates by the oxidative carbonylation of alcohols which comprises reacting carbon monoxide with an alcohol in the presence of a catalytic amount of a catalyst comprising palladium in complex combination with a ligand and in the presence of a stoichiometric amount of a quinone. Advantageously, carboxylic acid cocatalysts may be employed in addition to the palladium-containing catalyst.
    Type: Grant
    Filed: December 17, 1979
    Date of Patent: September 30, 1986
    Assignee: Chevron Research Company
    Inventor: Steven P. Current
  • Bis(hydroxyphenyl)fluorene polyarylate polymers and alloys
    Patent number: 4612350
    Abstract: Polyarylate polymers derived from (A) mixtures of bis(hydroxyphenyl)fluorene compounds with anthracene bisphenols, and (B) a mixture of isophthalic and terephthalic acid. Also disclosed are polyarylate alloy compositions comprising a bis(hydroxyphenyl)fluorene polyarylate and a polymer resin selected from polybisphenol A carbonate and polystyrene.
    Type: Grant
    Filed: July 3, 1985
    Date of Patent: September 16, 1986
    Assignee: Chevron Research Company
    Inventor: Phillip H. Parker
  • Process for the preparation of a low viscosity alkyl toluene or alkyl xylene sulfonate
    Patent number: 4608204
    Abstract: A process for the preparation of a low viscosity aqueous alkyl toluene or alkyl xylene sulfonate which comprises neutralizing alkyl toluene or alkyl xylene sulfonic acid with aqueous sodium hydroxide in the presence of sufficient sodium chloride to lower the viscosity of the sulfonate salt produced. Alternatively, the sodium chloride may be added subsequent to neutralization of the sulfonic acid.
    Type: Grant
    Filed: November 13, 1985
    Date of Patent: August 26, 1986
    Assignee: Chevron Research Company
    Inventors: Henry Y. Lew, Alan E. Straus
  • Process for the preparation of poly[3,6-N-substituted carbazole-1,3,4-oxadiazole-2,5-diyl] from N-substituted carbazole-3,6-dicarboxylic acid
    Patent number: 4599399
    Abstract: A one-step process for the preparation of poly[3,6-N-substituted carbazole-1,3,4-oxadiazole-2,5-diyl] which comprises polymerizing N-substituted carbazole-3,6-dicarboxylic acid, wherein the carbazole nitrogen is substituted with lower alkyl of 1 to 6 carbon atoms or phenyl, with a 0 to 30% molar excess of hydrazine or a hydrazine salt of a non-oxidizing acid in the presence of polyphosphoric acid.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: July 8, 1986
    Assignee: Chevron Research Company
    Inventor: Victor P. Kurkov
  • Carbazole-oxadiazole electroactive polymers
    Patent number: 4597896
    Abstract: Tractable doped electroactive polymers, comprising recurring units of a 3,6-N-substituted carbazole-1,3,4-oxadiazole-2,5-diyl ring system, and a sufficient concentration of a charge-compensating ionic dopant associated therewith.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: July 1, 1986
    Assignee: Chevron Research Company
    Inventors: Peter Denisevich, Jr., Albert H. Schroeder, Victor P. Kurkov, Shigeto Suzuki
  • 5-keto-bis(hydroxyphenyl)anthracene polyarylate copolymers and alloys
    Patent number: 4584335
    Abstract: Polyarylate polymers derived from (A) mixtures of 5-keto-bis(hydroxyphenyl)anthracene compounds with other bisphenols and (B) a mixture of isophthalic and terephthalic acid. Also disclosed are polyarylate alloy compositions comprising a 5-keto-bis(hydroxyphenyl)anthracene polyarylate and a polymer resin selected from polybisphenol A carbonate and polystyrene.
    Type: Grant
    Filed: December 28, 1984
    Date of Patent: April 22, 1986
    Assignee: Chevron Research Company
    Inventor: Phillip H. Parker
  • Process for the oligomerization of alpha olefins and catalyst therefor
    Patent number: 4579991
    Abstract: A process for the preparation of alpha olefin oligomers having predominantly terminal unsaturation using a catalyst system comprising an alkyl aluminum halide component and a second component comprising at least one zirconium compound, preferably in combination with at least one titanium compound. There is also disclosed a catalyst composition for use in this process.
    Type: Grant
    Filed: January 13, 1984
    Date of Patent: April 1, 1986
    Assignee: Chevron Research Company
    Inventor: Mary A. White
  • Mixed metal alkyl catalyst for olefin polymerization
    Patent number: 4567154
    Abstract: A catalyst composition for use in polymerizing alpha olefins which comprises a solid supported titanium complex and a cocatalyst comprising a mixture of an alkyl aluminum halide and a dialkyl magnesium or alkyl lithium compound.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: January 28, 1986
    Assignee: Chevron Research Company
    Inventor: Robert Bacskai
  • Refrigeration lubricating oil containing dialkyl sulfosuccinate
    Patent number: 4556496
    Abstract: A refrigeration lubricating oil composition comprising a branched-chain alkylbenzene or mixture of branched-chain alkylbenzenes containing a total of from 10 to 25 carbon atoms in the alkyl groups, and about 50 ppm to 5 weight percent of a dialkyl sulfosuccinate wherein each alkyl group has 3 to 7 carbon atoms.
    Type: Grant
    Filed: March 28, 1984
    Date of Patent: December 3, 1985
    Assignee: Chevron Research Company
    Inventor: David J. Glova