Patents by Inventor George S. Culbertson

George S. Culbertson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Oxidation of rubbery polymeric hydrocarbons
    Patent number: 4145493
    Abstract: Continuous oxidation of rubbery polymeric hyrocarbons by mixing an oxygen-containing gas and a hot solution of the polymer in an oleaginous solvent at the inlet to a spraying device and spraying the mixture into a hot chamber provides substantially instantaneous oxidation of the polymer and disengagement of gas and liquid and at least the same extent of oxidation as the time consuming oxidation accomplished by sparging such gas into a volume of stirred hot solution.
    Type: Grant
    Filed: December 1, 1977
    Date of Patent: March 20, 1979
    Assignee: Standard Oil Company (Indiana)
    Inventors: Dennis G. Petrille, George S. Culbertson
  • Oxidation of polymers in presence of benzene sulfonic acid or salt thereof
    Patent number: 4011380
    Abstract: This invention provides a process for the oxidation of copolymers of ethylene and olefinic monomers in the temperature range of from about -40.degree. F to about 800.degree. F. The oxidation is carried out in the presence of about 0.05 weight percent to about 1.0 weight percent based on copolymer/oil solution, of an oil soluble benzene sulfonic acid or salt thereof. These benzene sulfonic acids or salts thereof affect the rate of the oxidation reaction and/or the color of the oxidized product or amine reaction products thereof.
    Type: Grant
    Filed: December 5, 1975
    Date of Patent: March 8, 1977
    Assignee: Standard Oil Company (Indiana)
    Inventors: Charles T. West, George S. Culbertson
  • 1-(N-dihydroxyalkyl) aminoalkylene-2-propenyl substituted hydrocarbons
    Patent number: 3996285
    Abstract: Title compounds are novel oil-soluble, detergent-dispersant addition products for crankcase lubricating oils and are prepared by reacting a primary or secondary amine with 1-chloro-2-methylpropenyl substituted alkane hydrocarbons, especially 1-chloro-2-methylpropenyl terminated butene polymers, having a total of 20 to 180 carbon atoms.
    Type: Grant
    Filed: April 17, 1975
    Date of Patent: December 7, 1976
    Inventor: George S. Culbertson
  • Mono or bis 3-(polypropyl or butyl-propenyl)-amino alkyl piperazines
    Patent number: 3960865
    Abstract: Title compounds are novel oil-soluble, detergent-dispersant addition products for crankcase lubricating oils and are prepared by reacting a primary or secondary amine with 1-chloro-2-methylpropenyl substituted alkane hydrocarbons, especially 1-chloro-2-methylpropenyl terminated butene polymers, having a total of 20 to 180 carbon atoms.
    Type: Grant
    Filed: April 17, 1975
    Date of Patent: June 1, 1976
    Assignee: Standard Oil Company
    Inventor: George S. Culbertson
  • 1-Amino-2-propenyl and 1-amino-2-methylpropenyl alkane hydrocarbon
    Patent number: 3950426
    Abstract: Title compounds are novel oil-soluble, detergent-dispersant addition products for crankcase lubricating oils and are prepared by reacting a primary or secondary amine with 1-chloro-2-methylpropenyl substituted alkane hydrocarbons, especially 1-chloro-2-methylpropenyl terminated butene polymers, having a total of 20 to 180 carbon atoms.
    Type: Grant
    Filed: August 27, 1973
    Date of Patent: April 13, 1976
    Assignee: Standard Oil Company
    Inventor: George S. Culbertson