Patents by Inventor Leo A. Kim

Leo A. Kim 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).

  • Internal olefin hydroformylation process
    Patent number: 4198352
    Abstract: Internal olefins are hydroformylated to linear aldehydes in substantial amounts by contacting the internal olefins with hydrogen, carbon monoxide and a catalyst comprising a ligand stabilized ionic platinum compound of the general formula PtCl(CO)(Ligand).sub. 2.sup.+ An.sup.- complexed with a modifying metal halide selected from tin, zinc, or germanium halides.
    Type: Grant
    Filed: November 29, 1978
    Date of Patent: April 15, 1980
    Assignee: Shell Oil Company
    Inventors: Leo Kim, Sunny C. Tang
  • Resin-ligand-metal complex compositions
    Patent number: 4179403
    Abstract: A composition comprising an ion exchange resin and an organic linking compound having at least one resin-compatible moiety ionically bound to said resin and further having at least one metal complexible moiety selected from the group consisting of trivalent nitrogen, trivalent phosphorus, trivalent arsenic, trivalent bismuth and trivalent antimony complexed to a metal selected from Group IVB, VB, VIB, VIIB, VIII and IB metals, said composition being useful in heterogeneous catalysis.
    Type: Grant
    Filed: December 19, 1977
    Date of Patent: December 18, 1979
    Assignee: Shell Oil Company
    Inventors: Leo Kim, Timm E. Paxson, Sunny C. Tang
  • Resin-metal-ligand composition
    Patent number: 4179402
    Abstract: A composition comprising an ion exchange resin, a metal selected from the transition group of elements bound to said resin and an organic linking compound which has at least one moiety which is ionically bonded to said resin and which further has at least one moiety which is coordinately bonded to said metal.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: December 18, 1979
    Assignee: Shell Oil Company
    Inventors: Leo Kim, Timm E. Paxson, Sunny C. Tang
  • Production of methyl esters by contacting methanol or dimethyl ether with carbon monoxide and zinc iodide
    Patent number: 4166189
    Abstract: Method for the production of branched chain esters comprising contacting methanol and/or dimethyl ether and carbon monoxide with zinc iodide at a temperature of from about 180.degree. C. to 450.degree. C. Improved selectivity to methyl pivalate is obtained by incorporating ethylene, propylene and/or isobutylene into the reaction mixture.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: August 28, 1979
    Assignee: Shell Oil Company
    Inventors: Milton M. Wald, Leo Kim
  • Catalytic hydration of ethylene oxide to ethylene glycol
    Patent number: 4165440
    Abstract: An improved process for the low temperature preparation of ethylene glycol by the catalytic hydration of ethylene oxide using a fluorinated alkyl sulfonic acid ion exchange resin is described.
    Type: Grant
    Filed: October 3, 1977
    Date of Patent: August 21, 1979
    Assignee: Shell Oil Company
    Inventor: Leo Kim
  • Process for methylation of olefins
    Patent number: 4151214
    Abstract: Method for the reaction of an olefin comprising contacting an olefin and a reactant selected from methanol, dimethyl ether, or mixtures thereof, with zinc iodide, zinc bromide, or mixtures thereof, at a temperature of from about 180.degree. C. to 450.degree. C.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: April 24, 1979
    Assignee: Shell Oil Company
    Inventors: Leo Kim, Milton M. Wald
  • Secondary alcohol ethoxylate process
    Patent number: 4139566
    Abstract: In the process of reacting olefins with (poly)alkylene glycols in the prsence of acid catalysts to produce the corresponding (poly)alkylene glycol monoalkyl ether, the improvement which comprises carrying out the reaction in the presence of sulfur dioxide.
    Type: Grant
    Filed: October 3, 1977
    Date of Patent: February 13, 1979
    Assignee: Shell Oil Company
    Inventors: Leo Kim, Timm E. Paxson
  • Hydrogen peroxide stabilization
    Patent number: 4133869
    Abstract: Aqueous hydrogen peroxide solutions are stabilized against decomposition due to transition metal impurities by adding at least about 0.001 milliliters of acetonitrile per milliliter of total solution.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: January 9, 1979
    Assignee: Shell Oil Company
    Inventor: Leo Kim
  • Hydrogen peroxide stabilization
    Patent number: 4132762
    Abstract: Hydrogen peroxide in aqueous solution is stabilized against decomposition due to transition metal impurities by a synergistic combination of sulfonic acid type ion exchange resin and acetonitrile.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: January 2, 1979
    Assignee: Shell Oil Company
    Inventor: Leo Kim
  • Epichlorohydrin purification process
    Patent number: 4127593
    Abstract: 2,3-Butanedione impurity is removed from epichlorohydrin by contacting the impurity containing epichlorohydrin with a macroreticular poly(t-butyl acrylate) resin having a pore volume of about 0.5 ml/ml, an average pore diameter of about 90 angstroms and a surface area of about 450 m.sup.2 /gm.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: November 28, 1978
    Assignee: Shell Oil Company
    Inventors: Leo Kim, Sunny C. Tang
  • Selective hydrogenation of olefinic impurities in epichlorohydrin
    Patent number: 4127594
    Abstract: Beta-chloroacrolein and 5,6-epoxyhexene-1 impurities present in minor amounts in epichlorohydrin are selectively removed with minimal concomitant destruction of epichlorohydrin by hydrogenation in the presence of a catalyst comprising rhodium, platinum or palladium deposited on a non-acidic, refractory support.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: November 28, 1978
    Assignee: Shell Oil Company
    Inventors: Elmer A. Anderson, Leo Kim, Sunny C. Tang
  • Conversion of butadiene (1,3) and methanol
    Patent number: 4126642
    Abstract: Method for the conversion of butadiene (1,3) comprising contacting butadiene (1,3) with zinc iodide, zinc bromide (or mixtures thereof) and a reactant selected from methanol, dimethyl ether, or mixtures thereof, at a temperature of from about 180.degree. C to about 450.degree. C.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: November 21, 1978
    Assignee: Shell Oil Company
    Inventors: Leo Kim, Milton M. Wald
  • Oxidation process
    Patent number: 4065505
    Abstract: Meta-phenoxytoluene is oxidized by selenium dioxide in the presence of a dehydration agent to yield meta-phenoxy-benzaldehyde containing less than 250 ppm dissolved selenium at a selectivity based on the toluene of about 90% or better.
    Type: Grant
    Filed: November 5, 1976
    Date of Patent: December 27, 1977
    Assignee: Shell Oil Company
    Inventors: Leo Kim, Timm E. Paxson, Sunny C. Tang
  • Process for producing triptane by contacting methanol or dimethyl ether with zinc chloride
    Patent number: 4059647
    Abstract: Method for the production of triptane comprising contacting a reactant selected from methanol, dimethyl ether, or mixtures thereof, with zinc iodide at a temperature of from about 180.degree. to about 240.degree. C.
    Type: Grant
    Filed: October 2, 1975
    Date of Patent: November 22, 1977
    Assignee: Shell Oil Company
    Inventors: Milton M. Wald, Leo Kim
  • Process for producing triptane by contacting methanol or dimethyl ether with zinc bromide
    Patent number: 4059646
    Abstract: Method for the production of triptane comprising contacting a reactant selected from methanol, dimethyl ether, or mixtures thereof, with zinc bromide at a temperature of from about 210.degree. to about 245.degree. C.
    Type: Grant
    Filed: October 2, 1975
    Date of Patent: November 22, 1977
    Assignee: Shell Oil Company
    Inventors: Milton M. Wald, Leo Kim
  • Process for the epoxidation of olefins
    Patent number: 4024165
    Abstract: A process for the epoxidation of olefins in which olefin and hydrogen peroxide are brought into contact in a fluorinated alcoholic solvent in which are dissolved a transition metal compound and a nitrogen-containing organic compound are described.
    Type: Grant
    Filed: June 29, 1976
    Date of Patent: May 17, 1977
    Assignee: Shell Oil Company
    Inventors: Thomas M. Shryne, Leo Kim
  • Catalytic production of hydrogen peroxide from its elements
    Patent number: 4007256
    Abstract: Hydrogen peroxide is produced by contacting hydrogen and oxygen with a supported catalyst in the presence of water, an organic nitrogen containing compound and a strong acid. The hydrogen peroxide so produced can be used in processes for the oxidation of organic materials.
    Type: Grant
    Filed: August 5, 1976
    Date of Patent: February 8, 1977
    Assignee: Shell Oil Company
    Inventors: Leo Kim, Galeon W. Schoenthal