Patents by Inventor Mahn Won Kim

Mahn Won 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).

  • Polymers derived from ethylene and 1-butene for use in the preparation of lubricant disperant additives
    Patent number: 6030930
    Abstract: The invention pertains to oil soluble copolymers derived from ethylene and 1-butene which have a number average molecular weight between about 1,500 and 7,500, at least about 30 percent of all polymer chains terminated with ethylvinylidene groups, and ethylene-derived content of not greater than about 50 weight percent, and which form solutions in mineral oil free of polymer aggregates, as determined by light scattering measurements. Lubricating oil additives, particularly dispersants, produced by the functionalization and derivatization of these copolymers have enhanced performance (e.g., improved dispersancy and pour point) in lubricating oil compositions, attributable in part to the combination of properties characterizing the copolymers.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: February 29, 2000
    Assignee: Exxon Chemical Patents Inc
    Inventors: Jacob Emert, Albert Rossi, Salvatore Rea, Jeffrey William Frederick, Mahn Won Kim
  • Polymers derived from ethylene and 1-butene for use in the preparation of lubricant dispersant additives
    Patent number: 5663130
    Abstract: The invention pertains to oil soluble copolymers derived from ethylene and 1-butene which have a number average molecular weight between about 1,500 and 7,500, at least about 30 percent of all polymer chains terminated with ethylvinylidene groups, and ethylene-derived content of not greater than about 50 weight percent, and which form solutions in mineral oil free of polymer aggregates, as determined by light scattering measurements. Lubricating oil additives, particularly dispersants, produced by the functionalization and derivatization of these copolymers have enhanced performance (e.g., improved dispersancy and pour point) in lubricating oil compositions, attributable in part to the combination of properties characterizing the copolymers.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: September 2, 1997
    Assignee: Exxon Chemical Patents Inc
    Inventors: Jacob Emert, Albert Rossi, Salvatore Rea, Jeffrey William Frederick, Mahn Won Kim