Patents by Inventor Beth Yoon

Beth Yoon 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).

  • Alkylaromatic lubricant fluids
    Publication number: 20080234157
    Abstract: The alkylaromatic compositions include an aromatic moiety other than unsubstituted naphthalene; and an alkyl moiety having a carbon atom number in the range between 12 to 40, wherein said alkyl moiety is attached to said aromatic moiety such that at least 25 mol % of the benzylic carbons are quaternary. The process for producing the alkylaromatic compositions include contacting at least one an aromatic compound and a mono-olefin having a carbon atom number in the range between 12 to 40 in the presence of an acidic alkylation catalyst under alkylation conditions, wherein at least 50 mol % of the mono-olefin structure comprises a vinylidenyl structure, and thereby producing said alkylaromatic compound having at least 25 mol % of benzylic carbons that are quaternary. The alkylaromatic compositions disclosed herein are liquids that have improved thermo- and oxidative stability and pour point.
    Type: Application
    Filed: March 14, 2008
    Publication date: September 25, 2008
    Inventors: Beth A. Yoon, Margaret M. Wu, Christine N. Elia
  • Borated-epoxidized polybutenes as low-ash anti-wear additives for lubricants
    Patent number: 7419940
    Abstract: An engine lubricant that is substantially free of zinc and phosphorous contains an antiwear additive comprising borated 1,2 epoxy mixed polybutenes having an average carbon number in the range of C20 to about C120.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: September 2, 2008
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Beth A. Yoon, Liehpao Oscar Farng, George Skic
  • Borated-epoxidized polybutenes as low-ash anti-wear additives for lubricants
    Publication number: 20050137096
    Abstract: An engine lubricant that is substantially free of zinc and phosphorous contains an antiwear additive comprising borated 1,2 epoxy mixed polybutenes having an average carbon number in the range of C20 to about C120.
    Type: Application
    Filed: September 28, 2004
    Publication date: June 23, 2005
    Inventors: Beth Yoon, Liehpao Farng, George Skic