Patents by Inventor I-Fun Su

I-Fun Su 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).

  • Star-like poly(oxyalkyene)triamide alkoxylates gasoline additive and the method for producing the same
    Patent number: 6270540
    Abstract: A new class of useful gasoline additives is prepared via two consecutive reactions including: (1) amidation of water-soluble hydrophilic, low molecular weight triamine with alkyl acetate at an elevated temperature under N2 pressure to prepare a symmetrical triamide; and (2) alkoxylation of the triamides with 1,2-epoxyalkane to prepare poly(oxyalkylene)triamide alkoxylate of three telechelic hydroxy groups, having the general formula: wherein x, y and z are from 1 to 20, R is poly(oxyalkylene) of a molecular weight from 72 to 1000, and R′ is an alkyl having a carbon number from 2 to 18.
    Type: Grant
    Filed: October 4, 1999
    Date of Patent: August 7, 2001
    Assignee: Chinese Petroleum Corporation
    Inventors: Jiang-Jen Lin, I-Fun Su, Kun-Hai Lin, Yung-Sheng Ho, Che-Nan Lee, Wen-Jei Shiu, Wei-Shiun Ku