Patents by Inventor Wei-Yaug Su

Wei-Yaug 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).

  • Publication number: 20040015016
    Abstract: Disclosed herein is a process for the reductive alkylation of primary amines to form secondary amines, by high pressure reaction of the primary amine with an alkylating agent and hydrogen in the presence of a catalyst which comprises metallic palladium. A process of the present invention is characterized in having high conversion rates and high selectivities, both greater than 95% on a first pass through the reactor. According to a preferred embodiment, the secondary amine produced comprises at least one 2-alkyl group bonded to the nitrogen atom of the primary amine product.
    Type: Application
    Filed: July 22, 2002
    Publication date: January 22, 2004
    Applicant: Huntsman Petrochemical Corporation
    Inventors: Wei-Yaug Su, Christopher H. Nelli