Patents by Inventor Sujuan Ba

Sujuan Ba 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).

  • Process for alkoxylating carbonyl-functionalized phenols using double metal cyanide catalysts
    Patent number: 5786514
    Abstract: A process for alkoxylating phenols is disclosed. The process comprises reacting a carbonyl-functionalized phenol with an alkylene oxide in the presence of a substantially non-crystalline double metal cyanide (DMC) catalyst. The process offers fast reaction times at low catalyst levels, reduced problems with condensation side reactions, and low-color, low-viscosity, low-polydispersity alkoxylated phenols. The process enables efficient preparation of alkoxylated carbonyl-functonalized phenols that are especially valuable in the surfactant industry.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: July 28, 1998
    Assignee: Arco Chemical Technology, L.P.
    Inventors: Jianzhong Shen, Sujuan Ba, David M. Braunstein, Haven S. Kesling, Jr.