Patents Assigned to Virginia Poly-technic Inc.
  • Chemical processes using aryl diphosphine containing catalysts
    Patent number: 6043398
    Abstract: The present invention provides novel water-soluble diphosphines having the formula ##STR1## wherein X, Y, R.sub.1-18 and n are defined herein, and which can be complexed with a transition metal to form a novel catalyst useful in such applications as hydroformylation.
    Type: Grant
    Filed: April 18, 1996
    Date of Patent: March 28, 2000
    Assignees: Celanese International Corporation, Virginia Poly-technic Inc.
    Inventors: Christian W. Kohlpaintner, Brian E. Hanson, Hao Ding