Patents Assigned to PolySep Surface Technologies Inc.
  • Separation media containing acyl diazepines
    Patent number: 5159039
    Abstract: Method of chromatographically separating a mixture by contacting said mixture under chromatographic separation conditions with a chromatographic separation stationary phase comprising an N-acyl diazepine polymer. In a preferred from, the polymer has been rendered substantially alkali-stable by substitution for the hydrogen at the C3 position on the diazepine ring.
    Type: Grant
    Filed: March 21, 1990
    Date of Patent: October 27, 1992
    Assignee: PolySep Surface Technologies Inc.
    Inventor: Henry S. Kolesinski
  • Separation media containing acyl diazepines
    Patent number: 5158682
    Abstract: Method of chromatographically separating a mixture by contacting said mixture under chromatographic separation conditions with a chromatographic separation stationary phase comprising an N-acyl diazepine polymer. In a preferred form, the polymer has been rendered substantially alkali-stable by substitution for the hydrogen at the C3 position on the diazepine ring.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: October 27, 1992
    Assignee: PolySep Surface Technologies Inc.
    Inventor: Henry S. Kolesinski