With Binder's Platform Patents (Class 56/160)
Self-raking mechanism (Class 56/161)
Belt-carried endless path (Class 56/162)
  • Method for preparing N-benzyloxycarbonyl amino acids containing additional functionality
    Patent number: 4500726
    Abstract: Poly(oxyalkylene) glycols and polymer-supported poly(oxyalkylene) alcohols are employed as phase-transfer reagents in blocking primary amino functionality of alkali metal salts of amino acids with a benzyloxycarbonyl group.
    Type: Grant
    Filed: May 23, 1984
    Date of Patent: February 19, 1985
    Assignee: PPG Industries, Inc.
    Inventor: James A. Krogh