Patents Assigned to Nacalai Tesque, Inc.
  • Optical resolution agent and process for the preparation of the same
    Patent number: 5302633
    Abstract: An optical resolution agent which is prepared by polymerizing a polysaccharide derivative having vinyl groups introduced into the hydroxyl groups thereof through an ester or urethane linkage on the surface of a porous support or by copolymerizing such a polysaccharide derivative having vinyl groups introduced thereinto with a porous support having vinyl groups introduced thereinto and which enables an efficient optical resolution of a racemic modification by chromatography.
    Type: Grant
    Filed: January 26, 1993
    Date of Patent: April 12, 1994
    Assignee: Nacalai Tesque, Inc.
    Inventors: Kazuhiro Kimata, Riyo Tsuboi