Patents Assigned to Ceskoslovenska
  • Method for the preparation of hydrophilic gels by monomer casting
    Patent number: 4534916
    Abstract: Hydrogels, e.g. hydrogel contact lens are prepared by casting, preferably spin casting, hydrophilic gels in a plastic mold, preferably polypropylene in the presence of a surface active agent.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: August 13, 1985
    Assignee: Ceskoslovenska
    Inventor: Otto Wichterle