Patents by Inventor Vladnir Subr

Vladnir Subr has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Hydrolytically degradable hydrophilic gels and the method for preparation thereof
    Patent number: 5124421
    Abstract: The solution pertains to hydrolytically degradable hydrophilic gels consisting of the individual chains of hydrophilic polymer interconnected with crosslinks containing the structure ##STR1## The method for preparation of the hydrolytically degradable gels consists in subjecting hydrophilic monomers or their mixture to the radical polymerization or copolymerization, or to copolymerization with hydrophobic monomers, in the presence of a new compound--N,O-dimethacryloylhydroxylamine--as a crosslinking agent, and, if desired, in the presence of a solvent, whereas the amount of hydrophilic monomers is 50 to 99.8 molar percent related to all monomers present.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: June 23, 1992
    Assignee: Ceskoslovenska Akademie Ved
    Inventors: Karel Ulbrich, Vladnir Subr