Patents by Inventor Zdenek Tuzar

Zdenek Tuzar 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).

  • Method of producing glycol methacrylate or glycol acrylate polymers and copolymers
    Patent number: 4076921
    Abstract: A starting monomer mixture containing a minor amount of a cross linking agent is precipitation polymerized in a diluent/precipitant which is an unlimited solvent for the starting monomers but is neither a solvent nor a substantial swelling agent for the resultant polymer. The resultant product falling from the polymerization contains soluble and insoluble hydrophilic polymers and copolymers.
    Type: Grant
    Filed: October 13, 1972
    Date of Patent: February 28, 1978
    Assignee: Ceskoslovenska akademie ved
    Inventors: Miroslav Stol, Vladimir Stoy, Zdenek Tuzar
  • Method of producing soluble glycol methacrylate or glycol acrylate polymers and copolymers containing a minor amount of diester crosslinking comonomers
    Patent number: 3988305
    Abstract: A starting monomer mixture containing a minor amount of a cross linking agent is precipitation polymerized in a diluent/precipitant which is an unlimited solvent for the starting monomers but is neither a solvent or a substantial swelling agent for the resultant polymer. The amount of cross linking agent is maintained during polymerization at a critically low percent by volume relative to the entire polymerization mixture. The resultant product falling from the polymerization contains substantially only soluble hydrophilic polymers and copolymers.
    Type: Grant
    Filed: January 2, 1975
    Date of Patent: October 26, 1976
    Assignee: Ceskoslovenska akademie ved
    Inventors: Miroslav Stol, Vladimir Stoy, Zdenek Tuzar