Patents by Inventor Istvan Borsodi

Istvan Borsodi 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).

  • Ammonium and amine salts of di-perfluoroalkyl group containing acids and compositions and use thereof
    Patent number: 4536254
    Abstract: Ammonium and amine salts of acids having the formula ##STR1## wherein R.sub.f is a perfluoroalkyl group; R.sub.1 is alkylene or substituted alkylene; X is --S--, --SO--, or --SO.sub.2 --; R.sub.2 is hydrogen, alkyl, aryl, substituted aryl, --B--COOH or a --B--COO anion; B is a covalent bond, arylene or alkylene; Z is the ammonium or amine cation; p is the anionic charge, q is the cationic charge; and p.sub.1 and q.sub.1 are the balanced mole equivalents respectively, are provided. These salts applied in the form of aqueous dispersions or emulsions, are useful in rendering cellulosic and natural and synthetic polyamide materials oil and water repellent.
    Type: Grant
    Filed: July 23, 1984
    Date of Patent: August 20, 1985
    Assignee: Ciba-Geigy Corporation
    Inventors: Robert A. Falk, Istvan Borsodi
  • Ethanolamine salts of di-perfluoroalkyl group containing acids
    Patent number: 4419298
    Abstract: Ammonium and amine salts of acids having the formula ##STR1## wherein R.sub.f is a perfluoroalkyl group; R.sub.1 is alkylene or substituted alkylene; X is --S--, --SO--, or --SO.sub.2 --; R.sub.2 is hydrogen, alkyl, aryl, substituted aryl, --B--COOH or a --B--COO anion; B is a covalent bond, arylene or alkylene; Z is the ammonium or amine cation; p is the anionic charge, q is the cationic charge; and p.sub.1 and q.sub.1 are the balanced mole equivalents respectively, are provided. These salts applied in the form of aqueous dispersions or emulsions, are useful in rendering cellulosic and natural and synthetic polyamide materials oil and water repellent.
    Type: Grant
    Filed: August 12, 1981
    Date of Patent: December 6, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Robert A. Falk, Istvan Borsodi, Dieter Reinehr