Patents by Inventor Robert J. Franko

Robert J. Franko 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).

  • Patent number: 5120844
    Abstract: Disclosed are tris-substituted 1,3,5-triazine compounds having at least one (N-alkyl-p-phenylendediamino) group on the triazine ring. The preferred compositions are tri-substituted with the alkyl p-phenylenediamino group. The preferred compounds may be prepared by reacting N-alkylphenylenediamine with a cyanuric halide.
    Type: Grant
    Filed: July 19, 1990
    Date of Patent: June 9, 1992
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Edward L. Wheeler, Franklin H. Barrows, Robert J. Franko
  • Patent number: 5068271
    Abstract: Disclosed are novel 2,4,6 substituted pyrimidines where the substituents may be the same or different groups. At least one substituent must be N-alkyl paraphenylenediamino, and the other substituents may be various radicals containing sulfur, oxygen or nitrogen or hydrogen or alkyl groups. The compounds are useful as antioxidants and antiozonants for unsaturated compounds and polymers.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: November 26, 1991
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Edward L. Wheeler, Franklin H. Barrows, Robert J. Franko
  • Patent number: 5047530
    Abstract: Disclosed are novel tris(N-alkyl-p-phenylenediamino)-1,3,5-triazine compounds useful as antiozonants for unsaturated high polymers. The compounds may be prepared by reacting N-alkylphenylenediamine with a cyanuric halide.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: September 10, 1991
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Edward L. Wheeler, Franklin H. Barrows, Robert J. Franko, Wadim Batorewicz
  • Patent number: 4972010
    Abstract: Disclosed are tris-substituted 1,3,5-triazine compounds having at least one (N-alkyl-p-phenylenediamino) group on the triazine ring. The preferred compositions are tri-substituted with the alkyl p-phenylenediamino group. The preferred compounds may be prepared by reacting N-alkylphenylenediamine with a cyanuric halide.
    Type: Grant
    Filed: September 21, 1988
    Date of Patent: November 20, 1990
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Edward L. Wheeler, Franklin H. Barrows, Robert J. Franko
  • Patent number: 4956405
    Abstract: Rubber articles subjected to ozone while under dynamic flexing conditions are protected using a novel triazine class of materials, specifically tris-(N-alkyl-p-phenylenediamino)-1,3,5-triazines. Belts, hose, air springs, roofing membranes, etc. are preferred articles of the invention.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: September 11, 1990
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Edward L. Wheeler, Robert J. Franko
  • Patent number: 4946956
    Abstract: Disclosed are novel 2,4,6 substituted pyrimidines where the substituents may be the same or different groups. At least one substituent must be N-alkyl parphenylenediamino, and the other substituents may be various radicals containing sulfur, oxygen or nitrogen or hydrogen or alkyl groups. The compounds are useful as antioxidants and antiozonants for unsaturated compounds and polymers.
    Type: Grant
    Filed: September 21, 1988
    Date of Patent: August 7, 1990
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Edward L. Wheeler, Franklin H. Barrows, Robert J. Franko
  • Patent number: 4839188
    Abstract: Natural or synthetic fats are stabilized against oxidative and color degradation by the incorporation therein of new tris(N-alkyl-p-phenylene diamino)-1,3,5-triazine compounds.
    Type: Grant
    Filed: May 27, 1988
    Date of Patent: June 13, 1989
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Edward L. Wheeler, Robert J. Franko
  • Patent number: 4794134
    Abstract: Rubber articles subjected to ozone while under dynamic flexing conditions are protected using a novel triazine class of materials, specifically tris-(N-alkyl-p-phenylenediamino)-1,3,5-triazines. Belts, hose, air springs, roofing membranes, etc. are preferred articles of the invention.
    Type: Grant
    Filed: March 4, 1988
    Date of Patent: December 27, 1988
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Edward L. Wheeler, Robert J. Franko
  • Patent number: 4794135
    Abstract: Disclosed are novel tris(N-alkyl-p-phenylenediamino)-1,3,5-triazine compounds useful as antiozonants for unsaturated high polymers. The compounds may be prepared by reacting N-alkylphenylenediamine with a cyanuric halide.
    Type: Grant
    Filed: August 28, 1987
    Date of Patent: December 27, 1988
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Edward L. Wheeler, Franklin H. Barrows, Robert J. Franko, Wadim Batorewicz
  • Patent number: D560747
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: January 29, 2008
    Inventors: Billy R. Shelton, Robert J. Franko