Patents by Inventor Marianne DiBenedetto

Marianne DiBenedetto 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).

  • Crosslinked resins prepared from an N,N'-bis-imide and a Schiff base
    Patent number: 4066609
    Abstract: Crosslinked resins are prepared by reacting an N,N'-bis-imide and a Schiff base at a temperature of from 100.degree. C to 280.degree. C. The crosslinked resins have good thermal stability and are useful for making adhesives, coatings, laminates and molded articles.
    Type: Grant
    Filed: January 26, 1976
    Date of Patent: January 3, 1978
    Assignee: Ciba-Geigy Corporation
    Inventors: Franklin P. Darmory, Marianne DiBenedetto
  • Oxindole diamines
    Patent number: 4016173
    Abstract: Oxindole diamines are prepared by a process comprising reacting an isatin derivative with an anilide and a Friedel Crafts catalyst in an inert solvent at a temperature of from 50.degree. to 150.degree. C with subsequent hydrolysis of the reaction product to yield the oxindole diamine. These compounds are useful in preparing polyimide type polymers.
    Type: Grant
    Filed: September 26, 1975
    Date of Patent: April 5, 1977
    Assignee: Ciba-Geigy Corporation
    Inventors: Franklin P. Darmory, Marianne DiBenedetto
  • Polyimide, polyamide-imide or polyamide-acids with olefin end groups in combination with a reactive Schiff base compound
    Patent number: 3993630
    Abstract: This invention provides compositions containingA. a polyimide and polyamide-imide terminated with olefinic unsaturated end groups, or the corresponding polyamide-acids in combination with a reactive Schiff base compound, andB. a polyimide and polyamide-imide terminated with a Schiff base end group or the corresponding polyamide acids in combination with a reactive N,N'-bis-imide.These Schiff bases and N,N'-bis-imide compounds facilitate processing of the prepolymer resins by lowering the softening temperature, under processing conditions, and chain-extend and cross-link the base resins.
    Type: Grant
    Filed: December 26, 1973
    Date of Patent: November 23, 1976
    Assignee: Ciba-Geigy Corporation
    Inventors: Franklin P. Darmory, Marianne DiBenedetto
  • Crosslinked resins prepared from an N,N'-bis-imide and a schiff base
    Patent number: 3944525
    Abstract: Crosslinked resins are prepared by reacting an N,N'-bis-imide and a Schiff base at a temperature of from 100.degree.C to 280.degree.C. The crosslinked resins have good thermal stability and are useful for making adhesives, coatings, laminates and molded articles.
    Type: Grant
    Filed: October 3, 1973
    Date of Patent: March 16, 1976
    Assignee: Ciba-Geigy Corporation
    Inventors: Franklin P. Darmory, Marianne DiBenedetto