Patents by Inventor William J. Gilwee, Jr.

William J. Gilwee, Jr. 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).

  • Toughening reinforced epoxy composites with brominated polymeric additives
    Patent number: 4588778
    Abstract: Cured polyfunctional epoxy resins including tris(hydroxyphenyl)methane triglycidyl ether are toughened by addition of polybrominated polymeric additives having an EE below 1500 to the pre-cure composition. Carboxy-terminated butadiene-acrylonitrile rubber is optionally present in the pre-cure mixture as such or as a pre-formed copolymer with other reactants. Reinforced composites, particularly carbon-reinforced composites, of these resins are disclosed and shown to have improved toughness.
    Type: Grant
    Filed: August 15, 1985
    Date of Patent: May 13, 1986
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Zohar Nir, William J. Gilwee, Jr.
  • Toughening reinforced epoxy composites with brominated polymeric additives
    Patent number: 4550129
    Abstract: Cured polyfunctional epoxy resins including tris(hydroxyphenyl)methane triglycidyl ether are toughened by addition of polybrominated polymeric additives having an EE below 1500 to the pre-cure composition. Carboxy-terminated butadiene-acrylonitrile rubber is optionally present in the precure mixture as such or as a pre-formed copolymer with other reactants. Reinforced composites, particularly carbon-reinforced composites, of these resins are disclosed and shown to have improved toughness.
    Type: Grant
    Filed: May 12, 1983
    Date of Patent: October 29, 1985
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Zohar Nir, William J. Gilwee, Jr.
  • Honeycomb-laminate composite structure
    Patent number: 4061812
    Abstract: A honeycomb-laminate composite structure comprisingA. a cellular core of a polyquinoxaline foam in a honeycomb structure, andB. a layer of a non-combustible fibrous material impregnated with a polyimide resin laminated on the cellular core,A process for producing the honeycomb-laminate composite structure and articles containing the honeycomb-laminate composite structure.
    Type: Grant
    Filed: June 22, 1976
    Date of Patent: December 6, 1977
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: William J. Gilwee, Jr., John A. Parker