Patents by Inventor Raymond B. Hughes

Raymond B. Hughes 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).

  • Polyetherimide compositions and processes for production
    Patent number: 4471021
    Abstract: Improved polyetherimide compositions and processes for their production are described. Various polyetherimide derivatives including water-soluble and tri-functional isocyanate cross-linked resins are described. They permit production of water-based enamels and coatable particulates which may be employed in, for example, formulation of insulated electrical conductors.
    Type: Grant
    Filed: July 1, 1982
    Date of Patent: September 11, 1984
    Assignee: General Electric Company
    Inventors: Denis R. Pauz/e/, Raymond B. Hughes
  • Polyetherimide compositions and processes for production
    Patent number: 4429073
    Abstract: Improved polyetherimide compositions and processes for their production are described. Various polyetherimide derivatives including water-soluble and tri-functionalisocyanate cross-linked resins are described. They permit production of water-based enamels and coatable particulates which may be employed in, for example, formulation of insulated electrical conductors.
    Type: Grant
    Filed: July 1, 1982
    Date of Patent: January 31, 1984
    Assignee: General Electric Company
    Inventors: Denis R. Pauze, Raymond B. Hughes
  • High temperature paint
    Patent number: 4322332
    Abstract: A paint having desirable high temperature properties particularly suitable for industrial applications is described. The paint is composed of a conventional pigment in combination with a polyimide reaction product of a bis (etheranhydride) with a diamine compound, said reaction product being cross-linked with a tri-functional isocyanate agent.
    Type: Grant
    Filed: July 24, 1980
    Date of Patent: March 30, 1982
    Assignee: General Electric Company
    Inventor: Raymond B. Hughes
  • Laminate composition comprising polyetherimide impregnated fabric
    Patent number: 4313999
    Abstract: A laminate having desirable physical and high temperature properties is described. The laminate is composed of a conventional fabric material impregnated with a polyimide reaction product of substantially stoichimetric amounts of bis(etheranhydride) with a diamine compound, said reaction product being cross-linked with a tri-functional isocyanate agent.
    Type: Grant
    Filed: September 16, 1980
    Date of Patent: February 2, 1982
    Assignee: General Electric Company
    Inventor: Raymond B. Hughes