Light weight fire resistant graphite composites

US4598007A · kind A · utility

Assignee

• The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · US

Inventors

• Demetrius A. Kourtides · San Jose, US
• John A. Parker · Los Altos, US
• Ming-Ta Hsu · San Jose, US

Key dates

• Filing date: Feb 28, 1985
• Grant date: Jul 1, 1986
• Expiry date: Feb 28, 2005

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/30
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Composite structures having a honeycomb core and characterized by lightweight and excellent fire resistance are provided. These sandwich structures employ facesheets made up of bismaleimide-vinyl styrylpyridine copolymers with fiber reinforcement such as carbon fiber reinforcement. In preferred embodiments the facesheets are over-layered with a decorative film. The properties of these composites make them attractive materials of construction for aircraft and spacecraft.