Sprayable lightweight ablative coating

US5064868A · kind A · utility

Assignee

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

Inventors

• William G. Simpson · Huntsville, US
• Max H. Sharpe · Huntsville, US
• William E. Hill · Auburn, US

Key dates

• Filing date: Nov 28, 1990
• Grant date: Nov 12, 1991
• Expiry date: Nov 28, 2010

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S521/907
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

An improved lightweight, ablative coating that may be spray applied and cured without the development of appreciable shrinkage cracks. The ablative mixture consists essentially of phenolic microballoons, hollow glass spheres, glass fibers, ground cork, a flexibilized resin binder, and an activated colloidal clay.