Diffusely reflecting paints including polytetrafluoroethylene and method of manufacture

US4518722A · kind A · utility

Assignee

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

Inventors

• John B. Schutt · Silver Spring, US
• Michael C. Shai · Gambrills, US

Key dates

• Filing date: Apr 26, 1984
• Grant date: May 21, 1985
• Expiry date: Apr 26, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D183/04
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A highly diffuse, reflective paint comprising an alcohol soluble binder, polytetrafluoroethylene (TFE) and an alcohol for coating a substrate and forming an optical reference with a superior Lambertian characteristic. A method for making the paint by first mixing the binder and alcohol, and thereafter by mixing in outgassed TFE. A wetting agent may be employed to aid the mixing process.