Accession Number : AD0164445

Title :   Photochromic-Thermochromic Coating Composition.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Allinikov,Sidney

Report Date : 10 JUL 1973

Pagination or Media Count : 6

Abstract : In the patent a photochromic-thermochromic coating composition is provided that comprises a resin base paint, a dye and an enzyme. The coating composition is sensitive to light and heat, thereby rendering it particularly useful in the non-destructive testing of structures to determine the presence of possible flaws. An object of the invention is provided a method for the non-destructive testing of laminated structures for aircraft.

Descriptors :   *Coatings, *Photochromic materials, *Patents, Microstructure, Metals, Thermal properties, Nondestructive testing, Aircraft, Laminates, Defects(Materials)

Subject Categories : Coatings, Colorants and Finishes
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE