Heat protective material and method of making the material

Details Heat protective material and method of making the material Heat protective material and method of making the material

1974-01-21

1977-01-04

Ansher, Harold

Compositions

Electrolytes for electrical devices

102103, 102105, 252 81, 2521883R, 260 25M, 260 25FP, 260 37EP, 260830S, 428323, 428330, 428419, 428921, C04B 4300

Patent

active

040011267

ABSTRACT:
This invention relates to materials having properties of withstanding temperatures in the thousands of degrees for extended periods of time without gross decomposition. The invention also relates to methods of producing such materials.
The materials constituting this invention include binders and fillers mixed with the binders. The materials form a char when subjected to the elevated temperatures. The surface of the char glows in the luminous to incandescent range and rejects incoming heat by thermal radiation. The fillers have the properties of decomposing through a number of successive steps, each step advanced in temperature from the previous step by a relatively small amount. The gaseous products of such successive decompositions flow through the char, which is porous so as to provide transpirational heating. The resultant gases produced at the surface of the material provide a gaseous barrier to absorb heat and to transport heat away from the surface of the material.

REFERENCES:
patent: 2452054 (1948-10-01), Jones et al.
patent: 2912392 (1959-11-01), Stilbert et al.
patent: 3114840 (1963-12-01), Johnston
patent: 3124542 (1964-03-01), Kohn
patent: 3457215 (1969-07-01), Sommer
patent: 3472812 (1969-10-01), Byrne et al.
patent: 3539474 (1970-11-01), Sommer

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