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Method for producing flame retardant porous products and products produced thereby

United States Patent

*** EXPIRED ***
August 4, 1998
View the Complete Patent at the US Patent & Trademark Office
A method for fire retarding porous products used for thermal energy storage and products produced thereby is provided. The method includes treating the surface of the phase change material-containing porous products with a urea fire-retarding agent. Upon exposure to a flame, the urea forms an adduct with the phase change material which will not sustain combustion (is self-extinguishing) in air. No halogens or metal oxides are contained in the fire retardant, so no potentially noxious halide smoke or fumes are emitted if the product is continuously exposed to a flame.
Salyer; Ival O. (Dayton, OH)
The University of Dayton (Dayton, OH)
08/ 837,371
April 17, 1997
GOVERNMENT RIGHTS The Government has rights in this invention pursuant to Contract No. 19X-SC542C awarded by the Department of Energy.