Method and composition for controlled heat release and disposable chemical heater utilizing same
AssigneeJ.I. Enterprises, Inc.
InventorJoseph Iannicelli
Life of this patent
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Abstract
A method and composition for controlling an exothermic reaction between a powerful oxidizing agent such as the permanganate salts, and reducing agents such as polyhydroxy organic compounds, comprises non-charged, relatively hydrophobic pigments which can be slurried at relatively high solids. The pigment may be calcium carbonate, diatomaceous earth (diatomite), talc, or blends thereof. The pigments are not flocculated in permanganate slurries and can be dispersed at high solids contents. The dispersions can be spray dried or pelletized with controllable moisture contents from about 0.1 to 10%. The resulting composition yields effective control of the exothermic reaction with more uniform and reproducible results.
Claims13
A composition for generating a controlled heat release, the composition comprising a reducing agent and an oxidizing agent, wherein the oxidizing agent comprises oxidizer particles coated with a lyophobic pigment.
A process for preparing an oxidizing agent for generating a controlled heat release when contacted with a reducing agent, the process comprising spray drying a slurry containing an oxidizer and a lyophobic pigment.
A process for preparing an oxidizing agent for generating a controlled heat release when contacted with a reducing agent, the process comprising pelletizing a slurry containing an oxidizer and a lyophobic pigment.
Dependencies are inferred from the claim text.