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US 2015/0147478 A1Published application
Fire-Resistant Cellulose Material
AssigneeNature Tech LLC
InventorThomas C. Shutt
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Abstract
A fire-resistant cellulose material composed of a liquid acid fire-retardant chemical composition and methods of producing the cellulose material are disclosed.
Claims28
A fire-resistant cellulose fiber material, comprising cellulosic fibers containing a liquid fire-retardant chemical composition or salt derivative therefrom absorbed therein, the liquid composition consisting essentially of one or more acids as the fire retardant chemical component in an aqueous solution;
- wherein the cellulose fiber material has a CRF value of 0.12 watts/cm2 or greater, as measured according to ASTM C-739.
A method of producing a fire-resistant cellulose fiber material, comprising:
- applying a liquid fire-retardant chemical composition to a cellulose material to produce a wetted, fire retardant-treated cellulose material having the fire retardant chemical composition absorbed therein, the liquid composition consisting essentially of one or more acids as the fire retardant chemical component in an aqueous solution;
- optionally, applying an aqueous alkali solution to the cellulose material such that the cellulose material has a pH of 5.5 to 8;
- and
- reducing the cellulose material in size to produce the fire-resistant cellulose fiber material.
1 more element
Dependencies are inferred from the claim text.