Flame-retardant and latent hardener composition, a method for making flame-retarded wood and cellulose-fiber based composites and boards and flame-retarded wood and cellulose-fiber based boards
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United States of America
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Feb 11, 2025
Grant Date -
Jun 24, 2021
app pub date -
May 8, 2019
filing date -
May 8, 2019
priority date (Note) -
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Abstract
Provided is a flame retardant and latent hardener composition including a blend of 30-100% (by weight based on total solids) of diammonium hydrogen phosphate, and dihydrogen phosphate, 0-50% (by weight based on total solids) of monoammonium. The flame-retardant/hardener composition is prepared as a solid blend or a liquid composition, the liquid composition being an aqueous composition including a liquid aqueous solution of the contents ranging from 25% w/w to 80% w/w. Methods for making flame retarded fiber boards using the composition as flame retarder and a hardener for the resin used in the production of the boards are also provided.
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