Method for producing fire retardant, decay resistant lumber, and production line for its implementation
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United States of America Patent
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Aug 22, 2024
app pub date -
Feb 5, 2023
filing date -
Feb 5, 2023
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Abstract
The invention provides the method for producing fire retardant, decay and moisture resistant lumber, and production line for its implementation, achieved by combining a treatment chamber and other technological components in one production line, resulting in possibility of carrying out a multi-stage lumber treatment within the same treatment chamber, by using water-insoluble natural mineral raw materials to impart refractory, decay and moisture resistant properties to the lumber by impregnation through a two-stage process, consisting of converting the insoluble natural mineral, e.g. magnesite, into the wood impregnating solution, followed by transforming the dissolved mineral inside the wood capillaries into an insoluble heat, decay and moisture resistant material.
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