Firestop material
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United States of America Patent
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Dec 26, 2017
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N/A
app pub date -
Jul 22, 2005
filing date -
Jul 22, 2004
priority date (Note) -
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Abstract
The invention relates to a firestop material consisting of a polymer foam, notably a polyurethane foam, containing flame-retardant means. This firestop material is characterized in that the flame-retardant means consist of means designed to form a charred layer on the foam surface, under the effect of a rise in the temperature of the material resulting from a fire, and are supplemented by at least one inorganic type flame retardant. The invention furthermore relates to a chemical composition intended, after expansion and drying, to form such a firestop material, and to a use of such a firestop material.
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