Method of Manufacturing Gypsum Board with Improved Fire Resistance
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United States of America Patent
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Issued Date -
Sep 19, 2024
app pub date -
May 22, 2024
filing date -
Jan 23, 2017
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Abstract
The present disclosure is directed to a method of manufacturing gypsum board as well as the resulting gypsum board. The method comprises providing a gypsum slurry with a shrinkage-reducing additive comprising a metal salt of an acid, a silica, or a mixture thereof. As a result, the gypsum board includes gypsum and a shrinkage-reducing additive comprising a metal salt of an acid, a silica, or a mixture thereof. The gypsum board exhibits an area shrinkage of less than 20%.
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