COMPOSITIONS FOR THE MANUFACTURE OF GYPSUM BOARDS, METHODS OF MANUFACTURE THEREOF, AND GYPSUM BOARDS FORMED THEREFROM
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United States of America Patent
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app pub date -
May 12, 2009
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Sep 24, 2008
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Abstract
A composition for the manufacture of a gypsum board comprising hydrated pregelatinized starch, sulfonated styrene butadiene latex and stucco with 0.4 to 3 wt. % of starch based on the stucco weight is disclosed. The composition provides enhanced strength in the absence of other strengthening agents.
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