Construction Panel Having Improved Fixing Strength
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United States of America Patent
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Nov 23, 2017
app pub date -
Nov 19, 2015
filing date -
Nov 20, 2014
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Abstract
A gypsum product has a first polymeric additive and a second polymeric additive distributed therein, wherein the first polymeric additive is a synthetic polymer and the second polymeric additive is starch. It has been found that the combination of starch and a synthetic polymer may result in one or more of the following advantages in the manufacture and performance of gypsum products: —increased strength; —greater ease of manufacturing due to the increased fluidity of stucco slurries containing both additives; and —increased resistance to hygroscopic expansion.
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