Rheology modifying admixture
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United States of America Patent
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Mar 22, 2011
Grant Date -
Dec 9, 2010
app pub date -
Jan 15, 2009
filing date -
Jan 16, 2008
priority date (Note) -
Expired
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Abstract
Rheology modifying admixture comprising a) from 80 to 99% w/w of hydroxyalkyl guar, cellulose ether, or mixture thereof; b) from 1 to 20% w/w of biopolymer selected from diutan gum and welan gum, and hydraulic compositions containing the rheology modifier admixture together with a superplasticizer.
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