ADDITIVE SYSTEM INCLUDING A POLYALKOXYLATED PHOSPHONATE, A POLYALKOXYLATED POLYCARBOXYLATE AND A RETARDING AGENT, AND USE THEREOF
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United States of America Patent
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Issued Date -
Jun 16, 2016
app pub date -
May 2, 2014
filing date -
May 3, 2013
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The disclosure relates to an additive system for a hydraulic composition including: at least one polyalkoxylated phosphonate polymer; at least one polyalkoxylated polycarboxylate polymer; and at least one retarding agent of formula (I): C1R′H(OH)[CH(OH)]nC(O)O1R (I) for improved maintenance of the rheology of hydraulic compositions of Portland cement.
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