Emulsified comb polymer and defoaming agent composition and method of making same
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United States of America Patent
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Oct 31, 2000
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app pub date -
Jan 20, 1998
filing date -
Jan 21, 1997
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Abstract
Exemplary emulsion admixture for use in hydraulic cement compositions formed by emulsifying an antifoaming agent, surfactant, and a comb polymer having a carbon-containing backbone to which are attached cement-anchoring members and oxyalkylene groups. A method of making a stable emulsion admixture comprising the comb polymer, as well as a hydraulic cement composition comprising the admixture, are also described.
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