C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 8/30 (2006.01) C04B 24/26 (2006.01) C04B 24/32 (2006.01) C08F 8/32 (2006.01) C08F 8/48 (2006.01) C08K 3/34 (2006.01)
Patent
CA 2227901
The present invention is directed to a polyoxyalkylene ammonium salt of an imidized polycarboxylic acid polymer cement admixture, storage stable aqueous solutions of said polymer, and to improved cement compositions containing said polymer.
L'invention concerne un sel ammonium de polyoxyalkylène d'un adjuvant pour ciment à base d'un polymère d'acide polycarboxylique imidisé, des solutions aqueuses dudit polymère stables au stockage et des compositions de ciment améliorées contenant ledit polymère.
Darwin David Charles
Gartner Ellis Martin
Smart & Biggar
W.r. Grace & Co.,-Conn.
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