C - Chemistry – Metallurgy – 08 – B
Patent
C - Chemistry, Metallurgy
08
B
260/225
C08B 37/00 (2006.01)
Patent
CA 1324127
TITLE OF THE INVENTION WELAN GUM IN CEMENT COMPOSITIONS ABSTRACT OF THE INVENTION Cement compositions, i.e., mortar, structured concrete, pre-cast concrete, and oilfield cement, comprising 0.01-0.9% (wt/wt) welan gum are described. The cement compositions exhibit improved workability, suspension of aggregates, air entrainment, sag resistance, flow characteristics and resistance to water loss. These improvements are maintained at elevated temperature.
616313
Allen Floyd L.
Best Glen H.
Lindroth Thomas A.
Goudreau Gage Dubuc
Monsanto Company
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