B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
B01F 17/50 (2006.01) C04B 24/18 (2006.01) C04B 24/34 (2006.01) C04B 28/02 (2006.01)
Patent
CA 2281178
This invention provides improved cement composition and biodegradable dispersants therefor. The biodegradable dispersants are basically comprised of a high molecular weight, phenolic hydroxy group blocked, alkali metal lignosulfonate.
Brenneis D. Chad
Chatterji Jiten
Dickman Stephen L.
Gray Dennis W.
Lebo Stuart E.
Halliburton Energy Services Inc.
Lignotech Usa Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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