Compositions – Leather or fur treating
Patent
1983-12-28
1986-02-04
Gron, Teddy S.
Compositions
Leather or fur treating
252 85A, 252 85C, 526287, 524547, C09K 702, C08L 3302
Patent
active
045684715
ABSTRACT:
An aqueous solution of a terpolymer, useful as fluid loss agent for drilling muds and not for cement slurries, is treated with acid and heat. An excellent fluid loss agent for cement is obtained. Very efficient liquid additive, for all purposes, which does not modify either the rheology, nor substantially the setting time.
REFERENCES:
patent: 3927717 (1975-12-01), Tate
patent: 3994852 (1976-11-01), Adams et al.
patent: 4048077 (1977-09-01), Engelhardt et al.
patent: 4309329 (1982-01-01), Lucas et al.
patent: 4340525 (1982-07-01), Hubner et al.
patent: 4357245 (1982-11-01), Engelhardt et al.
Etudes et Fabrication Dowell-Schlumberger
Gron Teddy S.
Wallen T. J.
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