Compositions – Leather or fur treating
Patent
1981-06-24
1983-05-03
Guynn, Herbert B.
Compositions
Leather or fur treating
252 493, C09K 702
Patent
active
043820026
ABSTRACT:
Aqueous drilling fluids containing a minor amount of an additive composition featuring mono- and di-esters of C.sub.12 -C.sub.50 aliphatic hydrocarbon substituted succinic acids or anhydrides, such as octadecenyl succinic anhydride with thio-bis-alkanols such as dithiodiethanol. Such fluids are especially useful where reduced torque drilling fluids are needed. Another embodiment of this invention relates to a method of drilling utilizing the above-described fluids.
REFERENCES:
patent: 3027324 (1962-03-01), Rosenberg
patent: 3761410 (1973-09-01), Mondshine et al.
patent: 4053422 (1977-10-01), Walker
patent: 4064056 (1977-12-01), Walker et al.
patent: 4141840 (1979-02-01), Walker et al.
Brownawell Darrell W.
Gutierrez Antonio
Walker Thad O.
Dexter Roland A.
Exxon Research & Engineering Co.
Guynn Herbert B.
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