Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1985-10-03
1987-04-14
Schwartz, Richard A.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
548352, 564138, 564153, 564159, C07D20948
Patent
active
046580360
ABSTRACT:
A process is disclosed for preparation of invert emulsifiers useful for oil-base drilling muds. The emulsifiers are prepared by reacting at least one tall oil fatty acid with acrylic acid, maleic anhydride or fumaric acid. The product of this reaction is substantially reacted with diethylene triamine, and at least one tall oil fatty acid to give the invert emulsifier.
REFERENCES:
patent: 3804852 (1974-04-01), Haemmerle et al.
patent: 4225497 (1980-09-01), Baudouin et al.
McDaniel Terry B.
Schmalz Richard L.
Schwartz Richard A.
Westvaco Corporation
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