Compositions – Leather or fur treating
Patent
1986-01-29
1988-04-26
Schofer, Joseph L.
Compositions
Leather or fur treating
252 8511, 524555, 525279, 525296, C09K 706
Patent
active
047403195
ABSTRACT:
This invention relates to an improved oil-base drilling fluid composition and its use. The improved oil-base drilling fluid composition of this invention is characterized by thixotropic properties which result in a yield point of at least 4.0. The composition includes an oil-base continuous phase and a gelling composition. The gelling composition includes a latex material in combination with one or more functional monomers selected from the group consisting of amides, amines, sulfonates, monocarboxylic acids, dicarboxylic acids and combinations thereof and wherein at least one of the monomers includes a nitrogen containing material.
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Kwok, J. C. and Thompson, R. J., "Characteristics of Styrene-Butadiene Latexes and Their Influence on Beater Addition Process and Products", paper presented at a meeting of the Rubber Division, American Chem. Society, Toronto, CN, 5/10/83, printed in CN, in 4/19/83.
Gray, G. R. et al, Composition and Properties of Oil Well Drilling Fluids, 4th ed., pp. 547-576, Gulf Publishing Co., Houston, TX (Aug. 1981).
Patel Arvind D.
Salandanan Carmelita
Schofer Joseph L.
Teskin F. M.
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