Compositions – Leather or fur treating
Patent
1984-01-12
1986-04-08
Schofer, Joseph L.
Compositions
Leather or fur treating
5253267, 5253275, 5253276, 5253296, 526262, 526287, C09K 700
Patent
active
045811474
ABSTRACT:
The present invention provides a dispersant for water-based, solids-containing fluids comprising a copolymer of a sulfonated styrene monomer and a second monomer selected from the group consisting of maleic anhydride, maleimide, and dimethyl maleate, wherein the copolymer contains an amide formed on the second monomer. The amide can be formed on the second monomer by a reaction using a nitrogen source selected from the group consisting of ammonia, primary amines, and secondary amines. The dispersant can be used to form a water based drilling fluid. The present invention also provides a process of producing the dispersant.
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Lipman Bernard
Schofer Joseph L.
Sun Drilling Products Corp.
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