Compositions – Leather or fur treating
Patent
1986-02-06
1987-12-08
Guynn, Herbert B.
Compositions
Leather or fur treating
252 851, 5263171, C09K 702
Patent
active
047117311
ABSTRACT:
An aqueous drilling fluid having present in an amount sufficient to disperse the fluid and to provide resistance to high temperatures and solids contamination of the drilling fluid, at least one salt of a polymer or copolymer of acrylic or methacrylic acid with alkanolamine, alkylamine, mixtures of alkanolamine and alkylamine, mixtures of lithium and alkanolamine, mixtures of lithium and alkylamine and mixtures of lithium, alkanolamine and alkylamine, the polymer having a weight average molecular weight of between about 2,000 and about 15,000 and a pH of from about 6 to about 8.5 and where mixtures of lithium and alkanolamine, lithium and alkylamine or mixtures of lithium, alkanolamine and alkylamine are used, the amount of lithium is present to give from about 30% to about 70% of the desired neutralization of the polymer and the alkanolamine and/or alkylamine is present to give from about 70% to about 30% of the desired neutralization of the polymer.
REFERENCES:
patent: 2552775 (1951-05-01), Fischer et al.
patent: 2603598 (1952-07-01), Meadors
patent: 2718497 (1955-09-01), Oldham et al.
patent: 4370171 (1983-01-01), Robinson et al.
patent: 4507422 (1985-03-01), Farrar et al.
patent: 4554307 (1985-11-01), Farrar et al.
U. D. Mamadzhanov et al in Tr. VNII Ekon., Organiz. Proiz-Va Tekhn.-Ekon. Inform. V Gaz. Prom-Sti, (1974), pp. 114-117.
Garvey Christopher M.
Savoly Arpad
Weatherford Thomas M.
Diamond Shamrock Chemicals Company
Guynn Herbert B.
Levin Neal T.
Szoke Ernest G.
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