Compositions – Leather or fur treating
Patent
1974-09-03
1976-05-25
Guynn, Herbert B.
Compositions
Leather or fur treating
21 25R, 21 27R, 252391, C23F 1116, C23F 1104
Patent
active
039591581
ABSTRACT:
Compositions and methods for the protection of steel and metal well equipment used in high temperature oil and gas wells above 250.degree.F and more particularly in the range of about 300.degree.-550.degree.F for bottom hole temperatures. The basic composition is a trimer acid salt of a primary mono-amine and particularly useful is a primary amine such as a primary tallow amine having C.sub.9 -C.sub.24 carbon length. Other ingredients include a sulfonate, particularly an alkaryl sulfonate, as well as a mixture of dispersing agents or solvents specially utilizing a combination of a lower alkanol and a highly aromatic solvent as make up. Optionally there may be included a minor amount of a water-in-oil demulsifier. The reaction of the trimer acid with the mono-amine affords less opportunity for any further deleterious reaction or polymerization than as previous formulations utilizing polyamines with dimer acids and the like.
REFERENCES:
patent: 2839465 (1958-06-01), Jones
patent: 3003955 (1961-10-01), Jones
patent: 3412024 (1968-11-01), Stanford
patent: 3712862 (1973-01-01), Bundrant et al.
Encyclopedia of Chemical Technology, Second Edition, Vol. 8, 1965, pp. 847 and 848.
Chappell George D.
Stanford James R.
Guynn Herbert B.
Nalco Chemical Company
Premo John G.
Roberts John S.
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