Compositions – Etching or brightening compositions
Patent
1975-06-16
1976-07-20
Pitlick, Harris A.
Compositions
Etching or brightening compositions
C10M 320, C09K 300
Patent
active
039705749
ABSTRACT:
A random equilibrium mixture of triethylene glycol diesters of acetic and propionic acids, wherein the molar ratio of acetyl to propionyl groups in the mixed ester composition is from about 40:60 to 50:50, is useful as a hydraulic brake fluid. The composition shows no increase in low temperature (-40.degree.C.) viscosity in the presence of up to 6% by weight of water.
REFERENCES:
patent: 3003968 (1961-10-01), Bruce et al.
patent: 3825497 (1974-07-01), Ker
E. I. Du Pont de Nemours & Co.
Pitlick Harris A.
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