High temperature nonflammable hydraulic fluid

Details High temperature nonflammable hydraulic fluid High temperature nonflammable hydraulic fluid

1992-05-13

1993-05-11

McAvoy, Ellen

Compositions

Electrolytes for electrical devices

252 475, 252 58, 252 781, C10M10550, C10M13510

Patent

active

052098613

ABSTRACT:
A high temperature, nonflammable working fluid consisting essentially of about 0.1 to 5.0 w/o of a rust-/corrosion-inhibitor and about 0.01 to 1.0 w/o of a lubricity additive, balance a chlorotrifluoroethylene oligomer base oil, wherein the lubricity additive is a sulfonamide having the formula C.sub.8 F.sub.17 SO.sub.2 N(C.sub.2 H.sub.5)CH.sub.2 CH.sub.2 O(CH.sub.2 CH.sub.2 O).sub.n H, wherein n has a value of 0 to 15, and wherein the rust inhibitor comprises a blend of zinc dinonylnaphthalene sulfonate and a zinc salt of a high molecular weight succinate ester in a weight ratio of about 99:1 to 20:80.

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