Synthetic lubricants

Details Synthetic lubricants Synthetic lubricants

1988-12-06

1990-02-06

Dixon, Jr., William R.

Compositions

Electrolytes for electrical devices

252 50, 252 58, 558 80, C10M13716

Patent

active

048986836

ABSTRACT:
Synthetic lubricants of the formula: ##STR1## wherein, n is from 3 to 10; X and X' are NH or NH.sub.2, with the proviso that X and X' are not both NH.sub.2 ; Rf and Rf' are Y(C.sub.3 F.sub.6 O).sub.l CFZCO, Y(C.sub.3 F.sub.6 O).sub.l (CF.sub.2 O).sub.m CFZCO, Y(C.sub.2 F.sub.4 O).sub.l (CF.sub.2 O).sub.m CFZO, Y(CF.sub.2).sub.l-1 CO, Y(CF.sub.2).sub.l- CH.sub.2 CO, and Y(CF.sub.2).sub.l-1 CH.sub.2 CH.sub.2 CO, wherein l>m, l is an integer from 3 to 150, m is an integer from 1 to 50, Y is H--, F--, CF.sub.3 --, C.sub.2 F.sub.5 --, C.sub.3 F.sub.7 --, CF.sub.3 O--, C.sub.2 F.sub.5 O--, or C.sub.3 F.sub.7 O--, and Z is F--, CF.sub.3 --, or C.sub.2 F.sub.5 --. The synthetic lubricants have enhanced adsorption on metals, graphite, amorphous carbon, and other inorganic materials, have improved corrosion protection and load resistance properties, a favorable lubricating behavior, and low combustibility.

REFERENCES:
patent: 2586312 (1948-02-01), Dishon
patent: 2876247 (1959-03-01), Ratz
patent: 3206494 (1965-09-01), Lund
patent: 3888800 (1975-06-01), Allock
patent: 3891448 (1975-06-01), Braxton
patent: 3894876 (1975-07-01), Wolf
patent: 4192830 (1980-03-01), Wolf

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