Dithiophosphoric acid derivatives as lubricant additives

Details Dithiophosphoric acid derivatives as lubricant additives Dithiophosphoric acid derivatives as lubricant additives

1993-05-27

1994-11-08

McAvoy, Ellen M.

Compositions

Electrolytes for electrical devices

558179, C10M13710

Patent

active

053624190

ABSTRACT:
There are disclosed compounds of formula I ##STR1## R.sub.1 and R.sub.2 are each independently of the other C.sub.3 -C.sub.18 alkyl, C.sub.5 -C.sub.12 cycloalkyl, C.sub.5 -C.sub.6 cycloalkylmethyl, C.sub.9 -C.sub.10 bicycloalkylmethyl, C.sub.9 -C.sub.10 tricycloalkylmethyl, phenyl, C.sub.7 -C.sub.6 alkylphenyl or, taken together, are ##STR2## R.sub.3 is hydrogen or methyl, A is ##STR3## R.sub.4 is hydrogen or C.sub.1 -C.sub.6 alkyl, and R.sub.5 is a 5- or 6-membered saturated heterocyclic ring,
R.sub.6 is hydrogen or methyl,
n is an integer from 1 to 11 and m is an integer from 0 to 4.
These compounds are particularly suitable for use as additives for lubricant compositions, hydraulic fluids and machining fluids.

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