Ester compound lubricants

Details Ester compound lubricants Ester compound lubricants

1987-10-22

1988-11-22

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252 56S, 252 56D, 252 57, 560193, 560220, C10M12972

Patent

active

047864273

ABSTRACT:
Use as lubricants, especially for tractive drives, of ester compounds of the general formula I ##STR1## wherein Cb denotes a carboxylic grouping which may be monocarboxylic (MCb) of formula --O--CO--or --CO--O--, dicarboxylic (DiCb) of formula --O--CO--R.sub.4 --CO--O--or --CO--O--R.sub.4 --O--CO--, or tetracarboxylic (TCb) of formula --O--CO--R.sub.5 --CO--O--R.sub.6 --O--CO--R.sub.5 --CO--O--; R.sub.4 represents an optionally substituted alkylene or alkenylene group, a C.sub.5-10 cycloalkylene group, a di-(C.sub.5-10 cycloalkylene) group, or a C.sub.5-10 cycloalkenylene group; R.sub.5 represents an alkylene group and R.sub.6 represents a cycloalkylene group;

REFERENCES:
patent: 2817673 (1957-12-01), Roelen et al.
patent: 2824065 (1958-02-01), Jolly
patent: 2849399 (1958-08-01), Matuszak et al.
patent: 3296065 (1967-01-01), O'Brien et al.
patent: 3835050 (1974-09-01), Green
patent: 4178261 (1979-12-01), Dhein et al.

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