Polyester lubricant additives, their preparation and composition

Details Polyester lubricant additives, their preparation and composition Polyester lubricant additives, their preparation and composition

1974-09-17

1978-01-24

Gallagher, R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

26032645, 252 515R, 252 515A, 548348, C07D40312

Patent

active

040703703

ABSTRACT:
Polyesters suitable for use as lubricant additives are prepared by reacting a di-carboxylic acid or anhydride having a branched chain alkyl or alkenyl substituent containing at least 30 carbon atoms with a compound having the formula: ##STR1## wherein R and R.sup.1 are specified substituents which between them possess from 2 to 6 free hydroxyl groups. Lubricating compositions containing these polyester additives are also described.

REFERENCES:
patent: 2908711 (1959-10-01), Halter
patent: 2977309 (1961-03-01), Godfrey
patent: 3218260 (1965-11-01), Katz
patent: 3224968 (1965-12-01), Hinkamp
patent: 3224975 (1965-12-01), Hinkamp
patent: 3255112 (1966-06-01), Hoffman
Paytash et al., J. Amer. Chem. Soc. 72, 1415 (1950).
Zilkha et al., J. Org. Chem. 28, 376 (1961).
Fieser et al., Organic Chem., 2nd Ed., p. 176.

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