Polyester lubricant additives, their preparation and composition

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

1977-11-23

1978-11-28

Gantz, Delbert E.

Compositions

Electrolytes for electrical devices

252 515R, C10M 132

Patent

active

041274938

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: 3479327 (1969-11-01), Merijan et al.
patent: 4049564 (1977-09-01), Ryer et al.
patent: 4070370 (1978-01-01), Elliott et al.

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