Lubricating oil compositions

Details Lubricating oil compositions Lubricating oil compositions

1971-02-25

1976-03-30

Wyman, Daniel E.

Compositions

Electrolytes for electrical devices

C10M 128, C10M 322, C10M 512, C10M 726

Patent

active

039473686

ABSTRACT:
Lubricating oil compositions having substantially reduced pour points are prepared by incorporating an effective pour depressant amount of an oil-soluble copolymer of ethylene and a vinyl ester of a lower saturated monobasic aliphatic carboxylic acid in a paraffinic, waxy-type, residual lubricating oil base stock. The copolymers, in which the lower saturated monobasic carboxylic component of the ester has from 2 to 6 carbon atoms, have molecular weights of about 16,000 to about 31,000 and which contain about 17 to about 42 weight percent of the vinyl ester, can be added to the lubricating base stock in the form of an emulsion, as a hydrocarbon solution or in any other convenient manner.

REFERENCES:
patent: 3048479 (1962-08-01), Ilnyckyj et al.
patent: 3449251 (1969-06-01), Tunkel et al.
patent: 3462249 (1969-08-01), Tunkel
patent: 3567639 (1971-03-01), Aaron et al.

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