Grease composition

Details Grease composition Grease composition

1989-10-05

1990-05-29

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252 28, 252 29, 252 421, 252 47, C10M12950

Patent

active

049293699

ABSTRACT:
A composition which comprises (a) a salt of monovalent metal (M) of a carboxylic acid in which the COOH group is attached to a ring atom of a fused ring system and (b) a grease which is a non-soap thickened oil which may be a mineral oil or a synthetic oil such as a silicone oil. The metal (M) may be sodium. The fused ring system is preferably a fused aromatic hydrocarbon ring system such as naphthalene and may include further substituents, for example an -OH group, in addition to the COOH group. If the acid contains both OH and COOH groups, these can be attached to adjacent atoms of the fused ring system. Sodium 2-naphthoate and sodium 3-hydroxy-2-naphthoate have been found to be particularly suitable. The grease has improved corrosion resistance and the addition of the metal compound does not result in destructing of the grease.

REFERENCES:
patent: 2197832 (1940-04-01), Reiff
patent: 2223129 (1940-11-01), Prutton
patent: 2330239 (1943-09-01), Prutton
patent: 3870643 (1975-02-01), Kerschner et al.
patent: 4307027 (1981-12-01), Borzelli et al.
patent: 4765917 (1988-08-01), Otaki et al.

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