Graphite-containing lubricant composition

Details Graphite-containing lubricant composition Graphite-containing lubricant composition

1989-10-10

1991-09-17

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252 29, C10M12502

Patent

active

050492896

ABSTRACT:
A lubricant composition for use in threaded tube and pipe connections comprises from 10 to 70% by weight of pure, crystalline, graphite and from 0.1% to 10% by weight (calculated of graphite) of a special additive in the form of strongly polarizable or ionizable organic compounds like e.g. amines, amine salts, metal-amine complexes, combinations of amines with polymers, polymeric amines, ammonium compounds, alkylsulphates, organic phosphates, phosphonates and sulphonates. The balance is formed by a supporting vehicle such as an oil or grease. In this composition, the performance characteristics of the graphite have been improved by the special edditive such that it can be used for lubricating and sealing threaded tube and pipe connections under conditions of extreme pressure.

REFERENCES:
patent: 300024 (1884-06-01), Smalles
patent: 1304477 (1919-05-01), Guas
patent: 1395073 (1921-10-01), Willes
patent: 2176879 (1939-10-01), Bartell
patent: 3089849 (1963-05-01), Linson
patent: 4372861 (1983-02-01), Chao
patent: 4713186 (1987-12-01), Kristen et al.

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