Stable high temperature liquid lubricant blends and antioxidant

Details Stable high temperature liquid lubricant blends and antioxidant Stable high temperature liquid lubricant blends and antioxidant

1992-02-03

1993-08-17

Medley, Margaret

Compositions

Electrolytes for electrical devices

252 463, 252 50, 252 52R, 252 498, 252 56R, 252 57, C10M11102

Patent

active

052366103

ABSTRACT:
An antioxidant additive for an engine or propulsion system lubricant subjected to high temperatures which includes a high molecular weight substituted phenolic carboxylic acid tetraester of pentaerythritol. A lubricant blend which is capable of solubilizing the antioxidant additive and includes a polyolester, a phosphate ester and at least one of a polyalphaolefin and an alkylated naphthalene.

REFERENCES:
patent: 4313840 (1982-02-01), Komatsuzaki
patent: 4604491 (1986-08-01), Dressler et al.
patent: 4735146 (1988-04-01), Wallace
patent: 4857220 (1989-08-01), Hashimoto
patent: 4879054 (1989-11-01), Waynick
patent: 5032309 (1991-07-01), Miles
patent: 5136116 (1992-08-01), Ohhazama et al.
CA 113 (6):43704b, Japanese Patent No. 01225697 A2 Sep. 8, 1989 Abstract.

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