C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 105/40 (2006.01) C10M 105/22 (2006.01) C10M 105/34 (2006.01) C10M 105/38 (2006.01) C10M 105/42 (2006.01)
Patent
CA 2442005
This invention generally relates to a high temperature stable polyol ester lubricant composition containing short chain carboxylic esters and a process for making the same. The polyol ester lubricant compositions are preferably formed from pentaerythritol and a mixture of C2 to C10 carboxylic acids in which (1) from 95 to 80 mole%, based on total acids, are C5 to C10 carboxylic acid, and (2) from 5 to 20 mole%, based on total acids, are at least one C2 to C4 carboxylic acid The polyol ester lubricant compositions of the present invention, specifically those using at least one C2 to C4 carboxylic acid, are useful as base stock for high temperature application such as Aviation Turbine Oils and exhibit enhanced anti-deposition and oxidation stability compared with the base polyol ester compositions while maintaining a good viscosity index.
Aldrich Haven S.
Godici Patrick E.
Kim Jeenok T.
Krevalis Martin A.
Pafford Bernie J.
Bp Corporation North America Inc.
Gowling Lafleur Henderson Llp
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