Lubricating oil additive composition having a high friction...

Details Lubricating oil additive composition having a high friction... Lubricating oil additive composition having a high friction...

C - Chemistry, Metallurgy

10

M

C10M 149/10 (2006.01) C10M 133/56 (2006.01) C10M 141/06 (2006.01)

Patent

CA 2280238

The present invention provides a lubricating oil additive composition containing a salt of an ashless dispersant and an aromatic carboxylic acid having from about 1 to 4 carboxylic groups when employed as lubricant additives provides a high friction coefficient at elevated temperatures. The lubricating oil composition containing the present additive composition is especially useful in hydraulic oils and automatic transmission oils.

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