Lubricant compositions

Details Lubricant compositions Lubricant compositions

1998-05-19

1999-08-24

McAvoy, Ellen M.

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Organic compound containing boron

508192, 508287, 508433, 508436, 508527, 508569, 252 77, C10M14110, C10M14106

Patent

active

059424702

ABSTRACT:
Gear oils and gear oil additive concentrates of enhanced positraction performance are described. They comprise: (i) at least one oil-soluble sulfur-containing extreme pressure or antiwear agent; (ii) at least one oil-soluble amine salt of a partial ester of an acid of phosphorus; and (iii) at least one oil-soluble succinimide of the formula ##STR1## where R.sub.1 is an alkyl or alkenyl group having an average of 8 to 50 carbon atoms, and each of R.sub.2, R.sub.3 and R.sub.4 is a hydrogen atom or an alkyl or alkenyl group having an average of up to about 4 carbon atoms. These compositions preferably contain one, more preferably two, and most preferably all three of the following additional components: (iv) at least one amine salt of a carboxylic acid; (v) at least one nitrogen-containing ashless dispersant; and (vi) at least one trihydrocarbyl ester of a pentavalent acid of phosphorus.

REFERENCES:
patent: 3254025 (1966-05-01), LeSuer
patent: 5176840 (1993-01-01), Campbell et al.
patent: 5225093 (1993-07-01), Campbell et al.
Smalheer et al, "Lubricant Addititves", Section I-Chemistry of Addivites, pp. 1-11, Jan. 1967.

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