Lubricating oil composition for automatic transmission

Details Lubricating oil composition for automatic transmission Lubricating oil composition for automatic transmission

1997-06-06

1999-10-26

Toomer, Cephia D.

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

Lubricants or separants for moving solid surfaces and...

Organic phosphorus compound, wherein the phosphorus is...

508436, 508438, 508509, 508545, 508551, 508563, C10M13300, C10M13316, C10M13512, C10M13704

Patent

active

059728540

ABSTRACT:
Disclosed is a lubricating oil composition for automatic transmissions, which comprises a base oil and additives of (A) a sulfur-containing antioxidant or an amine-type antioxidant, (B) a phosphate or its amine salt, and (C) a reaction product of a carboxylic acid and an amine. The composition has an excellent ability to prevent the brake lining of the clutch of automatic transmissions from shuddering, and can maintain the shudder-preventing ability for a long period of time.

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patent: 4062785 (1977-12-01), Nibert
patent: 4280916 (1981-07-01), Richards
patent: 4743389 (1988-05-01), Braid et al.
patent: 5064549 (1991-11-01), Dasai
patent: 5536423 (1996-07-01), Miyagawa et al.
patent: 5595964 (1997-01-01), Bardasz

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