Grease compositions

Details Grease compositions Grease compositions

1999-03-01

2000-05-16

Howard, Jacqueline V.

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

Lubricants or separants for moving solid surfaces and...

Heavy metal or aluminum in an organic phosphorus compound...

508398, 508399, 508423, 508429, 508434, 508435, 508437, 508440, 508442, C10M14110

Patent

active

060637420

ABSTRACT:
Improved grease compositions comprise a major amount of an oil based metal soap thickened base grease selected from the group consisting of simple metal soap thickened base grease, complex grease and failed complex grease, at least one metal salt of a sulfur and phosphorus containing acid, an overbased metal salt of an organic acid, a hydrocarbyl phosphite, and optionally, an aliphatic group substituted carboxylic acid, anhydride thereof and aliphatic group substituted lactone, wherein the aliphatic group contains at least about 8 carbon atoms in amounts sufficient to increase the dropping point of the base grease, as measured by ASTM Procedure D-2265 by at least 15.degree. C.

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