C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 169/06 (2006.01) C10M 137/10 (2006.01)
Patent
CA 2271538
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 sulfur and phosphorus containing composition, an overbased metal salt of an organic acid, a hydrocarbyl phosphite, and an aliphatic group substituted carboxylic acid or anhydride thereof, wherein the aliphatic group contains at least about 12 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°C, the phosphorus and sulfur compound being described in detail herein.
Konzman Edward J.
Wiggins Gary W.
Ridout & Maybee Llp
The Lubrizol Corporation
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