C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 163/00 (2006.01) C10M 135/02 (2006.01) C10M 137/00 (2006.01) C10M 159/00 (2006.01) C23F 11/12 (2006.01) C23F 11/14 (2006.01) C23F 11/16 (2006.01)
Patent
CA 2046931
This invention relates to lubricating compositions comprising : (A) a major amount of an oil of lubricating viscosity; (B) at least one borated overbased Group I or II metal salt of an organic acid; (C) at least one polysulfide-containing organic composi- tion; and (D) at least one phosphorus-containing composition other than a zinc dithiophosphate. Lubricating compositions of the present invention have beneficial viscosity and friction characteristics required by a manual transmission as well as beneficial ex- treme pressure protection required for a gear assembly.
Ridout & Maybee Llp
The Lubrizol Corporation
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