C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
253/92
C10M 135/02 (2006.01) C10M 135/00 (2006.01) C10M 135/18 (2006.01) C10M 141/10 (2006.01)
Patent
CA 1282773
L-2212R Title: SULFUR-CONTAINING COMPOSITIONS, AND ADDITIVE CONCENTRATES AND LUBRICATING OILS CONTAINING SAME ABSTRACT OF THE DISCLOSURE Sulfur-containing, oil-soluble compositions are described which are useful as lubricating oil additives particularly in lubricants containing little or no phosphorus. In one embodiment, the compositions of the invention comprise (A) at least one metal salt of at least one dithiocarbamic acid of the formula R1(R2)N-CSSH (I) wherein R1 and R2 are each independently hydrocarbyl groups in which the total number of carbon atoms in R1 and R2 is sufficient to render the metal salt oil-soluble, (B) at least one oil-soluble sulfurized organic compound, and (C) at least one auxiliary corrosion-inhibitor. In other embodiments, the compositions also contain (D) at least one detergent/dispersant. Lubricating oil compositions containing the compositions of the invention exhibit improved oxidation-corrosion-inhibiting properties, anti-wear properties, and/or extreme pressure properties. Such lubricating compositions containing less than about 0.1% by weight of phosphorus also exhibit good compatability with nitrile seals.
499781
Davis Kirk Emerson
Di Biase Stephen A.
Tagliamonte Thomas A.
Davis Kirk Emerson
Di Biase Stephen A.
Ridout & Maybee Llp
Tagliamonte Thomas A.
The Lubrizol Corporation
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