C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
260/134, 253/59
C10M 135/06 (2006.01) B01J 31/02 (2006.01) B21B 45/02 (2006.01) B21C 23/22 (2006.01) B21D 37/18 (2006.01) C08H 3/00 (2006.01) C08K 3/06 (2006.01) C08L 95/00 (2006.01) C10C 3/00 (2006.01) C10M 125/22 (2006.01) C10M 135/02 (2006.01) C10M 135/18 (2006.01) C10M 135/36 (2006.01)
Patent
CA 1259305
Title: SULFUR-CONTAINING COMPOSITIONS, AND ADDITIVE CONCENTRATES, LUBRICATING OILS, AND METAL WORKING LUBRICANTS CONTAINING SANE Abstract of the Disclosure Sulfur-containing compositions are described which are prepared by sulfurizing (A) at least one fatty acid ester of a polyhydric alcohol, or (B) at least one fatty acid, fatty acid ester of a monohydric alcohol, or a mixture thereof, or (C) at least one other olefin, or (D) mixtures of any two or more of (A), (B) and (C), in the presence of a catalytic amount of (E) at least one salt of at least one dithiocarbamic acid of the formula R1(R2)N-CSSH wherein R1 and R2 are each independently hydrocarbyl groups, or (F) at least one mercapto benzothiazole, or (G) mixtures of (E) and (F) Preferably, various mixtures of (A), (B) and (C) are sulfurized in accordance with the invention. The incorporation of a catalytic amount of salt of at least one dithiocarbamic acid of Formula I or at least one mercapto benzothiazole (or mixtures thereof) results in the preparation of sulfurized compositions which are characterized by excellent oil solubility and higher sulfur contents, and the compositions generally are lighter in color when compared to sulfurized compositions prepared in the absence of such catalysts. The sulfurized compositions prepared in accordance with the present invention are useful as general purpose antioxidants and friction modifiers for lubricating compositions and automatic transmission fluids and in particular, as additives in metal working lubricants.
514774
Dibiase Stephen A.
Sowerby Roger L.
Ridout & Maybee Llp
The Lubrizol Corporation
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