Compositions – Electrolytes for electrical devices
Patent
1994-09-26
1996-01-16
Johnson, Jerry D.
Compositions
Electrolytes for electrical devices
252 33, C10M15920, C10M15924
Patent
active
054845424
ABSTRACT:
This invention relates to a composition comprising at least one sulfurized overbased product made by contacting (A) at least one overbased product or (A') at least one boron-containing overbased product with (B) sulfur and/or at least one source of sulfur; said overbased product (A) or boron-containing overbased product (A') being made using at least one acidic material, with the proviso that when said acidic material is other than SO.sub.2 or a source of SO.sub.2 said overbased product (A) or boron-containing overbased product (A') is contacted with an effective amount of SO.sub.2 or a source of SO.sub.2 to displace at least part of said acidic material. In one embodiment the sulfurized overbased product is an overbased thiosulfate or a boron-containing overbased thiosulfate. In one embodiment, the sulfurized overbased product is made using the overbased product (A) and the composition further comprises at least one non-sulfurized boron-containing overbased product. The sulfurized overbased products are thermally stable and are useful as extreme pressure (EP) and/or anti-wear agents or antioxidants for use in lubricants, functional fluids and normally liquid fuels. The functional fluids can be oil-based, water-oil emulsions or water-based. The sulfurized overbased products are particularly suitable for use as EP and/or anti-wear agents for use in gear lubricants and cutting fluids. In one embodiment lubricating compositions are provided that pass both the L-37 High Torque Test and the L-42 High Speed Shock Test without the necessity of employing phosphorus and sulfurized olefin anti-wear systems in their formulation.
REFERENCES:
patent: 2623016 (1952-12-01), Mertes
patent: 2695910 (1954-11-01), Asseff et al.
patent: 3057896 (1962-10-01), Schlicht et al.
patent: 3453212 (1969-07-01), Dorer
patent: 3488284 (1970-01-01), LeSuer et al.
patent: 3492231 (1970-01-01), McMillen
patent: 3515669 (1970-06-01), LeSuer
patent: 3629109 (1971-12-01), Gergel et al.
patent: 3766066 (1973-10-01), McMiller
patent: 3940341 (1976-02-01), Gray et al.
patent: 4171269 (1979-10-01), Sung et al.
patent: 4200545 (1980-04-01), Clason et al.
patent: 4230586 (1980-10-01), Bretz et al.
patent: 4234435 (1980-11-01), Meinhardt et al.
patent: 4446039 (1984-05-01), Pindar et al.
patent: 4468339 (1984-08-01), Rysek et al.
patent: 4507215 (1985-03-01), Schraeck
patent: 4526950 (1985-07-01), Grava
patent: 4579666 (1986-04-01), Schraeck
patent: 4582543 (1986-04-01), Bretz
patent: 4751010 (1988-06-01), Leone et al.
patent: 4755311 (1988-07-01), Burjes et al.
patent: 4804489 (1989-02-01), Munson et al.
patent: 5064545 (1991-11-01), Steckel
patent: 5080812 (1992-01-01), Parc et al.
patent: 5250204 (1993-10-01), Karn et al.
Smalheer and Smith, "Lubricant Additives", pp. 1-11, 1967.
European Search Report EP 93 30 6992, Apr. 12, 1994.
Cahoon John M.
Huang Nai Z.
Karn Jack L.
Roski James P.
Connors William J.
Engelmann John H.
Hunter Frederick D.
Johnson Jerry D.
The Lubrizol Corporation
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