Compositions – Electrolytes for electrical devices
Patent
1988-06-03
1990-08-28
Howard, Jacqueline V.
Compositions
Electrolytes for electrical devices
252 334, 252 39, 252 40, 252 515A, 252 56R, C10M14102
Patent
active
049523287
ABSTRACT:
A lubricating oil formulation is described which is useful in internal combustion engines. More particularly, lubricating oil compositions for internal combustion engines are described with comprises (A) at least about 60% by weight of oil of lubricating viscosity, (B) at least about 2.0% by weight of at least one carboxylic derivative composition produced by reacting (B-1) at least one substituted succinic acylating agent with (B-2) from about 0.70 equivalent up to less than one equivalent, per equivalent of acylating agent, of at least one amine compound characterized by the presence within its structure of at least one HN< group, and wherein said substituted succinic acylating agent consists of substituent groups and succinic groups wherein the substituent groups are derived from a polyalkene, said polyalkene being characterized by an Mn value of abotu 1300 to about 5000 and an Mw/Mn value of about 1.5 to about 4.5, said acylating agents being characterized by the presence within their structure of an average of at least 1.3 succinic groups for each equivalent weight of substituent groups, and (C) from about 0.01 to about 2% by weight of at least one basic alkali metal salt of sulfonic or carboxylic acid. The oil compositions of the invention also may contain (D) at least one metal dihydrocarbyl dithiophosphate and/or (E) at least one carboxylic ester derivative composition, and/or (F) at least one partial fatty acid ester of a polyhydric alcohol, and/or (G) at least one neutral or basic alkaline earth metal salt of at least one acidic organic compound. In one embodiment, the oil compositions of the present invention contain the above additives and other additives described in this specification in amounts sufficient to enable the oil to meet all the performance requirements of the new API Service Classification identified as SG.
REFERENCES:
patent: Re26330 (1968-01-01), Colfer
patent: Re27331 (1972-04-01), Coleman
patent: 2174110 (1939-09-01), Reed
patent: 2202781 (1940-05-01), Kennedy
patent: 2239974 (1941-04-01), Reed
patent: 2319121 (1943-05-01), Fox
patent: 2337552 (1943-12-01), Henke
patent: 2875221 (1959-02-01), Birnbaum
patent: 2911367 (1959-11-01), Baus et al.
patent: 2971940 (1961-02-01), Fuchsman et al.
patent: 3172892 (1965-03-01), LeSuer et al.
patent: 3215707 (1965-11-01), Rense
patent: 3219666 (1965-11-01), Norman et al.
patent: 3231587 (1966-01-01), Rense
patent: 3235484 (1966-02-01), Colfer
patent: 3235498 (1966-02-01), Waldmann
patent: 3272746 (1966-09-01), Le Suer et al.
patent: 3372116 (1968-03-01), Meinhardt
patent: 3385791 (1968-05-01), Colyer et al.
patent: 3410798 (1968-11-01), Cohen
patent: 3488284 (1970-02-01), Le Suer et al.
patent: 3522179 (1970-07-01), Le Suer
patent: 3562159 (1971-02-01), Mastin
patent: 3576743 (1971-04-01), Widmer et al.
patent: 3595790 (1971-07-01), Norman et al.
patent: 3632510 (1972-01-01), Le Suer
patent: 3798012 (1974-03-01), LeSuer
patent: 3804763 (1974-04-01), Meinhardt
patent: 3912764 (1975-10-01), Palmer, Jr.
patent: 3920562 (1975-11-01), Foehr
patent: 3933659 (1976-01-01), Lyle et al.
patent: 3948800 (1976-04-01), Meinhardt
patent: 3957854 (1976-05-01), Miller
patent: 4010106 (1977-03-01), Rothert
patent: 4105571 (1978-08-01), Shaub et al.
patent: 4110349 (1978-08-01), Cohen
patent: 4113639 (1978-09-01), Lonstrup et al.
patent: 4119549 (1978-10-01), Davis
patent: 4234435 (1980-11-01), Meinhardt et al.
patent: 4263150 (1981-04-01), Clason et al.
patent: 4289635 (1981-09-01), Schroeck
patent: 4304678 (1981-12-01), Schick et al.
patent: 4308154 (1981-12-01), Clason et al.
patent: 4309293 (1982-01-01), Braid
patent: 4326972 (1982-04-01), Chamberlin, III
patent: 4417990 (1983-11-01), Clason et al.
patent: 4455243 (1984-06-01), Liston
patent: 4466895 (1984-08-01), Schroeck
patent: 4505830 (1985-03-01), Vinci
patent: 4683069 (1987-07-01), Brewster et al.
Ripple, David E., Diesel Lubricants and Methods, Mar. 26, 1987, WO 87/01722.
Exxon, Chemical Patents Inc. Oil-Soluble Dispersant Additives for Fuels and Lubricating Oils, 7/11/85.
Davis Kirk E.
Schroeck Calvin W.
Fischer Joseph P.
Franks Robert A.
Howard Jacqueline V.
Hunter Frederick D.
The Lubrizol Corporation
LandOfFree
Lubricating oil compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lubricating oil compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lubricating oil compositions will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1588301