ES2012722A6 - Lubricating oil composition for internal combustion engines - Google Patents

Lubricating oil composition for internal combustion engines

Info

Publication number
ES2012722A6
ES2012722A6 ES8901792A ES8901792A ES2012722A6 ES 2012722 A6 ES2012722 A6 ES 2012722A6 ES 8901792 A ES8901792 A ES 8901792A ES 8901792 A ES8901792 A ES 8901792A ES 2012722 A6 ES2012722 A6 ES 2012722A6
Authority
ES
Spain
Prior art keywords
internal combustion
combustion engines
lubricating oil
weight approximately
oil composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
ES8901792A
Other languages
Spanish (es)
Inventor
Kirl Emerson Davis
Calvin William Schroeck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lubrizol Corp
Original Assignee
Lubrizol Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/202,795 external-priority patent/US4952328A/en
Application filed by Lubrizol Corp filed Critical Lubrizol Corp
Publication of ES2012722A6 publication Critical patent/ES2012722A6/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Lubricants (AREA)

Abstract

Lubricating oil composition for internal combustion engines. Comprises: (A) at least 60% by weight approximately of a lubricating viscosity oil, (B) at least 2.0% by weight approximately of at least one carboxylic derived composition produced by the reaction of (B-1) at least one substituted succinic acylating agent which has at least 1.3 succinic groups per equivalent weight of substitutent group in its structure, with (B-2) at least one amine compound which has at least one =NH group in its structure and (C) 0.01-2% by weight approximately of at least one basic alkali metal salt of a sulphonic or carboxylic acid, and optionally (D) at least one metal dihydrocarbyl dithiophosphate and/or (E) at least one composition derived from carboxylic acid and/or (F) at least one partial ester of a fatty acid with a polyhydric alcohol. Useful for reducing wear in the lubricated parts of the said engines.
ES8901792A 1988-06-03 1989-05-26 Lubricating oil composition for internal combustion engines Expired - Fee Related ES2012722A6 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/202,795 US4952328A (en) 1988-05-27 1988-06-03 Lubricating oil compositions

Publications (1)

Publication Number Publication Date
ES2012722A6 true ES2012722A6 (en) 1990-04-01

Family

ID=22751304

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8901792A Expired - Fee Related ES2012722A6 (en) 1988-06-03 1989-05-26 Lubricating oil composition for internal combustion engines

Country Status (4)

Country Link
AR (1) AR246304A1 (en)
BR (1) BR8902900A (en)
ES (1) ES2012722A6 (en)
IN (1) IN175024B (en)

Also Published As

Publication number Publication date
IN175024B (en) 1995-04-22
AR246304A1 (en) 1994-07-29
BR8902900A (en) 1990-09-18

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20040503