JPS5634794A - Lubricating oil composition - Google Patents
Lubricating oil compositionInfo
- Publication number
- JPS5634794A JPS5634794A JP10971179A JP10971179A JPS5634794A JP S5634794 A JPS5634794 A JP S5634794A JP 10971179 A JP10971179 A JP 10971179A JP 10971179 A JP10971179 A JP 10971179A JP S5634794 A JPS5634794 A JP S5634794A
- Authority
- JP
- Japan
- Prior art keywords
- lubricating oil
- copolymer
- oil composition
- nitrogen atom
- prepared
- 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.)
- Pending
Links
Landscapes
- Lubricants (AREA)
Abstract
PURPOSE: A novel lubricating oil composition, capable of stabilizing the viscosity-temperature relationship, having improved detergency and dispersibility, and prepared by adding a graft copolymer of an oxidation degraded ethylene-propylene copolymer with a monomer containing a nitrogen atom to a lubricating oil.
CONSTITUTION: (B) A monomer containing a nitrogen atom, preferably 2-vinylpyridine, is grafted onto (A) a copolymer, which is prepared by the oxidation degradation of an ethylene-propylene copolymer having a weight-average molecular weight of 25,000W600,000 and a propylene content of 25W50mol% in the presence of a gas containing oxygen, preferably in an inert organic solvent, at 50W230°C, at 50W150°C for 30minW10hr. The amount of the component (B) is preferably 5W 50pts.wt. per 100pts.wt. the component (A). The copolymer (A) preferably has a molecular weight reduced by 10%. Preferably, 0.5W5pts.wt., more preferably 1W3pts.wt. the graft copolymer thus obtained is added to 100pts.wt. a lubricating oil to give the object lubricating oil composition.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10971179A JPS5634794A (en) | 1979-08-30 | 1979-08-30 | Lubricating oil composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10971179A JPS5634794A (en) | 1979-08-30 | 1979-08-30 | Lubricating oil composition |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5634794A true JPS5634794A (en) | 1981-04-07 |
Family
ID=14517272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10971179A Pending JPS5634794A (en) | 1979-08-30 | 1979-08-30 | Lubricating oil composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5634794A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02242086A (en) * | 1989-03-15 | 1990-09-26 | Natl Inst For Res In Inorg Mater | Multi-stage reflection type electric furnace |
JPH0432878B2 (en) * | 1984-05-24 | 1992-06-01 | Nippon Oil Co Ltd |
-
1979
- 1979-08-30 JP JP10971179A patent/JPS5634794A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0432878B2 (en) * | 1984-05-24 | 1992-06-01 | Nippon Oil Co Ltd | |
JPH02242086A (en) * | 1989-03-15 | 1990-09-26 | Natl Inst For Res In Inorg Mater | Multi-stage reflection type electric furnace |
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