JPS5566995A - Lubricant oil composition and its preparation - Google Patents
Lubricant oil composition and its preparationInfo
- Publication number
- JPS5566995A JPS5566995A JP13936278A JP13936278A JPS5566995A JP S5566995 A JPS5566995 A JP S5566995A JP 13936278 A JP13936278 A JP 13936278A JP 13936278 A JP13936278 A JP 13936278A JP S5566995 A JPS5566995 A JP S5566995A
- Authority
- JP
- Japan
- Prior art keywords
- lubricant oil
- oil
- olefin
- soluble polymer
- alkyl ester
- 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.)
- Granted
Links
Abstract
PURPOSE: An oil-soluble polymer of α-olefin is dissolved in a lubricant oil and an unsaturated monocarboxylic alkyl ester is made to react with them to produce said lubricant oil composition with high viscosity index and detergent dispersity.
CONSTITUTION: An oil-soluble polymer of α-olefin is dissolved in a lubricant oil and an unsaturated monocarboxylic alkyl ester is made to act on them under conditions where the homopolymer of the alkyl ester does not form. Then, the product is diluted with the lubricant oil to give the objective lubricant oil composition. The oil-soluble polymer of α-olefin is preferably an amorphous rubber that has 5,000 or higher molecular weight, 0.1W500 melt index at 190°C, no thermal-sbsorbing peak in the scanning type differential thermal analysis and 0% crystallinity in X-ray diffraction.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53139362A JPS5940194B2 (en) | 1978-11-14 | 1978-11-14 | Lubricating oil composition and its manufacturing method |
PCT/JP1979/000289 WO1980000976A1 (en) | 1978-11-14 | 1979-11-13 | Lubricating oil composition and process for producing same |
EP79901541A EP0022871B2 (en) | 1978-11-14 | 1979-11-13 | Lubricating oil composition and process for producing same |
DE7979901541T DE2966681D1 (en) | 1978-11-14 | 1979-11-13 | Lubricating oil composition and process for producing same |
US06/196,913 US4388202A (en) | 1978-11-14 | 1979-11-13 | Lubricating oil composition and process for preparation thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53139362A JPS5940194B2 (en) | 1978-11-14 | 1978-11-14 | Lubricating oil composition and its manufacturing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5566995A true JPS5566995A (en) | 1980-05-20 |
JPS5940194B2 JPS5940194B2 (en) | 1984-09-28 |
Family
ID=15243554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53139362A Expired JPS5940194B2 (en) | 1978-11-14 | 1978-11-14 | Lubricating oil composition and its manufacturing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5940194B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02242894A (en) * | 1989-03-06 | 1990-09-27 | Mitsui Petrochem Ind Ltd | Lubricating oil composition and lubricating oil additive |
JP2020094140A (en) * | 2018-12-13 | 2020-06-18 | 三井化学株式会社 | Viscosity index improver for lubricant oil, and lubricant oil composition |
JP2020122119A (en) * | 2019-01-31 | 2020-08-13 | 三井化学株式会社 | Viscosity index improver for lubricant and lubricant composition |
-
1978
- 1978-11-14 JP JP53139362A patent/JPS5940194B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02242894A (en) * | 1989-03-06 | 1990-09-27 | Mitsui Petrochem Ind Ltd | Lubricating oil composition and lubricating oil additive |
JP2020094140A (en) * | 2018-12-13 | 2020-06-18 | 三井化学株式会社 | Viscosity index improver for lubricant oil, and lubricant oil composition |
JP2020122119A (en) * | 2019-01-31 | 2020-08-13 | 三井化学株式会社 | Viscosity index improver for lubricant and lubricant composition |
Also Published As
Publication number | Publication date |
---|---|
JPS5940194B2 (en) | 1984-09-28 |
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