JPS57135897A - Method for stabilizing ester oil-containing oil - Google Patents
Method for stabilizing ester oil-containing oilInfo
- Publication number
- JPS57135897A JPS57135897A JP2023381A JP2023381A JPS57135897A JP S57135897 A JPS57135897 A JP S57135897A JP 2023381 A JP2023381 A JP 2023381A JP 2023381 A JP2023381 A JP 2023381A JP S57135897 A JPS57135897 A JP S57135897A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- ester oil
- zinc dithiophosphate
- ester
- cyclohexane
- 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
Landscapes
- Lubricants (AREA)
Abstract
PURPOSE:To improve the heat resistance and oxidation stability of an ester oil-containing oil, by the addition of zinc dithiophosphate and 1,1-bis(4-hydoxyphenyl)-cyclohexane. CONSTITUTION:At least about 0.5wt% of each of a zinc dithiophosphate (A) represented by formulaI, where R<1> and R<2> are alkyl or aryl (e.g., zinc dithiophosphate where R<1> and R<2> are n-butyl, n-hexyl, butylphenyl or nonylphneyl) and 1,1-bis(4-hydroxyphenyl) cyclohexane (B) represented by formula II is added to an oil containing an ester oil (e.g., a monoester formed from a primary alcohol and a monobasis acid or a polyolester formed from a polyhydric alcohol and a monobasic acid), thereby improving markedly the heat resistance and oxidation stability of the oil containing an ester oil. It is possible to extend substantially the life of the oil containing an ester oil and also to prevent a combustion or an explosion accident due to deterioration of the oil by the above- mentioned method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2023381A JPS57135897A (en) | 1981-02-16 | 1981-02-16 | Method for stabilizing ester oil-containing oil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2023381A JPS57135897A (en) | 1981-02-16 | 1981-02-16 | Method for stabilizing ester oil-containing oil |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57135897A true JPS57135897A (en) | 1982-08-21 |
JPH0114279B2 JPH0114279B2 (en) | 1989-03-10 |
Family
ID=12021457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2023381A Granted JPS57135897A (en) | 1981-02-16 | 1981-02-16 | Method for stabilizing ester oil-containing oil |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57135897A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000039256A1 (en) * | 1998-12-25 | 2000-07-06 | Idemitsu Kosan Co., Ltd. | Lubricating oil composition for high-temperature use |
JP2009040954A (en) * | 2007-08-10 | 2009-02-26 | Daido Chem Ind Co Ltd | Lubricant composition for warm working of magnesium and magnesium alloy |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52119608A (en) * | 1976-04-01 | 1977-10-07 | Hitachi Ltd | Lubricant grease |
-
1981
- 1981-02-16 JP JP2023381A patent/JPS57135897A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52119608A (en) * | 1976-04-01 | 1977-10-07 | Hitachi Ltd | Lubricant grease |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000039256A1 (en) * | 1998-12-25 | 2000-07-06 | Idemitsu Kosan Co., Ltd. | Lubricating oil composition for high-temperature use |
US6465400B1 (en) | 1998-12-25 | 2002-10-15 | Idemitsu Kosan Co., Ltd. | Lubricating oil composition for high-temperature use |
USRE39382E1 (en) * | 1998-12-25 | 2006-11-07 | Idemitsu Kosan Co., Ltd. | Lubricating oil composition for high-temperature use |
JP2009040954A (en) * | 2007-08-10 | 2009-02-26 | Daido Chem Ind Co Ltd | Lubricant composition for warm working of magnesium and magnesium alloy |
Also Published As
Publication number | Publication date |
---|---|
JPH0114279B2 (en) | 1989-03-10 |
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