JPS57135897A - Method for stabilizing ester oil-containing oil - Google Patents

Method for stabilizing ester oil-containing oil

Info

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
Application number
JP2023381A
Other languages
Japanese (ja)
Other versions
JPH0114279B2 (en
Inventor
Takashi Iwama
Yoshihito Kadoma
Tsuneo Kimura
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.)
NOF Corp
Original Assignee
NOF Corp
Nippon Oil and Fats Co Ltd
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
Application filed by NOF Corp, Nippon Oil and Fats Co Ltd filed Critical NOF Corp
Priority to JP2023381A priority Critical patent/JPS57135897A/en
Publication of JPS57135897A publication Critical patent/JPS57135897A/en
Publication of JPH0114279B2 publication Critical patent/JPH0114279B2/ja
Granted legal-status Critical Current

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.
JP2023381A 1981-02-16 1981-02-16 Method for stabilizing ester oil-containing oil Granted JPS57135897A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52119608A (en) * 1976-04-01 1977-10-07 Hitachi Ltd Lubricant grease

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52119608A (en) * 1976-04-01 1977-10-07 Hitachi Ltd Lubricant grease

Cited By (4)

* Cited by examiner, † Cited by third party
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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