JPS5525466A - Flame-retardant hydraulic oil composition - Google Patents
Flame-retardant hydraulic oil compositionInfo
- Publication number
- JPS5525466A JPS5525466A JP9881178A JP9881178A JPS5525466A JP S5525466 A JPS5525466 A JP S5525466A JP 9881178 A JP9881178 A JP 9881178A JP 9881178 A JP9881178 A JP 9881178A JP S5525466 A JPS5525466 A JP S5525466A
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic oil
- oil composition
- alkyl
- flame
- pref
- 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: To prepare novel hydraulic oil composition having excellent flame-retardancy and extremely high viscosity index, by compounding a specific organic phosphate with a specific amount of an aliphatic polyester.
CONSTITUTION: A composition composed of (A) an organic phosphate of formula I or II (R1W3, R'1W3 are H, 1W4C alkyl; the sum of the carbon numbers of the substitution alkyl groups in each benzene ring is ≤ 4; R4 is 4W12C alkyl), pref. triaryl phosphate, and (B) 5W10 wt% of a fatty acid polyester having a molecular weight of 5000W50000 (pref. 10000W30000) and derived from a 3W24C alkane diacid such as succinic acid and a 2W10C alkylene glycol such as ethylene glycol.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9881178A JPS5525466A (en) | 1978-08-14 | 1978-08-14 | Flame-retardant hydraulic oil composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9881178A JPS5525466A (en) | 1978-08-14 | 1978-08-14 | Flame-retardant hydraulic oil composition |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5525466A true JPS5525466A (en) | 1980-02-23 |
Family
ID=14229705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9881178A Pending JPS5525466A (en) | 1978-08-14 | 1978-08-14 | Flame-retardant hydraulic oil composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5525466A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5392194A (en) * | 1977-01-24 | 1978-08-12 | Toyo Kogyo Co | Detecting method for lead which adhered to noble metal catalysts for waste gas purification |
-
1978
- 1978-08-14 JP JP9881178A patent/JPS5525466A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5392194A (en) * | 1977-01-24 | 1978-08-12 | Toyo Kogyo Co | Detecting method for lead which adhered to noble metal catalysts for waste gas purification |
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