JPS5525466A - Flame-retardant hydraulic oil composition - Google Patents

Flame-retardant hydraulic oil composition

Info

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
Application number
JP9881178A
Other languages
Japanese (ja)
Inventor
Yoshikazu Izumi
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.)
Kao Corp
Original Assignee
Kao Corp
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 Kao Corp filed Critical Kao Corp
Priority to JP9881178A priority Critical patent/JPS5525466A/en
Publication of JPS5525466A publication Critical patent/JPS5525466A/en
Pending legal-status Critical Current

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  • 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
JP9881178A 1978-08-14 1978-08-14 Flame-retardant hydraulic oil composition Pending JPS5525466A (en)

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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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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