EP2565257A1 - Feuerfestes hydrauliköl - Google Patents

Feuerfestes hydrauliköl Download PDF

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Publication number
EP2565257A1
EP2565257A1 EP10850795A EP10850795A EP2565257A1 EP 2565257 A1 EP2565257 A1 EP 2565257A1 EP 10850795 A EP10850795 A EP 10850795A EP 10850795 A EP10850795 A EP 10850795A EP 2565257 A1 EP2565257 A1 EP 2565257A1
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EP
European Patent Office
Prior art keywords
flame
phosphate
retardant
hydraulic oil
lubricating base
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Withdrawn
Application number
EP10850795A
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English (en)
French (fr)
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EP2565257A4 (de
Inventor
Kwang Soon Kim
Doo Myung Kim
Sun Ki Baik
Dong Choon Lee
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Hannal Inc
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Hannal Inc
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Application filed by Hannal Inc filed Critical Hannal Inc
Publication of EP2565257A1 publication Critical patent/EP2565257A1/de
Publication of EP2565257A4 publication Critical patent/EP2565257A4/de
Withdrawn legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
    • C10M141/10—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic phosphorus-containing compound
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/102—Aliphatic fractions
    • C10M2203/1025—Aliphatic fractions used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/2805—Esters used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
    • C10M2207/2825—Esters of (cyclo)aliphatic oolycarboxylic acids used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/283—Esters of polyhydroxy compounds
    • C10M2207/2835—Esters of polyhydroxy compounds used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/285—Esters of aromatic polycarboxylic acids
    • C10M2207/2855—Esters of aromatic polycarboxylic acids used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
    • C10M2215/064—Di- and triaryl amines
    • C10M2215/065—Phenyl-Naphthyl amines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/041—Triaryl phosphates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/043—Ammonium or amine salts thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/02—Viscosity; Viscosity index
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/02—Pour-point; Viscosity index
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/08—Resistance to extreme temperature
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/08—Hydraulic fluids, e.g. brake-fluids

Definitions

  • the present invention relates to a new type of flame-retardant hydraulic oil which is impervious to fire and has heat and oxidation stability to lengthen a life, contributing to social development and stability.
  • a hydraulic oil which contributes to dealing with a risk of fire is referred to as a flame-retardant hydraulic oil and is classified as follows in Table 1, according to the International Organization for Standardization (ISO) standards ISO classification system.
  • ISO International Organization for Standardization
  • a flame-retardant hydraulic oil collectively refers to products which cause small flames, does not allow a fire to quickly spread, and is self-extinguishable when a fire breaks out.
  • An aspect of the present invention provides a flame-retardant hydraulic oil which is fire resistant, inexpensive, does not need to be handled in a special environment, and has a long life.
  • a flame-retardant hydraulic oil prepared by mixing 25 to 97 % by weight (wt%) of a petroleum lubricating base oil, 1 to 20 wt% of a phosphorus or halogen flame-retardant additive, 1 to 35 wt% of an ester compound, and 0.05 to 20 wt% of a performance enhancer.
  • the petroleum lubricating base oil may include most refined petroleum lubricating base oils provided domestically and internationally, wherein a petroleum lubricating base oil having a dynamic viscosity of 5 to 1,000 millimeters/second (mm 2 /sec) at 40 °C and a paraffin content of 50 to 90 wt% is preferably used since petroleum lubricating base oils having excessively high or excessively low viscosity may cause a problem in operation.
  • a petroleum lubricating base oil having a dynamic viscosity of 5 to 1,000 millimeters/second (mm 2 /sec) at 40 °C and a paraffin content of 50 to 90 wt% is preferably used since petroleum lubricating base oils having excessively high or excessively low viscosity may cause a problem in operation.
  • the flame-retardant additive used for the flame-retardant hydraulic oil may include phosphorus or halogen flame-retardant additives, wherein a compound including both phosphorus and halogen additives further enhances flame retardancy.
  • the flame-retardant additive is obtained by introducing phosphorus and a halogen, which are flame retardant, into an aryl or allyl group and is selected from the group consisting of tricresyl phosphate, tributyl phosphate, tris( ⁇ -chloroethyl) phosphate, tris( ⁇ -chloropropyl) phosphate, tris(dichloropropyl) phosphate, trioctyl phosphate, triphenyl phosphate, octyl diphenyl phosphate, tris(isopropylphenyl) phosphate and tributoxyethyl phosphate.
  • the ester compound used for the flame-retardant hydraulic oil may include at least one selected from the group consisting of compounds represented by Formulas 1 to 3: where R 1 and R 2 are the same or different and each represent a C1 to C2 alkyl group, and R 3 and R 4 are the same or different and each represent a C6 to C22 saturated or unsaturated alkyl group; where R 1 represents a C1 to C2 alkyl group, and R 2 , R 3 and R 4 are the same or different and each represent a C6 to C22 saturated or unsaturated alkyl group; and where n is an integer from 2 to 12, and R 1 and R 2 are the same or different and each represent a C2 to C 18 alkyl group.
  • Formulas 1 to 3 where R 1 and R 2 are the same or different and each represent a C1 to C2 alkyl group, and R 3 and R 4 are the same or different and each represent a C6 to C22 saturated or unsaturated alkyl group; where n is an integer from 2 to
  • the ester compound may include polyol esters disclosed by the inventor of the present invention in KR Patent Registration No. 88842, No. 169565 and No. 0201759 and may include at least one of dibasic esters, such as adipates, azelates, sebacates and phthalates.
  • the hydraulic oil is inexpensive, does not need to be handled in a special environment and has excellent flame retardancy by adding the phosphorus or halogen flame-retardant additive to the petroleum lubricating base oil.
  • the phosphorus or halogen flame-retardant additive is not properly mixed into the petroleum lubricating base oil, but the present invention solves such a problem by adding the ester compound.
  • the performance enhancer includes an antioxidant, an anti-load and anti-abrasive additive, a viscosity enhancer, an anticorrosive agent and an antifoaming agent.
  • the antioxidant may include metal salts of phenylnaphthylamine, phenyl, and phosphate ester and be used in an amount of 0.1 to 10 wt%.
  • the anti-load and anti-abrasive additive is preferably amine salts of phosphate ester neutralized and represented by Formula 4, has a synergy effect in combination with metal salts of phosphate ester, allyl phosphate ester and a sulfide as additives, and is added in an amount of 0.05 to 7.0 wt%: where R represents hydrogen or a C1 to C10 alkyl or aryl hydrocarbon compound, X represents hydrogen or C1 to C4 hydrocarbon, and n is an integer from 1 to 10.
  • the viscosity enhancer may include an olefin copolymer, polymethacrylate or the like, preferably polymethacrylate exhibiting excellent shear stability and less change in viscosity and having a molecular weight of 200,000 or less.
  • a combination of a low molecular weight viscosity enhancer and a high molecular weight viscosity enhancer may improve low-temperature fluidity as well as viscosity index.
  • the viscosity enhancer is added in an amount of 0.1 to 5.0 wt%.
  • the anticorrosive agent or the antifoaming agent may be added, as necessary.
  • a flame-retardant hydraulic oil according to the present invention is safe from a fire, inexpensive, does not need to be handled in a special environment, and has a long life.
  • FIG. 1 is a diagram illustrating occurrences of sludge in examples of the present invention and comparative examples after an oxidation stability test.
  • Ester compounds used to prepare mixed flame-retardant hydraulic oils according to the present invention were prepared as listed in Table 3 and may be used independently or as mixtures.
  • Table 3 Type I (self-manufactured ester)
  • Type II commercially available ester
  • Appearance KS M 2106
  • KS M 2106 2.5 or lower 2.5 or lower Total acid number (mg KOH/g) 3.0 or lower 2.0 or lower Dynamic viscosity (40°C), mm 2 /sec) 20 to 120 10 to 250 Flash point (open type, °C) 250 or higher 200 or higher
  • Flame-retardant additives were prepared as illustrated in Table 4, wherein raw materials having a purity of 80% or higher were used for stability of the hydraulic oils.
  • Table 4 Flame-retardant additive A Tricresyl phosphate Flame-retardant additive B Tributyl phosphate Flame-retardant additive C Tris( ⁇ -chloroethyl) phosphate Flame-retardant additive D Tris( ⁇ -chloropropyl) phosphate Flame-retardant additive E Tris(dichloropropyl) phosphate Flame-retardant additive F Trioctyl phosphate Flame-retardant additive G Triphenyl phosphate Flame-retardant additive H Octyl diphenyl phosphate Flame-retardant additive I Tris(isopropylphenyl)phosphate) Flame-retardant additive J Tributoxyethyl phosphate
  • the lubricating base oils and the flame-retardant additives listed in Tables 2, 3 and 4 were added to suitable amounts of performance enhancers, thereby preparing hydraulic oils as illustrated in Tables 5 and 6.
  • content is expressed as percent by weight (wt%).
  • Example 1 Example 2
  • Example 3 Example 4
  • Example 5 Example 6
  • Example 7 Petroleum lubricating base oil A 20.0 40.0 Petroleum lubricating base oil C 65.0 30.0 Petroleum lubricating base oil E 60.0 20.0 40.0 70.0 Petroleum lubricating base oil G 40.0 40.0 10.0 Petroleum lubricating base oil I 10.0 25.0 40.0 Self-manufactured ester 1 5.0 10.0 10.0 Commercially available ester 2 3.0 5.0 30.0 Flame-retardant additive A 2.0 2.0 5.0 Flame-retardant additive B 5.0 3.0 Flame-retardant additive C 1.0 Flame-retardant additive D 10.0 Flame-retardant additive E 3.0 Flame-retardant additive F 10.0 Flame-retardant additive G 10.0 Flame-retardant additive H 2.0 5.0 Flame-retardant additive I 5.0 Flame-retardant additive J 10.0 Antioxidant 1.0 0.5 2.0 1.0 0.5 2.0 0.5 Anti-abrasive additive 1.0 0.5 2.0 2.0 2.0 2.0 Viscos
  • Example 8 Example 9
  • Example 10 Example 11
  • Example 12 Example 13
  • the hydraulic oils were generalized in accordance with the International Standards Organization Viscosity Grade (ISO VG).
  • Oxidation stability was evaluated by the rotating bomb oxidation test, ASTM D 2272, while abrasion resistance was evaluated by the shell 4-ball test.
  • flame retardancy was evaluated by the hot manifold test, MIL-F-7100 Fed 6053, in which a sample was dropped on a manifold at a temperature of 374 °C and identified whether to ignite, and by a sprayed fire test, by which a sample is accessed as flame retardant when the sample has an oxygen demand of 50% or higher necessary to catch fire when sprayed.
  • Example 7 Dynamic viscosity (ISO VG) 32 32 46 46 68 68 100 Flash point (°C) 250 250 250 260 270 270 300 Pour point (°C) -30.0 -30.0 -25.0 -25.0 -25.0 -20.0 Oxidation stability (RBOT, min) 500 400 400 500 350 400 500 Abrasion resistance (Scar ⁇ mm) 0.35 0.35 0.35 0.30 0.30 0.35 0.35 Flame retardancy Hot Manifold test Extinguished immediately after ignition Sprayed fire test Oxygen demand: 50 - 55 % Table 8 Test categories Example 8 Example 9 Example 10 Example 11 Example 12 Example 13 Example 14 Dynamic viscosity (ISO VG) 46 46 68 68 68 100 100 Flash point (°C) 250 260 250 270 270 280 280 Pour point (°C) -25.0 -25.0 -25.0 -25.0 -20.0 -20.0 Oxidation stability (RBOT, min) 400 400 400 400 400 400 400 400 400 400 400 400 400 400 500 350 400 500 Abrasion resistance (S
  • FIG. 1 is a diagram illustrating occurrences of sludge in examples of the present invention and comparative examples after an oxidation stability test.
  • the flame-retardant hydraulic oils according to the examples of the present invention involve less discoloration and generate a small amount of sludge after being tested over a long period of time when compared to a petroleum hydraulic oil and a synthetic hydraulic oil.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
EP10850795.5A 2010-04-27 2010-05-27 Feuerfestes hydrauliköl Withdrawn EP2565257A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020100038955A KR101147381B1 (ko) 2010-04-27 2010-04-27 난연성 유압작동유
PCT/KR2010/003368 WO2011136429A1 (ko) 2010-04-27 2010-05-27 난연성 유압작동유

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EP2565257A1 true EP2565257A1 (de) 2013-03-06
EP2565257A4 EP2565257A4 (de) 2013-10-16

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KR (1) KR101147381B1 (de)
WO (1) WO2011136429A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2547729C2 (ru) * 2013-06-03 2015-04-10 Дмитрий Сергеевич Колыбельский Взрывопожаробезопасная рабочая жидкость

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102156065B1 (ko) * 2020-01-31 2020-09-15 주식회사 한국발보린 무촉매 및 무수세 공정에 의한 합성식물유 및 이를 포함하는 유압작동유의 제조방법
KR102217102B1 (ko) * 2020-06-12 2021-02-23 주식회사 한국발보린 합성식물유 및 이를 포함하는 환경친화형-난연성 유압작동유 조성물
JP7402390B2 (ja) * 2020-01-31 2023-12-21 ハンバル インク． 合成植物油及びこれを含む環境親和型－難燃性油圧作動油の組成物及びその製造方法

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EP0237804A2 (de) * 1986-02-19 1987-09-23 Nippon Oil Co. Ltd. Ölzusammensetzung für Transmission mit Handbetrieb
JPH11269480A (ja) * 1998-03-25 1999-10-05 Idemitsu Kosan Co Ltd 難燃性油圧作動油
US20070027042A1 (en) * 2005-07-29 2007-02-01 Yasuyoshi Suzuki Gear oil composition
US20090286705A1 (en) * 2008-04-10 2009-11-19 Marc-Andre Poirier Flame retardant lubricating oil compositions

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US5976399A (en) * 1992-06-03 1999-11-02 Henkel Corporation Blended polyol ester lubricants for refrigerant heat transfer fluids
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