ATE83003T1 - HYDRAULIC FLUIDS. - Google Patents

HYDRAULIC FLUIDS.

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Publication number
ATE83003T1
ATE83003T1 AT88901051T AT88901051T ATE83003T1 AT E83003 T1 ATE83003 T1 AT E83003T1 AT 88901051 T AT88901051 T AT 88901051T AT 88901051 T AT88901051 T AT 88901051T AT E83003 T1 ATE83003 T1 AT E83003T1
Authority
AT
Austria
Prior art keywords
hydraulic fluids
oxidant
aromatic amines
triglyceride
natural
Prior art date
Application number
AT88901051T
Other languages
German (de)
Inventor
Gert Stenmark
Kari Jokinen
Heikki Kerkkonen
Eero Leppaemaeki
Eino Piirilae
Original Assignee
Raision Tehtaat Oy Ab
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21727264&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE83003(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US07/007,627 external-priority patent/US4783274A/en
Application filed by Raision Tehtaat Oy Ab filed Critical Raision Tehtaat Oy Ab
Application granted granted Critical
Publication of ATE83003T1 publication Critical patent/ATE83003T1/en

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    • 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
    • C10M2215/068—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings having amino groups bound to polycyclic aromatic ring systems, i.e. systems with three or more condensed rings
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    • C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
    • C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
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    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
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    • 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
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    • 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
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    • 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
    • C10M2223/045—Metal containing thio derivatives
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    • 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
    • C10M2223/049—Phosphite
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    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/10—Phosphatides, e.g. lecithin, cephalin
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    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/04—Groups 2 or 12
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    • 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

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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)
  • Fluid-Pressure Circuits (AREA)

Abstract

Hydraulic fluids based on natural triglycerides. The base composition for these hydraulic fluids consists of at least one natural triglyceride and one anti-oxidant additive. The triglyceride suitable for the composition can be defined as an ester of a straight-chain C10 to C22 fatty acid and glycerol which has an iodine number of between 50 and 128. The fraction of the anti-oxidant additives is selected preferably among hindered phenolics and aromatic amines, but can be completed by compounds selected from metal salts of dithioacids, phosphites, sulfides, amides, non-aromatic amines, hydrazides and triazols. Preferred amount of the anti-oxidant(s) in the fluid is 1.5 to 4.5 percent by weight.
AT88901051T 1987-01-28 1988-01-27 HYDRAULIC FLUIDS. ATE83003T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/007,627 US4783274A (en) 1983-02-11 1987-01-28 Hydraulic fluids
PCT/FI1988/000011 WO1988005808A1 (en) 1987-01-28 1988-01-27 Hydraulic fluids
EP88901051A EP0349534B1 (en) 1987-01-28 1988-01-27 Hydraulic fluids

Publications (1)

Publication Number Publication Date
ATE83003T1 true ATE83003T1 (en) 1992-12-15

Family

ID=21727264

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88901051T ATE83003T1 (en) 1987-01-28 1988-01-27 HYDRAULIC FLUIDS.

Country Status (7)

Country Link
EP (1) EP0349534B1 (en)
AT (1) ATE83003T1 (en)
AU (1) AU1227388A (en)
DE (1) DE3876432T2 (en)
DK (1) DK536188D0 (en)
NO (1) NO174060B (en)
WO (1) WO1988005808A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993003123A1 (en) * 1991-08-09 1993-02-18 The Lubrizol Corporation Functional fluid with triglycerides, detergent-inhibitor additives and viscosity modifying additives
DE4202034A1 (en) * 1992-01-25 1993-07-29 Rwe Dea Ag hydraulic fluids
FI94278C (en) * 1992-04-22 1995-08-10 Risto Wisakanto Use of a pressure medium in drilling
DE69324746T2 (en) * 1992-09-02 1999-10-21 The Lubrizol Corp., Wickliffe Antioxidants for highly monounsaturated vegetable oils
GB9221841D0 (en) * 1992-10-17 1992-12-02 Castrol Ltd Industrial oils
GB9221846D0 (en) * 1992-10-17 1992-12-02 Castrol Ltd Lubricants
US5358652A (en) * 1992-10-26 1994-10-25 Ethyl Petroleum Additives, Limited Inhibiting hydrolytic degradation of hydrolyzable oleaginous fluids
DE4323771A1 (en) * 1993-07-15 1995-01-19 Henkel Kgaa Triglyceride-based base oil for hydraulic oils
US5338471A (en) * 1993-10-15 1994-08-16 The Lubrizol Corporation Pour point depressants for industrial lubricants containing mixtures of fatty acid esters and vegetable oils
US6156228A (en) * 1994-11-16 2000-12-05 Houghton International, Inc. Trialkoxyalkylphosphate-based fire resistant fluid containing triglyceride
US5580482A (en) * 1995-01-13 1996-12-03 Ciba-Geigy Corporation Stabilized lubricant compositions
JP2001214187A (en) * 2000-02-04 2001-08-07 Nippon Mitsubishi Oil Corp Hydraulic fluid composition
DE102004018732A1 (en) * 2004-04-17 2005-11-03 Gunnar Berle oil separator
EP2228425A1 (en) * 2009-02-27 2010-09-15 Dako Ag Lubricant
DE102012222747A1 (en) 2012-12-11 2014-06-12 Gunnar Berle Compressor i.e. rotary screw compressor, for use in compressed air-powered machine or tool to produce pressurized air, has heat exchanger through which compressed air is dewatered and cooled in cooling device

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
US1789927A (en) * 1927-09-23 1931-01-20 Vanderbilt Co R T Oil composition
DK117012B (en) * 1966-04-19 1970-03-09 Sun Oil Co Hydraulic oil that is resistant to oxidation.
US4278554A (en) * 1978-12-04 1981-07-14 Ethyl Corporation Antioxidant
US4532059A (en) * 1982-11-25 1985-07-30 Ciba-Geigy Corporation Benzylated phenols
FI66899C (en) * 1983-02-11 1984-12-10 Kasvisoeljy Vaextolje Ab Oy SMOERJMEDEL MED TRIGLYCERIDER SOM HUVUDKONPONENT
JPS59227986A (en) * 1983-06-10 1984-12-21 Kao Corp Metal working oil composition
GB2152073B (en) * 1983-12-23 1986-10-22 Ciba Geigy Lubricant stabilizer additives
CA1248516A (en) * 1985-07-15 1989-01-10 Stephen C. Cohen Lubricating oil compositions containing novel combination of stabilizers

Also Published As

Publication number Publication date
NO174060B (en) 1993-11-29
NO884237L (en) 1988-09-23
EP0349534A1 (en) 1990-01-10
AU1227388A (en) 1988-08-24
DK536188A (en) 1988-09-27
DK536188D0 (en) 1988-09-27
DE3876432T2 (en) 1993-04-08
DE3876432D1 (en) 1993-01-14
NO884237D0 (en) 1988-09-23
WO1988005808A1 (en) 1988-08-11
EP0349534B1 (en) 1992-12-02

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