EP0116460A2 - Additif modifiant la friction pour fluides de transmission d'énergie - Google Patents

Additif modifiant la friction pour fluides de transmission d'énergie Download PDF

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Publication number
EP0116460A2
EP0116460A2 EP84300788A EP84300788A EP0116460A2 EP 0116460 A2 EP0116460 A2 EP 0116460A2 EP 84300788 A EP84300788 A EP 84300788A EP 84300788 A EP84300788 A EP 84300788A EP 0116460 A2 EP0116460 A2 EP 0116460A2
Authority
EP
European Patent Office
Prior art keywords
additive
composition
power transmission
fluids
alkyl
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
EP84300788A
Other languages
German (de)
English (en)
Other versions
EP0116460A3 (en
EP0116460B1 (fr
Inventor
Antonio Gutierrez
Rosemary O'halloran
Stanley James Brois
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
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 Exxon Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of EP0116460A2 publication Critical patent/EP0116460A2/fr
Publication of EP0116460A3 publication Critical patent/EP0116460A3/en
Application granted granted Critical
Publication of EP0116460B1 publication Critical patent/EP0116460B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/20—Thiols; Sulfides; Polysulfides
    • C10M135/22—Thiols; Sulfides; Polysulfides containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
    • C10M135/26—Thiols; Sulfides; Polysulfides containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing carboxyl groups; Derivatives thereof
    • 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
    • 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
    • C10M2219/085—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing carboxyl groups; Derivatives 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
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/08—Hydraulic fluids, e.g. brake-fluids

Definitions

  • This invention relates to power transmission shift fluids, such as automatic transmission fluids; which contain an additive effective in providing friction modification benefits.
  • Mineral oil based power transmission shift fluids, or functional fluids, such as automatic transmission fluids are required to exhibit a number of properties such as antiwear, friction modification, oxidation inhibition, anticorrossion, demulsification and the like in order to qualify for commercial acceptance.
  • Patent 4,129,510 issued December 12, 1978 to Smith', disclosed sulfur-containing additive derived from reacting a hydrocarbyl mercaptan having 1 to 5 SH groups with a C 3 to C 38 aldehyde or ketone to form an intermediate which is subsequently reacted with an olefinic carboxylic acid or functional derivative.
  • the products are said to be useful as oxidation and rust inhibitors in lubricants and fuels.
  • power transmission shift fluid compositions comprising a major amount of a mineral oil of lubricating viscosity and an oil-soluble alkylthio succinic anhydride or acid additive in an amount to provide effective friction modification, the additive being represented by the formulas: wherein R' is an alkyl of about 8 to 30 carbon atoms and R is a lower C l -C 4 alkyl or hydrogen. Preferred are those compounds where the total R' (R)CHCH 2 - group has about 16 to 20, such as 18, carbon atoms.
  • a particularly preferred embodiment of the present invention is the addition product of octadecyl mercaptan with maleic anhydride.
  • compositions of the present invention may contain the additive generally within the range of about 0.01 to 1 wt% to provide the effective friction properties.
  • the power transmission shift fluids will contain about 0.1 to 0.5 wt% of the additive of the present invention.
  • Octadecyl thiosuccinic acid or anhydride are preferred additives of this invention.
  • the additive of the present invention will function. as a friction modifier in other power transmission shift fluids based on mineral oils such as hydraulic fluids, power brake and power steering fluids, heavy duty equipment fluids and the like.
  • Friction modification is one of the most demanding properties to effectively provide in an automatic transmission fluid and is considered the characteristic which distinguishes ATF compositions from other categories of lubricants. Very specific frictional properties related to transmission parts operation must be met in order to have an acceptable fluid.
  • the additive of the present invention is highly advantageous in that it satisfies at low treat levels the significant friction modification tests, and is efficiently prepared at relatively lower costs thereby. providing a more effective and economical automatic trans-' mission fluid.
  • the properties evaluated in ATF tests and specifications are generally applicable to other power shift transmission fluids.
  • ATF compositions contain a number of conventional additives in amounts providing their normal attendant functions and are typically blended into the mineral oil base in the following ranges:
  • Typical base oils for automatic transmission fluids and power transmission shift fluids generally include a wide variety of light hydrocarbon mineral oils, such as naphthenic base, paraffin base and mixtures thereof, having a lubricating viscosity range of about 34 to 45 SUS (Saybolt Universal Seconds) at 38°C.
  • ATF compositions used in the examples below were formulated in accordance with the components and concentrations noted above (referred to as Base Fluid) except the friction modifier was the compound of this invention used in the amounts reported below.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
EP84300788A 1983-02-08 1984-02-08 Additif modifiant la friction pour fluides de transmission d'énergie Expired EP0116460B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46495083A 1983-02-08 1983-02-08
US464950 1983-02-08

Publications (3)

Publication Number Publication Date
EP0116460A2 true EP0116460A2 (fr) 1984-08-22
EP0116460A3 EP0116460A3 (en) 1985-05-22
EP0116460B1 EP0116460B1 (fr) 1987-08-12

Family

ID=23845920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84300788A Expired EP0116460B1 (fr) 1983-02-08 1984-02-08 Additif modifiant la friction pour fluides de transmission d'énergie

Country Status (3)

Country Link
EP (1) EP0116460B1 (fr)
CA (1) CA1208197A (fr)
DE (1) DE3465332D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2599045A1 (fr) * 1986-05-26 1987-11-27 Elf France Additifs a effet anticorrosion pour fluides aqueux et compositions renfermant lesdits additifs
US5582760A (en) * 1995-12-22 1996-12-10 Exxon Research And Engineering Company High load-carrying turbo oils containing amine phosphate and alkylthiosuccinic acid
US5585029A (en) * 1995-12-22 1996-12-17 Exxon Research And Engineering Company High load-carrying turbo oils containing amine phosphate and 2-alkylthio-1,3,4-thiadiazole-5-alkanoic acid
EP0926224A2 (fr) * 1997-12-25 1999-06-30 Tonen Corporation Composition d'huile lubrifiante

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2371142A (en) * 1945-03-13 Anticoerosive
US2496798A (en) * 1946-05-14 1950-02-07 Texas Co Rust-inhibiting lubricating composition

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2371142A (en) * 1945-03-13 Anticoerosive
US2496798A (en) * 1946-05-14 1950-02-07 Texas Co Rust-inhibiting lubricating composition

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2599045A1 (fr) * 1986-05-26 1987-11-27 Elf France Additifs a effet anticorrosion pour fluides aqueux et compositions renfermant lesdits additifs
US5582760A (en) * 1995-12-22 1996-12-10 Exxon Research And Engineering Company High load-carrying turbo oils containing amine phosphate and alkylthiosuccinic acid
US5585029A (en) * 1995-12-22 1996-12-17 Exxon Research And Engineering Company High load-carrying turbo oils containing amine phosphate and 2-alkylthio-1,3,4-thiadiazole-5-alkanoic acid
EP0926224A2 (fr) * 1997-12-25 1999-06-30 Tonen Corporation Composition d'huile lubrifiante
EP0926224A3 (fr) * 1997-12-25 2000-06-28 Tonen Corporation Composition d'huile lubrifiante

Also Published As

Publication number Publication date
DE3465332D1 (en) 1987-09-17
EP0116460A3 (en) 1985-05-22
CA1208197A (fr) 1986-07-22
EP0116460B1 (fr) 1987-08-12

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