EP0406825B1 - Composition de lubrifiant - Google Patents

Composition de lubrifiant Download PDF

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Publication number
EP0406825B1
EP0406825B1 EP90112761A EP90112761A EP0406825B1 EP 0406825 B1 EP0406825 B1 EP 0406825B1 EP 90112761 A EP90112761 A EP 90112761A EP 90112761 A EP90112761 A EP 90112761A EP 0406825 B1 EP0406825 B1 EP 0406825B1
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Prior art keywords
hydrogen
formula
composition according
benzyl
alkyl
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EP90112761A
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German (de)
English (en)
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EP0406825A1 (fr
Inventor
Samuel Dr. Evans
Rolf Dr. Schumacher
Paul Dr. Dubs
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Novartis AG
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Ciba Geigy AG
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Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M133/00Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/38Heterocyclic nitrogen compounds
    • C10M133/40Six-membered ring containing nitrogen and carbon only
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22Heterocyclic nitrogen compounds
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22Heterocyclic nitrogen compounds
    • C10M2215/221Six-membered rings containing nitrogen and carbon only
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22Heterocyclic nitrogen compounds
    • C10M2215/225Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22Heterocyclic nitrogen compounds
    • C10M2215/225Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
    • C10M2215/226Morpholines
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/30Heterocyclic compounds
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/25Internal-combustion engines
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/25Internal-combustion engines
    • C10N2040/251Alcohol-fuelled engines
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/25Internal-combustion engines
    • C10N2040/255Gasoline engines
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/25Internal-combustion engines
    • C10N2040/255Gasoline engines
    • C10N2040/28Rotary engines

Definitions

  • the present invention relates to lubricant compositions that are stabilized against oxidative degradation. Stabilization is achieved by adding a sterically hindered amine with a specific structure.
  • Organic antioxidants for lubricants are primarily organic sulfur and phosphorus compounds, but also aromatic amines and phenols, especially sterically hindered phenols (see, for example, Ullmanns Encyklopadie der Technische Chemie, 4th edition, Verlag Chemie, Volume 20 (1981); page 541- 43). Sterically hindered amines for stabilizing lubricating oils have also been proposed, e.g. in US-A-4 069 199 or JP-A-85/28496.
  • EP-A-356 677 proposes mixtures of aromatic amines and sterically hindered amines as antioxidants for lubricants, it also being possible to add phenolic antioxidants to these mixtures.
  • R1, R3, R4, R5 or R6 are C1-C12-alkyl, this can be linear or branched alkyl, e.g. Methyl, ethyl, propyl, isopropyl, butyl, isoamyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl or dodecyl.
  • R3 as C1-C18 alkyl can also e.g. Tetradecyl, hexadecyl or octadecyl.
  • R1, R4, R5 and R6 as alkyl are preferably unbranched C1-C4 alkyl.
  • R2, R3 or R5 are C5-C12-cycloalkyl, this can e.g. Cyclopentyl, cyclohexyl, methylcyclohexyl, cyclooctyl or cyclododecyl, but preferably cyclohexyl.
  • R2 or R3 are C2-C5-hydroxyalkyl, this can e.g. 2-Hydroxyethyl, 2-hydroxypropyl, 3-hydroxypropyl or 2-hydroxybutyl, but preferably 2-hydroxyethyl.
  • R3 as C3-C18 alkoxyalkyl can e.g. 2-methoxyethyl, 2-ethoxyethyl, 3-methoxypropyl, 3-ethoxypropyl, 3-isopropoxypropyl, 3-butoxypropyl or 3-dodecyloxypropyl.
  • R3 as C4-C20 dialkylaminoalkyl can e.g. 2-Dimethylaminoethyl, 3-dimethylaminopropyl, 3-di (isopropyl) aminopropyl or 3-di (octyl) aminopropyl.
  • R6 as C1-C12 alkoxy is preferably C1-C4 alkoxy, especially methoxy or ethoxy.
  • Preferred as component (B) is a compound of the formula I in which n is 1 or 2, R is hydrogen, R1 is hydrogen, C1-C4-alkyl, allyl, benzyl, acetyl or -OR5, R2 is hydrogen, C1-C4- Is alkyl or a group of the formula II, R3 if n is 1, is hydrogen, C1-C8-alkyl or C3-C1 Alk-alkoxyalkyl and if n is 2, is C2-C8-alkylene, and R5 C6-C10- Means alkyl, cyclohexyl or benzyl.
  • a particularly preferred component (B) is a compound of the formula I in which n is 1 or 2, R is hydrogen, R1 is hydrogen, methyl or acetyl, R2 is hydrogen and R3, if n is 1, is hydrogen or C3-C8- Alkoxyalkyl means, and when n is 2, means C2-C6 alkylene.
  • component (B) are the compounds of the formula I in which n is 2 and R3 is C2-C6alkylene.
  • the compounds of formula I are known compounds which e.g. in U.S. Patents 3,684,765, 3,904,581 and 4,104,248. They are used as light stabilizers for organic polymers.
  • Examples of individual compounds of the formula I are: 2,2,6,6-tetramethyl-4-butylaminopiperidine 2,2,6,6-tetramethyl-4-octylaminopiperidine 2,2,6,6-tetramethyl-4-cyclohexylaminopiperidine 2,2,6,6-tetramethyl-4- (N-hydroxyethylbutylamino) piperidine 2,2,6,6-tetramethyl-4- (3-methoxypropylamino) piperidine 2,2,6,6-tetramethyl-4- (3-dimethylaminopropylamino) piperidine Bis (2,2,6,6-tetramethylpiperidin-4-yl) amine 2,3,6-trimethyl-2,6-diethyl-4-isopropylaminopiperidine 1,2,2,6,6-pentamethyl-4-dodecylaminopiperidine 1,2,2,6,6-pentamethyl-4- (N-methyldodecylamino) piperidine 1-acetyl-2,2,
  • Component (A) is a mineral or synthetic base oil, as is common for the preparation of lubricants.
  • Synthetic oils can e.g. Esters of polycarboxylic acids or of polyols, they can be aliphatic polyesters or poly- ⁇ -olefins, silicones, phosphoric acid esters or polyalkylene glycols.
  • the lubricant can also be a grease based on an oil and a thickener. Such lubricants are e.g. described in D. Klamann "Lubricants and related products", Verlag Chemie, Weinheim 1982.
  • Component (B) is preferably added to the base oil in an amount of 0.05 to 5, in particular 0.1 to 2% by weight, based on the base oil.
  • the addition can take place directly or a concentrated solution of (B) in the oil or in another solvent is first prepared and this solution is added to the oil.
  • the lubricant composition may additionally contain other additives such as e.g. Phosphorus III esters, metal deactivators, rust inhibitors, viscosity index improvers, pour point depressants, dispersants, surfactants or wear protection additives.
  • additives e.g. Phosphorus III esters, metal deactivators, rust inhibitors, viscosity index improvers, pour point depressants, dispersants, surfactants or wear protection additives.
  • Examples of phosphorus III esters are: Triphenyl phosphite, decyl diphenyl phosphite, phenyl didecyl phosphite, tris- (nonylphenyl) phosphite, trilauryl phosphite, trioctadecyl phosphite, distearyl-pentaerythritol diphosphite, tris- (2,4-di-tert.butylphenyl) -phosphite, diisodechritol , 4-di-tert.butylphenyl) pentaerythritol diphosphite, tristearyl sorbitol triphosphite, tetrakis (2,4-di-tert.butylphenyl) -4,4′-biphenylene diphosphonite, bis- (2,6-di- tert-butyl-4
  • metal deactivators for example for copper
  • Triazoles Triazoles, benzotriazoles and their derivatives, tolutriazoles and their derivatives, 2-mercaptobenzthiazole, 2-mercaptobenztriazole, 2,5-dimercaptobenztriazole, 2,5-dimercaptobenzthiadiazole, 5,5'-methylenebisbenzotriazole, 4,5,6,7-tetrahydrobenztriazole, salicylides -propylenediamine, salicylaminoguanidine and its salts.
  • viscosity index improvers are: Polyacrylates, polymethacrylates, vinyl pyrrolidone / methacrylate copolymers, polyvinyl pyrrolidones, polybutenes, olefin copolymers, styrene / acrylate copolymers, polyethers.
  • pour point depressants are: Polymethacrylate, alkylated naphthalene derivatives.
  • dispersants / surfactants are: Polybutenylsuccinic acid amides or imides, polybutenylphosphonic acid derivatives, basic magnesium, calcium and barium sulfonates and phenolates.
  • wear protection additives are: Compounds containing sulfur and / or phosphorus and / or halogen, such as sulfurized vegetable oils, zinc dialkyldithiophosphates, tritolyl phosphate, chlorinated paraffins, alkyl and aryl di- and tri-sulfides, triphenyl phosphorothionates, diethanolaminomethyltolyltriazole, di (2-ethyltylylolyl) aminol.
  • sulfurized vegetable oils such as sulfurized vegetable oils, zinc dialkyldithiophosphates, tritolyl phosphate, chlorinated paraffins, alkyl and aryl di- and tri-sulfides, triphenyl phosphorothionates, diethanolaminomethyltolyltriazole, di (2-ethyltylylolyl) aminol.
  • the lubricant can also contain solid lubricants, such as graphite or molybdenum sulfide.
  • Table 1 shows the induction times. The longer the induction time, the higher the antioxidant effect of the tested stabilizer.

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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)
  • Anti-Oxidant Or Stabilizer Compositions (AREA)

Claims (9)

  1. Composition lubrifiante qui contient :
    (A) une huile minérale ou synthétique ou un mélange de telles huiles et
    (B) comme stabilisant contre l'oxydation une amine à empêchement stérique répondant à la formule I :
    Figure imgb0008
       dans laquelle
       n est égal à 1 ou à 2,
       R représente l'hydrogène ou un méthyle,
       R₁ représente l'hydrogène, un alkyle en C₁-C₁₂, un allyle, un benzyle ou un radical -CO-R₄, -OR₅ ou -O-CO-R₆,
       R₂ représente l'hydrogène, un alkyle en C₁-C₁₂, un cycloalkyle en C₅-C₁₂, un hydroxyalkyle en C₂-C₅ ou un radical de formule II :
    Figure imgb0009
       R₃ représente :
    - lorsque n est égal à 1 : l'hydrogène, un alkyle en C₁-C₁₈, un cycloalkyle en C₅-C₁₂, un hydroxyalkyle en C₂-C₅, un alcoxyalkyle en C₃-C₁₈ ou un dialkylamino-alkyle en C₄-C₂₀, et
    - lorsque n est égal à 2 : un alkylène en C₂-C₁₂, un 2-hydroxy-1,3-propylène ou un xylylène,
       R₄ représente l'hydrogène, un alkyle en C₁-C₁₂ ou un phényle,
       R₅ représente l'hydrogène, un alkyle en C₁-C₁₂, un cycloalkyle en C₅-C₁₂ ou un benzyle, et
       R₆ représente un alkyle en C₁-C₁₂, un alcoxy en C₁-C₁₂ ou un phényle,
       et qui ne contient ni amine aromatique ni anti-oxydant phénolique.
  2. Composition selon la revendication 1, caractérisée en ce que (B) est un composé de formule I dans lequel n est égal à 1 ou à 2, R représente l'hydrogène, R₁ représente l'hydrogène, un alkyle en C₁-C₄, un allyle, un benzyle, un acétyle ou un radical -OR₅, R₂ représente l'hydrogène, un alkyle en C₁-C₄ ou un radical de formule II, R₃ représente, lorsque n est égal à 1, l'hydrogène, un alkyle en C₁-C₈ ou un alcoxyalkyle en C₃-C₁₀ et, lorsque n est égal à 2, un alkylène en C₂-C₈, et R₅ représente un alkyle en C₆-C₁₀, un cyclohexyle ou un benzyle.
  3. Composition selon la revendication 1, caractérisée en ce que (B) est un composé de formule I dans lequel n est égal à 1 ou à 2, R représente l'hydrogène, R₁ représente l'hydrogène, un méthyle ou un acétyle, R₂ représente l'hydrogène et R₃ représente, lorsque n est égal à 1, l'hydrogène ou un alcoxyalkyle en C₃-C₈ et, lorsque n est égal à 2, un alkylène en C₂-C₆.
  4. Composition selon la revendication 3, caractérisée en ce que (B) est un composé de formule I dans lequel n est égal à 2 et R₃ représente un alkylène en C₂-C₆.
  5. Composition selon la revendication 4, dans lequel (B) est la N,N′-bis-(2,2,6,6-tétraméthyl-pipéridine-4-yl)hexaméthylène-diamine.
  6. Composition selon la revendication 1 qui contient de 0,1 à 2 % en poids de (B) par rapport à (A).
  7. Application d'une composition selon la revendication 1 comme huile de moteur
  8. Application de composés de formule I tels que définis à la revendication 1 pour la stabilisation de lubrifiants contre la dégradation par oxydation, les lubrifiants ne contenant ni amine aromatique ni d'anti-oxydant phénolique.
  9. Application de composés de formule I tels que définis à la revendication 1 pour diminuer la formation de boues dans des huiles de moteur, les huiles ne contenant ni amine aromatique ni anti-oxydant phénolique.
EP90112761A 1989-07-07 1990-07-04 Composition de lubrifiant Expired - Lifetime EP0406825B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2529/89 1989-07-07
CH252989 1989-07-07

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EP0406825A1 EP0406825A1 (fr) 1991-01-09
EP0406825B1 true EP0406825B1 (fr) 1993-03-03

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JP (1) JPH0345695A (fr)
CA (1) CA2020552A1 (fr)
DE (1) DE59000955D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014017182A1 (fr) 2012-07-27 2014-01-30 Jx日鉱日石エネルギー株式会社 Composition d'huile lubrifiante, et procédé de lubrification de matière de glissement tout en empêchant l'élution de cuivre et de plomb
CN105874043B (zh) 2013-11-04 2022-05-24 巴斯夫欧洲公司 润滑剂组合物
WO2016156328A1 (fr) * 2015-03-31 2016-10-06 Shell Internationale Research Maatschappij B.V. Utilisation d'une composition lubrifiante comprenant un photostabilisant de type amine encombrée pour une meilleure propreté d'un piston dans un moteur à combustion interne

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3480635A (en) * 1966-09-28 1969-11-25 Universal Oil Prod Co N-piperidyl substituted phenylenediamines
CA1084035A (fr) * 1976-04-01 1980-08-19 Warren Lowe Additifs antioxydants pour huile de graissage
EP0253007A1 (fr) * 1986-07-15 1988-01-20 The B.F. GOODRICH Company Stabilisants pour polymères, polymères stabilisés, leur synthèse
US4398505A (en) * 1981-10-22 1983-08-16 Standard Oil Company (Indiana) Diesel fuel composition
US4607104A (en) * 1985-07-11 1986-08-19 Uniroyal Chemical Company, Inc. Process for the production of 2,2,6,6-tetraalkyl-4-piperidylamines
ATE92916T1 (de) * 1987-04-08 1993-08-15 Ciba Geigy Ag Schwefelhaltige verbindungen als antioxidantien fuer schmiermittel und elastomere.
IT1222394B (it) * 1987-07-30 1990-09-05 Ciba Geigy Spa Processo per la preparazione di 2,2,6,6 tetrametil 4 piperidilammine
DE3738736A1 (de) * 1987-11-14 1989-05-24 Basf Ag 4-formylaminopiperidinderivate und deren verwendung als stabilisatoren
US5073278A (en) * 1988-07-18 1991-12-17 Ciba-Geigy Corporation Lubricant composition

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CA2020552A1 (fr) 1991-01-08
DE59000955D1 (de) 1993-04-08
JPH0345695A (ja) 1991-02-27
EP0406825A1 (fr) 1991-01-09

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