WO2022084320A1 - Utilisation d'ester de dialkylène glycol pour diminuer le frottement dans les véhicules équipés de moteur hybride - Google Patents
Utilisation d'ester de dialkylène glycol pour diminuer le frottement dans les véhicules équipés de moteur hybride Download PDFInfo
- Publication number
- WO2022084320A1 WO2022084320A1 PCT/EP2021/078956 EP2021078956W WO2022084320A1 WO 2022084320 A1 WO2022084320 A1 WO 2022084320A1 EP 2021078956 W EP2021078956 W EP 2021078956W WO 2022084320 A1 WO2022084320 A1 WO 2022084320A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carbon atoms
- linear
- branched
- alkyl group
- groups
- Prior art date
Links
- -1 glycol ester Chemical class 0.000 title description 15
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 title description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 title description 3
- 239000000203 mixture Substances 0.000 claims abstract description 69
- 150000005690 diesters Chemical class 0.000 claims abstract description 25
- 125000004432 carbon atom Chemical group C* 0.000 claims description 62
- 230000001050 lubricating effect Effects 0.000 claims description 52
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 40
- 125000000217 alkyl group Chemical group 0.000 claims description 37
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 21
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 20
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 20
- 229910052705 radium Inorganic materials 0.000 claims description 17
- 229910052701 rubidium Inorganic materials 0.000 claims description 17
- 150000001875 compounds Chemical class 0.000 claims description 14
- 229920006395 saturated elastomer Polymers 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 150000002148 esters Chemical group 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 4
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 3
- 239000000314 lubricant Substances 0.000 abstract description 4
- 239000000654 additive Substances 0.000 description 27
- 239000003963 antioxidant agent Substances 0.000 description 15
- 239000003981 vehicle Substances 0.000 description 13
- 230000000996 additive effect Effects 0.000 description 12
- 239000002199 base oil Substances 0.000 description 9
- 239000003599 detergent Substances 0.000 description 9
- 150000002430 hydrocarbons Chemical group 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000003921 oil Substances 0.000 description 9
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- 239000007866 anti-wear additive Substances 0.000 description 6
- 229910052717 sulfur Inorganic materials 0.000 description 6
- 239000011593 sulfur Substances 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 239000003607 modifier Substances 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- 239000005069 Extreme pressure additive Substances 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 4
- 239000002826 coolant Substances 0.000 description 4
- 239000002270 dispersing agent Substances 0.000 description 4
- 239000010705 motor oil Substances 0.000 description 4
- 150000002989 phenols Chemical class 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 150000001735 carboxylic acids Chemical class 0.000 description 3
- 230000000994 depressogenic effect Effects 0.000 description 3
- 239000005078 molybdenum compound Substances 0.000 description 3
- 150000002752 molybdenum compounds Chemical class 0.000 description 3
- 229920000193 polymethacrylate Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 150000004982 aromatic amines Chemical class 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical group C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 239000002530 phenolic antioxidant Substances 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 229920013639 polyalphaolefin Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 1
- RREANTFLPGEWEN-MBLPBCRHSA-N 7-[4-[[(3z)-3-[4-amino-5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidin-2-yl]imino-5-fluoro-2-oxoindol-1-yl]methyl]piperazin-1-yl]-1-cyclopropyl-6-fluoro-4-oxoquinoline-3-carboxylic acid Chemical compound COC1=C(OC)C(OC)=CC(CC=2C(=NC(\N=C/3C4=CC(F)=CC=C4N(CN4CCN(CC4)C=4C(=CC=5C(=O)C(C(O)=O)=CN(C=5C=4)C4CC4)F)C\3=O)=NC=2)N)=C1 RREANTFLPGEWEN-MBLPBCRHSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 125000006539 C12 alkyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 125000004450 alkenylene group Chemical group 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 150000001449 anionic compounds Chemical class 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 229910052728 basic metal Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000004517 catalytic hydrocracking Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000012990 dithiocarbamate Chemical class 0.000 description 1
- 150000004659 dithiocarbamates Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002118 epoxides Chemical class 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229930195712 glutamate Natural products 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- AFFLGGQVNFXPEV-UHFFFAOYSA-N n-decene Natural products CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 1
- 125000005609 naphthenate group Chemical class 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 125000004437 phosphorous atom Chemical group 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 150000003873 salicylate salts Chemical class 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical class O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 125000001273 sulfonato group Chemical class [O-]S(*)(=O)=O 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
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
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/68—Esters
- C10M129/74—Esters of polyhydroxy compounds
-
- 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
- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
-
- 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
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
- C10M105/32—Esters
- C10M105/38—Esters of polyhydroxy compounds
-
- 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
-
- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
- C10M2219/068—Thiocarbamate metal salts
-
- 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
- C10N2030/54—Fuel economy
-
- 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
- C10N2040/25—Internal-combustion engines
Definitions
- the present invention relates to the use of dialkylene glycol ester in a lubricating composition for a vehicle equipped with a hybrid engine, to reduce the coefficient of friction during use of the engine at low speed and/or when cold.
- Hybrid vehicles present particular constraints, particularly at low engine speeds and when cold, i.e. over specific periods that can be qualified as the “start of cycle”, post-starting of the vehicle. On these cycles, the temperatures of the oils used in a hybrid vehicle are low, lower than those used in a vehicle comprising a heat engine and it is of essential interest to propose a formulation demonstrating gains over these particular periods of use.
- An object of the present invention is therefore to provide an additive for a lubricating composition for a vehicle equipped with a hybrid engine, to reduce the coefficient of friction during use of the engine at low speed.
- Another objective of the present invention is also to provide an additive for a lubricating composition for a vehicle equipped with a hybrid engine, to reduce the coefficient of friction when the engine is cold.
- R represent, independently of each other, a hydrogen atom or an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms, in particular a methyl, ethyl or propyl group, preferably methyl; s represents 1 or 2; n represents 1, 2 or 3, it being understood that when s is different from 1, the n may be identical or different;
- Ra and Rb which are identical or different, represent, independently of each other, hydrocarbon groups, saturated or unsaturated, linear or branched, having a linear sequence of 6 to 18 carbon atoms; provided that, when s equals 2 and n, which are identical, equals 2, at least one of the R groups represents an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms; and provided that, when s is 1 and n is 3, at least one of the R groups bonded to the carbon in the beta position of the oxygen atoms of the ester functions represents a hydrogen atom.
- the present invention also relates to a method for reducing the coefficient of friction during the use of a hybrid engine at low speed and/or cold comprising the lubrication of said engine with a lubricating composition comprising at least a base oil and a diester of formula (I)
- R represent, independently of each other, a hydrogen atom or an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms, in particular a methyl, ethyl or propyl group, preferably methyl; s represents 1 or 2; n represents 1, 2 or 3, it being understood that when s is different from 1, the n may be identical or different;
- Ra and Rb which are identical or different, represent, independently of each other, hydrocarbon groups, saturated or unsaturated, linear or branched, having a linear sequence of 6 to 18 carbon atoms; provided that, when s equals 2 and n, which are identical, equals 2, at least one of the groups R represents an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms; and provided that, when s is 1 and n is 3, at least one of the R groups linked to the carbon in the beta position of the oxygen atoms of the ester functions represents a hydrogen atom.
- low speed means a specific speed of the engine.
- Engine speed refers to the rotational speed of the engine and is expressed in revolutions per minute.
- the low speed is characterized by a number of revolutions per minute (rpm) of between 600 and 2000 rpm, preferably between 900 and 1500 rpm.
- the term “cold” means the use of the engines during start-up and during phase 1 of the WLTC cycle, the engine is then at a temperature below 50° C., preferably between 20 and 50°C, preferably between 25 and 40°C.
- the reduction in the coefficient of friction must be understood as a reduction compared to what would be observed with the lubricating composition not comprising the diester of the invention.
- n 2 or 3, preferably 2.
- At least one of the R groups represents an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms, preferably from 1 to 4 carbon atoms. carbon, more preferably methyl, ethyl or propyl, advantageously methyl.
- the diester of formula (I) according to the invention is a diester of the following formula (I'): R a -C(O)-O-([C(R)2]nO)-([C(R')2]ni-O)slC(O)-R b
- R and R' represent, independently of each other, a hydrogen atom or an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms, preferably a methyl, ethyl or propyl group, preferably a methyl group ; s represents 1 or 2; n represents 2; m represents 2;
- Ra and Rb which are identical or different, represent, independently of each other, hydrocarbon groups, saturated or unsaturated, linear or branched, having a linear sequence of 6 to 18 carbon atoms; provided that, when s is 2, at least one of the groups R or R' represents an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms.
- At least one of the groups R or R' in the diester of formula (I') represents an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms, preferably from 1 to 4 carbon atoms, preferably methyl, ethyl, or propyl, advantageously methyl.
- Ra and Rb have a linear sequence of 7 to 14 carbon atoms, preferably 8 to 12 carbon atoms, more particularly 8 to 11 carbon atoms. carbon, in particular 9 or 11 carbon atoms.
- s, in formulas (I) or (I'), represents 2.
- the diester of the invention is preferably a compound of formula (Ia): in which :
- R and R' represent, independently of each other, a hydrogen atom or an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms, preferably methyl, ethyl or propyl, preferably methyl; - n represents 2;
- Ra and Rb which are identical or different, represent, independently of each other, hydrocarbon groups, saturated or unsaturated, linear or branched, having a linear sequence of 6 to 18 carbon atoms; provided that at least one of the groups R or R' represents an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms, preferably methyl, ethyl or propyl, preferably methyl.
- At least one of the groups R represents an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms, preferably methyl, ethyl or propyl, preferably methyl; and at least one of R' represents an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms, preferably methyl, ethyl or propyl, preferably methyl.
- one of the groups R represents an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms, preferably methyl, ethyl or propyl, preferably methyl; and one of R' represents an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms, preferably methyl, ethyl or propyl, preferably methyl; the other groups R and R' representing hydrogen atoms.
- the diester of the invention is a compound of formula (l”a)
- one of the groups R 1 and R 2 represents an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms, the other representing a hydrogen atom
- one of the R 3 and R 4 groups represents an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms, the other representing a hydrogen atom
- one of the R 3 and R 4 groups represents an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms, the other representing a hydrogen atom
- Ra and Rb identical or different, are as defined previously.
- one of the groups R 1 and R 2 represents a methyl, ethyl or propyl group, preferably methyl, the other representing a hydrogen atom
- one of the R 3 and R 4 groups represents a methyl, ethyl or propyl group, preferably methyl, the other representing a hydrogen atom.
- R represent, independently of each other, a hydrogen atom or an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms, preferably methyl, ethyl or propyl, preferably methyl;
- Ra and Rb which are identical or different, represent, independently of each other, hydrocarbon groups, saturated or unsaturated, linear or branched, having a linear sequence of 6 to 18 carbon atoms.
- At least one of R represents an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms, preferably methyl, ethyl or propyl, preferably methyl.
- one of the R groups represents an alkyl group, linear or branched, comprising from 1 to 5 carbon atoms, preferably methyl, ethyl or propyl, preferably methyl, the others represent hydrogen atoms.
- linear sequence of x to y carbon atoms a carbon chain, saturated or unsaturated, preferably saturated, comprising from x to y carbon atoms, one after the other. others, the carbon atoms possibly present at the level of the branches of the carbon chain not being taken into account in the number of carbon atoms (x-y) constituting the linear sequence.
- Ra and Rb which are identical or different, are derived from vegetable, animal or petroleum.
- Ra and Rb which are identical or different, represent saturated groups.
- Ra and Rb which are identical or different, represent linear groups.
- Ra and Rb which are identical or different, represent saturated linear hydrocarbon groups comprising from 6 to 18 carbon atoms, preferably from 7 to 17 carbon atoms, in particular from 7 to 14 carbon atoms, preferably from 8 to 12 carbon atoms. carbon, in particular 9 or 12 carbon atoms.
- Ra and Rb which are identical or different, represent alkyl groups saturated linear atoms comprising from 6 to 18 carbon atoms, preferably from 7 to 17 carbon atoms, in particular from 7 to 14 carbon atoms, preferably from 8 to 12 carbon atoms, in particular 9 or 12 carbon atoms.
- Ra and Rb are identical.
- diesters of formula (I) may be commercially available or prepared according to synthetic methods described in the literature and known to those skilled in the art, in particular according to methods described in WO201925446.
- the diester of formula (I) is added in a proportion of 1 to 40% by mass relative to the total mass of the lubricating composition, preferably from 10 to 30%.
- the base oil used in the lubricating compositions of the invention may be oils of mineral or synthetic origin belonging to groups I to V according to the classes defined by the API classification (or their equivalents according to the ATIEL classification (Table 1) or mixtures thereof.
- the mineral base oils of the invention include any type of base oil obtained by atmospheric and vacuum distillation of crude oil, followed by stripping operations such as solvent extraction, deasphalting, solvent dewaxing, hydrotreating, hydrocracking, hydroisomerization and hydrofinishing.
- Blends of synthetic and mineral oils can also be used.
- the base oils of the lubricating compositions according to the invention can also be chosen from synthetic oils, such as certain esters of carboxylic acids and alcohols, and polyalphaolefins.
- the polyalphaolefins used as base oil are for example obtained from monomers comprising from 4 to 32 carbon atoms, for example from octene or decene, and for which the viscosity at 100° C. is between 1 .5 and 15 mm2.s-1 according to the ASTM D445 standard. Their average molar mass is generally between 250 and 3000 according to the ASTM D5296 standard.
- the lubricating composition according to the invention may comprise at least 50% by weight of base oil relative to the total weight of the composition. More advantageously, the lubricating composition according to the invention comprises at least 60% by weight, or even at least 70% by weight, of base oils relative to the total weight of the lubricating composition. More preferably, the lubricating composition according to the invention comprises from 75 to 97% by weight of base oils relative to the total weight of the composition.
- composition of the invention may also comprise at least one additive.
- the preferred additives for the lubricating composition according to the invention are chosen from detergent additives, the friction modifier additives differ from the molybdenum compounds defined above, extreme pressure additives, dispersants, pour point activators, anti- foam, thickeners and mixtures thereof.
- the lubricating compositions according to the invention comprise at least one extreme pressure additive, or a mixture.
- Anti-wear additives and extreme pressure additives protect surface friction by forming a protective film adsorbed on its surfaces.
- the anti-wear additives are chosen from additives comprising phosphorus and sulfur such as metal alkylthiophosphate, in particular zinc alkylthiophosphate, and more precisely zinc dialkyldithiophosphate or ZnDTP.
- Preferred compounds are of the formula Zn((SP(S)(OR)(OR'))2, in which R and R′, identical or different, independently represents an alkyl group, preferably an alkyl group comprising from 1 to 18 carbon atoms.
- Amine phosphates are also anti-wear additives which can be used in the lubricating compositions of the invention.
- the phosphorus atoms provided by these additives can act as a poison for automotive catalytic systems since they generate ash. It is possible to minimize these effects by substituting part of the amine phosphates with additives that do not provide phosphorus, such as, for example, polysulfides, in particular olefins containing sulfur.
- the lubricating compositions according to the invention may comprise from 0.01 to 6% by weight, preferably from 0.05 to 4% by weight, more preferably from 0.1 to 2% by weight relative to the total weight of lubricating composition, anti-wear and extreme pressure additives.
- the lubricating compositions according to the invention comprise from 0.01 to 6% by weight, preferably from 0.05 to 4% by weight, more preferably from 0.1 to 2% by weight relative to the total weight of composition lubricant, anti-wear additives (or anti-wear compound).
- compositions according to the invention may comprise at least one friction modifier additive different from the molybdenum compounds of the invention.
- the friction modifier additives can in particular be chosen from compounds providing metallic elements and ashless compounds.
- compounds providing metallic elements mention may be made of complexes of transition metals such as Mo, Sb, Sn, Fe, Cu, Zn for which the ligands may be hydrocarbon compounds comprising oxygen, nitrogen , sulfur or phosphorus.
- Ashless friction modifier additives are generally of organic origin or may be selected from fatty acid polyol monoesters, alkoxylated amines, alkoxylated fatty amines, fatty epoxides, fatty epoxide borates, fatty amines fats or glycerol acid esters.
- the fatty compounds comprising at least one hydrocarbon group comprising from 10 to 24 carbon atoms.
- the lubricating composition according to the invention may comprise from 0.01 to 2% by weight or from 0.01 to 5% by weight, preferably from 0.1 to 1.5% by weight or from 0.1 to 2 % by weight relative to the total weight of the lubricating composition, of friction modifier additive different from the molybdenum compounds according to the invention.
- the lubricating composition according to the invention can comprise at least one antioxidant additive.
- Antioxidant additives generally retard degradation of the lubricating composition. This degradation is most often expressed by the formation of deposits, by the presence of sludge or by an increase in the viscosity of the lubricating composition.
- Antioxidant additives generally act as free radical inhibitors or destructive hydroperoxide inhibitors.
- antioxidants of the phenolic type, antioxidants of the amine type, antioxidants containing sulfur and phosphorus. Some of these antioxidants, for example those comprising sulfur and phosphorus, can generate ash.
- the phenolic antioxidant additives may be ash-free or may be in the form of neutral or basic metal salts.
- the antioxidant additives may in particular be chosen from sterically hindered phenols, esters of sterically hindered phenols, sterically hindered phenols comprising a thioether bridge, diphenylamines, diphenylamines substituted with at least one C1 to C12 alkyl group, N,N '-dialkyl-aryl-diamines and mixtures thereof.
- the sterically hindered phenols are chosen from compounds comprising a phenol group for which at least one of the carbon atoms in the vicinity of the carbon atom carrying the alcohol function is substituted by at least one alkyl group in C1 to C10, preferably C1 to C6 alkyl, preferably C4 alkyl, preferably tert-butyl.
- Amine compounds are another class of antioxidant additives which may be used, optionally in combination with phenolic antioxidant additives.
- amine compounds are aromatic amines, for example aromatic amines of formula NRaRbRc in which Ra represents an aliphatic group or an optionally substituted aromatic group, Rb represents an optionally substituted aromatic group, Rc represents a hydrogen atom, an alkyl group, an aryl group or a group of a group of the formula RdS(O)zRe in which Rd represents an alkylene or alkenylene group, Re represents an alkyl group, an alkenyl group or an aryl group and z represents 0, 1 or 2.
- Sulfur-containing alkyl phenols or their alkali or alkaline earth metal salts can also be used as antioxidant additives.
- antioxidant additives are compounds comprising copper, for example copper thio- or dithio-phosphate, salts of copper and carboxylic acids, dithiocarbamates, sulphonates, phenates, copper acetylaceto nates . Copper I and II salts, succinic acid or anhydride salts can also be used.
- the lubricating compositions according to the invention can also comprise any type of antioxidant known to those skilled in the art.
- the lubricating composition comprises at least one ash-free antioxidant additive.
- the lubricating composition according to the invention comprises from 0.1 to 2% by weight relative to the total weight of the composition, of at least one antioxidant additive.
- the lubricating composition according to the invention may also comprise at least one detergent additive.
- Detergent additives generally reduce the formation of deposits on the surface of metal parts by dissolving secondary products of oxidation and combustion.
- detergent additives which can be used in the lubricating compositions according to the invention are generally known to those skilled in the art.
- Detergent additives can be anionic compounds comprising a long lipophilic hydrocarbon chain and a hydrophobic head.
- the associated cation can be a metal cation of an alkali or alkaline earth metal.
- the detergent additives are preferably chosen from alkali metal or alkaline earth metal salts of carboxylic acid, sulfonates, salicylates, naphthenates, as well as phenate salts.
- the alkali and alkaline-earth metals are preferably calcium, magnesium, sodium or barium.
- metal salts generally comprise the metal in stoichiometric quantity or in excess, that is to say in a content greater than the stoichiometric content.
- overbased detergents the excess metal implying the overbased nature of the detergent additive is usually in the form of an oil-insoluble metal salt, eg carbonate, hydroxide, oxalate, acetate, glutamate, preferably carbonate.
- the lubricating composition according to the invention may comprise from 0.5 to 8% or from 2 to 4% by weight of overbased detergent additive relative to the total weight of the lubricating composition.
- the lubricating composition according to the invention may also comprise a pour point depressant additive.
- the pour point depressant additive By slowing down the formation of paraffin crystals, the pour point depressant additive generally improves the cold behavior of the lubricating composition according to the invention.
- a pour point depressant additive mention may be made of alkyl polymethacrylates, polyacrylates, polyarylamides, polyalkylphenols, polyalkylnaphthalene, alkyl polystyrenes.
- the lubricating composition according to the invention can also comprise a dispersing agent.
- the dispersing agents can be chosen from Mannich bases, succinimides and their derivatives.
- the lubricating composition according to the invention may comprise from 0.2 to 10% by weight of dispersing agent relative to the total weight of lubricating composition.
- the lubricating composition according to the invention may also further comprise at least one other additional polymer improving the viscosity index.
- additional polymer improving the viscosity index mention may be made of polymeric esters, homopolymers or copolymers, hydrogenated or not, of styrene, butadiene and isoprene, polymethacrylates (PMA).
- PMA polymethacrylates
- the lubricating composition according to the invention may comprise from 1 to 15% by weight, relative to the total weight of the lubricating composition, of additive improving the viscosity index.
- the lubricating composition according to the invention may also comprise at least one thickening agent.
- the lubricating composition according to the invention may also comprise an antifoaming agent and a demulsifying agent.
- the lubricating composition of the invention also comprises at least one anti-wear agent, in particular based on Zinc, in particular ZnDTP.
- vehicles with hybrid motorization or vehicles equipped with a hybrid engine are understood to mean vehicles using two separate energy sources for their operation.
- hybrid vehicles combine a thermal internal combustion engine and an electric motor, said electric motor participating in the traction of the vehicle.
- the invention also relates to a method for reducing friction during the use of a hybrid engine at low speed and/or when cold, comprising the addition to the lubricating composition of said engine of a diester according to the invention.
- the invention also relates to a method for reducing friction during the use of a hybrid engine at low speed and/or when cold, comprising the lubrication of said engine with a lubricating composition comprising a diester according to the invention.
- Example 1 Preparation of lubricating compositions
- a PMF bench (Mean Frictional Pressure) is used to measure the friction of an engine.
- the engine is driven using a generator and the torque that this generator must provide is measured (this torque is thus the image of engine friction).
- the engine therefore does not burn any fuel, it is just driven exactly as if it were in the engine brake life situation of a vehicle.
- the test consists of drawing up a complete map of engine friction according to the different rotation speeds and the different water and oil temperatures.
- the friction map created at the end of the test will consist of 8 engine speeds and 4 temperatures.
- This map is then compared to that of a so-called reference oil which will be measured before and after the test of the candidate oil in order to qualify any drift of the test means and to integrate it into the interpretation of the results.
- the so-called reference oil has the following composition:
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Lubricants (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP21798327.9A EP4232534A1 (fr) | 2020-10-20 | 2021-10-19 | Utilisation d'ester de dialkylène glycol pour diminuer le frottement dans les véhicules équipés de moteur hybride |
US18/032,599 US20230383210A1 (en) | 2020-10-20 | 2021-10-19 | Use of dialkylene glycol ester to reduce friction in vehicles with hybrid engines |
CN202180071897.5A CN116472330A (zh) | 2020-10-20 | 2021-10-19 | 二亚烷基二醇酯用于减少混合动力汽车的摩擦的用途 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FRFR2010736 | 2020-10-20 | ||
FR2010736A FR3115291B1 (fr) | 2020-10-20 | 2020-10-20 | Utilisation d’ester de dialkylène glycol pour diminuer le frottement dans les véhicules équipés de moteur hybride |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022084320A1 true WO2022084320A1 (fr) | 2022-04-28 |
Family
ID=74125426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2021/078956 WO2022084320A1 (fr) | 2020-10-20 | 2021-10-19 | Utilisation d'ester de dialkylène glycol pour diminuer le frottement dans les véhicules équipés de moteur hybride |
Country Status (5)
Country | Link |
---|---|
US (1) | US20230383210A1 (fr) |
EP (1) | EP4232534A1 (fr) |
CN (1) | CN116472330A (fr) |
FR (1) | FR3115291B1 (fr) |
WO (1) | WO2022084320A1 (fr) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015078707A1 (fr) * | 2013-11-26 | 2015-06-04 | Basf Se | Utilisation d'esters de polyalkylène glycol dans des compositions d'huile lubrifiante |
WO2019025446A1 (fr) | 2017-08-03 | 2019-02-07 | Total Marketing Services | Composition lubrifiante comprenant un diester |
FR3083244A1 (fr) * | 2018-07-02 | 2020-01-03 | Total Marketing Services | Composition pour refroidir et lubrifier un systeme de propulsion d'un vehicule electrique ou hybride |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3686243A (en) * | 1970-11-12 | 1972-08-22 | Texaco Inc | Process for preparation of zinc dialkyl dithiophosphates |
CN102459541A (zh) * | 2009-06-12 | 2012-05-16 | 赢创罗曼克斯添加剂有限公司 | 具有改进的粘度指数的流体 |
US20190106651A1 (en) * | 2017-10-06 | 2019-04-11 | Chevron Japan Ltd. | Passenger car lubricating oil compositions for fuel economy |
-
2020
- 2020-10-20 FR FR2010736A patent/FR3115291B1/fr active Active
-
2021
- 2021-10-19 CN CN202180071897.5A patent/CN116472330A/zh active Pending
- 2021-10-19 EP EP21798327.9A patent/EP4232534A1/fr active Pending
- 2021-10-19 WO PCT/EP2021/078956 patent/WO2022084320A1/fr active Application Filing
- 2021-10-19 US US18/032,599 patent/US20230383210A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015078707A1 (fr) * | 2013-11-26 | 2015-06-04 | Basf Se | Utilisation d'esters de polyalkylène glycol dans des compositions d'huile lubrifiante |
WO2019025446A1 (fr) | 2017-08-03 | 2019-02-07 | Total Marketing Services | Composition lubrifiante comprenant un diester |
FR3083244A1 (fr) * | 2018-07-02 | 2020-01-03 | Total Marketing Services | Composition pour refroidir et lubrifier un systeme de propulsion d'un vehicule electrique ou hybride |
Also Published As
Publication number | Publication date |
---|---|
US20230383210A1 (en) | 2023-11-30 |
EP4232534A1 (fr) | 2023-08-30 |
FR3115291A1 (fr) | 2022-04-22 |
FR3115291B1 (fr) | 2023-11-17 |
CN116472330A (zh) | 2023-07-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3662041B1 (fr) | Composition lubrifiante comprenant un diester | |
FR3083244A1 (fr) | Composition pour refroidir et lubrifier un systeme de propulsion d'un vehicule electrique ou hybride | |
EP3938459A1 (fr) | Utilisation d'un ester dans une composition de refroidissement | |
WO2018210829A1 (fr) | Utilisation de compositions lubrifiantes pour ameliorer la proprete d'un moteur de vehicule 4-temps | |
EP3877488B1 (fr) | Utilisation d'un diester pour ameliorer les proprietes anti-usure d'une composition lubrifiante | |
FR3092335A1 (fr) | Composition lubrifiante pour prévenir le pré-allumage | |
WO2022084320A1 (fr) | Utilisation d'ester de dialkylène glycol pour diminuer le frottement dans les véhicules équipés de moteur hybride | |
EP3990588A1 (fr) | Utilisation d'un composé de type amine aromatique ou phénol stériquement encombré à titre d'additif anticorrosion dans une composition lubrifiante destinée à un système de propulsion d'un véhicule électrique ou hybride | |
WO2020201126A1 (fr) | Utilisation d'une composition lubrifiante pour transmission | |
FR3092337A1 (fr) | Composition lubrifiante pour prévenir le pré-allumage | |
WO2022008603A1 (fr) | Utilisation d'ester de dialkylène glycol pour augmenter la résistance à l'oxydation d'une composition lubrifiante | |
WO2024013131A1 (fr) | Utilisation d'un diester dans une composition de refroidissement et/ou de lubrification d'un véhicule électrique ou hybride | |
WO2024052415A1 (fr) | Composition lubrifiante avec des propriétés fuel eco améliorées dans les véhicules hybrides | |
FR3108914A1 (fr) | Composition lubrifiante comprenant un composé 2,5-dimercapto-1,3,4-thiadiazole alkyl polycarboxylate | |
EP4185674A1 (fr) | Composition lubrifiante pour transmission automobile | |
WO2023061899A1 (fr) | Carbodiimide comme additif dans des lubrifiants destinés à des systèmes de motorisation pour ameliorer la compatibilite avec les elastomeres | |
WO2024008675A1 (fr) | Utilisation d'un additif anti-usure pour améliorer la conductivité thermique d'un fluide de refroidissement pour véhicule électrique | |
WO2023217874A1 (fr) | Composition lubrifiante présentant une stabilité d'émulsion améliorée | |
EP4185675A1 (fr) | Composition lubrifiante pour transmission automobile aux propriétés anticorrosion améliorées | |
FR3121447A1 (fr) | Lubrification de moteur de véhicule hybride rechargeable et véhicule hybride comprenant un prolongateur d’autonomie | |
WO2024056827A1 (fr) | Utilisation d'un monoester dans une composition lubrifiante pour transmissions de | |
FR3137918A1 (fr) | Composition lubrifiante à base de diester | |
FR3091874A1 (fr) | Complexe dinucléaire de molybdène et son utilisation dans des compositions lubrifiantes |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21798327 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18032599 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202180071897.5 Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2021798327 Country of ref document: EP Effective date: 20230522 |