EP4185671A1 - Composition lubrifiante pour transmission automobile stable à l'oxydation - Google Patents
Composition lubrifiante pour transmission automobile stable à l'oxydationInfo
- Publication number
- EP4185671A1 EP4185671A1 EP21746441.1A EP21746441A EP4185671A1 EP 4185671 A1 EP4185671 A1 EP 4185671A1 EP 21746441 A EP21746441 A EP 21746441A EP 4185671 A1 EP4185671 A1 EP 4185671A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- lubricating composition
- alkyl
- chosen
- substituted
- 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.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 161
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 111
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 62
- 239000002270 dispersing agent Substances 0.000 claims abstract description 48
- 229920000642 polymer Polymers 0.000 claims abstract description 43
- 239000002199 base oil Substances 0.000 claims abstract description 37
- -1 methoxy alkyl glycol ethers Chemical class 0.000 claims abstract description 32
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 30
- 239000002530 phenolic antioxidant Substances 0.000 claims abstract description 23
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 20
- 125000000392 cycloalkenyl group Chemical group 0.000 claims abstract description 15
- 125000000753 cycloalkyl group Chemical group 0.000 claims abstract description 14
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 14
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 12
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 125000003837 (C1-C20) alkyl group Chemical group 0.000 claims abstract description 9
- 125000002947 alkylene group Chemical group 0.000 claims abstract description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 6
- 239000001257 hydrogen Substances 0.000 claims abstract description 6
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims abstract 6
- 229910052698 phosphorus Inorganic materials 0.000 claims description 32
- 239000011574 phosphorus Substances 0.000 claims description 30
- 239000000654 additive Substances 0.000 claims description 29
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 28
- 125000000923 (C1-C30) alkyl group Chemical group 0.000 claims description 26
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 26
- 229910052796 boron Inorganic materials 0.000 claims description 26
- 230000005540 biological transmission Effects 0.000 claims description 21
- 230000003078 antioxidant effect Effects 0.000 claims description 20
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 20
- 229910052757 nitrogen Inorganic materials 0.000 claims description 19
- 239000003599 detergent Substances 0.000 claims description 16
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical group C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 13
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical class O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 claims description 13
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 12
- 229920002367 Polyisobutene Polymers 0.000 claims description 11
- 150000002148 esters Chemical group 0.000 claims description 11
- 239000002518 antifoaming agent Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 9
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical class C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 claims description 9
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 8
- 125000003342 alkenyl group Chemical group 0.000 claims description 7
- 125000004185 ester group Chemical group 0.000 claims description 6
- 239000013538 functional additive Substances 0.000 claims description 6
- 150000002989 phenols Chemical class 0.000 claims description 5
- 239000000314 lubricant Substances 0.000 claims description 4
- 239000004034 viscosity adjusting agent Substances 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 claims 1
- 150000001412 amines Chemical class 0.000 abstract description 6
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 31
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 28
- 239000007866 anti-wear additive Substances 0.000 description 18
- 230000003647 oxidation Effects 0.000 description 16
- 238000007254 oxidation reaction Methods 0.000 description 16
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 14
- 229910052717 sulfur Inorganic materials 0.000 description 13
- 238000000034 method Methods 0.000 description 11
- 239000011593 sulfur Substances 0.000 description 11
- 150000003839 salts Chemical class 0.000 description 9
- 125000003118 aryl group Chemical group 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- 235000019198 oils Nutrition 0.000 description 8
- 229920013639 polyalphaolefin Polymers 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- BTHAQRDGBHUQMR-UHFFFAOYSA-N [S]P(=O)=O Chemical compound [S]P(=O)=O BTHAQRDGBHUQMR-UHFFFAOYSA-N 0.000 description 6
- 230000000996 additive effect Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 125000004434 sulfur atom Chemical group 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 239000005864 Sulphur Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 150000001735 carboxylic acids Chemical class 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 150000002009 diols Chemical class 0.000 description 4
- 125000005842 heteroatom Chemical group 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229920001515 polyalkylene glycol Polymers 0.000 description 4
- 229920005652 polyisobutylene succinic anhydride Polymers 0.000 description 4
- 229960002317 succinimide Drugs 0.000 description 4
- 150000001298 alcohols Chemical class 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000000994 depressogenic effect Effects 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- 235000021317 phosphate Nutrition 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000004901 spalling Methods 0.000 description 3
- 125000001424 substituent group Chemical group 0.000 description 3
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- RYYWUUFWQRZTIU-UHFFFAOYSA-N Thiophosphoric acid Chemical class OP(O)(S)=O RYYWUUFWQRZTIU-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- MNVKBJFKKJDBGR-UHFFFAOYSA-N butylsulfanylphosphonous acid Chemical compound CCCCSP(O)O MNVKBJFKKJDBGR-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- FQERTQNSHXPBQS-UHFFFAOYSA-N dodecylsulfanylphosphonous acid Chemical compound CCCCCCCCCCCCSP(O)O FQERTQNSHXPBQS-UHFFFAOYSA-N 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 125000002950 monocyclic group Chemical group 0.000 description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 description 2
- 125000004437 phosphorous atom Chemical group 0.000 description 2
- 229920001281 polyalkylene Polymers 0.000 description 2
- 125000003367 polycyclic group Chemical group 0.000 description 2
- 235000013824 polyphenols Nutrition 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000001542 size-exclusion chromatography Methods 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 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
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000005749 Copper compound Substances 0.000 description 1
- 239000005069 Extreme pressure additive Substances 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
- LFPIHDQZHBXSGD-UHFFFAOYSA-N P(=O)(=O)[B] Chemical class P(=O)(=O)[B] LFPIHDQZHBXSGD-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- ACIAHEMYLLBZOI-ZZXKWVIFSA-N Unsaturated alcohol Chemical compound CC\C(CO)=C/C ACIAHEMYLLBZOI-ZZXKWVIFSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 125000004450 alkenylene group Chemical group 0.000 description 1
- 125000005600 alkyl phosphonate group Chemical group 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- 150000001449 anionic compounds Chemical class 0.000 description 1
- 150000004982 aromatic amines Chemical class 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
- 230000008901 benefit Effects 0.000 description 1
- LMZSPXZNYGLPAV-UHFFFAOYSA-N butoxy-dihydroxy-sulfanylidene-$l^{5}-phosphane Chemical compound CCCCOP(O)(O)=S LMZSPXZNYGLPAV-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004517 catalytic hydrocracking Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 150000001880 copper compounds Chemical class 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- CAVXVJGHUYVTRI-UHFFFAOYSA-N dihydroxy-octoxy-sulfanylidene-$l^{5}-phosphane Chemical compound CCCCCCCCOP(O)(O)=S CAVXVJGHUYVTRI-UHFFFAOYSA-N 0.000 description 1
- ORDPXYVBSFJMAW-UHFFFAOYSA-N diphenoxy(phenylsulfanyl)phosphane Chemical compound C=1C=CC=CC=1OP(SC=1C=CC=CC=1)OC1=CC=CC=C1 ORDPXYVBSFJMAW-UHFFFAOYSA-N 0.000 description 1
- 239000012990 dithiocarbamate Substances 0.000 description 1
- 150000004659 dithiocarbamates Chemical class 0.000 description 1
- ISWBBUXCFWZBKC-UHFFFAOYSA-N dodecoxy-dihydroxy-sulfanylidene-$l^{5}-phosphane Chemical compound CCCCCCCCCCCCOP(O)(O)=S ISWBBUXCFWZBKC-UHFFFAOYSA-N 0.000 description 1
- 125000003438 dodecyl 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
- 230000000694 effects Effects 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 229930195712 glutamate Natural products 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 125000004356 hydroxy functional group Chemical group O* 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 125000001421 myristyl group Chemical group [H]C([*])([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])C([H])([H])[H] 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
- 125000001624 naphthyl group Chemical group 0.000 description 1
- DSKNRIRUAYEWCO-UHFFFAOYSA-N octylsulfanylphosphonous acid Chemical compound CCCCCCCCSP(O)O DSKNRIRUAYEWCO-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([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])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 125000002958 pentadecyl group Chemical group [H]C([*])([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])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000008301 phosphite esters Chemical class 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- 150000003009 phosphonic acids Chemical class 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- TYQTYRXEMJXFJG-UHFFFAOYSA-N phosphorothious acid Chemical compound OP(O)S TYQTYRXEMJXFJG-UHFFFAOYSA-N 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000007670 refining Methods 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
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction 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
- 150000003568 thioethers Chemical class 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- PPEZWDDRWXDXOQ-UHFFFAOYSA-N tributoxy(sulfanylidene)-$l^{5}-phosphane Chemical compound CCCCOP(=S)(OCCCC)OCCCC PPEZWDDRWXDXOQ-UHFFFAOYSA-N 0.000 description 1
- 125000002889 tridecyl group Chemical group [H]C([*])([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])[H] 0.000 description 1
- 150000005691 triesters Chemical class 0.000 description 1
- IKXFIBBKEARMLL-UHFFFAOYSA-N triphenoxy(sulfanylidene)-$l^{5}-phosphane Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=S)OC1=CC=CC=C1 IKXFIBBKEARMLL-UHFFFAOYSA-N 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
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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
- 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
- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
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- 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
- C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
- C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
- C10M137/04—Phosphate esters
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- 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
- C10M129/76—Esters containing free hydroxy or carboxyl groups
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- 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
- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M133/12—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to a carbon atom of a six-membered aromatic ring
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- 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
- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/38—Heterocyclic nitrogen compounds
- C10M133/44—Five-membered ring containing nitrogen and carbon only
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- 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
- C10M135/28—Thiols; Sulfides; Polysulfides containing sulfur atoms bound to a carbon atom of a six-membered aromatic ring
- C10M135/30—Thiols; Sulfides; Polysulfides containing sulfur atoms bound to a carbon atom of a six-membered aromatic ring containing hydroxy groups; Derivatives thereof
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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
- C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
- C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
- C10M137/04—Phosphate esters
- C10M137/10—Thio derivatives
- C10M137/105—Thio derivatives not containing metal
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- 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
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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
- C10M153/00—Lubricating compositions characterised by the additive being a macromolecular compound containing phosphorus
- C10M153/04—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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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
- C10M155/00—Lubricating compositions characterised by the additive being a macromolecular compound containing atoms of elements not provided for in groups C10M143/00 - C10M153/00
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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
- C10M155/00—Lubricating compositions characterised by the additive being a macromolecular compound containing atoms of elements not provided for in groups C10M143/00 - C10M153/00
- C10M155/04—Monomer containing boron
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- 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
- C10M157/00—Lubricating compositions characterised by the additive being a mixture of two or more macromolecular compounds covered by more than one of the main groups C10M143/00 - C10M155/00, each of these compounds being essential
- C10M157/08—Lubricating compositions characterised by the additive being a mixture of two or more macromolecular compounds covered by more than one of the main groups C10M143/00 - C10M155/00, each of these compounds being essential at least one of them being a phosphorus-containing compound
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- 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
- C10M161/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a non-macromolecular compound, each of these compounds being essential
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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
- 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
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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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/003—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions used as base material
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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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/284—Esters of aromatic monocarboxylic acids
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/26—Amines
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/30—Heterocyclic compounds
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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
- 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
- C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
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- 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
- C10M2223/047—Thioderivatives not containing metallic elements
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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
- 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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- 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
- C10M2225/00—Organic macromolecular compounds containing phosphorus as ingredients in lubricant compositions
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- 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
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
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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
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/04—Molecular weight; Molecular weight distribution
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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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/04—Detergent property or dispersant property
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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
- 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
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- 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
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- 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
- C10N2030/40—Low content or no content compositions
- C10N2030/42—Phosphor free or low phosphor content compositions
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- 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
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
Definitions
- the present invention relates to the field of lubricating compositions, in particular for motor vehicles, in particular for lubricating the transmission components of motor vehicles, in particular the gears of the transmissions of thermal or electric vehicles.
- Flaking occurs after a long time of aging, preceding visible deterioration.
- the mechanisms are not well known, but the phenomenon starts with the initiation of cracks at a certain depth under the surface, these cracks propagate, and when cracks normal to the surface are created, scales are detached suddenly.
- the prevention of this phenomenon passes by a reduction of the stresses of contact thanks to an appropriate geometry of the parts, and by the reduction of the frictions, by avoiding adhesion.
- the lubricating composition intervenes in this prevention process, mainly through the physico-chemical reactivity of its additives.
- Sulphur, phosphorus or borate anti-wear and extreme pressure additives are generally added to give transmission oils protective properties against chipping.
- the other additives present in the lubricating composition can also have an impact, positive or negative, on the propagation of cracks inside the parts and therefore on the spalling phenomenon.
- the lubricating composition used in the transmission components may deteriorate, in particular under the effect of oxidation.
- Document WO 2010/126760 describes a lubricating composition comprising a base oil and a polymer of phosphorus ester type comprising the product of the condensation reaction of an acid or phosphorus ester with a diol where the two hydroxy functions are separated by a chain. from 4 to 100 carbon atoms.
- Document WO 2016/089565 describes a lubricating composition comprising a base oil and a phosphite ester composition comprising the product of the condensation reaction of a phosphorus acid or ester with at least two diols.
- the present invention relates to a lubricating composition
- a lubricating composition comprising:
- antioxidants chosen from amino antioxidants, phenolic antioxidants substituted by one or more linear or branched alkyl groups having from 1 to 30 carbon atoms, and mixtures thereof, and
- each of R 1 , R 2 , R 3 and R 4 can be chosen independently of each other from C1-C20 alkyl, C3-C22 alkenyl, C6-C40 cycloalkyl, C7-C40 cycloalkenyl, methoxy C1-20 and Y-OH alkyl glycol ethers (serving as terminal group);
- - Y is chosen from C2-C40 alkylene, C2-C40 alkyl lactone, -R 7 - N(R 8 )-R 9 -, in which R 7 , R 8 and R 9 are independently of each other chosen from hydrogen, C1-C20 alkyl, C3-C22 alkenyl, C6-C40 cycloalkyl, C7-C40 cycloalkenyl, C1-20 methoxy alkyl glycol ethers,
- - m is an integer ranging from 2 to 100
- - n is an integer ranging from 1 to 1000.
- the polymer of formula (I) has a weight-average molecular mass of less than 30,000 g/mol.
- the phosphite polymer represents from 0.01 to 10% by weight of the total weight of the lubricating composition.
- the borated dispersant is chosen from borated and optionally phosphated succinimides, preferably borated polyisobutylene succinimides.
- the lubricating composition comprises from 5 to 9150 ppm by weight of phosphorus, preferably from 5 to 4500 ppm by weight of phosphorus, relative to the total weight of the lubricating composition.
- the lubricating composition comprises:
- the amino antioxidant(s) are chosen from diphenylamines, diphenylamines substituted with at least one C1-C30 alkyl group, N,N'-dialkyl-aryl-diamines, and/or
- the phenolic antioxidant(s) substituted by one or more linear or branched C1-C30 alkyl groups are chosen from triphenylphosphites whose phenyl groups are substituted by at least one linear or branched C1-C30 alkyl group, phenols substituted by two C1-C30 alkyl groups and a C1-C30 ester group, the compounds comprising two phenols each substituted by at least one C1-C30 alkyl group and connected by a thioether bridge optionally having an ester function on each side of said bridge.
- the lubricating composition comprises: from 70 to 99% by weight of one or more base oils, and from 0.01 to 10% by weight of phosphite polymer, from 0.01 to 5% by weight of boron dispersant(s) ), from 0.01 to 5% by weight of the mixture of at least one amino antioxidant and at least one phenolic antioxidant substituted with one or more linear or branched C1-C30 alkyl groups; optionally from 1 to 30% by weight of one or more functional additives, preferably chosen from viscosity index improver additives, antioxidant additives, antifoam additives, non-boronated dispersants, detergents, anti-wear additives , the viscosity modifier additives, and their mixture, relative to the total weight of the lubricating composition.
- the invention also relates to the use of a phosphite polymer in combination with a boron dispersant and two antioxidants, to improve the stability to oxidation of a lubricating composition comprising at least one base oil, said phosphite polymer satisfying the formula (I):
- each of R1, R2, R3 and R4 can be chosen independently of each other from C1-C20 alkyl, C3-C22 alkenyl, C6-C40 cycloalkyl, C7-C40 cycloalkenyl, methoxy alkyl glycol ethers in Cl-20 and Y-OH (serving as a terminal group);
- - Y is chosen from C2-C40 alkylene, C2-C40 alkyl lactone, -R7-N(R8)-R9-, in which R7, R8 and R9 are independently of each other chosen from hydrogen, C2-C40 alkyl C1-C20, C3-C22 alkenyl, C6-C40 cycloalkyl, C7-C40 cycloalkenyl, C1-20 methoxy alkyl glycol ethers,
- - m is an integer ranging from 2 to 100
- - n is an integer ranging from 1 to 1000, said two antioxidants being chosen from amino antioxidants, phenolic antioxidants substituted by one or more linear or branched alkyl groups having from 1 to 30 carbon atoms, and mixtures thereof.
- the invention also relates to the use of the lubricating composition according to the invention, for lubricating at least one mechanical part of a motor vehicle, preferably present in a transmission member of a motor vehicle, preferably a gear of a vehicle automobile.
- the lubricating composition according to the invention has the advantage of having very good properties for reducing the phenomenon of flaking, in particular when it is implemented under heavy load and high speed.
- the lubricating composition according to the invention typically exhibits good durability.
- the lubricating composition according to the invention also has good anti-corrosion properties.
- the lubricating composition according to the invention also has very good oxidation stability.
- the present invention relates to a lubricating composition
- a lubricating composition comprising:
- antioxidants chosen from amino antioxidants, antioxidants phenolics substituted with linear or branched alkyl groups having from 1 to 30 carbon atoms, and mixtures thereof.
- the lubricating composition according to the invention comprises at least one phosphite polymer corresponding to formula (I):
- each of R 1 , R 2 , R 3 and R 4 can be chosen independently of each other from C1-C20 alkyl, C3-C22 alkenyl, C6-C40 cycloalkyl, C 7 -C 40 cycloalkenyl , methoxy glycol alkyl ethers, Cl - 20 and Y-OH (serving terminal group);
- Y is selected from the group alkylene, C 2 -C 40 alkyl lactone C 2 -C 40, -R 7 -N (R 8) - R 9 - wherein R 7, R 8 and R 9 are independently from each other chosen from hydrogen, C1-C20 alkyl, C3-C22 alkenyl, C6-C40 cycloalkyl, C7-C40 cycloalkenyl, C1-20 methoxy alkyl glycol ethers,
- - m is an integer ranging from 2 to 100
- - n is an integer ranging from 1 to 1000.
- alkyl is understood to mean a linear or branched noncyclic hydrocarbon-based chain, saturated, optionally comprising one or more heteroatoms, such as oxygen, nitrogen or sulfur atoms.
- the alkyls consist of carbon and hydrogen atoms.
- alkenyl is understood to mean a linear or branched non-cyclic hydrocarbon-based, unsaturated chain, optionally comprising one or more heteroatoms, such as oxygen, nitrogen or sulfur atoms.
- the alkenyls consist of carbon and hydrogen atoms.
- cycloalkyl means a saturated monocyclic or polycyclic group optionally having one or more substituents alkyl or alkenyl, said ring(s) may themselves be substituted by one or more heteroatoms, such as oxygen, nitrogen or sulfur atoms.
- the cycloalkyls consist of carbon and hydrogen atoms.
- cycloalkenyl means a monocyclic or polycyclic unsaturated group optionally having one or more alkyl or alkenyl substituents, said ring(s) may themselves be substituted by one or more heteroatoms, such as atoms of oxygen, nitrogen or sulfur.
- the cycloalkenyls consist of carbon and hydrogen atoms.
- a “Ci-Cj” group is a group comprising from i to j carbon atoms.
- the Y group is chosen from alkylene comprising from 2 to 20 carbon atoms, preferably from 2 to 12 carbon atoms, more preferably from 2 to 8 carbon atoms.
- m ranges from 4 to 100.
- the phosphite polymer of formula (I) has a weight-average molecular mass of less than 30,000 g/mol, preferably ranging from 3,000 to 20,000 g/mol.
- the weight average molecular mass can be measured by size exclusion chromatography.
- the phosphite polymer of formula (I) has a number-average molecular mass of less than 10,000 g/mol, preferably ranging from 1,000 to 5,000 g/mol.
- the number average molecular weight can be measured by size exclusion chromatography.
- the phosphite polymer of formula (I) has a polydispersity index ranging from 1 to 5, preferably ranging from 2 to 4.
- the phosphite polymer of formula (I) contains less than 2% by weight, preferably less than 1% by weight, or even less than 0.7% by weight of (alkyl)phenol group, relative to the total weight of the phosphite polymer of formula (I).
- the phosphite polymer of formula (I) is completely free of aromatic groups other than (alkyl)phenol groups.
- the phosphite polymer is in liquid form.
- the phosphite polymer has a phosphorus content ranging from 0.5 to 20% by weight, preferably from 1 to 10% by weight, relative to the total weight of the phosphite polymer.
- the phosphite polymer used in the invention can be obtained according to the process described in the document WO2011102861.
- the polymer can be obtained according to the process described in paragraphs 27 to 32 of this document.
- Synthesis of the polymers of formula (I) generally involves transesterification in which triphenyl phosphite (or any other suitable alkyl or aryl phosphite) may be reacted with a saturated or unsaturated alcohol or a polyethylene ether or of polypropylene glycol and a diol or a polymer diol H(OY) m OH where Y and m are as defined above with an appropriate basic catalyst at a temperature between 20°C and 250°C, and preferably at a temperature between between 50°C and 185°C.
- Non-limiting examples of saturated or unsaturated alcohols include decyl, isodecyl, lauryl, tridecyl, isotridecyl, tetradecyl, pentadecyl, hexadecyl, stearyl, isostearyl , oleic, monohydroxylated glycol ethers.
- the lubricating composition according to the invention comprises from 0.01 to 10% by weight of phosphite polymer(s), relative to the total weight of the lubricating composition.
- the lubricating composition according to the invention comprises one or more base oils, preferably in a content of at least 70% by weight, preferably ranging from 70 to 99% by weight, more preferably from 80 to 98% by weight , preferably from 85 to 95% by weight, relative to the total weight of the lubricating composition.
- base oils can be chosen from the base oils conventionally used in the field of lubricating oils, such as mineral, synthetic or natural, animal or vegetable oils or mixtures thereof. It may be a mixture of several base oils, for example a mixture of two, three or four base oils.
- the base oils of the lubricating compositions considered according to the invention may in particular be oils of mineral or synthetic origin belonging to groups I to V according to the classes defined in the API classification (or their equivalents according to the ATIEL classification) and presented in Table 1 below or mixtures thereof. [Table 1]
- Mineral base oils include all types of base oils obtained by atmospheric and vacuum distillation of crude oil, followed by refining operations such as solvent extraction, de-alpha removal, solvent dewaxing, hydrotreating, hydrocracking, hydroisomerization and hydrofinishing .
- Blends of synthetic and mineral oils which may be biosourced, can also be used.
- base oils there is generally no limitation as to the use of different base oils to produce the compositions used according to the invention, except that they must have properties, in particular in terms of viscosity, viscosity index, or resistance to oxidation, suitable for use for propulsion systems of an electric or hybrid vehicle.
- the base oils of the compositions used according to the invention can also be chosen from synthetic oils, such as certain acid esters carboxylic acids and alcohols, polyalphaolefins (PAO), and polyalkylene glycol (PAG) obtained by polymerization or copolymerization of alkylene oxides comprising from 2 to 8 carbon atoms, in particular from 2 to 4 carbon atoms.
- the PAOs used as base oils are for example obtained from monomers comprising from 4 to 32 carbon atoms, for example from octene or decene.
- the weight average molecular weight of PAO can vary quite widely. Preferably, the weight-average molecular mass of the PAO is less than 600 Da.
- the weight-average molecular mass of the PAO can also range from 100 to 600 Da, from 150 to 600 Da, or even from 200 to 600 Da.
- the base oil or oils of the lubricating composition according to the invention can be chosen from group II or III base oils.
- the oil or base oils of the composition implemented according to the invention are chosen from polyalphaolefins (PAO), polyalkylene glycol (PAG) and esters of carboxylic acids and alcohols.
- PAO polyalphaolefins
- PAG polyalkylene glycol
- esters of carboxylic acids and alcohols are chosen from polyalphaolefins (PAO), polyalkylene glycol (PAG) and esters of carboxylic acids and alcohols.
- the lubricating composition according to the invention comprises one or more boron dispersants.
- boronated dispersant within the meaning of the present invention, is meant a dispersant additive comprising at least one boron atom.
- the dispersant will make it possible to ensure the maintenance in suspension and the evacuation of the insoluble solid contaminants constituted by the secondary products of oxidation which are formed when the lubricating composition is in service.
- the borated dispersant is chosen from borated succinimide compounds, such as borated polyisobutylene succinimide (PIBSI), or from phospho-boronated compounds, such as borated and phosphated polyisobutylene succinimide (PIBSI).
- borated succinimide compounds such as borated polyisobutylene succinimide (PIBSI)
- PIBSI borated polyisobutylene succinimide
- PIBSI borated and phosphated polyisobutylene succinimide
- the borated compound is chosen from the reaction products of a PIBSA and a borated polyalkylene amine (PIBSA/borated PAM), the reaction products of a PIBSA and a borated polyalkylene amine and phosphate (PIBSA/PAM borated and phosphated).
- PIBSA/borated PAM the reaction products of a PIBSA and a borated polyalkylene amine and phosphate
- the PIB chain preferably has a molar mass ranging from 750 to 3000 g/mol.
- the boron dispersant has a boron content ranging from 0.1 to 10% by weight, preferably from 0.2 to 5% by weight, more preferably from 0.25 to 3% by weight, based on the total weight of the borated dispersant.
- the boron content preferably ranges from 0.1 to 10% by weight, preferably from 0.2 to 5% by weight. weight, more preferably 0.25 to 3% by weight, and the phosphorus content is preferably 0.05 to 5% by weight, more preferably 0.1 to 3% by weight, more preferably 0 2 to 1.5% by weight, based on the total weight of the boron dispersant.
- the boron dispersant does not include phosphorus.
- the lubricating composition comprises from 0.01 to 5% by weight of borated dispersant(s), preferably from 0.1 to 4% by weight of borated dispersant(s), relative to the total weight of the lubricating composition.
- the lubricating composition according to the invention comprises at least two different antioxidants.
- Said at least two antioxidants are chosen from amino antioxidants, phenolic antioxidants substituted with one or more linear or branched alkyl groups having from 1 to 30 carbon atoms, and mixtures thereof.
- the antioxidant additive generally makes it possible to delay the degradation of the composition in service. This degradation can in particular result in the formation of deposits, in the presence of sludge or in an increase in the viscosity of the composition.
- a compound is said to be "phenolic substituted by one or more linear or branched alkyl groups having from 1 to 30 carbon atoms" when it comprises at least one structure of the -O-phenyl type, said phenyl ring being substituted by at least one linear or branched alkyl group having from 1 to 30 carbon atoms.
- the phenolic antioxidants substituted by one or more linear or branched C 1 -C 30 alkyl groups are chosen from triphenylphosphites whose phenyl groups are substituted by at least one linear or branched C 1 -C alkyl group 30, phenols substituted with two alkyl groups in C 1 -C 30 ester group and a C 1 -C 30, compounds comprising two substituted phenols each by at least one alkyl group in C 1 -C 30 and connected by a bridge thioether optionally having an ester function on each side of said bridge.
- At least one of the substituents of the phenol groups is chosen from linear or branched C1-C16, preferably C1-C10, more preferably C I -C 6 alkyls .
- at least one of the substituents of the phenol groups is a tert-butyl group.
- the amino antioxidants are chosen from aromatic amines of formula NR 10 R U R 12 in which R 10 represents an aliphatic group or an optionally substituted aromatic group, R 1 1 represents an optionally substituted aromatic group, R 12 represents a hydrogen atom, an alkyl group, an aryl group or a group of formula R 13 S(0) z R 14 in which R 13 represents an alkylene group or an alkenylene group, R 14 represents an alkyl group, an alkenyl group or an aryl group and z represents 0, 1 or 2.
- an “aromatic” group denotes a group comprising at least one aromatic ring. It may be, for example, a phenyl or naphthyl ring.
- an “aliphatic” group designates a group which is not aromatic. It may be, for example, an alkyl, alkenyl, cycloalkyl or cycloalkenyl group.
- the amino antioxidants are chosen from diphenylamines, diphenylamines substituted with at least one C 1 -C 30 alkyl group, N,N'-dialkyl-aryl-diamines, preferably from diphenylamines, diphenylamines substituted with at least one C 1 -C 30 alkyl group,.
- the amino antioxidant(s) used in the invention comprise from 1 to 10% by weight of nitrogen, preferably from 2 to 7% by weight of nitrogen, relative to the weight of said antioxidant.
- the lubricating composition comprises at least two antioxidants chosen from triphenylphosphites whose phenyl groups are substituted by at least one linear or branched C1-C30 alkyl group, phenols substituted by two alkyl groups in C1-C30 and a C1-C30 ester group, compounds comprising two phenols each substituted by at least one C1-C30 alkyl group and connected by a thioether bridge optionally having an ester function on each side of said bridge, diphenylamines, diphenylamines substituted with at least one C1-C30 alkyl group, N,N'-dialkyl-aryl-diamines, and mixtures thereof.
- the lubricating composition comprises:
- the lubricating composition comprises:
- At least one antioxidant chosen from diphenylamines, diphenylamines substituted with at least one C1-C30 alkyl group, N,N'-dialkyl-aryl-diamines, and mixtures thereof, and
- At least one antioxidant chosen from triphenylphosphites whose phenyl groups are substituted by at least one linear or branched C1-C30 alkyl group, phenols substituted by two C1-C30 alkyl groups and a Ci-C30 ester group, compounds comprising two phenols each substituted by at least one C1-C30 alkyl group and connected by a thioether bridge optionally having an ester function on each side of said bridge.
- the lubricating composition comprises from 0.01 to 5% by weight, or even from 0.1 to 3% by weight, of a mixture of at least two antioxidants chosen from amino antioxidants, phenolic antioxidants substituted by a or more linear or branched alkyl groups having from 1 to 30 carbon atoms, and mixtures thereof, relative to the total weight of the lubricating composition.
- the lubricating composition according to the invention may also further comprise all types of functional additives, distinct from the phosphite polymer and antioxidant additives and boron dispersant defined in the context of the present invention, suitable for use in a lubricant for motor vehicles, in particular for manual or automatic transmission of motor vehicles.
- Such additives can be chosen from anti-wear additives, detergents, non-boronated dispersants, antioxidants different from the antioxidants defined in the present invention, pour point depressants, antifoaming agents, viscosity index improvers, and mixtures thereof.
- composition according to the invention comprises at least one functional additive chosen from anti-wear additives, detergents, non-boronated dispersants, antioxidants, pour point depressants, anti-foam agents, improvers of viscosity index, and mixtures thereof.
- these additional functional additives represent (in total) from 1 to 30% by weight, preferably from 1.5 to 25% by weight, preferably from 2 to 20% by weight, of the weight total of the lubricating composition.
- additives can be introduced separately and/or in the form of a mixture like those already available for sale for the formulations of commercial lubricants for vehicle engines, with a performance level as defined by the ACEA ( Association of European Automobile Manufacturers) and/or the API (American Petroleum Institute), well known to those skilled in the art.
- ACEA Association of European Automobile Manufacturers
- API American Petroleum Institute
- the lubricating composition according to the invention may optionally comprise one or more anti-wear additives.
- Said anti-wear additives can be chosen from phosphorus anti-wear, sulfur anti-wear, phospho-sulfur anti-wear, and a mixture thereof.
- a "phosphorus anti-wear” will designate an anti-wear comprising at least one phosphorus atom and not comprising sulfur, said phosphorus anti-wear may optionally comprise one or more nitrogen atoms (in addition carbon and hydrogen atoms). In this case, it can then be referred to as "phosphorus-amine anti-wear”.
- a "sulfur anti-wear” will designate an anti-wear comprising at least one sulfur atom and not comprising phosphorus, said phosphorus anti-wear may optionally comprise one or more nitrogen atoms (in addition carbon and hydrogen atoms). In this case, it can then be referred to as “sulphur-amine anti-wear”.
- a "phosphor-sulfur anti-wear” will designate an anti-wear comprising at least one phosphorus atom and at least one sulfur atom, said phospho-sulphur anti-wear may optionally comprise one or more atoms nitrogen (in addition to carbon and hydrogen atoms). In this case, it can then be referred to as “sulphur-amine anti-wear”.
- phosphorus anti-wear additives of phosphates, phosphites and phosphonates. These terms denote both phosphoric, phosphorous and phosphonic acids, their mono, di and triesters, for example alkyl phosphates, alkyl phosphonates, and their salts, for example amines.
- the phospho-sulfur anti-wear additives optionally used in the present invention may be (mono or di) thiophosphates and thiophosphites, these terms including thiophosphoric and thiophosphorous acids, the esters of these acids, their salts, dithiophosphites and dithiophosphates.
- phospho-sulfur anti-wear additives of monobutylthiophosphate, monooctylthiophosphate, monolaurylthiophosphate, dibutylthiophosphate, dilaurylthiophosphate, tributylthiophosphate, trioctylthiophosphate, triphenylthiophosphate, monooctylthiophosphite, trilaurylthiophosphate, monolaurylthiophosphite, monobutylthiophosphite, dibutylthiophosphite, dilaurylthiophosphite, tributylthiophosphite, trioctylthiophosphate, monolaurylthiophosphite, monobutylthiophosphite, dibutylthiophosphite, dilaurylthiophosphite, tributylthiophosphite, trioctylthiophosphat
- salts of esters of thiophosphoric acid and of thiophosphorous acid are those obtained by reaction with a nitrogenous compound such as ammonia or an amine or zinc oxide or zinc chloride.
- the anti-wear additive(s) used in the invention are chosen from phospho-sulfur anti-wear, sulfur-amine anti-wear, and mixtures thereof.
- the lubricating composition according to the invention may comprise from 0.01 to 5% by weight of anti-wear additive(s), relative to the total weight of the lubricating composition.
- the quantity of anti-wear additives may be adapted in order to obtain a phosphorus content ranging from 5 to 9150 ppm by weight in the lubricating composition.
- the phosphorus content in the lubricating composition according to the invention ranges from 5 to 4500 ppm by weight, relative to the total weight of the lubricating composition.
- the lubricating composition according to the invention may comprise at least one antioxidant additive different from the antioxidant additives defined previously in the present invention.
- Said (different) antioxidant can be chosen from copper compounds, for example copper thio- or dithio-phosphates, salts of copper and of carboxylic acids, dithiocarbamates, sulphonates, phenates, copper acetylacetonates. Copper I and II salts, succinic acid or anhydride salts can also be used.
- the lubricating composition according to the invention may comprise from 0.5 to 2% by weight of at least one antioxidant additive different from the antioxidants defined above in the context of the invention, relative to the total weight of the composition.
- 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 composition 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 hydrophilic 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 acids, sulfonates, salicylates, naphthenates, as well as phenate salts.
- the alkali and alkaline-earth metals are preferably calcium, magnesium, sodium or barium. These metallic salts generally comprise the metal in a stoichiometric quantity or else in excess, therefore in a quantity greater than the narrow stoichiometric quantity.
- the excess metal providing the overbased character to the detergent additive is then generally in the form of an oil-insoluble metal salt, for example a carbonate, a hydroxide, an oxalate, an acetate, a glutamate, preferentially a carbonate .
- the lubricating composition suitable for the invention may for example comprise from 0.5 to 4% by weight of detergent additive, relative to the total weight of the composition.
- the lubricating composition according to the invention may comprise at least one non-boronated dispersing agent.
- the non-boronated dispersing agent can be chosen from Mannich bases or compounds of the succinimide type, such as non-boronated polyisobutylene succinimide (PIBSI).
- PIBSI non-boronated polyisobutylene succinimide
- the lubricating composition according to the invention may, for example, comprise from 0.2 to 10% by weight of non-boronated dispersing agent(s), relative to the total weight of the composition.
- the lubricating composition according to the invention may also comprise at least one antifoaming agent.
- the antifoaming agent can be chosen from silicones.
- the lubricating composition according to the invention may comprise from 0.01 to 2% by mass or from 0.01 to 5% by mass, preferably from 0.1 to 1.5% by mass or from 0.1 to 2% by mass of agent antifoam, relative to the total weight of the composition.
- the lubricating composition according to the invention may also comprise at least one pour point depressant additive (also called “PPD” agents for “Pour Point Depressant” in English).
- PPD pour point depressant additive
- pour point depressants By slowing down the formation of paraffin crystals, pour point depressants generally improve the cold behavior of the composition.
- pour point depressant additives mention may be made of polyalkyl methacrylates, polyacrylates, polyarylamides, polyalkylphenols, polyalkylnaphthalenes, alkylated polystyrenes.
- the lubricating composition according to the invention may also comprise at least one viscosity index improver (VI improver).
- VI improvers mention may be made of polymethacrylates, polyisobutenes or fatty acid esters. When they are present, these additives can represent from 1 to 25% by weight, of the total weight of the lubricating composition.
- the phosphite polymer, the boron dispersant and, where appropriate, the anti-wear additive can be added to an oil or mixture of base oils, then the other optional additional additives added .
- the phosphite polymer, the boron dispersant and, where applicable, the anti-wear additive can be added to a pre-existing conventional lubricant formulation, comprising in particular one or more base oils, and optionally additional additives.
- the phosphite polymer, the boron dispersant and, where appropriate, the anti-wear additive defined in the present invention can be combined with one or more additional additives when they are present, and the "package" of additives thus formed added to an oil or a mixture of base oils.
- the lubricating composition according to the invention has a kinematic viscosity, measured at 40° C. according to the ASTM D445 standard, ranging from 5 to 300 mm 2 /s, in particular from 10 to 25 mm 2 /s.
- the lubricating composition according to the invention has a kinematic viscosity, measured at 100° C. according to the ASTM D445 standard, ranging from 1 to 20 mm 2 /s, in particular from 2 to 15 mm 2 /s.
- the lubricating composition according to the invention comprises, or even consists of:
- borated dispersant chosen from borated SI PIBs and borated and phosphated SI PIBs;
- anti-wear additives optionally one or more additional additives chosen from anti-wear additives, viscosity index modifiers, detergents, non-boronated dispersants, antioxidants, pour point depressants, anti-foam agents and their mixtures.
- additional additives chosen from anti-wear additives, viscosity index modifiers, detergents, non-boronated dispersants, antioxidants, pour point depressants, anti-foam agents and their mixtures.
- the lubricating composition according to the invention comprises, or even consists of:
- borated dispersant(s) chosen from borated PIBSIs and borated and phosphated PIBSIs;
- one or more functional additives preferably chosen from anti-wear additives , viscosity index modifiers, detergents, non-boronated dispersants, antioxidants, pour point depressants, antifoaming agents and mixtures thereof.
- the lubricating composition according to the invention comprises from 5 to 4000 ppm by weight of sulfur, preferably from 7 to 1000 ppm by weight of sulfur, more preferably from 10 to 800 ppm by weight of sulfur, by relative to the total weight of the lubricating composition.
- the lubricating composition according to the invention comprises from 5 to 9150 ppm by weight of phosphorus, preferably from 5 to 4500 ppm by weight of phosphorus, relative to the total weight of the lubricating composition.
- the boron content of the lubricating composition ranges from 5 to 500 ppm, preferably from 10 to 300 ppm by weight, relative to the total weight of the lubricating composition.
- the nitrogen content of the lubricating composition ranges from 5 to 5000 ppm, preferably from 10 to 2000 ppm by weight, relative to the total weight of the lubricating composition.
- the present invention also relates to the use of the phosphite polymer as defined above in combination with a boron dispersant and two antioxidants as defined in the present invention, in a lubricating composition comprising at least one base oil, in order to improve the stability to the oxidation of said lubricating composition.
- the use of the invention is characterized by a change in viscosity at 100° C. of the lubricating composition comprising at least one base oil, said phosphite polymer, said boron dispersant, and said antioxidants, of less than 10% according to the DIN 51659-2 method.
- a subject of the present invention is also the use of the lubricating composition according to the invention for lubricating the transmissions of motor vehicles, in particular the gears of the transmissions.
- Transmissions can be manual or automatic transmissions.
- the lubricating composition according to the invention is used to reduce the wear of a mechanical part of a motor vehicle transmission, in particular of a motor vehicle gear.
- the lubricating composition according to the invention makes it possible to reduce the wear of the gears of the transmissions.
- the lubricating composition according to the invention is used to reduce the spalling of a mechanical part of a motor vehicle transmission, in particular of a motor vehicle gear.
- the lubricating composition according to the invention is used to both reduce wear and reduce spalling of a mechanical part of a motor vehicle transmission, in particular of a vehicle gear automobiles.
- the invention also relates, according to another of its aspects, to a method for lubricating at least one part of a transmission of a motor vehicle, in particular a gear of a motor vehicle, comprising at least one step bringing at least said part into contact with a lubricating composition as described above.
- the invention also relates, according to another of its aspects, to a process for improving the stability to oxidation of a lubricating composition, said process comprising a step of mixing at least one phosphite polymer of formula (I) as defined in the present invention, of at least one boron dispersant and of at least two antioxidants as defined in the present invention, with at least one base oil, preferably said polymer, said dispersant and said antioxidants are additionally mixed with an anti-wear additive.
- a process for improving the stability to oxidation of a lubricating composition comprising a step of mixing at least one phosphite polymer of formula (I) as defined in the present invention, of at least one boron dispersant and of at least two antioxidants as defined in the present invention, with at least one base oil, preferably said polymer, said dispersant and said antioxidants are additionally mixed with an anti-wear additive.
- composition according to the invention make it possible to define uses according to the invention which are also particular, advantageous or preferred.
- Example 1 Preparation of the lubricating compositions
- the lubricating compositions were prepared by mixing the ingredients at a temperature of approximately 40° C., according to methods well known to those skilled in the art.
- the lubricating compositions which were prepared and tested are detailed in Table 2 below.
- the percentages are percentages by weight, relative to the total weight of the lubricating composition.
- the elemental contents of phosphorus, boron, sulfur and amine were calculated according to the elemental contents in the ingredients and are also indicated in table 2 in ppm by weight.
- the base oils are group III base oils
- the phosphite polymer corresponds to formula (I) and comprises 4.50% by weight of phosphorus and zero sulphur, it has a weight-average molecular mass of approximately 10,000 g/mol and a number-average molecular mass of approximately 3000 g/mol, it can be obtained for example according to the method described in example 2 of document WO 2011/102861,
- the phospho-sulfur anti-wear is of the phosphorothionate type and comprises 9.30% by weight of phosphorus and 19.80% by weight of sulfur,
- the borated dispersant is a borated PIBSI comprising 0.40% by weight of boron and zero phosphorus
- the non-boronated dispersant is an amino dispersant comprising 3.20% by weight of nitrogen and zero boron and zero phosphorus
- the phospho-boronated dispersant is a borated and phosphated PIBSI comprising 1% by weight of boron and 0.75% by weight of phosphorus,
- - amino antioxidant 1 is an alkylated diphenylamine antioxidant comprising 4.50% by weight of nitrogen
- - amino antioxidant 2 is a naphthyl-phenyl-alkylamine antioxidant comprising 4.78% by weight of nitrogen
- the phenolic antioxidant 1 is an antioxidant comprising a phenol group substituted by two C1-C30 alkyl groups and a C1-C30 ester group, this phenolic antioxidant 1 does not contain sulfur, phosphorus or nitrogen,
- the phenolic antioxidant 2 is an antioxidant comprising two phenol groups each substituted by at least one C1-C30 alkyl group and connected by a thioether bridge having an ester function on each side of said bridge, this phenolic antioxidant 2 comprises 4.90% by weight of sulphur, and zero nitrogen and zero phosphorus,
- the phenolic antioxidant 3 is a triphenylphosphite antioxidant whose 3 phenyl groups are substituted by at least one linear or branched C1-C30 alkyl group, this phenolic antioxidant 3 comprises 5% by weight of phosphorus, and zero nitrogen and zero sulphur,
- the detergent is an overbased calcium sulfonate detergent
- the additive package contains a pour point improver and a defoamer.
- Example 2 Studies of the performances of the lubricating compositions Oxidation stability was evaluated by measuring the change in viscosity at 100°C during a 192h test at 170°C, according to DIN 51659-2. The change in viscosity is expressed in % in Table 3 below.
- Example 3 Studies of the performances of the lubricating compositions
- the oxidation stability was evaluated by measuring the change in viscosity at 100°C during a test of 384h at 170°C, according to DIN 51659-2.
- the change in viscosity is expressed in % in Table 4 below.
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Abstract
Description
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Application Number | Priority Date | Filing Date | Title |
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FR2007725A FR3112792B1 (fr) | 2020-07-22 | 2020-07-22 | Composition lubrifiante pour transmission automobile stable à l’oxydation. |
PCT/EP2021/070074 WO2022018001A1 (fr) | 2020-07-22 | 2021-07-19 | Composition lubrifiante pour transmission automobile stable à l'oxydation |
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EP4185671A1 true EP4185671A1 (fr) | 2023-05-31 |
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EP21746441.1A Pending EP4185671A1 (fr) | 2020-07-22 | 2021-07-19 | Composition lubrifiante pour transmission automobile stable à l'oxydation |
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US (1) | US12098348B2 (fr) |
EP (1) | EP4185671A1 (fr) |
JP (1) | JP2023534509A (fr) |
KR (1) | KR20230042293A (fr) |
CN (1) | CN116264838A (fr) |
FR (1) | FR3112792B1 (fr) |
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US3081331A (en) * | 1961-08-07 | 1963-03-12 | Weston Chemical Corp | Poly phosphorus ester condensates and their preparation |
US3263002A (en) * | 1961-08-07 | 1966-07-26 | Union Carbide Corp | Phosphorus containing polyols |
US3087936A (en) * | 1961-08-18 | 1963-04-30 | Lubrizol Corp | Reaction product of an aliphatic olefinpolymer-succinic acid producing compound with an amine and reacting the resulting product with a boron compound |
US9074157B2 (en) * | 2009-04-30 | 2015-07-07 | The Lubrizol Corporation | Polymeric phosphorus esters for lubricant applications |
JP5642360B2 (ja) * | 2009-06-16 | 2014-12-17 | シェブロンジャパン株式会社 | 潤滑油組成物 |
CN102985474B (zh) | 2010-02-19 | 2014-08-20 | 多弗化学公司 | 无烷基酚的液态聚合亚磷酸酯聚合物稳定剂 |
US10793802B2 (en) * | 2014-11-12 | 2020-10-06 | The Lubrizol Corporation | Mixed phosphorus esters for lubricant applications |
-
2020
- 2020-07-22 FR FR2007725A patent/FR3112792B1/fr active Active
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2021
- 2021-07-19 WO PCT/EP2021/070074 patent/WO2022018001A1/fr active Application Filing
- 2021-07-19 EP EP21746441.1A patent/EP4185671A1/fr active Pending
- 2021-07-19 CN CN202180060605.8A patent/CN116264838A/zh active Pending
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JP2023534509A (ja) | 2023-08-09 |
FR3112792A1 (fr) | 2022-01-28 |
FR3112792B1 (fr) | 2023-04-28 |
US20230303945A1 (en) | 2023-09-28 |
MX2023000843A (es) | 2023-04-19 |
US12098348B2 (en) | 2024-09-24 |
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