EP3397740B1 - Lubricating oil composition for diesel engines - Google Patents
Lubricating oil composition for diesel engines Download PDFInfo
- Publication number
- EP3397740B1 EP3397740B1 EP16819121.1A EP16819121A EP3397740B1 EP 3397740 B1 EP3397740 B1 EP 3397740B1 EP 16819121 A EP16819121 A EP 16819121A EP 3397740 B1 EP3397740 B1 EP 3397740B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- viscosity
- viscosity index
- index improver
- lubricating oil
- boron
- 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.)
- Active
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- 239000000203 mixture Substances 0.000 title claims description 55
- 239000010687 lubricating oil Substances 0.000 title claims description 47
- 239000002199 base oil Substances 0.000 claims description 52
- 229920000193 polymethacrylate Polymers 0.000 claims description 36
- 229910052796 boron Inorganic materials 0.000 claims description 32
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 31
- 239000003599 detergent Substances 0.000 claims description 22
- 239000002270 dispersing agent Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 21
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims description 17
- 229920001577 copolymer Polymers 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 3
- 239000000243 solution Substances 0.000 description 21
- 239000000446 fuel Substances 0.000 description 20
- 229920000642 polymer Polymers 0.000 description 19
- -1 alkaline earth metal salts Chemical class 0.000 description 15
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 13
- 239000003921 oil Substances 0.000 description 13
- 239000000126 substance Substances 0.000 description 12
- 238000012360 testing method Methods 0.000 description 10
- 239000011575 calcium Substances 0.000 description 9
- 239000011701 zinc Substances 0.000 description 9
- 125000000217 alkyl group Chemical group 0.000 description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 7
- 229910052791 calcium Inorganic materials 0.000 description 7
- 239000000470 constituent Substances 0.000 description 7
- 229910052725 zinc Inorganic materials 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 150000001342 alkaline earth metals Chemical class 0.000 description 6
- 239000003963 antioxidant agent Substances 0.000 description 6
- 235000006708 antioxidants Nutrition 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 6
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000010790 dilution Methods 0.000 description 5
- 239000012895 dilution Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000010705 motor oil Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 239000013530 defoamer Substances 0.000 description 3
- 239000003085 diluting agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012847 fine chemical Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002480 mineral oil Substances 0.000 description 3
- 235000010446 mineral oil Nutrition 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 description 2
- ICKWICRCANNIBI-UHFFFAOYSA-N 2,4-di-tert-butylphenol Chemical compound CC(C)(C)C1=CC=C(O)C(C(C)(C)C)=C1 ICKWICRCANNIBI-UHFFFAOYSA-N 0.000 description 2
- JZODKRWQWUWGCD-UHFFFAOYSA-N 2,5-di-tert-butylbenzene-1,4-diol Chemical compound CC(C)(C)C1=CC(O)=C(C(C)(C)C)C=C1O JZODKRWQWUWGCD-UHFFFAOYSA-N 0.000 description 2
- DKCPKDPYUFEZCP-UHFFFAOYSA-N 2,6-di-tert-butylphenol Chemical compound CC(C)(C)C1=CC=CC(C(C)(C)C)=C1O DKCPKDPYUFEZCP-UHFFFAOYSA-N 0.000 description 2
- VSAWBBYYMBQKIK-UHFFFAOYSA-N 4-[[3,5-bis[(3,5-ditert-butyl-4-hydroxyphenyl)methyl]-2,4,6-trimethylphenyl]methyl]-2,6-ditert-butylphenol Chemical compound CC1=C(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)C(C)=C(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)C(C)=C1CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 VSAWBBYYMBQKIK-UHFFFAOYSA-N 0.000 description 2
- QHPQWRBYOIRBIT-UHFFFAOYSA-N 4-tert-butylphenol Chemical compound CC(C)(C)C1=CC=C(O)C=C1 QHPQWRBYOIRBIT-UHFFFAOYSA-N 0.000 description 2
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 description 2
- KEQFTVQCIQJIQW-UHFFFAOYSA-N N-Phenyl-2-naphthylamine Chemical compound C=1C=C2C=CC=CC2=CC=1NC1=CC=CC=C1 KEQFTVQCIQJIQW-UHFFFAOYSA-N 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- CGRTZESQZZGAAU-UHFFFAOYSA-N [2-[3-[1-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoyloxy]-2-methylpropan-2-yl]-2,4,8,10-tetraoxaspiro[5.5]undecan-9-yl]-2-methylpropyl] 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C)=CC(CCC(=O)OCC(C)(C)C2OCC3(CO2)COC(OC3)C(C)(C)COC(=O)CCC=2C=C(C(O)=C(C)C=2)C(C)(C)C)=C1 CGRTZESQZZGAAU-UHFFFAOYSA-N 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 125000003785 benzimidazolyl group Chemical class N1=C(NC2=C1C=CC=C2)* 0.000 description 2
- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical class C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 description 2
- 150000001565 benzotriazoles Chemical class 0.000 description 2
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 150000001638 boron Chemical class 0.000 description 2
- 159000000007 calcium salts Chemical class 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000006078 metal deactivator Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- NIXKBAZVOQAHGC-UHFFFAOYSA-N phenylmethanesulfonic acid Chemical compound OS(=O)(=O)CC1=CC=CC=C1 NIXKBAZVOQAHGC-UHFFFAOYSA-N 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- BCMCBBGGLRIHSE-UHFFFAOYSA-N 1,3-benzoxazole Chemical class C1=CC=C2OC=NC2=C1 BCMCBBGGLRIHSE-UHFFFAOYSA-N 0.000 description 1
- PWNBRRGFUVBTQG-UHFFFAOYSA-N 1-n,4-n-di(propan-2-yl)benzene-1,4-diamine Chemical compound CC(C)NC1=CC=C(NC(C)C)C=C1 PWNBRRGFUVBTQG-UHFFFAOYSA-N 0.000 description 1
- WJFKNYWRSNBZNX-UHFFFAOYSA-N 10H-phenothiazine Chemical compound C1=CC=C2NC3=CC=CC=C3SC2=C1 WJFKNYWRSNBZNX-UHFFFAOYSA-N 0.000 description 1
- 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 1
- OPLCSTZDXXUYDU-UHFFFAOYSA-N 2,4-dimethyl-6-tert-butylphenol Chemical compound CC1=CC(C)=C(O)C(C(C)(C)C)=C1 OPLCSTZDXXUYDU-UHFFFAOYSA-N 0.000 description 1
- BVUXDWXKPROUDO-UHFFFAOYSA-N 2,6-di-tert-butyl-4-ethylphenol Chemical compound CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 BVUXDWXKPROUDO-UHFFFAOYSA-N 0.000 description 1
- SLUKQUGVTITNSY-UHFFFAOYSA-N 2,6-di-tert-butyl-4-methoxyphenol Chemical compound COC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SLUKQUGVTITNSY-UHFFFAOYSA-N 0.000 description 1
- VMZVBRIIHDRYGK-UHFFFAOYSA-N 2,6-ditert-butyl-4-[(dimethylamino)methyl]phenol Chemical compound CN(C)CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 VMZVBRIIHDRYGK-UHFFFAOYSA-N 0.000 description 1
- QHPKIUDQDCWRKO-UHFFFAOYSA-N 2,6-ditert-butyl-4-[2-(3,5-ditert-butyl-4-hydroxyphenyl)propan-2-yl]phenol Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(C(C)(C)C=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 QHPKIUDQDCWRKO-UHFFFAOYSA-N 0.000 description 1
- YQQQXXUABFURLN-UHFFFAOYSA-N 2,6-ditert-butyl-4-ethoxyphenol Chemical compound CCOC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 YQQQXXUABFURLN-UHFFFAOYSA-N 0.000 description 1
- ROHFBIREHKPELA-UHFFFAOYSA-N 2-[(3,5-ditert-butyl-4-hydroxyphenyl)methyl]prop-2-enoic acid;methane Chemical compound C.CC(C)(C)C1=CC(CC(=C)C(O)=O)=CC(C(C)(C)C)=C1O.CC(C)(C)C1=CC(CC(=C)C(O)=O)=CC(C(C)(C)C)=C1O.CC(C)(C)C1=CC(CC(=C)C(O)=O)=CC(C(C)(C)C)=C1O.CC(C)(C)C1=CC(CC(=C)C(O)=O)=CC(C(C)(C)C)=C1O ROHFBIREHKPELA-UHFFFAOYSA-N 0.000 description 1
- HDOSZUXZSCOAKA-UHFFFAOYSA-N 2-[(3,5-ditert-butyl-4-hydroxyphenyl)methylsulfanyl]decanoic acid Chemical compound CCCCCCCCC(C(O)=O)SCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 HDOSZUXZSCOAKA-UHFFFAOYSA-N 0.000 description 1
- QSRJVOOOWGXUDY-UHFFFAOYSA-N 2-[2-[2-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoyloxy]ethoxy]ethoxy]ethyl 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C)=CC(CCC(=O)OCCOCCOCCOC(=O)CCC=2C=C(C(O)=C(C)C=2)C(C)(C)C)=C1 QSRJVOOOWGXUDY-UHFFFAOYSA-N 0.000 description 1
- XVEYHYHXRYVWJW-UHFFFAOYSA-N 2-ethyl-n-(2-ethyl-4-nonylphenyl)-4-nonylaniline Chemical compound CCC1=CC(CCCCCCCCC)=CC=C1NC1=CC=C(CCCCCCCCC)C=C1CC XVEYHYHXRYVWJW-UHFFFAOYSA-N 0.000 description 1
- WJQOZHYUIDYNHM-UHFFFAOYSA-N 2-tert-Butylphenol Chemical compound CC(C)(C)C1=CC=CC=C1O WJQOZHYUIDYNHM-UHFFFAOYSA-N 0.000 description 1
- HXIQYSLFEXIOAV-UHFFFAOYSA-N 2-tert-butyl-4-(5-tert-butyl-4-hydroxy-2-methylphenyl)sulfanyl-5-methylphenol Chemical compound CC1=CC(O)=C(C(C)(C)C)C=C1SC1=CC(C(C)(C)C)=C(O)C=C1C HXIQYSLFEXIOAV-UHFFFAOYSA-N 0.000 description 1
- PFANXOISJYKQRP-UHFFFAOYSA-N 2-tert-butyl-4-[1-(5-tert-butyl-4-hydroxy-2-methylphenyl)butyl]-5-methylphenol Chemical compound C=1C(C(C)(C)C)=C(O)C=C(C)C=1C(CCC)C1=CC(C(C)(C)C)=C(O)C=C1C PFANXOISJYKQRP-UHFFFAOYSA-N 0.000 description 1
- IMOYOUMVYICGCA-UHFFFAOYSA-N 2-tert-butyl-4-hydroxyanisole Chemical compound COC1=CC=C(O)C=C1C(C)(C)C IMOYOUMVYICGCA-UHFFFAOYSA-N 0.000 description 1
- IKEHOXWJQXIQAG-UHFFFAOYSA-N 2-tert-butyl-4-methylphenol Chemical compound CC1=CC=C(O)C(C(C)(C)C)=C1 IKEHOXWJQXIQAG-UHFFFAOYSA-N 0.000 description 1
- XOUQAVYLRNOXDO-UHFFFAOYSA-N 2-tert-butyl-5-methylphenol Chemical compound CC1=CC=C(C(C)(C)C)C(O)=C1 XOUQAVYLRNOXDO-UHFFFAOYSA-N 0.000 description 1
- GPNYZBKIGXGYNU-UHFFFAOYSA-N 2-tert-butyl-6-[(3-tert-butyl-5-ethyl-2-hydroxyphenyl)methyl]-4-ethylphenol Chemical compound CC(C)(C)C1=CC(CC)=CC(CC=2C(=C(C=C(CC)C=2)C(C)(C)C)O)=C1O GPNYZBKIGXGYNU-UHFFFAOYSA-N 0.000 description 1
- STGFANHLXUILNY-UHFFFAOYSA-N 3,7-dioctyl-10h-phenothiazine Chemical compound C1=C(CCCCCCCC)C=C2SC3=CC(CCCCCCCC)=CC=C3NC2=C1 STGFANHLXUILNY-UHFFFAOYSA-N 0.000 description 1
- XMIIGOLPHOKFCH-UHFFFAOYSA-N 3-phenylpropionic acid Chemical compound OC(=O)CCC1=CC=CC=C1 XMIIGOLPHOKFCH-UHFFFAOYSA-N 0.000 description 1
- MRBKEAMVRSLQPH-UHFFFAOYSA-N 3-tert-butyl-4-hydroxyanisole Chemical compound COC1=CC=C(O)C(C(C)(C)C)=C1 MRBKEAMVRSLQPH-UHFFFAOYSA-N 0.000 description 1
- MDWVSAYEQPLWMX-UHFFFAOYSA-N 4,4'-Methylenebis(2,6-di-tert-butylphenol) Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 MDWVSAYEQPLWMX-UHFFFAOYSA-N 0.000 description 1
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical class C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 1
- JHCCIUPVUCVKIJ-UHFFFAOYSA-N 4,6-ditert-butyl-2-(3,5-ditert-butyl-2,6-dihydroxyphenyl)sulfanylbenzene-1,3-diol Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=C(O)C(SC=2C(=C(C=C(C=2O)C(C)(C)C)C(C)(C)C)O)=C1O JHCCIUPVUCVKIJ-UHFFFAOYSA-N 0.000 description 1
- PRWJPWSKLXYEPD-UHFFFAOYSA-N 4-[4,4-bis(5-tert-butyl-4-hydroxy-2-methylphenyl)butan-2-yl]-2-tert-butyl-5-methylphenol Chemical compound C=1C(C(C)(C)C)=C(O)C=C(C)C=1C(C)CC(C=1C(=CC(O)=C(C=1)C(C)(C)C)C)C1=CC(C(C)(C)C)=C(O)C=C1C PRWJPWSKLXYEPD-UHFFFAOYSA-N 0.000 description 1
- ZVVFVKJZNVSANF-UHFFFAOYSA-N 6-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]hexyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCCCCCCOC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 ZVVFVKJZNVSANF-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- ZZGHZLUTIKGEDL-UHFFFAOYSA-M C(CC(C)C)SP(=S)(OCCC(C)C)[O-].[Zn+] Chemical compound C(CC(C)C)SP(=S)(OCCC(C)C)[O-].[Zn+] ZZGHZLUTIKGEDL-UHFFFAOYSA-M 0.000 description 1
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- NIGWBUOGUODAAT-UHFFFAOYSA-N CCCCCC(CC)(CC)[S+]=P([O-])([O-])[S-].CCCCCC(CC)(CC)[S+]=P([O-])([O-])[S-].[Zn+2].[Zn+2].[Zn+2] Chemical compound CCCCCC(CC)(CC)[S+]=P([O-])([O-])[S-].CCCCCC(CC)(CC)[S+]=P([O-])([O-])[S-].[Zn+2].[Zn+2].[Zn+2] NIGWBUOGUODAAT-UHFFFAOYSA-N 0.000 description 1
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- MEGCHDFJJUAPQS-UHFFFAOYSA-M [Zn+].CCCCCCCCCOP([O-])(=S)SCCCCCCCCC Chemical compound [Zn+].CCCCCCCCCOP([O-])(=S)SCCCCCCCCC MEGCHDFJJUAPQS-UHFFFAOYSA-M 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
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- MHJCZOMOUCUAOI-UHFFFAOYSA-N n-tert-butyl-n-phenylaniline Chemical compound C=1C=CC=CC=1N(C(C)(C)C)C1=CC=CC=C1 MHJCZOMOUCUAOI-UHFFFAOYSA-N 0.000 description 1
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- WMYJOZQKDZZHAC-UHFFFAOYSA-H trizinc;dioxido-sulfanylidene-sulfido-$l^{5}-phosphane Chemical class [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S WMYJOZQKDZZHAC-UHFFFAOYSA-H 0.000 description 1
- WAILXPVSJYWOEV-UHFFFAOYSA-L zinc;(2,3-didodecylphenyl)sulfanyl-dioxido-sulfanylidene-$l^{5}-phosphane Chemical compound [Zn+2].CCCCCCCCCCCCC1=CC=CC(SP([O-])([O-])=S)=C1CCCCCCCCCCCC WAILXPVSJYWOEV-UHFFFAOYSA-L 0.000 description 1
- ZNCAMSISVWKWHL-UHFFFAOYSA-L zinc;butoxy-butylsulfanyl-oxido-sulfanylidene-$l^{5}-phosphane Chemical compound [Zn+2].CCCCOP([O-])(=S)SCCCC.CCCCOP([O-])(=S)SCCCC ZNCAMSISVWKWHL-UHFFFAOYSA-L 0.000 description 1
- ZBDJNBFTEIUHPK-UHFFFAOYSA-L zinc;dihexoxy-sulfanylidene-sulfido-$l^{5}-phosphane Chemical compound [Zn+2].CCCCCCOP([S-])(=S)OCCCCCC.CCCCCCOP([S-])(=S)OCCCCCC ZBDJNBFTEIUHPK-UHFFFAOYSA-L 0.000 description 1
- GBEDXBRGRSPHRI-UHFFFAOYSA-L zinc;octoxy-octylsulfanyl-oxido-sulfanylidene-$l^{5}-phosphane Chemical compound [Zn+2].CCCCCCCCOP([O-])(=S)SCCCCCCCC.CCCCCCCCOP([O-])(=S)SCCCCCCCC GBEDXBRGRSPHRI-UHFFFAOYSA-L 0.000 description 1
- HHMFJIHYTYQNJP-UHFFFAOYSA-L zinc;oxido-pentoxy-pentylsulfanyl-sulfanylidene-$l^{5}-phosphane Chemical compound [Zn+2].CCCCCOP([O-])(=S)SCCCCC.CCCCCOP([O-])(=S)SCCCCC HHMFJIHYTYQNJP-UHFFFAOYSA-L 0.000 description 1
- LZVDFWITYZHIEU-UHFFFAOYSA-L zinc;oxido-propoxy-propylsulfanyl-sulfanylidene-$l^{5}-phosphane Chemical compound [Zn+2].CCCOP([O-])(=S)SCCC.CCCOP([O-])(=S)SCCC LZVDFWITYZHIEU-UHFFFAOYSA-L 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
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- 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
- 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
- C10M105/34—Esters of monocarboxylic acids
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M109/00—Lubricating compositions characterised by the base-material being a compound of unknown or incompletely defined constitution
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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
- C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
- C10M143/10—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation containing aromatic monomer, e.g. styrene
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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
- C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
- C10M143/12—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation containing conjugated diene
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
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- C10M145/14—Acrylate; Methacrylate
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- 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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- C10M2203/1025—Aliphatic fractions used as base material
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
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- C10M2205/0206—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers used as base material
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- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/022—Ethene
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- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/04—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing aromatic monomers, e.g. styrene
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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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/17—Fisher Tropsch reaction products
- C10M2205/173—Fisher Tropsch reaction products used as base material
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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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
-
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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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/34—Esters having a hydrocarbon substituent of thirty or more carbon atoms, e.g. substituted succinic acid derivatives
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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
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- C10M2209/084—Acrylate; Methacrylate
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- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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- 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
- C10N2020/02—Viscosity; Viscosity index
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
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- C10N2030/02—Pour-point; Viscosity index
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- C10N2030/04—Detergent property or dispersant property
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- 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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- 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
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- C10N2030/54—Fuel economy
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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
- C10N2030/68—Shear stability
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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
- C10N2030/74—Noack Volatility
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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
- C10N2040/25—Internal-combustion engines
- C10N2040/252—Diesel engines
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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
- C10N2060/00—Chemical after-treatment of the constituents of the lubricating composition
- C10N2060/14—Chemical after-treatment of the constituents of the lubricating composition by boron or a compound containing boron
Definitions
- This invention relates to an engine oil for automobiles (lubricating oil composition for internal combustion engines), and more specifically relates to a lubricating oil composition for diesel engines with superior fuel efficiency, oil consumption control and detergency.
- blow-by gas or gas/lubricating oil mixtures of this kind, are preferably recycled in the engine rather than being exhausted to the atmosphere. In some engines such recycling is carried out by injecting the blow-by gas into the engine's air-intake system so that the lubricating oil is combusted in the piston chambers. Recycling of the blow-by gas solves the problem of emissions but, on the other hand, there is the possibility that problems may arise in that deposits may form in the air-intake system. For example, if the deposits form in the air compressor, the compressor will not work properly and will even be prone to damage.
- compositions having the appropriate viscosity characteristics by using friction modifiers to contribute to friction reducing performance, and by using viscosity index improvers to bring about a reduction in churning resistance and to maintain an oil film at high temperatures while having low viscosity at low temperatures, as described in Japanese Laid-open Patent 2014-210844 .
- WO2015097152 discloses a lubricating composition for use in the crankcase of an engine comprising: (i) a base oil comprising at least one monoester or a mixture of monoesters, wherein said monoester or mixture of monoesters has a kinematic viscosity at 100°C of not more than 4 mm ⁇ 2>/s, a viscosity index of at least 130 and a Noack evaporation loss of not more than 20 wt%; and (ii) polymeric viscosity index improvers selected from (a) one or more comb polymers; (b) a poly (meth) acrylate polymer having 1 to mol% of one or more specific (meth) acrylate structural units represented by the formula, wherein R ⁇ 2> is a straight chain or branched hydrocarbon group having not less than 16 carbon atoms; (c) styrene-diene hydrogenated copolymers; and (d) mixtures thereof.
- EP2256180 discloses a lubricating oil composition which comprises a base oil of lubricating oil having a kinematic viscosity of 3.5 to 10 mm ⁇ 2> /s at 100°C and a viscosity index of 100 or greater and (a) an ethylene- ⁇ -olefin copolymer having a number-average molecular weight of 2,500 to 25,000 and/or (b) a polymethacrylate having a number-average molecular weight of 10,000 to 30,000, wherein a kinematic viscosity of the composition is 5.6 to 15.0 mm ⁇ 2> /s at 100°C.
- the purpose of this invention is to offer a lubricating oil composition for use in diesel engines which, when used as an engine oil for vehicles, does have excellent volatility and engine cleaning properties as well as fuel economising performance.
- a lubricating oil composition for use in diesel engines which, when used as an engine oil for vehicles, has excellent volatility and engine cleaning properties as well as fuel economising performance.
- constituents consisting of constituents
- composition contents of each constituent
- physical characteristics of the lubricating oil composition for diesel engines relating to this invention are described below, but the invention is in no way limited by these.
- the lubricating oil composition of the present embodiment contains a GTL base oil as the base oil, a comb-like PMA based viscosity index improver and a boron-containing dispersant and a boron-containing detergent, and other constituents where necessary.
- GTL gas-to-liquid oils synthesised by the Fischer-Tropsch process in the technology for liquefying fuels from natural gas are used as the base oil for the lubricating oil composition of this invention.
- base oils make it possible, in the framework of this invention, to improve oxidative stability as well as reducing evaporative losses.
- a GTL base oil having a kinematic viscosity at 100°C of 4.5 to 5.5. mm 2 /s is used. If the kinematic viscosity at 100°C of the base oil falls below 4.5, satisfactory volatility is not obtained. If the kinematic viscosity at 100°C exceeds 5.5, satisfactory fuel economy is not obtained.
- a base oil where the kinematic viscosity at 100°C is 4.5 to 5.5 mm 2 /s
- the kinematic viscosity at 100°C of the low viscosity base oil constituent (a1) is below 3.0 mm 2 /s, the amount of evaporation increases, and it becomes difficult to maintain the viscosity of the composition over long periods. If using a high viscosity base oil constituent (a2) where the kinematic viscosity at 100°C exceeds 13 mm 2 /s, the low temperature viscosity at -40°C increases and low-temperature startability worsens. Furthermore, in this case, the ideal viscosity index of the mixed GTL base oil is 120 to 180, but 120 to 150 is even better.
- GTL base oils For these GTL base oils a total sulphur content of less than 10 ppm is typically ideal, and a total nitrogen content of less than 1 ppm is even better.
- GTL base oil product is Shell XHVI (trade name).
- the lubricating oil of the present invention includes a boron-containing detergent as a detergent.
- a boron-containing detergent as a detergent.
- boron-containing alkaline earth metal salts More specifically, mention may be made of borated alkaline earth metal alkylsalicylate detergents and borated alkaline earth metal alkyl toluene sulphonate detergents. Borated calcium alkyltoluene sulphonate is ideal. Instances in the known art may be used for such boron-containing detergents (for example, borated alkaline earth metal alkyl toluene sulphonate detergents may be manufactured in accordance with Japanese Laid-open Patent 2008-297547 ) .
- the lubricating oil composition of the present embodiment here may also include other detergents (for example, metallic detergents) so long as the effect of the invention is not impeded.
- metallic detergents mention may be made of alkaline earth metal sulphonates, alkaline earth metal phenates, alkaline earth metal salicylates and alkaline earth metal naphthenates.
- alkaline earth metals mention may be made of calcium and magnesium. These may be used singly or in combinations of two or more kinds. Normally, use of sulphonates, phenates and salicylates of calcium or magnesium is preferred.
- alkaline earth metal salts especially calcium salts, of alkylphenols, alkylphenol sulphides and alkylphenol Mannich reaction products having straight-chain or branched alkyl groups of carbon number 4 to 30, but preferably 6 to 18.
- alkaline earth metal salicylates it is preferable to use alkaline earth metals salts, and with special preference magnesium salts and/or calcium salts, of alkyl salicylic acids having straight-chain or branched alkyl groups of carbon number 1 to 30, but preferably 6 to 18.
- the base numbers of these may be freely chosen according to the type and purpose of the corresponding lubricating oil.
- the lubricating oil composition of the present invention includes a boron-containing dispersant as a dispersant.
- a boron-containing dispersant for example, polybutenyl succinimide based dispersants, polybutenyl succinamide based dispersants, benzylamine based dispersants and succinate ester based dispersants may be borated.
- Polybutenyl succinimides are obtained from polybutenes obtained by polymerisation of high-purity isobutene or mixtures of 1-butene and isobutene using a fluorinated boron based catalyst or an aluminium chloride based catalyst, and the products having a vinylidene structure at the terminals are normally contained in the amount of 5 to 100 mol%. From the standpoint of sludge-inhibiting effects, it is preferable to include 2 to 5, and in particular 3 to 4, nitrogen atoms in the polyalkylene-polyamine chains.
- polybutenyl succinimide derivatives it is possible to use the so-called modified succinimides in which some or all of the amino and/or imino groups present have been neutralised or amidified by making boric acid compounds or oxygen-containing organic compounds such as alcohols, aldehydes, ketones, alkylphenols, cyclic carbonates and organic acids act on the aforementioned polybutenyl succinimide compounds.
- boric acid compounds or oxygen-containing organic compounds such as alcohols, aldehydes, ketones, alkylphenols, cyclic carbonates and organic acids act on the aforementioned polybutenyl succinimide compounds.
- the lubricating oil composition of the present invention is such as to contain any and at least one of the above mentioned boron-containing detergents and boron-containing dispersants together.
- ZnDTP zinc dithiophosphates
- Typical examples of ZnDTP generally include zinc dialkyldithiophosphates, zinc diaryldithiophosphates and zinc arylalkyldithiophosphates.
- the alkyl groups here may be straight-chain or branched.
- zinc dialkyldithiophosphates having primary or secondary alkyl groups of carbon number 3 to 22 or alkylaryl groups substituted with alkyl groups of carbon number 3 to 18 may be used.
- zinc dialkyldithiophosphates mention may be made of zinc dipropyldithiophosphate, zinc dibutyldithiophosphate, zinc dipentyldithiophosphate, zinc dihexyldithiophosphate, zinc diisopentyldithiophosphate, zinc diethylhexyldithiophosphate, zinc dioctyldithiophosphate, zinc dinonyldithiophosphate, zinc didecyldithiophosphate, zinc didodecyldithiophosphate, zinc dipropylphenyldithiophosphate, zinc dipentylphenyldithiophosphate, zinc dipropylmethylphenyldithiophosphate, zinc dinonylphenyldithiophosphate, zinc didodecylphenyldithiophosphate and zinc didodecylphenyl dithiophosphate.
- the metal deactivators that can be used in the lubricating oil composition of the present embodiment include benzotriazoles and benzotriazole derivatives such as alkyl-tolyltriazoles, and benzimidazoles and benzimidazole derivatives such as tolimidazoles. Further examples are indazole derivatives such as tolylindazoles, benzothiazoles and benzothiazole derivatives such as tolylthiazoles. Mention may also be made of benzoxazole derivatives, thiadiazole derivatives and tolazole derivatives.
- Examples of the anti-oxidants used in the lubricating oil composition of the present embodiment include amine-based anti-oxidants and phenol-based anti-oxidants.
- amine-based anti-oxidants examples include dialkyl-diphenylamines such as p,p'-dioctyl-diphenylamine (Nonflex OD-3, made by Seiko Chemical Ltd), p,p'-di- ⁇ -methylbenzyl-diphenylamine and N-p-butylphenyl-N-p'-octylphenylamine, monoalkyldiphenylamines such as mono-t-butyldiphenylamine and monooctyldiphenylamine, bis(dialkylphenyl)amines such as di(2,4-diethylphenyl)amine and di(2-ethyl-4-nonylphenyl)amine, alkylphenyl-1-naphthylamines
- Phenol-based anti-oxidants include 2-t-butylphenol, 2-t-butyl-4-methylphenol, 2-t-butyl-5-methylphenol, 2,4-di-t-butylphenol, 2,4-dimethyl-6-t-butylphenol, 2-t-butyl-4-methoxyphenol, 3-t-butyl-4-methoxyphenol, 2,5-di-t-butylhydroquinone (Antage DBH, made by Kawaguchi Chemical Industry Co.
- 2,6-di-t-butylphenol 2,6-di-t-butyl-4-alkylphenols such as 2,6-di-t-butyl-4-methylphenol and 2,6-di-t-butyl-4-ethylphenol
- 2,6-di-t-butyl-4-alkoxyphenols such as 2,6-di-t-butyl-4-methoxyphenol and 2,6-di-t-butyl-4-ethoxyphenol.
- alkyl-3-(3,5-di-t-butyl-4-hydroxyphenyl) propionates such as n-octadecyl-3-(3,5-di-t-butyl-4-hydroxyphenyl) propionate (Yoshinox SS, made by Yoshitomi Fine Chemicals Ltd.), n-dodecyl-3-(3,5-di-t-butyl-4-hydroxyphenyl) propionate and 2'-ethylhexyl-3-(3,5-di-t-butyl-4-hydroxyphenyl) propionate, and benzenepropanoic acid 3,5-bis(1,1-dimethyl-ethyl)-4-hydroxy-C7 ⁇ C9 side-chain alkyl ester (Irganox L135, made by Ciba Specialty Chemicals Ltd.), 2,6-
- bisphenols such as 4,4'-butylidenebis(3-methyl-6-t-butylphenol) (Antage W-300, made by Kawaguchi Chemical Industry Ltd.), 4,4'-methylenebis(2,6-di-t-butylphenol) (Ionox 220AH, made by Shell Japan Ltd.), 4,4'-bis(2,6-di-t-butylphenol), 2,2-(di-p-hydroxyphenyl)propane (Bisphenol A, made by Shell Japan Ltd.), 2,2-bis(3,5-di-t-butyl-4-hydroxyphenyl)propane, 4,4'-cyclohexylidenebis(2,6-t-butylphenol), hexamethylene glycol bis[3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate] (Irganox L109, made by Ciba Specialty Chemicals Ltd.), triethylene glycol bis[3-(3-t-butylphenol
- the lubricating oil composition of the present embodiment includes a comb-like polymethacrylate-based viscosity index improver.
- a comb-like polymer is a polymer having a plurality of extended side chains in a comb form relative to the main polymer chain.
- the viscosity index improvers of the present embodiment include, among these comb-like polymers, viscosity index improvers which are comb-like polymethacrylate-based polymers.
- a "viscosity index improver” denotes a polymer having a weight average molecular weight of not less than 50,000.
- Suitable instances of the comb-like polymethacrylate-based viscosity index improvers that may be used in the present embodiment are, for example, the polymers disclosed in Japanese Laid-open Patent 2010-532805 .
- the comb-like polymethacrylate-based viscosity index improvers of the present embodiment ideally have a weight average molecular weight of 200,000 to 600,000, those of 250,000 to 500,000 are even better, and those of 300,00 to 450,000 are best of all.
- the PSSI permanent shear stability index
- Viscoplex 3-201 registered trade mark
- Viscoplex 3-220 registered trade mark
- the lubricating oil composition of the present embodiment may include viscosity index improvers other than comb-like polymethacrylate-based viscosity index improvers.
- viscosity index improvers include one kind or more of polymers selected from the group comprising non-comb-like PMA (polymethacrylates), OCP (olefin copolymers) and SCP (styrene-diene copolymers).
- non-comb-like PMA (polymethacrylate)-based viscosity index improvers it is possible to use without any special restriction those known in the art, but those having a weight average molecular weight of 100,000 to 400,000 are ideal.
- Specific examples of such a PMA are those disclosed in Japanese Laid-open Patent 2014-125569 .
- OCP olefin copolymer
- Viscosity index improvers it is possible to use without any special restriction those known in the art, but those having a weight average molecular weight of 50,000 to 300,000 are ideal. Specific examples of such an OCP are those disclosed in Japanese Laid-open Patent 2014-125569 .
- SCP styrene-diene copolymer
- Viscosity index improvers it is possible to use without any special restriction those known in the art, but those having a weight average molecular weight of 200,000 to 1,000,000 are ideal.
- a specific example of such an SCP is Infineum (registered trade mark) SV150.
- the lubricating oil composition of the present embodiment may contain polymers other than comb-like polymethacrylates as viscosity index improvers.
- Such viscosity index improvers are in general blended in a diluted state in a suitable liquid medium to make them easier to handle.
- organosilicates such as dimethylpolysiloxane, diethyl silicate and fluorosilicones and non-silicone based defoamers such as polyalkylacrylates.
- the base oil content is ideally 60 to 90 mass% in terms of the total mass of the lubricating oil composition, but 65 to 90 mass% is better, and the range 70 to 85 mass% is better yet.
- the content of viscosity index improvers is not specially restricted and may be modified as appropriate. For example it may be 0.05 to 20 mass% in terms of the total mass of the lubricating oil composition.
- the ideal amounts of each of the various viscosity index improvers are given below.
- the content of the comb-like PMA is 1.0 to 6.0 mass% in terms of the total amount of the lubricating oil composition, but 1.0 to 5.0 mass% is better and 1.0 to 4.0 mass% is best of all.
- the non-comb-like PMA content is ideally such that non-comb-like PMA content / total viscosity index improver content is not more than 0.7.
- the OCP content is ideally such that OCP content / total viscosity index improver content is not more than 0.2.
- the SCP content is ideally such that SCP content / total viscosity index improver content is not more than 0.3.
- non-comb-like PMA polymethacrylates
- SCP styrene-diene copolymers
- OCP olefin copolymers
- the content of the boron-containing detergent and boron-containing dispersant must be not less than 0.025 mass% in terms of the boron content conversion value (total amount).
- the upper limit is not more than 0.050 mass%.
- the ideal added amount of anti-oxidants will be in the range 0.01 to 2 mass% in terms of the total mass of the lubricating oil composition.
- the ideal added amount of metal deactivators, individually or in combinations of plural kinds will be in the range 0.01 to 0.5 mass% in terms of the total mass of the lubricating oil composition.
- the ideal added amount of anti-wear agents (for example ZnDTP), individually or in combinations of plural kinds, will be, for example, in the range, as amount of phosphorus (P), 0.01 to 0.10 mass% but more preferably 0.05 to 0.08 mass% in terms of the total mass of the lubricating oil composition.
- the ideal added amount of defoamers, individually or in combinations of plural kinds will be, for example, 0.0001 to 0.01 mass% in terms of the total mass of the lubricating composition.
- the ideal added amount of metallic detergents, individually or in combinations of plural kinds will be, for example, 0.05 to 0.3 mass%, but more preferably 0.1 to 0.2 mass%, in terms of the total mass of the lubricating composition.
- the ideal added amount of ashless dispersants, individually or in combinations of plural kinds will be, for example, be such as to present of the order of 0.01 to 0.3 mass% of nitrogen in terms of the total mass of the lubricating composition.
- HTHS viscosity at 100°C there is an excellent correlation between HTHS viscosity at 100°C and fuel consumption characteristics.
- various methods of measuring HTHS viscosity there are cases where the viscosity obtained by measuring the HTHS viscosity by the capillary method and the viscosity measured by the TBS method differ, depending on the type of viscosity index improver used.
- the viscosity component as measured by the method using a capillary tube type viscometer the capillary method
- TBS method rotational viscometer
- the method of measuring the capillary viscosity here is the value measured in accordance with the ASTM D5481 test method (150°C), taking the temperature condition at 100°C (shear velocity 1.0 * 10 ⁇ 6S -1 ).
- the method of measuring the TBS viscosity is the value measured by means of the method described in Japanese Patent 5565999 .
- DH-2 DI package 1 As shown in the tables, in the examples of embodiment when 14.00% was added, the boron content of the lubricating oil became 0.033 mass% ⁇ including boron-containing dispersant (borated calcium alkyltoluene sulphonate) and boron-containing detergent (borated succinate ester-based dispersant), and amount of other additives same as DI packages 2 and 3 ⁇
- DH-2 DI package 2 As shown in the tables, in the examples of embodiment when 14.00% was added, the boron content of the lubricating oil became 0.027 mass% ⁇ including boron-containing dispersant (borated calcium alkyltoluene sulphonate) and boron-containing detergent (borated succinate ester-based dispersant), and amount of other additives same as DI packages 1 and 3 ⁇
- DH-2 DI package 3 As shown in the tables, in the examples of embodiment when 14.00% was added, the boron content of the lubricating oil became 0.020 mass% ⁇ including boron-containing dispersant (borated calcium alkyltoluene sulphonate) and boron-containing detergent (borated succinate ester-based dispersant), and amount of other additives same as DI packages 1 and 2 ⁇
- the Noack volatility (%) was measured on the basis of ASTM D5800. For the evaluation, if the Noack volatility (%) was not more than 13.0, volatility was marked O (good).
- Hot tube tests were carried out in accordance with the Japan Petroleum Institute's standard JPI-5S-55-99 "Engine oils - Hot tube test.”
- the test conditions were set at a test temperature of 290°C/300°C, test duration 16 hours, sample oil feed rate of 0.3 ml/hour and air flow of 10 ml/hour, and if the evaluation (merit points) of the colour of discoloured portion of the glass tube after completion of the test was at least 7.0, detergency was marked O (good).
- the [capillary viscosity - TBS viscosity) / TBS viscosity] was calculated by following the aforementioned method.
- the (40°C) kinematic viscosity, (100°C) kinematic viscosity, viscosity index (VI), boron content (total value), calcium content (total value), phosphorus content (total value), zinc content (total value), nitrogen content (total value) and molybdenum content (total value) were calculated (the base stock Vk 100°C was the 100°C kinematic viscosity of the base oil mixture).
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Applications Claiming Priority (2)
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| PCT/EP2016/082719 WO2017114836A1 (en) | 2015-12-28 | 2016-12-27 | Lubricating oil composition for diesel engines |
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| EP3397740B1 true EP3397740B1 (en) | 2021-12-08 |
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| JP (1) | JP6677511B2 (ja) |
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| JP6895861B2 (ja) | 2017-09-28 | 2021-06-30 | シェルルブリカンツジャパン株式会社 | 内燃機関用潤滑油組成物 |
| KR102462295B1 (ko) * | 2018-03-06 | 2022-11-03 | 발보린 라이센싱 앤드 인텔렉츄얼 프러퍼티 엘엘씨 | 견인 유체 조성물 |
| EP3766949A4 (en) * | 2018-03-12 | 2021-12-01 | Idemitsu Kosan Co.,Ltd. | LUBRICATING OIL COMPOSITION |
| JP6744047B2 (ja) * | 2018-03-30 | 2020-08-19 | 出光興産株式会社 | 潤滑油組成物、及び潤滑油組成物の使用方法 |
| JP7407133B2 (ja) * | 2018-06-22 | 2023-12-28 | シェブロン・オロナイト・カンパニー・エルエルシー | 潤滑油組成物 |
| CN109321337A (zh) * | 2018-11-01 | 2019-02-12 | 江苏龙蟠科技股份有限公司 | 一种具有低摩擦系数的发动机油组合物及制备方法 |
| JP2020084066A (ja) * | 2018-11-28 | 2020-06-04 | Ｅｍｇルブリカンツ合同会社 | 潤滑油基油組成物 |
| US11732207B2 (en) * | 2020-08-31 | 2023-08-22 | Eneos Corporation | Lubricating oil composition for internal combustion engine |
| US11987766B2 (en) * | 2020-08-31 | 2024-05-21 | Eneos Corporation | Lubricating oil composition for internal combustion engine |
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| GB9709006D0 (en) * | 1997-05-02 | 1997-06-25 | Exxon Chemical Patents Inc | Lubricating oil compositions |
| JP3844892B2 (ja) * | 1998-10-09 | 2006-11-15 | 東燃ゼネラル石油株式会社 | 緩衝器用油圧作動油組成物 |
| US20080300154A1 (en) * | 2007-05-30 | 2008-12-04 | Chevron Oronite Company Llc | Lubricating oil with enhanced protection against wear and corrosion |
| MX2009013917A (es) * | 2007-07-09 | 2010-03-10 | Evonik Rohmax Additives Gmbh | Uso de polímeros tipo peine para reducir el consumo de combustible. |
| JP5330716B2 (ja) * | 2008-03-17 | 2013-10-30 | 出光興産株式会社 | 潤滑油組成物 |
| US20100152072A1 (en) * | 2008-12-17 | 2010-06-17 | Chevron Oronite Company Llc | Lubricating oil compositions |
| JP5606011B2 (ja) * | 2009-06-09 | 2014-10-15 | 昭和シェル石油株式会社 | 潤滑油 |
| FR2964115B1 (fr) * | 2010-08-27 | 2013-09-27 | Total Raffinage Marketing | Lubrifiant moteur |
| WO2013189951A1 (en) * | 2012-06-21 | 2013-12-27 | Shell Internationale Research Maatschappij B.V. | Lubricating composition |
| JP6014540B2 (ja) * | 2013-04-17 | 2016-10-25 | コスモ石油ルブリカンツ株式会社 | 内燃機関用潤滑油組成物 |
| EP3087168B1 (en) * | 2013-12-24 | 2021-03-03 | Shell International Research Maatschappij B.V. | Lubricating composition |
| US20150322369A1 (en) * | 2014-05-09 | 2015-11-12 | Exxonmobil Research And Engineering Company | Method for preventing or reducing low speed pre-ignition |
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| US20200263106A1 (en) | 2020-08-20 |
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| EP3397740A1 (en) | 2018-11-07 |
| CN108431188A (zh) | 2018-08-21 |
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