EP2457985A1 - Lubricating oil composition for lubricating automotive engines - Google Patents
Lubricating oil composition for lubricating automotive engines Download PDFInfo
- Publication number
- EP2457985A1 EP2457985A1 EP11190695A EP11190695A EP2457985A1 EP 2457985 A1 EP2457985 A1 EP 2457985A1 EP 11190695 A EP11190695 A EP 11190695A EP 11190695 A EP11190695 A EP 11190695A EP 2457985 A1 EP2457985 A1 EP 2457985A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oil composition
- lubricating oil
- viscosity
- lubricating
- base oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 90
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 72
- 230000001050 lubricating effect Effects 0.000 title claims description 17
- 239000002199 base oil Substances 0.000 claims abstract description 55
- 239000003112 inhibitor Substances 0.000 claims abstract description 35
- 230000003647 oxidation Effects 0.000 claims abstract description 25
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 25
- 239000002270 dispersing agent Substances 0.000 claims abstract description 20
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000654 additive Substances 0.000 claims abstract description 18
- 238000001704 evaporation Methods 0.000 claims abstract description 17
- 230000008020 evaporation Effects 0.000 claims abstract description 17
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 16
- 150000001342 alkaline earth metals Chemical class 0.000 claims abstract description 14
- 239000011574 phosphorus Substances 0.000 claims abstract description 13
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 13
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003599 detergent Substances 0.000 claims abstract description 12
- 239000003502 gasoline Substances 0.000 claims abstract description 11
- 230000000996 additive effect Effects 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims abstract description 7
- 238000012805 post-processing Methods 0.000 claims abstract description 7
- -1 amine compounds Chemical class 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 19
- 239000003921 oil Substances 0.000 claims description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 9
- 239000011707 mineral Substances 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 8
- 238000004821 distillation Methods 0.000 claims description 7
- 238000006317 isomerization reaction Methods 0.000 claims description 7
- 239000005078 molybdenum compound Substances 0.000 claims description 5
- 150000002752 molybdenum compounds Chemical class 0.000 claims description 5
- 150000002989 phenols Chemical class 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims description 2
- 125000001741 organic sulfur group Chemical group 0.000 claims description 2
- 239000000446 fuel Substances 0.000 abstract description 14
- 230000005764 inhibitory process Effects 0.000 abstract description 11
- 239000011575 calcium Substances 0.000 description 25
- 125000000217 alkyl group Chemical group 0.000 description 22
- KZNICNPSHKQLFF-UHFFFAOYSA-N dihydromaleimide Natural products O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 22
- 229910052791 calcium Inorganic materials 0.000 description 19
- 239000011701 zinc Substances 0.000 description 18
- 229910052725 zinc Inorganic materials 0.000 description 18
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 17
- 229960002317 succinimide Drugs 0.000 description 17
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 16
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 15
- 239000002585 base Substances 0.000 description 14
- 239000010705 motor oil Substances 0.000 description 14
- 239000002480 mineral oil Substances 0.000 description 12
- 235000010446 mineral oil Nutrition 0.000 description 12
- 125000004432 carbon atom Chemical group C* 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000001993 wax Substances 0.000 description 8
- 229910017464 nitrogen compound Inorganic materials 0.000 description 7
- 150000002830 nitrogen compounds Chemical class 0.000 description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 6
- 229920001083 polybutene Polymers 0.000 description 6
- 229910052717 sulfur Inorganic materials 0.000 description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 5
- 150000001412 amines Chemical class 0.000 description 5
- 229910052750 molybdenum Inorganic materials 0.000 description 5
- 239000011733 molybdenum Substances 0.000 description 5
- 125000004433 nitrogen atom Chemical group N* 0.000 description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 4
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 150000008064 anhydrides Chemical class 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 159000000007 calcium salts Chemical class 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000003607 modifier Substances 0.000 description 4
- 150000002898 organic sulfur compounds Chemical class 0.000 description 4
- 229920013639 polyalphaolefin Polymers 0.000 description 4
- 229920000193 polymethacrylate Polymers 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 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 3
- 239000004793 Polystyrene Substances 0.000 description 3
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical class OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 3
- 239000004327 boric acid Substances 0.000 description 3
- ZMRQTIAUOLVKOX-UHFFFAOYSA-L calcium;diphenoxide Chemical compound [Ca+2].[O-]C1=CC=CC=C1.[O-]C1=CC=CC=C1 ZMRQTIAUOLVKOX-UHFFFAOYSA-L 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 238000005660 chlorination reaction Methods 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 125000005266 diarylamine group Chemical group 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- 150000003138 primary alcohols Chemical class 0.000 description 3
- 150000003333 secondary alcohols Chemical class 0.000 description 3
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical compound NC(O)=O KXDHJXZQYSOELW-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
- 229920002367 Polyisobutene Polymers 0.000 description 2
- 125000003342 alkenyl group Chemical group 0.000 description 2
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 2
- 238000006388 chemical passivation reaction Methods 0.000 description 2
- 150000001805 chlorine compounds Chemical class 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 239000012990 dithiocarbamate Substances 0.000 description 2
- 239000010711 gasoline engine oil Substances 0.000 description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- RINCXYDBBGOEEQ-UHFFFAOYSA-N succinic anhydride Chemical compound O=C1CCC(=O)O1 RINCXYDBBGOEEQ-UHFFFAOYSA-N 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical class C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-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
- 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 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
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 description 1
- YFHKLSPMRRWLKI-UHFFFAOYSA-N 2-tert-butyl-4-(3-tert-butyl-4-hydroxy-5-methylphenyl)sulfanyl-6-methylphenol Chemical compound CC(C)(C)C1=C(O)C(C)=CC(SC=2C=C(C(O)=C(C)C=2)C(C)(C)C)=C1 YFHKLSPMRRWLKI-UHFFFAOYSA-N 0.000 description 1
- RKLRVTKRKFEVQG-UHFFFAOYSA-N 2-tert-butyl-4-[(3-tert-butyl-4-hydroxy-5-methylphenyl)methyl]-6-methylphenol Chemical compound CC(C)(C)C1=C(O)C(C)=CC(CC=2C=C(C(O)=C(C)C=2)C(C)(C)C)=C1 RKLRVTKRKFEVQG-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
- KWBXQDNGHQLAMB-UHFFFAOYSA-N 4-sulfanyl-3h-1,3-thiazole-2-thione Chemical compound SC1=CSC(=S)N1 KWBXQDNGHQLAMB-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 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
- 239000005749 Copper compound Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- CFXCGWWYIDZIMU-UHFFFAOYSA-N Octyl-3,5-di-tert-butyl-4-hydroxy-hydrocinnamate Chemical compound CCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 CFXCGWWYIDZIMU-UHFFFAOYSA-N 0.000 description 1
- QAPVYZRWKDXNDK-UHFFFAOYSA-N P,P-Dioctyldiphenylamine Chemical compound C1=CC(CCCCCCCC)=CC=C1NC1=CC=C(CCCCCCCC)C=C1 QAPVYZRWKDXNDK-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 125000005599 alkyl carboxylate group Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- SCJNCDSAIRBRIA-DOFZRALJSA-N arachidonyl-2'-chloroethylamide Chemical compound CCCCC\C=C/C\C=C/C\C=C/C\C=C/CCCC(=O)NCCCl SCJNCDSAIRBRIA-DOFZRALJSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical class C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 150000001639 boron compounds Chemical class 0.000 description 1
- 150000001669 calcium Chemical class 0.000 description 1
- 229940043430 calcium compound Drugs 0.000 description 1
- 150000001674 calcium compounds Chemical class 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001880 copper compounds Chemical class 0.000 description 1
- DMSZORWOGDLWGN-UHFFFAOYSA-N ctk1a3526 Chemical compound NP(N)(N)=O DMSZORWOGDLWGN-UHFFFAOYSA-N 0.000 description 1
- 150000005676 cyclic carbonates Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- LMODBLQHQHXPEI-UHFFFAOYSA-N dibutylcarbamothioylsulfanylmethyl n,n-dibutylcarbamodithioate Chemical compound CCCCN(CCCC)C(=S)SCSC(=S)N(CCCC)CCCC LMODBLQHQHXPEI-UHFFFAOYSA-N 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 150000003949 imides Chemical group 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000006078 metal deactivator Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 1
- KDOVHSDPJGQWKL-UHFFFAOYSA-N octyl 3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propanoate Chemical compound CCCCCCCCOC(=O)CCC1=CC(C)=C(O)C(C(C)(C)C)=C1 KDOVHSDPJGQWKL-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl 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])[H] 0.000 description 1
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 229940113162 oleylamide Drugs 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 150000008301 phosphite esters Chemical class 0.000 description 1
- 125000005541 phosphonamide group Chemical group 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000012925 reference material Substances 0.000 description 1
- 229960001860 salicylate Drugs 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229940014800 succinic anhydride Drugs 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- LBLYYCQCTBFVLH-UHFFFAOYSA-M toluenesulfonate group Chemical class C=1(C(=CC=CC1)S(=O)(=O)[O-])C LBLYYCQCTBFVLH-UHFFFAOYSA-M 0.000 description 1
- WMYJOZQKDZZHAC-UHFFFAOYSA-H trizinc;dioxido-sulfanylidene-sulfido-$l^{5}-phosphane Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S WMYJOZQKDZZHAC-UHFFFAOYSA-H 0.000 description 1
- MBBWTVUFIXOUBE-UHFFFAOYSA-L zinc;dicarbamodithioate Chemical compound [Zn+2].NC([S-])=S.NC([S-])=S MBBWTVUFIXOUBE-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
- C10M169/048—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution, non-macromolecular and macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- 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
-
- 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
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
-
- 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
- C10M2207/287—Partial esters
- C10M2207/289—Partial esters containing free hydroxy groups
-
- 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
-
- 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
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
-
- 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
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
- C10M2215/065—Phenyl-Naphthyl amines
-
- 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
- C10M2215/28—Amides; Imides
-
- 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
- C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
- C10M2219/024—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds of esters, e.g. fats
-
- 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
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
-
- 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
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/046—Overbasedsulfonic acid salts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
-
- 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
-
- 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
- C10M2219/084—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
- C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
- C10M2219/085—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing carboxyl groups; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- 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
- C10M2223/042—Metal salts thereof
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
- C10M2223/045—Metal containing thio derivatives
-
- 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
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/06—Organic compounds derived from inorganic acids or metal salts
- C10M2227/066—Organic compounds derived from inorganic acids or metal salts derived from Mo or W
-
- 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
- C10N2030/02—Pour-point; Viscosity index
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/08—Resistance to extreme temperature
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/74—Noack Volatility
-
- 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
-
- 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
- C10N2040/253—Small diesel engines
-
- 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
- C10N2040/255—Gasoline engines
Definitions
- the present invention relates to a lubricating oil composition of low viscosity type for lubricating automotive engines, which shows good fuel economy.
- the invention is directed to a lubricating oil composition of a low viscosity type for lubricating automotive engines which shows high wear inhibition performance, though which gives good fuel economy.
- the lubricating oil composition of the invention is favorably employable for lubricating a four cycle gasoline engine of motorcycles and a diesel engine mounted on motor cars equipped with an exhaust gas post-processing apparatus.
- lubricating oil compositions to be used for lubricating engines mounted in gasoline engine-mounted automobiles and diesel engine-mounted automobiles engine oils of a low viscosity type giving good fuel economy have been required.
- SAE viscosity grade of 0W20 showing a high temperature-high shear viscosity (HTHS viscosity determined at 150°C under the condition of a shear rate of 10 6 /s) of approx. 2.6 mPa ⁇ s is employed in practice.
- ACEA C1-08 & C2-08 that is, European Specifications for the engine oils, indicate that the lower limit of the high temperature high shear viscosity (at 10 6 /s) is 2.9 mPa ⁇ s s and that the upper limit of Noack evaporation loss is 13%.
- Patent Publication JP 6-306384A describes a fuel economy type-lubricating oil for internal combustion engines comprising a mineral base oil showing a kinematic viscosity of 3-5 cST (at 100°C), a viscosity index of 135 or higher, and a paraffin/total hydrocarbon ratio (namely, % Cp) of 90% or more and a specific amount of an organic molybdenum compound.
- Patent Publication JP 2003-505533A describes a low-volatile fuel economy type lubricating oil composition showing NOACK volatility of 15 wt.% or less, which comprises at least 50 wt.% of a mineral oil, at least 95 wt.% of a saturated product and not more than 25 wt.% of naphthenes, which shows a kinematic viscosity of 4.0-5.5 mm 2 /s, a viscosity index of at least 120 and NOACK volatility of 15.5 wt.% or less, a specific amount of a calcium-containing detergent and a specific amount of an oil-soluble organic friction modifier.
- Patent Publication JP 2000-87070A describes an engine oil composition for four cycle engine motorcycles showing low oil consumption and good fuel economy, which comprises a hydrocarbon base oil showing a kinematic viscosity of 3-10 mm 2 /s (at 100°C) and a viscosity index of 120 or higher or a mixed base oil containing 15 wt.% of more of the hydrocarbon base oil, a zinc dialkyldithiophosphate, a metal-containing detergent, an ashless dispersant, a friction modifier and a viscosity index improver (which imparts a kinematic viscosity of 9.3-16.5 mm 2 /s at 100°C to the oil composition).
- Patent Publication JP 2000-87070A further describes engine oil compositions of SAE viscosity grade of 10W30 and 10W40 for four cycle engine motorcycles.
- a lubricating oil composition having a low viscosity is effective to increase fuel economy of automotive engines. Therefore, as described herein before, a lubricating oil composition of SAE viscosity grade of 0W20 showing a HTHS viscosity (at 10 6 /s) of approximately 2.6 mPa ⁇ s s is employed in practice.
- a lubricating oil composition of SAE viscosity grade of 0W20 which shows a viscosity index in the range of 200 to 240, a high HTHS viscosity (at 150°C and 10 6 /s) such as 2.9 mPa ⁇ s s or higher, a Noack evaporation loss of 13% or less, and a satisfactorily high wear inhibition can be produced by the use of a base oil showing an extremely high viscosity index such as in the range of approximately 133 to 160 which is prepared by subjecting slack wax or synthetic wax obtained by Fischer-Tropsh process to a hydrogenation-isomerization process, distillation and dewaxing and has recently become available on market, as well as optimization of an additive composition and additive contents.
- a lubricating oil composition of SAE viscosity grade of 0W20 gives good fuel economy for the reason of a relatively low kinematic viscosity at either a high temperature or a low temperature.
- a lubricating oil composition of SAE viscosity grade 0W20 for lubricating automotive engines which comprises a base oil and the below-described additive components and which shows a viscosity index in the range of 200 to 240, a high temperature-high shear viscosity (i.e., HTHS viscosity) of not less than 2.9 mPa ⁇ s s at 150°C and a Noack evaporation loss of not more than 13%:
- the amounts of the additive components are in terms of wt.% based on a total amount of the oil composition.
- the lubricating oil composition of SAE viscosity grade 0W20 means a lubricating oil composition satisfying the viscosity property for "0W20" described in "SAE Viscosity Grades for Engine Oils” issued (updated in 2007) by API.
- the high shear viscosity means a shear viscosity determined at the shear rate of 10 6 /s.
- the lubricating oil composition of the invention of SAE viscosity grade 0W20 shows such a high HTHS viscosity as 2.9 m Pa ⁇ s or higher and hence shows good fuel economy and good wear inhibition. Accordingly, the lubricating oil composition of the invention is favorably employable for lubricating a four cycle gasoline engine of motorcycles as well as a diesel engine of automotives equipped with an exhaust gas post-processing apparatus.
- the base oil of the lubricating oil composition according to the invention preferably is a mineral oil.
- the base oil can be a mixture of a relatively large amount (not less than 50 wt.%) of a mineral oil and a relatively small amount (less than 50 wt.%) of a synthetic oil.
- the base oil for the lubricating oil composition of the invention preferably is a base oil (specifically a mineral oil) that has a saturated hydrocarbon content of 95 wt.% or more, particularly 98 wt.% or more, and shows a kinematic viscosity in the range of 2 to 9 mm 2 /s and a viscosity index of 133 or higher (particularly 135 or higher, further particularly 145 or higher).
- the preferred base oil may be a single base oil or a mixture of two or more base oils.
- the preferred base oil can be mixed with a small amount of a base oil having a different composition and showing different characteristics. However, it is preferred that the mixture of base oils has the above-mentioned preferred composition and shows the above-mentioned preferred characteristics.
- the above-mentioned preferred base oil preferably shows an evaporation loss (according to ASTM D5800) of 16% or less, more preferably 15% or less, further preferably 13% or less. If the engine oil (i.e., lubricating oil composition) employs a base oil showing a high evaporation loss, the engine oil shows high oil consumption and high viscosity increase when the engine oil is kept at elevated temperatures. Thus, the fuel economy decreases.
- the base oil preferably is a base oil having a high viscosity index in the range of 133-160, which is produced by subjecting slack wax or synthetic wax obtained from natural gas by Fischer-Tropsch process to a hydrogenation-isomerization process, distillation and dewaxing, in the case that the base oil is a mineral base oil.
- the above-mentioned high viscosity index base oil is preferably employed for the preparation of the lubricating oil composition of the invention, because the base oil shows a high kinematic viscosity at 100°C and a good low temperature viscosity characteristic and lowers the evaporation loss of the oil composition.
- the above-mentioned mineral base oil having a high viscosity index can be used in a mixture with a synthetic oil.
- the synthetic oil preferably shows the above-mentioned preferred characteristics.
- the preferred synthetic oil can be selected from a variety of known synthetic oils. Examples of the known synthetic oils include esters, alkylbenzenes, and poly- ⁇ -olefins (PAOs). Most preferred is poly- ⁇ -olefins (PAOs).
- the lubricating oil composition of the invention contains a nitrogen-containing ashless dispersant (component (a)) in an amount of 0.01 to 0.3 wt.% in terms of nitrogen content.
- the nitrogen-containing ashless dispersant preferably has a weight average molecular weight in the range of 4,500 to 20,000.
- the "weight average molecular weight” used herein means a molecular weight determined by GPC analysis (reference material: polystyrene).
- nitrogen-containing ashless dispersants examples include an alkenyl- or alkyl-succinimide (wherein the alkenyl or alkyl group is derived from polyolefin) or its derivatives.
- the nitrogen-containing ashless dispersant is preferably contained in the lubricating oil composition in an amount of 0.01 to 0.3 wt.%, based on the total amount of the lubricating oil composition.
- a representative succinimide dispersant can be prepared from a succinic anhydride having a high molecular weight alkyl or alkenyl substituent and a polyalkyleneamine containing average 4-10 nitrogen atoms, preferably 5-7 nitrogen atoms, per one molecule.
- the high molecular weight alkyl or alkenyl substituent is preferably derived from polyalkene, particularly polybutene, having a number average molecular weight of approx. 900 to 5,000.
- the process for obtaining the polybutenyl-succinic acid anhydride by the reaction of polybutene and maleic anhydride is generally performed by the chlorination process using a chloride compound.
- the chlorination process is advantageous in its reaction yield.
- the reaction product obtained by the chlorination process contains a large amount (for instance, approx. 2,000 ppm) of chlorine. If the thermal reaction process using no chloride compound is employed, the reaction product contains only an extremely small chlorine (for instance, 30 ppm or less).
- a highly reactive polybutene containing a methylvinylidene structure at least approx.
- the thermal reaction process can give a high reaction yield. If the reaction yield is high, the reaction product necessarily contains a reduced amount of the unreacted polybutene. This means that a dispersant containing a large amount of the effective component (succinimide) is obtained. Accordingly, it is preferred that the polybutenyl succinic acid anhydride is produced from the highly reactive polybutene by the thermal reaction and that the produced polybutenyl succinic acid anhydride is reacted with polyalkylenepolyamine having an average nitrogen atom number in the range of 4 to 10 (in one molecule) to give the succinimide.
- the succinimide further can be reacted with boric acid, alcohol, aldehyde, ketone, alkylphenol, cyclic carbonate, organic acid or the like, to give a modified succinimide.
- a borated alkenyl(or alkyl)-succinimide which is obtained by the reaction with boric acid or a boron compound is advantageous from the viewpoints of thermal and oxidation stability.
- the succinimide can be one of mono-type, bis-type and poly-type which are named according to the imide structure(s) contained in the succinimide molecule.
- the succinimide of bis-type or poly-type can be preferably employed as the ashless dispersant in the lubricating oil composition of the invention.
- nitrogen-containing ashless dispersants include polymeric succinimide dispersants derived from ethylene- ⁇ -olefin copolymer (for instance, the molecular weight is 1,000 to 15,000), and alkenylbenzyl amine ashless dispersants.
- the nitrogen-containing ashless dispersant can be replaced with a nitrogen-containing dispersant-type viscosity index improver.
- a nitrogen-containing dispersant-type viscosity index improver a nitrogen-containing olefin copolymer or a nitrogen-containing polymethacrylate each having a weight mean molecular weight of 90,000 or more (in terms of polystyrene converted-molecular weight determined by GPC analysis).
- the former nitrogen-containing olefin copolymer is advantageous.
- the lubricating oil composition of the invention necessarily contains the nitrogen-containing ashless dispersant and/or the nitrogen-containing dispersant-type viscosity index improver. If desired, the other ashless dispersants such as an alkenylsuccinic acid ester dispersant can be employed in combination.
- the lubricating oil composition of the invention contains an alkaline earth metal-containing detergent (component (b)) in an amount of 0.08 to 0.3 wt.% in terms of alkaline earth metal content.
- alkaline earth metals include calcium, barium and magnesium. Preferred is calcium.
- the alkaline earth metal-containing detergent preferably is an alkaline earth metal sulfonate or an alkaline earth metal phenate.
- the alkaline earth metal sulfonate and alkaline earth metal phenate can be employed in combination.
- these metal-containing detergents can be used in combination with other metal-containing detergent such as an alkaline earth metal (particularly calcium) salt of an alkyl-salicylate and/or an alkylcarboxylate.
- overbased calcium sulfonates having a TBN in the range of 150 to 500 mgKOH/g and low base number calcium sulfonates having a TBN in the range of 5 to 60 mgKOH/g.
- the overbased calcium sulfonate preferably is an overbased calcium salt of an alkylated benzenesulfonate having an alkyl group of 10 or more carbon atoms and an overbased calcium salt of an alkylated toluenesulfonate having an alkyl group of 10 or more carbon atoms.
- the degree of the overbasing preferably is in the range of 5 to 25.
- the low base number calcium sulfonate preferably is a calcium salt of an alkylated benzenesulfonate or a calcium salt of an alkylated benzenesulfonate.
- the alkyl group preferably contains 10 or more carbon atoms.
- the low base number calcium sulfonate preferably is a neutral salt or the like (preferably having an overbasing degree in the range of 0.1 to 1.5) having been subjected to no overbasing process. Preferred is a combination of an overbased calcium sulfonate and a low base number calcium sulfonate.
- the sulfonate can be a synthetic sulfonate or a petroleum-origin sulfonate which is prepared by the steps of sulfonating a lubricating oil fraction of a mineral oil and reacting it with a calcium compound. Therefore, the low base number calcium sulfonate and/or the overbased calcium sulfonate derived from petroleum products can also be favorably employed.
- overbased sulfurized calcium phenates having a TBN of 120-350 mgKOH/g.
- Preferred is an overbased sulfurized calcium phenate having an alkyl group of 10 carbon atoms or more.
- the lubricating oil composition of the invention contains a phosphorus-containing wear inhibitor (component (c)) in an amount of 0.05 to 0.12 wt.% in terms of phosphorus content.
- the phosphorus-containing wear inhibitor preferably is zinc dihydrocarbyldithiophosphate or a zinc dihydrocarbylphosphate, both of which are known as multifunctional lubricating oil additives showing oxidation inhibition performance and wear inhibition performance.
- the zinc dihydrocarbyldithiophosphate generally is a zinc dialkyldithiophosphate having a primary alkyl or a secondary alkyl. From the viewpoint of anti-wear performance, preferred is a zinc dialkyldithiophosphate having a secondary alkyl group which is derived from a secondary alcohol having 3 to 18 carbon atoms. In contrast, a zinc dialkyldithiophosphate having a primary alkyl group which is derived from a primary alcohol having 3 to 18 carbon atoms is advantageous in its excellent heat resistance and friction reducing function.
- the zinc dialkyldithiophosphate having a secondary alkyl group and the zinc dialkyldithiophosphate having a primary alkyl group can be used in combination.
- a zinc dialkyldithiophosphate having a primary alkyl group and a secondary alkyl group which can be obtained from a mixture of a primary alcohol and a secondary alcohol can also be favorably employed.
- a zinc dialkylaryldithiophosphate e.g., zinc dialkylaryldithiophosphate obtainable using dodecylphenyl
- zinc dialkylaryldithiophosphate obtainable using dodecylphenyl
- the phosphorus-containing wear inhibitor can be a phosphorus ester, a phosphite ester, or a thiophosphate ester.
- the lubricating oil composition of the invention further contains at least one oxidation inhibitor (component (d)) selected from the group consisting of phenol compounds (phenolic oxidation inhibitors), amine compounds (amine oxidation inhibitors), and molybdenum compounds (molybdenum oxidation inhibitors) in an amount of 0.1 to 7 wt.%.
- at least one oxidation inhibitor selected from the group consisting of phenol compounds (phenolic oxidation inhibitors), amine compounds (amine oxidation inhibitors), and molybdenum compounds (molybdenum oxidation inhibitors) in an amount of 0.1 to 7 wt.%.
- a representative phenolic oxidation inhibitor is a hindered phenol compound, and a representative amine oxidation inhibitor is a diarylamine compound.
- the hindered phenol compound and diarylamine compound are advantageous because both further provide high detergency at high temperatures.
- the diarylamine oxidation inhibitor is particularly advantageous because it has a base number derived from the contained nitrogen which serves to increase detergency at high temperatures.
- the hindered phenol oxidation inhibitor is effective to reduce oxidative deterioration caused by NO x .
- hindered phenol oxidation inhibitors examples include 2,6-di-t-butyl-p-cresol, 4,4'-methylenebis(2,6-di-t-butylphenol), 4,4'-methylenebis(6-t-butyl-o-cresol), 4,4'-isopropylidenebis(2,6-di-t-butylphenol), 4,4'-bis(2,6-di-t-butylphenol), 2,2'-methylenebis(4-methyl-6-t-butylphenol), 4,4'-thiobis(2-methyl-6-t-butylphenol), 2,2-thio-diethylenebis[3-(3,5-di-t-butyl-4-hydoxyphenyl)propionate], octyl 3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate, octadecyl 3-(3,5-di-t-butyl-4-hydroxyphenyl)propionat
- diarylamine oxidation inhibitors examples include alkyldiphenylamine having a mixture of alkyl groups of 4 to 9 carbon atoms, p,p'-dioctyldiphenylamine, phenyl-1-naphthylamine, phenyl-2-naphthylamine, alkylated N-naphthylamine, and alkylated phenyl-1-naphthylamine.
- the molybdenum oxidation inhibitor can be an oxymolybdenum complex of a basic nitrogen compound.
- Preferred examples of the oxymolybdenum complex of a basic nitrogen compound include an oxymolybdenum complex of succinimide and an oxymolybdenum complex of carboxylamide.
- the oxymolybdenum complex of a basic-nitrogen compound can be prepared by the following process:
- Molybdenum-containing compounds other than the above-mentioned oxymolybdenum complex of a basic nitrogen compound can be employed in place of the oxymolybdenum complex of a basic nitrogen compound or in combination with the oxymolybdenum complex of a basic nitrogen compound.
- the above-mentioned "other molybdenum-containing compound” can be sulfurized oxymolybdenum dithiocarbamate or sulfurized oxymolybdenum dithiophosphate.
- Each of the phenolic oxidation inhibitor (particularly, hindered phenol oxidation inhibitor), amine oxidation inhibitor (particularly, diarylamine oxidation inhibitor) and a molybdenum oxidation inhibitor (particularly, oxymolybdenum complex of a basic nitrogen compound) can be employed singly or in combination. If desired, other oil soluble oxidation inhibitors can be employed in combination with the above-mentioned oxidation inhibitor(s).
- the lubricating oil composition of the invention further contains a viscosity index improver (component (e)) in an amount of 0.5 to 20 wt.%.
- a viscosity index improver component (e)
- examples of the viscosity index improvers include polymethacryl viscosity improvers such as polyalkyl methacrylate and olefin copolymer viscosity index improvers such as ethylene-propylene copolymer, styrenebutadiene copolymer, and polyisoprene.
- the viscosity index improvers can be used singly or in combination.
- the lubricating oil composition of the invention preferably contains an organic sulfur compound which is effective in wear inhibition and oxidation inhibition.
- organic sulfur compounds include sulfurized olefin, sulfurized ester, sulfurized oil/fat, polysulfide, dimercaptothiazole, dithiophosphate ester, and dithiocarbamate.
- the lubricating oil composition of the invention may further contain an alkali metal borate hydrate for increasing high temperature detergency and a basic number.
- the alkali metal borate hydrate can be contained in an amount of 5 wt.% or less, particularly 0.01 to 5 wt.%.
- Some alkali metal borate hydrates contain an ash component and a sulfur component. Therefore, the alkali metal borate hydrate can be used in an appropriate amount in consideration of the composition of the resulting lubricating oil composition.
- the lubricating oil composition of the invention may further contain a small amount of various auxiliary additives. Examples of the auxiliary additives are described below.
- organic amide compounds e.g., oleylamide
- benzotriazol compounds and thiadiazol compounds functioning as metal deactivating agent
- nonionic polyoxyalkylene surface active agents such as polyoxyethylene alky
- the auxiliary additives can be preferably incorporated into the lubricating oil composition in an amount of 3 wt% or less (particularly, 0.001 to 3 wt.%).
- a lubricating oil composition of the invention (SAE viscosity grade: 0W20, High temperature high shear viscosity: 2.9 mPa ⁇ s or higher) was prepared using the following additives and base oil in Examples 1 and 2.
- a lubricating oil composition (SAE viscosity grade: 0W20, High temperature high shear viscosity: 2.6 mPa ⁇ s) was prepared.
- a lubricating oil composition SAE viscosity grade: 10W30, High temperature high shear viscosity: 2.9 mPa ⁇ s or higher) was prepared.
- Base oil-1 a mixture of base oil (a) and base oil (b) in a weight ratio of 60:40 (base oil (a):base oil (b), viscosity index: 142; kinematic viscosity at 100°C: 4.9 mm 2 /s; Noack evaporation loss: 10.1%) in which the base oil (a) was a mineral oil-origin base oil prepared by subjecting slack wax to hydrogenation-isomerization, distillation and dewaxing(viscosity index: 137; kinematic viscosity at 100°C: 4.1 mm 2 /s; Noack evaporation loss: 13.6%) and base oil (b) was a mineral oil-origin base oil prepared by subjecting slack wax to hydrogenation-isomerization, distillation and dewaxing; viscosity index: 148; kinematic viscosity at 100°C: 6.6 mm 2 /s, Noack evaporation loss: 5.0
- Base oil-2 hydrocracked mineral oil (viscosity index: 128; kinematic viscosity at 100°C: 4.2 mm 2 /s, Noack evaporation loss: 14.2%).
- Base oil-3 a mixture of hydrocracked mineral oil (a) and hydrocracked mineral oil (b) in a weight ratio of 73:27 (mineral oil (a):mineral oil (b); viscosity index: 115; kinematic viscosity at 100°C: 6.7 mm 2 /s, Noack evaporation loss: 10.8%) in which the hydrocracked mineral oil (a) had viscosity index: 122; kinematic viscosity at 100°C: 5.6 mm 2 /s, Noack evaporation loss: 12.4%, and the hydrocracked mineral oil (b) had viscosity index: 99; kinematic viscosity at 100°C: 10.7 mm 2 /s, Noack evaporation loss: 6.0%.
- the base oil was used in an amount to give in combination with the additives a total 100 wt.% of the lubricating oil composition.
- Zinc di(secondary alkyl)dithiophosphate (P: 7.2 wt.%, Zn: 7.8 wt.%, S: 14 wt.%, prepared by using a secondary alcohol having 3 to 8 carbon atoms): 0.06 wt.% (in terms ofP content)
- Zinc di(primary alkyl)dithiophosphate (P: 7.3 wt.%, Zn: 8.4 wt.%, S: 14 wt.%, prepared by using a primary alcohol having 8 carbon atoms): 0.03 wt.% (in terms ofP content)
- Dialkyldiphenylamine having a mixture of C 4 and C 8 alkyl groups (N: 4.6 wt.%): 0.45 wt.%
- Each of the lubricating oil compositions was subjected to Shell Four Ball Test under the conditions of oil temperature of 75°C, load of 40 kgf, and rotation for 60 minutes at 1,200 rpm, to evaluate its wear inhibition property.
- the wear inhibition property was evaluated by determining a wear mark formed on the surfaces of the tested balls.
- Table 1 shows physical properties of the lubricating oil compositions of Examples 1, 2, Comparison Example, and Reference Example.
- Table 1 Ex. 1 Ex. 2 Com.Ex. Ref.Ex. SAE 0W20 0W20 0W20 10W30 Base oil Base oil-1 Base oil-1 Base oil-2 Base oil-3 HTHS viscosity 2.97 3.00 2.62 3.15 Kinematic viscosity at 100°C at 40°C 9.16 41.9 9.20 42.2 8.02 36.3 10.1 65.7
- Viscosity index 209 209 203 139 Cranking viscosity at -25°C - - - 5815 at -35°C 5854 5859 5254 - Pumping viscosity Pass Pass Pass Pass Pass (-40°C) (-40°C) (-30°C) Noack evaporation loss (%) 9.9 10.3 14.0 11.5 Shell wear test, Average wear diameter (mm) 0.49 0.48 0.55 0.49
- Pass for Pumping viscosity means that the lubricating oil composition satisfies the pumping viscosity at -40°C which is indicated for SAE 0W20 or the pumping viscosity at - 30°C which is indicated for SAE 10W30.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
Description
- The present invention relates to a lubricating oil composition of low viscosity type for lubricating automotive engines, which shows good fuel economy. In more detail, the invention is directed to a lubricating oil composition of a low viscosity type for lubricating automotive engines which shows high wear inhibition performance, though which gives good fuel economy. In particular, the lubricating oil composition of the invention is favorably employable for lubricating a four cycle gasoline engine of motorcycles and a diesel engine mounted on motor cars equipped with an exhaust gas post-processing apparatus.
- Recently, the demand for enhancing fuel economy of automobiles has prominently increased. As the lubricating oil compositions to be used for lubricating engines mounted in gasoline engine-mounted automobiles and diesel engine-mounted automobiles, engine oils of a low viscosity type giving good fuel economy have been required. At present, a lubricating oil composition of SAE viscosity grade of 0W20 showing a high temperature-high shear viscosity (HTHS viscosity determined at 150°C under the condition of a shear rate of 106/s) of approx. 2.6 mPa·s is employed in practice.
- It is noted, however, that the engine oils for four cycle gasoline engines of motorcycles are also employed for lubricating transmission system. Therefore, increase of wear (namely, lowering of anti-wear performance) of transmission gears and the like of the transmission system may be problematic. In consideration of these possible troubles, JASO T903-2006 indicates that the engine oils for four cycle gasoline engines of motor cycles should have a HTHS viscosity (at 106/s) of 2.9 mPa·s or higher. It has been noted, however, that the known engine oils of SAE viscosity grade 0W20 cannot give such high temperature-high shear viscosity. For this reason, the conventional engine oils of low viscosity type for four cycle gasoline engines of motorcycles only satisfy SAE viscosity grade of 10W30, 5W30 or 0W30.
- As for engine oils for diesel engines mounted on motor cars equipped with a diesel particulate filter, ACEA C1-08 & C2-08, that is, European Specifications for the engine oils, indicate that the lower limit of the high temperature high shear viscosity (at 106/s) is 2.9 mPa·s s and that the upper limit of Noack evaporation loss is 13%.
- Patent Publication
JP 6-306384A - Patent Publication
JP 2003-505533A - Patent Publication
JP 2000-87070A JP 2000-87070A - It is known that not only improvement of engine structure but also use of a lubricating oil composition having a low viscosity is effective to increase fuel economy of automotive engines. Therefore, as described herein before, a lubricating oil composition of SAE viscosity grade of 0W20 showing a HTHS viscosity (at 106/s) of approximately 2.6 mPa·s s is employed in practice. However, since this fuel economy type gasoline engine oil of SAE viscosity grade of 0W20 for four-wheel passenger cars does not show a satisfactorily high HTHS viscosity, there probably raises a problem in wear inhibition when the fuel economy type gasoline engine oil of SAE viscosity grade of 0W20 is employed for four-cycle gasoline engines of motorcycles in which the engine oil is also used for lubricating the transmission system.
- It has been found by the study of the present inventors that a lubricating oil composition of SAE viscosity grade of 0W20 which shows a viscosity index in the range of 200 to 240, a high HTHS viscosity (at 150°C and 106/s) such as 2.9 mPa·s s or higher, a Noack evaporation loss of 13% or less, and a satisfactorily high wear inhibition can be produced by the use of a base oil showing an extremely high viscosity index such as in the range of approximately 133 to 160 which is prepared by subjecting slack wax or synthetic wax obtained by Fischer-Tropsh process to a hydrogenation-isomerization process, distillation and dewaxing and has recently become available on market, as well as optimization of an additive composition and additive contents.
- The invention disclosed herein has been based on the above-mentioned finding.
- It should be noted that a lubricating oil composition of SAE viscosity grade of 0W20 gives good fuel economy for the reason of a relatively low kinematic viscosity at either a high temperature or a low temperature.
- Accordingly, there is provided by the present invention a lubricating oil composition of SAE viscosity grade 0W20 for lubricating automotive engines which comprises a base oil and the below-described additive components and which shows a viscosity index in the range of 200 to 240, a high temperature-high shear viscosity (i.e., HTHS viscosity) of not less than 2.9 mPa·s s at 150°C and a Noack evaporation loss of not more than 13%:
- a) a nitrogen-containing ashless dispersant in an amount of 0.01-0.3 wt.% in terms of nitrogen content;
- b) an alkaline earth metal-containing detergent in an amount of 0.08-0.3 wt.% in terms of alkaline earth metal content;
- c) a phosphorus-containing wear inhibitor in an amount of 0.05-0.12 wt.% in terms of phosphorus content;
- d) an oxidation inhibitor selected from the group consisting of amine compounds, phenol compounds, and molybdenum compounds, in an amount of 0.01-7 wt.%, and
- e) a viscosity index improver in an amount of 0.5-20 wt.%.
- In the above-described lubricating oil composition, the amounts of the additive components are in terms of wt.% based on a total amount of the oil composition.
- The lubricating oil composition of SAE viscosity grade 0W20 according to the invention means a lubricating oil composition satisfying the viscosity property for "0W20" described in "SAE Viscosity Grades for Engine Oils" issued (updated in 2007) by API. The high shear viscosity means a shear viscosity determined at the shear rate of 106/s.
- There is also provided by the invention a method of lubricating a diesel engine mounted on motor cars equipped with an exhaust gas post-processing apparatus using a lubricating oil composition of the invention.
- The lubricating oil composition of the invention of SAE viscosity grade 0W20 shows such a high HTHS viscosity as 2.9 m Pa·s or higher and hence shows good fuel economy and good wear inhibition. Accordingly, the lubricating oil composition of the invention is favorably employable for lubricating a four cycle gasoline engine of motorcycles as well as a diesel engine of automotives equipped with an exhaust gas post-processing apparatus.
- The preferred embodiments of the lubricating oil composition according to the invention are described below.
- (1) The lubricating oil composition shows a kinematic viscosity of not lower than 8.5 mm2/s but not higher than 9.3 mm2/s.
- (2) The base oil comprises a mineral base oil showing a kinematic viscosity in the range of 2 to 9 mm2/s at 100°C and a viscosity index in the range of 133 to 160.
- (3) The base oil contains not less than 80 wt.% of a mineral base oil showing a kinematic viscosity in the range of 2 to 9 mm2/s at 100°C and a viscosity index in the range of 133 to 160.
- (4) The base oil shows a viscosity index in the range of 133 to 160 and is produced by subjecting slack wax or synthetic wax obtained by Fischer-Tropsch process to a hydrogenation-isomerization process, distillation and dewaxing.
- (5) The base oil is a mixture of two or more base oil components having a viscosity index of 130 or more but having a different viscosity.
- (6) The lubricating oil composition contains an organic sulfur-containing compound.
- (7) The nitrogen-containing ashless additive comprises a succinimide compound having bis-structure.
- (8) The alkaline earth metal-containing detergent comprises an over-based calcium-containing compound selected from the group consisting of an over-based calcium sulfonate and an over-based calcium phenate.
- (9) The phosphorus-containing wear inhibitor comprises a phosphorus-containing compound is selected from the group consisting of zinc dihydrocarbyldithiophosphate and zinc dihydrocarbylphosphate.
- (10) The viscosity index improver comprises a polymethacrylate viscosity index improver.
- (11) The lubricating oil is used for lubricating motorcycles equipped with a four cycle gasoline engine.
- (12) The lubricating oil composition is used for lubricating a diesel engine mounted on motor cars equipped with an exhaust gas post-processing apparatus.
- The base oil and additive components used for formulating the lubricating oil composition of the invention are described below in more detail.
- The base oil of the lubricating oil composition according to the invention preferably is a mineral oil. Alternatively, the base oil can be a mixture of a relatively large amount (not less than 50 wt.%) of a mineral oil and a relatively small amount (less than 50 wt.%) of a synthetic oil.
- The base oil for the lubricating oil composition of the invention preferably is a base oil (specifically a mineral oil) that has a saturated hydrocarbon content of 95 wt.% or more, particularly 98 wt.% or more, and shows a kinematic viscosity in the range of 2 to 9 mm2/s and a viscosity index of 133 or higher (particularly 135 or higher, further particularly 145 or higher). The preferred base oil may be a single base oil or a mixture of two or more base oils. The preferred base oil can be mixed with a small amount of a base oil having a different composition and showing different characteristics. However, it is preferred that the mixture of base oils has the above-mentioned preferred composition and shows the above-mentioned preferred characteristics.
- The above-mentioned preferred base oil preferably shows an evaporation loss (according to ASTM D5800) of 16% or less, more preferably 15% or less, further preferably 13% or less. If the engine oil (i.e., lubricating oil composition) employs a base oil showing a high evaporation loss, the engine oil shows high oil consumption and high viscosity increase when the engine oil is kept at elevated temperatures. Thus, the fuel economy decreases.
- There are no specific limitations with respect to the origin of the desired base oil. The base oil, however, preferably is a base oil having a high viscosity index in the range of 133-160, which is produced by subjecting slack wax or synthetic wax obtained from natural gas by Fischer-Tropsch process to a hydrogenation-isomerization process, distillation and dewaxing, in the case that the base oil is a mineral base oil. The above-mentioned high viscosity index base oil is preferably employed for the preparation of the lubricating oil composition of the invention, because the base oil shows a high kinematic viscosity at 100°C and a good low temperature viscosity characteristic and lowers the evaporation loss of the oil composition.
- The above-mentioned mineral base oil having a high viscosity index can be used in a mixture with a synthetic oil. The synthetic oil preferably shows the above-mentioned preferred characteristics. The preferred synthetic oil can be selected from a variety of known synthetic oils. Examples of the known synthetic oils include esters, alkylbenzenes, and poly-α-olefins (PAOs). Most preferred is poly- α -olefins (PAOs).
- The lubricating oil composition of the invention contains a nitrogen-containing ashless dispersant (component (a)) in an amount of 0.01 to 0.3 wt.% in terms of nitrogen content. The nitrogen-containing ashless dispersant preferably has a weight average molecular weight in the range of 4,500 to 20,000. The "weight average molecular weight" used herein means a molecular weight determined by GPC analysis (reference material: polystyrene).
- Examples of the nitrogen-containing ashless dispersants include an alkenyl- or alkyl-succinimide (wherein the alkenyl or alkyl group is derived from polyolefin) or its derivatives. The nitrogen-containing ashless dispersant is preferably contained in the lubricating oil composition in an amount of 0.01 to 0.3 wt.%, based on the total amount of the lubricating oil composition. A representative succinimide dispersant can be prepared from a succinic anhydride having a high molecular weight alkyl or alkenyl substituent and a polyalkyleneamine containing average 4-10 nitrogen atoms, preferably 5-7 nitrogen atoms, per one molecule. The high molecular weight alkyl or alkenyl substituent is preferably derived from polyalkene, particularly polybutene, having a number average molecular weight of approx. 900 to 5,000.
- The process for obtaining the polybutenyl-succinic acid anhydride by the reaction of polybutene and maleic anhydride is generally performed by the chlorination process using a chloride compound. The chlorination process is advantageous in its reaction yield. However, the reaction product obtained by the chlorination process contains a large amount (for instance, approx. 2,000 ppm) of chlorine. If the thermal reaction process using no chloride compound is employed, the reaction product contains only an extremely small chlorine (for instance, 30 ppm or less). Moreover, if a highly reactive polybutene (containing a methylvinylidene structure at least approx. 50%) is employed in place of the conventional polybutene (mainly containing a α -olefin structure), even the thermal reaction process can give a high reaction yield. If the reaction yield is high, the reaction product necessarily contains a reduced amount of the unreacted polybutene. This means that a dispersant containing a large amount of the effective component (succinimide) is obtained. Accordingly, it is preferred that the polybutenyl succinic acid anhydride is produced from the highly reactive polybutene by the thermal reaction and that the produced polybutenyl succinic acid anhydride is reacted with polyalkylenepolyamine having an average nitrogen atom number in the range of 4 to 10 (in one molecule) to give the succinimide. The succinimide further can be reacted with boric acid, alcohol, aldehyde, ketone, alkylphenol, cyclic carbonate, organic acid or the like, to give a modified succinimide. Particularly, a borated alkenyl(or alkyl)-succinimide which is obtained by the reaction with boric acid or a boron compound is advantageous from the viewpoints of thermal and oxidation stability. The succinimide can be one of mono-type, bis-type and poly-type which are named according to the imide structure(s) contained in the succinimide molecule. The succinimide of bis-type or poly-type can be preferably employed as the ashless dispersant in the lubricating oil composition of the invention.
- Other examples of the nitrogen-containing ashless dispersants include polymeric succinimide dispersants derived from ethylene- α -olefin copolymer (for instance, the molecular weight is 1,000 to 15,000), and alkenylbenzyl amine ashless dispersants.
- In the lubricating oil composition of the invention, the nitrogen-containing ashless dispersant can be replaced with a nitrogen-containing dispersant-type viscosity index improver. As the nitrogen-containing dispersant-type viscosity index improver, a nitrogen-containing olefin copolymer or a nitrogen-containing polymethacrylate each having a weight mean molecular weight of 90,000 or more (in terms of polystyrene converted-molecular weight determined by GPC analysis). In consideration of thermal stability, the former nitrogen-containing olefin copolymer is advantageous.
- The lubricating oil composition of the invention necessarily contains the nitrogen-containing ashless dispersant and/or the nitrogen-containing dispersant-type viscosity index improver. If desired, the other ashless dispersants such as an alkenylsuccinic acid ester dispersant can be employed in combination.
- The lubricating oil composition of the invention contains an alkaline earth metal-containing detergent (component (b)) in an amount of 0.08 to 0.3 wt.% in terms of alkaline earth metal content. Examples of the alkaline earth metals include calcium, barium and magnesium. Preferred is calcium. The alkaline earth metal-containing detergent preferably is an alkaline earth metal sulfonate or an alkaline earth metal phenate. The alkaline earth metal sulfonate and alkaline earth metal phenate can be employed in combination. In addition, these metal-containing detergents can be used in combination with other metal-containing detergent such as an alkaline earth metal (particularly calcium) salt of an alkyl-salicylate and/or an alkylcarboxylate.
- As the calcium sulfonate, there are known overbased calcium sulfonates having a TBN in the range of 150 to 500 mgKOH/g and low base number calcium sulfonates having a TBN in the range of 5 to 60 mgKOH/g. The overbased calcium sulfonate preferably is an overbased calcium salt of an alkylated benzenesulfonate having an alkyl group of 10 or more carbon atoms and an overbased calcium salt of an alkylated toluenesulfonate having an alkyl group of 10 or more carbon atoms. The degree of the overbasing preferably is in the range of 5 to 25. The low base number calcium sulfonate preferably is a calcium salt of an alkylated benzenesulfonate or a calcium salt of an alkylated benzenesulfonate. The alkyl group preferably contains 10 or more carbon atoms. The low base number calcium sulfonate preferably is a neutral salt or the like (preferably having an overbasing degree in the range of 0.1 to 1.5) having been subjected to no overbasing process. Preferred is a combination of an overbased calcium sulfonate and a low base number calcium sulfonate. The sulfonate can be a synthetic sulfonate or a petroleum-origin sulfonate which is prepared by the steps of sulfonating a lubricating oil fraction of a mineral oil and reacting it with a calcium compound. Therefore, the low base number calcium sulfonate and/or the overbased calcium sulfonate derived from petroleum products can also be favorably employed.
- As the calcium phenates, there are known overbased sulfurized calcium phenates having a TBN of 120-350 mgKOH/g. Preferred is an overbased sulfurized calcium phenate having an alkyl group of 10 carbon atoms or more.
- The lubricating oil composition of the invention contains a phosphorus-containing wear inhibitor (component (c)) in an amount of 0.05 to 0.12 wt.% in terms of phosphorus content. The phosphorus-containing wear inhibitor preferably is zinc dihydrocarbyldithiophosphate or a zinc dihydrocarbylphosphate, both of which are known as multifunctional lubricating oil additives showing oxidation inhibition performance and wear inhibition performance.
- The zinc dihydrocarbyldithiophosphate generally is a zinc dialkyldithiophosphate having a primary alkyl or a secondary alkyl. From the viewpoint of anti-wear performance, preferred is a zinc dialkyldithiophosphate having a secondary alkyl group which is derived from a secondary alcohol having 3 to 18 carbon atoms. In contrast, a zinc dialkyldithiophosphate having a primary alkyl group which is derived from a primary alcohol having 3 to 18 carbon atoms is advantageous in its excellent heat resistance and friction reducing function. The zinc dialkyldithiophosphate having a secondary alkyl group and the zinc dialkyldithiophosphate having a primary alkyl group can be used in combination. A zinc dialkyldithiophosphate having a primary alkyl group and a secondary alkyl group which can be obtained from a mixture of a primary alcohol and a secondary alcohol can also be favorably employed.
- In addition, a zinc dialkylaryldithiophosphate (e.g., zinc dialkylaryldithiophosphate obtainable using dodecylphenyl) can be employed.
- Otherwise, the phosphorus-containing wear inhibitor can be a phosphorus ester, a phosphite ester, or a thiophosphate ester.
- The lubricating oil composition of the invention further contains at least one oxidation inhibitor (component (d)) selected from the group consisting of phenol compounds (phenolic oxidation inhibitors), amine compounds (amine oxidation inhibitors), and molybdenum compounds (molybdenum oxidation inhibitors) in an amount of 0.1 to 7 wt.%.
- A representative phenolic oxidation inhibitor is a hindered phenol compound, and a representative amine oxidation inhibitor is a diarylamine compound.
- The hindered phenol compound and diarylamine compound are advantageous because both further provide high detergency at high temperatures. The diarylamine oxidation inhibitor is particularly advantageous because it has a base number derived from the contained nitrogen which serves to increase detergency at high temperatures. In contrast, the hindered phenol oxidation inhibitor is effective to reduce oxidative deterioration caused by NOx.
- Examples of the hindered phenol oxidation inhibitors include 2,6-di-t-butyl-p-cresol, 4,4'-methylenebis(2,6-di-t-butylphenol), 4,4'-methylenebis(6-t-butyl-o-cresol), 4,4'-isopropylidenebis(2,6-di-t-butylphenol), 4,4'-bis(2,6-di-t-butylphenol), 2,2'-methylenebis(4-methyl-6-t-butylphenol), 4,4'-thiobis(2-methyl-6-t-butylphenol), 2,2-thio-diethylenebis[3-(3,5-di-t-butyl-4-hydoxyphenyl)propionate], octyl 3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate, octadecyl 3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate, and octyl 3-(5-t-butyl-4-hydroxy-3-methylphenyl)propionate.
- Examples of the diarylamine oxidation inhibitors include alkyldiphenylamine having a mixture of alkyl groups of 4 to 9 carbon atoms, p,p'-dioctyldiphenylamine, phenyl-1-naphthylamine, phenyl-2-naphthylamine, alkylated N-naphthylamine, and alkylated phenyl-1-naphthylamine.
- The molybdenum oxidation inhibitor can be an oxymolybdenum complex of a basic nitrogen compound. Preferred examples of the oxymolybdenum complex of a basic nitrogen compound include an oxymolybdenum complex of succinimide and an oxymolybdenum complex of carboxylamide.
- The oxymolybdenum complex of a basic-nitrogen compound can be prepared by the following process:
- an acidic molybdenum compound or its salt is caused to react with a basic nitrogen-containing compound such as succinimide, carboxylamide, hydrocarbyl monoamine, hydrocarbyl polyamine, Mannich base, phosphonamide, thiophosphonamide, phosphoramide and a dispersant-type viscosity index improver (or a mixture thereof) at a temperature of 120°C or lower.
- Molybdenum-containing compounds other than the above-mentioned oxymolybdenum complex of a basic nitrogen compound can be employed in place of the oxymolybdenum complex of a basic nitrogen compound or in combination with the oxymolybdenum complex of a basic nitrogen compound. The above-mentioned "other molybdenum-containing compound" can be sulfurized oxymolybdenum dithiocarbamate or sulfurized oxymolybdenum dithiophosphate.
- Each of the phenolic oxidation inhibitor (particularly, hindered phenol oxidation inhibitor), amine oxidation inhibitor (particularly, diarylamine oxidation inhibitor) and a molybdenum oxidation inhibitor (particularly, oxymolybdenum complex of a basic nitrogen compound) can be employed singly or in combination. If desired, other oil soluble oxidation inhibitors can be employed in combination with the above-mentioned oxidation inhibitor(s).
- The lubricating oil composition of the invention further contains a viscosity index improver (component (e)) in an amount of 0.5 to 20 wt.%. Examples of the viscosity index improvers include polymethacryl viscosity improvers such as polyalkyl methacrylate and olefin copolymer viscosity index improvers such as ethylene-propylene copolymer, styrenebutadiene copolymer, and polyisoprene. The viscosity index improvers can be used singly or in combination.
- The lubricating oil composition of the invention preferably contains an organic sulfur compound which is effective in wear inhibition and oxidation inhibition. Examples of the organic sulfur compounds include sulfurized olefin, sulfurized ester, sulfurized oil/fat, polysulfide, dimercaptothiazole, dithiophosphate ester, and dithiocarbamate.
- The lubricating oil composition of the invention may further contain an alkali metal borate hydrate for increasing high temperature detergency and a basic number. The alkali metal borate hydrate can be contained in an amount of 5 wt.% or less, particularly 0.01 to 5 wt.%. Some alkali metal borate hydrates contain an ash component and a sulfur component. Therefore, the alkali metal borate hydrate can be used in an appropriate amount in consideration of the composition of the resulting lubricating oil composition.
- The lubricating oil composition of the invention may further contain a small amount of various auxiliary additives. Examples of the auxiliary additives are described below.
- Zinc dithiocarbamate or methylenebis(dibutyl dithiocarbamate) as an oxidation inhibitor or a wear inhibitor; an oil soluble copper compound; organic amide compounds (e.g., oleylamide); benzotriazol compounds and thiadiazol compounds functioning as metal deactivating agent; nonionic polyoxyalkylene surface active agents such as polyoxyethylene alkylphenyl ether and copolymers of ethylene oxide and propylene oxide functioning as rust inhibitor and anti-emulsifying agent; a variety of amines, amides, amine salts, their derivatives, aliphatic esters of polyhydric alcohols, and their derivatives which function as friction modifiers; and various compounds functioning as anti-foaming agents and pour point depressants.
- The auxiliary additives can be preferably incorporated into the lubricating oil composition in an amount of 3 wt% or less (particularly, 0.001 to 3 wt.%).
- The present invention is further described by the following illustrative non-limiting examples.
- A lubricating oil composition of the invention (SAE viscosity grade: 0W20, High temperature high shear viscosity: 2.9 mPa·s or higher) was prepared using the following additives and base oil in Examples 1 and 2. In the comparison example, a lubricating oil composition (SAE viscosity grade: 0W20, High temperature high shear viscosity: 2.6 mPa·s) was prepared. In the reference example, a lubricating oil composition (SAE viscosity grade: 10W30, High temperature high shear viscosity: 2.9 mPa·s or higher) was prepared.
- Base oil-1: a mixture of base oil (a) and base oil (b) in a weight ratio of 60:40 (base oil (a):base oil (b), viscosity index: 142; kinematic viscosity at 100°C: 4.9 mm2/s; Noack evaporation loss: 10.1%) in which the base oil (a) was a mineral oil-origin base oil prepared by subjecting slack wax to hydrogenation-isomerization, distillation and dewaxing(viscosity index: 137; kinematic viscosity at 100°C: 4.1 mm2/s; Noack evaporation loss: 13.6%) and base oil (b) was a mineral oil-origin base oil prepared by subjecting slack wax to hydrogenation-isomerization, distillation and dewaxing; viscosity index: 148; kinematic viscosity at 100°C: 6.6 mm2/s, Noack evaporation loss: 5.0%).
- Base oil-2: hydrocracked mineral oil (viscosity index: 128; kinematic viscosity at 100°C: 4.2 mm2/s, Noack evaporation loss: 14.2%).
- Base oil-3: a mixture of hydrocracked mineral oil (a) and hydrocracked mineral oil (b) in a weight ratio of 73:27 (mineral oil (a):mineral oil (b); viscosity index: 115; kinematic viscosity at 100°C: 6.7 mm2/s, Noack evaporation loss: 10.8%) in which the hydrocracked mineral oil (a) had viscosity index: 122; kinematic viscosity at 100°C: 5.6 mm2/s, Noack evaporation loss: 12.4%, and the hydrocracked mineral oil (b) had viscosity index: 99; kinematic viscosity at 100°C: 10.7 mm2/s, Noack evaporation loss: 6.0%.
- Remarks: The base oil was used in an amount to give in combination with the additives a total 100 wt.% of the lubricating oil composition.
-
- 1) Ashless dispersant-1 (weight average molecular weight: 5,100, nitrogen content: 1.95 wt.%, boron content: 0.63 wt.%, chlorine content: less than 5 wt.ppm., prepared by the steps of thermally reacting a highly reactive polyisobutene having a number average molecular weight of approx. 1,300 (containing at least approx. 50% of methylvinylidene structure) with maleic anhydride to give polyisobutenylsuccinic anhydride, reacting the polyisobutenylsuccinic anhydride with polyalkylenepolyamine having an average nitrogen atoms of 6.5 (per one molecule) to give a bis-succinimide, and reacting the bis-succinimide with boric acid): 0.06 wt.% (in terms of nitrogen content)
- 2) Ashless dispersant-2 (weight average molecular weight: 12,800 (GPC analysis, value as molecular weight corresponding to polystyrene), nitrogen content: 1.0 wt.%, chlorine content: 30 wt.ppm., prepared by the steps of thermally reacting a highly reactive polyisobutene having a number average molecular weight of approx. 2,300 (containing at least approx. 50% of methylvinylidene structure) with maleic anhydride to give polyisobutenylsuccinic anhydride, reacting the polyisobutenylsuccinic anhydride with polyalkylenepolyamine having an average nitrogen atoms of 6.5 (per one molecule) to give a bis-succinimide, and reacting the bis-succinimide with ethylene carbonate): 0.01 wt.% (in terms of nitrogen content)
-
- 1) Overbased calcium phenate (sulfurized phenate having a C12 branched alkyl group, Ca: 9.6 wt.%, S: 3.4 wt.%, TBN: 264 mgKOH/g): 0.15 wt.% (in terms of Ca content)
- 2) Overbased calcium sulfonate (alkyltoluene sulfonate having C20-24 alkyl group, Ca: 16.0 wt.%, S: 1.6 wt.%, TBN: 425 mgKOH/g, overbasing degree: 19): 0.07 wt.% (in terms of Ca content)
- 3) Low basic calcium sulfonate (alkylbenzene sulfonate having C14-24 alkyl group, Ca: 2.4 wt.%, S: 2.9 wt.%, TBN: 17 mgKOH/g, overbasing degree: 0.34): 0.01 wt.% (in terms of Ca content)
- Zinc di(secondary alkyl)dithiophosphate (P: 7.2 wt.%, Zn: 7.8 wt.%, S: 14 wt.%, prepared by using a secondary alcohol having 3 to 8 carbon atoms): 0.06 wt.% (in terms ofP content)
- Zinc di(primary alkyl)dithiophosphate (P: 7.3 wt.%, Zn: 8.4 wt.%, S: 14 wt.%, prepared by using a primary alcohol having 8 carbon atoms): 0.03 wt.% (in terms ofP content)
- Dialkyldiphenylamine having a mixture of C4 and C8 alkyl groups (N: 4.6 wt.%): 0.45 wt.%
- [Organic sulfur compound]-used in Example 2 only
- Sulfurized isobutylene (S: 42 wt.%): 0.3 wt.%
- Polymethacrylate viscosity index improver (SSI=23) used in Example 1 (amount: 5.4 wt.%), Example 2 (amount: 5.5 wt.%), and Comparison Example (amount: 5.0 wt.%)
- Ethylene-propylene copolymer viscosity index improver (SSI=24) used in Reference Example (amount: 4.5 wt.%)
- Polymethacrylate pour point depressant: 0.3 wt.%
- Combination of small amounts of a friction modifier, a rust inhibitor, a defoamer, etc.: 0.6 wt.% for all examples
- Each of the lubricating oil compositions was subjected to Shell Four Ball Test under the conditions of oil temperature of 75°C, load of 40 kgf, and rotation for 60 minutes at 1,200 rpm, to evaluate its wear inhibition property. The wear inhibition property was evaluated by determining a wear mark formed on the surfaces of the tested balls.
- Table 1 shows physical properties of the lubricating oil compositions of Examples 1, 2, Comparison Example, and Reference Example.
Table 1 Ex. 1 Ex. 2 Com.Ex. Ref.Ex. SAE 0W20 0W20 0W20 10W30 Base oil Base oil-1 Base oil-1 Base oil-2 Base oil-3 HTHS viscosity 2.97 3.00 2.62 3.15 Kinematic viscosity at 100°C at 40°C 9.16 41.9 9.20 42.2 8.02 36.3 10.1 65.7 Viscosity index 209 209 203 139 Cranking viscosity at -25°C - - - 5815 at -35°C 5854 5859 5254 - Pumping viscosity Pass Pass Pass Pass (-40°C) (-40°C) (-40°C) (-30°C) Noack evaporation loss (%) 9.9 10.3 14.0 11.5 Shell wear test, Average wear diameter (mm) 0.49 0.48 0.55 0.49 - Remarks:
- HTHS viscosity: viscosity (unit: mPa·s, determined at 150°C at a shear rate of 106/s.
- Kinematic viscosity: unit mm2/s
- Cranking viscosity: unit mPa·s
- "Pass" for Pumping viscosity means that the lubricating oil composition satisfies the pumping viscosity at -40°C which is indicated for SAE 0W20 or the pumping viscosity at - 30°C which is indicated for SAE 10W30.
- The results set forth in Table 1 indicate the following:
- (1) The lubricating oil compositions of Examples 1 and 2 according to the invention show wear inhibition property similar to that shown by the SAE 10W30 lubricating oil composition of Reference Example, though the lubricating oil compositions of Examples 1 and 2 are SAE 0W20 oils.
- (2) The lubricating oil composition of Comparison Example of SAE 0W20 shows high Noack evaporation loss, low high temperature high shear viscosity, and low wear inhibition.
Claims (13)
wherein the amounts of the additive components are in terms of wt.% based on a total amount of the lubricating oil composition.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010265479 | 2010-11-29 | ||
US13/294,910 US8784642B2 (en) | 2010-11-29 | 2011-11-11 | Lubricating oil composition for lubricating automotive engines |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2457985A1 true EP2457985A1 (en) | 2012-05-30 |
EP2457985B1 EP2457985B1 (en) | 2020-04-22 |
Family
ID=45063032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11190695.4A Active EP2457985B1 (en) | 2010-11-29 | 2011-11-25 | Lubricating oil composition for lubricating automotive engines |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2457985B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102851102A (en) * | 2012-08-27 | 2013-01-02 | 贵州龙和能源有限责任公司 | Lubricating oil special for methanol gasoline engine and preparation method thereof |
WO2014135549A1 (en) * | 2013-03-04 | 2014-09-12 | Shell Internationale Research Maatschappij B.V. | Lubricating composition |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06306384A (en) | 1993-04-22 | 1994-11-01 | Kyoseki Seihin Gijutsu Kenkyusho:Kk | Fuel-saving lubricating oil |
JP2000087070A (en) | 1998-09-09 | 2000-03-28 | Nippon Mitsubishi Oil Corp | 4-cycle engine oil composition for two wheeler |
JP2003505533A (en) | 1999-07-16 | 2003-02-12 | インフィニューム インターナショナル リミテッド | Low volatility lubricating oil composition containing no molybdenum |
US7067049B1 (en) * | 2000-02-04 | 2006-06-27 | Exxonmobil Oil Corporation | Formulated lubricant oils containing high-performance base oils derived from highly paraffinic hydrocarbons |
EP2009084A1 (en) * | 2006-03-31 | 2008-12-31 | Nippon Oil Corporation | Lube base oil, process for production thereof, and lubricating oil composition |
EP2241611A1 (en) * | 2007-12-05 | 2010-10-20 | Nippon Oil Corporation | Lubricant oil composition |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9624441D0 (en) * | 1996-11-25 | 1997-01-15 | Exxon Research Engineering Co | Fuel economy engine oil composition |
-
2011
- 2011-11-25 EP EP11190695.4A patent/EP2457985B1/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06306384A (en) | 1993-04-22 | 1994-11-01 | Kyoseki Seihin Gijutsu Kenkyusho:Kk | Fuel-saving lubricating oil |
JP2000087070A (en) | 1998-09-09 | 2000-03-28 | Nippon Mitsubishi Oil Corp | 4-cycle engine oil composition for two wheeler |
JP2003505533A (en) | 1999-07-16 | 2003-02-12 | インフィニューム インターナショナル リミテッド | Low volatility lubricating oil composition containing no molybdenum |
US7067049B1 (en) * | 2000-02-04 | 2006-06-27 | Exxonmobil Oil Corporation | Formulated lubricant oils containing high-performance base oils derived from highly paraffinic hydrocarbons |
EP2009084A1 (en) * | 2006-03-31 | 2008-12-31 | Nippon Oil Corporation | Lube base oil, process for production thereof, and lubricating oil composition |
EP2241611A1 (en) * | 2007-12-05 | 2010-10-20 | Nippon Oil Corporation | Lubricant oil composition |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102851102A (en) * | 2012-08-27 | 2013-01-02 | 贵州龙和能源有限责任公司 | Lubricating oil special for methanol gasoline engine and preparation method thereof |
WO2014135549A1 (en) * | 2013-03-04 | 2014-09-12 | Shell Internationale Research Maatschappij B.V. | Lubricating composition |
RU2659031C2 (en) * | 2013-03-04 | 2018-06-27 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Lubricant composition |
Also Published As
Publication number | Publication date |
---|---|
EP2457985B1 (en) | 2020-04-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8784642B2 (en) | Lubricating oil composition for lubricating automotive engines | |
EP2011855B1 (en) | Fuel economy lubricating oil compositon for lubricating diesel engines | |
CA2604137C (en) | Low sulfated ash, low sulfur, low phosphorus, low zinc lubricating oil composition | |
CA2799082C (en) | Fuel economical lubricating oil composition for internal combustion engines | |
JP5902005B2 (en) | Lubricating oil composition for automobile engine lubrication | |
US20130085089A1 (en) | Lubricating Oil Composition | |
WO2007052826A1 (en) | Lubricant composition | |
EP2457985B1 (en) | Lubricating oil composition for lubricating automotive engines | |
US9102896B2 (en) | Fuel economical lubricating oil composition for internal combustion engines | |
CA2531433C (en) | Lubricating oil composition having improved oxidation stability at high temperatures | |
US7687444B2 (en) | Lubricating oil composition having improved oxidation stability at high temperatures |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: NAKAZATO, MORIKUNI |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: NAKAZATO, MORIKUNI Inventor name: ANDOH, HIROKI |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: ANDOH, HIROKI Inventor name: NAKAZATO, MORIKUNI |
|
17P | Request for examination filed |
Effective date: 20121128 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: ANDOH, HIROKI Inventor name: NAKAZATO, MORIKUNI |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20180815 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20200107 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: C10N 30/08 20060101ALN20191213BHEP Ipc: C10N 30/06 20060101ALN20191213BHEP Ipc: C10N 40/25 20060101ALN20191213BHEP Ipc: C10N 30/02 20060101ALN20191213BHEP Ipc: C10M 169/04 20060101AFI20191213BHEP |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602011066365 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 1260066 Country of ref document: AT Kind code of ref document: T Effective date: 20200515 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: FP |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200824 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200822 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200723 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200722 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 1260066 Country of ref document: AT Kind code of ref document: T Effective date: 20200422 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200722 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20201113 Year of fee payment: 10 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 602011066365 Country of ref document: DE Representative=s name: HL KEMPNER PATENTANWAELTE, SOLICITORS (ENGLAND, DE Ref country code: DE Ref legal event code: R082 Ref document number: 602011066365 Country of ref document: DE Representative=s name: HL KEMPNER PATENTANWALT, RECHTSANWALT, SOLICIT, DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602011066365 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20210125 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201125 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20201130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201130 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201125 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MM Effective date: 20211201 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20211201 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230530 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20230929 Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20231006 Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20230929 Year of fee payment: 13 |