EP4317375A1 - Composition d'huile lubrifiante - Google Patents
Composition d'huile lubrifiante Download PDFInfo
- Publication number
- EP4317375A1 EP4317375A1 EP22779712.3A EP22779712A EP4317375A1 EP 4317375 A1 EP4317375 A1 EP 4317375A1 EP 22779712 A EP22779712 A EP 22779712A EP 4317375 A1 EP4317375 A1 EP 4317375A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- group
- lubricating oil
- oil composition
- mass
- molybdenum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 101
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 99
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 58
- 229920000642 polymer Polymers 0.000 claims abstract description 57
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000011733 molybdenum Substances 0.000 claims abstract description 48
- 239000003607 modifier Substances 0.000 claims abstract description 35
- 239000002199 base oil Substances 0.000 claims abstract description 33
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 20
- 239000011707 mineral Substances 0.000 claims abstract description 20
- -1 molybdenum amine Chemical class 0.000 claims description 77
- KHYKFSXXGRUKRE-UHFFFAOYSA-J molybdenum(4+) tetracarbamodithioate Chemical compound C(N)([S-])=S.[Mo+4].C(N)([S-])=S.C(N)([S-])=S.C(N)([S-])=S KHYKFSXXGRUKRE-UHFFFAOYSA-J 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 17
- 230000001050 lubricating effect Effects 0.000 claims description 12
- 229920000098 polyolefin Polymers 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 3
- 230000001603 reducing effect Effects 0.000 abstract description 27
- 239000003921 oil Substances 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 17
- 230000003746 surface roughness Effects 0.000 abstract description 7
- 125000004432 carbon atom Chemical group C* 0.000 description 52
- 229910052751 metal Inorganic materials 0.000 description 35
- 239000002184 metal Substances 0.000 description 35
- 150000001875 compounds Chemical class 0.000 description 28
- 239000003446 ligand Substances 0.000 description 26
- 125000001424 substituent group Chemical group 0.000 description 24
- 239000003599 detergent Substances 0.000 description 19
- 125000000217 alkyl group Chemical group 0.000 description 18
- 125000001183 hydrocarbyl group Chemical group 0.000 description 16
- 125000001931 aliphatic group Chemical group 0.000 description 15
- 125000000129 anionic group Chemical group 0.000 description 14
- 150000001336 alkenes Chemical class 0.000 description 13
- 239000003963 antioxidant agent Substances 0.000 description 13
- 230000003078 antioxidant effect Effects 0.000 description 13
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 12
- 239000003795 chemical substances by application Substances 0.000 description 12
- 238000009826 distribution Methods 0.000 description 12
- 229910052749 magnesium Inorganic materials 0.000 description 12
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 12
- 125000000962 organic group Chemical group 0.000 description 12
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 11
- 125000003342 alkenyl group Chemical group 0.000 description 11
- 229910052717 sulfur Inorganic materials 0.000 description 11
- 125000004429 atom Chemical group 0.000 description 10
- 239000011777 magnesium Substances 0.000 description 10
- 229910052791 calcium Inorganic materials 0.000 description 9
- 239000011575 calcium Substances 0.000 description 9
- 235000014113 dietary fatty acids Nutrition 0.000 description 9
- 239000000194 fatty acid Substances 0.000 description 9
- 229930195729 fatty acid Natural products 0.000 description 9
- 239000002480 mineral oil Substances 0.000 description 9
- 150000001450 anions Chemical class 0.000 description 8
- 239000000446 fuel Substances 0.000 description 8
- 150000001412 amines Chemical class 0.000 description 7
- 235000010446 mineral oil Nutrition 0.000 description 7
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 7
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 7
- 125000004434 sulfur atom Chemical group 0.000 description 7
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 6
- 125000003118 aryl group Chemical group 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 150000002148 esters Chemical class 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
- 239000000654 additive Substances 0.000 description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 5
- 150000001342 alkaline earth metals Chemical class 0.000 description 5
- 230000000994 depressogenic effect Effects 0.000 description 5
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 5
- 230000001747 exhibiting effect Effects 0.000 description 5
- 150000004665 fatty acids Chemical class 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 125000004430 oxygen atom Chemical group O* 0.000 description 5
- 239000012188 paraffin wax Substances 0.000 description 5
- 229920000193 polymethacrylate Polymers 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 5
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 150000001340 alkali metals Chemical class 0.000 description 4
- 229910052788 barium Inorganic materials 0.000 description 4
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 4
- 125000000753 cycloalkyl group Chemical group 0.000 description 4
- 125000002960 margaryl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 239000010705 motor oil Substances 0.000 description 4
- 125000005064 octadecenyl group Chemical group C(=CCCCCCCCCCCCCCCCC)* 0.000 description 4
- 125000004437 phosphorous atom Chemical group 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 229920001083 polybutene Polymers 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 239000003981 vehicle Substances 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 150000003973 alkyl amines Chemical class 0.000 description 3
- 125000002877 alkyl aryl group Chemical group 0.000 description 3
- 239000002518 antifoaming agent Substances 0.000 description 3
- 125000003710 aryl alkyl group Chemical group 0.000 description 3
- 125000005265 dialkylamine group Chemical group 0.000 description 3
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 3
- 125000005066 dodecenyl group Chemical group C(=CCCCCCCCCCC)* 0.000 description 3
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000006078 metal deactivator Substances 0.000 description 3
- 239000005078 molybdenum compound Substances 0.000 description 3
- 150000002752 molybdenum compounds Chemical class 0.000 description 3
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 3
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 125000002958 pentadecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- PTISTKLWEJDJID-UHFFFAOYSA-N sulfanylidenemolybdenum Chemical compound [Mo]=S PTISTKLWEJDJID-UHFFFAOYSA-N 0.000 description 3
- 125000005063 tetradecenyl group Chemical group C(=CCCCCCCCCCCCC)* 0.000 description 3
- 125000005040 tridecenyl group Chemical group C(=CCCCCCCCCCCC)* 0.000 description 3
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical compound CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 2
- ADOBXTDBFNCOBN-UHFFFAOYSA-N 1-heptadecene Chemical compound CCCCCCCCCCCCCCCC=C ADOBXTDBFNCOBN-UHFFFAOYSA-N 0.000 description 2
- GQEZCXVZFLOKMC-UHFFFAOYSA-N 1-hexadecene Chemical compound CCCCCCCCCCCCCCC=C GQEZCXVZFLOKMC-UHFFFAOYSA-N 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- PJLHTVIBELQURV-UHFFFAOYSA-N 1-pentadecene Chemical compound CCCCCCCCCCCCCC=C PJLHTVIBELQURV-UHFFFAOYSA-N 0.000 description 2
- HFDVRLIODXPAHB-UHFFFAOYSA-N 1-tetradecene Chemical compound CCCCCCCCCCCCC=C HFDVRLIODXPAHB-UHFFFAOYSA-N 0.000 description 2
- ULQISTXYYBZJSJ-UHFFFAOYSA-N 12-hydroxyoctadecanoic acid Chemical compound CCCCCCC(O)CCCCCCCCCCC(O)=O ULQISTXYYBZJSJ-UHFFFAOYSA-N 0.000 description 2
- BVUXDWXKPROUDO-UHFFFAOYSA-N 2,6-di-tert-butyl-4-ethylphenol Chemical compound CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 BVUXDWXKPROUDO-UHFFFAOYSA-N 0.000 description 2
- BITAPBDLHJQAID-KTKRTIGZSA-N 2-[2-hydroxyethyl-[(z)-octadec-9-enyl]amino]ethanol Chemical compound CCCCCCCC\C=C/CCCCCCCCN(CCO)CCO BITAPBDLHJQAID-KTKRTIGZSA-N 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 description 2
- KEQFTVQCIQJIQW-UHFFFAOYSA-N N-Phenyl-2-naphthylamine Chemical compound C=1C=C2C=CC=CC2=CC=1NC1=CC=CC=C1 KEQFTVQCIQJIQW-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000002723 alicyclic group Chemical group 0.000 description 2
- 150000001447 alkali salts Chemical class 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 125000001204 arachidyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000002511 behenyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- IAQRGUVFOMOMEM-UHFFFAOYSA-N but-2-ene Chemical compound CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000004517 catalytic hydrocracking Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 125000003493 decenyl group Chemical group [H]C([*])=C([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 239000000539 dimer Substances 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000005227 gel permeation chromatography Methods 0.000 description 2
- 125000000755 henicosyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000006038 hexenyl group Chemical group 0.000 description 2
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- VAMFXQBUQXONLZ-UHFFFAOYSA-N n-alpha-eicosene Natural products CCCCCCCCCCCCCCCCCCC=C VAMFXQBUQXONLZ-UHFFFAOYSA-N 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- NHLUYCJZUXOUBX-UHFFFAOYSA-N nonadec-1-ene Chemical compound CCCCCCCCCCCCCCCCCC=C NHLUYCJZUXOUBX-UHFFFAOYSA-N 0.000 description 2
- 125000001196 nonadecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000005187 nonenyl group Chemical group C(=CCCCCCCC)* 0.000 description 2
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- CCCMONHAUSKTEQ-UHFFFAOYSA-N octadec-1-ene Chemical compound CCCCCCCCCCCCCCCCC=C CCCMONHAUSKTEQ-UHFFFAOYSA-N 0.000 description 2
- 125000004365 octenyl group Chemical group C(=CCCCCCC)* 0.000 description 2
- 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 2
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 150000008301 phosphite esters Chemical class 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920013639 polyalphaolefin Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 description 2
- 229960001860 salicylate Drugs 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 150000005846 sugar alcohols Polymers 0.000 description 2
- 125000005065 undecenyl group Chemical group C(=CCCCCCCCCC)* 0.000 description 2
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 description 1
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- 229920001021 polysulfide Polymers 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- WBHHMMIMDMUBKC-XLNAKTSKSA-N ricinelaidic acid Chemical compound CCCCCC[C@@H](O)C\C=C\CCCCCCCC(O)=O WBHHMMIMDMUBKC-XLNAKTSKSA-N 0.000 description 1
- 229960003656 ricinoleic acid Drugs 0.000 description 1
- FEUQNCSVHBHROZ-UHFFFAOYSA-N ricinoleic acid Natural products CCCCCCC(O[Si](C)(C)C)CC=CCCCCCCCC(=O)OC FEUQNCSVHBHROZ-UHFFFAOYSA-N 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 125000003107 substituted aryl group Chemical group 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- VLLMWSRANPNYQX-UHFFFAOYSA-N thiadiazole Chemical compound C1=CSN=N1.C1=CSN=N1 VLLMWSRANPNYQX-UHFFFAOYSA-N 0.000 description 1
- 150000003558 thiocarbamic acid derivatives Chemical class 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- 150000003580 thiophosphoric acid esters Chemical class 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 125000002469 tricosyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 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
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
- C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
- C10M137/04—Phosphate esters
- C10M137/10—Thio derivatives
-
- 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
- C10M139/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing atoms of elements not provided for in groups C10M127/00 - C10M137/00
-
- 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
- C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
- C10M141/12—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic compound containing atoms of elements not provided for in groups C10M141/02 - C10M141/10
-
- 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
- C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
- C10M143/08—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation containing aliphatic monomer having more than 4 carbon atoms
-
- 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
- C10M161/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a non-macromolecular compound, each of these compounds being essential
-
- 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
- C10M2203/102—Aliphatic fractions
- C10M2203/1025—Aliphatic fractions used as base material
-
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
-
- 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
- C10M2205/026—Butene
-
- 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
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
- C10M2219/068—Thiocarbamate metal salts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- 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
- 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
- C10M2227/09—Complexes with metals
-
- 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
- C10M2290/00—Mixtures of base materials or thickeners or additives
- C10M2290/02—Mineral base oils; Mixtures of fractions
-
- 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
- C10N2010/00—Metal present as such or in compounds
- C10N2010/12—Groups 6 or 16
-
- 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
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/02—Viscosity; Viscosity index
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- 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
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/04—Molecular weight; Molecular weight distribution
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- 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
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/071—Branched chain compounds
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—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
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
-
- 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
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
- C10N2040/255—Gasoline engines
Definitions
- the present invention relates to a lubricating oil composition
- a method of reducing viscous resistance by reducing the viscosity of a lubricating oil composition can be mentioned, but merely promoting the viscosity reduction adversely affects the friction characteristics.
- a molybdenum-based friction modifier may be used for the purpose of reducing the friction coefficient (for example, see PTL 1).
- the present invention has been made in view of the above problem, and an object of the present invention is to provide a lubricating oil composition having an excellent effect of reducing the friction coefficient even when lubricating a member having small surface roughness in a low oil temperature region.
- the present invention provides the following [1].
- the present invention it is possible to provide the lubricating oil composition having an excellent effect of reducing the friction coefficient even when lubricating a member having small surface roughness in a low oil temperature region.
- (meth)acrylate is used as a term indicating both "acrylate” and “methacrylate”, and the same applies to other similar terms and similar notations.
- the lubricating oil composition according to the present embodiment contains a mineral base oil (A), a polymer (B) having a weight average molecular weight (Mw) of 100 to 15,000, and a molybdenum-based friction modifier (M), and has a kinematic viscosity at 40°C of 35.0 mm 2 /s or less.
- the present inventors have found that, when a member having a small surface roughness is lubricated in a low oil temperature region, a film of a molybdenum-based friction modifier is less likely to be formed in a boundary lubrication region, and the friction coefficient is deteriorated.
- the lubricating oil composition according to the present embodiment contains a mineral base oil (A).
- a mineral base oil (A) one or more selected from mineral oils which have been conventionally used as lubricant base oils can be used without particular limitation.
- Examples of the mineral oil include: an atmospheric residue obtained by atmospheric distillation of a crude oil such as a paraffinic crude oil, an intermediate crude oil, or a naphthenic crude oil; a lubricating oil distillate obtained by vacuum distillation of the atmospheric residue; and a mineral oil obtained by subjecting the lubricating oil distillate to one or more refining treatments such as solvent deasphalting, solvent extraction, hydrofinishing, hydrocracking, advanced hydrocracking, solvent dewaxing, catalytic dewaxing, and hydroisomerization dewaxing.
- a crude oil such as a paraffinic crude oil, an intermediate crude oil, or a naphthenic crude oil
- a lubricating oil distillate obtained by vacuum distillation of the atmospheric residue
- a mineral oil obtained by subjecting the lubricating oil distillate to one or more refining treatments such as solvent deasphalting, solvent extraction, hydrofinishing, hydrocracking, advanced hydrocracking, solvent dewaxing, catalytic de
- the mineral base oil (A) used in the present embodiment is preferably a base oil classified into Group II or III of the base oil category of API (American Petroleum Institute) and more preferably a base oil classified into Group III.
- mineral base oil (A) one selected from the mineral oils may be used alone, or two or more thereof may be used in combination.
- the upper limit is preferably set in the following range from the viewpoint of improving fuel saving performance, and the lower limit is preferably set in the following range from the viewpoint of reducing the loss of the lubricating oil composition due to evaporation and ensuring oil film retention.
- the 40°C kinematic viscosity of the mineral base oil (A) is preferably 4.0 mm 2 /s or more, more preferably 8.0 mm 2 /s or more, still more preferably 12.0 mm 2 /s or more, and is preferably 50.0 mm 2 /s or less, more preferably 35.0 mm 2 /s or less, and still more preferably 24.0 mm 2 /s or less.
- the upper limit values and the lower limit values of these numerical ranges can be arbitrarily combined, and specifically, it is preferably 4.0 mm 2 /s to 50.0 mm 2 /s, more preferably 8.0 mm 2 /s to 35.0 mm 2 /s, and still more preferably 12.0 mm 2 /s to 24.0 mm 2 /s.
- the 100°C kinematic viscosity of the mineral base oil (A) is preferably 2.0 mm 2 /s or more, and is preferably 20.0 mm 2 /s or less, more preferably 10.0 mm 2 /s or less, still more preferably 8.0 mm 2 /s or less, and even more preferably 7.0 mm 2 /s or less.
- the upper limit values and the lower limit values of these numerical ranges can be arbitrarily combined, and specifically, it is preferably 2.0 mm 2 /s to 20.0 mm 2 /s, more preferably 2.0 mm 2 /s to 10.0 mm 2 /s, still more preferably 2.0 mm 2 /s to 8.0 mm 2 /s, and even more preferably 2.0 mm 2 /s to 7.0 mm 2 /s.
- the viscosity index of the base oil (A) is preferably 80 or more, more preferably 90 or more, still more preferably 100 or more, even more preferably 105 or more, and yet still more preferably 120 or more.
- the 40°C kinematic viscosity, the 100°C kinematic viscosity, and the viscosity index can be measured or calculated in accordance with JIS K 2283:2000.
- the kinematic viscosity and the viscosity index of the mixed base oil are preferably within the above ranges.
- the content of the mineral base oil (A) is not particularly limited, but is preferably 60% by mass to 99% by mass, more preferably 70% by mass to 95% by mass, and still more preferably 80% by mass to 93% by mass based on the total amount (100% by mass) of the lubricating oil composition, from the viewpoint of more easily exhibiting the effects of the present invention.
- the polymer (B) used in the lubricating oil composition according to the present embodiment is required to have a weight average molecular weight (Mw) of 100 to 15,000.
- Mw weight average molecular weight
- the weight average molecular weight (Mw) of the polymer is less than 100, the effect of enhancing the oil film is not exhibited, and on the other hand, when the weight average molecular weight (Mw) of the polymer is more than 15,000, the polymer cannot enter the sliding surface, and therefore, the effect of reducing the friction coefficient is not exhibited in any case.
- the weight average molecular weight (Mw) of the polymer (B) is preferably 500 or more, more preferably 800 or more, and still more preferably 1,000 or more, and is preferably 13,000 or less, more preferably 12,000 or less, still more preferably 11,000 or less, and particularly preferably 3,500 or less.
- the upper limit values and the lower limit values of these numerical ranges can be arbitrarily combined, and specifically, it is preferably 500 to 13,000, more preferably 800 to 12,000, still more preferably 1,000 to 11,000, and particularly preferably 1,000 to 3,500.
- the number average molecular weight (Mn) of the polymer (B) is preferably 100 or more, more preferably 500 or more, still more preferably 700 or more, and particularly preferably 800 or more, and is preferably 10,000 or less, more preferably 5,000 or less, still more preferably 3,000 or less, and particularly preferably 1,700 or less.
- the upper limit values and the lower limit values of these numerical ranges can be arbitrarily combined, and specifically, it is preferably 100 to 10,000, more preferably 500 to 5,000, still more preferably 700 to 3,000, and particularly preferably 800 to 1,700.
- the molecular weight distribution (Mw/Mn) of the polymer (B) is preferably 3.0 or less, more preferably 2.5 or less, and still more preferably 2.0 or less.
- the weight average molecular weight (Mw) and the number average molecular weight (Mn) of each component are values in terms of standard polystyrene measured by a gel permeation chromatography (GPC) method.
- polystyrene examples include polyolefin, an ethylene-vinyl acetate copolymer, a condensate of chlorinated paraffin and naphthalene, a condensate of chlorinated paraffin and phenol, poly(meth)acrylate, and polyalkylstyrene.
- polystyrene resin As the polymer (B), it is preferable to use a polyolefin (B-1) or a poly(meth)acrylate (B-2).
- the polyolefin (B-1) is preferably a polymer of an olefin having 2 or more carbon atoms, more specifically, an ethylene-propylene copolymer or a polymer of an olefin having 4 or more carbon atoms is more preferred, and on the other hand, a polymer of an olefin having 20 or less carbon atoms is preferred, and a polymer of an olefin having 12 or less carbon atoms is more preferred.
- the upper limit values and the lower limit values of these numerical ranges can be arbitrarily combined, and as the polymer of an olefin having 4 or more carbon atoms, specifically, a polymer of an olefin having 4 to 20 carbon atoms is preferred, and a polymer of an olefin having 4 to 12 carbon atoms is more preferred.
- olefin examples include ethylene, propylene, 1-butene, 2-butene, isobutene, 3-methyl-1-butene, 4-phenyl-1-butene, 1-pentene, 3-methyl-1-pentene, 4-methyl-1-pentene, 3,3-dimethyl-1-pentene, 3,4-dimethyl-1-pentene, 4,4-dimethyl-1-pentene, 1-hexene, 4-methyl-1-hexene, 5-methyl-1-hexene, 6-phenyl-1-hexene, 1-octene, 1-decene, 1-dodecene, 1-tetradecene, 1-pentadecene, 1-hexadecene, 1-heptadecene, 1-octadecene, 1-nonadecene, and 1-eicosene. Of these, 1-butene and 1-decene are preferred.
- polyolefin (B-1) may be a hydrogenated product.
- the content of the polymer (B) is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, and still more preferably 0.3% by mass or more, and is preferably 5.0% by mass or less, more preferably 4.0% by mass or less, and still more preferably 3.0% by mass or less, in terms of solid content based on the total amount of the composition.
- the upper limit values and the lower limit values of these numerical ranges can be arbitrarily combined, and specifically, the content is preferably 0.1 to 5.0% by mass, more preferably 0.2 to 4.0% by mass, and still more preferably 0.3 to 3.0% by mass.
- the lubricating oil composition according to the present embodiment further contains a molybdenum-based friction modifier (M).
- M molybdenum-based friction modifier
- any compound having a molybdenum atom can be used.
- M molybdenum-based friction modifier
- MoDTC molybdenum dithiocarbamate
- MoDTP molybdenum dithiophosphate
- a molybdenum amine complex examples include molybdenum amine complex. These may be used alone or may be used in combination of two or more thereof.
- MoDTC molybdenum dithiocarbamate
- MoN amine complex one or more selected from the group consisting of molybdenum dithiocarbamate (MoDTC) and a molybdenum amine complex are preferable from the viewpoint of obtaining excellent fuel saving performance by reducing an inter-metal friction coefficient.
- MoDTC molybdenum dithiocarbamate
- the molybdenum-based friction modifier (M) preferably includes one or more selected from the group consisting of binuclear molybdenum dithiocarbamate, trinuclear molybdenum dithiocarbamate, and a molybdenum amine complex, and more preferably includes two or more thereof.
- binuclear molybdenum dithiocarbamate examples include a compound represented by the following general formula (1) and a compound represented by the following general formula (2).
- R 11 to R 14 each independently represent a hydrocarbon group, and may be the same as or different from each other.
- X 11 to X 18 each independently represent an oxygen atom or a sulfur atom, and may be the same as or different from each other. Provided that, at least two of X 11 to X 18 in the formula (1) are each a sulfur atom.
- the number of carbon atoms of the hydrocarbon group which may be selected as R 11 to R 14 is preferably 6 to 22.
- Examples of the hydrocarbon group which may be selected as R 11 to R 14 in the general formulae (1) and (2) include an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group, an alkylaryl group, and an arylalkyl group.
- alkyl group examples include a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, an undecyl group, a dodecyl group, a tridecyl group, a tetradecyl group, a pentadecyl group, a hexadecyl group, a heptadecyl group, and an octadecyl group.
- alkenyl group examples include a hexenyl group, a heptenyl group, an octenyl group, a nonenyl group, a decenyl group, an undecenyl group, a dodecenyl group, a tridecenyl group, a tetradecenyl group, and a pentadecenyl group.
- cycloalkyl group examples include a cyclohexyl group, a dimethylcyclohexyl group, an ethylcyclohexyl group, a methylcyclohexylmethyl group, a cyclohexylethyl group, a propylcyclohexyl group, a butylcyclohexyl group, and a heptylcyclohexyl group.
- aryl group examples include a phenyl group, a naphthyl group, an anthracenyl group, a biphenyl group, and a terphenyl group.
- alkylaryl group examples include a tolyl group, a dimethylphenyl group, a butylphenyl group, a nonylphenyl group, and a dimethylnaphthyl group.
- arylalkyl group examples include a methylbenzyl group, a phenylmethyl group, a phenylethyl group, and a diphenylmethyl group.
- molybdenum dialkyldithiocarbamate (M1) represented by the following general formula (m1) (hereinafter, also referred to as “compound (M1)”) is preferable.
- R 1 , R 2 , R 3 , and R 4 each independently represent a short-chain substituent group ( ⁇ ) which is an aliphatic hydrocarbon group having 4 to 12 carbon atoms or a long-chain substituent group ( ⁇ ) which is an aliphatic hydrocarbon group having 13 to 22 carbon atoms.
- the molar ratio [( ⁇ )/( ⁇ )] of the short-chain substituent group ( ⁇ ) to the long-chain substituent group ( ⁇ ) in the total molecule of the compound (M1) is 0.10 to 2.0.
- X 1 , X 2 , X 3 , and X 4 each independently represent an oxygen atom or a sulfur atom.
- Examples of the aliphatic hydrocarbon group having 4 to 12 carbon atoms which may be selected as the short-chain substituent group ( ⁇ ) include an alkyl group having 4 to 12 carbon atoms and an alkenyl group having 4 to 12 carbon atoms.
- a butyl group a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, an undecyl group, a dodecyl group, a butenyl group, a pentenyl group, a hexenyl group, a heptenyl group, an octenyl group, a nonenyl group, a decenyl group, an undecenyl group, and a dodecenyl group.
- These may be a linear chain or a branched chain.
- the number of carbon atoms of the aliphatic hydrocarbon group which may be selected as the short-chain substituent group ( ⁇ ) is preferably 5 to 11, more preferably 6 to 10, and still more preferably 7 to 9, from the viewpoint of more easily exhibiting the effects of the present invention.
- Examples of the aliphatic hydrocarbon group having 13 to 22 carbon atoms which may be selected as the long-chain substituent group ( ⁇ ) include an alkyl group having 13 to 22 carbon atoms and an alkenyl group having 13 to 22 carbon atoms.
- Specific examples thereof include a tridecyl group, a tetradecyl group, a pentadecyl group, a hexadecyl group, a heptadecyl group, an octadecyl group, a nonadecyl group, an icosyl group, a henicosyl group, a docosyl group, a tridecenyl group, a tetradecenyl group, a pentadecenyl group, a hexadecenyl group, a heptadecenyl group, an octadecenyl group, an oleyl group, a nonadecenyl group, an icosenyl group, a henicosenyl group, and a docosenyl group.
- These may be a linear chain or a branched chain.
- the number of carbon atoms of the aliphatic hydrocarbon group which may be selected as the long-chain substituent group ( ⁇ ) is preferably 13 to 20, more preferably 13 to 16, and still more preferably 13 to 14, from the viewpoint of more easily exhibiting the effects of the present invention.
- the molar ratio [( ⁇ )/( ⁇ )] of the short-chain substituent group ( ⁇ ) to the long-chain substituent group ( ⁇ ) in the total molecule thereof is 0.10 to 2.0.
- the molar ratio [( ⁇ )/( ⁇ )] is 0.10 or more, the influence of the compound (M1) on the copper-corrosion resistance is reduced, and the friction reducing action is also easily improved.
- the molar ratio [( ⁇ )/( ⁇ )] is 2.0 or less, the low-temperature storage stability is easily ensured.
- the molar ratio [( ⁇ )/( ⁇ )] is preferably 0.15 or more, and more preferably 0.20 or more, from the viewpoint of further reducing the influence on the copper corrosion resistance and from the viewpoint of more easily improving the friction reducing action.
- the molar ratio [( ⁇ )/( ⁇ )] is preferably 1.2 or less, more preferably 1.0 or less, still more preferably 0.80 or less, and even more preferably 0.60 or less, from the viewpoint of more easily ensuring the low-temperature storage stability.
- the upper limit values and the lower limit values of these numerical ranges can be arbitrarily combined. Specifically, it is preferably 0.15 to 1.2, more preferably 0.20 to 1.0, still more preferably 0.20 to 0.80, and even more preferably 0.20 to 0.60.
- the short-chain substituent group ( ⁇ ) and the long-chain substituent group ( ⁇ ) may be present together in the same molecule, or may not be present together in the same molecule. That is, it is only necessary that the mean value of the molar ratio [( ⁇ )/( ⁇ )] of the short-chain substituent group ( ⁇ ) to the long-chain substituent group ( ⁇ ) in the total molecule of the compound (M1) represented by the general formula (m1) is in the range of 0.10 to 2.0.
- a molecular group (m1-1) in which all of R 1 , R 2 , R 3 , and R 4 in the general formula (m1) are the short-chain substituent group ( ⁇ ) may be mixed
- a molecular group (m 1-2) in which all of R 1 , R 2 , R 3 , and R 4 are the long-chain substituent group ( ⁇ ) may be mixed
- a molecular group (m 1-3) in which a part of R 1 , R 2 , R 3 , and R 4 is the short-chain substituent group ( ⁇ ) and the rest is the long-chain substituent group ( ⁇ ) may be mixed.
- Examples of the trinuclear molybdenum dithiocarbamate include a compound represented by the following general formula (3). Mo 3 S k E m L n A p Q z (3)
- n is an integer of 1 to 4; and p is an integer of 0 or more.
- z is an integer of 0 to 5, inclusive of a non-stoichiometric value.
- E's are each independently an oxygen atom or a selenium atom, and for example, are one capable of substituting sulfur in a core as mentioned later.
- L's are each independently an anionic ligand having a carbon atom-containing organic group; a sum total of carbon atoms of the organic group in each of the ligands is 14 or more; and the respective ligands may be the same as or different from each other.
- A's are each independently an anion other than L.
- Q's are each independently a neutral compound capable of providing an electron and are existent for the purpose of fulfilling a vacant coordination site on the trinuclear molybdenum compound.
- the sum total of carbon atoms of the organic group in the anionic ligand(s) represented by L is preferably 14 to 50, more preferably 16 to 30, and still more preferably 18 to 24.
- a monoanionic ligand that is a monovalent anionic ligand is preferred, and specifically, ligands represented by the following general formulae (i) to (iv) are more preferred.
- the anionic ligand which is selected as L is preferably a ligand represented by the following general formula (iv).
- X 31 to X 37 and Y are each independently an oxygen atom or a sulfur atom, and may be the same as or different from each other.
- R 31 to R 35 are each independently an organic group, and may be the same as or different from each other.
- the number of carbon atoms of each of the organic groups which may be selected as R 31 , R 32 , and R 33 is preferably 14 to 50, more preferably 16 to 30, and still more preferably 18 to 24.
- the total number of carbon atoms of the two organic groups which may be selected as R 34 and R 35 in the formula (iv) is preferably 14 to 50, more preferably 16 to 30, and still more preferably 18 to 24.
- the number of carbon atoms of each of the organic groups which may be selected as R 34 and R 35 is preferably 7 to 30, more preferably 7 to 20, and still more preferably 8 to 13.
- organic group of R 34 and the organic group of R 35 may be the same as or different from each other, they are preferably different from each other.
- the number of carbon atoms of the organic group of R 34 and the number of carbon atoms of the organic group of R 35 may be the same as or different from each other, they are preferably different from each other.
- Examples of the organic group which is selected as R 31 to R 35 include a hydrocarbyl group, such as an alkyl group, an aryl group, a substituted aryl group, and an ether group.
- hydrocarbyl expresses a substituent having a carbon atom, which is directly bonded to the residue of the ligand, and in the scope of the present embodiment, characteristics thereof mainly rely on the hydrocarbyl. Examples of such a substituent include the following.
- hydrocarbon substituent examples include aliphatic substituents, such as an alkyl group and an alkenyl group; alicyclic substituents, such as a cycloalkyl group and a cycloalkenyl group; and aromatic nuclei substituted with an aromatic group, an aliphatic group, or an alicyclic group; and cyclic groups in which the ring is completed via another site in the ligand (namely, arbitrarily expressed two substituents may each form an alicyclic group).
- Examples of the substituted hydrocarbon substituent include the aforementioned hydrocarbon substituents having, as the substituent, a non-hydrocarbon group which does not change the characteristics of the hydrocarbyl group.
- Examples of the non-hydrocarbon group include a halogen group, such as a chloro group and a fluoro group, an amino group, an alkoxy group, a mercapto group, an alkyl mercapto group, a nitro group, a nitroso group, and a sulfoxy group.
- ligands derived from an alkylxanthogenate, a carboxylate, a dialkyldithiocarbamate, or a mixture thereof are preferred, and ligands derived from a dialkyldithiocarbamate are more preferred.
- the anion which may be selected as A may be either a monovalent anion or a divalent anion.
- examples of the anion which may be selected as A include a disulfide, a hydroxide, an alkoxide, an amide, a thiocyanate, and derivatives thereof.
- examples of Q include water, an amine, an alcohol, an ether, and a phosphine. Although Q's may be the same as or different from each other, they are preferably the same as each other.
- a compounds represented by the general formula (3) in which k is an integer of 4 to 7; n is 1 or 2; L is a monoanionic ligand; p is an integer of imparting electrical neutrality to the compound based on an anionic charge in A; and m and z are each 0 is preferred; and a compound in which k is an integer of 4 to 7; L is a monoanionic ligand; n is 4; and p, m, and z are each 0 is more preferred.
- a compound having a core represented by the following formula (IV-A) or (IV-B) is preferred.
- Each core has a net electrical charge of +4.
- Such a core is surrounded by an anionic ligand and an optionally existing anion other than the anionic ligand.
- Formation of the trinuclear molybdenum-sulfur compound requires selection of an appropriate anionic ligand (L) and other anion (A), depending on, for example, the number of sulfur and E atoms present in the core, i.e., the total anionic charge constituted of a sulfur atom, an E atom, if present, L, and A, if present, must be -4.
- the trinuclear molybdenum-sulfur compound may also contain a cation other than molybdenum, for example, an (alkyl)ammonium, an amine, or sodium.
- a preferred embodiment of the anionic ligand (L) and other anion (A) is a constitution having four monoanionic ligands.
- the molybdenum-sulfur cores may be interconnected by means of one or more multidentate ligands, i.e., a ligand having more than one functional group capable of binding to a molybdenum atom to form oligomers.
- molybdenum amine complex examples include molybdenum amine complexes obtained by reacting molybdenum trioxide and/or molybdic acid, which are hexavalent molybdenum compounds, with an amine compound.
- Preferred examples of the amine compound include an alkylamine and a dialkylamine.
- the alkylamine and dialkylamine to be reacted with the hexavalent molybdenum compound are not particularly limited, and examples thereof include an alkylamine and dialkylamine having an alkyl group having 1 to 30 carbon atoms.
- the content of the molybdenum-based friction modifier (M) is preferably 0.30% by mass or more, more preferably 0.40% by mass or more, and still more preferably 0.50% by mass or more, and is preferably 3.0% by mass or less, more preferably 2.0% by mass or less, and still more preferably 1.0% by mass or less, based on the total amount of the lubricating oil composition, from the viewpoint of reducing the inter-metal friction coefficient to obtain excellent fuel saving performance.
- the content is preferably 0.30% by mass to 3.0% by mass, more preferably 0.40% by mass to 2.0% by mass, and still more preferably 0.50% by mass to 1.0% by mass.
- the content of the molybdenum atom derived from the molybdenum-based friction modifier (M) is preferably 50 ppm by mass or more, more preferably 80 ppm by mass or more, and still more preferably 100 ppm by mass or more, and is preferably 2,000 ppm by mass or less, more preferably 1,500 ppm by mass or less, and still more preferably 1,000 ppm by mass or less, based on the total amount (100% by mass) of the lubricating oil composition, from the viewpoint of improving the friction reducing action.
- the upper limit values and the lower limit values of these numerical ranges can be arbitrarily combined, and specifically, the content is preferably 50 to 2,000 ppm by mass, more preferably 80 to 1,500 ppm by mass, and still more preferably 100 to 1,000 ppm by mass.
- the content ratio of the binuclear molybdenum dithiocarbamate to the molybdenum amine complex is preferably 0.1 to 10, more preferably 1.5 to 8.0, and still more preferably 3.0 to 7.0 in terms of mass ratio from the viewpoint of improving the friction reducing action.
- the lubricating oil composition according to the present embodiment may contain other components in addition to the above-described components as necessary, as long as the effects of the present invention are not impaired.
- additives examples include a metal-based detergent, a pour point depressant, an antioxidant, an anti-wear agent, a friction modifier other than the molybdenum-based friction modifier (M), an extreme pressure agent, a viscosity index improver, a rust inhibitor, an anti-foaming agent, an oiliness improver, a metal deactivator, and a demulsifier.
- M molybdenum-based friction modifier
- the metal-based detergent examples include an organic acid metal salt compound containing a metal atom selected from an alkali metal and an alkaline earth metal, and specific examples thereof include a metal salicylate, metal phenate, and metal sulfonate containing a metal atom selected from an alkali metal and an alkaline earth metal.
- alkali metal refers to lithium, sodium, potassium, rubidium, and cesium.
- alkaline earth metal refers to beryllium, magnesium, calcium, strontium, and barium.
- the metal atom contained in the metal-based detergent is preferably sodium, calcium, magnesium, or barium, and more preferably calcium or magnesium, from the viewpoint of improving the detergency at high temperature.
- the metal salicylate is preferably a compound represented by the following general formula (4)
- the metal phenate is preferably a compound represented by the following general formula (5)
- the metal sulfonate is preferably a compound represented by the following general formula (6).
- M is a metal atom selected from an alkali metal and an alkaline earth metal, preferably sodium, calcium, magnesium, or barium, and more preferably calcium or magnesium.
- M E is an alkaline earth metal, preferably calcium, magnesium, or barium, and more preferably calcium or magnesium
- q is the valence of M and is 1 or 2.
- R 31 and R 32 are each independently a hydrogen atom or a hydrocarbon group having 1 to 18 carbon atoms.
- S represents a sulfur atom.
- r is an integer of 0 or more, and preferably an integer of 0 to 3.
- Examples of the hydrocarbon group which may be selected as R 31 and R 32 include an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 1 to 18 carbon atoms, a cycloalkyl group having 3 to 18 ring carbon atoms, an aryl group having 6 to 18 ring carbon atoms, an alkylaryl group having 7 to 18 carbon atoms, and an arylalkyl group having 7 to 18 carbon atoms.
- calcium salicylate, calcium phenate, calcium sulfonate, magnesium salicylate, magnesium phenate, and magnesium sulfonate are preferable from the viewpoint of improving the high-temperature detergent dispersibility and from the viewpoint of the solubility in the base oil.
- These metal-based detergents may be any of neutral salts, basic salts, overbased salts, and mixtures thereof.
- the base number of the metal-based detergent is preferably 0 to 600 mgKOH/g.
- the base number of the metal-based detergent is preferably 10 to 600 mgKOH/g, and more preferably 20 to 500 mgKOH/g.
- base number means a base number measured by a perchloric acid method in accordance with 7. of JIS K 2501:2003 "Petroleum products and lubricants - Determination of neutralization number”.
- the content of the metal-based detergent is preferably 0.01% by mass to 10% by mass, more preferably 0. 1% by mass to 5.0% by mass, still more preferably 0.2% by mass to 3.0% by mass, and even more preferably 0.3% by mass to 2.0% by mass, based on the total amount (100% by mass) of the lubricating oil composition, from the viewpoint of more easily exhibiting the effects of the present invention.
- the metal-based detergent may be used alone or may be used in combination of two or more thereof.
- the preferable total content is also the same as the content described above.
- the content of the calcium atom derived from the metal-based detergent is preferably 0.05% by mass or more, more preferably 0.10% by mass or more, and still more preferably 0.11% by mass or more, based on the total amount (100% by mass) of the lubricating oil composition, from the viewpoint of high-temperature detergent dispersibility.
- the content of the calcium atom derived from the metal-based detergent is preferably 0.50% by mass or less, more preferably 0.40% by mass or less, still more preferably 0.30% by mass or less, even more preferably 0.20% by mass or less, yet still more preferably 0.15% by mass or less, and yet even more preferably 0.13% by mass or less, based on the total amount (100% by mass) of the lubricating oil composition, from the viewpoint of reducing the sulfated ash content and from the viewpoint of preventing LSPI (abnormal combustion).
- the content of the magnesium atom derived from the metal-based detergent is preferably 0.02% by mass or more, more preferably 0.03% by mass or more, and still more preferably 0.04% by mass or more, based on the total amount (100% by mass) of the lubricating oil composition, from the viewpoint of high-temperature detergent dispersibility.
- the content of the magnesium atom derived from the metal-based detergent is preferably 0.07% by mass or less, more preferably 0.06% by mass or less, and still more preferably 0.05% by mass or less, based on the total amount (100% by mass) of the lubricating oil composition, from the viewpoint of reducing the sulfated ash content and from the viewpoint of preventing LSPI (abnormal combustion).
- the pour point depressant examples include an ethylene-vinyl acetate copolymer, a condensate of chlorinated paraffin and naphthalene, a condensate of chlorinated paraffin and phenol, polymethacrylate (PMA; polyalkyl (meth)acrylate and the like), polyvinyl acetate, polybutene, and polyalkylstyrene, and polymethacrylate is preferably used.
- the weight average molecular weight (Mw) of these polymers used as the pour point depressant is preferably 50,000 to 150,000.
- antioxidant examples include an amine-based antioxidant and a phenol-based antioxidant.
- amine-based antioxidant examples include a diphenylamine-based antioxidant such as diphenylamine and an alkylated diphenylamine having an alkyl group having 3 to 20 carbon atoms; and a naphthylamine-based antioxidant such as phenyl- ⁇ -naphthylamine, phenyl- ⁇ -naphthylamine, a substituted phenyl- ⁇ -naphthylamine having an alkyl group having 3 to 20 carbon atoms, and a substituted phenyl- ⁇ -naphthylamine having an alkyl group having 3 to 20 carbon atoms.
- diphenylamine-based antioxidant such as diphenylamine and an alkylated diphenylamine having an alkyl group having 3 to 20 carbon atoms
- a naphthylamine-based antioxidant such as phenyl- ⁇ -naphthylamine, phenyl- ⁇ -naphthylamine,
- phenol-based antioxidant examples include a monophenol-based antioxidant such as 2,6-di-tert-butylphenol, 2,6-di-tert-butyl-4-methylphenol, 2,6-di-tert-butyl-4-ethylphenol, isooctyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, and octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate; a diphenol-based antioxidant such as 4,4'-methylenebis(2,6-di-tert-butylphenol) and 2,2'-methylenebis(4-ethyl-6-tert-butylphenol); and a hindered phenol-based antioxidant.
- a monophenol-based antioxidant such as 2,6-di-tert-butylphenol, 2,6-di-tert-butyl-4-methylphenol, 2,6-di-tert
- anti-wear agent examples include zinc-containing compounds such as zinc dialkyldithiophosphate (ZnDTP) and zinc phosphate; sulfur-containing compounds such as disulfides, sulfurized olefins, sulfurized oils and fats, sulfurized esters, thiocarbonates, thiocarbamates, and polysulfides; phosphorus-containing compounds such as phosphite esters, phosphate esters, phosphonate esters, and amine or metal salts thereof; and sulfur- and phosphorus-containing anti-wear agents such as thiophosphite esters, thiophosphate esters, thiophosphonate esters, and amine or metal salts thereof.
- ZnDTP zinc dialkyldithiophosphate
- sulfur-containing compounds such as disulfides, sulfurized olefins, sulfurized oils and fats, sulfurized esters, thiocarbonates, thiocarbamates, and polysulfides
- phosphorus-containing compounds
- ZnDTP zinc dialkyldithiophosphate
- the content of the zinc dithiophosphate is preferably 200 to 5,000 ppm by mass, and more preferably 300 to 2,000 ppm by mass, in terms of phosphorus atom based on the total amount of the composition.
- the lubricating oil composition according to the present embodiment may contain a friction modifier other than the component (M).
- the component (M) is excellent in effectively exhibiting the friction reducing action in an environment in which the temperature of the lubricating oil composition is high, but by containing a friction modifier other than the component (M) in the lubricating oil composition, the friction reducing action can be effectively exhibited even in an environment in which the temperature of the lubricating oil composition is low.
- Examples of the friction modifier other than the molybdenum-based friction modifier (M) include an ash-free friction modifier such as an aliphatic amine, a fatty acid ester, a fatty acid amide, a fatty acid, an aliphatic alcohol, and an aliphatic ether; an oil and fat; an amine, an amide, a sulfide ester, a phosphate ester, a phosphite ester, and a phosphate ester amine salt.
- an ash-free friction modifier such as an aliphatic amine, a fatty acid ester, a fatty acid amide, a fatty acid, an aliphatic alcohol, and an aliphatic ether
- an oil and fat an amine, an amide, a sulfide ester, a phosphate ester, a phosphite ester, and a phosphate ester amine salt.
- an aliphatic amine is preferable, and among aliphatic amines, an aliphatic amine having at least one alkyl group or alkenyl group having 2 to 30 carbon atoms in the molecule is preferable.
- a diethanolamine compound represented by the following general formula (7) is preferable.
- R 1 is a monovalent aliphatic hydrocarbon group having 12 to 30 carbon atoms.
- Preferred examples of the aliphatic hydrocarbon group having 12 to 30 carbon atoms of R 1 include a linear or branched alkyl group having 12 to 30 carbon atoms and a linear or branched alkenyl group having 12 to 30 carbon atoms.
- the number of carbon atoms in these groups is more preferably 12 to 24, and still more preferably 16 to 20.
- linear or branched alkyl group having 12 to 30 carbon atoms examples include various dodecyl groups such as n-dodecyl group, isododecyl group, sec-dodecyl group, tert-dodecyl group, and neododecyl group (hereinafter, functional groups having a predetermined number of carbon atoms including linear, branched, and isomers thereof may be abbreviated to "various functional groups”), various tridecyl groups, various tetradecyl groups, various pentadecyl groups, various hexadecyl groups, various heptadecyl groups, various octadecyl groups, various nonadecyl groups, various icosyl groups, various henicosyl groups, various docosyl groups, various tricosyl groups, various tetracosyl groups, various pentacosyl groups, various hexacosyl groups, various various do
- examples of the linear or branched alkenyl group having 12 to 30 carbon atoms include various dodecenyl groups, various tridecenyl groups, various tetradecenyl groups, various pentadecenyl groups, various hexadecenyl groups, various heptadecenyl groups, various octadecenyl groups, various nonadecenyl groups, various icosenyl groups, various henicosenyl groups, various docosenyl groups, various trichocenyl groups, various tetracocenyl groups, various pentacocenyl groups, various hexacocenyl groups, various heptacocenyl groups, various octacocenyl groups, various nonacocenyl groups, and various triacontinyl groups.
- various hexadecyl groups, various heptadecyl groups, and various octadecyl groups which are alkyl groups having 16 to 18 carbon atoms and various hexadecenyl groups, various heptadecenyl groups, and various octadecenyl groups which are alkenyl groups having 16 to 18 carbon atoms are preferable, various hexadecyl groups, various octadecyl groups, and various octadecenyl groups are more preferable, and a n-hexadecyl group (a palmityl group), a n-octadecyl group (a stearyl group), and a n-octadecenyl group (an oleyl group) are still more preferable.
- Preferred specific compounds of the diethanolamine compound represented by the general formula (7) include one or more selected from stearyldiethanolamine (in the general formula (7), R 1 is a n-octadecyl group (a stearyl group)), oleyldiethanolamine (in the general formula (7), R 1 is a n-octadecenyl group (an oleyl group)), and palmityldiethanolamine (in the general formula (7), R 1 is a n-hexadecyl group (a palmityl group)).
- stearyldiethanolamine in the general formula (7), R 1 is a n-octadecyl group (a stearyl group)
- oleyldiethanolamine in the general formula (7), R 1 is a n-octadecenyl group (an oleyl group)
- palmityldiethanolamine in the general formula (7), R 1 is a
- the extreme pressure agent examples include a sulfur-based extreme pressure agent such as a sulfide, a sulfoxide, a sulfone, and a thiophosphinate, a halogen-based extreme pressure agent such as a chlorinated hydrocarbon, and an organic metal-based extreme pressure agent.
- a sulfur-based extreme pressure agent such as a sulfide, a sulfoxide, a sulfone, and a thiophosphinate
- a halogen-based extreme pressure agent such as a chlorinated hydrocarbon
- an organic metal-based extreme pressure agent examples of the extreme pressure agent.
- a compound having a function as an extreme pressure agent can also be used.
- rust inhibitor examples include a fatty acid, an alkenyl succinic acid half ester, a fatty acid soap, an alkyl sulfonate, a polyhydric alcohol fatty acid ester, a fatty acid amine, an oxidized paraffin, and an alkyl polyoxyethylene ether.
- anti-foaming agent examples include a silicone oil such as dimethylpolysiloxane, a fluorosilicone oil, and a fluoroalkyl ether.
- oiliness improver examples include an aliphatic saturated or unsaturated monocarboxylic acid such as stearic acid and oleic acid; a polymerized fatty acid such as dimer acid and hydrogenated dimer acid; a hydroxy fatty acid such as ricinoleic acid and 12-hydroxystearic acid; an aliphatic saturated or unsaturated monoalcohol such as lauryl alcohol and oleyl alcohol; an aliphatic saturated or unsaturated monoamine such as stearylamine and oleylamine; an aliphatic saturated or unsaturated monocarboxylic acid amide such as lauric acid amide and oleic acid amide; and a partial ester of a polyhydric alcohol and an aliphatic saturated or unsaturated monocarboxylic acid, such as glycerin and sorbitol.
- an aliphatic saturated or unsaturated monocarboxylic acid such as stearic acid and oleic acid
- a polymerized fatty acid
- the metal deactivator examples include a benzotriazole-based compound, a tolyltriazole-based compound, a thiadiazole-based compound, an imidazole-based compound, and a pyrimidine-based compound.
- the demulsifier examples include anionic surfactants such as sulfuric acid ester salts of castor oil and petroleum sulfonic acid salts; cationic surfactants such as quaternary ammonium salts and imidazolines; polyalkylene glycol-based nonionic surfactants such as polyoxyethylene alkyl ethers, polyoxyethylene alkyl phenyl ethers, and polyoxyethylene alkyl naphthyl ethers; polyoxyalkylene polyglycols and esters of dicarboxylic acids thereof; and alkylene oxide adducts of alkylphenol-formaldehyde polycondensates.
- anionic surfactants such as sulfuric acid ester salts of castor oil and petroleum sulfonic acid salts
- cationic surfactants such as quaternary ammonium salts and imidazolines
- polyalkylene glycol-based nonionic surfactants such as polyoxyethylene alkyl ethers, polyoxyethylene alkyl
- each of the contents is usually 0.001% by mass to 15% by mass, preferably 0.005% by mass to 10% by mass, more preferably 0.01% by mass to 7% by mass, and still more preferably 0.03% by mass to 5% by mass, based on the total amount (100% by mass) of the lubricating oil composition.
- the additives as the other components may be mixed with the other components in the form of a solution obtained by diluting and dissolving the additives in a part of the mineral base oil (A) in consideration of handleability, solubility in the mineral base oil (A), and the like.
- the above-mentioned content of the additives as the other components means the content in terms of active component (in terms of resin component) excluding a diluent oil.
- the 40°C kinematic viscosity of the lubricating oil composition according to the present embodiment is preferably 5.0 mm 2 /s or more, more preferably 10.0 mm 2 /s or more, and still more preferably 15.0 mm 2 /s or more, and is preferably 65.0 mm 2 /s or less, more preferably 45.0 mm 2 /s or less, and still more preferably 30.0 mm 2 /s or less, from the viewpoint of improving fuel saving performance with respect to the upper limit value and from the viewpoint of reducing the loss of the lubricating oil composition due to evaporation and ensuring oil film retention with respect to the lower limit value.
- the upper limit values and the lower limit values of these numerical ranges can be arbitrarily combined, and specifically, it is preferably 5.0 to 65.0 mm 2 /s, more preferably 10.0 to 45.0 mm 2 /s, and still more preferably 15.0 to 30.0 mm 2 /s.
- the 100°C kinematic viscosity of the lubricating oil composition according to the present embodiment is preferably 3.0 mm 2 /s or more, more preferably 3.5 mm 2 /s or more, and still more preferably 4.0 mm 2 /s or more, and is preferably 9.3 mm 2 /s or less, more preferably 8.2 mm 2 /s or less, and still more preferably 7.1 mm 2 /s or less, from the viewpoint of improving fuel saving performance with respect to the upper limit value and from the viewpoint of reducing the loss of the lubricating oil composition due to evaporation and ensuring oil film retention with respect to the lower limit value.
- the upper limit values and the lower limit values of these numerical ranges can be arbitrarily combined, and specifically, it is preferably 3.0 to 9.3 mm 2 /s, more preferably 3.5 to 8.2 mm 2 /s, and still more preferably 4.0 to 7.1 mm 2 /s.
- the viscosity index of the lubricating oil composition according to the present embodiment is preferably 100 or more, more preferably 110 or more, still more preferably 120 or more, and even more preferably 130 or more. When the viscosity index is within the above range, the viscosity change due to the temperature becomes small.
- the 40°C kinematic viscosity, the 100°C kinematic viscosity, and the viscosity index can be measured or calculated in accordance with JIS K 2283:2000.
- the 150°C HTHS viscosity (HTHS 150 ) of the lubricating oil composition according to the present embodiment is preferably 1.5 mPa s or more, and more preferably 1.7 mPa s or more, and is preferably less than 3.7 mPa s, and more preferably less than 3.0 mPa ⁇ s.
- the 150°C HTHS viscosity (HTHS 150 ) of the lubricating oil composition according to the present embodiment can be measured in accordance with ASTM D 4683 using a TBS-high temperature viscosimeter (Tapered Bearing Simulator Viscometer) at a shear rate of 10 6 /s.
- the friction coefficient when the lubricating oil composition according to the present embodiment is used can be evaluated by using, for example, an SRV tester (manufactured by Optimol Co., Ltd.). Specifically, it can be evaluated by the method described in Examples described later.
- the lubricating oil composition according to the present embodiment preferably has a friction coefficient of 0.097 or less, and more preferably 0.095 or less under conditions in which the oil temperature is 30°C and the maximum height roughness (Rz) of the disk surfaces is less than 0.20 ⁇ m.
- the lubricating oil composition according to the present embodiment has an excellent effect of reducing the friction coefficient.
- the lubricating oil composition according to the present embodiment is preferably used for internal combustion engines, and more preferably used for internal combustion engines of four wheeled vehicles and motorcycles.
- the lubricating oil composition according to the present embodiment is preferably used as an engine oil, but is more preferably used as an engine oil for an automobile engine equipped with a hybrid mechanism or an idling stop mechanism because the lubricating oil composition has an excellent effect of reducing a friction coefficient in a low temperature region.
- the lubricating oil composition according to the present embodiment is suitable for use as a lubricating oil composition for internal combustion engines (engine oils for internal combustion engines) used in automobiles and the like, but can also be applied to other uses.
- the lubricating oil composition according to the present embodiment has an effect of significantly reducing the friction coefficient between members having small surface roughness, it is also suitable as an engine oil for an engine in which the inside of a cylinder bore of an engine block is mirror-finished. More specifically, in the engine using the lubricating oil composition according to the present embodiment, the maximum height roughness (Rz) inside the cylinder bore is preferably less than 0.45 pm, more preferably less than 0.30 pm, and still more preferably less than 0.20 pm.
- the maximum height roughness (Rz) can be measured in accordance with JIS B 0601-2001.
- the method for producing the lubricating oil composition according to the present embodiment is not particularly limited.
- the method for producing the lubricating oil composition according to the present embodiment includes a step of mixing the mineral base oil (A), the polymer (B), and the molybdenum-based friction modifier (M). If necessary, one or more selected from the other components described above may be further mixed.
- the method for mixing the above-described components is not particularly limited, and examples thereof include a method including a step of blending respective components (the component (B), the component (M), and one or more selected from the other components) into the mineral base oil (A). Further, the respective components may be blended in the form of a solution (dispersion) by adding a diluent oil or the like. After the respective components are blended, it is preferable to uniformly disperse the components by stirring according to a known method.
- the present embodiment also provides an engine including the lubricating oil composition of the present invention described above.
- examples of the engine include an engine for a vehicle such as an automobile, but an engine for an automobile is preferable, and an engine for an automobile equipped with a hybrid mechanism or an idling stop mechanism in which the oil temperature is likely to decrease is more preferable.
- the maximum height roughness (Rz) of the cylinder bore inner surface of the engine block is preferably less than 0.45 pm, more preferably less than 0.30 pm, and still more preferably less than 0.20 pm, for the reasons described above.
- the present invention also provides a method for lubricating an engine, including lubricating an engine using the lubricating oil composition according to the present embodiment described above.
- the engine to be lubricated by the lubrication method of the present embodiment is the same as the engine provided by the present invention described above.
- a preferred aspect of the method for lubricating an engine according to the present embodiment is a method for lubricating an engine of an automobile equipped with a hybrid mechanism or an idling stop mechanism, which includes lubricating an engine in which the maximum height roughness (Rz) of the cylinder bore inner surface of the engine block is preferably less than 0.45 pm, more preferably less than 0.30 pm or less than 0.20 pm, using the lubricating oil composition of the present invention described above.
- the 40°C kinematic viscosity, the 100°C kinematic viscosity, and the viscosity index of the lubricating oil composition were measured or calculated in accordance with JIS K 2283:2000.
- the 150°C HTHS viscosity was measured or calculated in accordance with JPI-5S-36-03.
- the content in Table 1 is a content in terms of resin content.
- the content of molybdenum atoms in the lubricating oil composition is a value reflecting the content of molybdenum atoms derived from the molybdenum-based friction modifier (M).
- the content of phosphorus atoms in the lubricating oil composition is a value reflecting the content of phosphorus atoms derived from ZnDTP which is another additive.
- the lubricating oil compositions of Examples 1 to 11 which satisfy all the features of the present invention, have a friction coefficient of 0.098 or less with respect to the mirror-finished disk at an oil temperature of 30°C, and are thus excellent in the effect of reducing the friction coefficient.
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- Organic Chemistry (AREA)
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| Application Number | Priority Date | Filing Date | Title |
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| JP2021058399 | 2021-03-30 | ||
| PCT/JP2022/007934 WO2022209487A1 (fr) | 2021-03-30 | 2022-02-25 | Composition d'huile lubrifiante |
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| EP4317375A1 true EP4317375A1 (fr) | 2024-02-07 |
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| US (1) | US20240199975A1 (fr) |
| EP (1) | EP4317375A1 (fr) |
| JP (1) | JPWO2022209487A1 (fr) |
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| JP4614427B2 (ja) * | 2003-08-06 | 2011-01-19 | 日産自動車株式会社 | 低摩擦摺動機構、手動変速機及び終減速機 |
| JP4876464B2 (ja) * | 2005-07-19 | 2012-02-15 | 株式会社豊田中央研究所 | 低摩擦摺動部材 |
| JP5727713B2 (ja) * | 2010-03-19 | 2015-06-03 | 出光興産株式会社 | 内燃機関用潤滑油組成物 |
| SG10201504239SA (en) * | 2014-06-02 | 2016-01-28 | Infineum Int Ltd | Lubrication oil compositions |
| JP2018062551A (ja) * | 2016-10-11 | 2018-04-19 | 出光興産株式会社 | 潤滑油組成物 |
| JP7098623B2 (ja) * | 2017-08-10 | 2022-07-11 | 出光興産株式会社 | 潤滑油組成物、内燃機関、及び内燃機関の潤滑方法 |
| JP2019189668A (ja) * | 2018-04-18 | 2019-10-31 | Ｅｍｇルブリカンツ合同会社 | 潤滑油組成物 |
| JP7352483B2 (ja) * | 2019-02-25 | 2023-09-28 | 三洋化成工業株式会社 | 摩擦調整剤及び潤滑油組成物 |
| EP3950905B1 (fr) * | 2019-03-29 | 2024-01-17 | Idemitsu Kosan Co.,Ltd. | Composition d'huile de graissage |
| JP7237753B2 (ja) * | 2019-06-28 | 2023-03-13 | 出光興産株式会社 | 内燃機関用潤滑油組成物 |
| JP2020158784A (ja) * | 2020-06-30 | 2020-10-01 | 出光興産株式会社 | 潤滑油組成物、内燃機関、及び内燃機関の潤滑方法 |
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| WO2022209487A1 (fr) | 2022-10-06 |
| JPWO2022209487A1 (fr) | 2022-10-06 |
| US20240199975A1 (en) | 2024-06-20 |
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