WO2023282134A1 - Composition lubrifiante - Google Patents
Composition lubrifiante Download PDFInfo
- Publication number
- WO2023282134A1 WO2023282134A1 PCT/JP2022/025869 JP2022025869W WO2023282134A1 WO 2023282134 A1 WO2023282134 A1 WO 2023282134A1 JP 2022025869 W JP2022025869 W JP 2022025869W WO 2023282134 A1 WO2023282134 A1 WO 2023282134A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mass
- lubricating oil
- less
- oil composition
- component
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 224
- 239000000314 lubricant Substances 0.000 title abstract 4
- -1 thiadiazole compound Chemical class 0.000 claims abstract description 61
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 28
- 125000004433 nitrogen atom Chemical group N* 0.000 claims abstract description 22
- 239000002199 base oil Substances 0.000 claims abstract description 17
- 239000010687 lubricating oil Substances 0.000 claims description 215
- 125000000217 alkyl group Chemical group 0.000 claims description 45
- 229910052717 sulfur Inorganic materials 0.000 claims description 20
- 125000004434 sulfur atom Chemical group 0.000 claims description 19
- 239000002253 acid Substances 0.000 claims description 16
- 229910019142 PO4 Inorganic materials 0.000 claims description 14
- 235000021317 phosphate Nutrition 0.000 claims description 14
- 239000003638 chemical reducing agent Substances 0.000 claims description 12
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 claims description 9
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 8
- 150000001336 alkenes Chemical class 0.000 claims description 6
- 230000001050 lubricating effect Effects 0.000 claims description 6
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 6
- QCJQWJKKTGJDCM-UHFFFAOYSA-N [P].[S] Chemical class [P].[S] QCJQWJKKTGJDCM-UHFFFAOYSA-N 0.000 claims description 5
- 150000003018 phosphorus compounds Chemical class 0.000 claims description 2
- KZNICNPSHKQLFF-UHFFFAOYSA-N dihydromaleimide Natural products O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 abstract description 6
- 229960002317 succinimide Drugs 0.000 abstract description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 50
- 150000001875 compounds Chemical class 0.000 description 36
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 33
- 229910052802 copper Inorganic materials 0.000 description 33
- 239000010949 copper Substances 0.000 description 33
- 238000010828 elution Methods 0.000 description 30
- 230000003647 oxidation Effects 0.000 description 23
- 238000007254 oxidation reaction Methods 0.000 description 23
- 239000003921 oil Substances 0.000 description 21
- 125000003342 alkenyl group Chemical group 0.000 description 17
- 238000012360 testing method Methods 0.000 description 15
- 239000003599 detergent Substances 0.000 description 13
- 230000002401 inhibitory effect Effects 0.000 description 12
- 239000000654 additive Substances 0.000 description 11
- 125000002947 alkylene group Chemical group 0.000 description 10
- 239000003963 antioxidant agent Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 10
- 239000002480 mineral oil Substances 0.000 description 9
- 125000003118 aryl group Chemical group 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000003607 modifier Substances 0.000 description 8
- 235000014113 dietary fatty acids Nutrition 0.000 description 7
- 239000000194 fatty acid Substances 0.000 description 7
- 229930195729 fatty acid Natural products 0.000 description 7
- VLLMWSRANPNYQX-UHFFFAOYSA-N thiadiazole Chemical compound C1=CSN=N1.C1=CSN=N1 VLLMWSRANPNYQX-UHFFFAOYSA-N 0.000 description 7
- 230000003078 antioxidant effect Effects 0.000 description 6
- 239000002585 base Substances 0.000 description 6
- 239000002270 dispersing agent Substances 0.000 description 6
- 239000006078 metal deactivator Substances 0.000 description 6
- 235000010446 mineral oil Nutrition 0.000 description 6
- 239000010452 phosphate Substances 0.000 description 6
- 125000004437 phosphorous atom Chemical group 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 5
- 230000002378 acidificating effect Effects 0.000 description 5
- 239000002518 antifoaming agent Substances 0.000 description 5
- 229910052796 boron Inorganic materials 0.000 description 5
- 229910052791 calcium Inorganic materials 0.000 description 5
- 239000011575 calcium Substances 0.000 description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 5
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- 239000004711 α-olefin Substances 0.000 description 5
- 150000001412 amines Chemical class 0.000 description 4
- 125000004429 atom Chemical group 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 4
- 239000003112 inhibitor Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 125000000962 organic group Chemical group 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- 230000001629 suppression Effects 0.000 description 4
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 150000002430 hydrocarbons Chemical group 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000013112 stability test Methods 0.000 description 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 239000001993 wax Substances 0.000 description 3
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 101100208720 Homo sapiens USP5 gene Proteins 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-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
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 102100021017 Ubiquitin carboxyl-terminal hydrolase 5 Human genes 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 125000006267 biphenyl group Chemical group 0.000 description 2
- 125000004369 butenyl group Chemical group C(=CCC)* 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000004517 catalytic hydrocracking Methods 0.000 description 2
- 238000001816 cooling 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
- 230000000994 depressogenic effect Effects 0.000 description 2
- 125000005066 dodecenyl group Chemical group C(=CCCCCCCCCCC)* 0.000 description 2
- 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 2
- 150000002148 esters Chemical class 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 239000012208 gear oil Substances 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
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 2
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 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 description 2
- 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 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000001624 naphthyl group Chemical group 0.000 description 2
- 230000007935 neutral effect Effects 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
- 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
- 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 2
- 125000002255 pentenyl group Chemical group C(=CCCC)* 0.000 description 2
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
- 150000003014 phosphoric acid esters Chemical class 0.000 description 2
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 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 2
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 2
- 125000005063 tetradecenyl group Chemical group C(=CCCCCCCCCCCCC)* 0.000 description 2
- 150000004867 thiadiazoles Chemical group 0.000 description 2
- 125000005040 tridecenyl group Chemical group C(=CCCCCCCCCCCC)* 0.000 description 2
- 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 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
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- BXRRILFCEKZKPU-UHFFFAOYSA-N 2,5-bis(2-methyloctan-2-yldisulfanyl)-1,3,4-thiadiazole Chemical compound CCCCCCC(C)(C)SSC1=NN=C(SSC(C)(C)CCCCCC)S1 BXRRILFCEKZKPU-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
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 description 1
- NBPOOCGXISZKSX-UHFFFAOYSA-N 6-methylheptyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)CCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NBPOOCGXISZKSX-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Chemical class 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- XYRMLECORMNZEY-UHFFFAOYSA-B [Mo+4].[Mo+4].[Mo+4].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S Chemical compound [Mo+4].[Mo+4].[Mo+4].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S XYRMLECORMNZEY-UHFFFAOYSA-B 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 125000004450 alkenylene group Chemical group 0.000 description 1
- 125000002877 alkyl aryl group Chemical group 0.000 description 1
- 229940045714 alkyl sulfonate alkylating agent Drugs 0.000 description 1
- 150000008052 alkyl sulfonates Chemical class 0.000 description 1
- 125000002178 anthracenyl group Chemical group C1(=CC=CC2=CC3=CC=CC=C3C=C12)* 0.000 description 1
- 125000005428 anthryl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C3C(*)=C([H])C([H])=C([H])C3=C([H])C2=C1[H] 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 125000000732 arylene group Chemical group 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 compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- AVVIDTZRJBSXML-UHFFFAOYSA-L calcium;2-carboxyphenolate;dihydrate Chemical compound O.O.[Ca+2].OC1=CC=CC=C1C([O-])=O.OC1=CC=CC=C1C([O-])=O AVVIDTZRJBSXML-UHFFFAOYSA-L 0.000 description 1
- 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 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 150000005676 cyclic carbonates Chemical class 0.000 description 1
- 125000005724 cycloalkenylene group Chemical group 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 125000002993 cycloalkylene group Chemical group 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical class C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 1
- 125000005982 diphenylmethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000010696 ester oil Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 125000004464 hydroxyphenyl group Chemical group 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 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 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- VLAPMBHFAWRUQP-UHFFFAOYSA-L molybdic acid Chemical class O[Mo](O)(=O)=O VLAPMBHFAWRUQP-UHFFFAOYSA-L 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 125000005064 octadecenyl group Chemical group C(=CCCCCCCCCCCCCCCCC)* 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 125000002958 pentadecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 125000005561 phenanthryl group Chemical group 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- 125000000286 phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 1
- 150000008301 phosphite esters Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 229920013636 polyphenyl ether polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 150000003873 salicylate salts Chemical class 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M157/00—Lubricating compositions characterised by the additive being a mixture of two or more macromolecular compounds covered by more than one of the main groups C10M143/00 - C10M155/00, each of these compounds being essential
- C10M157/06—Lubricating compositions characterised by the additive being a mixture of two or more macromolecular compounds covered by more than one of the main groups C10M143/00 - C10M155/00, each of these compounds being essential at least one of them being a sulfur-, selenium- or tellurium-containing compound
-
- 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
- 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
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
- C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
- C10M2219/106—Thiadiazoles
-
- 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
-
- 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
- C10M2223/047—Thioderivatives not containing metallic elements
-
- 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
-
- 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
-
- 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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
-
- 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
- C10N2030/14—Metal deactivation
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
-
- 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
- C10N2040/08—Hydraulic fluids, e.g. brake-fluids
-
- 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
- C10N2040/14—Electric or magnetic purposes
- C10N2040/16—Dielectric; Insulating oil or insulators
-
- 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
-
- 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
- C10N2040/30—Refrigerators lubricants or compressors lubricants
Definitions
- the present invention relates to a lubricating oil composition, a speed reducer, and the use of the lubricating oil composition.
- Lubricating oil compositions are used in these mechanisms, and lubricating oil compositions that can meet various demands have been developed.
- Patent Document 1 for the purpose of providing a gear oil composition having both fuel-saving performance and sufficient durability of gears, bearings, etc., a low-viscosity mineral oil-based lubricating base oil and a high-viscosity solvent-refined mineral oil are disclosed.
- a gear oil composition is disclosed in which zinc dialkyldithiophosphate and an alkaline earth metal-based detergent are blended in predetermined blending amounts in a base oil obtained by blending a base lubricating oil in a predetermined proportion.
- lubricating oil compositions used in various devices are required to have properties such as scuffing resistance, copper elution inhibitory effect, oxidation stability, etc. depending on the mode of the device, in addition to insulating properties.
- properties such as scuffing resistance, copper elution inhibitory effect, oxidation stability, etc. depending on the mode of the device, in addition to insulating properties.
- a new lubricating oil composition having characteristics suitable for lubrication according to various mechanisms incorporated in the device (for example, scuffing resistance, copper elution inhibitory effect, oxidation stability, and insulating properties) is required. ing.
- the present invention contains a thiadiazole-based compound and a boron-modified alkenylsuccinimide together with a base oil, and the content of the thiadiazole-based compound and the content of boron atoms and nitrogen atoms derived from the boron-modified alkenylsuccinimide is adjusted to a predetermined range.
- the present invention provides a lubricating oil composition, a speed reducer, and use of the lubricating oil composition according to the following aspects [1] to [14].
- a lubricating oil composition containing a base oil (A), a thiadiazole compound (B), and a boron-modified alkenylsuccinimide (C),
- the content of component (B) is less than 0.60% by mass based on the total amount of the lubricating oil composition
- the content ratio [B/N] of boron atoms and nitrogen atoms derived from the component (C) is 0.35 or more in mass ratio
- the content of boron atoms derived from the component (C) is 300 mass ppm or less based on the total amount of the lubricating oil composition.
- lubricating oil composition lubricating oil composition.
- a preferred embodiment of the lubricating oil composition of the present invention is a lubricating oil composition having properties suitable for various mechanisms incorporated in a device, and a more preferred aspect of the lubricating oil composition is scuffing resistance , copper elution inhibitory effect, oxidation stability, and insulating properties can be improved in a well-balanced manner. Therefore, these lubricating oil compositions can be suitably used for lubricating speed reducers and the like.
- the upper and lower limits can be combined arbitrarily.
- the numerical range is described as “preferably 30 to 100, more preferably 40 to 80”
- the range of "30 to 80” and the range of "40 to 100” are also described in this specification. included in the specified numerical range.
- the numerical range is described as “preferably 30 or more, more preferably 40 or more, and preferably 100 or less, more preferably 80 or less”
- “30 to 80” Ranges and ranges from “40 to 100” are also included in the numerical ranges described herein.
- “60 to 100” means a range of "60 or more and 100 or less”.
- kinematic viscosity and viscosity index mean values measured or calculated according to JIS K2283:2000.
- the content of boron atoms and phosphorus atoms means values measured according to JPI-5S-38-92.
- the content of nitrogen atoms means a value measured according to JIS K2609.
- the sulfur atom content means a value measured according to JIS K2541-6:2013.
- a lubricating oil composition of one aspect of the present invention comprises a base oil (A) (hereinafter also referred to as “component (A)”), a thiadiazole compound (hereinafter also referred to as “component (B)”), and a boron-modified alkenyl It contains succinimide (hereinafter also referred to as “component (C)").
- component (A) base oil
- component (B) thiadiazole compound
- component (C) boron-modified alkenyl It contains succinimide
- scuffing is more likely to occur in lubricating oil compositions with lower kinematic viscosities.
- a lubricating oil composition having a low kinematic viscosity exhibits a decrease in volume resistivity, which poses a problem in terms of insulating properties.
- the present inventors have found that scuffing resistance is improved by using a lubricating oil composition containing a thiadiazole compound, but at the same time, new problems such as an increase in the amount of copper elution and a decrease in oxidation stability occur. I also know it happens.
- a lubricating oil composition containing a boron-modified alkenyl succinimide together with a thiadiazole-based compound.
- a lubricating oil composition having well-balanced improved properties such as insulating properties can be obtained.
- a lubricating oil composition according to one aspect of the present invention was made based on this finding.
- the lubricating oil composition of one aspect of the present invention further includes one or more phosphorus-based compounds selected from phosphates and phosphites (D ) (hereinafter also referred to as “component (D)”).
- component (D) phosphorus-based compounds selected from phosphates and phosphites
- the lubricating oil composition of one aspect of the present invention may further contain various additives other than components (B) to (D), if necessary, as long as the effects of the present invention are not impaired.
- the total content of components (A), (B) and (C) is based on the total amount (100% by mass) of the lubricating oil composition, preferably 50% by mass above, more preferably 60% by mass or more, still more preferably 70% by mass or more, even more preferably 75% by mass or more, particularly preferably 80% by mass or more, and further 85% by mass or more, 90% by mass or more, or It may be 92% by mass or more, and 100% by mass or less, 99.5% by mass or less, 99.0% by mass or less, 98.5% by mass or less, 98.0% by mass or less, 97.5% by mass or less, It may be 97.0% by mass or less, 96.5% by mass or less, or 96.0% by mass or less.
- the total content of components (A), (B), (C) and (D) is based on the total amount (100% by mass) of the lubricating oil composition, preferably is more than 50% by mass, more preferably more than 60% by mass, more preferably more than 70% by mass, even more preferably more than 75% by mass, particularly preferably more than 80% by mass, and more than 83% by mass, 85% by mass %, 87% by mass, 90% by mass, 92% by mass, or 94% by mass or more, and 100% by mass or less, 99.9% by mass or less, 99.5% by mass or less, 99.5% by mass or less.
- the base oil which is the component (A) used in one aspect of the present invention, includes one or more selected from mineral oils and synthetic oils.
- Mineral oils include, for example, atmospheric residual oils obtained by atmospheric distillation of crude oils such as paraffinic crude oils, intermediate crude oils, and naphthenic crude oils; distillates obtained by vacuum distillation of these atmospheric residual oils. refined oil obtained by subjecting the distillate to one or more refining treatments such as solvent deasphalting, solvent extraction, hydrocracking, solvent dewaxing, catalytic dewaxing, and hydrorefining (hydrocracking); etc.
- Synthetic oils include, for example, ⁇ -olefin homopolymers, or ⁇ -olefin copolymers (for example, ⁇ -olefin copolymers having 8 to 14 carbon atoms such as ethylene- ⁇ -olefin copolymers).
- Synthetic oil (GTL) obtained by isomerizing the manufactured wax (GTL wax (Gas To Liquids WAX)) and the like can be mentioned.
- the component (A) used in one aspect of the present invention preferably contains one or more selected from mineral oils classified into Group II and Group III of the API (American Petroleum Institute) base oil category, and synthetic oils.
- the kinematic viscosity at 100° C. of component (A) used in one embodiment of the present invention is preferably 1.9 mm 2 /s or higher, more preferably 2.0 mm 2 /s or higher, and more preferably 2.1 mm 2 /s or higher.
- 2.2 mm 2 /s or more more preferably 2.3 mm 2 /s or more, 2.5 mm 2 /s or more, 2.7 mm 2 /s or more, 2.9 mm 2 /s or more; 0 mm 2 /s or more, 3.2 mm 2 /s or more, 3.4 mm 2 /s or more, or 3.6 mm 2 /s or more, preferably 5.0 mm 2 /s or less, more preferably 4 0.8 mm 2 /s or less, more preferably 4.6 mm 2 /s or less, still more preferably 4.5 mm 2 /s or less, even more preferably 4.3 mm 2 /s or less, particularly preferably 4.2 mm 2 /s 4.0 mm 2 /s or less, 3.8 mm 2 /s or less, 3.7 mm 2 /s or less, 3.6 mm 2 /s or less, 3.5 mm 2 /s or less, 3.4 mm 2 /s or less, 3.3 mm
- the viscosity index of component (A) used in one aspect of the present invention is preferably 70 or higher, more preferably 80 or higher, even more preferably 90 or higher, and even more preferably 100 or higher.
- the kinematic viscosity and viscosity index of the mixed oil are preferably within the above ranges. Therefore, a low-viscosity base oil and a high-viscosity base oil may be used together to prepare the mixed oil so that the kinematic viscosity and the viscosity index are within the above ranges.
- the content of component (A) is preferably 45% by mass or more, more preferably 50% by mass or more, based on the total amount (100% by mass) of the lubricating oil composition. , More preferably 55% by mass or more, still more preferably 60% by mass or more, even more preferably 65% by mass or more, particularly preferably 70% by mass or more, and further 75% by mass or more, 80% by mass or more, 85% by mass % or more, 90% by mass or more, or 92% by mass or more, preferably 99.99% by mass or less, more preferably 99.90% by mass or less, more preferably 99.50% by mass or less, and still more preferably is 99.00% by mass or less, more preferably 98.50% by mass or less, particularly preferably 98.00% by mass or less, and further 97.50% by mass or less, 97.00% by mass or less, 96.50 % by mass or less, or 96.00% by mass or less.
- the lubricating oil composition of one aspect of the present invention can be a lubricating oil composition with improved scuffing resistance by containing a thiadiazole-based compound as the component (B).
- the scuffing resistance-improving effect of component (B) can be more effectively exhibited even in a lubricating oil composition with a low viscosity.
- Component (B) may be used alone or in combination of two or more. However, the component (B) also causes an increase in copper elution and a decrease in oxidation stability.
- the content of component (B) is limited to less than 0.60% by mass based on the total amount (100% by mass) of the lubricating oil composition. That is, a lubricating oil composition having a component (B) content of 0.60% by mass or more tends to cause an increase in copper elution and a decrease in oxidation stability.
- the content of the component (B) is the total amount of the lubricating oil composition ( 100% by mass), it is less than 0.60% by mass, preferably 0.57% by mass or less, more preferably 0.55% by mass or less, more preferably 0.52% by mass or less, more preferably 0.52% by mass or less.
- the content of the component (B) is the total amount of the lubricating oil composition (100 mass %) basis, preferably 0.01% by mass or more, more preferably 0.05% by mass or more, more preferably 0.07% by mass or more, more preferably 0.10% by mass or more, still more preferably 0.12% by mass % by mass or more, more preferably 0.15% by mass or more, still more preferably 0.17% by mass or more, even more preferably 0.20% by mass or more, particularly preferably 0.22% by mass or more, and 0 0.23% by mass or more, 0.24% by mass or more, 0.25% by mass or more, 0.26% by mass or more, 0.27% by mass or more, or 0.28% by mass or more.
- the content of component (B) in terms of sulfur atoms is based on the total amount (100% by mass) of the lubricating oil composition, lubrication with further improved scuffing resistance
- an oil composition preferably 30 mass ppm or more, more preferably 50 mass ppm or more, more preferably 100 mass ppm or more, more preferably 150 mass ppm or more, still more preferably 200 mass ppm or more, still more preferably 250 mass ppm or more, more preferably 300 mass ppm or more, still more preferably 400 mass ppm or more, particularly preferably 500 mass ppm or more, further 600 mass ppm or more, 650 mass ppm or more, 700 mass ppm or more, 750 mass ppm or more It may be mass ppm or more, 800 mass ppm or more, 850 mass ppm or more, 900 mass ppm or more, 950 mass ppm or more, or 1000 mass
- a product preferably 2500 mass ppm or less, more preferably 2000 mass ppm or less, more preferably 1900 mass ppm or less, more preferably 1800 mass ppm or less, still more preferably 1700 mass ppm or less, still more preferably 1600 mass ppm ppm or less, more preferably 1500 mass ppm or less, even more preferably 1400 mass ppm or less, particularly preferably 1300 mass ppm or less, further 1250 mass ppm or less, 1200 mass ppm or less, 1150 mass ppm or less, 1100 mass ppm or less, or 1050 mass ppm or less.
- the content of component (B) in terms of nitrogen atoms is based on the total amount (100% by mass) of the lubricating oil composition, lubrication with further improved scuffing resistance
- an oil composition preferably 10 mass ppm or more, more preferably 30 mass ppm or more, more preferably 50 mass ppm or more, more preferably 60 mass ppm or more, still more preferably 70 mass ppm or more, still more preferably 80 mass ppm or more, more preferably 90 mass ppm or more, even more preferably 100 mass ppm or more, particularly preferably 120 mass ppm or more, further 130 mass ppm or more, 140 mass ppm or more, 150 mass ppm or more, 160 It may be mass ppm or more, 170 mass ppm or more, 180 mass ppm or more, or 190 mass ppm or more, and from the viewpoint of a lubricating oil composition with good copper el
- the thiadiazole-based compound that is the component (B) used in one embodiment of the present invention may be any compound having a thiadiazole ring. It preferably contains a compound represented by any one of (b-1) to (b-4), and more preferably contains at least a compound represented by the following general formula (b-1). In addition, the component (B) may be used alone or in combination of two or more.
- R 1 and R 2 are each independently a hydrocarbon group.
- m and n are each independently an integer of 1 to 10, but from the viewpoint of obtaining a lubricating oil composition with further improved scuffing resistance, preferably an integer of 1 to 6, more preferably 1 to 4 is an integer of , more preferably an integer of 2 to 3, and even more preferably 2.
- the hydrocarbon groups that can be selected as R 1 and R 2 include, for example, methyl group, ethyl group, propyl group (n-propyl group, isopropyl group), butyl group (n-butyl group, s-butyl group, t-butyl group, isobutyl group), pentyl group, hexyl group, heptyl group, octyl group, 2-ethylhexyl group, nonyl group, 1,1-dimethylheptyl group, decyl group, undecyl group, dodecyl group, tridecyl group, tetradecyl linear or branched alkyl groups such as pentadecyl, hexadecyl, heptadecyl and octadecyl groups; ethenyl, propenyl, butenyl, pentenyl, hexenyl, hepten
- the number of carbon atoms in the hydrocarbon group that can be selected as R 1 and R 2 is preferably 1 or more, more preferably 2 or more, and still more preferably 3 or more, more preferably 5 or more, and may be 7 or more, 8 or more, or 9 or more, preferably 30 or less, more preferably 24 or less, more preferably 20 or less, more preferably 18 Below, more preferably 16 or less, still more preferably 14 or less, still more preferably 12 or less, and may be 11 or less, or 10 or less.
- R 1 and R 2 are each independently preferably an alkyl group from the viewpoint of obtaining a lubricating oil composition with further improved scuffing resistance, and together with scuffing resistance, copper corrosion prevention from the viewpoint of obtaining a lubricating oil composition capable of effectively suppressing the elution of copper by improving the branched-chain alkyl group, more preferably a branched-chain alkyl group having 5 or more carbon atoms.
- the number of carbon atoms in the branched alkyl group is preferably 5 or more, more preferably 7 or more, still more preferably 8 or more, still more preferably 9 or more, and preferably 30 or less. It is preferably 24 or less, more preferably 20 or less, more preferably 18 or less, still more preferably 16 or less, even more preferably 14 or less, still more preferably 12 or less, and may be 11 or less, or 10 or less.
- the total content of the compounds is based on the total amount (100% by mass) of component (B) contained in the lubricating oil composition, preferably 60 to 100% by mass, more preferably 70 to 100% by mass, still more preferably 80 ⁇ 100% by mass, more preferably 90 to 100% by mass, particularly preferably 95 to 100% by mass.
- the content of the compound represented by the general formula (b-1) is the total amount of the component (B) contained in the lubricating oil composition (100 %), preferably 50 to 100% by mass, more preferably 60 to 100% by mass, still more preferably 70 to 100% by mass, even more preferably 80 to 100% by mass, particularly preferably 90 to 100% by mass is.
- the content of the compound represented by the following general formula (bx) is the total amount of the component (B) contained in the lubricating oil composition (100 mass% ) basis, preferably less than 10% by mass, more preferably less than 8% by mass, even more preferably less than 5% by mass, even more preferably less than 3% by mass, and particularly preferably less than 1% by mass.
- R a is a hydrogen atom or a methyl group
- R b is an alkyl group having 1 to 4 carbon atoms.
- p is 0 or 1;
- the component (B) has a branched chain alkyl group from the viewpoint of further improving the scuffing resistance and providing a lubricating oil composition having a good effect of suppressing copper elution. It preferably contains a thiadiazole compound (B1) (hereinafter also referred to as "component (B1)").
- component (B1) thiadiazole compound
- the content of component (B1) is preferably 50 to 100% by mass, more preferably 60 to 100% by mass, based on the total amount (100% by mass) of component (B) contained in the lubricating oil composition. %, more preferably 70 to 100% by mass, still more preferably 80 to 100% by mass, even more preferably 90 to 100% by mass, particularly preferably 95 to 100% by mass.
- the number of carbon atoms in the branched alkyl group of the component (B1) is preferably 5 or more, more preferably 7, from the viewpoint of improving scuffing resistance and providing a lubricating oil composition having a good effect of suppressing copper elution. More preferably 8 or more, still more preferably 9 or more, preferably 30 or less, more preferably 24 or less, more preferably 20 or less, more preferably 18 or less, still more preferably 16 or less, still more preferably is 14 or less, more preferably 12 or less, and may be 11 or less, or 10 or less.
- the component (B1) is represented by any one of the general formulas (b-1) to (b-4).
- R 1 and R 2 in each formula are each independently a branched alkyl group, preferably a compound represented by the general formula (b-1), wherein R 1 and R 2 in the formula More preferred are compounds in which each R 2 is independently a branched alkyl group.
- the preferred range of the number of carbon atoms in the branched-chain alkyl group is as described above.
- the lubricating oil composition of one aspect of the present invention may contain a sulfurized olefin within a range that does not impair the effects of the present invention.
- a sulfurized olefin within a range that does not impair the effects of the present invention.
- it is preferable that the content of the sulfide olefin is as small as possible.
- the content of the sulfurized olefin is preferably less than 0.20% by mass, more preferably less than 0.20% by mass, based on the total amount (100% by mass) of the lubricating oil composition less than 0.18% by mass, more preferably less than 0.15% by mass, even more preferably less than 0.12% by mass, even more preferably less than 0.10% by mass, particularly preferably less than 0.07% by mass; Furthermore, it may be less than 0.05% by weight, less than 0.04% by weight, less than 0.03% by weight, less than 0.02% by weight, less than 0.01% by weight, or less than 0.001% by weight.
- sulfurized olefins include compounds represented by the following general formula (i).
- R-(S) q -R' (i) In the above formula (i), R is an alkenyl group having 2 to 20 carbon atoms, R' is an alkenyl group having 2 to 20 carbon atoms or an alkyl group having 2 to 20 carbon atoms, and q is 1 to 10 is an integer of
- a lubricating oil composition of one aspect of the present invention contains a boron-modified alkenylsuccinimide as component (C).
- component (B) contributes to the improvement of scuffing resistance, but at the same time causes an increase in copper elution and a decrease in oxidation stability. Therefore, in the lubricating oil composition of one aspect of the present invention, by containing the component (C) together with the component (B), excellent scuffing resistance is exhibited, and the effect of suppressing copper elution and oxidation stability are excellent. It is a lubricating oil composition.
- component (C) may be used independently and may use 2 or more types together.
- component (C) satisfies the following requirements (I) and (II).
- a lubricating oil composition having a content ratio [B/N] of less than 0.35 is inferior in copper elution inhibitory effect and oxidation stability.
- a lubricating oil composition having a boron atom content of more than 300 ppm by mass derived from component (C) is inferior in scuffing resistance and insulating properties.
- the content ratio of boron atoms and nitrogen atoms derived from the component (C) [B/N] is a mass ratio of 0.35 or more, preferably 0.40 or more, more preferably 0.45 or more, more preferably 0.50 or more, more preferably 0.50 or more, as in the above requirement (I) is 0.55 or more, more preferably 0.60 or more, more preferably 0.65 or more, still more preferably 0.70 or more, even more preferably 0.75 or more, particularly preferably 0.80 or more, and further , 0.85 or more, or 0.90 or more.
- the content ratio [B/N] of boron atoms and nitrogen atoms derived from the component (C) is 2.0 or less, 1.9 or less, 1.8 or less, 1.7 or less, 1 .6 or less, 1.5 or less, 1.4 or less, or 1.3 or less.
- the content of boron atoms derived from the component (C) is the lubricating oil composition Based on the total amount (100% by mass) of the product, it is 300 mass ppm or less, preferably 280 mass ppm or less, more preferably 250 mass ppm or less, more preferably 220 mass ppm or less, more preferably 200 mass ppm or less, and further Preferably 180 mass ppm or less, more preferably 160 mass ppm or less, still more preferably 150 mass ppm or less, even more preferably 140 mass ppm or less, particularly preferably 130 mass ppm or less, and further 125 mass ppm or less, 120 It may be mass ppm or less, 115 mass ppm or less, or 110 mass ppm or less.
- the content of boron atoms derived from the component (C) is based on the total amount (100% by mass) of the lubricating oil composition.
- preferably 3.0 mass ppm or more more preferably 5.0 mass ppm or more, more preferably 7.0 mass ppm or more, more preferably 10.0 mass ppm or more, still more preferably 12.0 mass ppm or more, More preferably 15.0 mass ppm or more, still more preferably 17.0 mass ppm or more, still more preferably 20.0 mass ppm or more, particularly preferably 22.0 mass ppm or more, and further preferably 25.0 mass ppm Above, 30.0 mass ppm or more, 35.0 mass ppm or more, 40.0 mass ppm or more, 45.0 mass ppm or more, 50.0 mass ppm or more, 55.0 mass ppm or more, 60.0 mass ppm or more , 65.0 mass ppm or more, 70.0 mass ppm or more, or 75.0 mass ppm or more.
- the scuffing resistance and insulation properties are better maintained, and from the viewpoint of a lubricating oil composition having an excellent copper elution inhibitory effect and oxidation stability, the component (C)
- the content of nitrogen atoms derived is preferably 5.0 mass ppm or more, more preferably 7.0 mass ppm or more, more preferably 9.0 mass ppm, based on the total amount (100 mass%) of the lubricating oil composition ppm or more, more preferably 10.0 mass ppm or more, still more preferably 12.0 mass ppm or more, still more preferably 15.0 mass ppm or more, still more preferably 17.0 mass ppm or more, still more preferably 20.0 mass ppm or more Mass ppm or more, particularly preferably 22.0 mass ppm or more, further 25.0 mass ppm or more, 30.0 mass ppm or more, 35.0 mass ppm or more, 40.0 mass ppm or more, 45.0 mass
- Component (C) used in one aspect of the present invention includes one or more selected from boron-modified alkenylsuccinic acid bisimide (C1) and boron-modified alkenylsuccinic acid monoimide (C2).
- the component (C) used in one aspect of the present invention is a boron-modified alkenylsuccinic acid bisimide ( C1) is preferably included.
- the content of component (C1) is preferably 20 to 100% by mass, more preferably 40 to 100% by mass, based on the total amount (100% by mass) of component (C) contained in the lubricating oil composition. %, more preferably 50 to 100% by mass, still more preferably 60 to 100% by mass, still more preferably 70 to 100% by mass, even more preferably 80 to 100% by mass, particularly preferably 90 to 100% by mass.
- component (C1) examples include boron-modified compounds of the compounds represented by the general formula (c-1). Further, the component (C2) includes a boron-modified compound of the compound represented by the general formula (c-2).
- R a1 , R a2 and R a3 are each independently an alkenyl group having a weight average molecular weight (Mw) of 500 to 3000 (preferably 900 to 2500). is.
- alkenyl groups that can be selected as R a1 , R a2 and R a3 include polybutenyl groups, polyisobutenyl groups, ethylene-propylene copolymers, etc. Among these, polybutenyl groups and polyisobutenyl groups are preferred.
- R b1 , R b2 and R b3 are each independently an alkylene group having 2 to 5 carbon atoms.
- z1 is an integer of 0-10, preferably an integer of 1-4, more preferably 2 or 3.
- z2 is an integer of 1-10, preferably an integer of 2-5, more preferably 3 or 4;
- the lubricating oil composition of one aspect of the present invention may contain an ashless dispersant other than component (C) within a range that does not impair the effects of the present invention.
- ashless dispersants other than component (C) include non-boron-modified alkenyl succinimides and modified alkenyl succinimides other than boron.
- non-boron-modified alkenylsuccinimide include alkenylsuccinic acid bisimide represented by the general formula (c-1) and alkenylsuccinic acid monoimide represented by the general formula (c-2). be done.
- Modified products of alkenylsuccinimide other than boron include, for example, compounds represented by the general formula (c-1) or (c-2), alcohols, aldehydes, ketones, alkylphenols, cyclic carbonates, epoxy compounds, and a reaction product obtained by reacting with one or more selected from organic acids and the like.
- the content of the ashless dispersant other than the component (C) is 10.0% by mass or less based on the total amount (100% by mass) of the lubricating oil composition; 0% by mass or less, 6.0% by mass or less, 5.0% by mass or less, 4.0% by mass or less, 3.0% by mass or less, 2.0% by mass or less, 1.0% by mass or less, 0.7 % by mass or less, 0.5% by mass or less, 0.3% by mass or less, 0.2% by mass or less, or 0.1% by mass or less, or 0% by mass or more, 0.001% by mass or more, Alternatively, it may be 0.01% by mass or more.
- the lubricating oil composition of one aspect of the present invention further includes one or more phosphorus-based compounds selected from phosphates and phosphites (D ) is preferably contained.
- the phosphate ester used as the component (D) in one aspect of the present invention includes, for example, a neutral phosphate ester represented by the following general formula (d-1), and the following general formula (d-2) or (d -3) and acidic phosphate esters.
- examples of the phosphite used as the component (D) in one aspect of the present invention include acidic phosphites represented by the following general formula (d-4) or (d-5).
- each R A is independently an alkyl group having 1 to 30 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, or an alkyl group having 1 to 6 carbon atoms and optionally substituted with an alkyl group having 6 to 18 carbon atoms.
- a plurality of R A may be the same or different from each other.
- alkyl group examples include methyl group, ethyl group, propyl group (n-propyl group, isopropyl group), butyl group (n-butyl group, s-butyl group, t-butyl group , isobutyl group), pentyl group, hexyl group, 2-ethylhexyl group, heptyl group, octyl group, nonyl group, decyl group, undecyl group, dodecyl group, tridecyl, tetradecyl group, hexadecyl group, octadecyl group and the like.
- alkyl groups may be straight-chain alkyl groups or branched-chain alkyl groups.
- the number of carbon atoms in the alkyl group is 1 to 30, preferably 3 to 20, more preferably 5 to 16, even more preferably 6 to 14, still more preferably 8 to 12.
- alkenyl group examples include ethenyl, propenyl, butenyl, pentenyl, hexenyl, heptenyl, octenyl, nonenyl, decenyl, undecenyl, dodecenyl, tridecenyl group, tetradecenyl group, pentadecenyl group, hexadecenyl group, octadecenyl group and the like.
- These alkenyl groups may be straight-chain alkenyl groups or branched-chain alkenyl groups.
- the alkenyl group has 2 to 20 carbon atoms, preferably 3 to 16 carbon atoms, more preferably 6 to 12 carbon atoms.
- Examples of the aryl group that can be selected as RA include a phenyl group, a naphthyl group, an anthryl group, a phenanthryl group, a biphenyl group, a terphenyl group, and a phenylnaphthyl group, with a phenyl group being preferred.
- the "alkyl group having 1 to 6 carbon atoms" which can be substituted on these aryl groups includes alkyl groups having 1 to 6 carbon atoms among the alkyl groups described above.
- R A01 is a hydrogen atom or a monovalent organic group having 1 to 20 carbon atoms.
- RA02 is a divalent organic group.
- x is an integer of 1 or more, preferably an integer of 1 to 10, more preferably an integer of 1 to 5, still more preferably an integer of 1 to 3, even more preferably 1 or 2, particularly preferably 1. * indicates the binding position.
- the alkyl group that can be selected as RA01 may be a straight-chain alkyl group or a branched-chain alkyl group, but is preferably a straight-chain alkyl group.
- the alkyl group has 1 to 20 carbon atoms, preferably 2 to 18 carbon atoms, more preferably 4 to 16 carbon atoms, still more preferably 6 to 12 carbon atoms, and even more preferably 8 to 10 carbon atoms.
- Examples of the divalent organic group that can be selected as R A02 include an alkylene group having 1 to 20 carbon atoms, a cycloalkylene group, an alkenylene group having 1 to 20 carbon atoms, a cycloalkenylene group, an arylene group, and the like.
- an alkylene group having 1 to 20 carbon atoms, or at least one —CH 2 — structure of an alkylene group having 1 to 20 carbon atoms (preferably 2 to 12, more preferably 2 to 8, and even more preferably 2 to 4) Is preferably a group substituted with -O-, -S-, -COO-, -OCO-, -CSO-, -OCS-, -CH CH- or -C ⁇ C-, and the number of carbon atoms 2 to 20 alkylene groups are more preferred.
- the alkylene group that can be selected as R A02 may be a linear alkylene group or a branched alkylene group, but is preferably a linear alkylene group.
- the number of carbon atoms in the alkylene group is 1 to 20, preferably 1 to 12, more preferably 1 to 8, still more preferably 1 to 4, even more preferably 1, 2 or 4, particularly preferably 2.
- the component (D) is a sulfur atom-containing phosphate and a sulfur atom-containing phosphite. It is preferable to contain one or more selected sulfur-phosphorus compounds (D1).
- the content of the component (D1) is the component (D) contained in the lubricating oil composition Based on the total amount (100% by mass), preferably 60 to 100% by mass, more preferably 70 to 100% by mass, more preferably 80 to 100% by mass, still more preferably 90 to 100% by mass, still more preferably 95 to 100% by mass, particularly preferably 98 to 100% by mass.
- sulfur atom-containing phosphates and sulfur atom-containing phosphites examples include sulfur atom-containing phosphates and sulfur atom-containing phosphites having a group represented by the formula (ii).
- the component (D1) used in one embodiment of the present invention is a sulfur atom-containing phosphite having a group represented by the formula (ii). More preferably, one or more selected from a compound (D11) represented by the following general formula (d-11) and a compound (D12) represented by the following general formula (d-12) is more preferred.
- R A11 , R A21 and R A22 are each independently a hydrogen atom or an alkyl group having 1 to 20 carbon atoms.
- the alkyl group may be a straight-chain alkyl group or a branched-chain alkyl group, but is preferably a straight-chain alkyl group.
- the alkyl group has 1 to 20 carbon atoms, preferably 2 to 18 carbon atoms, more preferably 4 to 16 carbon atoms, still more preferably 6 to 12 carbon atoms, and even more preferably 8 to 10 carbon atoms.
- a1, a2 and a3 are each independently an integer of 1 to 20, preferably an integer of 1 to 12, more preferably an integer of 1 to 8, still more preferably an integer of 1 to 4, and more Preferably 1, 2 or 4, particularly preferably 2.
- the component (D) is a compound (D11) represented by the general formula (d-11) ) and the compound (D12) represented by the general formula (d-12).
- the content ratio of compound (D11) and compound (D12) [(D11)/(D12)] is preferably 1/20 to 20/1, more preferably 1/16 to 10/1, more preferably 1/14 to 5/1, more preferably 1/12 to 2/1, even more preferably 1/11 to 1/1, particularly preferably 1/10 to 1 /2.
- the acidic phosphate and acidic phosphite used as the component (D) in one aspect of the present invention may be in the form of an amine salt.
- the amine that forms the amine salt is preferably a compound represented by the following general formula (di).
- the said amine may be used individually and may use 2 or more types together.
- r is an integer of 1 to 3, preferably 1.
- Each R x is independently an alkyl group having 6 to 18 carbon atoms, an alkenyl group having 6 to 18 carbon atoms, an aryl group having 6 to 18 carbon atoms, or a hydroxyalkyl group having 6 to 18 carbon atoms.
- the plurality of R x may be the same or different from each other.
- the alkyl group having 6 to 18 carbon atoms, the alkenyl group having 6 to 18 carbon atoms and the aryl group having 6 to 18 carbon atoms which can be selected as R x include the above R 11 to R 13 and R 21 to R 23 Among the groups exemplified as alkyl groups, alkenyl groups, and aryl groups that can be selected as , groups having the number of carbon atoms within the above range can be mentioned.
- Examples of the hydroxyalkyl group having 6 to 18 carbon atoms include a group in which the hydrogen atom of an alkyl group having 6 to 18 carbon atoms is substituted with a hydroxy group. Specifically, hydroxyhexyl group and hydroxyoctyl group. , hydroxydodecyl group, hydroxytridecyl group and the like.
- the content of the component (D) is the total amount (100% by mass) of the lubricating oil composition Based on, preferably 0.01% by mass or more, more preferably 0.05% by mass or more, still more preferably 0.07% by mass or more, even more preferably 0.10% by mass or more, particularly preferably 0.15% by mass % or more, and further 0.17% by mass or more, 0.20% by mass or more, 0.23% by mass or more, 0.25% by mass or more, 0.27% by mass or more, or 0.30% by mass or more Also preferably 3.0% by mass or less, more preferably 2.5% by mass or less, still more preferably 2.0% by mass or less, even more preferably 1.5% by mass or less, and particularly preferably 1.5% by mass or less.
- the content of component (D) in terms of phosphorus atoms is the total amount of the lubricating oil composition (100% by mass), preferably 30 mass ppm or more, more preferably 50 mass ppm or more, more preferably 70 mass ppm or more, more preferably 100 mass ppm or more, still more preferably 120 mass ppm or more, still more preferably 150 mass ppm or more, more preferably 180 mass ppm or more, still more preferably 200 mass ppm or more, still more preferably 220 mass ppm or more, still more preferably 250 mass ppm or more, particularly preferably 270 mass ppm or more, Further, it is preferably 800 mass ppm or less, more preferably 700 mass ppm or less, still more preferably 600 mass ppm or less, still more preferably 500 mass ppm or less, particularly preferably 450 mass ppm or less
- the content of component (D) in terms of sulfur atoms is the total amount of the lubricating oil composition (100% by mass), preferably 50 mass ppm or more, more preferably 70 mass ppm or more, more preferably 100 mass ppm or more, more preferably 120 mass ppm or more, still more preferably 150 mass ppm or more, still more preferably 180 mass ppm or more, more preferably 200 mass ppm or more, still more preferably 220 mass ppm or more, still more preferably 250 mass ppm or more, still more preferably 270 mass ppm or more, particularly preferably 300 mass ppm or more, Further, it is preferably 800 mass ppm or less, more preferably 700 mass ppm or less, still more preferably 600 mass ppm or less, still more preferably 500 mass ppm or less, particularly preferably 450 mass ppm or less,
- the content of the sulfur atom-free acidic phosphate in terms of phosphorus atoms is less than 100 ppm by mass based on the total amount (100% by mass) of the lubricating oil composition. , less than 50 mass ppm, less than 10 mass ppm, less than 8 mass ppm, less than 5 mass ppm, less than 3 mass ppm, or less than 1 mass ppm.
- the content of the sulfur atom-free neutral phosphate in terms of phosphorus atoms is 50 based on the total amount (100% by mass) of the lubricating oil composition. It may be less than ppm by weight, less than 10 ppm by weight, less than 8 ppm by weight, less than 5 ppm by weight, less than 3 ppm by weight, or less than 1 ppm by weight.
- the lubricating oil composition of one aspect of the present invention may optionally contain various additives other than components (B) to (D) within a range that does not impair the effects of the present invention.
- various additives include pour point depressants, antioxidants, metallic detergents, metal deactivators, friction modifiers, rust inhibitors, antifoaming agents and the like.
- Each of these lubricating oil additives may be used alone, or two or more of them may be used in combination.
- each of these lubricating oil additives can be adjusted as appropriate within a range that does not impair the effects of the present invention. It is usually 0.001 to 15% by mass, preferably 0.005 to 10% by mass, more preferably 0.01 to 5% by mass, independently for each agent.
- the lubricating oil composition of one aspect of the present invention may further contain a pour point depressant.
- the pour point depressants may be used alone or in combination of two or more.
- Pour point depressants used in one embodiment of the present invention include, for example, ethylene-vinyl acetate copolymers, condensates of chlorinated paraffin and naphthalene, condensates of chlorinated paraffin and phenol, polymethacrylates, and polyalkylstyrenes. etc.
- the lubricating oil composition of one aspect of the present invention may further contain an antioxidant.
- An antioxidant may be used independently and may use 2 or more types together.
- Antioxidants used in one aspect of the present invention include, for example, alkylated diphenylamine, phenylnaphthylamine, alkylated phenylnaphthylamine, and other amine-based antioxidants; (2,6-di-t-butylphenol), isooctyl-3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate, n-octadecyl-3-(3,5-di-t-butyl-4 - phenolic antioxidants such as hydroxyphenyl)propionate;
- the antioxidant is a combination of an amine-based antioxidant and a phenol-based antioxidant.
- the lubricating oil composition of one aspect of the present invention may further contain a metallic detergent.
- Metal-based detergents may be used alone or in combination of two or more.
- Metallic detergents for use in one aspect of the present invention include metal salts such as metal sulfonates, metal salicylates, and metal phenates.
- the metal atom constituting the metal salt is preferably a metal atom selected from alkali metals and alkaline earth metals, more preferably sodium, calcium, magnesium, or barium, and still more preferably calcium.
- the metallic detergent preferably contains one or more selected from calcium sulfonate, calcium salicylate, and calcium phenate, more preferably calcium sulfonate.
- the content of calcium sulfonate is preferably 50 to 100% by mass, more preferably 60 to 100% by mass, and still more preferably 70% by mass, based on the total amount (100% by mass) of the metallic detergent contained in the lubricating oil composition. ⁇ 100% by mass, more preferably 80 to 100% by mass.
- the base number of the metallic detergent is preferably 0 to 600 mgKOH/g.
- the metallic detergent is preferably an overbased metallic detergent having a base value of 100 mgKOH/g or more.
- the base number of the overbased metallic detergent is 100 mgKOH/g or more, preferably 150 to 500 mgKOH/g, more preferably 200 to 450 mgKOH/g.
- base number refers to 7. of JIS K2501:2003 “Petroleum products and lubricating oils—neutralization value test method”. Means the base number by the perchloric acid method measured in accordance with.
- the lubricating oil composition of one aspect of the present invention may further contain a metal deactivator.
- the metal deactivators may be used alone or in combination of two or more. Examples of metal deactivators used in one embodiment of the present invention include benzotriazole-based compounds, tolyltriazole-based compounds, imidazole-based compounds, pyrimidine-based compounds, and the like.
- the lubricating oil composition of one aspect of the present invention may further contain a friction modifier.
- the friction modifier may be used alone or in combination of two or more.
- friction modifiers used in one aspect of the present invention include molybdenum-based friction modifiers such as molybdenum dithiocarbamate (MoDTC), molybdenum dithiophosphate (MoDTP), and amine salts of molybdic acid; alkyl groups having 6 to 30 carbon atoms; or ashless friction modifiers having at least one alkenyl group in the molecule, such as aliphatic amines, fatty acid esters, fatty acid amides, fatty acids, fatty alcohols, and aliphatic ethers; mentioned.
- MoDTC molybdenum dithiocarbamate
- MoDTP molybdenum dithiophosphate
- amine salts of molybdic acid alkyl groups having 6 to 30 carbon atoms
- ashless friction modifiers having at least one
- the lubricating oil composition of one aspect of the present invention may further contain a rust inhibitor.
- the rust inhibitor may be used alone or in combination of two or more.
- Examples of the rust inhibitor used in one aspect of the present invention include fatty acids, alkenyl succinic acid half esters, fatty acid soaps, alkylsulfonates, polyhydric alcohol fatty acid esters, fatty acid amines, paraffin oxide, alkylpolyoxyethylene ethers, and the like. mentioned.
- the lubricating oil composition of one aspect of the present invention may further contain an antifoaming agent.
- Antifoaming agents may be used alone or in combination of two or more.
- Antifoaming agents used in one aspect of the present invention include, for example, silicone oils, fluorosilicone oils, fluoroalkyl ethers, and the like.
- the method for producing the lubricating oil composition of one aspect of the present invention is not particularly limited, but from the viewpoint of productivity, component (A), components (B) and (C), and, if necessary, It is preferable to have a step of blending the above various additives other than the component (D) and the components (B) to (D). Preferred compounds and blending amounts of components (A) to (D) and various additives are as described above.
- the kinematic viscosity at 100° C. of the lubricating oil composition of one embodiment of the present invention is preferably 2. from the viewpoint of further improving the insulating properties, increasing the flash point, and making the lubricating oil composition excellent in handleability.
- the viscosity index of the lubricating oil composition of one embodiment of the present invention is preferably 80 or higher, more preferably 90 or higher, even more preferably 100 or higher, still more preferably 110 or higher, and particularly preferably 117 or higher.
- the stage of load when scuffing occurs is preferably 5 or more, more preferably 6. or more, more preferably 7 or more, and even more preferably 8 or more.
- the ISOT test in accordance with JIS K2514 was performed using copper pieces as a catalyst at a temperature of 150 ° C. for 72 hours, as described in the examples below.
- the copper elution amount of the oil composition is preferably less than 15 mass ppm, more preferably 14 mass ppm or less, still more preferably 13 mass ppm or less, even more preferably 12 mass ppm or less, and particularly preferably 11 mass ppm or less.
- the amount of copper elution means a value measured according to JPI-5S-38-92.
- the lubricating oil composition of one aspect of the present invention was subjected to an oxidation stability test according to CEC L-48-A-00 (B) at a temperature of 160 ° C. for 192 hours as described in the examples below.
- the 100 ° C kinematic viscosity increase rate before and after the test is preferably less than 12%, more preferably 10% or less, more preferably 9% or less, still more preferably 8% or less, still more preferably 7% or less, even more preferably is 6% or less, particularly preferably 5% or less.
- the 100° C. kinematic viscosity increase rate is a value calculated from the following formula, and the kinematic viscosity is a value measured according to JIS K2283:2000.
- ⁇ [100 ° C kinematic viscosity increase rate (%)] ([100 ° C kinematic viscosity of the lubricating oil composition after the test (mm 2 / s)] - [100 ° C kinematic viscosity of the lubricating oil composition before the test ( mm 2 /s)]) / [100 ° C kinematic viscosity of the lubricating oil composition before the test (mm 2 /s)] ⁇ 100
- the volume resistivity of the lubricating oil composition measured under the conditions described in Examples below in accordance with JIS C2101 is preferably 1.7 ⁇ 10 7 ⁇ . ⁇ m or more, more preferably 1.9 ⁇ 10 7 ⁇ m or more, more preferably 2.0 ⁇ 10 7 ⁇ m or more, still more preferably 2.2 ⁇ 10 7 ⁇ m or more, still more preferably 2 .3 ⁇ 10 7 ⁇ m or more, more preferably 2.5 ⁇ 10 7 ⁇ m or more, particularly preferably 2.7 ⁇ 10 7 ⁇ m or more, and usually 1.0 ⁇ 10 9 ⁇ m or less.
- the lubricating oil composition of one preferred embodiment of the present invention can improve properties such as scuffing resistance, copper elution inhibitory effect, oxidation stability, and insulating properties in a well-balanced manner.
- the lubricating oil composition of one preferred embodiment of the present invention is excellent in terms of cooling performance because it can maintain these characteristics well even when the viscosity is reduced.
- the lubricating oil composition of one embodiment of the present invention is incorporated in various devices such as engines, transmissions, reduction gears, compressors, hydraulic devices, torque converters, wet clutches, etc. , gear bearing mechanisms, oil pumps, hydraulic control mechanisms, and other mechanisms.
- the lubricating oil composition of one embodiment of the present invention is preferably used for lubricating a speed reducer.
- the present invention can also provide the following [1] and [2].
- [1] Contains a base oil (A), a thiadiazole compound (B), and a boron-modified alkenylsuccinimide (C), and the content of the component (B) is 0 based on the total amount of the lubricating oil composition less than 60% by mass, the content ratio [B/N] of boron atoms and nitrogen atoms derived from the component (C) is 0.35 or more in terms of mass ratio, and boron derived from the component (C) Atom content is 300 mass ppm or less based on the total amount of the lubricating oil composition, A speed reducer using a lubricating oil composition.
- [2] Contains a base oil (A), a thiadiazole compound (B), and a boron-modified alkenylsuccinimide (C), and the content of the component (B) is 0 based on the total amount of the lubricating oil composition less than 60% by mass, the content ratio [B/N] of boron atoms and nitrogen atoms derived from the component (C) is 0.35 or more in terms of mass ratio, and boron derived from the component (C) Atom content is 300 mass ppm or less based on the total amount of the lubricating oil composition, Use of the lubricating oil composition, wherein the lubricating oil composition is applied to lubricate a speed reducer.
- Preferred aspects of the lubricating oil compositions described in [1] and [2] above are as described above.
- the present invention will be described in more detail with reference to examples, but the present invention is not limited by these examples.
- the measuring method of various physical properties is as follows.
- Examples 1-13, Comparative Examples 1-7 The types of base oils and various additives shown in Table 1 were added and mixed in the amounts shown in Table 1 to prepare lubricating oil compositions.
- the details of each component used in the preparation of the lubricating oil composition are as follows.
- the content of molybdenum atoms was less than 2 ppm by mass in all lubricating oil compositions.
- ⁇ [100 ° C kinematic viscosity increase rate (%)] ([100 ° C kinematic viscosity of the lubricating oil composition after the test (mm 2 / s)] - [100 ° C kinematic viscosity of the lubricating oil composition before the test ( mm 2 /s)]) / [100 ° C kinematic viscosity of the lubricating oil composition before the test (mm 2 /s)] ⁇ 100
- the lubricating oil compositions of Examples 1 to 13 had well-balanced and excellent scuffing resistance, copper elution inhibitory effect, oxidation stability, and insulating properties.
- the lubricating oil composition of Comparative Example 1 was inferior in oxidation stability
- the lubricating oil compositions of Comparative Examples 2-3 and 6-7 were inferior in copper elution inhibitory effect.
- the lubricating oil compositions of Comparative Examples 4 and 5 were inferior in scuffing resistance and insulation.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
L'invention concerne une composition lubrifiante qui contient une huile de base (A), un composé thiadiazole (B) et un alcénylsuccinimide modifié au bore (C). La teneur en composant (B) est inférieure à 0,60 % en masse sur la base de la quantité totale de la composition lubrifiante, le rapport de teneur [B/N] d'atomes de bore et d'atomes d'azote dérivés du composant (C) est supérieur ou égal à 0,35 par rapport en masse, et la teneur en atomes de bore dérivés du composant (C) est inférieure ou égale à 300 ppm sur la base de la quantité totale de la composition lubrifiante.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202280039684.9A CN117413041A (zh) | 2021-07-05 | 2022-06-29 | 润滑油组合物 |
| EP22837550.7A EP4368688A1 (fr) | 2021-07-05 | 2022-06-29 | Composition lubrifiante |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021-111291 | 2021-07-05 | ||
| JP2021111291A JP2023008046A (ja) | 2021-07-05 | 2021-07-05 | 潤滑油組成物 |
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| Publication Number | Publication Date |
|---|---|
| WO2023282134A1 true WO2023282134A1 (fr) | 2023-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2022/025869 WO2023282134A1 (fr) | 2021-07-05 | 2022-06-29 | Composition lubrifiante |
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| Country | Link |
|---|---|
| EP (1) | EP4368688A1 (fr) |
| JP (1) | JP2023008046A (fr) |
| CN (1) | CN117413041A (fr) |
| WO (1) | WO2023282134A1 (fr) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012193255A (ja) | 2011-03-16 | 2012-10-11 | Jx Nippon Oil & Energy Corp | ギヤ油組成物 |
| JP2014159496A (ja) * | 2013-02-19 | 2014-09-04 | Jx Nippon Oil & Energy Corp | 変速機用潤滑油組成物 |
| JP2019038961A (ja) * | 2017-08-28 | 2019-03-14 | Ｊｘｔｇエネルギー株式会社 | 手動変速機用潤滑油組成物 |
| WO2019177125A1 (fr) * | 2018-03-14 | 2019-09-19 | 出光興産株式会社 | Composition d'huile lubrifiante |
| JP2020090558A (ja) * | 2018-12-03 | 2020-06-11 | Ｅｍｇルブリカンツ合同会社 | 潤滑油組成物 |
-
2021
- 2021-07-05 JP JP2021111291A patent/JP2023008046A/ja active Pending
-
2022
- 2022-06-29 CN CN202280039684.9A patent/CN117413041A/zh active Pending
- 2022-06-29 EP EP22837550.7A patent/EP4368688A1/fr active Pending
- 2022-06-29 WO PCT/JP2022/025869 patent/WO2023282134A1/fr active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012193255A (ja) | 2011-03-16 | 2012-10-11 | Jx Nippon Oil & Energy Corp | ギヤ油組成物 |
| JP2014159496A (ja) * | 2013-02-19 | 2014-09-04 | Jx Nippon Oil & Energy Corp | 変速機用潤滑油組成物 |
| JP2019038961A (ja) * | 2017-08-28 | 2019-03-14 | Ｊｘｔｇエネルギー株式会社 | 手動変速機用潤滑油組成物 |
| WO2019177125A1 (fr) * | 2018-03-14 | 2019-09-19 | 出光興産株式会社 | Composition d'huile lubrifiante |
| JP2020090558A (ja) * | 2018-12-03 | 2020-06-11 | Ｅｍｇルブリカンツ合同会社 | 潤滑油組成物 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4368688A1 (fr) | 2024-05-15 |
| CN117413041A (zh) | 2024-01-16 |
| JP2023008046A (ja) | 2023-01-19 |
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