JPWO2017073748A1 - Lubricating oil composition - Google Patents
Lubricating oil composition Download PDFInfo
- Publication number
- JPWO2017073748A1 JPWO2017073748A1 JP2017547901A JP2017547901A JPWO2017073748A1 JP WO2017073748 A1 JPWO2017073748 A1 JP WO2017073748A1 JP 2017547901 A JP2017547901 A JP 2017547901A JP 2017547901 A JP2017547901 A JP 2017547901A JP WO2017073748 A1 JPWO2017073748 A1 JP WO2017073748A1
- Authority
- JP
- Japan
- Prior art keywords
- mass
- lubricating oil
- less
- oil composition
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 79
- 239000000203 mixture Substances 0.000 title claims abstract description 74
- -1 acrylate compound Chemical class 0.000 claims abstract description 45
- 239000002199 base oil Substances 0.000 claims abstract description 32
- 150000001875 compounds Chemical class 0.000 claims abstract description 21
- 230000001050 lubricating effect Effects 0.000 claims abstract description 16
- 239000005077 polysulfide Substances 0.000 claims abstract description 15
- 229920001021 polysulfide Polymers 0.000 claims abstract description 15
- 150000008117 polysulfides Polymers 0.000 claims abstract description 15
- 239000003607 modifier Substances 0.000 claims description 16
- 229920000193 polymethacrylate Polymers 0.000 claims description 16
- 239000012208 gear oil Substances 0.000 claims description 6
- 150000003334 secondary amides Chemical class 0.000 claims description 4
- 125000001749 primary amide group Chemical group 0.000 claims 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims 1
- 125000000467 secondary amino group Chemical class [H]N([*:1])[*:2] 0.000 claims 1
- 239000003921 oil Substances 0.000 description 24
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 17
- 125000004432 carbon atom Chemical group C* 0.000 description 14
- 229910052717 sulfur Inorganic materials 0.000 description 13
- 239000011593 sulfur Substances 0.000 description 13
- 238000012360 testing method Methods 0.000 description 12
- 239000000654 additive Substances 0.000 description 11
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 10
- 239000003963 antioxidant agent Substances 0.000 description 10
- 229910052796 boron Inorganic materials 0.000 description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 8
- 125000003342 alkenyl group Chemical group 0.000 description 8
- 150000001412 amines Chemical group 0.000 description 8
- 239000002270 dispersing agent Substances 0.000 description 8
- 239000002480 mineral oil Substances 0.000 description 8
- 235000010446 mineral oil Nutrition 0.000 description 8
- 229910052698 phosphorus Inorganic materials 0.000 description 8
- 239000011574 phosphorus Substances 0.000 description 8
- 125000000217 alkyl group Chemical group 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 7
- 239000003599 detergent Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 230000003078 antioxidant effect Effects 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- 230000000996 additive effect Effects 0.000 description 5
- 239000002518 antifoaming agent Substances 0.000 description 5
- 239000010779 crude oil Substances 0.000 description 5
- 150000004678 hydrides Chemical class 0.000 description 5
- 238000007670 refining Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 125000002947 alkylene group Chemical group 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000004517 catalytic hydrocracking Methods 0.000 description 4
- 239000004927 clay Substances 0.000 description 4
- 238000004821 distillation Methods 0.000 description 4
- 150000002430 hydrocarbons Chemical group 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 229920013639 polyalphaolefin Polymers 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000004034 viscosity adjusting agent Substances 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 150000003973 alkyl amines Chemical class 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 239000003085 diluting agent Substances 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 150000003140 primary amides Chemical class 0.000 description 3
- 150000003141 primary amines Chemical class 0.000 description 3
- 150000003335 secondary amines Chemical class 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 description 2
- JPZYXGPCHFZBHO-UHFFFAOYSA-N 1-aminopentadecane Chemical compound CCCCCCCCCCCCCCCN JPZYXGPCHFZBHO-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- QCOGKXLOEWLIDC-UHFFFAOYSA-N N-methylbutylamine Chemical compound CCCCNC QCOGKXLOEWLIDC-UHFFFAOYSA-N 0.000 description 2
- REYJJPSVUYRZGE-UHFFFAOYSA-N Octadecylamine Chemical compound CCCCCCCCCCCCCCCCCCN REYJJPSVUYRZGE-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 2
- 239000012964 benzotriazole Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 description 2
- JQVDAXLFBXTEQA-UHFFFAOYSA-N dibutylamine Chemical compound CCCCNCCCC JQVDAXLFBXTEQA-UHFFFAOYSA-N 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 description 2
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- VPNOHCYAOXWMAR-UHFFFAOYSA-N docosan-1-amine Chemical compound CCCCCCCCCCCCCCCCCCCCCCN VPNOHCYAOXWMAR-UHFFFAOYSA-N 0.000 description 2
- ILRSCQWREDREME-UHFFFAOYSA-N dodecanamide Chemical compound CCCCCCCCCCCC(N)=O ILRSCQWREDREME-UHFFFAOYSA-N 0.000 description 2
- 238000000921 elemental analysis Methods 0.000 description 2
- LIWAQLJGPBVORC-UHFFFAOYSA-N ethylmethylamine Chemical compound CCNC LIWAQLJGPBVORC-UHFFFAOYSA-N 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 125000000623 heterocyclic group Chemical group 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000006078 metal deactivator Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- GVWISOJSERXQBM-UHFFFAOYSA-N n-methylpropan-1-amine Chemical compound CCCNC GVWISOJSERXQBM-UHFFFAOYSA-N 0.000 description 2
- HKUFIYBZNQSHQS-UHFFFAOYSA-N n-octadecyloctadecan-1-amine Chemical compound CCCCCCCCCCCCCCCCCCNCCCCCCCCCCCCCCCCCC HKUFIYBZNQSHQS-UHFFFAOYSA-N 0.000 description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 description 2
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- DPBLXKKOBLCELK-UHFFFAOYSA-N pentan-1-amine Chemical compound CCCCCN DPBLXKKOBLCELK-UHFFFAOYSA-N 0.000 description 2
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 2
- CQRYARSYNCAZFO-UHFFFAOYSA-N salicyl alcohol Chemical compound OCC1=CC=CC=C1O CQRYARSYNCAZFO-UHFFFAOYSA-N 0.000 description 2
- 150000004671 saturated fatty acids Chemical class 0.000 description 2
- 238000000638 solvent extraction Methods 0.000 description 2
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical class O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- 125000000923 (C1-C30) alkyl group Chemical group 0.000 description 1
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- SZOLUXDHHKCYKT-ONEGZZNKSA-N (e)-but-1-en-1-amine Chemical compound CC\C=C\N SZOLUXDHHKCYKT-ONEGZZNKSA-N 0.000 description 1
- OBDUMNZXAIUUTH-HWKANZROSA-N (e)-tetradec-2-ene Chemical group CCCCCCCCCCC\C=C\C OBDUMNZXAIUUTH-HWKANZROSA-N 0.000 description 1
- 0 **c1nc(S*)n[s]1 Chemical compound **c1nc(S*)n[s]1 0.000 description 1
- FJLUATLTXUNBOT-UHFFFAOYSA-N 1-Hexadecylamine Chemical compound CCCCCCCCCCCCCCCCN FJLUATLTXUNBOT-UHFFFAOYSA-N 0.000 description 1
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical group CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 1
- BMVXCPBXGZKUPN-UHFFFAOYSA-N 1-hexanamine Chemical compound CCCCCCN BMVXCPBXGZKUPN-UHFFFAOYSA-N 0.000 description 1
- LRYZVOQZDMSPCB-UHFFFAOYSA-N 2,5-bis(2,4,4-trimethylpentan-2-yldisulfanyl)-1,3,4-thiadiazole Chemical compound CC(C)(C)CC(C)(C)SSC1=NN=C(SSC(C)(C)CC(C)(C)C)S1 LRYZVOQZDMSPCB-UHFFFAOYSA-N 0.000 description 1
- PZNNGSFFFWVXLI-UHFFFAOYSA-N 2,5-bis(hexyldisulfanyl)-1,3,4-thiadiazole Chemical compound CCCCCCSSC1=NN=C(SSCCCCCC)S1 PZNNGSFFFWVXLI-UHFFFAOYSA-N 0.000 description 1
- MGEQSWVPSCZGEK-UHFFFAOYSA-N 2,5-bis(nonyldisulfanyl)-1,3,4-thiadiazole Chemical compound CCCCCCCCCSSC1=NN=C(SSCCCCCCCCC)S1 MGEQSWVPSCZGEK-UHFFFAOYSA-N 0.000 description 1
- ZFOMEJJNWNWWIB-UHFFFAOYSA-N 2,5-bis(octyldisulfanyl)-1,3,4-thiadiazole Chemical compound CCCCCCCCSSC1=NN=C(SSCCCCCCCC)S1 ZFOMEJJNWNWWIB-UHFFFAOYSA-N 0.000 description 1
- GSOYMOAPJZYXTB-UHFFFAOYSA-N 2,6-ditert-butyl-4-(3,5-ditert-butyl-4-hydroxyphenyl)phenol Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(C=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 GSOYMOAPJZYXTB-UHFFFAOYSA-N 0.000 description 1
- LLEFDCACDRGBKD-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;nonanoic acid Chemical compound CCC(CO)(CO)CO.CCCCCCCCC(O)=O LLEFDCACDRGBKD-UHFFFAOYSA-N 0.000 description 1
- CWTQBXKJKDAOSQ-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;octanoic acid Chemical compound CCC(CO)(CO)CO.CCCCCCCC(O)=O CWTQBXKJKDAOSQ-UHFFFAOYSA-N 0.000 description 1
- LTHNHFOGQMKPOV-UHFFFAOYSA-N 2-ethylhexan-1-amine Chemical compound CCCCC(CC)CN LTHNHFOGQMKPOV-UHFFFAOYSA-N 0.000 description 1
- OHOUFTLYDXSBFQ-UHFFFAOYSA-N 3,5-bis(2,4,4-trimethylpentan-2-yldisulfanyl)-1,2,4-thiadiazole Chemical compound CC(C)(C)CC(C)(C)SSC1=NSC(SSC(C)(C)CC(C)(C)C)=N1 OHOUFTLYDXSBFQ-UHFFFAOYSA-N 0.000 description 1
- BYSSNTJJRCNLLJ-UHFFFAOYSA-N 3,5-bis(hexyldisulfanyl)-1,2,4-thiadiazole Chemical compound CCCCCCSSC1=NSC(SSCCCCCC)=N1 BYSSNTJJRCNLLJ-UHFFFAOYSA-N 0.000 description 1
- RQJARQMHCGCFTA-UHFFFAOYSA-N 3,5-bis(nonyldisulfanyl)-1,2,4-thiadiazole Chemical compound CCCCCCCCCSSC1=NSC(SSCCCCCCCCC)=N1 RQJARQMHCGCFTA-UHFFFAOYSA-N 0.000 description 1
- NMNLMUYVHBRPBO-UHFFFAOYSA-N 3,5-bis(octyldisulfanyl)-1,2,4-thiadiazole Chemical compound CCCCCCCCSSC1=NSC(SSCCCCCCCC)=N1 NMNLMUYVHBRPBO-UHFFFAOYSA-N 0.000 description 1
- ALKCLFLTXBBMMP-UHFFFAOYSA-N 3,7-dimethylocta-1,6-dien-3-yl hexanoate Chemical compound CCCCCC(=O)OC(C)(C=C)CCC=C(C)C ALKCLFLTXBBMMP-UHFFFAOYSA-N 0.000 description 1
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 1
- MDWVSAYEQPLWMX-UHFFFAOYSA-N 4,4'-Methylenebis(2,6-di-tert-butylphenol) Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 MDWVSAYEQPLWMX-UHFFFAOYSA-N 0.000 description 1
- LSFPKXUIWLNDRL-UHFFFAOYSA-N 4,5-bis(hexyldisulfanyl)thiadiazole Chemical compound CCCCCCSSC=1N=NSC=1SSCCCCCC LSFPKXUIWLNDRL-UHFFFAOYSA-N 0.000 description 1
- NVMNHQYUQYBUPO-UHFFFAOYSA-N 4,5-bis(nonyldisulfanyl)thiadiazole Chemical compound CCCCCCCCCSSC=1N=NSC=1SSCCCCCCCCC NVMNHQYUQYBUPO-UHFFFAOYSA-N 0.000 description 1
- ZKRHNKMGFHAJRN-UHFFFAOYSA-N 4-(octyldisulfanyl)thiadiazole Chemical compound CCCCCCCCSSC1=CSN=N1 ZKRHNKMGFHAJRN-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
- RREANTFLPGEWEN-MBLPBCRHSA-N 7-[4-[[(3z)-3-[4-amino-5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidin-2-yl]imino-5-fluoro-2-oxoindol-1-yl]methyl]piperazin-1-yl]-1-cyclopropyl-6-fluoro-4-oxoquinoline-3-carboxylic acid Chemical compound COC1=C(OC)C(OC)=CC(CC=2C(=NC(\N=C/3C4=CC(F)=CC=C4N(CN4CCN(CC4)C=4C(=CC=5C(=O)C(C(O)=O)=CN(C=5C=4)C4CC4)F)C\3=O)=NC=2)N)=C1 RREANTFLPGEWEN-MBLPBCRHSA-N 0.000 description 1
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 1
- DJBVDAUKGXUPLO-QEMDMZNVSA-N C(C)C(C(=O)O)CCCC.C([C@H](O)[C@H](O)CO)O.C([C@H](O)[C@H](O)CO)O.C([C@H](O)[C@H](O)CO)O.C([C@H](O)[C@H](O)CO)O.C([C@H](O)[C@H](O)CO)O Chemical compound C(C)C(C(=O)O)CCCC.C([C@H](O)[C@H](O)CO)O.C([C@H](O)[C@H](O)CO)O.C([C@H](O)[C@H](O)CO)O.C([C@H](O)[C@H](O)CO)O.C([C@H](O)[C@H](O)CO)O DJBVDAUKGXUPLO-QEMDMZNVSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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- MHZGKXUYDGKKIU-UHFFFAOYSA-N Decylamine Chemical compound CCCCCCCCCCN MHZGKXUYDGKKIU-UHFFFAOYSA-N 0.000 description 1
- ORAWFNKFUWGRJG-UHFFFAOYSA-N Docosanamide Chemical compound CCCCCCCCCCCCCCCCCCCCCC(N)=O ORAWFNKFUWGRJG-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- WJYIASZWHGOTOU-UHFFFAOYSA-N Heptylamine Chemical compound CCCCCCCN WJYIASZWHGOTOU-UHFFFAOYSA-N 0.000 description 1
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- 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 1
- NKGSHSILLGXYDW-UHFFFAOYSA-N N-undecylundecan-1-amine Chemical compound CCCCCCCCCCCNCCCCCCCCCCC NKGSHSILLGXYDW-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 1
- PLZVEHJLHYMBBY-UHFFFAOYSA-N Tetradecylamine Chemical compound CCCCCCCCCCCCCCN PLZVEHJLHYMBBY-UHFFFAOYSA-N 0.000 description 1
- URGQBRTWLCYCMR-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] nonanoate Chemical compound CCCCCCCCC(=O)OCC(CO)(CO)CO URGQBRTWLCYCMR-UHFFFAOYSA-N 0.000 description 1
- 125000000738 acetamido group Chemical group [H]C([H])([H])C(=O)N([H])[*] 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 125000005037 alkyl phenyl group Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000002490 anilino group Chemical group [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000000043 benzamido group Chemical group [H]N([*])C(=O)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 150000003939 benzylamines Chemical class 0.000 description 1
- SAOKZLXYCUGLFA-UHFFFAOYSA-N bis(2-ethylhexyl) adipate Chemical compound CCCCC(CC)COC(=O)CCCCC(=O)OCC(CC)CCCC SAOKZLXYCUGLFA-UHFFFAOYSA-N 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 150000001639 boron compounds Chemical class 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- DNSISZSEWVHGLH-UHFFFAOYSA-N butanamide Chemical compound CCCC(N)=O DNSISZSEWVHGLH-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
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- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 1
- IOQPZZOEVPZRBK-UHFFFAOYSA-N octan-1-amine Chemical compound CCCCCCCCN IOQPZZOEVPZRBK-UHFFFAOYSA-N 0.000 description 1
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- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 125000003386 piperidinyl group Chemical group 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
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- 230000003449 preventive effect Effects 0.000 description 1
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- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 description 1
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- 150000003230 pyrimidines Chemical class 0.000 description 1
- 125000000719 pyrrolidinyl group Chemical group 0.000 description 1
- 125000004929 pyrrolidonyl group Chemical group N1(C(CCC1)=O)* 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 125000004151 quinonyl group Chemical group 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 description 1
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- 235000017550 sodium carbonate Nutrition 0.000 description 1
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- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000004867 thiadiazoles Chemical class 0.000 description 1
- ABVVEAHYODGCLZ-UHFFFAOYSA-N tridecan-1-amine Chemical compound CCCCCCCCCCCCCN ABVVEAHYODGCLZ-UHFFFAOYSA-N 0.000 description 1
- QFKMMXYLAPZKIB-UHFFFAOYSA-N undecan-1-amine Chemical compound CCCCCCCCCCCN QFKMMXYLAPZKIB-UHFFFAOYSA-N 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- MBBWTVUFIXOUBE-UHFFFAOYSA-L zinc;dicarbamodithioate Chemical class [Zn+2].NC([S-])=S.NC([S-])=S MBBWTVUFIXOUBE-UHFFFAOYSA-L 0.000 description 1
Classifications
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M161/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a non-macromolecular compound, each of these compounds being essential
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
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- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/16—Amides; Imides
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
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- C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
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- C10M2203/1025—Aliphatic fractions used as base material
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
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- C10M2205/0285—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 used as base material
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- C10M2209/084—Acrylate; Methacrylate
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/08—Amides
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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
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- C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
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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
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- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
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- C10M2219/106—Thiadiazoles
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- 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
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- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
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- C10N2030/02—Pour-point; Viscosity index
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- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/68—Shear stability
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
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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
本発明は、潤滑油基油と、潤滑油組成物全量基準で、１．０質量％以上１５．０質量％以下の、重量平均分子量が２万以上２０万以下である分散型ポリ（メタ）アクリレート化合物と、０．０５質量％以上６．０質量％以下のチアジアゾール化合物と、１．５質量％以上４．０質量％以下のポリサルファイド化合物と、０．２質量％以上１．５質量％以下の摩擦調整剤と、を含有し、チアジアゾール化合物の含有量に対するポリサルファイド化合物の含有量の質量比（ポリサルファイド化合物／チアジアゾール化合物）が０．４以上５０以下であり、潤滑油組成物の１００℃における動粘度が７．０ｍｍ２／ｓ以上３５．０ｍｍ２／ｓ以下である、潤滑油組成物を提供する。The present invention relates to a dispersed poly (meth) having a weight base molecular weight of 1.0 to 15.0% by weight and a weight average molecular weight of 20,000 to 200,000 based on the total amount of the lubricating base oil and the lubricating oil composition. An acrylate compound, 0.05% by weight to 6.0% by weight thiadiazole compound, 1.5% by weight to 4.0% by weight polysulfide compound, and 0.2% by weight to 1.5% by weight And a mass ratio of the content of the polysulfide compound to the content of the thiadiazole compound (polysulfide compound / thiadiazole compound) is 0.4 or more and 50 or less, and the lubricating oil composition moves at 100 ° C. Provided is a lubricating oil composition having a viscosity of 7.0 mm2 / s or more and 35.0 mm2 / s or less.
Description
本発明は、潤滑油組成物に関する。 The present invention relates to a lubricating oil composition.
従来、内燃機関や変速機等の機械装置には、その作用を円滑にするために潤滑油組成物が用いられている。潤滑油組成物においては、要求性能に応じて、潤滑油基油に、摩耗防止剤、金属系清浄剤、無灰分散剤、酸化防止剤といった種々の添加剤が配合される（例えば特許文献１〜３を参照）。 Conventionally, lubricating oil compositions have been used in mechanical devices such as internal combustion engines and transmissions in order to make their operations smooth. In the lubricating oil composition, various additives such as an antiwear agent, a metallic detergent, an ashless dispersant, and an antioxidant are blended in the lubricating base oil according to the required performance (for example, Patent Documents 1 to 3). 3).
本発明は、耐荷重性、疲労寿命、せん断安定性、及び摩擦特性のすべてに優れる潤滑油組成物を提供することを目的とする。 An object of the present invention is to provide a lubricating oil composition that is excellent in all of load resistance, fatigue life, shear stability, and friction characteristics.
本発明は、潤滑油基油と、潤滑油組成物全量基準で、１．０質量％以上１５．０質量％以下の、重量平均分子量が２万以上２０万以下である分散型ポリ（メタ）アクリレート化合物と、０．０５質量％以上６．０質量％以下のチアジアゾール化合物と、１．５質量％以上４．０質量％以下のポリサルファイド化合物と、０．２質量％以上１．５質量％以下の摩擦調整剤と、を含有し、チアジアゾール化合物の含有量に対するポリサルファイド化合物の含有量の質量比（ポリサルファイド化合物／チアジアゾール化合物）が０．４以上５０以下であり、潤滑油組成物の１００℃における動粘度が７．０ｍｍ２／ｓ以上３５．０ｍｍ２／ｓ以下である、潤滑油組成物を提供する。The present invention relates to a dispersed poly (meth) having a weight base molecular weight of 1.0 to 15.0% by weight and a weight average molecular weight of 20,000 to 200,000 based on the total amount of the lubricating base oil and the lubricating oil composition. An acrylate compound, 0.05% by weight to 6.0% by weight thiadiazole compound, 1.5% by weight to 4.0% by weight polysulfide compound, and 0.2% by weight to 1.5% by weight And a mass ratio of the content of the polysulfide compound to the content of the thiadiazole compound (polysulfide compound / thiadiazole compound) is 0.4 or more and 50 or less, and the lubricating oil composition moves at 100 ° C. the viscosity is less than 7.0 mm 2 / s or more 35.0 mm 2 / s, to provide a lubricating oil composition.
摩擦調整剤は、１級又は２級のアミド系摩擦調整剤、及び１級又は２級のアミン系摩擦調整剤からなる群より選ばれる少なくとも１種を含むことが好ましい。 The friction modifier preferably contains at least one selected from the group consisting of primary or secondary amide friction modifiers and primary or secondary amine friction modifiers.
潤滑油組成物は、ギヤ油用潤滑油組成物として好適に用いられる。 The lubricating oil composition is suitably used as a lubricating oil composition for gear oil.
潤滑油組成物は、最終減速機油用潤滑油組成物として好適に用いられる。 The lubricating oil composition is suitably used as a final reduction gear oil lubricating oil composition.
本発明によれば、耐荷重性、疲労寿命、せん断安定性、及び摩擦特性のすべてに優れる潤滑油組成物を提供することができる。 According to the present invention, it is possible to provide a lubricating oil composition that is excellent in all of load resistance, fatigue life, shear stability, and friction characteristics.
以下、本発明の実施形態について詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail.
本実施形態に係る潤滑油組成物は、（Ａ）潤滑油基油と、（Ｂ）分散型ポリ（メタ）アクリレート化合物と、（Ｃ）チアジアゾール化合物と、（Ｄ）ポリサルファイド化合物と、（Ｅ）摩擦調整剤と、を含有する。 The lubricating oil composition according to this embodiment comprises (A) a lubricating base oil, (B) a dispersed poly (meth) acrylate compound, (C) a thiadiazole compound, (D) a polysulfide compound, and (E) And a friction modifier.
（Ａ）潤滑油基油（以下「（Ａ）成分」ともいう）は、潤滑油に使用される公知の基油であってよく、例えば、鉱油系基油、合成系基油、又は両者の混合物であってよい。 (A) Lubricating oil base oil (hereinafter also referred to as “component (A)”) may be a known base oil used for lubricating oil, for example, mineral oil base oil, synthetic base oil, or both It may be a mixture.
鉱油系基油としては、原油を常圧蒸留及び減圧蒸留して得られた潤滑油留分を、溶剤脱れき、溶剤抽出、水素化分解、溶剤脱ろう、接触脱ろう、水素化精製、硫酸洗浄、白土処理等の精製処理を単独又は２つ以上適宜組み合わせて精製したパラフィン系、ナフテン系等の鉱油系基油、ノルマルパラフィン、イソパラフィン等が挙げられる。これらの鉱油系基油は、１種単独で使用してもよく、２種以上を任意の割合で組み合わせて使用してもよい。 As mineral base oils, lubricating oil fractions obtained by subjecting crude oil to atmospheric distillation and reduced pressure distillation are subjected to solvent deburring, solvent extraction, hydrocracking, solvent dewaxing, catalytic dewaxing, hydrorefining, sulfuric acid Examples include paraffinic and naphthenic mineral oil base oils, normal paraffins, isoparaffins, and the like, which are purified by combining purification treatments such as washing and clay treatment alone or in combination of two or more. These mineral oil base oils may be used singly or in combination of two or more at any ratio.
好ましい鉱油系基油としては、以下の基油を挙げることができる。
（１）パラフィン基系原油及び／又は混合基系原油の常圧蒸留による留出油
（２）パラフィン基系原油及び／又は混合基系原油の常圧蒸留残渣油の減圧蒸留留出油（ＷＶＧＯ）
（３）潤滑油脱ろう工程により得られるワックス及び／又はＧＴＬプロセス等により製造されるフィッシャートロプシュワックス
（４）上記（１）〜（３）の中から選ばれる１種又は２種以上の混合油のマイルドハイドロクラッキング処理油（ＭＨＣ）
（５）上記（１）〜（４）の中から選ばれる２種以上の油の混合油
（６）上記（１）、（２）、（３）、（４）又は（５）の脱れき油（ＤＡＯ）
（７）上記（６）のマイルドハイドロクラッキング処理油（ＭＨＣ）
（８）上記（１）〜（７）の中から選ばれる２種以上の油の混合油等を原料油とし、この原料油及び／又はこの原料油から回収された潤滑油留分を、通常の精製方法によって精製し、潤滑油留分を回収することによって得られる潤滑油Preferred mineral base oils include the following base oils.
(1) Distilled oil obtained by atmospheric distillation of paraffin-based crude oil and / or mixed-base crude oil (2) Vacuum-distilled distilled oil (WVGO) of atmospheric distillation residue oil of paraffin-based crude oil and / or mixed-base crude oil )
(3) Wax obtained by a lubricant dewaxing step and / or a Fischer-Tropsch wax produced by a GTL process or the like (4) One or more mixed oils selected from the above (1) to (3) Mild hydrocracking oil (MHC)
(5) Mixed oil of two or more oils selected from the above (1) to (4) (6) Detachment of (1), (2), (3), (4) or (5) Oil (DAO)
(7) Mild hydrocracking treatment oil (MHC) of (6) above
(8) A mixed oil or the like of two or more kinds of oils selected from the above (1) to (7) is used as a raw oil, and this raw oil and / or a lubricating oil fraction recovered from this raw oil is usually used. Oil obtained by refining by the refining method and recovering the lubricating oil fraction
ここで、通常の精製方法は、特に制限されるものではなく、基油製造の際に用いられる任意の精製方法であってよい。通常の精製方法としては、例えば、以下の精製方法が挙げられる。
（ａ）水素化分解、水素化仕上げ等の水素化精製
（ｂ）フルフラール溶剤抽出等の溶剤精製
（ｃ）溶剤脱ろう、接触脱ろう等の脱ろう
（ｄ）酸性白土、活性白土等による白土精製
（ｅ）硫酸洗浄、苛性ソーダ洗浄等の薬品（酸又はアルカリ）精製
これらの精製方法は、１種単独で、又は２種以上を任意の組み合わせ及び任意の順序で採用することができる。Here, the normal refining method is not particularly limited, and may be any refining method used in base oil production. Examples of normal purification methods include the following purification methods.
(A) Hydrorefining, such as hydrocracking, hydrofinishing, etc. (b) Solvent refining, such as furfural solvent extraction (c) Dewaxing, such as solvent dewaxing, catalytic dewaxing, etc. (d) White clay with acid clay, activated clay, etc. Purification (e) Chemical (acid or alkali) purification such as sulfuric acid washing and caustic soda washing These purification methods can be used singly or in combination of two or more and in any order.
合成系基油としては、ポリα−オレフィン又はその水素化物、イソブテンオリゴマー又はその水素化物、イソパラフィン、アルキルベンゼン、アルキルナフタレン、ジエステル（ジトリデシルグルタレート、ジ−２−エチルヘキシルアジペート、ジ−２−エチルヘキシルアゼレート、ジイソデシルアジペート、ジトリデシルアジペート、ジ−２−エチルヘキシルセバケート等）、ポリオールエステル（トリメチロールプロパンカプリレート、トリメチロールプロパンペラルゴネート、ペンタエリスリトール２−エチルヘキサノエート、ペンタエリスリトールペラルゴネート等）、ポリオキシアルキレングリコール、ジアルキルジフェニルエーテル、ポリフェニルエーテル等が挙げられ、中でも、ポリα−オレフィンが好ましい。ポリα−オレフィンとしては、例えば、炭素数２以上３２以下、好ましくは６以上１６以下のα−オレフィンのオリゴマー又はコオリゴマー（１−オクテンオリゴマー、デセンオリゴマー、エチレン−プロピレンコオリゴマー等）及びそれらの水素化物が挙げられる。これらの合成系基油は、１種単独で使用してもよく、２種以上を任意の割合で組み合わせて使用してもよい。 Synthetic base oils include poly α-olefins or hydrides thereof, isobutene oligomers or hydrides thereof, isoparaffins, alkylbenzenes, alkylnaphthalenes, diesters (ditridecyl glutarate, di-2-ethylhexyl adipate, di-2-ethylhexyl azease). Rate, diisodecyl adipate, ditridecyl adipate, di-2-ethylhexyl sebacate, etc.), polyol ester (trimethylolpropane caprylate, trimethylolpropane pelargonate, pentaerythritol 2-ethylhexanoate, pentaerythritol pelargonate, etc.), Polyoxyalkylene glycol, dialkyl diphenyl ether, polyphenyl ether and the like can be mentioned, among which poly α-olefin is preferable. Examples of the poly α-olefin include oligomers or co-oligomers (1-octene oligomer, decene oligomer, ethylene-propylene co-oligomer, etc.) of α-olefin having 2 to 32 carbon atoms, preferably 6 to 16 carbon atoms, and those. A hydride is mentioned. These synthetic base oils may be used individually by 1 type, and may be used combining 2 or more types by arbitrary ratios.
潤滑油基油の４０℃における動粘度は、好ましくは２０ｍｍ２／ｓ以上、より好ましくは５０ｍｍ２／ｓ以上、更に好ましくは９０ｍｍ２／ｓ以上である。潤滑油基油の４０℃における動粘度が２０ｍｍ２／ｓ以上であると、油膜形成が充分となり、潤滑性により優れ、高温条件下での蒸発損失がより小さい潤滑油組成物が得られやすくなる。潤滑油基油の４０℃における動粘度は、好ましくは１８０ｍｍ２／ｓ以下、より好ましくは１４０ｍｍ２／ｓ以下、更に好ましくは１３０ｍｍ２／ｓ以下である。潤滑油基油の４０℃における動粘度が１８０ｍｍ２／ｓ以下であると、流体抵抗が小さくなるため、回転抵抗がより小さい潤滑油組成物が得られやすくなる。The kinematic viscosity at 40 ° C. of the lubricating base oil is preferably 20 mm 2 / s or more, more preferably 50 mm 2 / s or more, and still more preferably 90 mm 2 / s or more. If the kinematic viscosity at 40 ° C. of the lubricating base oil is 20 mm 2 / s or more, the formation of an oil film is sufficient, the lubricating oil composition is more excellent, and a lubricating oil composition with lower evaporation loss under high temperature conditions is easily obtained. . The kinematic viscosity of the lubricating base oil at 40 ° C. is preferably 180 mm 2 / s or less, more preferably 140 mm 2 / s or less, and still more preferably 130 mm 2 / s or less. When the kinematic viscosity at 40 ° C. of the lubricating base oil is 180 mm 2 / s or less, the fluid resistance becomes small, so that it becomes easy to obtain a lubricating oil composition having a smaller rotational resistance.
潤滑油基油の１００℃における動粘度は、好ましくは３．０ｍｍ２／ｓ以上、より好ましくは５．０ｍｍ２／ｓ以上、更に好ましくは１０．０ｍｍ２／ｓ以上である。潤滑油基油の１００℃における動粘度が３．０ｍｍ２／ｓ以上であると、油膜形成が充分となり、潤滑性により優れ、高温条件下での蒸発損失がより小さい潤滑油組成物が得られやすくなる。潤滑油基油の１００℃における動粘度は、好ましくは２５ｍｍ２／ｓ以下、より好ましくは１８ｍｍ２／ｓ以下、更に好ましくは１５ｍｍ２／ｓ以下である。潤滑油基油の１００℃における動粘度が２５ｍｍ２／ｓ以下であると、流体抵抗が小さくなるため、回転抵抗がより小さい潤滑油組成物が得られやすくなる。The kinematic viscosity at 100 ° C. of the lubricating base oil is preferably 3.0 mm 2 / s or more, more preferably 5.0 mm 2 / s or more, and still more preferably 10.0 mm 2 / s or more. When the kinematic viscosity at 100 ° C. of the lubricating base oil is 3.0 mm 2 / s or higher, the formation of an oil film is sufficient, the lubricating oil composition is excellent, and the lubricating oil composition having a lower evaporation loss under high temperature conditions is obtained. It becomes easy. The kinematic viscosity at 100 ° C. of the lubricating base oil is preferably 25 mm 2 / s or less, more preferably 18 mm 2 / s or less, and still more preferably 15 mm 2 / s or less. When the kinematic viscosity at 100 ° C. of the lubricating base oil is 25 mm 2 / s or less, the fluid resistance becomes small, so that it becomes easy to obtain a lubricating oil composition having a smaller rotational resistance.
潤滑油基油の粘度指数は、好ましくは６０以上、より好ましくは８０以上、更に好ましくは９０以上である。粘度指数が６０以上であると、低温から高温にわたってより良好な粘度特性を示す潤滑油組成物が得られやすくなる。 The viscosity index of the lubricating base oil is preferably 60 or higher, more preferably 80 or higher, and still more preferably 90 or higher. When the viscosity index is 60 or more, it becomes easy to obtain a lubricating oil composition exhibiting better viscosity characteristics from a low temperature to a high temperature.
本発明における動粘度及び粘度指数は、それぞれＪＩＳ Ｋ２２８３：２０００に準拠して測定された動粘度及び粘度指数を意味する。 The kinematic viscosity and viscosity index in the present invention mean kinematic viscosity and viscosity index measured in accordance with JIS K2283: 2000, respectively.
潤滑油基油中の硫黄含有量は、潤滑油基油全量を基準として、５０００質量ｐｐｍ以下、４５００質量ｐｐｍ以下、又は４０００質量ｐｐｍ以下であってよい。潤滑油基油中の硫黄含有量は、ＩＣＰ元素分析法によって測定することができる。 The sulfur content in the lubricant base oil may be 5000 mass ppm or less, 4500 mass ppm or less, or 4000 mass ppm or less based on the total amount of the lubricant base oil. The sulfur content in the lubricating base oil can be measured by ICP elemental analysis.
（Ａ）成分の含有量は、潤滑油組成物全量基準で、例えば７０質量％以上、８０質量％以上、又は８５質量％以上であってよい。（Ａ）成分の含有量は、潤滑油組成物全量基準で、例えば９５質量％以下、９３質量％以下、又は９０質量％以下であってよい。 The content of the component (A) may be, for example, 70% by mass or more, 80% by mass or more, or 85% by mass or more based on the total amount of the lubricating oil composition. The content of the component (A) may be, for example, 95% by mass or less, 93% by mass or less, or 90% by mass or less, based on the total amount of the lubricating oil composition.
（Ｂ）分散型ポリ（メタ）アクリレート化合物（以下「（Ｂ）成分」ともいう）は、分散基を有するポリ（メタ）アクリレート化合物を含む。分散基は、好ましくは窒素含有分散基であり、より好ましくはジメチルアミノ基である。 (B) The dispersion type poly (meth) acrylate compound (hereinafter also referred to as “component (B)”) includes a poly (meth) acrylate compound having a dispersion group. The dispersing group is preferably a nitrogen-containing dispersing group, more preferably a dimethylamino group.
（Ｂ）成分は、好ましくは、下記式（１）で表される構造単位及び下記式（２）で表される構造単位から選ばれる少なくとも１種の構造単位を有するポリ（メタ）アクリレート化合物を含む。 The component (B) is preferably a poly (meth) acrylate compound having at least one structural unit selected from a structural unit represented by the following formula (1) and a structural unit represented by the following formula (2). Including.
Ｒ２で表される炭素数１〜１８のアルキレン基としては、エチレン基、プロピレン基、ブチレン基、ペンチレン基、ヘキシレン基、へプチレン基、オクチレン基、ノニレン基、デシレン基、ウンデシレン基、ドデシレン基、トリデシレン基、テトラデシレン基、ペンタデシレン基、ヘキサデシレン基、ヘプタデシレン基、及びオクタデシレン基が例示される。これらのアルキレン基は、直鎖状でも分枝状でもよい。Examples of the alkylene group having 1 to 18 carbon atoms represented by R 2 include ethylene, propylene, butylene, pentylene, hexylene, heptylene, octylene, nonylene, decylene, undecylene, and dodecylene. , Tridecylene group, tetradecylene group, pentadecylene group, hexadecylene group, heptadecylene group, and octadecylene group. These alkylene groups may be linear or branched.
Ｒ３で表される炭化水素基は、例えば炭素数１〜１２の直鎖状又は分岐状の炭化水素基であってよい。The hydrocarbon group represented by R 3 may be, for example, a linear or branched hydrocarbon group having 1 to 12 carbon atoms.
Ｅ１，Ｅ２で表される基としては、それぞれ、ジメチルアミノ基、ジエチルアミノ基、ジプロピルアミノ基、ジブチルアミノ基、アニリノ基、トルイジノ基、キシリジノ基、アセチルアミノ基、ベンゾイルアミノ基、モルホリノ基、ピロリル基、ピロリノ基、ピリジル基、メチルピリジル基、ピロリジニル基、ピペリジニル基、キノニル基、ピロリドニル基、ピロリドノ基、イミダゾリノ基、及びピラジノ基が例示される。Examples of the groups represented by E 1 and E 2 include a dimethylamino group, a diethylamino group, a dipropylamino group, a dibutylamino group, an anilino group, a toluidino group, a xylidino group, an acetylamino group, a benzoylamino group, and a morpholino group, respectively. Pyrrolyl group, pyrrolino group, pyridyl group, methylpyridyl group, pyrrolidinyl group, piperidinyl group, quinonyl group, pyrrolidonyl group, pyrrolidono group, imidazolino group, and pyrazino group.
分散型ポリ（メタ）アクリレートの重量平均分子量は、疲労寿命に優れる観点から、好ましくは２万以上、より好ましくは３万以上、更に好ましくは４万以上である。分散型ポリ（メタ）アクリレートの重量平均分子量は、せん断安定性に優れる観点から、好ましくは２０万以下、より好ましくは１７万以下、更に好ましくは１１万以下、特に好ましくは５万以下である。分散型ポリ（メタ）アクリレートの重量平均分子量は、疲労寿命とせん断安定性との両立の観点から、２万以上２０万以下であり、好ましくは、２万以上１７万以下、２万以上１１万以下、２万以上５万以下、３万以上２０万以下、３万以上１７万以下、３万以上１１万以下、３万以上５万以下、４万以上２０万以下、４万以上１７万以下、４万以上１１万以下、又は４万以上５万以下である。本発明における重量平均分子量は、ＧＰＣ分析により測定される重量平均分子量（ポリスチレン（標準試料）換算値）を意味する。 The weight average molecular weight of the dispersed poly (meth) acrylate is preferably 20,000 or more, more preferably 30,000 or more, and further preferably 40,000 or more, from the viewpoint of excellent fatigue life. The weight average molecular weight of the dispersed poly (meth) acrylate is preferably 200,000 or less, more preferably 170,000 or less, still more preferably 110,000 or less, and particularly preferably 50,000 or less, from the viewpoint of excellent shear stability. The weight average molecular weight of the dispersed poly (meth) acrylate is 20,000 or more and 200,000 or less, preferably 20,000 or more and 170,000 or less, and 20,000 or more and 110,000 from the viewpoint of achieving both fatigue life and shear stability. 20,000 to 50,000, 30,000 to 200,000, 30,000 to 170,000, 30,000 to 110,000, 30,000 to 50,000, 40,000 to 200,000, 40,000 to 170,000 40,000 to 110,000, or 40,000 to 50,000. The weight average molecular weight in this invention means the weight average molecular weight (polystyrene (standard sample) conversion value) measured by GPC analysis.
（Ｂ）成分の含有量は、疲労寿命に優れる観点から、潤滑油組成物全量基準で、好ましくは１．０質量％以上、より好ましくは２．０質量％以上、更に好ましくは２．５質量％以上である。（Ｂ）成分の含有量は、せん断安定性に優れる観点から、潤滑油組成物全量基準で、好ましくは１５．０質量％以下、より好ましくは９．０質量％以下、好ましくは５．０質量％以下である。（Ｂ）成分の含有量は、疲労寿命とせん断安定性との両立の観点から、潤滑油組成物全量基準で、１．０質量％以上１５．０質量％以下であり、好ましくは、１．０質量％以上９．０質量％以下、１．０質量％以上５．０質量％以下、２．０質量％以上１５．０質量％以下、２．０質量％以上９．０質量％以下、２．０質量％以上５．０質量％以下、２．５質量％以上１５．０質量％以下、２．５質量％以上９．０質量％以下、又は２．５質量％以上５．０質量％以下である。 The content of the component (B) is preferably 1.0% by mass or more, more preferably 2.0% by mass or more, and further preferably 2.5% by mass based on the total amount of the lubricating oil composition from the viewpoint of excellent fatigue life. % Or more. The content of the component (B) is preferably 15.0% by mass or less, more preferably 9.0% by mass or less, preferably 5.0% by mass based on the total amount of the lubricating oil composition from the viewpoint of excellent shear stability. % Or less. The content of the component (B) is 1.0% by mass or more and 15.0% by mass or less based on the total amount of the lubricating oil composition from the viewpoint of achieving both fatigue life and shear stability. 0% by mass to 9.0% by mass, 1.0% by mass to 5.0% by mass, 2.0% by mass to 15.0% by mass, 2.0% by mass to 9.0% by mass, 2.0% by mass to 5.0% by mass, 2.5% by mass to 15.0% by mass, 2.5% by mass to 9.0% by mass, or 2.5% by mass to 5.0% by mass % Or less.
（Ｃ）チアジアゾール化合物（以下「（Ｃ）成分」ともいう）は、公知のチアジアゾール化合物であってよく、例えば、下記式（３）で表される１，３，４−チアジアゾール化合物、下記式（４）で表される１，２，４−チアジアゾール化合物、下記式（５）で表される１，２，３−チアジアゾール化合物であってよい。 The (C) thiadiazole compound (hereinafter also referred to as “component (C)”) may be a known thiadiazole compound, for example, a 1,3,4-thiadiazole compound represented by the following formula (3), the following formula ( It may be a 1,2,4-thiadiazole compound represented by 4) or a 1,2,3-thiadiazole compound represented by the following formula (5).
式中、Ｒ４、Ｒ５、Ｒ６、Ｒ７、Ｒ８及びＲ９は、それぞれ独立に水素原子又は炭素数１〜２０の炭化水素基を表し、ａ、ｂ、ｃ、ｄ、ｅ及びｆは、それぞれ独立に０〜８の整数を表す。In the formula, R 4 , R 5 , R 6 , R 7 , R 8 and R 9 each independently represent a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms, and a, b, c, d, e and f represents the integer of 0-8 each independently.
このようなチアジアゾール化合物の具体例としては、２，５−ビス（ｎ−ヘキシルジチオ）−１，３，４−チアジアゾール、２，５−ビス（ｎ−オクチルジチオ）−１，３，４−チアジアゾール、２，５−ビス（ｎ−ノニルジチオ）−１，３，４−チアジアゾール、２，５−ビス（１，１，３，３−テトラメチルブチルジチオ）−１，３，４−チアジアゾール、３，５−ビス（ｎ−ヘキシルジチオ）−１，２，４−チアジアゾール、３，５−ビス（ｎ−オクチルジチオ）−１，２，４−チアジアゾール、３，５−ビス（ｎ−ノニルジチオ）−１，２，４−チアジアゾール、３，５−ビス（１，１，３，３−テトラメチルブチルジチオ）−１，２，４−チアジアゾール、４，５−ビス（ｎ−ヘキシルジチオ）−１，２，３−チアジアゾール、４，５−ビス（ｎ−オクチルジチオ）−１，２，３−チアジアゾール、４，５−ビス（ｎ−ノニルジチオ）−１，２，３−チアジアゾール、４，５−ビス（１，１，３，３−テトラメチルブチルジチオ）−１，２，３−チアジアゾールが挙げられる。 Specific examples of such thiadiazole compounds include 2,5-bis (n-hexyldithio) -1,3,4-thiadiazole, 2,5-bis (n-octyldithio) -1,3,4-thiadiazole. 2,5-bis (n-nonyldithio) -1,3,4-thiadiazole, 2,5-bis (1,1,3,3-tetramethylbutyldithio) -1,3,4-thiadiazole, 3, 5-bis (n-hexyldithio) -1,2,4-thiadiazole, 3,5-bis (n-octyldithio) -1,2,4-thiadiazole, 3,5-bis (n-nonyldithio) -1 , 2,4-thiadiazole, 3,5-bis (1,1,3,3-tetramethylbutyldithio) -1,2,4-thiadiazole, 4,5-bis (n-hexyldithio) -1,2 , 3-thiadiazole, 4 5-bis (n-octyldithio) -1,2,3-thiadiazole, 4,5-bis (n-nonyldithio) -1,2,3-thiadiazole, 4,5-bis (1,1,3,3) -Tetramethylbutyldithio) -1,2,3-thiadiazole.
（Ｃ）成分の含有量は、耐荷重性に優れる観点から、潤滑油組成物全量基準で、好ましくは０．０５質量％以上、より好ましくは０．２質量％以上、更に好ましくは１．０質量％以上、特に好ましくは１．５質量％以上である。（Ｃ）成分の含有量は、疲労寿命に優れる観点から、潤滑油組成物全量基準で、好ましくは６．０質量％以下、より好ましくは４．５質量％以下、更に好ましくは３．０質量％以下である。（Ｃ）成分の含有量は、耐荷重性と疲労寿命との両立の観点から、潤滑油組成物全量基準で、０．０５質量％以上６．０質量％以下であり、好ましくは、０．０５質量％以上４．５質量％以下、０．０５質量％以上３．０質量％以下、０．２質量％以上６．０質量％以下、０．２質量％以上４．５質量％以下、０．２質量％以上３．０質量％以下、１．０質量％以上６．０質量％以下、１．０質量％以上４．５質量％以下、１．０質量％以上３．０質量％以下、１．５質量％以上６．０質量％以下、１．５質量％以上４．５質量％以下、又は１．５質量％以上３．０質量％以下である。 The content of the component (C) is preferably 0.05% by mass or more, more preferably 0.2% by mass or more, and further preferably 1.0% by mass based on the total amount of the lubricating oil composition from the viewpoint of excellent load resistance. It is at least 1.5% by mass, particularly preferably at least 1.5% by mass. The content of the component (C) is preferably 6.0% by mass or less, more preferably 4.5% by mass or less, and still more preferably 3.0% by mass based on the total amount of the lubricating oil composition from the viewpoint of excellent fatigue life. % Or less. The content of the component (C) is 0.05% by mass or more and 6.0% by mass or less on the basis of the total amount of the lubricating oil composition from the viewpoint of achieving both load resistance and fatigue life. 05% to 4.5% by mass, 0.05% to 3.0% by mass, 0.2% to 6.0% by mass, 0.2% to 4.5% by mass, 0.2% by mass to 3.0% by mass, 1.0% by mass to 6.0% by mass, 1.0% by mass to 4.5% by mass, 1.0% by mass to 3.0% by mass Hereafter, they are 1.5 mass% or more and 6.0 mass% or less, 1.5 mass% or more and 4.5 mass% or less, or 1.5 mass% or more and 3.0 mass% or less.
（Ｄ）ポリサルファイド化合物（以下「（Ｄ）成分」ともいう）は、公知のポリサルファイド化合物であってよく、例えば、下記式（６）で表される化合物であってよい。
Ｒ１０−Ｓｘ−Ｒ１１ （６）(D) The polysulfide compound (hereinafter also referred to as “component (D)”) may be a known polysulfide compound, for example, a compound represented by the following formula (6).
R 10 -S x -R 11 (6)
式（６）中、Ｒ１０及びＲ１１は、それぞれ独立に、炭素数３〜２０の直鎖状若しくは分枝状のアルキル基、炭素数６〜２０のアリール基、炭素数６〜２０のアルカリール基、又は炭素数６〜２０のアラルキル基を表し、ｘは２〜６の整数、好ましくは２〜５の整数を表す。In formula (6), R 10 and R 11 are each independently a linear or branched alkyl group having 3 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an alkenyl having 6 to 20 carbon atoms. Represents a reel group or an aralkyl group having 6 to 20 carbon atoms, and x represents an integer of 2 to 6, preferably an integer of 2 to 5.
（Ｄ）成分の含有量は、極圧性に優れる観点から、潤滑油組成物全量基準で、好ましくは１．５質量％以上、より好ましくは１．８質量％以上、更に好ましくは２．０質量％以上である。（Ｄ）成分の含有量は、疲労寿命に優れる観点から、潤滑油組成物全量基準で、好ましくは４．０質量％以下、より好ましくは３．０質量％以下、更に好ましくは２．５質量％以下、特に好ましくは２．２質量％以下である。（Ｄ）成分の含有量は、極圧性と疲労寿命との両立の観点から、潤滑油組成物全量基準で、１．５質量％以上４．０質量％以下であり、好ましくは、１．５質量％以上３．０質量％以下、１．５質量％以上２．５質量％以下、１．８質量％以上４．０質量％以下、１．８質量％以上２．５質量％以下、１．８質量％以上２．２質量％以下、２．０質量％以上４．０質量％以下、２．０質量％以上２．５質量％以下、２．０質量％以上２．２質量％以下である。 The content of the component (D) is preferably 1.5% by mass or more, more preferably 1.8% by mass or more, and further preferably 2.0% by mass, based on the total amount of the lubricating oil composition, from the viewpoint of excellent extreme pressure properties. % Or more. The content of the component (D) is preferably 4.0% by mass or less, more preferably 3.0% by mass or less, and still more preferably 2.5% by mass based on the total amount of the lubricating oil composition from the viewpoint of excellent fatigue life. % Or less, particularly preferably 2.2% by mass or less. The content of the component (D) is 1.5% by mass or more and 4.0% by mass or less, preferably 1.5% by mass based on the total amount of the lubricating oil composition from the viewpoint of achieving both extreme pressure properties and fatigue life. % By mass to 3.0% by mass, 1.5% by mass to 2.5% by mass, 1.8% by mass to 4.0% by mass, 1.8% by mass to 2.5% by mass, 0.8 mass% to 2.2 mass%, 2.0 mass% to 4.0 mass%, 2.0 mass% to 2.5 mass%, 2.0 mass% to 2.2 mass% It is.
（Ｅ）摩擦調整剤（以下「（Ｅ）成分」ともいう）は、公知の摩擦調整剤であってよく、例えば、アミン系、アミド系、イミド系、脂肪酸エステル系、脂肪酸系、脂肪族アルコール系、脂肪族エーテル系の摩擦調整剤であってよい。（Ｅ）成分は、好ましくは、１級又は２級のアミン系摩擦調整剤、及び１級又は２級のアミド系摩擦調整剤からなる群より選ばれる少なくとも１種の摩擦調整剤を含む。 (E) The friction modifier (hereinafter also referred to as “component (E)”) may be a known friction modifier, such as an amine, amide, imide, fatty acid ester, fatty acid, aliphatic alcohol. Or an aliphatic ether friction modifier. The component (E) preferably contains at least one friction modifier selected from the group consisting of primary or secondary amine friction modifiers and primary or secondary amide friction modifiers.
１級又は２級のアミン系摩擦調整剤としては、メチルアミン、エチルアミン、プロピルアミン、ブチルアミン、ペンチルアミン、ヘキシルアミン、ヘプチルアミン、オクチルアミン、ノニルアミン、デシルアミン、ウンデシルアミン、ドデシルアミン（ラウリルアミン）、トリデシルアミン、テトラデシルアミン、ペンタデシルアミン、ヘキサデシルアミン、ヘプタデシルアミン、オクタデシルアミン（ステアリルアミン）、ドコシルアミン（ベヘニルアミン）、ジメチルアミン、ジエチルアミン、ジプロピルアミン、ジブチルアミン、ジペンチルアミン、ジヘキシルアミン、ジヘプチルアミン、ジオクチルアミン、ジノニルアミン、ジデシルアミン、ジウンデシルアミン、ジドデシルアミン、ジトリデシルアミン、ジテトラデシルアミン、ジペンタデシルアミン、ジヘキサデシルアミン、ジヘプタデシルアミン、ジオクタデシルアミン、メチルエチルアミン、メチルプロピルアミン、メチルブチルアミン、エチルプロピルアミン、エチルブチルアミン、プロピルブチルアミン等の炭素数１〜３０のアルキル基（これらのアルキル基は直鎖状でも分枝状でもよい）を有するアルキルアミン；エテニルアミン、プロペニルアミン、ブテニルアミン、オクテニルアミン、オレイルアミン等の炭素数２〜３０のアルケニル基（これらのアルケニル基は直鎖状でも分枝状でもよい）を有するアルケニルアミン；シクロヘキシルアミン等の脂環式アミン；メチレンジアミン、エチレンジアミン、プロピレンジアミン、ブチレンジアミン等の炭素数１〜３０のアルキレン基を有するアルキレンジアミンが例示される。これらの中でも、アルキルアミン及びアルケニルアミンが好ましい。アルキルアミンのアルキル基の炭素数は、好ましくは４〜２８、より好ましくは６〜２５である。アルケニルアミンのアルケニル基の炭素数は、好ましくは４〜２８、より好ましくは６〜２５である。 As primary or secondary amine friction modifiers, methylamine, ethylamine, propylamine, butylamine, pentylamine, hexylamine, heptylamine, octylamine, nonylamine, decylamine, undecylamine, dodecylamine (laurylamine) , Tridecylamine, tetradecylamine, pentadecylamine, hexadecylamine, heptadecylamine, octadecylamine (stearylamine), docosylamine (behenylamine), dimethylamine, diethylamine, dipropylamine, dibutylamine, dipentylamine, dihexyl Amine, diheptylamine, dioctylamine, dinonylamine, didecylamine, diundecylamine, didodecylamine, ditridecylamine, ditetradecylamine, C1-C30 alkyl groups such as pentadecylamine, dihexadecylamine, diheptadecylamine, dioctadecylamine, methylethylamine, methylpropylamine, methylbutylamine, ethylpropylamine, ethylbutylamine, propylbutylamine (these An alkylamine having an alkyl group which may be linear or branched; an alkenyl group having 2 to 30 carbon atoms such as ethenylamine, propenylamine, butenylamine, octenylamine, oleylamine (these alkenyl groups may be linear or branched); An alicyclic amine such as cyclohexylamine; an alkylenedi having an alkylene group of 1 to 30 carbon atoms such as methylenediamine, ethylenediamine, propylenediamine, butylenediamine; Min is exemplified. Among these, alkylamine and alkenylamine are preferable. The carbon number of the alkyl group of the alkylamine is preferably 4 to 28, more preferably 6 to 25. The carbon number of the alkenyl group of the alkenylamine is preferably 4 to 28, more preferably 6 to 25.
１級又は２級のアミド系摩擦調整剤としては、エタン酸アミド、プロパン酸アミド、ブタン酸アミド、オクタン酸アミド、デカン酸アミド、ドデカン酸アミド、ヘキサデカン酸アミド、オクタデカン酸アミド、ドコサン酸アミド等の炭素数１〜３０のアルキル基（これらのアルキル基は直鎖状でも分枝状でもよい）を有する飽和脂肪酸アミド；オレイン酸アミド、エルカ酸アミド等の炭素数２〜３０のアルケニル基（これらのアルケニル基は直鎖状でも分枝状でもよい）を有する不飽和脂肪酸アミドが例示される。飽和脂肪酸アミドのアルキル基の炭素数は、好ましくは４〜２８、より好ましくは６〜２５である。不飽和脂肪酸アミドのアルケニル基の炭素数は、好ましくは４〜２８、より好ましくは６〜２５である。 Examples of primary or secondary amide friction modifiers include ethanoic acid amide, propanoic acid amide, butanoic acid amide, octanoic acid amide, decanoic acid amide, dodecanoic acid amide, hexadecanoic acid amide, octadecanoic acid amide, docosanoic acid amide, etc. A saturated fatty acid amide having an alkyl group having 1 to 30 carbon atoms (these alkyl groups may be linear or branched); an alkenyl group having 2 to 30 carbon atoms such as oleic acid amide and erucic acid amide (these The alkenyl group of which may be linear or branched). Carbon number of the alkyl group of the saturated fatty acid amide is preferably 4 to 28, more preferably 6 to 25. The carbon number of the alkenyl group of the unsaturated fatty acid amide is preferably 4 to 28, more preferably 6 to 25.
（Ｅ）成分の含有量は、摩擦特性に優れる観点から、潤滑油組成物全量基準で、好ましくは０．２質量％以上、より好ましくは０．５質量％以上、更に好ましくは０．７質量％以上である。（Ｅ）成分の含有量は、酸化安定性に優れる観点から、潤滑油組成物全量基準で、好ましくは１．５質量％以下、より好ましくは１．２質量％以下、更に好ましくは０．９質量％以下である。（Ｅ）成分の含有量は、摩擦特性と酸化安定性との両立の観点から、潤滑油組成物全量基準で、０．２質量％以上１．５質量％以下であり、好ましくは、０．２質量％以上１．２質量％以下、０．２質量％以上０．９質量％以下、０．５質量％以上１．５質量％以下、０．５質量％以上１．２質量％以下、０．５質量％以上０．９質量％以下、０．７質量％以上１．５質量％以下、０．７質量％以上１．２質量％以下、又は０．７質量％以上０．９質量％以下である。 The content of the component (E) is preferably 0.2% by mass or more, more preferably 0.5% by mass or more, and still more preferably 0.7% by mass based on the total amount of the lubricating oil composition from the viewpoint of excellent friction characteristics. % Or more. The content of the component (E) is preferably 1.5% by mass or less, more preferably 1.2% by mass or less, and still more preferably 0.9% by mass based on the total amount of the lubricating oil composition from the viewpoint of excellent oxidation stability. It is below mass%. The content of the component (E) is 0.2% by mass or more and 1.5% by mass or less on the basis of the total amount of the lubricating oil composition from the viewpoint of achieving both frictional characteristics and oxidation stability, and preferably 2% by mass to 1.2% by mass, 0.2% by mass to 0.9% by mass, 0.5% by mass to 1.5% by mass, 0.5% by mass to 1.2% by mass, 0.5% to 0.9% by mass, 0.7% to 1.5% by mass, 0.7% to 1.2% by mass, or 0.7% to 0.9% by mass % Or less.
潤滑油組成物において、（Ｃ）チアジアゾール化合物の含有量に対する（Ｄ）ポリサルファイド化合物の含有量の質量比（（Ｄ）ポリサルファイド化合物／（Ｃ）チアジアゾール化合物）は、疲労寿命に優れる観点から、０．４以上５０以下であり、より好ましくは０．５以上３０以下、更に好ましくは１．０以上１５以下、特に好ましくは１．０以上１０以下である。当該質量比（（Ｄ）成分／（Ｃ）成分）は、０．４以上、０．５以上、又は１．０以上であってよく、５０以下、３０以下、１５以下、又は１０以下であってよい。 In the lubricating oil composition, the mass ratio of the content of the (D) polysulfide compound to the content of the (C) thiadiazole compound ((D) polysulfide compound / (C) thiadiazole compound) is 0. 4 or more and 50 or less, more preferably 0.5 or more and 30 or less, still more preferably 1.0 or more and 15 or less, and particularly preferably 1.0 or more and 10 or less. The mass ratio (component (D) / component (C)) may be 0.4 or more, 0.5 or more, or 1.0 or more, and is 50 or less, 30 or less, 15 or less, or 10 or less. It's okay.
潤滑油組成物は、上記（Ａ）〜（Ｅ）成分に加えて、必要に応じてその他の添加剤を更に含有していてもよい。その他の添加剤としては、例えば、極圧剤、粘度調整剤、金属系清浄剤、無灰分散剤、酸化防止剤、腐食防止剤、防錆剤、抗乳化剤、金属不活性化剤、消泡剤等が挙げられる。 The lubricating oil composition may further contain other additives as required in addition to the components (A) to (E). Other additives include, for example, extreme pressure agents, viscosity modifiers, metal detergents, ashless dispersants, antioxidants, corrosion inhibitors, rust inhibitors, antiemulsifiers, metal deactivators, and antifoaming agents. Etc.
極圧剤としては、亜リン酸エステル（フォスファイト）、リン酸エステル、並びに、これらのアミン塩、金属塩、及び誘導体等のリン系極圧剤、ジチオカーバメート、亜鉛ジチオカーバメート、モリブデンジチオカーバメート（ＭｏＤＴＣ）、硫化オレフィン、硫化油脂等の硫黄系極圧剤などが挙げられる。 As extreme pressure agents, phosphorous esters (phosphites), phosphate esters, phosphorus extreme pressure agents such as amine salts, metal salts and derivatives thereof, dithiocarbamates, zinc dithiocarbamates, molybdenum dithiocarbamates ( MoDTC), sulfur-based extreme pressure agents such as sulfurized olefins, sulfurized fats and oils, and the like.
粘度調整剤としては、例えば、非分散型ポリ（メタ）アクリレート系粘度調整剤、スチレン−無水マレイン酸エステル共重合体系粘度調整剤、非分散型若しくは分散型エチレン−α−オレフィン共重合体又はその水素化物、ポリイソブチレン又はその水素化物、スチレン−ジエン水素化共重合体、ポリアルキルスチレンが挙げられる。 As the viscosity modifier, for example, a non-dispersed poly (meth) acrylate viscosity modifier, a styrene-maleic anhydride copolymer viscosity modifier, a non-dispersed or dispersed ethylene-α-olefin copolymer or its Examples thereof include hydrides, polyisobutylene or hydrides thereof, styrene-diene hydrogenated copolymers, and polyalkylstyrenes.
金属系清浄剤としては、サリシレート系清浄剤、フェネート系清浄剤、スルホネート系清浄剤等が挙げられる。これらの金属系清浄剤は、アルカリ金属又はアルカリ土類金属との正塩、塩基正塩、過塩基性塩のいずれであってもよい。 Examples of metal detergents include salicylate detergents, phenate detergents, sulfonate detergents, and the like. These metal detergents may be any of normal salt, basic normal salt, and overbased salt with alkali metal or alkaline earth metal.
無灰分散剤としては、ポリオレフィンから誘導されるアルケニル基又はアルキル基を有するコハク酸イミド、ベンジルアミン、ポリアミン、マンニッヒ塩基等の含窒素化合物や、これら含窒素化合物をホウ酸、ホウ酸塩等のホウ素化合物で変性させたホウ素変性コハク酸イミド等のホウ素変性含窒素化合物（ホウ素系無灰分散剤）が挙げられる。 Ashless dispersants include nitrogen-containing compounds such as succinimides, benzylamines, polyamines, Mannich bases having alkenyl groups or alkyl groups derived from polyolefins, and boron compounds such as boric acid and borates. Examples thereof include boron-modified nitrogen-containing compounds (boron-based ashless dispersant) such as boron-modified succinimide modified with a compound.
酸化防止剤としては、フェノール系、アミン系等の無灰酸化防止剤、銅系、モリブデン系等の金属系酸化防止剤が挙げられる。具体的には、例えば、フェノール系無灰酸化防止剤としては、４，４’−メチレンビス（２，６−ジ−ｔｅｒｔ−ブチルフェノール）、４，４’−ビス（２，６−ジ−ｔｅｒｔ−ブチルフェノール）等が、アミン系無灰酸化防止剤としては、フェニル−α−ナフチルアミン、アルキルフェニル−α−ナフチルアミン、ジアルキルジフェニルアミン、ジフェニルアミン等が挙げられる。 Examples of the antioxidant include ashless antioxidants such as phenols and amines, and metal antioxidants such as copper and molybdenum. Specifically, for example, as a phenol-based ashless antioxidant, 4,4′-methylenebis (2,6-di-tert-butylphenol), 4,4′-bis (2,6-di-tert- Butylphenol) and the like are amine-based ashless antioxidants such as phenyl-α-naphthylamine, alkylphenyl-α-naphthylamine, dialkyldiphenylamine, and diphenylamine.
腐食防止剤としては、例えば、ベンゾトリアゾール系、トリルトリアゾール系、イミダゾール系化合物等が挙げられる。 Examples of the corrosion inhibitor include benzotriazole, tolyltriazole, and imidazole compounds.
防錆剤としては、例えば、アルケニルコハク酸エステル、多価アルコールエステル、石油スルホネート、アルキルベンゼンスルホネート、ジノニルナフタレンスルホネート等が挙げられる。 Examples of the rust preventive include alkenyl succinic acid ester, polyhydric alcohol ester, petroleum sulfonate, alkylbenzene sulfonate, dinonylnaphthalene sulfonate, and the like.
抗乳化剤としては、例えば、ポリオキシエチレンアルキルエーテル、ポリオキシエチレンアルキルフェニルエーテル、ポリオキシエチレンアルキルナフチルエーテル等のポリアルキレングリコール系非イオン系界面活性剤などが挙げられる。 Examples of the demulsifier include polyalkylene glycol nonionic surfactants such as polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, and polyoxyethylene alkyl naphthyl ether.
金属不活性化剤としては、例えば、イミダゾリン、ピリミジン誘導体、ベンゾトリアゾール又はその誘導体等が挙げられる。 Examples of the metal deactivator include imidazoline, pyrimidine derivatives, benzotriazole or derivatives thereof.
消泡剤としては、例えば、２５℃における動粘度が１０００ｍｍ２／ｓ以上１０００００ｍｍ２／ｓ以下のシリコーンオイル、アルケニルコハク酸誘導体、ポリヒドロキシ脂肪族アルコールと長鎖脂肪酸とのエステル、メチルサリチレートとｏ−ヒドロキシベンジルアルコールとのエステル等が挙げられる。As the defoaming agent, for example, 100,000 mm kinematic viscosity at 25 ° C. is 1000 mm 2 / s or more 2 / s or less silicone oil, alkenylsuccinic acid derivatives, esters of polyhydroxy aliphatic alcohols and long-chain fatty acids, methyl salicylate And esters of o-hydroxybenzyl alcohol and the like.
その他の添加剤の含有量は、潤滑油組成物全量基準で０．０１〜２０質量％であってよい。 The content of other additives may be 0.01 to 20% by mass based on the total amount of the lubricating oil composition.
潤滑油組成物の４０℃における動粘度は、好ましくは７０ｍｍ２／ｓ以上、より好ましくは１００ｍｍ２／ｓ以上、更に好ましくは１２０ｍｍ２／ｓ以上である。４０℃における動粘度が６０ｍｍ２／ｓ以上であることによって、潤滑部位の油膜保持性及び蒸発性により優れる傾向にある。潤滑油組成物の４０℃における動粘度は、好ましくは２５０ｍｍ２／ｓ以下、より好ましくは２３０ｍｍ２／ｓ以下、更に好ましくは２１０ｍｍ２／ｓ以下である。４０℃における動粘度が２６０ｍｍ２／ｓ以下であることによって、低温流動性及び省燃費性に優れる傾向にある。The kinematic viscosity at 40 ° C. of the lubricating oil composition is preferably 70 mm 2 / s or more, more preferably 100 mm 2 / s or more, and still more preferably 120 mm 2 / s or more. When the kinematic viscosity at 40 ° C. is 60 mm 2 / s or more, it tends to be more excellent in oil film retention and evaporability at the lubrication site. The kinematic viscosity at 40 ° C. of the lubricating oil composition is preferably 250 mm 2 / s or less, more preferably 230 mm 2 / s or less, and still more preferably 210 mm 2 / s or less. When the kinematic viscosity at 40 ° C. is 260 mm 2 / s or less, it tends to be excellent in low-temperature fluidity and fuel economy.
潤滑油組成物の１００℃における動粘度は、好ましくは７．０ｍｍ２／ｓ以上、より好ましくは１０．０ｍｍ２／ｓ以上、更に好ましくは１３．０ｍｍ２／ｓ以上である。１００℃における動粘度が７．０ｍｍ２／ｓ以上であることによって、耐荷重性及び疲労寿命に優れる。潤滑油組成物の１００℃における動粘度は、好ましくは３５．０ｍｍ２／ｓ以下、より好ましくは２５．０ｍｍ２／ｓ以下、更に好ましくは２０．０ｍｍ２／ｓ以下である。１００℃における動粘度が３５．０ｍｍ２／ｓ以下であることによって、低温流動性及び省燃費性に優れる傾向にある。潤滑油組成物の１００℃における動粘度は、耐荷重性及び疲労寿命、並びに低温流動性及び省燃費性のすべてに優れる観点から、７．０ｍｍ２／ｓ以上３５．０ｍｍ２／ｓ以下であり、好ましくは、７．０ｍｍ２／ｓ以上２５．０ｍｍ２／ｓ以下、７．０ｍｍ２／ｓ以上２０．０ｍｍ２／ｓ以下、１０．０ｍｍ２／ｓ以上３５．０ｍｍ２／ｓ以下、１０．０ｍｍ２／ｓ以上２５．０ｍｍ２／ｓ以下、１０．０ｍｍ２／ｓ以上２０．０ｍｍ２／ｓ以下、１３．０ｍｍ２／ｓ以上３５．０ｍｍ２／ｓ以下、１３．０ｍｍ２／ｓ以上２５．０ｍｍ２／ｓ以下、又は１３．０ｍｍ２／ｓ以上２０．０ｍｍ２／ｓ以下である。Kinematic viscosity at 100 ° C. of the lubricating oil composition is preferably 7.0 mm 2 / s or more, more preferably 10.0 mm 2 / s or more, further preferably 13.0 mm 2 / s or more. When the kinematic viscosity at 100 ° C. is 7.0 mm 2 / s or more, the load resistance and fatigue life are excellent. Kinematic viscosity at 100 ° C. of the lubricating oil composition is preferably 35.0 mm 2 / s or less, more preferably 25.0 mm 2 / s, more preferably not more than 20.0 mm 2 / s. When the kinematic viscosity at 100 ° C. is 35.0 mm 2 / s or less, the low-temperature fluidity and fuel economy tend to be excellent. Kinematic viscosity at 100 ° C. of the lubricating oil composition, load-bearing and fatigue life, as well as from the viewpoint of excellent all cold flow and fuel economy, it is 7.0 mm 2 / s or more 35.0 mm 2 / s or less , preferably, 7.0 mm 2 / s or more 25.0 mm 2 / s or less, 7.0 mm 2 / s or more 20.0 mm 2 / s or less, 10.0 mm 2 / s or more 35.0 mm 2 / s or less, 10 .0mm 2 / s or more 25.0 mm 2 / s or less, 10.0 mm 2 / s or more 20.0 mm 2 / s or less, 13.0 mm 2 / s or more 35.0 mm 2 / s or less, 13.0 mm 2 / s or 25.0 mm 2 / s or less, or 13.0mm or less 2 / s or more 20.0 mm 2 / s.
潤滑油組成物中の硫黄元素含有量（ＣＳ）は、潤滑油組成物全量基準で、例えば１００００質量ｐｐｍ以上であってよく、また、３１０００質量ｐｐｍ以下であってよい。潤滑油組成物中の硫黄元素は、潤滑油基油や、（Ｃ），（Ｄ）成分等の添加剤に含まれる硫黄元素に由来する。The elemental sulfur content (C S ) in the lubricating oil composition may be, for example, 10000 mass ppm or more and 31000 mass ppm or less, based on the total amount of the lubricating oil composition. The elemental sulfur in the lubricating oil composition is derived from the elemental sulfur contained in the lubricating oil base oil and additives such as the components (C) and (D).
潤滑油組成物中のリン元素含有量（ＣＰ）は、潤滑油組成物全量基準で、例えば７００質量ｐｐｍ以上であってよく、また、２０００質量ｐｐｍ以下であってよい。潤滑油組成物中のリン元素は、リン系極圧剤等の添加剤に含まれるリン元素に由来する。The phosphorus element content (C P ) in the lubricating oil composition may be, for example, 700 mass ppm or more and 2000 mass ppm or less based on the total amount of the lubricating oil composition. The phosphorus element in the lubricating oil composition is derived from the phosphorus element contained in an additive such as a phosphorus extreme pressure agent.
潤滑油組成物中のホウ素元素含有量（ＣＢ）は、潤滑油組成物全量基準で、例えば３０質量ｐｐｍ以上であってよく、また、２００質量ｐｐｍ以下であってよい。潤滑油組成物中のホウ素元素は、ホウ素系無灰分散剤等の添加剤に含まれるホウ素元素に由来する。The boron element content (C B ) in the lubricating oil composition may be, for example, 30 mass ppm or more and 200 mass ppm or less, based on the total amount of the lubricating oil composition. The boron element in the lubricating oil composition is derived from the boron element contained in an additive such as a boron-based ashless dispersant.
潤滑油組成物において、硫黄元素、リン元素及びホウ素元素の各含有量（質量ｐｐｍ；潤滑油組成物全量基準）は、耐荷重性及び疲労寿命の点で更に優れる観点から、好ましくは下記式（７）を満たす。
０．０５≦ＣＳ／（ＣＰ×ＣＢ）≦０．５０ （７）In the lubricating oil composition, the contents of elemental sulfur, phosphorus element and boron element (mass ppm; based on the total amount of the lubricating oil composition) are preferably expressed by the following formula (from the viewpoint of further improved load resistance and fatigue life): 7) is satisfied.
0.05 ≦ C S / (C P × C B ) ≦ 0.50 (7)
ＣＳ／（ＣＰ×ＣＢ）は、耐荷重性の点で更に優れる観点からは、好ましくは０．０５以上、より好ましくは０．０７以上、更に好ましくは０．１２以上、特に好ましくは０．２５以上である。ＣＳ／（ＣＰ×ＣＢ）は、疲労寿命の点で更に優れる観点から、好ましくは０．５０以下、より好ましくは０．４５以下、更に好ましくは０．４０以下、特に好ましくは０．３５以下である。硫黄元素、リン元素及びホウ素元素の各含有量は、ＩＣＰ元素分析法によって測定することができる。C S / (C P × C B ) is preferably 0.05 or more, more preferably 0.07 or more, still more preferably 0.12 or more, and particularly preferably, from the viewpoint of further excellent load resistance. It is 0.25 or more. C S / (C P × C B ) is preferably 0.50 or less, more preferably 0.45 or less, still more preferably 0.40 or less, and particularly preferably 0.8, from the viewpoint of further improving fatigue life. 35 or less. Each content of sulfur element, phosphorus element, and boron element can be measured by ICP elemental analysis.
本実施形態に係る潤滑油組成物は、潤滑油の通常の用途に用いることができるが、ギヤ油用潤滑油組成物として好適に用いられる。より具体的には、潤滑油組成物は、好ましくは、自動車用の手動変速機、自動変速機、無段変速機若しくは最終減速機、又は工業用ギヤシステムに適用される。潤滑油組成物は、最終減速機油用潤滑油組成物として特に好適に用いられる。 Although the lubricating oil composition according to the present embodiment can be used for ordinary applications of lubricating oil, it is preferably used as a lubricating oil composition for gear oil. More specifically, the lubricating oil composition is preferably applied to a manual transmission for an automobile, an automatic transmission, a continuously variable transmission or a final reduction gear, or an industrial gear system. The lubricating oil composition is particularly preferably used as a final reduction gear oil lubricating oil composition.
以下、実施例に基づき本発明をより具体的に説明するが、本発明は以下の実施例に限定されるものではない。 EXAMPLES Hereinafter, although this invention is demonstrated more concretely based on an Example, this invention is not limited to a following example.
以下に示す潤滑油基油及び添加剤を用いて、潤滑油組成物を調製した。潤滑油組成物の組成を表１〜５に示す。 A lubricating oil composition was prepared using the following lubricating base oil and additives. The composition of the lubricating oil composition is shown in Tables 1-5.
［潤滑油基油］
Ａ−１：溶剤精製鉱油（ＧｒＩ、４０℃動粘度：２２．７ｍｍ２／ｓ、１００℃動粘度：４．４ｍｍ２／ｓ、粘度指数：１０２、硫黄分：０．１４質量％）
Ａ−２：溶剤精製鉱油（ＧｒＩ、４０℃動粘度：４７８．３ｍｍ２／ｓ、１００℃動粘度：３１．６ｍｍ２／ｓ、粘度指数：９７、硫黄分：０．４８質量％）
Ａ−３：溶剤精製鉱油（ＧｒＩ、４０℃動粘度：９５．１ｍｍ２／ｓ、１００℃動粘度：１０．９ｍｍ２／ｓ、粘度指数：９８、硫黄分：０．５８質量％）
Ａ−４：水素化精製鉱油（ＧｒＩＩＩ、４０℃動粘度：４６．７１ｍｍ２／ｓ、１００℃動粘度：７．５９５ｍｍ２／ｓ、粘度指数：１２９、硫黄分：＜１０質量ｐｐｍ）
Ａ−５：水素化精製鉱油（ＧｒＩＩＩ、４０℃動粘度：８．７３ｍｍ２／ｓ、１００℃動粘度：２．４３５ｍｍ２／ｓ、粘度指数：９８、硫黄分：＜１０質量ｐｐｍ）
Ａ−６：ポリαオレフィン（ＧｒＩＶ、４０℃動粘度：４０５ｍｍ２／ｓ、１００℃動粘度：５０ｍｍ２／ｓ、粘度指数：１８７、硫黄分：＜１０質量ｐｐｍ）
［添加剤］
Ｂ−１：分散型ポリ（メタ）アクリレート（重量平均分子量：４００００）
Ｂ−２：分散型ポリ（メタ）アクリレート（重量平均分子量：６００００）
Ｂ−３：分散型ポリ（メタ）アクリレート（重量平均分子量：１５００００）
ｂ−１：分散型ポリ（メタ）アクリレート（重量平均分子量：１００００）
ｂ−２：分散型ポリ（メタ）アクリレート（重量平均分子量：２５００００）
ｂ−３：非分散型ポリ（メタ）アクリレート（重量平均分子量：４００００）
ｂ−４：非分散型ポリ（メタ）アクリレート（重量平均分子量：１５００００）
Ｃ−１：２，５−ビス（アルキルジチオ）−１，３，４−チアジアゾール（硫黄元素含有量：３６．０質量％）
Ｃ−２：２，５−ビス（アルキルジチオ）−１，３，４−チアジアゾール（硫黄元素含有量：３４．７質量％）
Ｄ−１：ポリサルファイド（硫黄元素含有量：４５．８質量％）
Ｅ−１：オレイルアミン
Ｅ−２：２−エチルヘキシルアミン
Ｅ−３：ジステアリルアミン
Ｅ−４：オレイン酸アミド
Ｆ−１：ジ（ｎ−ブチル）フォスファイト（リン元素含有量：１５．５質量％）
Ｇ−１：ホウ素系分散剤１０質量％、アミン系酸化防止剤０．１質量％、リン酸エステル１５質量％、消泡剤０．５質量％、及び希釈油１０質量％を含有する添加剤パッケージ
Ｇ−２：ホウ素系分散剤１５質量％、アミン系酸化防止剤０．１質量％、リン酸エステル１７質量％、消泡剤０．５質量％、及び希釈油１０質量％を含有する添加剤パッケージ
Ｇ−３：ホウ素系分散剤０．１質量％、アミン系酸化防止剤０．１質量％、リン酸エステル１０質量％、消泡剤０．５質量％、及び希釈油５質量％を含有する添加剤パッケージ[Lubricant base oil]
A-1: Solvent refined mineral oil (GrI, 40 ° C. kinematic viscosity: 22.7 mm 2 / s, 100 ° C. kinematic viscosity: 4.4 mm 2 / s, viscosity index: 102, sulfur content: 0.14% by mass)
A-2: Solvent refined mineral oil (GrI, 40 ° C. kinematic viscosity: 478.3 mm 2 / s, 100 ° C. kinematic viscosity: 31.6 mm 2 / s, viscosity index: 97, sulfur content: 0.48% by mass)
A-3: Solvent refined mineral oil (GrI, 40 ° C. kinematic viscosity: 95.1 mm 2 / s, 100 ° C. kinematic viscosity: 10.9 mm 2 / s, viscosity index: 98, sulfur content: 0.58% by mass)
A-4: Hydrorefined mineral oil (GrIII, 40 ° C. kinematic viscosity: 46.71 mm 2 / s, 100 ° C. kinematic viscosity: 7.595 mm 2 / s, viscosity index: 129, sulfur content: <10 mass ppm)
A-5: Hydrorefined mineral oil (GrIII, 40 ° C. kinematic viscosity: 8.73 mm 2 / s, 100 ° C. kinematic viscosity: 2.435 mm 2 / s, viscosity index: 98, sulfur content: <10 mass ppm)
A-6: Poly α-olefin (GrIV, 40 ° C. kinematic viscosity: 405 mm 2 / s, 100 ° C. kinematic viscosity: 50 mm 2 / s, viscosity index: 187, sulfur content: <10 mass ppm)
[Additive]
B-1: Dispersed poly (meth) acrylate (weight average molecular weight: 40000)
B-2: Dispersed poly (meth) acrylate (weight average molecular weight: 60000)
B-3: Dispersed poly (meth) acrylate (weight average molecular weight: 150,000)
b-1: Dispersed poly (meth) acrylate (weight average molecular weight: 10,000)
b-2: Dispersed poly (meth) acrylate (weight average molecular weight: 250,000)
b-3: Non-dispersed poly (meth) acrylate (weight average molecular weight: 40000)
b-4: Non-dispersed poly (meth) acrylate (weight average molecular weight: 150,000)
C-1: 2,5-bis (alkyldithio) -1,3,4-thiadiazole (sulfur element content: 36.0% by mass)
C-2: 2,5-bis (alkyldithio) -1,3,4-thiadiazole (sulfur element content: 34.7% by mass)
D-1: Polysulfide (sulfur element content: 45.8% by mass)
E-1: oleylamine E-2: 2-ethylhexylamine E-3: distearylamine E-4: oleic acid amide F-1: di (n-butyl) phosphite (phosphorus element content: 15.5% by mass) )
G-1: an additive containing 10% by mass of a boron-based dispersant, 0.1% by mass of an amine-based antioxidant, 15% by mass of a phosphate ester, 0.5% by mass of an antifoaming agent, and 10% by mass of a diluent oil Package G-2: Addition containing boron-based dispersant 15% by weight, amine-based antioxidant 0.1% by weight, phosphate ester 17% by weight, antifoaming agent 0.5% by weight, and diluent oil 10% by weight Agent Package G-3: Boron-based dispersant 0.1% by weight, amine-based antioxidant 0.1% by weight, phosphate ester 10% by weight, antifoaming agent 0.5% by weight, and diluent oil 5% by weight Contains additive package
各潤滑油組成物について、以下に示す各評価試験を実施した。結果を表１〜５に示す。 Each lubricating oil composition was subjected to the following evaluation tests. The results are shown in Tables 1-5.
［耐荷重性試験］
ＡＳＴＭ Ｄ２５９６に準拠し、高速四球試験機を用いて、各潤滑油組成物の１８００ｒｐｍにおける融着荷重（ＷＬ）を測定した。本試験においては、融着荷重が大きい（例えば、３０８９Ｎ以上）ほど、耐荷重性に優れていることを意味する。[Load resistance test]
In accordance with ASTM D2596, a fusion load (WL) at 1800 rpm of each lubricating oil composition was measured using a high-speed four-ball tester. In this test, the larger the fusion load (for example, 3089 N or more), the better the load resistance.
［疲労寿命試験］
ユニスチール転がり疲労試験機を用いて、以下の条件でピッチングが発生するまでのギヤの疲労寿命を評価した。本試験においては、疲労寿命が長い（例えば、１０００分以上）ほど、疲労寿命に優れていることを意味する。
試験片：スラストニードル
面圧：２ＧＰａ
油温：１２０℃
回転数：１４１０ｒｐｍ[Fatigue life test]
Using a Unisteel rolling fatigue tester, the fatigue life of the gear until the occurrence of pitching was evaluated under the following conditions. In this test, the longer the fatigue life (for example, 1000 minutes or more), the better the fatigue life.
Test piece: Thrust needle Surface pressure: 2 GPa
Oil temperature: 120 ° C
Rotation speed: 1410rpm
［せん断安定性試験］
ＪＰＩ−５Ｓ−２９−８８に準拠し、以下の条件でソニックテストを行い、ソニックテスト前後の１００℃動粘度から粘度低下率を測定した。本試験においては、粘度低下率が小さい（例えば８％以下）ほど、せん断安定性に優れていることを意味する。
振動数：１０ｋＨｚ
振幅：２８μｍ
照射時間：１時間[Shear stability test]
In accordance with JPI-5S-29-88, a sonic test was performed under the following conditions, and the viscosity reduction rate was measured from the 100 ° C. kinematic viscosity before and after the sonic test. In this test, the smaller the viscosity reduction rate (for example, 8% or less), the better the shear stability.
Frequency: 10kHz
Amplitude: 28 μm
Irradiation time: 1 hour
［摩擦係数試験］
ＬＦＷ−１試験機を用いて、以下の条件で金属間摩擦係数を評価した。本試験においては、金属間摩擦係数が小さい（例えば、０．１５以下）ほど、摩擦特性に優れていることを意味する。
試験片：ブロックＨ６０、リングＳ１０
荷重：３１１３Ｎ
すべり速度：０．５ｍ／ｓ
油温：９０℃[Friction coefficient test]
Using an LFW-1 tester, the coefficient of friction between metals was evaluated under the following conditions. In this test, the smaller the friction coefficient between metals (for example, 0.15 or less), the better the friction characteristics.
Test piece: Block H60, ring S10
Load: 3113N
Sliding speed: 0.5m / s
Oil temperature: 90 ° C
Claims (4)
潤滑油組成物全量基準で、
１．０質量％以上１５．０質量％以下の、重量平均分子量が２万以上２０万以下である分散型ポリ（メタ）アクリレート化合物と、
０．０５質量％以上６．０質量％以下のチアジアゾール化合物と、
１．５質量％以上４．０質量％以下のポリサルファイド化合物と、
０．２質量％以上１．５質量％以下の摩擦調整剤と、
を含有し、
前記チアジアゾール化合物の含有量に対する前記ポリサルファイド化合物の含有量の質量比（ポリサルファイド化合物／チアジアゾール化合物）が０．４以上５０以下であり、
潤滑油組成物の１００℃における動粘度が７．０ｍｍ２／ｓ以上３５．０ｍｍ２／ｓ以下である、潤滑油組成物。Lubricating base oil,
Based on the total amount of the lubricating oil composition,
1.0 to 15.0% by weight of a dispersed poly (meth) acrylate compound having a weight average molecular weight of 20,000 to 200,000,
0.05% by weight or more and 6.0% by weight or less thiadiazole compound,
1.5% by mass or more and 4.0% by mass or less of a polysulfide compound;
0.2 wt% or more and 1.5 wt% or less of a friction modifier,
Containing
The mass ratio of the content of the polysulfide compound to the content of the thiadiazole compound (polysulfide compound / thiadiazole compound) is 0.4 to 50,
Kinematic viscosity at 100 ° C. of the lubricating oil composition is less than 7.0 mm 2 / s or more 35.0 mm 2 / s, the lubricating oil composition.
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| JP2000063870A (en) * | 1998-07-31 | 2000-02-29 | Chevron Chem Sa | Manual transmission lubricant borate salt-containing additive which gives stable and high synchromesh durability against hydrolysis |
| JP2004323850A (en) * | 2003-04-25 | 2004-11-18 | Chevron Oronite Co Llc | Gear oil composition reduced in copper corrosion |
| JP2013203947A (en) * | 2012-03-29 | 2013-10-07 | Jx Nippon Oil & Energy Corp | Lubricant composition |
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| JP4142060B2 (en) * | 2006-04-17 | 2008-08-27 | 新日本石油株式会社 | Lubricating oil composition for automatic transmission |
| JP5213310B2 (en) * | 2006-04-20 | 2013-06-19 | Ｊｘ日鉱日石エネルギー株式会社 | Lubricating oil composition |
| JP5393192B2 (en) * | 2009-02-24 | 2014-01-22 | Ｊｘ日鉱日石エネルギー株式会社 | Lubricating oil composition for gears |
| EP2573155B1 (en) * | 2009-06-04 | 2016-07-13 | JX Nippon Oil & Energy Corporation | Lubricating oil composition |
| JP5809582B2 (en) * | 2012-02-21 | 2015-11-11 | Ｊｘ日鉱日石エネルギー株式会社 | Lubricating oil composition |
| US9410106B2 (en) * | 2012-03-12 | 2016-08-09 | Idemitsu Kosan Co., Ltd. | Lubricating oil composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000063870A (en) * | 1998-07-31 | 2000-02-29 | Chevron Chem Sa | Manual transmission lubricant borate salt-containing additive which gives stable and high synchromesh durability against hydrolysis |
| JP2004323850A (en) * | 2003-04-25 | 2004-11-18 | Chevron Oronite Co Llc | Gear oil composition reduced in copper corrosion |
| JP2013203947A (en) * | 2012-03-29 | 2013-10-07 | Jx Nippon Oil & Energy Corp | Lubricant composition |
| JP2013203948A (en) * | 2012-03-29 | 2013-10-07 | Jx Nippon Oil & Energy Corp | Lubricant composition |
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| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |