JP5505923B2 - Lubricating oil composition and grease - Google Patents
Lubricating oil composition and grease Download PDFInfo
- Publication number
- JP5505923B2 JP5505923B2 JP2009021626A JP2009021626A JP5505923B2 JP 5505923 B2 JP5505923 B2 JP 5505923B2 JP 2009021626 A JP2009021626 A JP 2009021626A JP 2009021626 A JP2009021626 A JP 2009021626A JP 5505923 B2 JP5505923 B2 JP 5505923B2
- Authority
- JP
- Japan
- Prior art keywords
- acid
- lubricating oil
- oil composition
- ester
- antioxidant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000010687 lubricating oil Substances 0.000 title claims description 29
- 239000000203 mixture Substances 0.000 title claims description 28
- 239000004519 grease Substances 0.000 title claims description 13
- 150000002148 esters Chemical class 0.000 claims description 29
- 239000003963 antioxidant agent Substances 0.000 claims description 23
- 230000003078 antioxidant effect Effects 0.000 claims description 22
- 239000003921 oil Substances 0.000 claims description 22
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 150000001412 amines Chemical class 0.000 claims description 11
- 150000005690 diesters Chemical class 0.000 claims description 10
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 claims description 8
- 239000002562 thickening agent Substances 0.000 claims description 6
- OJRJDENLRJHEJO-UHFFFAOYSA-N 2,4-diethylpentane-1,5-diol Chemical compound CCC(CO)CC(CC)CO OJRJDENLRJHEJO-UHFFFAOYSA-N 0.000 claims description 5
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical class C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 claims description 5
- VJHINFRRDQUWOJ-UHFFFAOYSA-N dioctyl sebacate Chemical compound CCCCC(CC)COC(=O)CCCCCCCCC(=O)OCC(CC)CCCC VJHINFRRDQUWOJ-UHFFFAOYSA-N 0.000 claims description 5
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 3
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 description 17
- 238000001704 evaporation Methods 0.000 description 17
- -1 DOA and DOS Chemical class 0.000 description 13
- 125000001931 aliphatic group Chemical group 0.000 description 13
- 230000000694 effects Effects 0.000 description 10
- 239000002530 phenolic antioxidant Substances 0.000 description 10
- 125000004432 carbon atom Chemical group C* 0.000 description 8
- 239000002199 base oil Substances 0.000 description 7
- OVBFMEVBMNZIBR-UHFFFAOYSA-N 2-methylvaleric acid Chemical compound CCCC(C)C(O)=O OVBFMEVBMNZIBR-UHFFFAOYSA-N 0.000 description 6
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 6
- XBDQKXXYIPTUBI-UHFFFAOYSA-N Propionic acid Chemical compound CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 6
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 6
- KEMQGTRYUADPNZ-UHFFFAOYSA-N heptadecanoic acid Chemical compound CCCCCCCCCCCCCCCCC(O)=O KEMQGTRYUADPNZ-UHFFFAOYSA-N 0.000 description 6
- MNWFXJYAOYHMED-UHFFFAOYSA-N heptanoic acid Chemical compound CCCCCCC(O)=O MNWFXJYAOYHMED-UHFFFAOYSA-N 0.000 description 6
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 6
- FBUKVWPVBMHYJY-UHFFFAOYSA-N nonanoic acid Chemical compound CCCCCCCCC(O)=O FBUKVWPVBMHYJY-UHFFFAOYSA-N 0.000 description 6
- WQEPLUUGTLDZJY-UHFFFAOYSA-N pentadecanoic acid Chemical compound CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 6
- 229920006395 saturated elastomer Polymers 0.000 description 6
- TUNFSRHWOTWDNC-UHFFFAOYSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCCC(O)=O TUNFSRHWOTWDNC-UHFFFAOYSA-N 0.000 description 6
- SZHOJFHSIKHZHA-UHFFFAOYSA-N tridecanoic acid Chemical compound CCCCCCCCCCCCC(O)=O SZHOJFHSIKHZHA-UHFFFAOYSA-N 0.000 description 6
- ZDPHROOEEOARMN-UHFFFAOYSA-N undecanoic acid Chemical compound CCCCCCCCCCC(O)=O ZDPHROOEEOARMN-UHFFFAOYSA-N 0.000 description 6
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 150000002763 monocarboxylic acids Chemical class 0.000 description 5
- 229920005862 polyol Polymers 0.000 description 5
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 4
- BBMCTIGTTCKYKF-UHFFFAOYSA-N 1-heptanol Chemical compound CCCCCCCO BBMCTIGTTCKYKF-UHFFFAOYSA-N 0.000 description 4
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 4
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 4
- ACIAHEMYLLBZOI-ZZXKWVIFSA-N Unsaturated alcohol Chemical compound CC\C(CO)=C/C ACIAHEMYLLBZOI-ZZXKWVIFSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 4
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 4
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 4
- 239000003112 inhibitor Substances 0.000 description 4
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 4
- CVKMFSAVYPAZTQ-UHFFFAOYSA-N 2-methylhexanoic acid Chemical compound CCCCC(C)C(O)=O CVKMFSAVYPAZTQ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Substances CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 229960000583 acetic acid Drugs 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 3
- BAZMYXGARXYAEQ-UHFFFAOYSA-N alpha-ethyl valeric acid Chemical compound CCCC(CC)C(O)=O BAZMYXGARXYAEQ-UHFFFAOYSA-N 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 3
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 3
- 150000003077 polyols Chemical class 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- OBETXYAYXDNJHR-SSDOTTSWSA-M (2r)-2-ethylhexanoate Chemical compound CCCC[C@@H](CC)C([O-])=O OBETXYAYXDNJHR-SSDOTTSWSA-M 0.000 description 2
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 description 2
- JXNPEDYJTDQORS-HZJYTTRNSA-N (9Z,12Z)-octadecadien-1-ol Chemical compound CCCCC\C=C/C\C=C/CCCCCCCCO JXNPEDYJTDQORS-HZJYTTRNSA-N 0.000 description 2
- IKYKEVDKGZYRMQ-PDBXOOCHSA-N (9Z,12Z,15Z)-octadecatrien-1-ol Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCCO IKYKEVDKGZYRMQ-PDBXOOCHSA-N 0.000 description 2
- 239000001077 (E)-undec-2-en-1-ol Substances 0.000 description 2
- NMNAESABLXLQEY-WUKNDPDISA-N (e)-octadec-2-en-1-ol Chemical compound CCCCCCCCCCCCCCC\C=C\CO NMNAESABLXLQEY-WUKNDPDISA-N 0.000 description 2
- UNJNVKPKKZTPPR-OUKQBFOZSA-N (e)-tetradec-2-en-1-ol Chemical compound CCCCCCCCCCC\C=C\CO UNJNVKPKKZTPPR-OUKQBFOZSA-N 0.000 description 2
- UNVGBIALRHLALK-UHFFFAOYSA-N 1,5-Hexanediol Chemical compound CC(O)CCCCO UNVGBIALRHLALK-UHFFFAOYSA-N 0.000 description 2
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 2
- GIEMHYCMBGELGY-UHFFFAOYSA-N 10-undecen-1-ol Chemical compound OCCCCCCCCCC=C GIEMHYCMBGELGY-UHFFFAOYSA-N 0.000 description 2
- SKBIQKQBLQHOSU-MDZDMXLPSA-N 2-Undecen-1-ol Chemical compound CCCCCCCC\C=C\CO SKBIQKQBLQHOSU-MDZDMXLPSA-N 0.000 description 2
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000001361 adipic acid Substances 0.000 description 2
- 235000011037 adipic acid Nutrition 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Natural products CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 description 2
- SIIVGPQREKVCOP-UHFFFAOYSA-N but-1-en-1-ol Chemical compound CCC=CO SIIVGPQREKVCOP-UHFFFAOYSA-N 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- QOPYYRPCXHTOQZ-UHFFFAOYSA-N dec-2-en-1-ol Chemical compound CCCCCCCC=CCO QOPYYRPCXHTOQZ-UHFFFAOYSA-N 0.000 description 2
- IVJLSPVMJRCRPF-UHFFFAOYSA-N hexadec-15-en-1-ol Chemical compound OCCCCCCCCCCCCCCC=C IVJLSPVMJRCRPF-UHFFFAOYSA-N 0.000 description 2
- DCAYPVUWAIABOU-UHFFFAOYSA-N hexadecane Chemical compound CCCCCCCCCCCCCCCC DCAYPVUWAIABOU-UHFFFAOYSA-N 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- JXNPEDYJTDQORS-UHFFFAOYSA-N linoleyl alcohol Natural products CCCCCC=CCC=CCCCCCCCCO JXNPEDYJTDQORS-UHFFFAOYSA-N 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 229940055577 oleyl alcohol Drugs 0.000 description 2
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 description 2
- GZIKTBWNIYAWLH-UHFFFAOYSA-N pentadec-2-en-1-ol Chemical compound CCCCCCCCCCCCC=CCO GZIKTBWNIYAWLH-UHFFFAOYSA-N 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- AUSVLRIDVGJNPA-UHFFFAOYSA-N tridec-12-en-1-ol Chemical compound OCCCCCCCCCCCC=C AUSVLRIDVGJNPA-UHFFFAOYSA-N 0.000 description 2
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 description 1
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 1
- ALVZNPYWJMLXKV-UHFFFAOYSA-N 1,9-Nonanediol Chemical compound OCCCCCCCCCO ALVZNPYWJMLXKV-UHFFFAOYSA-N 0.000 description 1
- PQSMEVPHTJECDZ-UHFFFAOYSA-N 2,3-dimethylheptan-2-ol Chemical compound CCCCC(C)C(C)(C)O PQSMEVPHTJECDZ-UHFFFAOYSA-N 0.000 description 1
- RWLALWYNXFYRGW-UHFFFAOYSA-N 2-Ethyl-1,3-hexanediol Chemical compound CCCC(O)C(CC)CO RWLALWYNXFYRGW-UHFFFAOYSA-N 0.000 description 1
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 1
- MWCBGWLCXSUTHK-UHFFFAOYSA-N 2-methylbutane-1,4-diol Chemical compound OCC(C)CCO MWCBGWLCXSUTHK-UHFFFAOYSA-N 0.000 description 1
- BENPUORLYFCUJH-UHFFFAOYSA-N 2-methylheptane-1,7-diol Chemical compound OCC(C)CCCCCO BENPUORLYFCUJH-UHFFFAOYSA-N 0.000 description 1
- DYHGIZFXHVQIEA-UHFFFAOYSA-N 2-methylhexane-1,6-diol Chemical compound OCC(C)CCCCO DYHGIZFXHVQIEA-UHFFFAOYSA-N 0.000 description 1
- GQSJKULLLUNPMA-UHFFFAOYSA-N 2-methylnonane-1,9-diol Chemical compound OCC(C)CCCCCCCO GQSJKULLLUNPMA-UHFFFAOYSA-N 0.000 description 1
- SDQROPCSKIYYAV-UHFFFAOYSA-N 2-methyloctane-1,8-diol Chemical compound OCC(C)CCCCCCO SDQROPCSKIYYAV-UHFFFAOYSA-N 0.000 description 1
- AAAWJUMVTPNRDT-UHFFFAOYSA-N 2-methylpentane-1,5-diol Chemical compound OCC(C)CCCO AAAWJUMVTPNRDT-UHFFFAOYSA-N 0.000 description 1
- QWGRWMMWNDWRQN-UHFFFAOYSA-N 2-methylpropane-1,3-diol Chemical compound OCC(C)CO QWGRWMMWNDWRQN-UHFFFAOYSA-N 0.000 description 1
- KCNMSJPBWBWPAF-UHFFFAOYSA-N 3-methylheptane-1,7-diol Chemical compound OCCC(C)CCCCO KCNMSJPBWBWPAF-UHFFFAOYSA-N 0.000 description 1
- SQAJRDHPLTWZQT-UHFFFAOYSA-N 3-methylhexane-1,6-diol Chemical compound OCCC(C)CCCO SQAJRDHPLTWZQT-UHFFFAOYSA-N 0.000 description 1
- CLILDWHSGQDKNC-UHFFFAOYSA-N 3-methylnonane-1,9-diol Chemical compound OCCC(C)CCCCCCO CLILDWHSGQDKNC-UHFFFAOYSA-N 0.000 description 1
- ACWBYVIQVCTYBJ-UHFFFAOYSA-N 3-methyloctane-1,8-diol Chemical compound OCCC(C)CCCCCO ACWBYVIQVCTYBJ-UHFFFAOYSA-N 0.000 description 1
- SXFJDZNJHVPHPH-UHFFFAOYSA-N 3-methylpentane-1,5-diol Chemical compound OCCC(C)CCO SXFJDZNJHVPHPH-UHFFFAOYSA-N 0.000 description 1
- LAIUFBWHERIJIH-UHFFFAOYSA-N 3MC7 Natural products CCCCC(C)CC LAIUFBWHERIJIH-UHFFFAOYSA-N 0.000 description 1
- ZFHZIIQASZBGGD-UHFFFAOYSA-N 4-methylheptane-1,7-diol Chemical compound OCCCC(C)CCCO ZFHZIIQASZBGGD-UHFFFAOYSA-N 0.000 description 1
- AQYPYBYQBJVBGF-UHFFFAOYSA-N 4-methylnonane-1,9-diol Chemical compound OCCCC(C)CCCCCO AQYPYBYQBJVBGF-UHFFFAOYSA-N 0.000 description 1
- DMIUMZKUIYPNLB-UHFFFAOYSA-N 4-methyloctane-1,8-diol Chemical compound OCCCC(C)CCCCO DMIUMZKUIYPNLB-UHFFFAOYSA-N 0.000 description 1
- KGRPXOWQNSNDJY-UHFFFAOYSA-N 5-methylnonane-1,9-diol Chemical compound OCCCCC(C)CCCCO KGRPXOWQNSNDJY-UHFFFAOYSA-N 0.000 description 1
- UUNBFTCKFYBASS-UHFFFAOYSA-N C(CCCCCCC)C=1C(=C(C=CC1)NC1=CC=CC=C1)CCCCCCCC Chemical compound C(CCCCCCC)C=1C(=C(C=CC1)NC1=CC=CC=C1)CCCCCCCC UUNBFTCKFYBASS-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- ALQSHHUCVQOPAS-UHFFFAOYSA-N Pentane-1,5-diol Chemical compound OCCCCCO ALQSHHUCVQOPAS-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- FOTKYAAJKYLFFN-UHFFFAOYSA-N decane-1,10-diol Chemical compound OCCCCCCCCCCO FOTKYAAJKYLFFN-UHFFFAOYSA-N 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- UQGLNXPQGUMNRU-UHFFFAOYSA-N heptane-1,6-diol Chemical compound CC(O)CCCCCO UQGLNXPQGUMNRU-UHFFFAOYSA-N 0.000 description 1
- SXCBDZAEHILGLM-UHFFFAOYSA-N heptane-1,7-diol Chemical compound OCCCCCCCO SXCBDZAEHILGLM-UHFFFAOYSA-N 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000006078 metal deactivator Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 1
- WBSRHBNFOLDTGU-UHFFFAOYSA-N nonane-1,8-diol Chemical compound CC(O)CCCCCCCO WBSRHBNFOLDTGU-UHFFFAOYSA-N 0.000 description 1
- QUADBKCRXGFGAX-UHFFFAOYSA-N octane-1,7-diol Chemical compound CC(O)CCCCCCO QUADBKCRXGFGAX-UHFFFAOYSA-N 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- GLOBUAZSRIOKLN-UHFFFAOYSA-N pentane-1,4-diol Chemical compound CC(O)CCCO GLOBUAZSRIOKLN-UHFFFAOYSA-N 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920013639 polyalphaolefin Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 235000013772 propylene glycol Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Lubricants (AREA)
Description
本発明は、高温条件下で長期間にわたって優れた低揮発性を有する潤滑油組成物及びこれを使用したグリースに関する。 The present invention relates to a lubricating oil composition having excellent low volatility over a long period of time under high temperature conditions and a grease using the same.
潤滑油基油には、高粘度指数、良好な低温流動性、優れた熱安定性、低揮発性等の性質が求められている。従来、潤滑油基油として種々のものが提案されているが、上記性質のすべてを充分に満足するものは知られていない。例えば、1−デセンの重合体を水素化処理して得られるポリ−α−オレフィンは、高温安定性に優れるが、低温時の粘度上昇が大きく、また低温時の流動抵抗が大きく、低温流動性を満足しない。アジピン酸やセバシン酸の2−エチルヘキシルエステルであるDOAやDOS等のエステルも潤滑油基油として使用されてきた。しかし、使用環境が高温などの厳しい用途では揮発量が多くなるなどの問題が明らかになってきた。ネオペンチルグリコールやペンタエリスリトール等のアルコールの、β位に水素を持たないヒンダードエステルが熱安定性に優れることから、高温などの厳しい環境での使用にはほぼ耐えるものが提案されているが、DOA、DOSと比較して流動点が高く低温流動性を満足しない。
上記課題を解決する手段として、脂肪族2価アルコールとして2,4−ジエチル−1,5−ペンタンジオールを、飽和脂肪族モノカルボン酸としてn−オクチル酸を使用した飽和脂肪族モノカルボン酸ジエステルにより、粘度指数が大きく高温での潤滑性に優れ、流動点が低く低温流動性に優れ、蒸発減量が少なく熱安定性が高い潤滑基油が報告されている(特許文献1参照)。しかし、150℃以上の高温条件下において長期間にわたり蒸発減量を抑制するには、エステル単体での達成は困難であった。
Lubricant base oils are required to have properties such as a high viscosity index, good low-temperature fluidity, excellent thermal stability, and low volatility. Conventionally, various types of lubricating base oils have been proposed, but none that sufficiently satisfy all of the above properties is known. For example, a poly-α-olefin obtained by hydrotreating a 1-decene polymer is excellent in high-temperature stability, but has a large viscosity increase at low temperatures, a large flow resistance at low temperatures, and low-temperature fluidity. Not satisfied. Esters such as DOA and DOS, which are 2-ethylhexyl esters of adipic acid and sebacic acid, have also been used as lubricating base oils. However, problems such as an increase in the amount of volatilization have become apparent in severe applications such as high temperatures. Alcohols such as neopentyl glycol and pentaerythritol have been proposed that are almost resistant to use in harsh environments such as high temperatures because hindered esters that do not have hydrogen at the β-position are excellent in thermal stability. Compared to DOA and DOS, the pour point is high and low temperature fluidity is not satisfied.
As means for solving the above problems, saturated aliphatic monocarboxylic acid diesters using 2,4-diethyl-1,5-pentanediol as an aliphatic dihydric alcohol and n-octylic acid as a saturated aliphatic monocarboxylic acid are used. A lubricating base oil having a large viscosity index, excellent lubricity at high temperatures, low pour point, excellent low temperature fluidity, low evaporation loss and high thermal stability has been reported (see Patent Document 1). However, in order to suppress the evaporation loss over a long period of time under a high temperature condition of 150 ° C. or higher, it has been difficult to achieve the ester alone.
したがって、本発明の目的は、高温条件下で長期間にわたって優れた低揮発性を有する潤滑油組成物を提供することである。
本発明の他の目的は、上記潤滑油組成物と増ちょう剤を含有するグリースを提供することである。
本発明の他の目的は、上記潤滑油組成物を使用した流体軸受油又は含浸軸受油を提供することである。
Accordingly, an object of the present invention is to provide a lubricating oil composition having excellent low volatility over a long period of time under high temperature conditions.
Another object of the present invention is to provide a grease containing the lubricating oil composition and a thickener.
Another object of the present invention is to provide a fluid bearing oil or an impregnated bearing oil using the above lubricating oil composition.
本発明者は、特定の粘度を有するエステル系合成油に特定のフェノール系酸化防止剤とアミン系酸化防止剤を併用する事により、高温条件下での潤滑油の揮発性を低減できることを見出し、本発明を完成するに至った。本発明は以下に示す潤滑油組成物及びグリースを提供するものである。
1.40℃の動粘度が7.0〜35.0mm2/sのエステル系合成油に、3,5−ジ−tert−ブチル−4−ヒドロキシフェニル基を少なくとも1つ含むフェノール系酸化防止剤0.1〜5.0質量%と、アルキル基が炭素数1〜16の直鎖又は分岐鎖であるアルキル化フェニル−α−ナフチルアミン系酸化防止剤0.1〜5.0質量%とを添加したことを特徴とする潤滑油組成物。
2.前記フェノール系酸化防止剤が、オクタデシル3−(3,5−ジ−tert−ブチル−4−ヒドロキシフェニル)プロピオネートであり、アミン系酸化防止剤が、オクチル化フェニル−α−ナフチルアミンであることを特徴とする上記1記載の潤滑油組成物。
3.前記エステル系合成油がジアルコールとカルボン酸のジエステル又はジカルボン酸とアルコールのジエステルであることを特徴とする上記1又は2記載の潤滑油組成物。
4.前記エステル系合成油が2,4−ジエチル−1,5−ペンタンジオールとn−オクチル酸のジエステル又はジ−2−エチルヘキシルセバケートであることを特徴とする上記1〜3のいずれか1項記載の潤滑油組成物。
5.上記1〜4のいずれか1項記載の潤滑油組成物と増ちょう剤を含有するグリース。
6.上記1〜4のいずれか1項記載の潤滑油組成物を使用した流体軸受油又は含浸軸受油。
The present inventor has found that by using a specific phenolic antioxidant and an amine antioxidant together with an ester synthetic oil having a specific viscosity, the volatility of the lubricating oil under high temperature conditions can be reduced, The present invention has been completed. The present invention provides the following lubricating oil composition and grease.
1. A phenolic antioxidant containing at least one 3,5-di-tert-butyl-4-hydroxyphenyl group in an ester synthetic oil having a kinematic viscosity at 1.40 ° C. of 7.0 to 35.0 mm 2 / s 0.1 to 5.0% by mass and 0.1 to 5.0% by mass of an alkylated phenyl-α-naphthylamine-based antioxidant whose alkyl group is a straight chain or branched chain having 1 to 16 carbon atoms A lubricating oil composition characterized in that
2. The phenolic antioxidant is octadecyl 3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate, and the amine antioxidant is octylated phenyl-α-naphthylamine. 2. The lubricating oil composition as described in 1 above.
3. The lubricating oil composition as described in 1 or 2 above, wherein the ester-based synthetic oil is a diester of a dialcohol and a carboxylic acid or a diester of a dicarboxylic acid and an alcohol.
4. Any one of the above 1 to 3, wherein the ester synthetic oil is a diester of 2,4-diethyl-1,5-pentanediol and n-octylic acid or di-2-ethylhexyl sebacate. The lubricating oil composition according to item.
5. A grease containing the lubricating oil composition according to any one of 1 to 4 above and a thickener.
6. Fluid bearing oil or impregnated bearing oil using the lubricating oil composition according to any one of 1 to 4 above.
エステル系合成油にフェノール系酸化防止剤とアミン系酸化防止剤を組合せて添加する事により、高温条件下で長期間にわたって優れた低揮発性を有する潤滑油組成物が得られる。本発明の潤滑油組成物は、厳しい温度条件下で長期使用されるグリースの基油、又は、高温から低温まで温度変化が激しい状況下で長期使用される含浸軸受又は流体軸受用の潤滑油組成物として好適である。 By adding a combination of a phenolic antioxidant and an amine antioxidant to the ester synthetic oil, a lubricating oil composition having excellent low volatility over a long period of time under high temperature conditions can be obtained. The lubricating oil composition of the present invention is a base oil for grease used for a long time under severe temperature conditions, or a lubricating oil composition for impregnated bearings or fluid bearings used for a long time under conditions where temperature change is severe from high temperature to low temperature. It is suitable as a product.
本発明の潤滑油組成物において基油として使用する40℃の動粘度が7.0〜35.0mm2/sのエステル系合成油としては、モノエステル、ジエステル、ポリオールエステル、コンプレックスエステルなど全てのエステル系合成油が挙げられる。これらのエステル系合成油は、1種または2種以上を適宜配合して使用することも可能である。
40℃の動粘度が7.0mm2/s未満では、高温条件下における蒸発減量が大きく、一方、35.0mm2/sを超えると低温時の粘度増加が大きく低温性に劣るという傾向がある。
高温条件下での蒸発減量を低減させ、耐熱安定性を向上させるため、本発明の潤滑油組成物には、3,5−ジ−tert−ブチル−4−ヒドロキシフェニル基を少なくとも1つ含むフェノール系酸化防止剤と、アルキル基が炭素数1〜16の直鎖又は分岐鎖であるアルキル化フェニル−α−ナフチルアミン系酸化防止剤とが添加されている。成分の配合割合は、潤滑油組成物(潤滑油と酸化防止剤の合計量)に対して、それぞれ0.1〜5.0質量%である。また、この配合割合は、好ましくは0.5〜5.0質量%、さらに好ましくは0.5〜3.0質量%である。0.5質量%未満では十分な蒸発減量の低減効果が得られないことがあり、5.0質量%を超えても効果が飽和し、不経済である。
Examples of ester-based synthetic oils having a kinematic viscosity at 40 ° C. of 7.0 to 35.0 mm 2 / s used as a base oil in the lubricating oil composition of the present invention include monoesters, diesters, polyol esters, and complex esters. An ester synthetic oil is mentioned. These ester synthetic oils can be used alone or in combination of two or more.
When the kinematic viscosity at 40 ° C. is less than 7.0 mm 2 / s, the evaporation loss under high temperature conditions is large. On the other hand, when it exceeds 35.0 mm 2 / s, there is a tendency that the increase in viscosity at low temperature is large and the low temperature property is poor. .
In order to reduce evaporation loss under high temperature conditions and improve heat resistance stability, the lubricating oil composition of the present invention includes phenol containing at least one 3,5-di-tert-butyl-4-hydroxyphenyl group. A system antioxidant and an alkylated phenyl-α-naphthylamine antioxidant whose alkyl group is a straight chain or branched chain having 1 to 16 carbon atoms are added. The blending ratio of the components is 0.1 to 5.0% by mass with respect to the lubricating oil composition (total amount of lubricating oil and antioxidant). Moreover, this compounding ratio becomes like this. Preferably it is 0.5-5.0 mass%, More preferably, it is 0.5-3.0 mass%. If the amount is less than 0.5% by mass, a sufficient effect of reducing the evaporation loss may not be obtained. If the amount exceeds 5.0% by mass, the effect is saturated, which is uneconomical.
本発明の潤滑油組成物の基油として使用するエステル系合成油の例としては以下のものが挙げられる。
モノエステル
炭素数2〜36の脂肪族直鎖状又は分岐鎖状モノカルボン酸と炭素数2〜22の脂肪族直鎖状又は分岐鎖状の飽和もしくは不飽和アルコールとのエステル。
具体例:n−エタン酸、n−プロパン酸、n−ブタン酸、n−ペンタン酸、2−メチルペンタン酸、2−エチルペンタン酸、n−ヘキサン酸、2−メチルヘキサン酸、2−エチルヘキサン酸、n−ヘプタン酸、n−オクタン酸、n−ノナン酸、n−デカン酸、n−ウンデカン酸、n−ドデカン酸、n−トリデカン酸、n−テトラデカン酸、n−ペンタデカン酸、n−ヘキサデカン酸、n−ヘプタデカン酸、n−オクタデカン酸等の炭素数2〜36の脂肪族直鎖状又は分岐鎖状モノカルボン酸とエタノール、プロパノール、ブタノール、ペンタノール、ヘキサノール、2−エチルヘキサノール、3,5,5−トリメチルヘキサノール、ヘプタノ−ル、オクタノール等の炭素数2〜22の脂肪族直鎖状又は分岐鎖状の飽和もしくは不飽和アルコールとのエステル。
不飽和アルコールの例としては、以下のものが挙げられる。
ビニルアルコール、2−プロペン−1−オール、2−デセン−1−オール、2−ウンデセン−1−オール、2−テトラデセン−1−オール、2−ペンタデセン−1−オール、2−ヘキサデセン−1−オール、2−ヘプタデセン−1−オール、2−オクタデセン−1−オール、10−ウンデセン−1−オール、11−ドデセン−1−オール、12−トリデセン−1−オール、15−ヘキサデセン−1−オール、ブテノール、オレイルアルコール、エライジルアルコール、リノレイルアルコール、リノレニルアルコール。
The following are mentioned as an example of the ester type synthetic oil used as a base oil of the lubricating oil composition of this invention.
Monoester An ester of an aliphatic linear or branched monocarboxylic acid having 2 to 36 carbon atoms and an aliphatic linear or branched saturated or unsaturated alcohol having 2 to 22 carbon atoms.
Specific examples: n-ethanoic acid, n-propanoic acid, n-butanoic acid, n-pentanoic acid, 2-methylpentanoic acid, 2-ethylpentanoic acid, n-hexanoic acid, 2-methylhexanoic acid, 2-ethylhexane Acid, n-heptanoic acid, n-octanoic acid, n-nonanoic acid, n-decanoic acid, n-undecanoic acid, n-dodecanoic acid, n-tridecanoic acid, n-tetradecanoic acid, n-pentadecanoic acid, n-hexadecane C2-C36 aliphatic linear or branched monocarboxylic acid such as acid, n-heptadecanoic acid and n-octadecanoic acid and ethanol, propanol, butanol, pentanol, hexanol, 2-ethylhexanol, 3, C2-C22 aliphatic linear or branched saturated or unsaturated alcohols such as 5,5-trimethylhexanol, heptanol, octanol and the like Esters of.
The following are mentioned as an example of unsaturated alcohol.
Vinyl alcohol, 2-propen-1-ol, 2-decene-1-ol, 2-undecen-1-ol, 2-tetradecene-1-ol, 2-pentadecene-1-ol, 2-hexadecene-1-ol 2-heptadecen-1-ol, 2-octadecene-1-ol, 10-undecen-1-ol, 11-dodesen-1-ol, 12-tridecen-1-ol, 15-hexadecene-1-ol, butenol Oleyl alcohol, elidyl alcohol, linoleyl alcohol, linolenyl alcohol.
ジエステル
炭素数2〜20の脂肪族直鎖状又は分岐鎖状ジアルコールと炭素数2〜36の脂肪族直鎖状又は分岐鎖状モノカルボン酸とのエステル。
具体例:エチレングリコール、1,2−プロパンジオール、1,3−プロパンジオール、2−メチル−1,3−プロパンジオール、1,3−ブタンジオール、1,4−ブタンジオール、2−メチル−1,4−ブタンジオール、1,4−ペンタンジオール、1,5−ペンタンジオール、2−メチル−1,5−ペンタンジオール、3−メチル−1,5−ペンタンジオール、1,5−ヘキサンジオール、1,6−ヘキサンジオール、2−メチル−1,6−ヘキサンジオール、3−メチル−1,6−ヘキサンジオール、1,6−ヘプタンジオール、1,7−ヘプタンジオール、2−メチル−1,7−ヘプタンジオール、3−メチル−1,7−ヘプタンジオール、4−メチル−1,7−ヘプタンジオール、1,7−オクタンジオール、1,8−オクタンジオール、2−メチル−1,8−オクタンジオール、3−メチル−1,8−オクタンジオール、4−メチル−1,8−オクタンジオール、1,8−ノナンジオール、1,9−ノナンジオール、2−メチル−1,9−ノナンジオール、3−メチル−1,9−ノナンジオール、4−メチル−1,9−ノナンジオール、5−メチル−1,9−ノナンジオール、1,10−デカンジオール、2−エチル−1,3−ヘキサンジオール、2,4−ジエチル−1,5−ペンタンジオール等の炭素数2〜20の脂肪族直鎖状又は分岐鎖状ジアルコールと、n−エタン酸、n−プロパン酸、n−ブタン酸、n−ペンタン酸、2−メチルペンタン酸、2−エチルペンタン酸、n−ヘキサン酸、2−メチルヘキサン酸、2−エチルヘキサン酸、n−ヘプタン酸、n−オクタン酸、n−ノナン酸、n−デカン酸、n−ウンデカン酸、n−ドデカン酸、n−トリデカン酸、n−テトラデカン酸、n−ペンタデカン酸、n−ヘキサデカン酸、n−ヘプタデカン酸、n−オクタデカン酸等の炭素数2〜36の脂肪族直鎖状又は分岐鎖状モノカルボン酸とのエステル。
Esters of aliphatic linear or branched dialcohols and aliphatic linear or branched monocarboxylic acids having a carbon number of 2 to 36 diesters C2-20.
Specific examples: ethylene glycol, 1,2-propanediol, 1,3-propanediol, 2-methyl-1,3-propanediol, 1,3-butanediol, 1,4-butanediol, 2-methyl-1 , 4-butanediol, 1,4-pentanediol, 1,5-pentanediol, 2-methyl-1,5-pentanediol, 3-methyl-1,5-pentanediol, 1,5-hexanediol, 1 , 6-hexanediol, 2-methyl-1,6-hexanediol, 3-methyl-1,6-hexanediol, 1,6-heptanediol, 1,7-heptanediol, 2-methyl-1,7- Heptanediol, 3-methyl-1,7-heptanediol, 4-methyl-1,7-heptanediol, 1,7-octanediol, 1,8-octane All, 2-methyl-1,8-octanediol, 3-methyl-1,8-octanediol, 4-methyl-1,8-octanediol, 1,8-nonanediol, 1,9-nonanediol, 2 -Methyl-1,9-nonanediol, 3-methyl-1,9-nonanediol, 4-methyl-1,9-nonanediol, 5-methyl-1,9-nonanediol, 1,10-decanediol, C2-C20 aliphatic linear or branched dialcohols such as 2-ethyl-1,3-hexanediol, 2,4-diethyl-1,5-pentanediol, n-ethanoic acid, n -Propanoic acid, n-butanoic acid, n-pentanoic acid, 2-methylpentanoic acid, 2-ethylpentanoic acid, n-hexanoic acid, 2-methylhexanoic acid, 2-ethylhexanoic acid, n-heptanoic acid, n- Stannic acid, n-nonanoic acid, n-decanoic acid, n-undecanoic acid, n-dodecanoic acid, n-tridecanoic acid, n-tetradecanoic acid, n-pentadecanoic acid, n-hexadecanoic acid, n-heptadecanoic acid, n- Esters with aliphatic straight-chain or branched monocarboxylic acids having 2 to 36 carbon atoms such as octadecanoic acid.
脂肪族直鎖状ジカルボン酸と炭素数2〜20の脂肪族直鎖状又は分岐鎖状の飽和もしくは不飽和アルコールとのエステル。
具体例:シュウ酸、コハク酸、アジピン酸、アゼライン酸、セバシン酸等の脂肪族直鎖状ジカルボン酸と、エタノール、プロパノール、ブタノール、ペンタノール、ヘキサノール、2−エチルヘキサノール、3,5,5−トリメチルヘキサノール、ヘプタノ−ル、オクタノール等の炭素数2〜22の脂肪族直鎖状又は分岐鎖状の飽和もしくは不飽和アルコールとのエステル。
不飽和アルコールの例としては、以下のものが挙げられる。
ビニルアルコール、2−プロペン−1−オール、2−デセン−1−オール、2−ウンデセン−1−オール、2−テトラデセン−1−オール、2−ペンタデセン−1−オール、2−ヘキサデセン−1−オール、2−ヘプタデセン−1−オール、2−オクタデセン−1−オール、10−ウンデセン−1−オール、11−ドデセン−1−オール、12−トリデセン−1−オール、15−ヘキサデセン−1−オール、ブテノール、オレイルアルコール、エライジルアルコール、リノレイルアルコール、リノレニルアルコール。
An ester of an aliphatic linear dicarboxylic acid and an aliphatic linear or branched saturated or unsaturated alcohol having 2 to 20 carbon atoms.
Specific examples: aliphatic linear dicarboxylic acids such as oxalic acid, succinic acid, adipic acid, azelaic acid, sebacic acid, ethanol, propanol, butanol, pentanol, hexanol, 2-ethylhexanol, 3,5,5- Esters with aliphatic straight chain or branched chain saturated or unsaturated alcohols having 2 to 22 carbon atoms such as trimethylhexanol, heptanol, octanol and the like.
The following are mentioned as an example of unsaturated alcohol.
Vinyl alcohol, 2-propen-1-ol, 2-decene-1-ol, 2-undecen-1-ol, 2-tetradecene-1-ol, 2-pentadecene-1-ol, 2-hexadecene-1-ol 2-heptadecen-1-ol, 2-octadecene-1-ol, 10-undecen-1-ol, 11-dodesen-1-ol, 12-tridecen-1-ol, 15-hexadecene-1-ol, butenol Oleyl alcohol, elidyl alcohol, linoleyl alcohol, linolenyl alcohol.
ポリオールエステル
ネオペンチルグリコール、トリメチロールプロパン、ペンタエリスリトール等のネオペンチル型ポリオールと、炭素数2〜36の脂肪族直鎖状又は分岐鎖状の飽和もしくは不飽和モノカルボン酸とのエステル。
具体例:ネオペンチルグリコール、トリメチロールプロパン、ペンタエリスリトール、ジペンタエリスリトール等のネオペンチル型ポリオールと、n−エタン酸、n−プロパン酸、n−ブタン酸、n−ペンタン酸、2−メチルペンタン酸、2−エチルペンタン酸、n−ヘキサン酸、2−メチルヘキサン酸、2−エチルヘキサン酸、n−ヘプタン酸、n−オクタン酸、n−ノナン酸、n−デカン酸、n−ウンデカン酸、n−ドデカン酸、n−トリデカン酸、n−テトラデカン酸、n−ペンタデカン酸、n−ヘキサデカン酸、n−ヘプタデカン酸、n−オクタデカン酸等の炭素数2〜36の脂肪族直鎖状又は分岐鎖状モノカルボン酸とのエステル。
コンプレックスエステル
ポリアルキレングリコール又はネオペンチル型ポリオールを分子内に含有させたエステル。
Polyol ester An ester of a neopentyl type polyol such as neopentyl glycol, trimethylolpropane, pentaerythritol and the like, and an aliphatic linear or branched saturated or unsaturated monocarboxylic acid having 2 to 36 carbon atoms.
Specific examples: neopentyl type polyols such as neopentyl glycol, trimethylolpropane, pentaerythritol, dipentaerythritol and the like, and n-ethanoic acid, n-propanoic acid, n-butanoic acid, n-pentanoic acid, 2-methylpentanoic acid, 2-ethylpentanoic acid, n-hexanoic acid, 2-methylhexanoic acid, 2-ethylhexanoic acid, n-heptanoic acid, n-octanoic acid, n-nonanoic acid, n-decanoic acid, n-undecanoic acid, n- C2-C36 aliphatic linear or branched mono, such as dodecanoic acid, n-tridecanoic acid, n-tetradecanoic acid, n-pentadecanoic acid, n-hexadecanoic acid, n-heptadecanoic acid, n-octadecanoic acid Esters with carboxylic acids.
Complex ester An ester containing polyalkylene glycol or neopentyl type polyol in the molecule.
本発明の潤滑油組成物には、必要に応じて種々の添加剤が使用できる。これらの添加剤は、1種又は2種以上を適宜組合せ、配合することもできる。例えば、摩耗防止剤、極圧剤、油性剤、防錆剤、金属不活性剤、粘度指数向上剤、流動点降下剤、加水分解防止剤、帯電防止剤、消泡剤等が挙げられる。 Various additives can be used in the lubricating oil composition of the present invention as required. These additives can be used alone or in combination of two or more. For example, antiwear agents, extreme pressure agents, oiliness agents, rust inhibitors, metal deactivators, viscosity index improvers, pour point depressants, hydrolysis inhibitors, antistatic agents, antifoaming agents and the like can be mentioned.
本発明の潤滑油組成物に増ちょう剤を添加すると本発明のグリースが得られる。本発明のグリースに使用される増ちょう剤は、特に限定されず、通常のグリースに使用されているものを適宜使用できる。例えば、金属石けん、複合石けん、ウレア、有機ベントナイト、シリカ等が挙げられる。
増ちょう剤の含有量は、目的のちょう度が得られれば良く、通常3.0〜30質量%が適当である。
本発明のグリースには、グリースに一般に配合される、全ての添加剤が使用できる。これらは、1種又は2種以上を適宜配合することができる。例えば、酸化防止剤、極圧剤、防錆剤、金属腐食防止剤、油性剤、粘度指数向上剤、流動点降下剤、付着性向上剤等が挙げられる。
添加剤の含有量は、グリースの全体量に対して、好ましくは0.01〜10質量%、さらに好ましくは0.1〜5.0質量%が適当である。
When a thickener is added to the lubricating oil composition of the present invention, the grease of the present invention is obtained. The thickener used in the grease of the present invention is not particularly limited, and those used in normal grease can be used as appropriate. For example, metal soap, composite soap, urea, organic bentonite, silica and the like can be mentioned.
The content of the thickening agent is not particularly limited as long as the desired consistency is obtained, and is usually 3.0 to 30% by mass.
In the grease of the present invention, all additives generally blended in grease can be used. One or more of these can be appropriately blended. For example, antioxidants, extreme pressure agents, rust inhibitors, metal corrosion inhibitors, oiliness agents, viscosity index improvers, pour point depressants, adhesion improvers and the like can be mentioned.
The content of the additive is preferably 0.01 to 10% by mass, more preferably 0.1 to 5.0% by mass with respect to the total amount of grease.
実施例
表1及び表2に示す処方の潤滑油組成物を調製し、その蒸発減量を測定した。結果を表1及び表2に示す。
使用した成分は以下のとおりである。
・エステル系合成油A:2,4−ジエチル−1,5−ペンタンジオールとn−オクチル酸のジエステル(40℃の動粘度:9.80mm2/s)
・エステル系合成油B:ジ−2−エチルヘキシルセバケート(40℃の動粘度:11.6mm2/s)
・フェノール系酸化防止剤A:オクタデシル3−(3,5−ジ−tert−ブチル−4−ヒドロキシフェニル)プロピオネート
・フェノール系酸化防止剤B:ペンタエリスリトールテトラキス(3−(3,5−ジ−tert−ブチル−4−ヒドロキシフェニル)プロピオネート)
・アミン系酸化防止剤A:オクチル化フェニル−α−ナフチルアミン
・アミン系酸化防止剤B:ジオクチルジフェニルアミン
EXAMPLE Lubricating oil compositions having the formulations shown in Tables 1 and 2 were prepared and their evaporation loss was measured. The results are shown in Tables 1 and 2.
The components used are as follows.
Ester synthetic oil A: Diester of 2,4-diethyl-1,5-pentanediol and n-octylic acid (kinematic viscosity at 40 ° C .: 9.80 mm 2 / s)
Ester-based synthetic oil B: di-2-ethylhexyl sebacate (kinematic viscosity at 40 ° C .: 11.6 mm 2 / s)
Phenol antioxidant A: Octadecyl 3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate Phenol antioxidant B: Pentaerythritol tetrakis (3- (3,5-di-tert -Butyl-4-hydroxyphenyl) propionate)
Amine-based antioxidant A: Octylated phenyl-α-naphthylamine Amine-based antioxidant B: Dioctyldiphenylamine
<耐熱性(蒸発減量)試験方法>
20mlのサンプルビンに潤滑油試料を5g量り採り、150℃の恒温槽内に規定時間(100〜1000時間)静置する。規定時間静置後、加熱前後の試料の質量変化から蒸発減量を求める。
蒸発減量[質量%]=100×(加熱前の試料の質量[g]−加熱後の試料の質量[g])/(加熱前の試料の質量[g])
<Heat resistance (evaporation loss) test method>
Weigh 5 g of a lubricant sample in a 20 ml sample bottle and leave it in a constant temperature bath at 150 ° C. for a specified time (100 to 1000 hours). After standing for a specified time, the evaporation loss is determined from the change in mass of the sample before and after heating.
Evaporation loss [mass%] = 100 × (mass of sample before heating [g] −mass of sample after heating [g]) / (mass of sample before heating [g])
<エステル系合成油A(ジアルコールとカルボン酸のジステル)に対する効果>
エステル系合成油Aに、フェノール系酸化防止剤とアミン系酸化防止剤を併用した実施例1〜4は、酸化防止剤を添加していない比較例1に比べ蒸発減量の著しい改善が認められる。
実施例1〜4は、フェノール系酸化防止剤を単独で添加した比較例2、3に比べ、蒸発減量の改善効果に優れる。
実施例1〜4は、アミン系酸化防止剤を単独で使用した比較例4、5、6、7に比べ、蒸発減量の改善効果に優れる。
上記結果は、フェノール系酸化防止剤とアミン系酸化防止剤を組合せて使用することによりこれらを単独で使用した場合と比較して蒸発減量の低減効果が相乗的に改善されることを示している。
<Effect on ester-based synthetic oil A (distell of dialcohol and carboxylic acid)>
In Examples 1 to 4, in which a phenolic antioxidant and an amine antioxidant are used in combination with the ester synthetic oil A, a significant improvement in evaporation loss is recognized as compared with Comparative Example 1 in which no antioxidant is added.
Examples 1-4 are excellent in the improvement effect of evaporation loss compared with the comparative examples 2 and 3 which added the phenolic antioxidant independently.
Examples 1-4 are excellent in the improvement effect of evaporation loss compared with the comparative examples 4, 5, 6, and 7 which used the amine antioxidant alone.
The above results show that the combined use of a phenolic antioxidant and an amine antioxidant synergistically improves the effect of reducing evaporation loss compared to the case where they are used alone. .
<エステル系合成油B(ジカルボン酸とアルコールのジエステル)に対する効果>
エステル系合成油Bに、フェノール系酸化防止剤とアミン系酸化防止剤を併用した実施例5〜8は、酸化防止剤を添加していない比較例8に比べ蒸発減量の著しい改善が認められる。
実施例5〜8は、フェノール系酸化防止剤を単独で使用した比較例9、10に比べ、蒸発減量の改善効果に優れる。
実施例5〜8は、アミン系酸化防止剤を単独で使用した比較例11、12、13、14に比べ、蒸発減量の改善効果に優れる。
上記結果は、フェノール系酸化防止剤とアミン系酸化防止剤を組合せて使用することによりこれらを単独で使用した場合と比較して蒸発減量の低減効果が相乗的に改善されることを示している。
<Effect on ester-based synthetic oil B (diester of dicarboxylic acid and alcohol)>
In Examples 5 to 8 in which a phenolic antioxidant and an amine antioxidant are used in combination with the ester synthetic oil B, a significant improvement in evaporation loss is recognized as compared with Comparative Example 8 in which no antioxidant is added.
Examples 5-8 are excellent in the improvement effect of evaporation loss compared with the comparative examples 9 and 10 which used the phenolic antioxidant independently.
Examples 5-8 are excellent in the improvement effect of evaporation loss compared with the comparative examples 11, 12, 13, and 14 which used the amine antioxidant alone.
The above results show that the combined use of a phenolic antioxidant and an amine antioxidant synergistically improves the effect of reducing evaporation loss compared to the case where they are used alone. .
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009021626A JP5505923B2 (en) | 2009-02-02 | 2009-02-02 | Lubricating oil composition and grease |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009021626A JP5505923B2 (en) | 2009-02-02 | 2009-02-02 | Lubricating oil composition and grease |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010174221A JP2010174221A (en) | 2010-08-12 |
JP5505923B2 true JP5505923B2 (en) | 2014-05-28 |
Family
ID=42705487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009021626A Active JP5505923B2 (en) | 2009-02-02 | 2009-02-02 | Lubricating oil composition and grease |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5505923B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013043896A (en) * | 2011-08-22 | 2013-03-04 | Kyodo Yushi Co Ltd | Lubricant base oil for fluid dynamic-pressure bearing, lubricant for fluid dynamic-pressure bearing containing the base oil, and spindle motor having the lubricant |
JP6744708B2 (en) * | 2015-01-21 | 2020-08-19 | セイコーインスツル株式会社 | Rolling bearing grease, rolling bearing, rolling bearing device and information recording/reproducing device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3508790B2 (en) * | 1995-04-07 | 2004-03-22 | 日本精工株式会社 | Rolling bearing |
JP4160772B2 (en) * | 2002-04-30 | 2008-10-08 | 協同油脂株式会社 | Synthetic lubricant base oil |
CN100497560C (en) * | 2002-06-28 | 2009-06-10 | 新日本石油株式会社 | Lubricating oil compositions |
JP4162507B2 (en) * | 2003-02-21 | 2008-10-08 | 株式会社ジャパンエナジー | Lubricating oil for fluid bearing and fluid bearing using the same |
EP1930400B1 (en) * | 2005-09-29 | 2011-08-03 | Idemitsu Kosan Co., Ltd. | Lubricant composition |
JP5092376B2 (en) * | 2005-12-05 | 2012-12-05 | 新日本理化株式会社 | Bearing lubricant |
JP2008063385A (en) * | 2006-09-05 | 2008-03-21 | Japan Energy Corp | Lubricating oil for liquid bearing, liquid bearing using the same and lubricating method of liquid bearing |
JP5202830B2 (en) * | 2006-09-13 | 2013-06-05 | Jx日鉱日石エネルギー株式会社 | Lubricating oil for fluid bearing, fluid bearing using the same, and lubrication method for fluid bearing |
-
2009
- 2009-02-02 JP JP2009021626A patent/JP5505923B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP2010174221A (en) | 2010-08-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5640315B2 (en) | Lubricating oil composition for hydrodynamic bearings or sintered oil-impregnated bearings | |
JP5959382B2 (en) | Lubricant composition for bearings | |
JP5647389B2 (en) | Transmission oil composition for automobiles | |
JP5819384B2 (en) | Transmission oil composition for automobiles | |
JPWO2004018595A1 (en) | Lubricating oil for bearings | |
WO2008134179A2 (en) | Lubricant blend composition | |
JP2009540070A (en) | Composite ester-containing lubricant composition | |
US11130926B2 (en) | Lubricating oil composition for automatic transmissions | |
JP2009203275A (en) | Bearing oil composition | |
JP2012067213A (en) | Bearing lubricating oil | |
US20200199430A1 (en) | Low viscosity heat transfer fluids with increasing flash point and thermal conductivity | |
JP2014139306A (en) | Lubricant base oil | |
JP5455480B2 (en) | Lubricating oil composition | |
JP5505923B2 (en) | Lubricating oil composition and grease | |
JP4160772B2 (en) | Synthetic lubricant base oil | |
CN100491509C (en) | Emulsifiable oil for knitting | |
JP6130818B2 (en) | Lubricating base oil and lubricating oil composition | |
WO2018203542A1 (en) | Grease composition | |
JP4891014B2 (en) | Bearing oil composition | |
JP5542726B2 (en) | Lubricating oil composition | |
JP5436022B2 (en) | Lubricant | |
JP5415705B2 (en) | Metalworking oil composition | |
JP5078068B2 (en) | Lubricating base oil | |
JP7216563B2 (en) | Grease base oil and grease composition containing the grease base oil | |
JP2993653B2 (en) | Lubricating oil composition for aluminum plastic working |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20120201 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20130807 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20130812 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20131010 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20131209 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20140224 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20140312 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5505923 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |