KR102617790B1 - 그리스 조성물 - Google Patents
그리스 조성물 Download PDFInfo
- Publication number
- KR102617790B1 KR102617790B1 KR1020227026039A KR20227026039A KR102617790B1 KR 102617790 B1 KR102617790 B1 KR 102617790B1 KR 1020227026039 A KR1020227026039 A KR 1020227026039A KR 20227026039 A KR20227026039 A KR 20227026039A KR 102617790 B1 KR102617790 B1 KR 102617790B1
- Authority
- KR
- South Korea
- Prior art keywords
- acid
- grease composition
- preferable
- zinc
- esters
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 40
- 239000004519 grease Substances 0.000 title claims abstract description 38
- 239000003607 modifier Substances 0.000 claims abstract description 22
- 239000002199 base oil Substances 0.000 claims abstract description 16
- 239000002562 thickening agent Substances 0.000 claims abstract description 16
- -1 urea compound Chemical class 0.000 claims description 31
- 239000000344 soap Substances 0.000 claims description 29
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 19
- 229910052744 lithium Inorganic materials 0.000 claims description 19
- PRXRUNOAOLTIEF-ADSICKODSA-N Sorbitan trioleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](OC(=O)CCCCCCC\C=C/CCCCCCCC)[C@H]1OC[C@H](O)[C@H]1OC(=O)CCCCCCC\C=C/CCCCCCCC PRXRUNOAOLTIEF-ADSICKODSA-N 0.000 claims description 9
- 239000004147 Sorbitan trioleate Substances 0.000 claims description 8
- 235000019337 sorbitan trioleate Nutrition 0.000 claims description 8
- 229960000391 sorbitan trioleate Drugs 0.000 claims description 8
- 229920013639 polyalphaolefin Polymers 0.000 claims description 5
- 239000004202 carbamide Substances 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 abstract description 22
- 229930195729 fatty acid Natural products 0.000 abstract description 22
- 239000000194 fatty acid Substances 0.000 abstract description 22
- 150000003014 phosphoric acid esters Chemical class 0.000 abstract description 22
- 150000004665 fatty acids Chemical class 0.000 abstract description 18
- 150000002148 esters Chemical class 0.000 abstract description 15
- 229910052751 metal Inorganic materials 0.000 abstract description 13
- 239000002184 metal Substances 0.000 abstract description 13
- 150000003839 salts Chemical class 0.000 abstract description 13
- 150000005846 sugar alcohols Polymers 0.000 abstract description 11
- WMYJOZQKDZZHAC-UHFFFAOYSA-H trizinc;dioxido-sulfanylidene-sulfido-$l^{5}-phosphane Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S WMYJOZQKDZZHAC-UHFFFAOYSA-H 0.000 abstract description 7
- 150000003580 thiophosphoric acid esters Chemical class 0.000 abstract description 6
- 238000005096 rolling process Methods 0.000 description 20
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical class [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 18
- 230000002378 acidificating effect Effects 0.000 description 13
- 125000004432 carbon atom Chemical group C* 0.000 description 13
- ULQISTXYYBZJSJ-UHFFFAOYSA-N 12-hydroxyoctadecanoic acid Chemical compound CCCCCCC(O)CCCCCCCCCCC(O)=O ULQISTXYYBZJSJ-UHFFFAOYSA-N 0.000 description 12
- 239000003963 antioxidant agent Substances 0.000 description 11
- 239000003112 inhibitor Substances 0.000 description 11
- 230000033001 locomotion Effects 0.000 description 11
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 10
- 239000000654 additive Substances 0.000 description 9
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 9
- 239000002253 acid Substances 0.000 description 8
- 150000001412 amines Chemical class 0.000 description 8
- 239000003921 oil Substances 0.000 description 8
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 7
- 229940114072 12-hydroxystearic acid Drugs 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 6
- 235000021355 Stearic acid Nutrition 0.000 description 6
- 230000003078 antioxidant effect Effects 0.000 description 6
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 6
- ZQPPMHVWECSIRJ-MDZDMXLPSA-N elaidic acid Chemical compound CCCCCCCC\C=C\CCCCCCCC(O)=O ZQPPMHVWECSIRJ-MDZDMXLPSA-N 0.000 description 6
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 6
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 6
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 6
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 6
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 6
- 239000008117 stearic acid Substances 0.000 description 6
- 239000011701 zinc Substances 0.000 description 6
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 5
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 5
- 239000005642 Oleic acid Substances 0.000 description 5
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 5
- 125000000217 alkyl group Chemical group 0.000 description 5
- WQEPLUUGTLDZJY-UHFFFAOYSA-N pentadecanoic acid Chemical compound CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 5
- 229910052725 zinc Inorganic materials 0.000 description 5
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 4
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 4
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 4
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical class OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- IKXFIBBKEARMLL-UHFFFAOYSA-N triphenoxy(sulfanylidene)-$l^{5}-phosphane Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=S)OC1=CC=CC=C1 IKXFIBBKEARMLL-UHFFFAOYSA-N 0.000 description 4
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 description 3
- 239000005711 Benzoic acid Substances 0.000 description 3
- 235000021314 Palmitic acid Nutrition 0.000 description 3
- 235000010233 benzoic acid Nutrition 0.000 description 3
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 3
- 239000012964 benzotriazole Substances 0.000 description 3
- 239000006078 metal deactivator Substances 0.000 description 3
- 229920005862 polyol Polymers 0.000 description 3
- 150000004671 saturated fatty acids Chemical class 0.000 description 3
- 239000001593 sorbitan monooleate Substances 0.000 description 3
- 235000011069 sorbitan monooleate Nutrition 0.000 description 3
- 229940035049 sorbitan monooleate Drugs 0.000 description 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 3
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 3
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 3
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 3
- XMKLTEGSALONPH-UHFFFAOYSA-N 1,2,4,5-tetrazinane-3,6-dione Chemical compound O=C1NNC(=O)NN1 XMKLTEGSALONPH-UHFFFAOYSA-N 0.000 description 2
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 description 2
- YEVQZPWSVWZAOB-UHFFFAOYSA-N 2-(bromomethyl)-1-iodo-4-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=CC=C(I)C(CBr)=C1 YEVQZPWSVWZAOB-UHFFFAOYSA-N 0.000 description 2
- XOUQAVYLRNOXDO-UHFFFAOYSA-N 2-tert-butyl-5-methylphenol Chemical compound CC1=CC=C(C(C)(C)C)C(O)=C1 XOUQAVYLRNOXDO-UHFFFAOYSA-N 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- 239000005632 Capric acid (CAS 334-48-5) Substances 0.000 description 2
- 239000005635 Caprylic acid (CAS 124-07-2) Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 description 2
- 239000005639 Lauric acid Substances 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- MEGCHDFJJUAPQS-UHFFFAOYSA-M [Zn+].CCCCCCCCCOP([O-])(=S)SCCCCCCCCC Chemical compound [Zn+].CCCCCCCCCOP([O-])(=S)SCCCCCCCCC MEGCHDFJJUAPQS-UHFFFAOYSA-M 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- MBMBGCFOFBJSGT-KUBAVDMBSA-N all-cis-docosa-4,7,10,13,16,19-hexaenoic acid Chemical compound CC\C=C/C\C=C/C\C=C/C\C=C/C\C=C/C\C=C/CCC(O)=O MBMBGCFOFBJSGT-KUBAVDMBSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- YZXBAPSDXZZRGB-DOFZRALJSA-N arachidonic acid Chemical compound CCCCC\C=C/C\C=C/C\C=C/C\C=C/CCCC(O)=O YZXBAPSDXZZRGB-DOFZRALJSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 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
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 2
- KEMQGTRYUADPNZ-UHFFFAOYSA-N heptadecanoic acid Chemical compound CCCCCCCCCCCCCCCCC(O)=O KEMQGTRYUADPNZ-UHFFFAOYSA-N 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- VKOBVWXKNCXXDE-UHFFFAOYSA-N icosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCC(O)=O VKOBVWXKNCXXDE-UHFFFAOYSA-N 0.000 description 2
- FPLIHVCWSXLMPX-UHFFFAOYSA-M lithium 12-hydroxystearate Chemical compound [Li+].CCCCCCC(O)CCCCCCCCCCC([O-])=O FPLIHVCWSXLMPX-UHFFFAOYSA-M 0.000 description 2
- 229910003002 lithium salt Inorganic materials 0.000 description 2
- HGPXWXLYXNVULB-UHFFFAOYSA-M lithium stearate Chemical compound [Li+].CCCCCCCCCCCCCCCCCC([O-])=O HGPXWXLYXNVULB-UHFFFAOYSA-M 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- FBUKVWPVBMHYJY-UHFFFAOYSA-N nonanoic acid Chemical compound CCCCCCCCC(O)=O FBUKVWPVBMHYJY-UHFFFAOYSA-N 0.000 description 2
- UTOPWMOLSKOLTQ-UHFFFAOYSA-N octacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O UTOPWMOLSKOLTQ-UHFFFAOYSA-N 0.000 description 2
- 229960002446 octanoic acid Drugs 0.000 description 2
- SECPZKHBENQXJG-FPLPWBNLSA-N palmitoleic acid Chemical compound CCCCCC\C=C/CCCCCCCC(O)=O SECPZKHBENQXJG-FPLPWBNLSA-N 0.000 description 2
- 239000002530 phenolic antioxidant Substances 0.000 description 2
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical class O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 description 2
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000001384 succinic acid Substances 0.000 description 2
- 150000003443 succinic acid derivatives Chemical class 0.000 description 2
- 229940014800 succinic anhydride Drugs 0.000 description 2
- 150000003871 sulfonates Chemical class 0.000 description 2
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 description 2
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 2
- OTBGGTSQRYKNOE-UHFFFAOYSA-N zinc dodecoxy-dodecylsulfanyl-hydroxy-sulfanylidene-lambda5-phosphane sulfide Chemical compound P(=S)(SCCCCCCCCCCCC)(OCCCCCCCCCCCC)O.[S-2].[Zn+2] OTBGGTSQRYKNOE-UHFFFAOYSA-N 0.000 description 2
- ZNCAMSISVWKWHL-UHFFFAOYSA-L zinc;butoxy-butylsulfanyl-oxido-sulfanylidene-$l^{5}-phosphane Chemical compound [Zn+2].CCCCOP([O-])(=S)SCCCC.CCCCOP([O-])(=S)SCCCC ZNCAMSISVWKWHL-UHFFFAOYSA-L 0.000 description 2
- HHMFJIHYTYQNJP-UHFFFAOYSA-L zinc;oxido-pentoxy-pentylsulfanyl-sulfanylidene-$l^{5}-phosphane Chemical compound [Zn+2].CCCCCOP([O-])(=S)SCCCCC.CCCCCOP([O-])(=S)SCCCCC HHMFJIHYTYQNJP-UHFFFAOYSA-L 0.000 description 2
- BITHHVVYSMSWAG-KTKRTIGZSA-N (11Z)-icos-11-enoic acid Chemical compound CCCCCCCC\C=C/CCCCCCCCCC(O)=O BITHHVVYSMSWAG-KTKRTIGZSA-N 0.000 description 1
- XSXIVVZCUAHUJO-HZJYTTRNSA-N (11Z,14Z)-icosadienoic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCCCC(O)=O XSXIVVZCUAHUJO-HZJYTTRNSA-N 0.000 description 1
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical class OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 1
- KXVFBCSUGDNXQF-DZDBOGACSA-N (2z,4z,6z,8z,10z)-tetracosa-2,4,6,8,10-pentaenoic acid Chemical compound CCCCCCCCCCCCC\C=C/C=C\C=C/C=C\C=C/C(O)=O KXVFBCSUGDNXQF-DZDBOGACSA-N 0.000 description 1
- UNSRRHDPHVZAHH-YOILPLPUSA-N (5Z,8Z,11Z)-icosatrienoic acid Chemical compound CCCCCCCC\C=C/C\C=C/C\C=C/CCCC(O)=O UNSRRHDPHVZAHH-YOILPLPUSA-N 0.000 description 1
- YHGJECVSSKXFCJ-KUBAVDMBSA-N (6Z,9Z,12Z,15Z,18Z,21Z)-tetracosahexaenoic acid Chemical compound CC\C=C/C\C=C/C\C=C/C\C=C/C\C=C/C\C=C/CCCCC(O)=O YHGJECVSSKXFCJ-KUBAVDMBSA-N 0.000 description 1
- TWSWSIQAPQLDBP-CGRWFSSPSA-N (7e,10e,13e,16e)-docosa-7,10,13,16-tetraenoic acid Chemical compound CCCCC\C=C\C\C=C\C\C=C\C\C=C\CCCCCC(O)=O TWSWSIQAPQLDBP-CGRWFSSPSA-N 0.000 description 1
- HOBAELRKJCKHQD-UHFFFAOYSA-N (8Z,11Z,14Z)-8,11,14-eicosatrienoic acid Natural products CCCCCC=CCC=CCC=CCCCCCCC(O)=O HOBAELRKJCKHQD-UHFFFAOYSA-N 0.000 description 1
- CUXYLFPMQMFGPL-UHFFFAOYSA-N (9Z,11E,13E)-9,11,13-Octadecatrienoic acid Natural products CCCCC=CC=CC=CCCCCCCCC(O)=O CUXYLFPMQMFGPL-UHFFFAOYSA-N 0.000 description 1
- HVGRZDASOHMCSK-UHFFFAOYSA-N (Z,Z)-13,16-docosadienoic acid Natural products CCCCCC=CCC=CCCCCCCCCCCCC(O)=O HVGRZDASOHMCSK-UHFFFAOYSA-N 0.000 description 1
- WJFKNYWRSNBZNX-UHFFFAOYSA-N 10H-phenothiazine Chemical compound C1=CC=C2NC3=CC=CC=C3SC2=C1 WJFKNYWRSNBZNX-UHFFFAOYSA-N 0.000 description 1
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 1
- SKDGWNHUETZZCS-UHFFFAOYSA-N 2,3-ditert-butylphenol Chemical compound CC(C)(C)C1=CC=CC(O)=C1C(C)(C)C SKDGWNHUETZZCS-UHFFFAOYSA-N 0.000 description 1
- OPLCSTZDXXUYDU-UHFFFAOYSA-N 2,4-dimethyl-6-tert-butylphenol Chemical compound CC1=CC(C)=C(O)C(C(C)(C)C)=C1 OPLCSTZDXXUYDU-UHFFFAOYSA-N 0.000 description 1
- DKCPKDPYUFEZCP-UHFFFAOYSA-N 2,6-di-tert-butylphenol Chemical compound CC(C)(C)C1=CC=CC(C(C)(C)C)=C1O DKCPKDPYUFEZCP-UHFFFAOYSA-N 0.000 description 1
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 description 1
- HXIQYSLFEXIOAV-UHFFFAOYSA-N 2-tert-butyl-4-(5-tert-butyl-4-hydroxy-2-methylphenyl)sulfanyl-5-methylphenol Chemical compound CC1=CC(O)=C(C(C)(C)C)C=C1SC1=CC(C(C)(C)C)=C(O)C=C1C HXIQYSLFEXIOAV-UHFFFAOYSA-N 0.000 description 1
- PFANXOISJYKQRP-UHFFFAOYSA-N 2-tert-butyl-4-[1-(5-tert-butyl-4-hydroxy-2-methylphenyl)butyl]-5-methylphenol Chemical compound C=1C(C(C)(C)C)=C(O)C=C(C)C=1C(CCC)C1=CC(C(C)(C)C)=C(O)C=C1C PFANXOISJYKQRP-UHFFFAOYSA-N 0.000 description 1
- BVCOHOSEBKQIQD-UHFFFAOYSA-N 2-tert-butyl-6-methoxyphenol Chemical compound COC1=CC=CC(C(C)(C)C)=C1O BVCOHOSEBKQIQD-UHFFFAOYSA-N 0.000 description 1
- PIFPCDRPHCQLSJ-WYIJOVFWSA-N 4,8,12,15,19-Docosapentaenoic acid Chemical compound CC\C=C\CC\C=C\C\C=C\CC\C=C\CC\C=C\CCC(O)=O PIFPCDRPHCQLSJ-WYIJOVFWSA-N 0.000 description 1
- VAMBUGIXOVLJEA-UHFFFAOYSA-N 4-(butylamino)phenol Chemical compound CCCCNC1=CC=C(O)C=C1 VAMBUGIXOVLJEA-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
- AWQSAIIDOMEEOD-UHFFFAOYSA-N 5,5-Dimethyl-4-(3-oxobutyl)dihydro-2(3H)-furanone Chemical compound CC(=O)CCC1CC(=O)OC1(C)C AWQSAIIDOMEEOD-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
- C10M141/02—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic oxygen-containing compound
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/26—Carboxylic acids; Salts thereof
- C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M129/30—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 7 or less carbon atoms
- C10M129/32—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 7 or less carbon atoms monocarboxylic
-
- 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
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/26—Carboxylic acids; Salts thereof
- C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M129/38—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms
- C10M129/40—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms monocarboxylic
-
- 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
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/68—Esters
- C10M129/74—Esters of polyhydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
- C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
- C10M137/04—Phosphate esters
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
- C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
- C10M137/04—Phosphate esters
- C10M137/10—Thio derivatives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
- C10M141/10—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic phosphorus-containing compound
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/0206—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers used as base material
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Abstract
증주제, 기유 및 마찰 조정제를 포함하고, 상기 마찰 조정제가 지방산, 지방산 금속염, 인산에스테르, 티오인산에스테르 및 디티오인산아연으로 이루어지는 군으로부터 선택되는 적어도 1종과, 다가 알코올 에스테르를 포함하는, 그리스 조성물.
Description
본 발명은 구름 베어링, 특히, 4점 접촉 베어링에 사용하는 데에 호적한 그리스 조성물에 관한 것이다.
최근, 소비 에너지 삭감의 관점에서, 각 산업에서 사용되는 기계 부품에는 고효율화가 요구되고 있고, 부품의 경량화나 소형화, 구조의 개량 등, 각종 검토가 행해지고 있다. 그러나, 부품의 소형화에 따라, 회전 변동 시의 속도차가 커짐으로써 구름 운동뿐만 아니라 구름 미끄럼 운동이 일어나거나, 전달 효율을 상승시키기 위해 회전체를 포함하는 기계 부품으로의 하중이 높아지거나, 구름 운동이나 구름 미끄럼 운동에서의 베어링의 토크가 높아지는 문제가 있다.
부품의 소형화 관점에서, 축하중(axial load)이 양 방향으로부터 걸리는 용도에서는, 종래의 복열 앵귤러 볼 베어링 대신에 4점 접촉 베어링의 적응이 진행되고 있다. 4점 접촉 베어링은, 단열 볼 베이링과 같은 정도의 주(主)치수에도 관계없이 축하중을 양방향으로부터 받는 것이 가능한 특징을 가지고, 일반적으로 순수 축하중, 또는 축하중이 큰 사용 조건 하에 있어서 2점 접촉 상태로 사용되고 있다. 또한, 축방향의 내부 간극을 마이너스의 값(즉, 예압 부여한 상태)으로 설정함으로써, 내부 간극에 기인한 소음이나 불쾌 진동의 발생을 억제하고, 높은 정밀도가 요구되는 부품에도 적응할 수 있다.
그러나, 축하중에 대하여 래디얼 하중이 큰 사용 조건 하나, 구름 속도가 매우 느린 사용 조건 하에서는, 2점 접촉 상태로부터 4점 접촉 상태로 됨으로써 접촉부에 큰 미끄러짐 운동이 발생하고, 토크의 증대나 스틱 슬립(stick-slip)이 발생하는 것이 문제가 되고 있다.
종래, 구름 베어링의 토크를 저감하는 방법으로서, 롤링 점성 저항을 저감하기 위해 기유(基油)의 동점도를 될 수 있는 한 낮게 하거나, 교반 저항을 저감시키기 위해 그리스의 겉보기 점도를 작게 하거나, 기계 부재에서 사용할 때의 그리스 양을 절감하거나 하는 수단이 있다. 예를 들면, 특허문헌 1에서는, 40℃에 있어서의 동점도 10㎟/s 이상의 에스테르 오일을 함유하는 기유를 사용한 그리스 조성물이 제안되어 있다. 예를 들면, 특허문헌 2에서는, 교반 저항을 낮게 하기 위해 증주제(thickener)로서 지환식 지방족 디우레아를 사용한 그리스 조성물이 제안되어 있다.
그러나, 전술한 방법에서는, 미끄러짐 운동에 기인하는 토크의 증대를 억제할 수는 없다. 특허문헌 1, 특허문헌 2에 개시되어 있는 베어링은 4점 접촉 베어링이 아니다.
따라서, 본 발명이 해결하려고 하는 과제는, 효과적으로 토크를 저감할 수 있는 그리스 조성물을 제공하는 것이다.
본 발명자들은, 상기 과제에 대하여, 적절한 첨가제를 선정함으로써 이것을 해결하였다. 즉, 본 발명에 의해, 이하의 그리스 조성물을 제공한다.
1. 증주제, 기유, 및 마찰 조정제를 포함하고,
상기 마찰 조정제가 지방산, 지방산 금속염, 인산에스테르, 티오인산에스테르 및 디티오인산아연으로 이루어지는 군으로부터 선택되는 적어도 1종과, 다가 알코올 에스테르를 포함하는,
그리스 조성물.
2. 상기 마찰 조정제가 인산에스테르 및 다가 알코올 에스테르인, 상기 1항에 기재된 그리스 조성물.
3. 상기 인산에스테르가 아인산에스테르, 산성 인산에스테르 및 산성 인산에스테르 아민염으로 이루어지는 군으로부터 선택되는 적어도 1종인, 상기 1항 또는 2항에 기재된 그리스 조성물.
4. 구름 베어링용인, 상기 1항 내지 3항 중 어느 한 항에 기재된 그리스 조성물.
5. 구름 베어링이 구름 미끄러짐 운동을 행하는 베어링인, 상기 4항에 기재된 그리스 조성물.
6. 구름 베어링이 4점 접촉 베어링인, 상기 4항 또는 5항에 기재된 그리스 조성물.
본 발명의 그리스 조성물에 의해, 효율적으로 토크를 저감할 수 있다. 본 발명의 그리스 조성물을 구름 미끄러짐 운동을 행하는 구름 베어링에 적용하면, 상기 베어링의 미끄러짐 시의 마찰을 저감시킬 수 있다.
[증주제]
본 발명에 사용 가능한 증주제로서는, 리튬 비누나 리튬 콤플렉스 비누로 대표되는 비누계 증주제, 디우레아로 대표되는 우레아계 증주제, 유기화 클레이나 실리카로 대표되는 무기계 증주제, PTFE로 대표되는 유기계 증주제 등을 들 수 있다.
바람직하게는 비누계 증주제이고, 보다 바람직하게는 리튬 비누 또는 리튬 콤플렉스 비누이다. 리튬 비누로서는, 스테아르산리튬 또는 12-히드록시스테아르산리튬이 바람직하고, 12-히드록시스테아르산리튬이 더욱 바람직하다. 리튬 콤플렉스 비누로서는, 스테아르산이나 12-히드록시스테아르산 등의 지방족 카르본산의 리튬염과 이염기산리튬염의 복합물 등이 바람직하다. 이염기산으로서는, 숙신산, 말론산, 아디프산, 피멜린산, 아젤라산, 세바스산 등이 바람직하고, 아젤라산, 세바스산이 더욱 바람직하다. 아젤라산과 수산화리튬과의 염과, 12-히드록시스테아르산과 수산화리튬의 염과의 혼합물인 리튬 콤플렉스 비누가 특히 바람직하다.
리튬 비누 및 리튬 콤플렉스 비누는 윤활성이 양호하므로, 특히 미끄러짐이 큰 구름 미끄럼 환경 하에서 토크의 저감 효과가 크다. 또한, 결점이 적고, 또한 고가이지 않기 때문에, 실용성이 있는 증주제다. 또한, 리튬 콤플렉스 비누는 내열성이 우수하므로, 고온 환경 하에서도 수명이 우수하다.
증주제의 함유량은, 본 발명의 그리스 조성물의 질량에 대하여, 바람직하게는 3∼20 질량%, 더욱 바람직하게는 5∼15 질량%이다. 증주제의 함유량이 이와 같은 범위에 있으면, 그리스가 적당한 경도를 가져 누설되는 일이 적고, 유동성도 양호하므로 저온성도 우수하다.
[기유]
본 발명에 있어서 사용 가능한 기유는 특별히 한정되지 않는다. 광유, 합성유 또는 이들의 혼합물을 사용할 수 있다. 합성유로서는 디에스테르, 폴리올 에스테르로 대표되는 에스테르계 합성유, 폴리α-올레핀, 폴리부텐으로 대표되는 합성 탄화수소유, 알킬디페닐에테르, 폴리프로필렌글리콜로 대표되는 에테르계 합성유, 실리콘유, 불소화유 등 각종 합성유 등을 들 수 있다.
본 발명의 기유로서는 광유, 폴리α-올레핀, 폴리올 에스테르, 알킬디페닐에테르가 바람직하고, 폴리올 에스테르, 알킬디페닐에테르가 더욱 바람직하다. 폴리α-올레핀이 특히 바람직하다.
기유의 함유량은, 본 발명의 그리스 조성물의 전질량을 기준으로서, 적어도 50 질량%인 것이 바람직하다. 80∼90 질량%인 것이 보다 바람직하다. 85∼90 질량%인 것이 더욱 바람직하다.
40℃에 있어서의 기유의 동점도는 특별히 한정되지 않지만, 15∼200㎟/s인 것이 바람직하다. 보다 바람직하게는 30∼100㎟/s이고, 40∼80㎟/s가 특히 바람직하다. 40℃에 있어서의 기유의 동점도가 이와 같은 범위에 있으면, 만족할 수 있는 저온 유동성을 확보하면서, 양호한 내열성을 가질 수 있다.
[마찰 조정제]
본 발명의 마찰 조정제는 지방산, 지방산 금속염, 인산에스테르, 티오인산에스테르, 디티오인산아연으로부터 선택되는 적어도 1종과, 다가 알코올 에스테르의 조합을 포함한다.
지방산으로서는 예를 들면 부티르산, 발레르산, 카프로산, 헵탄산, 카프릴산, 펠라르곤산, 카프르산, 라우르산, 미리스트산, 펜타데실산, 팔미트산, 마르가르산, 스테아르산, 아라키드산, 헨에이코실산, 베헨산, 리그노세르산, 세로틴산, 몬탄산, 멜리스산 등의 포화 지방산이나, 크로톤산, 미리스트레인산, 팔미톨레산, 사피엔산, 올레산, 엘라이드산, 박센산, 가돌레산, 에이코센산, 에루크산, 카르본산, 이코사디엔산, 도코사디엔산, 리놀렌산, 피놀산, 엘레오스테아르산, 미드산, 디호모-γ-리놀렌산, 에이코사트리엔산, 스테아리돈산, 아라키돈산, 에이코사테트라엔산, 아드렌산, 보세오펜타엔산, 에이코사펜타엔산, 오즈본드산, 클루파노돈산, 테트라코사펜타엔산, 도코사헥사엔산, 니신산 등의 불포화 지방산 및 이들의 혼합물을 들 수 있다. 지방산으로서는 카프릴산, 카프르산, 라우르산, 미리스트산, 팔미트산, 스테아르산, 올레산, 리놀산이 바람직하고, 올레산이 더욱 바람직하다.
지방산 금속염으로서는 예를 들면 탄소 원자수가 바람직하게는 6∼24, 더욱 바람직하게는 12∼18인 지방산 금속 비누 및 이들의 혼합물을 들 수 있다. 지방산의 바람직한 구체예로서는 스테아르산, 팔미트산 등을 들 수 있다. 금속 비누로서는 나트륨, 칼륨 등의 알칼리 금속 비누, 마그네슘, 칼슘 등의 알칼리토류 금속 비누, 아연 비누, 알루미늄 비누, 리튬 비누 및 이들의 혼합물을 들 수 있다. 지방산 금속염으로서는, 스테아르산 금속 비누가 바람직하고, 특히 스테아르산의 리튬 비누가 바람직하다.
인산에스테르로서는 예를 들면 인산에스테르, 아인산에스테르, 차아인산에스테르, 산성 인산에스테르의 아민염, 산성 아인산에스테르의 아민염, 산성 차아인산에스테르의 아민염 및 이들의 혼합물을 들 수 있다.
인산에스테르로서는 인산에스테르, 아인산에스테르, 산성 인산에스테르, 산성 인산에스테르의 아민염이 바람직하다. 트리크레실포스페이트(TCP), 트리옥틸포스페이트(TOP)가 보다 바람직하다.
아인산에스테르로서는 트리페닐포스파이트, 트리에틸포스파이트가 바람직하다.
산성 인산에스테르로서는 디페닐하이도로겐포스파이트, 디에틸하이도로겐포스파이트가 바람직하다.
산성 인산에스테르의 아민염으로서는, 산성 인산에스테르가 식(1)에 의해 표현되는 화합물의 아민염이 바람직하다.
R15OAPO(OH)3-A (1)
(식 중, R15는 탄소수 1∼30의 직쇄 또는 분기 알킬기를 나타내고, 바람직하게는 탄소수 1∼18의 직쇄 또는 분기 알킬기를 나타내고, 더욱 바람직하게는 탄소수 1∼8의 알킬기를 나타내고, 특히 바람직하게는 탄소수 1∼4의 알킬기를 나타내며, A는 1 또는 2, 바람직하게는 2를 나타냄) 산성 인산에스테르의 아민염으로서는, 특히 tert-알킬아민- 디메틸포스페이트가 바람직하다.
티오인산에스테르로서는 에틸-3-[비스(1-메틸에톡시)포스피노티오일]티오]프로피오네이트, 트리페닐티오인산에스테르와 tert-부틸페닐 유도체의 혼합물, 3-(디-이소부톡시-티오포스포릴술파닐)-2-메틸-프로피온산, 트리스[(2 또는 4)-이소알킬페놀]티오포스페이트, 트리페닐포스포로티오네이트를 들 수 있다. 티오인산에스테르로서는 트리페닐포스포로티오네이트가 바람직하다.
디티오인산아연으로서는 디부틸디티오인산아연, 디펜틸디티오인산아연, 디헥실디티오인산아연, 디헵틸디티오인산아연, 디옥틸디티오인산아연, 디노닐디티오인산아연, 디데실디티오인산아연, 디운데실디티오인산아연, 디도데실디티오인산아연, 황화 디부틸디티오인산아연, 황화 디펜틸디티오인산아연, 황화 디헥실디티오인산아연, 황화 디헵틸디티오인산아연, 황화 디옥틸디티오인산아연, 황화 디노닐디티오인산아연, 황화 디데실디티오인산아연, 황화 디운데실디티오인산아연, 황화 디도데실디티오인산아연 및 이들의 혼합물 등을 들 수 있다. 디티오인산아연으로서는 디부틸디티오인산아연 및 디펜틸디티오인산아연의 혼합물이 바람직하다.
다가 알코올 에스테르계 마찰 조정제로서는 글리세린 지방산에스테르나, 소르비탄 트리올레이트, 소르비탄 모노올레이트 등의 소르비탄 지방산에스테르를 들 수 있다. 다가 알코올 에스테르계 마찰 조정제로서는 소르비탄 트리올레이트, 소르비탄 모노올레이트가 바람직하고, 소르비탄 트리올레이트가 보다 바람직하다.
본 발명의 마찰 조정제로서는, 인산에스테르와 다가 알코올 에스테르를 병용하는 것이 바람직하다. 본 발명의 마찰 조정제가 지방산, 지방산 금속염, 인산에스테르, 티오인산에스테르, 디티오인산아연으로부터 선택되는 적어도 1종과, 다가 알코올 에스테르의 조합만으로 이루어지는 것 또한 바람직하다. 본 발명의 마찰 조정제가 인산에스테르와 다가 알코올 에스테르인 것이 보다 바람직하다. 아인산에스테르, 산성 인산에스테르 및 산성 인산에스테르 아민염으로 이루어지는 군으로부터 선택되는 적어도 1종인 인산에스테르와, 다가 알코올 에스테르의 조합이 보다 바람직하다. 그 중에서도, 올레산, tert-알킬아민-디메틸포스페이트, 트리페닐포스포로티오에이트, 및 디알킬디티오인산아연으로 이루어지는 군으로부터 선택되는 적어도 1종과, 소르비탄 트리올레이트의 조합인 것이 바람직하다. 특히, tert-알킬아민-디메틸포스페이트와 소르비탄 트리올레이트의 조합인 것이 바람직하다.
본 발명의 마찰 조정제의 함유량은, 본 발명의 그리스 조성물의 전질량을 기준으로서, 0.2∼10 질량%인 것이 바람직하고, 0.5∼5 질량%인 것이 보다 바람직하고, 1∼3질량%인 것이 더욱 바람직하다. 본 발명의 그리스 조성물이, 상기 소정의 마찰 조정제 이외의 마찰 조정제를 포함하는 경우, 마찰 조정제의 100 질량부에 대하여, 본원 소정의 마찰 조정제의 함유량은 5 질량부인 것이 바람직하다.
[첨가제]
본 발명의 그리스 조성물은, 마찰 조정제의 이외에, 각종 윤활유나 그리스에 일반적으로 사용되는 첨가제를 더 포함할 수 있다. 이와 같은 첨가제로서는 산화 방지제, 녹방지제, 내하중 첨가제, 금속 부식 방지제, 유성제, 고체 윤활제, 기타의 마찰 조정제 등을 들 수 있다. 이 중, 산화 방지제, 녹방지제 또는 금속 부식 방지제를 포함하는 것이 바람직하다.
이들 임의의 첨가제의 함유량은, 본 발명의 그리스 조성물의 전질량에 대하여, 통상 0.2∼25 질량%이다.
산화 방지제로서는, 아민계 산화 방지제 및 페놀계 산화 방지제 등을 들 수 있다.
아민계 산화 방지제로서는 N-n-부틸-p-아미노페놀, 4,4'-테트라메틸-디-아미노 디페닐메탄, α-나프틸아민, N-페닐-α-나프틸아민, 페노티아진, 알킬디페닐아민 등을 들 수 있다. 이 중, 알킬디페닐아민이 바람직하다.
페놀계 산화 방지제로서는, 2,6-디-tert-부틸-p-크레졸(BHT), 2,2'-메틸렌비스(4-메틸-6-tert-부틸페놀), 4,4'-부틸리덴비스(3-메틸-6-tert-부틸페놀), 2,6-디-tert-부틸-페놀, 2,4-디메틸-6-tert-부틸페놀, tert-부틸히드록시아니솔(BHA), 4,4'-부틸리덴비스(3-메틸-6-tert-부틸페놀), 4,4'-메틸렌비스(2,3-디-tert-부틸페놀, 4,4'-티오비스(3-메틸-6-tert-부틸페놀), 옥타데실-3-(3,5-디-t-부틸-4-히드록시페닐)프로피오네이트 등을 들 수 있다. 이 중, 옥타데실-3-(3,5-디-t-부틸-4-히드록시페닐)프로피오네이트가 바람직하다.
산화 방지제로서는, 아민계 산화 방지제와 페놀계 산화 방지제를 함유하는 것이 바람직하다. 알킬디페닐아민과 옥타데실-3-(3,5-디-t-부틸-4-히드록시페닐)프로피오네이트를 함유하는 것이 특히 바람직하다.
산화 방지제의 함유량은, 본 발명의 그리스 조성물의 전질량에 대하여 0.5∼6 질량%인 것이 바람직하다.
녹방지제로서는, 무기계 녹방지제와 유기계 녹방지제를 들 수 있다. 무기계 녹방지제로서는, 규산Na, 탄산Li, 탄산K, 산화Zn 등의 무기 금속염을 들 수 있다. 산화아연이 바람직하다. 유기계 녹방지제로서는 아연술포네이트, Ca술포네이트의 유기 술폰산염; 벤조산Na, 벤조산Li의 벤조산; 세바스산Na 등의 카르본산염; 숙신산, 숙신산 무수물, 숙신산 하프 에스테르의 숙신산 유도체; 소르비탄 모노올레이트, 소르비탄 트리올레이트 등의 소르비탄 에스테르; 포화 또는 불포화의 탄소수 4∼22의 지방산, 바람직하게는 포화 또는 불포화의 탄소수 8∼18의 지방산과, 포화 또는 불포화의 탄소수 1∼42의 아민, 바람직하게는 포화 또는 불포화의 탄소수 4∼22의 아민으로 이루어지는 지방산 아민염 등을 들 수 있다. 숙신산 유도체, 유기 술폰산염, 지방산 아민염이 바람직하고, 특히, 숙신산 하프 에스테르; 아연 술포네이트(특히, 디노닐나프탈렌술폰산아연); 탄소수 8의 지방산과 탄소수 12의 아민과의 염, 및 탄소수 18의 지방산과 탄소수 12∼20(혼합) 아민의 염을 포함하는 혼합물이 바람직하다.
녹방지제의 함유량은, 본 발명의 그리스 조성물의 전질량을 기준으로서, 0.2∼10 질량%인 것이 바람직하다.
금속 불활성화제로서는 벤조트리아졸, 밴즈이미다졸, 인돌, 메틸벤조트리아졸 등의 트리아졸 화합물을 들 수 있다. 그 중에서도, 벤조트리아졸이 보다 바람직하다.
금속 불활성화제의 함유량은 본 발명의 그리스 조성물의 전질량을 기준으로 하여, 0.01∼5 질량%인 것이 바람직하다.
[혼화 조도]
본 발명의 그리스 조성물에 60회 혼화 조도는 바람직하게는 200∼350이다. 혼화 조도가 상기 범위에 있으면, 고속 회전에 의한 누설이 적어지고, 윤활 수명을 충족할 수 있는 한편, 그리스의 유동성도 양호하며, 윤활 수명을 충족할 수 있다.
[베어링]
본 발명의 그리스 조성물을 봉입하는 베어링은, 구름 미끄럼 운동을 행하는 구름 베어링인 것이 바람직하다. 미끄러짐이 큰 구름 미끄럼 운동을 행하는 구름 베어링이 바람직하고, 종류로서는 4점 접촉 베어링를 들 수 있다.
[실시예]
·시험 그리스의 조제
증주제로서 리튬 비누를 포함하는 그리스 조성물은, 기유 중에, 12-히드록시스테아르산을 투입하고, 가온한 후, 수산화리튬 수용액을 첨가하고, 다시 가열한 후, 급냉한 것을 베이스 그리스라고 하고, 거기에 기유과 첨가제를 첨가하고, 혼화 조도가 300(JIS K2220, 60회 혼화 조도)으로 되도록 밀링(milling) 처리하여 그리스를 조제하였다.
증주제로서 리튬 콤플렉스 비누를 포함하는 그리스 조성물은, 기유 중에 아젤라산 및 12-히드록시스테아르산을 투입하고, 가온한 후, 수산화리튬 수용액을 첨가하고, 다시 가열한 후, 급냉한 것을 베이스 그리스로 하고, 기유과 첨가제를 첨가하고, 혼화 조도가 300(JIS K2220, 60회 혼화 조도)로 되도록 밀링 처리하여 그리스를 조제하였다.
<증주제>
·리튬 비누… 12-히드록시스테아르산과, 수산화리튬으로 합성되는 비누
·리튬 콤플렉스 비누… 아젤라산 및 12-히드록시스테아르산과, 수산화리튬으로 합성되는 복합 비누
<기유>
·폴리α-올레핀(동점도: 48.5㎟/s@40℃)
기유의 40℃에 있어서의 동점도는 JIS K 222023.에 따라서 측정하였다.
<마찰 조정제>
·지방산… 올레산[루낙 O-P, 카오 가부시키가이샤(Kao Corporation) 제조]
·지방산 금속염… 스테아르산리튬[가쓰타 가가쿠 고교 가부시키가이샤(KATSUTA KAKO CO., LTD.) 제조]
·인산에스테르… tert-알킬아민-디메틸포스페이트(Vanlube 672, R. T. Vanderbilt사 제조)
·티오인산에스테르…트리페닐포스포로티오에이트(IRGALUBE TPPT, BASF사 제조)
·디티오인산아연…디알킬디티오인산아연(Lubrizol 1395, Lubrizol사 제조)
·다가 알코올 에스테르… 소르비탄 트리올레이트[비이온 OP-85R, 니치유 가부시키가이샤(NOF CORPORATION) 제조]
<기타 첨가제>
·아민계 산화 방지제(알킬디페닐아민)
·페놀계 산화 방지제(옥타데실-3-(3,5-디-t-부틸-4-히드록시페닐)프로피오네이트)
·알케닐 숙신산 무수물(방청제)
·벤조트리아졸(금속 불활성화제)
<시험 방법>
·베어링 토크 시험
본 시험은, 베어링 토크를 평가하는 시험이다. 하기의 조건으로 구름 베어링을 운전하고, 베어링의 하우징에 장착한 바를 가대에 고정한 로드셀과 접촉시켜, 토크를 측정하였다.
베어링 형식: QJ205(4점 접촉 베어링)
시험 온도: 25℃
회전수: 1rpm
시험 하중: 래디얼 하중 500N, 축하중 50N
평가: 비교예 1의 측정값을 기준으로 하는 베어링 토크 저감율로서 나타냄
결과를 표 1 및 표 2에 나타낸다.
[표 1]
[표 2]
Claims (6)
- 증주제, 기유 및 마찰 조정제를 포함하는 그리스 조성물로서,
상기 증주제가 리튬 비누, 리튬 콤플렉스 비누 또는 우레아 화합물이고,
상기 기유가 폴리α-올레핀이며,
상기 마찰 조정제가 tert-알킬아민-디메틸포스페이트 및 소르비탄 트리올레이트의 조합인, 그리스 조성물. - 삭제
- 삭제
- 삭제
- 삭제
- 삭제
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KR20190022869A (ko) | 2019-03-06 |
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