JP2018016687A - グリース組成物 - Google Patents
グリース組成物 Download PDFInfo
- Publication number
- JP2018016687A JP2018016687A JP2016146280A JP2016146280A JP2018016687A JP 2018016687 A JP2018016687 A JP 2018016687A JP 2016146280 A JP2016146280 A JP 2016146280A JP 2016146280 A JP2016146280 A JP 2016146280A JP 2018016687 A JP2018016687 A JP 2018016687A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- grease composition
- preferable
- ester
- phosphate
- 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
- 239000000203 mixture Substances 0.000 title claims abstract description 45
- 239000004519 grease Substances 0.000 title claims abstract description 44
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 24
- 229930195729 fatty acid Natural products 0.000 claims abstract description 24
- 239000000194 fatty acid Substances 0.000 claims abstract description 24
- 239000003607 modifier Substances 0.000 claims abstract description 23
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 20
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 19
- 239000010452 phosphate Substances 0.000 claims abstract description 19
- 239000002562 thickening agent Substances 0.000 claims abstract description 17
- 239000002199 base oil Substances 0.000 claims abstract description 16
- 150000002148 esters Chemical class 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 150000003839 salts Chemical class 0.000 claims abstract description 13
- 150000005846 sugar alcohols Polymers 0.000 claims abstract description 13
- 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 claims abstract description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 3
- -1 phosphate ester Chemical class 0.000 claims description 44
- 238000005096 rolling process Methods 0.000 claims description 23
- 230000002378 acidificating effect Effects 0.000 claims description 15
- 150000003014 phosphoric acid esters Chemical class 0.000 claims description 11
- 150000003580 thiophosphoric acid esters Chemical class 0.000 claims description 5
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 2
- RYYWUUFWQRZTIU-UHFFFAOYSA-K thiophosphate Chemical compound [O-]P([O-])([O-])=S RYYWUUFWQRZTIU-UHFFFAOYSA-K 0.000 abstract description 4
- 239000000344 soap Substances 0.000 description 26
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 18
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 16
- 229910052744 lithium Inorganic materials 0.000 description 16
- ULQISTXYYBZJSJ-UHFFFAOYSA-N 12-hydroxyoctadecanoic acid Chemical compound CCCCCCC(O)CCCCCCCCCCC(O)=O ULQISTXYYBZJSJ-UHFFFAOYSA-N 0.000 description 12
- 125000004432 carbon atom Chemical group C* 0.000 description 12
- 239000003112 inhibitor Substances 0.000 description 11
- 239000002253 acid Substances 0.000 description 10
- 239000003963 antioxidant agent Substances 0.000 description 10
- 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
- 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 description 8
- 150000001412 amines Chemical class 0.000 description 8
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 7
- 239000004147 Sorbitan trioleate Substances 0.000 description 7
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- 235000019337 sorbitan trioleate Nutrition 0.000 description 7
- 229960000391 sorbitan trioleate Drugs 0.000 description 7
- 229940114072 12-hydroxystearic acid Drugs 0.000 description 6
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 6
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 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
- 230000035515 penetration Effects 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
- 235000021355 Stearic acid Nutrition 0.000 description 5
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 5
- WQEPLUUGTLDZJY-UHFFFAOYSA-N pentadecanoic acid Chemical compound CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 5
- 239000008117 stearic acid Substances 0.000 description 5
- IKXFIBBKEARMLL-UHFFFAOYSA-N triphenoxy(sulfanylidene)-$l^{5}-phosphane Chemical class C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=S)OC1=CC=CC=C1 IKXFIBBKEARMLL-UHFFFAOYSA-N 0.000 description 5
- 229910052725 zinc Inorganic materials 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 125000000217 alkyl group Chemical group 0.000 description 4
- 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
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 4
- 229920013639 polyalphaolefin Polymers 0.000 description 4
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 4
- 239000011734 sodium Substances 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
- 230000000996 additive effect Effects 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
- 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 3
- 239000002530 phenolic antioxidant Substances 0.000 description 3
- 229920005862 polyol Polymers 0.000 description 3
- 235000003441 saturated fatty acids Nutrition 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
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 3
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 3
- YWWVWXASSLXJHU-AATRIKPKSA-N (9E)-tetradecenoic acid Chemical compound CCCC\C=C\CCCCCCCC(O)=O YWWVWXASSLXJHU-AATRIKPKSA-N 0.000 description 2
- 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
- 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 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
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 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
- 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
- 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
- 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
- CZBZUDVBLSSABA-UHFFFAOYSA-N butylated hydroxyanisole Chemical group COC1=CC=C(O)C(C(C)(C)C)=C1.COC1=CC=C(O)C=C1C(C)(C)C CZBZUDVBLSSABA-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Natural products C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-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
- 159000000002 lithium salts Chemical class 0.000 description 2
- HGPXWXLYXNVULB-UHFFFAOYSA-M lithium stearate Chemical compound [Li+].CCCCCCCCCCCCCCCCCC([O-])=O HGPXWXLYXNVULB-UHFFFAOYSA-M 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
- 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
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical class O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 description 2
- 150000008301 phosphite esters Chemical class 0.000 description 2
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-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
- 239000000243 solution Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000001384 succinic acid Substances 0.000 description 2
- 229940014800 succinic anhydride Drugs 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- 150000003871 sulfonates Chemical class 0.000 description 2
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 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
- 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-AVQMFFATSA-N (11e,14e)-icosa-11,14-dienoic acid Chemical compound CCCCC\C=C\C\C=C\CCCCCCCCCC(O)=O XSXIVVZCUAHUJO-AVQMFFATSA-N 0.000 description 1
- BBWMTEYXFFWPIF-CJBMEHDJSA-N (2e,4e,6e)-icosa-2,4,6-trienoic acid Chemical compound CCCCCCCCCCCCC\C=C\C=C\C=C\C(O)=O BBWMTEYXFFWPIF-CJBMEHDJSA-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
- HXQHFNIKBKZGRP-URPRIDOGSA-N (5Z,9Z,12Z)-octadecatrienoic acid Chemical compound CCCCC\C=C/C\C=C/CC\C=C/CCCC(O)=O HXQHFNIKBKZGRP-URPRIDOGSA-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
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-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
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-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
- OSYHPZSUMUFXHW-UHFFFAOYSA-N 2,3-ditert-butyl-4-[(2,3-ditert-butyl-4-hydroxyphenyl)methyl]phenol Chemical compound CC(C)(C)C1=C(O)C=CC(CC=2C(=C(C(O)=CC=2)C(C)(C)C)C(C)(C)C)=C1C(C)(C)C OSYHPZSUMUFXHW-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
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- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-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
- 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
- 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
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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
- 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
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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
- 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
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Abstract
Description
部品の小型化の観点から、アキシャル荷重が両方向からかかる用途では、従来の複列アンギュラ玉軸受に替わり4点接触軸受の適応が進められている。4点接触軸受は、単列玉軸受並みの主寸法にも関わらずアキシャル荷重を両方向から受けることが可能な特徴を持ち、一般に純アキシャル荷重、またはアキシャル荷重の大きい使用条件下において2点接触状態で使用されている。また、アキシャル方向の内部隙間を負の値(即ち、予圧付与した状態)に設定することで、内部隙間に起因した騒音や不快振動の発生を抑制し、高い精度が要求される部品にも適応することが出来る。
しかし、アキシャル荷重に対してラジアル荷重が大きい使用条件下や、転がり速度が非常に遅い使用条件下では、2点接触状態から4点接触状態になることで接触部に大きなすべり運動が発生し、トルクの増大やスティックスリップが発生することが問題になっている。
従来、転がり軸受のトルクを低減する方法として、転がり粘性抵抗を低減するために基油の動粘度をできるだけ低くしたり、攪拌抵抗を低減するためにグリースの見掛け粘度を小さくしたり、機械部材で使用する際のグリースの量を減らしたりする手段がある。例えば特許文献1では、40℃における動粘度10mm2/s以上のエステル油を含有する基油を用いたグリース組成物が提案されている。例えば特許文献2では、攪拌抵抗を低くするために増ちょう剤として脂環式脂肪族ジウレアを用いたグリース組成物が提案されている。
しかし、上述の方法では、すべり運動に起因するトルクの増大を抑制することはできない。特許文献1,2に開示されている軸受は4点接触軸受ではない。
1.増ちょう剤、基油、及び摩擦調整剤を含み、
前記摩擦調整剤が脂肪酸、脂肪酸金属塩、リン酸エステル、チオリン酸エステル、及びジチオリン酸亜鉛からなる群から選ばれる少なくとも1種と、多価アルコールエステルとを含む、
グリース組成物。
2.前記摩擦調整剤がリン酸エステル及び多価アルコールエステルである、前記1項記載のグリース組成物。
3.前記リン酸エステルが、亜リン酸エステル、酸性リン酸エステル、及び酸性リン酸エステルアミン塩からなる群から選ばれる少なくとも1種である、前記1又は2項記載のグリース組成物。
4.転がり軸受用である、前記1〜3のいずれか1項記載のグリース組成物。
5.転がり軸受が転がりすべり運動を行う軸受である、前記4項記載のグリース組成物。
6.転がり軸受が4点接触軸受である、前記4又は5項記載のグリース組成物。
本発明に使用可能な増ちょう剤としては、リチウム石けんやリチウムコンプレックス石けんに代表される石けん系増ちょう剤、ジウレアに代表されるウレア系増ちょう剤、有機化クレイやシリカに代表される無機系増ちょう剤、PTFEに代表される有機系増ちょう剤などが挙げられる。
好ましくは石けん系増ちょう剤であり、より好ましくはリチウム石けんまたはリチウムコンプレックス石けんである。リチウム石けんとしては、ステアリン酸リチウム又は12−ヒドロキシステアリン酸リチウムが好ましく、12−ヒドロキシステアリン酸リチウムがさらに好ましい。リチウムコンプレックス石けんとしては、ステアリン酸や12−ヒドロキシステアリン酸等の脂肪族カルボン酸のリチウム塩と二塩基酸リチウム塩とのコンプレックス等が好ましい。二塩基酸としては、コハク酸、マロン酸、アジピン酸、ピメリン酸、アゼライン酸、セバシン酸等が好ましく、アゼライン酸、セバシン酸がさらに好ましい。アゼライン酸と水酸化リチウムとの塩と、12−ヒドロキシステアリン酸と水酸化リチウムとの塩との混合物であるリチウムコンプレックス石けんが特に好ましい。
リチウム石けんおよびリチウムコンプレックス石けんは、潤滑性が良好であるため、特にすべりの大きい転がりすべり環境下でトルクの低減効果が大きい。また、欠点が少なく、且つ高価でないため、実用性のある増ちょう剤である。さらにリチウムコンプレックス石けんは、耐熱性に優れるため、高温環境下でも寿命にも優れる。
増ちょう剤の含有量は、本発明のグリース組成物の質量に対して、好ましくは3〜20質量%、さらに好ましくは5〜15質量%である。増ちょう剤の含有量がこのような範囲にあると、グリースが適度な硬さを有して漏洩することが少なく、流動性も良好であるため低温性にも優れる。
本発明において使用可能な基油は特に限定されない。鉱油、合成油又はそれらの混合物を使用できる。合成油としては、ジエステル、ポリオールエステルに代表されるエステル系合成油、ポリαオレフィン、ポリブデンに代表される合成炭化水素油、アルキルジフェニルエーテル、ポリプロピレングリコ−ルに代表されるエーテル系合成油、シリコーン油、フッ素化油など各種合成油などがあげられる。
本発明の基油としては、鉱油、ポリαオレフィン、ポリオールエステル、アルキルジフェニルエーテルが好ましく、ポリオールエステル、アルキルジフェニルエーテルがさらに好ましい。ポリαオレフィンが特に好ましい。
40℃における基油の動粘度は特に限定しないが、15〜200mm2/sであるのが好ましい。より好ましくは30〜100mm2/sであり、40〜80mm2/sが特に好ましい。40℃における基油の動粘度がこのような範囲にあると、満足できる低温流動性を確保しつつ、良好な耐熱性を有することができる。
本発明の摩擦調整剤は、脂肪酸、脂肪酸金属塩、リン酸エステル、チオリン酸エステル、ジチオリン酸亜鉛から選ばれる少なくとも1種と、多価アルコールエステルとの組み合わせを含む。
リン酸エステルとしては、リン酸エステル、亜リン酸エステル、酸性リン酸エステル、酸性リン酸エステルのアミン塩が好ましい。トリクレジルホスフェート(TCP)、トリオクチルホスフェート(TOP)がより好ましい。
亜リン酸エステルとしては、トリフェニルホスファイト、トリエチルホスファイトが好ましい。
酸性リン酸エステルとしては、ジフェニルハイドロゲンホスファイト、ジエチルハイドロゲンホスファイトが好ましい。
酸性リン酸エステルのアミン塩としては、酸性リン酸エステルが式(1)により表される化合物のアミン塩が好ましい。
R15OAPO(OH)3-A (1)
(式中、R15は炭素数1〜30の直鎖又は分岐アルキル基を示し、好ましくは炭素数1〜18の直鎖又は分岐アルキル基を示し、更に好ましくは炭素数1〜8のアルキル基を示し、特に好ましくは炭素数1〜4のアルキル基を示す。Aは1又は2、好ましくは2を示す。)酸性リン酸エステルのアミン塩としては、特に、ターシャリーアルキルアミン-ジメチルホスフェートが好ましい。
本発明のグリース組成物は、摩擦調整剤のほかに、各種潤滑油やグリースに一般的に用いられる添加剤を更に含むことができる。このような添加剤としては、酸化防止剤、錆止め剤、耐荷重添加剤、金属腐食防止剤、油性剤、固体潤滑剤、その他の摩擦調整剤等があげられる。このうち、酸化防止剤、錆止め剤又は金属腐食防止剤を含むのが好ましい。
これら任意の添加剤の含有量は、本発明のグリース組成物の全質量に対して、通常、0.2〜25質量%である。
アミン系酸化防止剤としては、N-n-ブチル-p-アミノフェノール、4,4’-テトラメチル-ジ-アミノジフェニルメタン、α-ナフチルアミン、N-フェニル-α-ナフチルアミン、フェノチアジン、アルキルジフェニルアミン等が挙げられる。このうち、アルキルジフェニルアミンが好ましい。
酸化防止剤としては、アミン系酸化防止剤とフェノール系酸化防止剤とを含有するのが好ましい。アルキルジフェニルアミンとオクタデシル-3-(3,5-ジ-t-ブチル-4-ヒドロキシフェニル)プロピオネートとを含有するのが特に好ましい。
酸化防止剤の含有量は、本発明のグリース組成物の全質量に対して、0.5〜6質量%であるのが好ましい。
錆止め剤の含有量は、本発明のグリース組成物の全質量を基準にして、0.2〜10質量%であるのが好ましい。
金属不活性化剤の含有量は本発明のグリース組成物の全質量を基準にして、0.01〜5質量%であるのが好ましい。
本発明のグリース組成物の60回混和ちょう度は、好ましくは200〜350である。混和ちょう度がこの範囲にあると、高速回転による漏洩が少なくなり、潤滑寿命を満足することができる一方、グリースの流動性も良好であり、潤滑寿命を満足することができる。
本発明のグリース組成物を封入する軸受は、転がりすべり運動を行う転がり軸受であるのが好ましい。すべりの大きい転がりすべり運動を行う転がり軸受が好ましく、種類としては4点接触軸受が挙げられる。
増ちょう剤としてリチウム石けんを含むグリース組成物は、基油中に、12ヒドロキシステアリン酸を投入し、加温した後、水酸化リチウム水溶液を添加し、再度加熱した後、急冷したものをベースグリースとし、そこに、基油と添加剤を加え、混和ちょう度が300(JIS K2220、60回混和ちょう度)となるようにミル処理してグリースを調製した。
増ちょう剤としてリチウムコンプレックス石けんを含むグリース組成物は、基油中に、アゼライン酸及び12ヒドロキシステアリン酸を投入し、加温した後、水酸化リチウム水溶液を添加し、再度加熱した後、急冷したものをベースグリースとし、そこに、基油と添加剤を加え、混和ちょう度が300(JIS K2220、60回混和ちょう度)となるようにミル処理してグリースを調製した。
・リチウム石けん・・・12ヒドロキシステアリン酸と、水酸化リチウムとから合成される石けん
・リチウムコンプレックス石けん・・・アゼライン酸及び12ヒドロキシステアリン酸と、水酸化リチウムとから合成される複合石けん
・ポリαオレフィン(動粘度:48.5mm2/s@40℃)
基油の40℃における動粘度はJIS K 2220 23.に従って測定した。
・脂肪酸・・・オレイン酸(ルナックO-P、花王株式会社製)
・脂肪酸金属塩・・・ステアリン酸リチウム(勝田化工株式会社製)
・リン酸エステル・・・ターシャリーアルキルアミン−ジメチルホスフェート(Vanlube672、R. T. Vanderbilt社製)
・チオリン酸エステル・・・トリフェニルホスホロチオエート(IRGALUBE TPPT、BASF社製)
・ジチオリン酸亜鉛・・・ジアルキルジチオリン酸亜鉛(Lubrizol1395、Lubrizol社製)
・多価アルコールエステル・・・ソルビタントリオレート(ノニオンOP-85R、日油株式会社製)
・ アミン系酸化防止剤(アルキルジフェニルアミン)
・ フェノール系酸化防止剤(オクタデシル-3-(3,5-ジ-t-ブチル-4
-ヒドロキシフェニル)プロピオネート)
・ アルケニルコハク酸無水物(防錆剤)
・ ベンゾトリアゾール(金属不活性化剤)
・ 軸受トルク試験
本試験は、軸受トルクを評価する試験である。下記の条件で転がり軸受を運転し、軸受のハウジングに取り付けたバーを架台に固定したロードセルと接触させて、トルクを測定した。
軸受形式:QJ205(4点接触軸受)
試験温度:25℃
回転数 :1rpm
試験荷重:ラジアル荷重500N、アキシャル荷重50N
評価 :比較例1の測定値を基準とする軸受トルク低減率として表した。
結果を表1及び表2に示す。
Claims (6)
- 増ちょう剤、基油、及び摩擦調整剤を含み、
前記摩擦調整剤が脂肪酸、脂肪酸金属塩、リン酸エステル、チオリン酸エステル、及びジチオリン酸亜鉛からなる群から選ばれる少なくとも1種と、多価アルコールエステルとを含む、
グリース組成物。 - 前記摩擦調整剤がリン酸エステル及び多価アルコールエステルである、請求項1記載のグリース組成物。
- 前記リン酸エステルが、亜リン酸エステル、酸性リン酸エステル、及び酸性リン酸エステルアミン塩からなる群から選ばれる少なくとも1種である、請求項1又は2記載のグリース組成物。
- 転がり軸受用である、請求項1〜3のいずれか1項記載のグリース組成物。
- 転がり軸受が転がりすべり運動を行う軸受である、請求項4記載のグリース組成物。
- 転がり軸受が4点接触軸受である、請求項4又は5記載のグリース組成物。
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