EP2631284B1 - Grease composition - Google Patents
Grease composition Download PDFInfo
- Publication number
- EP2631284B1 EP2631284B1 EP11834414.2A EP11834414A EP2631284B1 EP 2631284 B1 EP2631284 B1 EP 2631284B1 EP 11834414 A EP11834414 A EP 11834414A EP 2631284 B1 EP2631284 B1 EP 2631284B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grease composition
- oil
- base oil
- group
- synthetic oils
- 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
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- 239000004519 grease Substances 0.000 title claims description 48
- 239000000203 mixture Substances 0.000 title claims description 44
- 239000003921 oil Substances 0.000 claims description 41
- 239000002199 base oil Substances 0.000 claims description 27
- 239000002562 thickening agent Substances 0.000 claims description 21
- 239000004215 Carbon black (E152) Substances 0.000 claims description 17
- 125000000217 alkyl group Chemical group 0.000 claims description 17
- 229930195733 hydrocarbon Natural products 0.000 claims description 17
- 150000002430 hydrocarbons Chemical class 0.000 claims description 17
- 239000002480 mineral oil Substances 0.000 claims description 17
- 235000010446 mineral oil Nutrition 0.000 claims description 16
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 14
- 125000004432 carbon atom Chemical group C* 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 8
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 6
- 239000011737 fluorine Substances 0.000 claims description 6
- 229910052731 fluorine Inorganic materials 0.000 claims description 6
- 150000008064 anhydrides Chemical class 0.000 claims description 5
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 claims description 5
- 239000010695 polyglycol Substances 0.000 claims description 4
- 229920000151 polyglycol Polymers 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 31
- 239000003112 inhibitor Substances 0.000 description 16
- -1 aromatic diurea compounds Chemical class 0.000 description 10
- XMKLTEGSALONPH-UHFFFAOYSA-N 1,2,4,5-tetrazinane-3,6-dione Chemical compound O=C1NNC(=O)NN1 XMKLTEGSALONPH-UHFFFAOYSA-N 0.000 description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 8
- 230000003405 preventing effect Effects 0.000 description 8
- 239000011701 zinc Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 229910052725 zinc Inorganic materials 0.000 description 7
- 125000003342 alkenyl group Chemical group 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 5
- 150000001412 amines Chemical class 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- PSZYNBSKGUBXEH-UHFFFAOYSA-M naphthalene-1-sulfonate Chemical compound C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-M 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- YAXXOCZAXKLLCV-UHFFFAOYSA-N 3-dodecyloxolane-2,5-dione Chemical class CCCCCCCCCCCCC1CC(=O)OC1=O YAXXOCZAXKLLCV-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
- 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 2
- 239000004147 Sorbitan trioleate Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010696 ester oil Substances 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 2
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 229920013639 polyalphaolefin Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 229960000391 sorbitan trioleate Drugs 0.000 description 2
- 235000019337 sorbitan trioleate Nutrition 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 150000003460 sulfonic acids Chemical class 0.000 description 2
- 150000003751 zinc Chemical class 0.000 description 2
- AZQCRIDXSVMELV-UHFFFAOYSA-N 1,2-di(nonyl)naphthalene;zinc Chemical compound [Zn].C1=CC=CC2=C(CCCCCCCCC)C(CCCCCCCCC)=CC=C21 AZQCRIDXSVMELV-UHFFFAOYSA-N 0.000 description 1
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 125000005037 alkyl phenyl group Chemical group 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- CJMZLCRLBNZJQR-UHFFFAOYSA-N ethyl 2-amino-4-(4-fluorophenyl)thiophene-3-carboxylate Chemical compound CCOC(=O)C1=C(N)SC=C1C1=CC=C(F)C=C1 CJMZLCRLBNZJQR-UHFFFAOYSA-N 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- CBFCDTFDPHXCNY-UHFFFAOYSA-N octyldodecane Natural products CCCCCCCCCCCCCCCCCCCC CBFCDTFDPHXCNY-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical group [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006277 sulfonation reaction Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- COGHWIKGZJHSAG-UHFFFAOYSA-L zinc;2,3-di(nonyl)naphthalene-1-sulfonate Chemical compound [Zn+2].C1=CC=C2C(S([O-])(=O)=O)=C(CCCCCCCCC)C(CCCCCCCCC)=CC2=C1.C1=CC=C2C(S([O-])(=O)=O)=C(CCCCCCCCC)C(CCCCCCCCC)=CC2=C1 COGHWIKGZJHSAG-UHFFFAOYSA-L 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
- 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
- C10M169/06—Mixtures of thickeners and additives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/102—Aliphatic fractions
- C10M2203/1025—Aliphatic fractions used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/003—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
- C10M2207/123—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms polycarboxylic
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/127—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids polycarboxylic
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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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/287—Partial esters
- C10M2207/289—Partial esters containing free hydroxy groups
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/10—Amides of carbonic or haloformic acids
- C10M2215/102—Ureas; Semicarbazides; Allophanates
- C10M2215/1026—Ureas; Semicarbazides; Allophanates used as thickening material
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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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/011—Cloud point
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/02—Viscosity; Viscosity index
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/02—Bearings
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/14—Electric or magnetic purposes
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/40—Generators or electric motors in oil or gas winning field
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Semi-solids; greasy
Definitions
- the present invention relates to a grease composition and its use for rolling bearings of the automotive electrical equipment and automotive auxiliaries.
- diurea based greases For the rolling bearings of the automotive electrical equipment and automotive auxiliaries, diurea based greases have been widely used, especially from the viewpoint of the heat resistance. In the diurea based greases, aromatic diurea compounds are frequently used on the grounds of their durability under high temperatures.
- the aromatic diurea compounds should be added in larger amounts than other diurea compounds to render the same hardness to a resultant grease composition.
- the resistance to stirring of the resultant grease becomes too high to satisfy low torque performance.
- JP 6-17079 A proposes a grease composition characterized by comprising a base oil which contains an ether type synthetic oil in an amount of more than 50 mass%; and at least one diurea compound represented by the following general formula as a gelling agent of one essential component: R 2 -NHCONH-R 3 wherein R 1 is a bivalent aromatic hydrocarbon group having 6 to 15 carbon atoms; and R 2 and R 3 , which may be the same or different represent cyclohexyl group, a cyclohexyl-derived group having 7 to 12 carbon atoms, or an alkyl group having 8 to 20 carbon atoms, with the content of cyclohexyl group or the derived groups thereof, as expressed by formula: [((the number of the cyclohexyl groups or the derived groups thereof) / (the number of the cyclohexyl groups or the derived groups thereof + the number of the al
- the phenyl ether oil used as the base oil has a pour point of about -30°C, so that the low temperature properties are not so satisfactory. This will increase the torque at low temperatures.
- JP 2008-239706 A proposes a grease composition characterized by comprising a base oil which contains an ester type synthetic oil; and a thickener represented by the following general formula as one essential component: R 1 -NHCONH-R 2 -NHCONH-R 3 wherein R 2 is a bivalent aromatic hydrocarbon group having 6 to 15 carbon atoms; and R 1 and R 3 , which may be the same or different represent cyclohexyl group or an alkyl group having 8 to 22 carbon atoms, with the content of cyclohexyl group, as expressed by formula: [((the number of the cyclohexyl groups) / (the number of the cyclohexyl groups + the number of the alkyl groups)) x 100] being 60 to 95%.
- the ester type synthetic oil is subjected to hydrolysis when water penetrates from the outside and is mixed in, whereby the resultant acid component will unfavorably involve a risk of rust development.
- EP-A-1 953 213 describes a grease composition for a constant velocity joint, said composition comprising the following components (a) to (g):
- the synthetic ester oil (b) should be present in an amount of 5 to 40% by mass, based on the total mass of the composition.
- An object of the invention is to provide a low torque grease composition having excellent rust preventing properties.
- the low torque performance can be ensured under the circumstances of low temperature by using a low pour point synthetic hydrocarbon oil in an amount of 30 mass% or more of the base oil.
- a low pour point synthetic hydrocarbon oil in an amount of 30 mass% or more of the base oil.
- an aliphatic diurea is used alone or in combination with an alicyclic diurea to obtain a grease composition having a proper hardness even though the total amount of thickener is decreased.
- the inventors of the invention have thus solved the above-mentioned problems by choosing and combining a particular base oil, a thickener and a rust inhibitor. Namely, the invention provides the following grease composition:
- the grease composition of the invention can exhibit low torque performance within a wide temperature range, thereby improving fuel economy to contribute to reduction of CO 2 .
- the grease composition of the invention also shows excellent rust preventing properties. Further, the resistance to evaporation of the grease composition according to the invention is also excellent.
- the base oil used in the invention comprises a synthetic hydrocarbon oil and a highly purified mineral oil with a pour point of -35°C or less.
- the ratio by mass of the synthetic hydrocarbon oil to the highly purified mineral oil with a pour point of -35°C or less is 100:0 to 30:70.
- the content of the synthetic hydrocarbon oil in the base oil is 30 mass% or more, the low torque performance can be satisfied.
- Examples of the synthetic hydrocarbon oil include poly- ⁇ -olefin, polybutene, ethylene- ⁇ -olefin oligomer and the like. Particularly, poly- ⁇ -olefin is preferred.
- the highly purified mineral oil used in the invention is referred to as a mineral oil provided with a pour point lower than the pour points (about -5 to -20°C) of unpurified mineral oils by carrying out a dewaxing step to control the wax components from precipitating at low temperatures.
- the highly purified mineral oil with a pour point of -35°C or less can be used without any adverse effect on the low torque performance at low temperatures and any problem in the resistance to evaporation.
- the base oil may preferably have a kinematic viscosity at 40°C of 80 to 150 mm 2 /s, more preferably 85 to 140 mm 2 /s, and most preferably 90 to 130 mm 2 /s.
- the kinematic viscosity at 40°C of the base oil exceeds 150 mm 2 /s, the grease viscosity becomes too high to satisfy the low torque performance.
- the kinematic viscosity at 40°C of the base oil is less than 80 mm 2 /s, the resistance to evaporation will unfavorably be lowered although the requirement of low torque performance can be satisfied.
- the synthetic hydrocarbon oil may comprise the one having a kinematic viscosity at 40°C of 300 mm 2 /s or more.
- the kinematic viscosity of the base oil can be adjusted within a predetermined range, with the low torque performance at low temperatures being satisfied without impairing the resistance to evaporation.
- the highly purified oil may comprise the one having a kinematic viscosity at 40°C of 80 to 130 mm 2 /s, more preferably 80 to 110 mm 2 /s.
- the low torque performance can be satisfied, and at the same time, the resistance to evaporation can be improved.
- the pour point of the synthetic hydrocarbon oil may preferably be -35°C or less. In this case, the low torque performance at low temperatures is satisfactory.
- the grease composition optionally further comprises other base oil components that can be used in combination with the synthetic hydrocarbon oil
- the other base oil components are selected from the group consisting of ether type synthetic oils such as alkyldiphenyl ethers, polyglycol type synthetic oils such as polypropylene glycol, silicone type synthetic oils, and fluorine type synthetic oils.
- Ester type synthetic oils are not desirable because hydrolysis may be caused when water is mixed into the grease from the outside, as previously mentioned.
- the ester type synthetic oils have pour points of as high as about -30°C, so that the torque will become high at low temperatures.
- the polyglycol type synthetic oils, silicone type synthetic oils and fluorine type synthetic oils are poor in the lubricating properties and expensive.
- Examples of the thickener commonly used in the grease compositions include metallic soaps containing lithium, sodium or the like, and non-soaps such as Benton, silica gel, diurea compounds, fluorine-containing thickeners such as polytetrafluoroethylene and the like.
- the metallic soaps are not satisfactory in terms of the heat resistance, that is, the lubricating life of bearings at high temperatures; Benton and silica gel have poor water resistance; and the fluorine-containing thickeners are considerably expensive and lacking in versatility although the heat resistance is satisfactory.
- the grease composition of the invention comprises a thickener represented by the above formula (1).
- the content of alkyl groups in the above-mentioned formula (1) expressed as [(the number of moles of the alkyl groups) / (the number of moles of the alkyl groups + the number of moles of the cyclohexyl groups)] x 100 is 30 to 100%.
- the content of alkyl groups is less than 30%, the amount of thickener will increase to unfavorably fail to achieve the low torque performance.
- the amount of thickener (B) in the grease composition according to the invention may be preferably 10 to 20 mass%, and more preferably 12 to 17 mass%, from the viewpoint of low torque performance.
- the grease composition of the invention comprises as the rust inhibitor an alkenylsuccinic anhydride.
- the above-mentioned rust inhibitor can work to disperse water content even if water permeates into the grease from the outside.
- the grease composition of the invention can further comprise an organic zink sulfonate.
- the organic zinc sulfonate is a zinc salt of sulfonic acid having an organic lipophilic group.
- the sulfonic acid includes petroleum sulfonic acids obtainable by sulfonation from an aromatic hydrocarbon moiety in the lubricating oil distillate or a petroleum fraction with a high boiling point, synthetic sulfonic acids such as dinonylnaphthalene sulfonic acid, heavy alkylbenzene sulfonic acid and the like.
- an organic zinc sulfonate represented by the following formula (2) is preferable.
- [R 4 - SO 3 ] 2 Zn (2) (wherein R 4 is an alkyl group, alkenyl group, alkylnaphthyl group, dialkylnaphthyl group, alkylphenyl group or a residue from the high-boiling petroleum fraction, and the above-mentioned alkyl or alkenyl group may be a straight-chain or branched group having 2 to 22 carbon atoms.)
- zinc dioctyl naphthalenesulfonate zinc dinonyl naphthalene sulfonate, zinc didecyl naphthalenesulfonate, zinc petroleum sulfonate, zinc salt of highly basic alkylbenzenesulfonate and the like can be used.
- zinc dinonyl naphthalenesulfonate is most preferable.
- alkenylsuccinic anhydride alkenylsuccinic anhydrides having an alkenyl group with 6 to 18 carbon atoms can preferably be used.
- the alkenylsuccinic anhydrides having an alkenyl group with 10 to 15 carbon atoms are preferable.
- the amount of rust inhibitor (C) in the grease composition according to the invention may be preferably 0.1 to 3 mass%, and more preferably 0.5 to 2 mass% in order to ensure the rust preventing properties under the circumstances where salt water may permeate.
- the grease composition of the invention may further comprise additives generally used in the conventional grease compositions.
- the additives include an antioxidant such as amine-based and phenol-based antioxidants; an inorganic passivator such as sodium nitrite or the like; a rust inhibitor such as amine-based and carboxylate-based rust inhibitors; a metallic corrosion inhibitor such as benzotriazole or the like, an oiliness improver such as fatty acids, fatty acid esters, phosphates and the like; a phosphorus-containing, sulfur-containing or organic metal-containing antiwear agent or extreme-pressure agent; and a solid lubricant such as oxidized metal salts, molybdenum disulfide or the like.
- an antioxidant such as amine-based and phenol-based antioxidants
- an inorganic passivator such as sodium nitrite or the like
- a rust inhibitor such as amine-based and carboxylate-based rust inhibitors
- a metallic corrosion inhibitor such as benzotriazole or
- the grease composition of the invention can be used for rolling bearings, in particular the rolling bearings for automotive electrical equipment and automotive auxiliaries such as the electromagnetic clutch for car air conditioners, center pulley, idler pulley, tension pulley, alternator, water pump and the like.
- automotive auxiliaries such as the electromagnetic clutch for car air conditioners, center pulley, idler pulley, tension pulley, alternator, water pump and the like.
- Example 6 is within the claimed invention.
- the low torque performance was determined in accordance with a low temperature torque test defined by JIS K2220 18.
- the rust preventing properties were evaluated in accordance with a rust prevention test for bearing in accordance with ASTM D1743-73 specifications.
- the low torque performance and the rust preventing properties were both within the acceptable levels.
- the low torque performance was unacceptable in Comparative Example 1 where the content of the synthetic hydrocarbon oil was 30 mass% or less.
- the low torque performance was unacceptable in Comparative Examples 2 and 3 where the mineral oil not highly purified was contained.
- the low torque performance was also unacceptable in Comparative Examples 4 and 5 where the content of alkyl groups was 30% or less.
- the grease composition according to the invention found to be excellent in terms of both low torque performance and rust preventing properties.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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- Lubricants (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010235372A JP5766425B2 (ja) | 2010-10-20 | 2010-10-20 | グリース組成物 |
| PCT/JP2011/074109 WO2012053575A1 (ja) | 2010-10-20 | 2011-10-20 | グリース組成物 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP2631284A1 EP2631284A1 (en) | 2013-08-28 |
| EP2631284A4 EP2631284A4 (en) | 2015-07-08 |
| EP2631284B1 true EP2631284B1 (en) | 2021-01-06 |
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ID=45975285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11834414.2A Active EP2631284B1 (en) | 2010-10-20 | 2011-10-20 | Grease composition |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2631284B1 (zh) |
| JP (1) | JP5766425B2 (zh) |
| KR (1) | KR20130073977A (zh) |
| CN (1) | CN103210070B (zh) |
| WO (1) | WO2012053575A1 (zh) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5988376B2 (ja) * | 2012-12-03 | 2016-09-07 | 協同油脂株式会社 | 鉄道車両の主電動機軸受用グリース組成物及び軸受 |
| JP6268642B2 (ja) | 2014-03-12 | 2018-01-31 | 協同油脂株式会社 | グリース組成物及びグリース封入車輪用軸受 |
| JP6845633B2 (ja) * | 2016-08-04 | 2021-03-17 | 協同油脂株式会社 | グリース組成物 |
| CN107118137B (zh) * | 2017-06-26 | 2021-10-29 | 锦州康泰润滑油添加剂股份有限公司 | 一种油品防锈剂重烷基苯磺酸锌及其制备方法 |
| JP7280800B2 (ja) * | 2019-10-16 | 2023-05-24 | 協同油脂株式会社 | 車載電装品の減速機部用グリース組成物 |
| FR3129949B1 (fr) * | 2021-12-06 | 2024-08-30 | Totalenergies Marketing Services | Graisses lubrifiantes conductrices. |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008050834A1 (fr) * | 2006-10-26 | 2008-05-02 | Kyodo Yushi Co., Ltd. | Composition de graisse et arbre |
| EP1953213A1 (en) * | 2005-11-22 | 2008-08-06 | Kyodo Yushi Co., Ltd. | Grease composition for constant velocity joint and constant velocity joint |
| JP2009299846A (ja) * | 2008-06-16 | 2009-12-24 | Nsk Ltd | 鉄鋼圧延機用転がり軸受 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS617079A (ja) | 1984-06-21 | 1986-01-13 | Toyo Seikan Kaisha Ltd | 溶接缶胴の製造方法 |
| JP2979274B2 (ja) * | 1992-06-29 | 1999-11-15 | 日本精工株式会社 | 高速ころがり軸受用グリース組成物 |
| JP4102627B2 (ja) * | 2002-09-13 | 2008-06-18 | 株式会社ジェイテクト | 転がり軸受 |
| JP4832724B2 (ja) * | 2004-04-02 | 2011-12-07 | Ｎｔｎ株式会社 | グリース組成物およびグリース封入軸受 |
| JP2006300211A (ja) * | 2005-04-20 | 2006-11-02 | Ntn Corp | 一方向クラッチ内蔵型回転伝達装置 |
| JP2007106858A (ja) * | 2005-10-13 | 2007-04-26 | Nsk Ltd | 掘削機用グリース組成物及び掘削機用転がり軸受 |
| JP2008143979A (ja) * | 2006-12-07 | 2008-06-26 | Nsk Ltd | グリース組成物及び転がり軸受 |
| JP2008239706A (ja) * | 2007-03-26 | 2008-10-09 | Kyodo Yushi Co Ltd | グリース組成物及び軸受 |
| JP5467723B2 (ja) * | 2008-01-23 | 2014-04-09 | 協同油脂株式会社 | 潤滑剤組成物及び機械部材 |
| JP5467727B2 (ja) * | 2008-02-22 | 2014-04-09 | 協同油脂株式会社 | グリース組成物及び軸受 |
| JP2010048389A (ja) * | 2008-08-25 | 2010-03-04 | Nsk Ltd | 転がり軸受 |
| JP5664890B2 (ja) * | 2009-10-15 | 2015-02-04 | 協同油脂株式会社 | 風力発電機軸受用グリース組成物 |
-
2010
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2011
- 2011-10-20 WO PCT/JP2011/074109 patent/WO2012053575A1/ja active Application Filing
- 2011-10-20 KR KR1020137011244A patent/KR20130073977A/ko active Search and Examination
- 2011-10-20 EP EP11834414.2A patent/EP2631284B1/en active Active
- 2011-10-20 CN CN201180050808.5A patent/CN103210070B/zh active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1953213A1 (en) * | 2005-11-22 | 2008-08-06 | Kyodo Yushi Co., Ltd. | Grease composition for constant velocity joint and constant velocity joint |
| WO2008050834A1 (fr) * | 2006-10-26 | 2008-05-02 | Kyodo Yushi Co., Ltd. | Composition de graisse et arbre |
| JP2009299846A (ja) * | 2008-06-16 | 2009-12-24 | Nsk Ltd | 鉄鋼圧延機用転がり軸受 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103210070A (zh) | 2013-07-17 |
| EP2631284A1 (en) | 2013-08-28 |
| JP2012087221A (ja) | 2012-05-10 |
| CN103210070B (zh) | 2015-04-08 |
| KR20130073977A (ko) | 2013-07-03 |
| EP2631284A4 (en) | 2015-07-08 |
| JP5766425B2 (ja) | 2015-08-19 |
| WO2012053575A1 (ja) | 2012-04-26 |
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