JP3833756B2 - Urea grease composition - Google Patents
Urea grease composition Download PDFInfo
- Publication number
- JP3833756B2 JP3833756B2 JP29727896A JP29727896A JP3833756B2 JP 3833756 B2 JP3833756 B2 JP 3833756B2 JP 29727896 A JP29727896 A JP 29727896A JP 29727896 A JP29727896 A JP 29727896A JP 3833756 B2 JP3833756 B2 JP 3833756B2
- Authority
- JP
- Japan
- Prior art keywords
- urea
- grease
- grease composition
- urea grease
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000004519 grease Substances 0.000 title claims description 33
- 239000004202 carbamide Substances 0.000 title claims description 27
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims description 15
- 239000000203 mixture Substances 0.000 title claims description 11
- -1 urea compound Chemical class 0.000 claims description 15
- 239000002199 base oil Substances 0.000 claims description 10
- 239000000654 additive Substances 0.000 claims description 7
- 239000002562 thickening agent Substances 0.000 claims description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 claims description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 230000000052 comparative effect Effects 0.000 description 11
- 229920001084 poly(chloroprene) Polymers 0.000 description 11
- 229920001225 polyester resin Polymers 0.000 description 10
- 239000004645 polyester resin Substances 0.000 description 10
- 239000003921 oil Substances 0.000 description 7
- 239000003566 sealing material Substances 0.000 description 7
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- 150000001336 alkenes Chemical class 0.000 description 3
- 230000000593 degrading effect Effects 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- 239000003981 vehicle Substances 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
- 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 2
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- KCEQQLDYFGMIGU-UHFFFAOYSA-L dilithium;nonanedioate Chemical compound [Li+].[Li+].[O-]C(=O)CCCCCCCC([O-])=O KCEQQLDYFGMIGU-UHFFFAOYSA-L 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- GIWKOZXJDKMGQC-UHFFFAOYSA-L lead(2+);naphthalene-2-carboxylate Chemical class [Pb+2].C1=CC=CC2=CC(C(=O)[O-])=CC=C21.C1=CC=CC2=CC(C(=O)[O-])=CC=C21 GIWKOZXJDKMGQC-UHFFFAOYSA-L 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- IOQPZZOEVPZRBK-UHFFFAOYSA-N octan-1-amine Chemical compound CCCCCCCCN IOQPZZOEVPZRBK-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VLBANCOPOQATQH-UHFFFAOYSA-N 2-ethylhexylcarbamodithioic acid Chemical compound CCCCC(CC)CNC(S)=S VLBANCOPOQATQH-UHFFFAOYSA-N 0.000 description 1
- WPEKEFNXROFXAX-UHFFFAOYSA-L C(N)([S-])=S.C(C)C(C[Mo+2]CC(CCCC)CC)CCCC.C(N)([S-])=S Chemical compound C(N)([S-])=S.C(C)C(C[Mo+2]CC(CCCC)CC)CCCC.C(N)([S-])=S WPEKEFNXROFXAX-UHFFFAOYSA-L 0.000 description 1
- CKKHRYHTSKRGOE-UHFFFAOYSA-M C(N)([S-])=S.[Mo+](=S)=S Chemical compound C(N)([S-])=S.[Mo+](=S)=S CKKHRYHTSKRGOE-UHFFFAOYSA-M 0.000 description 1
- HTIRHQRTDBPHNZ-UHFFFAOYSA-N Dibutyl sulfide Chemical compound CCCCSCCCC HTIRHQRTDBPHNZ-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 239000005069 Extreme pressure additive Substances 0.000 description 1
- WRBGZZOWROLHBA-UHFFFAOYSA-J N,N-bis(3-methylbutyl)carbamodithioate molybdenum(4+) Chemical compound C(CC(C)C)N(C([S-])=S)CCC(C)C.[Mo+4].C(CC(C)C)N(C([S-])=S)CCC(C)C.C(CC(C)C)N(C([S-])=S)CCC(C)C.C(CC(C)C)N(C([S-])=S)CCC(C)C WRBGZZOWROLHBA-UHFFFAOYSA-J 0.000 description 1
- 235000004443 Ricinus communis Nutrition 0.000 description 1
- 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 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- QCJQWJKKTGJDCM-UHFFFAOYSA-N [P].[S] Chemical compound [P].[S] QCJQWJKKTGJDCM-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- DJWLPDXKMXJIEW-UHFFFAOYSA-N didodecylcarbamodithioic acid Chemical compound CCCCCCCCCCCCN(C(S)=S)CCCCCCCCCCCC DJWLPDXKMXJIEW-UHFFFAOYSA-N 0.000 description 1
- 229940116901 diethyldithiocarbamate Drugs 0.000 description 1
- LMBWSYZSUOEYSN-UHFFFAOYSA-N diethyldithiocarbamic acid Chemical compound CCN(CC)C(S)=S LMBWSYZSUOEYSN-UHFFFAOYSA-N 0.000 description 1
- WQISDVQFUVGBMY-UHFFFAOYSA-N dilithium;hydrogen borate Chemical compound [Li+].[Li+].OB([O-])[O-] WQISDVQFUVGBMY-UHFFFAOYSA-N 0.000 description 1
- VXZVULMCJMCXLK-UHFFFAOYSA-N dioctadecylcarbamodithioic acid Chemical compound CCCCCCCCCCCCCCCCCCN(C(S)=S)CCCCCCCCCCCCCCCCCC VXZVULMCJMCXLK-UHFFFAOYSA-N 0.000 description 1
- 239000012990 dithiocarbamate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010696 ester oil Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- FPLIHVCWSXLMPX-UHFFFAOYSA-M lithium 12-hydroxystearate Chemical compound [Li+].CCCCCCC(O)CCCCCCCCCCC([O-])=O FPLIHVCWSXLMPX-UHFFFAOYSA-M 0.000 description 1
- LPRVNTWNHMSTPR-UHFFFAOYSA-M lithium;2-hydroxyoctadecanoate Chemical compound [Li+].CCCCCCCCCCCCCCCCC(O)C([O-])=O LPRVNTWNHMSTPR-UHFFFAOYSA-M 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000005078 molybdenum compound Substances 0.000 description 1
- 150000002752 molybdenum compounds Chemical class 0.000 description 1
- CBQPQMSTIARRSA-UHFFFAOYSA-M n,n-bis(2-methylpropyl)carbamodithioate Chemical compound CC(C)CN(C([S-])=S)CC(C)C CBQPQMSTIARRSA-UHFFFAOYSA-M 0.000 description 1
- ZKZAYPCZGZAZAG-UHFFFAOYSA-J n,n-dibutylcarbamodithioate;molybdenum(4+) Chemical compound [Mo+4].CCCCN(C([S-])=S)CCCC.CCCCN(C([S-])=S)CCCC.CCCCN(C([S-])=S)CCCC.CCCCN(C([S-])=S)CCCC ZKZAYPCZGZAZAG-UHFFFAOYSA-J 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000006259 organic additive Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 description 1
- TWQULNDIKKJZPH-UHFFFAOYSA-K trilithium;phosphate Chemical compound [Li+].[Li+].[Li+].[O-]P([O-])([O-])=O TWQULNDIKKJZPH-UHFFFAOYSA-K 0.000 description 1
- IKXFIBBKEARMLL-UHFFFAOYSA-N triphenoxy(sulfanylidene)-$l^{5}-phosphane Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=S)OC1=CC=CC=C1 IKXFIBBKEARMLL-UHFFFAOYSA-N 0.000 description 1
- WMYJOZQKDZZHAC-UHFFFAOYSA-H trizinc;dioxido-sulfanylidene-sulfido-$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 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc 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
- C10M169/06—Mixtures of thickeners and additives
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- C—CHEMISTRY; METALLURGY
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- C10M115/00—Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof
- C10M115/08—Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
-
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- C10M119/00—Lubricating compositions characterised by the thickener being a macromolecular compound
- C10M119/24—Lubricating compositions characterised by the thickener being a macromolecular compound containing nitrogen
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- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
- C10M135/12—Thio-acids; Thiocyanates; Derivatives thereof
- C10M135/14—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond
- C10M135/18—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond thiocarbamic type, e.g. containing the groups
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- C—CHEMISTRY; METALLURGY
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- 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
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/006—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions used as thickening agents
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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
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/026—Amines, e.g. polyalkylene polyamines; Quaternary amines used as thickening agents
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/08—Amides
- C10M2215/0813—Amides used as thickening agents
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/10—Amides of carbonic or haloformic acids
- C10M2215/1013—Amides of carbonic or haloformic acids used as thickening agents
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- C—CHEMISTRY; METALLURGY
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- 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
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- 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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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/12—Partial amides of polycarboxylic acids
- C10M2215/121—Partial amides of polycarboxylic acids used as thickening agents
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- C—CHEMISTRY; METALLURGY
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/2206—Heterocyclic nitrogen compounds used as thickening agents
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
- C10M2215/227—Phthalocyanines
- C10M2215/2275—Phthalocyanines used as thickening agents
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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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/044—Polyamides
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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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/045—Polyureas; Polyurethanes
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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
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
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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
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
- C10M2219/068—Thiocarbamate metal salts
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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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
-
- 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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/041—Triaryl phosphates
-
- 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
- C10N2010/00—Metal present as such or in compounds
- C10N2010/12—Groups 6 or 16
-
- 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
- C10N2040/06—Instruments or other precision apparatus, e.g. damping fluids
Description
【０００１】
【産業上の利用分野】
本発明は、摩擦特性や耐摩耗性が優れ、かつクロロプレンゴムやポリエステル樹脂等の耐シール性に良好なウレアグリースに関し、詳しくは自動車の等速ジョイント、ボールジョイント、ホイールベアリングおよび鉄鋼、産業機械、工作機械等の諸工業設備における軸受、歯車などの潤滑箇所に適用できる。
【０００２】
【従来技術】
オイルショック以降、石油価格の高騰を契機に各産業界においては省資源、省エネルギー指向が定着し、その影響を強く反映している。
【０００３】
自動車業界においては、一般の乗用車の小型化、軽量化が進められ、ＦＦ化に伴なって等速ジョイント（Ｃｏｎｓｔａｎｔ Ｖｅｌｏｃｉｔｙ Ｊｏｉｎｔ以下ＣＶＪと略する）を使用する車両が増加してきた。またＣＶＪは、４ＷＤ車や４輪独立懸架のＦＲ車にも採用され、需要は拡大傾向になってきた。ＣＶＪは、等速自在継ぎ手とも呼ばれ、角速度やトルクを等しく保ちながら回転を伝達する継ぎ手であり、各種の形式がある。その使途によって使い分けられるが使用される潤滑剤も最近の自動車の高出力・高速化そしてＣＶＪ自体の軽量化に伴ない、より一段と厳しくなっており、摺動部の摩擦・摩耗を低減するグリースが要求される。また、ＣＶＪにはグリースの漏洩防止や外部からの異物や水の侵入防止のためにシールブーツ材を取り付ける必要があり、この材料としては、クロロプレンゴムが最も一般的に使用されているが、ポリエステル樹脂も多く使用されている。
【０００４】
低摩擦かつ耐摩耗性に優れるグリースは、車の発進加速時や走行時の車体の振動・騒音を抑制する。そして、その抑温効果からシールブーツ材の耐久性も向上させることができるが、過度な温度上昇は、シールブーツ材の老朽化や潤滑剤の劣化を促進し、ＣＶＪの寿命を著しく損う。
【０００５】
一方、鉄鋼業界においては、技術革新に伴い機械設備の連続化がさらに進むとともに製品の高品質化、生産工程能力の向上、装置の信頼性確保等が強く求められている。これら機械装置に使用されるグリースは、高熱、水との接触、スケールなどの異物の侵入の可能性が高いなどの悪環境下にあり、昼夜連続の苛酷な使用条件にさらされるため潤滑条件は非常に厳しい。機械部品の長寿命化や突発的な故障を極力防ぐために摩擦・摩耗を低減し、耐シール性に優れたグリースが要求されている。また産業機械、工作機械などの潤滑箇所は、摩擦が大きく摩耗が進行すると機械の精度が低下し、機械部品を交換しなければならない。このように摩擦を低減し、摩耗を防ぐことがこの用途においても重要な課題である。
【０００６】
このため前述した潤滑箇所では、従来、硫化油脂や硫化オレフィンなどの硫黄系、ナフテン酸鉛、金属ジチオフォスフェート、金属ジチオカーバメイト系添加剤等を使用したリチウム系グリースが用いられてきた。また最近では、リチウム系グリースよりも耐熱性に優れるリチウムコンプレックスグリースやウレアグリースを使用する例が増えてきている。
【０００７】
このような状況の中で代表的な先行技術としては、ウレアグリースにおいて硫黄を含まない有機添加剤としてアロマティックアミンフォスフェートを用いたグリースがＵＳＰ４，５１４，３１２号に開示されている。また、ＵＳＰ４，８４０，７４０号の技術は、ウレアグリースに有機モリブデン化合物とジチオリン酸亜鉛を併用したグリースを開示している。特公平４−３４５９０号の技術は、ウレアグリースに▲１▼硫化ジアルキルジチオカルバミン酸モリブデンと▲２▼硫化油脂、硫化オレフィン、トリクレジルフォスフェート、トリアルキルチオフォスフェート、ジアルキルジチオリン酸亜鉛からなる群から選択された１種または２種以上の組み合わせよりなる硫黄−リン系極圧添加剤を必須成分として含有するものである。
【０００８】
しかしながら、これらの先行技術におけるグリースは、摩擦や摩耗低減効果が認められるものもあるがまだ十分に満足できるものとは言えない。また、高温下でシール材を劣化してしまう欠点もある。例えば、アマロティックアミンフォスフェートやナフテン酸鉛は、ポリエステル樹脂を、硫化油脂はクロロプレンゴムをそれぞれ劣化させるという欠点があり、また硫化オレフィンは、クロロプレンゴムやポリエステル樹脂をいずれも著しく劣化させるという欠点がある。
【０００９】
なお、他の先行技術としては、硫化ジアルキルジチオカルバミン酸モリブデンとトリフェニルフォスホロチオネートとを添加剤として用いる技術が特開平８−１５７８５９号公報に、また、増ちょう剤として１２−ヒドロキシ脂肪酸のリチウム石けん、リン酸トリエチルやリン酸トリフェニルのようなリン酸エステルから生成するリン酸リチウム塩、ほう酸ジリチウム塩を用いたものが特開昭６２−２７５１９７号公報にそれぞれ記載されている。さらにウレア化合物にリン酸エステル油を用いたグリース組成物が特開平３−２３１９９３号公報に記載されている。
【００１０】
【発明が解決しようとする課題】
本発明の目的は、前述した従来技術の状況に鑑みてなされたものであり、摩擦特性や耐摩耗性に優れ、シール材を劣化させることのないウレアグリース組成物を提供する点にある。
【００１１】
【構成】
本発明は、ウレアグリースに添加剤として
（Ａ）式
【化３】
で示される硫化ジアルキルジチオカルバミン酸モリブデンと、
（Ｂ）式
【化４】
とを配合したことを特徴とする等速ジョイント用ウレアグリース組成物に関する。
【００１２】
（Ａ）の硫化ジアルキルジチオカルバミン酸モリブデンは、いずれも融点の高い化合物であり、その例としては、硫化ジエチル−ジチオカルバミン酸モリブデン、硫化ジブチル−ジチオカルバミン酸モリブデン、硫化ジイソブチル−ジチオカルバミン酸モリブデン、硫化ジ（２−エチルヘキシル）−ジチオカルバミン酸モリブデン、硫化ジアミル−ジチオカルバミン酸モリブデン、硫化ジイソアミル−ジチオカルバミン酸モリブデン、硫化ジラウリル−ジチオカルバミン酸モリブデン、硫化ジステアリル−ジチオカルバミン酸モリブデン、硫化ｎブチル、２−エチルヘキシル−ジチオカルバミン酸モリブデンなどを挙げることができ、これらは、いずれも粉末の形で混合するが、その添加量は全量に対し、０．５〜１０重量％、好ましくは０．５〜５重量％である。０．５重量％未満の場合には、耐摩擦性や耐摩耗性の向上についての効果が不充分であり、また１０重量％を越えても効果の一層の増大はない。
【００１３】
（Ｂ）のりん酸トリフェニルは融点５０℃で常温固体のものであり、配合に際しては、この粉末を５０℃以上の基グリースにブレンドすることができる。その使用量は、全量に対し０．１〜１０重量％、好ましくは０．１〜５重量％である。０．１重量％未満の場合には、摩擦、摩耗特性の向上が見られず、また１０重量％を越えても一層十分な潤滑性能を発揮することができない。
【００１４】
増ちょう剤として用いられるウレア化合物としては、公知のウレア系増ちょう剤のいずれをも使用することができ、特にその種類に制限はない。例えば、ジウレア、トリウレア、テトラウレアなどを挙げることができる。
【００１５】
基油としては、鉱油および／または合成油を用いる。増ちょう剤としてのウレア化合物は、基油とウレア化合物の合計量に対して一般に２〜３５重量％になる量を使用することができる。
【００１６】
また、本発明の組成物には、さらに酸化防止剤、防錆剤、極圧剤、ポリマーなどの各種添加剤を加えることができる。
【００１７】
【実施例及び比較例】
本発明を実施例及び比較例により具体的に説明するが、これらの例によって何ら限定されるものではない。表１〜表５に示す配合割合（いずれも重量％で示す）で基グリースに添加剤を加え、三本ロールミルで処理し、実施例と比較例のグリースを得た。
基グリースの組成内容は、次に示す通りである。なお、基油は、１００℃の粘度が１５ｍｍ2／ｓｅｃの精製鉱油を用いた。
【００１８】
Ｉ．ジウレアグリース
基油中で１モルのジフェニルメタン−４，４′−ジイソシアネートと２モルのオクチルアミンを反応させ、生成したウレア化合物を均一に分散してグリースを得た。このウレア化合物の含有量は、基油とウレア化合物の合計量に対して１０重量％となるように使用した。
【００１９】
II．テトラウレアグリース
基油中で２モルのジフェニルメタン−４，４′−ジイソシアネートと２モルのオクチルアミンおよび１モルのエチレンジアミンを反応させ、生成したウレア化合物を均一に分散してグリースを得た。このウレア化合物の含有量は、基油とウレア化合物の合計量に対して１５重量％となるように使用した。
【００２０】
III．リチウムコンプレックスグリース
基油中でひまし油硬化脂肪酸を溶解し、中和するに必要な水酸化リチウム水溶液を加え、反応を行いながら脱水した。脱水終了後、さらにアゼライン酸を加え、中和当量の水酸化リチウム水溶液を用いて反応を行い、生成したアゼライン酸リチウムと１２ヒドロキシステアリン酸リチウム石けんとを均一に混合分散してグリースを得た。石けん含有量は、基油と増ちょう剤の合計量に対し、増ちょう剤としての１２ヒドロキシステアリン酸リチウムが７．５重量％、アゼライン酸リチウムが２．５重量％になるように使用した。
【００２１】
表中の摩擦係数、耐摩耗性およびシール材との適合性について以下の試験を行い、評価した。
【００２２】
（１）摩擦係数
ファレックス試験機を用いて、次の条件により１５分後の摩擦係数を求めた（ＩＰ２４１／６９に準拠）。
回転数 ：２９０ｒｐｍ
荷重 ：２００ｌｂ
温度 ：室温
時間 ：１５分
グリース量：試験片にグリースを約１ｇ塗布
【００２３】
（２）耐摩耗性
四球式摩耗試験 ＡＳＴＭ Ｄ２２２６による。
回転数 ：１２００ｒｐｍ
荷重 ：４０ｋｇｆ
温度 ：７５℃
時間 ：６０分
【００２４】
（３）シール材との適合性
ＪＩＳ Ｋ６３０１の加硫ゴム物理試験に準拠し、シール材がクロロプレンゴムまたはポリエステル樹脂である場合について、次の条件によりそれぞれのグリース組成物に浸漬してテストした。その試験前、試験後の引張り強さと伸びを測定し、それぞれの変化率を求めた。
温度 ：１４０℃
浸漬時間 ：９６ｈｒｓ
【００２５】
【表１】
【表２】
【表３】
【表４】
【表５】
【表６】
【表７】
【表８】
【評価】
実施例１〜７の摩擦係数は、比較例１〜１０に較べてすべて小さく、良好な結果が得られている。耐摩耗性については、比較例５、６、７、９および１０が実施例と同程度の良い結果を与えている。しかし、これらの比較例は、クロロプレンゴムあるいは、ポリエステル樹脂との適合性に劣っている。
例えば、比較例５はクロロプレンゴムおよびポリエステル樹脂の伸び変化率が大きい。比較例６は、クロロプレンゴムの引張り強さおよび伸び変化率が大きい。比較例７はクロロプレンゴムおよびポリエステル樹脂の引張り強さおよび伸び変化率が著しく大きい。比較例９および１０はポリエステル樹脂の伸び変化率がやゝ大きい。実施例１〜７は、摩擦係数、耐摩耗性に優れ、かつクロロプレンゴムやポリエステル樹脂のシール材に対しても適合性に優れていることが明らかである。
また、比較例１〜３は、本発明の添加剤の一方を含んでいるため変化率の点ではかなり良い結果を示すものもあるが、摩擦係数や耐摩耗性の点で劣っている。
【００３４】
【効果】
（１）本発明のグリースは、低摩擦係数を有し耐摩耗性に優れる。その結果、自動車の等速ジョイントの振動や騒音を抑制する。また、自動車のボールジョイントやホイールベアリングおよびその他諸工業機械設備の摩耗を低減し、機械部品の寿命向上に貢献できる。
（２）本発明グリースは、クロロプレンゴムおよびポリエステル樹脂との適合性に優れ、高温下においても密封装置のシール材の劣化を遅延する。[0001]
[Industrial application fields]
The present invention relates to a urea grease having excellent friction characteristics and wear resistance and good seal resistance such as chloroprene rubber and polyester resin, and more specifically, a constant velocity joint of an automobile, a ball joint, a wheel bearing and steel, an industrial machine, It can be applied to lubricated parts such as bearings and gears in various industrial equipment such as machine tools.
[0002]
[Prior art]
Since the oil shock, oil and oil prices have soared and resource-saving and energy-saving orientation has become established in each industry, and the impact is strongly reflected.
[0003]
In the automobile industry, general passenger cars have been reduced in size and weight, and the number of vehicles using a constant velocity joint (hereinafter abbreviated as CVJ) has increased with the FF. CVJ is also used in 4WD vehicles and four-wheel independent FR vehicles, and demand has been increasing. The CVJ is also called a constant velocity universal joint, is a joint that transmits rotation while keeping the angular velocity and torque equal, and has various types. The lubricant used depends on the purpose of use, but with the recent increase in the output and speed of automobiles and the weight reduction of the CVJ itself, the lubricant has become even more severe. Required. Also, it is necessary to attach a seal boot material to CVJ in order to prevent grease leakage and to prevent foreign substances and water from entering, and chloroprene rubber is most commonly used as this material. Many resins are also used.
[0004]
Grease with low friction and excellent wear resistance suppresses vibration and noise of the car body when accelerating and driving. The durability of the seal boot material can be improved due to the temperature-suppressing effect, but an excessive temperature rise promotes the aging of the seal boot material and the deterioration of the lubricant, and the life of the CVJ is remarkably impaired.
[0005]
On the other hand, in the steel industry, along with technological innovation, the continuation of machinery and equipment has further progressed, and there has been a strong demand for higher product quality, improved production process capability, and reliability of equipment. The grease used in these machines is in a bad environment such as high heat, contact with water, and the possibility of foreign objects such as scales entering, and it is exposed to severe continuous use conditions day and night. Very severe. In order to prevent mechanical parts from extending their life and sudden failures, greases with reduced friction and wear and excellent seal resistance are required. Also, in lubricated parts such as industrial machines and machine tools, if the friction is large and the wear proceeds, the accuracy of the machine decreases, and machine parts must be replaced. Thus, reducing friction and preventing wear are also important issues in this application.
[0006]
For this reason, in the above-mentioned lubrication locations, lithium-based greases using sulfur-based oils such as sulfurized fats and oils and sulfurized olefins, lead naphthenates, metal dithiophosphates, metal dithiocarbamate-based additives and the like have been used. In recent years, examples of using lithium complex greases and urea greases, which have better heat resistance than lithium-based greases, are increasing.
[0007]
In this situation, as a typical prior art, a grease using aromatic amine phosphate as an organic additive not containing sulfur in urea grease is disclosed in US Pat. No. 4,514,312. US Pat. No. 4,840,740 discloses a grease in which an organic molybdenum compound and zinc dithiophosphate are used in combination with urea grease. The technology of Japanese Examined Patent Publication No. 4-34590 includes urea grease from the group consisting of (1) molybdenum dialkyldithiocarbamate disulfide and (2) sulfurized oil, sulfurized olefin, tricresyl phosphate, trialkylthiophosphate, zinc dialkyldithiophosphate. It contains a sulfur-phosphorus extreme pressure additive composed of one or more selected combinations as an essential component.
[0008]
However, some of these prior art greases are found to be effective in reducing friction and wear, but are still not fully satisfactory. In addition, there is a drawback that the sealing material deteriorates at high temperatures. For example, amalotic amine phosphate and lead naphthenate have the disadvantage of degrading polyester resins, and sulfurized oils and fats have the disadvantage of degrading chloroprene rubber, and sulfurized olefins have the disadvantage of significantly degrading chloroprene rubber and polyester resins. is there.
[0009]
As another prior art, a technique using molybdenum sulfide dialkyldithiocarbamate molybdenum and triphenylphosphorothionate as additives is disclosed in JP-A-8-1557859, and lithium as a thickener is 12-hydroxy fatty acid. Japanese Patent Application Laid-Open No. 62-275197 discloses use of soap, lithium phosphate salt produced from a phosphate ester such as triethyl phosphate and triphenyl phosphate, and dilithium borate salt. Further, a grease composition using a phosphate ester oil as a urea compound is described in JP-A-3-231993.
[0010]
[Problems to be solved by the invention]
The object of the present invention is to provide a urea grease composition that is excellent in frictional properties and wear resistance and does not deteriorate the sealing material.
[0011]
【Constitution】
The present invention is based on the formula (A) as an additive to urea grease.
A molybdenum dialkyldithiocarbamate sulfide represented by
Formula (B)
The present invention relates to a urea grease composition for constant velocity joints .
[0012]
The molybdenum sulfide dialkyldithiocarbamate of (A) is a compound having a high melting point, and examples thereof include sulfurized diethyl-dithiocarbamate, molybdenum dibutyl-dithiocarbamate, sulfurized diisobutyl-dithiocarbamate, disulfide di (2 -Ethylhexyl) -molybdenum dithiocarbamate, molybdenum disulfide-dithiocarbamate, molybdenum diisoamyl-dithiocarbamate, sulfurized dilauryl-dithiocarbamate, sulfurized distearyl-dithiocarbamate, n-butyl sulfide, 2-ethylhexyl-dithiocarbamate These are all mixed in the form of powder, but the addition amount is 0.5 to 10% by weight, preferably 0%, based on the total amount. 5 to 5 percent by weight. When the amount is less than 0.5% by weight, the effect of improving the friction resistance and wear resistance is insufficient, and when the amount exceeds 10% by weight, the effect is not further increased.
[0013]
The triphenyl phosphate (B) has a melting point of 50 ° C. and is solid at room temperature, and when blended, this powder can be blended with a base grease of 50 ° C. or higher. The amount used is 0.1 to 10% by weight, preferably 0.1 to 5% by weight, based on the total amount. If it is less than 0.1% by weight, the friction and wear characteristics are not improved, and if it exceeds 10% by weight, a further sufficient lubricating performance cannot be exhibited.
[0014]
As the urea compound used as the thickener, any known urea-based thickener can be used, and the type thereof is not particularly limited. Examples include diurea, triurea, and tetraurea.
[0015]
Mineral oil and / or synthetic oil is used as the base oil. The urea compound as the thickener can be used in an amount of generally 2 to 35% by weight based on the total amount of the base oil and the urea compound.
[0016]
Moreover, various additives, such as antioxidant, a rust preventive agent, an extreme pressure agent, and a polymer, can be further added to the composition of this invention.
[0017]
[Examples and Comparative Examples]
The present invention will be specifically described with reference to examples and comparative examples, but is not limited to these examples. Additives were added to the base grease at the blending ratios shown in Tables 1 to 5 (all are expressed as% by weight) and treated with a three roll mill to obtain greases of Examples and Comparative Examples.
The composition of the base grease is as shown below. In addition, the refined mineral oil whose viscosity of 100 degreeC is 15 mm < 2 > / sec was used for the base oil.
[0018]
I. In a diurea grease base oil, 1 mol of diphenylmethane-4,4′-diisocyanate and 2 mol of octylamine were reacted, and the resulting urea compound was uniformly dispersed to obtain a grease. The content of the urea compound was used to be 10% by weight with respect to the total amount of the base oil and the urea compound.
[0019]
II. In a tetraurea grease base oil, 2 mol of diphenylmethane-4,4′-diisocyanate was reacted with 2 mol of octylamine and 1 mol of ethylenediamine, and the resulting urea compound was uniformly dispersed to obtain a grease. The urea compound content was 15% by weight with respect to the total amount of base oil and urea compound.
[0020]
III. Castor oil-cured fatty acid was dissolved in a lithium complex grease base oil, and an aqueous lithium hydroxide solution necessary for neutralization was added, followed by dehydration while carrying out the reaction. After completion of the dehydration, azelaic acid was further added, a reaction was carried out using a neutralizing equivalent amount of lithium hydroxide aqueous solution, and the resulting lithium azelaate and lithium 12 hydroxystearate soap were uniformly mixed and dispersed to obtain a grease. The soap content was used so that lithium hydroxystearate as a thickener was 7.5% by weight and lithium azelaate was 2.5% by weight with respect to the total amount of base oil and thickener.
[0021]
The following tests were conducted and evaluated for the friction coefficient, wear resistance, and compatibility with the sealing material in the table.
[0022]
(1) Friction coefficient Using a Falex tester, the friction coefficient after 15 minutes was determined under the following conditions (based on IP241 / 69).
Rotation speed: 290rpm
Load: 200 lb
Temperature: Room temperature Time: 15 minutes Grease amount: About 1 g of grease is applied to the test piece.
(2) Abrasion resistance Four-ball wear test According to ASTM D2226.
Rotation speed: 1200rpm
Load: 40kgf
Temperature: 75 ° C
Time: 60 minutes [0024]
(3) Compatibility with sealing material Based on the physical test of vulcanized rubber of JIS K6301, when the sealing material was chloroprene rubber or polyester resin, it was immersed in each grease composition and tested under the following conditions. The tensile strength and elongation after the test and after the test were measured, and the respective rates of change were determined.
Temperature: 140 ° C
Immersion time: 96 hrs
[0025]
[Table 1]
[Table 2]
[Table 3]
[Table 4]
[Table 5]
[Table 6]
[Table 7]
[Table 8]
[Evaluation]
The friction coefficients of Examples 1 to 7 are all smaller than those of Comparative Examples 1 to 10, and good results are obtained. As for the wear resistance, Comparative Examples 5, 6, 7, 9 and 10 give the same results as the examples. However, these comparative examples are inferior in compatibility with chloroprene rubber or polyester resin.
For example, Comparative Example 5 has a large elongation change rate of chloroprene rubber and polyester resin. In Comparative Example 6, the tensile strength and elongation change rate of the chloroprene rubber are large. In Comparative Example 7, the tensile strength and elongation change rate of chloroprene rubber and polyester resin are remarkably large. In Comparative Examples 9 and 10, the rate of change in elongation of the polyester resin is slightly large. It is clear that Examples 1 to 7 are excellent in friction coefficient and wear resistance, and are excellent in compatibility with chloroprene rubber and polyester resin sealing materials.
In addition, Comparative Examples 1 to 3 contain one of the additives of the present invention, and some of them show considerably good results in terms of change rate, but are inferior in terms of friction coefficient and wear resistance.
[0034]
【effect】
(1) The grease of the present invention has a low coefficient of friction and excellent wear resistance. As a result, vibration and noise of the constant velocity joint of the automobile are suppressed. In addition, it can reduce the wear of automobile ball joints, wheel bearings and other industrial machinery and equipment, and contribute to the improvement of the service life of machine parts.
(2) The grease of the present invention is excellent in compatibility with chloroprene rubber and polyester resin, and delays the deterioration of the sealing material of the sealing device even at high temperatures.
Claims (3)
（Ａ）式
で示される硫化ジアルキルジチオカルバミン酸モリブデンと、
（Ｂ）式
とを配合したことを特徴とする等速ジョイント用ウレアグリース組成物。Formula (A) as an additive to urea grease
A molybdenum dialkyldithiocarbamate sulfide represented by
(B) Formula
A urea grease composition for constant velocity joints , characterized in that
Priority Applications (16)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29727896A JP3833756B2 (en) | 1996-10-18 | 1996-10-18 | Urea grease composition |
| ARP970104775A AR009120A1 (en) | 1996-10-18 | 1997-10-16 | A COMPOSITION OF UREA FAT AND MECHANISMS CONTAINING SUCH A COMPOSITION |
| MYPI97004860A MY115558A (en) | 1996-10-18 | 1997-10-16 | Urea grease composition |
| CO97060780A CO4890881A1 (en) | 1996-10-18 | 1997-10-16 | UREA FAT COMPOSITIONS AND MECHANISMS CONTAINING SUCH COMPOSITIONS |
| ZA9709263A ZA979263B (en) | 1996-10-18 | 1997-10-16 | Urea grease composition. |
| CN97199344A CN1079822C (en) | 1996-10-18 | 1997-10-17 | Urea grease composition |
| SK480-99A SK286548B6 (en) | 1996-10-18 | 1997-10-17 | Urea grease composition |
| EP97945872A EP0960180B1 (en) | 1996-10-18 | 1997-10-17 | Urea grease composition |
| BR9711936-9A BR9711936A (en) | 1996-10-18 | 1997-10-17 | Composition of urea grease and gears |
| PCT/EP1997/005914 WO1998017748A1 (en) | 1996-10-18 | 1997-10-17 | Urea grease composition |
| AU51211/98A AU722529B2 (en) | 1996-10-18 | 1997-10-17 | Urea grease composition |
| KR10-1999-7003290A KR100503107B1 (en) | 1996-10-18 | 1997-10-17 | Urea grease composition |
| CA002268286A CA2268286C (en) | 1996-10-18 | 1997-10-17 | Urea grease composition |
| TR1999/00840T TR199900840T2 (en) | 1996-10-18 | 1997-10-17 | �re bile�imi stoneware |
| HU0000452A HUP0000452A3 (en) | 1996-10-18 | 1997-10-17 | Urea grease composition |
| DE69740119T DE69740119D1 (en) | 1996-10-18 | 1997-10-17 | UREA GREASE COMPOSITION |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29727896A JP3833756B2 (en) | 1996-10-18 | 1996-10-18 | Urea grease composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10121080A JPH10121080A (en) | 1998-05-12 |
| JP3833756B2 true JP3833756B2 (en) | 2006-10-18 |
Family
ID=17844459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29727896A Expired - Lifetime JP3833756B2 (en) | 1996-10-18 | 1996-10-18 | Urea grease composition |
Country Status (16)
| Country | Link |
|---|---|
| EP (1) | EP0960180B1 (en) |
| JP (1) | JP3833756B2 (en) |
| KR (1) | KR100503107B1 (en) |
| CN (1) | CN1079822C (en) |
| AR (1) | AR009120A1 (en) |
| AU (1) | AU722529B2 (en) |
| BR (1) | BR9711936A (en) |
| CA (1) | CA2268286C (en) |
| CO (1) | CO4890881A1 (en) |
| DE (1) | DE69740119D1 (en) |
| HU (1) | HUP0000452A3 (en) |
| MY (1) | MY115558A (en) |
| SK (1) | SK286548B6 (en) |
| TR (1) | TR199900840T2 (en) |
| WO (1) | WO1998017748A1 (en) |
| ZA (1) | ZA979263B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013093104A1 (en) | 2011-12-22 | 2013-06-27 | Shell Internationale Research Maatschappij B.V. | Grease composition |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6376432B1 (en) * | 2001-03-26 | 2002-04-23 | Exxonmobil Research And Engineering Company | Low friction grease for constant velocity universal joints, particularly plunging type joints that is compatible with silicone elastomer boots |
| JP2004059604A (en) * | 2002-07-24 | 2004-02-26 | Nippon Oil Corp | Grease composition |
| CN1292060C (en) * | 2002-08-21 | 2006-12-27 | 西铁城钟表株式会社 | Grease composition for precision equipment and timepiece containing the same |
| JP2005008744A (en) | 2003-06-18 | 2005-01-13 | Showa Shell Sekiyu Kk | Grease composition |
| JP2005248034A (en) * | 2004-03-04 | 2005-09-15 | Ntn Corp | Grease composition, its preparation method, and antifriction bearing filled with the grease composition |
| JP4776193B2 (en) * | 2004-09-07 | 2011-09-21 | Ｎｔｎ株式会社 | Grease composition for automobile wheel bearing |
| JP4461000B2 (en) * | 2004-11-25 | 2010-05-12 | 本田技研工業株式会社 | Grease composition for constant velocity joint and constant velocity joint |
| JP4809603B2 (en) * | 2004-11-25 | 2011-11-09 | 本田技研工業株式会社 | Constant velocity joint |
| JP5335019B2 (en) * | 2011-03-07 | 2013-11-06 | Ｎｔｎ株式会社 | Grease composition for automobile wheel bearing |
| JP6292569B2 (en) * | 2013-12-04 | 2018-03-14 | 協同油脂株式会社 | Grease composition for constant velocity joint and constant velocity joint enclosing the grease composition |
| CN104164286A (en) * | 2014-08-05 | 2014-11-26 | 中国石油化工股份有限公司 | Lubricating grease composition for steering ball joint and preparation method of lubricating grease composition |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62207397A (en) * | 1986-03-06 | 1987-09-11 | Kyodo Yushi Kk | Extreme-pressure grease composition |
| US5133888A (en) * | 1990-09-28 | 1992-07-28 | Amoco Corporation | Cruise missile engine bearing grease |
| JP3001171B2 (en) * | 1993-05-25 | 2000-01-24 | 昭和シェル石油株式会社 | Urea grease composition |
-
1996
- 1996-10-18 JP JP29727896A patent/JP3833756B2/en not_active Expired - Lifetime
-
1997
- 1997-10-16 CO CO97060780A patent/CO4890881A1/en unknown
- 1997-10-16 MY MYPI97004860A patent/MY115558A/en unknown
- 1997-10-16 AR ARP970104775A patent/AR009120A1/en active IP Right Grant
- 1997-10-16 ZA ZA9709263A patent/ZA979263B/en unknown
- 1997-10-17 SK SK480-99A patent/SK286548B6/en not_active IP Right Cessation
- 1997-10-17 DE DE69740119T patent/DE69740119D1/en not_active Expired - Lifetime
- 1997-10-17 WO PCT/EP1997/005914 patent/WO1998017748A1/en active IP Right Grant
- 1997-10-17 CA CA002268286A patent/CA2268286C/en not_active Expired - Fee Related
- 1997-10-17 TR TR1999/00840T patent/TR199900840T2/en unknown
- 1997-10-17 BR BR9711936-9A patent/BR9711936A/en not_active Application Discontinuation
- 1997-10-17 KR KR10-1999-7003290A patent/KR100503107B1/en not_active IP Right Cessation
- 1997-10-17 AU AU51211/98A patent/AU722529B2/en not_active Ceased
- 1997-10-17 EP EP97945872A patent/EP0960180B1/en not_active Expired - Lifetime
- 1997-10-17 HU HU0000452A patent/HUP0000452A3/en unknown
- 1997-10-17 CN CN97199344A patent/CN1079822C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013093104A1 (en) | 2011-12-22 | 2013-06-27 | Shell Internationale Research Maatschappij B.V. | Grease composition |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA979263B (en) | 1998-05-25 |
| KR100503107B1 (en) | 2005-07-25 |
| DE69740119D1 (en) | 2011-03-24 |
| SK48099A3 (en) | 2000-03-13 |
| HUP0000452A2 (en) | 2000-08-28 |
| CA2268286A1 (en) | 1998-04-30 |
| CN1079822C (en) | 2002-02-27 |
| BR9711936A (en) | 1999-09-21 |
| AU5121198A (en) | 1998-05-15 |
| CO4890881A1 (en) | 2000-02-28 |
| EP0960180B1 (en) | 2011-02-09 |
| HUP0000452A3 (en) | 2000-11-28 |
| AR009120A1 (en) | 2000-03-08 |
| MY115558A (en) | 2003-07-31 |
| JPH10121080A (en) | 1998-05-12 |
| CN1235631A (en) | 1999-11-17 |
| SK286548B6 (en) | 2008-12-05 |
| WO1998017748A1 (en) | 1998-04-30 |
| AU722529B2 (en) | 2000-08-03 |
| TR199900840T2 (en) | 1999-07-21 |
| EP0960180A1 (en) | 1999-12-01 |
| KR20000049192A (en) | 2000-07-25 |
| CA2268286C (en) | 2006-05-09 |
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