EP1390458A1 - Schmierfett, ihre herstellung und ihre verwendung insbesondere zur schmierung von elastomeren - Google Patents
Schmierfett, ihre herstellung und ihre verwendung insbesondere zur schmierung von elastomerenInfo
- Publication number
- EP1390458A1 EP1390458A1 EP02738212A EP02738212A EP1390458A1 EP 1390458 A1 EP1390458 A1 EP 1390458A1 EP 02738212 A EP02738212 A EP 02738212A EP 02738212 A EP02738212 A EP 02738212A EP 1390458 A1 EP1390458 A1 EP 1390458A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- grease
- esters
- mixture
- grease according
- 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.)
- Withdrawn
Links
- 239000004519 grease Substances 0.000 title claims abstract description 70
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 18
- 229920001971 elastomer Polymers 0.000 title claims description 21
- 239000000806 elastomer Substances 0.000 title claims description 16
- 238000002360 preparation method Methods 0.000 title claims description 5
- 239000000203 mixture Substances 0.000 claims abstract description 48
- 150000002148 esters Chemical class 0.000 claims abstract description 41
- 239000002562 thickening agent Substances 0.000 claims abstract description 28
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 22
- 239000000194 fatty acid Substances 0.000 claims abstract description 22
- 229930195729 fatty acid Natural products 0.000 claims abstract description 22
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 claims abstract description 21
- -1 fatty acid ester Chemical class 0.000 claims abstract description 14
- 239000000314 lubricant Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 41
- 239000000377 silicon dioxide Substances 0.000 claims description 19
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical group O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 14
- 239000000440 bentonite Substances 0.000 claims description 13
- 229910000278 bentonite Inorganic materials 0.000 claims description 13
- 230000008719 thickening Effects 0.000 claims description 13
- 239000000654 additive Substances 0.000 claims description 12
- 238000005461 lubrication Methods 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 claims description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 10
- 150000004665 fatty acids Chemical class 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 239000002671 adjuvant Substances 0.000 claims description 9
- 239000004927 clay Substances 0.000 claims description 9
- 238000010348 incorporation Methods 0.000 claims description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- JNYAEWCLZODPBN-UHFFFAOYSA-N 2-(1,2-dihydroxyethyl)oxolane-3,4-diol Polymers OCC(O)C1OCC(O)C1O JNYAEWCLZODPBN-UHFFFAOYSA-N 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 125000000962 organic group Chemical group 0.000 claims description 6
- 230000035515 penetration Effects 0.000 claims description 6
- JNYAEWCLZODPBN-CTQIIAAMSA-N sorbitan Polymers OCC(O)C1OCC(O)[C@@H]1O JNYAEWCLZODPBN-CTQIIAAMSA-N 0.000 claims description 6
- 239000001593 sorbitan monooleate Substances 0.000 claims description 6
- 229940035049 sorbitan monooleate Drugs 0.000 claims description 6
- 235000011069 sorbitan monooleate Nutrition 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000000084 colloidal system Substances 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 230000008961 swelling Effects 0.000 claims description 4
- 239000003963 antioxidant agent Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 235000021314 Palmitic acid Nutrition 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- 235000021355 Stearic acid Nutrition 0.000 claims 1
- 229940093476 ethylene glycol Drugs 0.000 claims 1
- 235000021313 oleic acid Nutrition 0.000 claims 1
- 150000002889 oleic acids Chemical class 0.000 claims 1
- IPCSVZSSVZVIGE-UHFFFAOYSA-N palmitic acid group Chemical group C(CCCCCCCCCCCCCCC)(=O)O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 claims 1
- 239000003925 fat Substances 0.000 description 12
- 238000012360 testing method Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 239000005060 rubber Substances 0.000 description 5
- 239000000344 soap Substances 0.000 description 5
- 238000009472 formulation Methods 0.000 description 4
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 2
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 2
- 239000002199 base oil Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000032050 esterification Effects 0.000 description 2
- 238000005886 esterification reaction Methods 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- 239000000600 sorbitol Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 239000003981 vehicle Substances 0.000 description 2
- HNNQYHFROJDYHQ-UHFFFAOYSA-N 3-(4-ethylcyclohexyl)propanoic acid 3-(3-ethylcyclopentyl)propanoic acid Chemical compound CCC1CCC(CCC(O)=O)C1.CCC1CCC(CCC(O)=O)CC1 HNNQYHFROJDYHQ-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229920001967 Metal rubber Polymers 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- WERKSKAQRVDLDW-ANOHMWSOSA-N [(2s,3r,4r,5r)-2,3,4,5,6-pentahydroxyhexyl] (z)-octadec-9-enoate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO WERKSKAQRVDLDW-ANOHMWSOSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 125000005210 alkyl ammonium group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000013556 antirust agent Substances 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 239000012990 dithiocarbamate Substances 0.000 description 1
- 150000004659 dithiocarbamates Chemical class 0.000 description 1
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid ester group Chemical group C(CCCCCCCCCCC)(=O)O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 1
- HGVHMIAKUYLQLL-UHFFFAOYSA-N ethene;propane-1,2,3-triol Chemical compound C=C.OCC(O)CO HGVHMIAKUYLQLL-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910001410 inorganic ion Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 150000002943 palmitic acids Chemical class 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 1
- 229910000269 smectite group Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical class [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 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
- C10M169/02—Mixtures of base-materials and thickeners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
- B60C17/04—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
- B60C17/10—Internal lubrication
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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
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
- C10M105/32—Esters
- C10M105/40—Esters containing free hydroxy or carboxyl groups
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- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
- C10M107/30—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M107/32—Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
- C10M107/34—Polyoxyalkylenes
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- C10M113/00—Lubricating compositions characterised by the thickening agent being an inorganic material
- C10M113/10—Clays; Micas
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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
- C10M113/00—Lubricating compositions characterised by the thickening agent being an inorganic material
- C10M113/12—Silica
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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
- C10M113/00—Lubricating compositions characterised by the thickening agent being an inorganic material
- C10M113/16—Inorganic material treated with organic compounds, e.g. coated
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M117/00—Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof
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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
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/102—Silicates
- C10M2201/103—Clays; Mica; Zeolites
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/102—Silicates
- C10M2201/103—Clays; Mica; Zeolites
- C10M2201/1036—Clays; Mica; Zeolites 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
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/105—Silica
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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
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/14—Inorganic compounds or elements as ingredients in lubricant compositions inorganic compounds surface treated with organic compounds
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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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- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/14—Inorganic compounds or elements as ingredients in lubricant compositions inorganic compounds surface treated with organic compounds
- C10M2201/145—Inorganic compounds or elements as ingredients in lubricant compositions inorganic compounds surface treated with organic compounds used as thickening agents
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- 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
- C10M2207/02—Hydroxy compounds
- C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/106—Carboxylix acids; Neutral salts thereof 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
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- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/1206—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms used as thickening agents
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- 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
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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
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/129—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more carbon atoms
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Definitions
- Lubricating grease its preparation and its use, in particular for the lubrication of contacts involving elastomers.
- the present invention relates to a. lubricating grease, ie a solid to semi-fluid lubricating composition at ambient temperature and pressure. More specifically, the present invention relates to a grease which is particularly suitable for the lubrication of contacts in which friction occurs between a metal and an elastomer such as for example rubber. The present invention also aims to provide methods for preparing such a lubricating grease, as well as uses of this grease in applications in which it proves to be particularly effective.
- US Pat. No. 4,298,481 describes a fat comprising from 80 to 94% by weight of a base oil consisting of a diester (obtained from C 5 to C 6 alcohols and hydrogenated C 32 dimer acids to C52), from 0.2 to 6% by weight of a mixture of additives including, inter alia, from 0.08 to 2% of an anti-rust agent (preferably sorbitan monooleate) and 5 at 20% by weight of a thickening agent based on modified clay (preferably bentonite) grafted with organic groups.
- This grease has the advantage of retaining its properties in the event of prolonged use at high temperatures (above 200 ° C), and it is particularly suitable for use in aircraft or rocket engines.
- US Patent 3,647,690 describes a lubricating grease consisting of a natural or synthetic base oil, thickened with a lithium soap, and whose anti-rust properties are improved by incorporating from 2 to 5% by weight of an agent anti-corrosion consisting of a metal salt of naphthenic or aromatic acid combined with a surfactant of coefficient HLB ("hydrophilic-lipophilic balance") between 1 and 6.
- HLB hydrophilic-lipophilic balance
- surfactant it is particularly recommended to use alkylated and ethoxylated phenols, or esters of fatty acids and sorbitol (in particular sorbitol monooleate).
- patent ES 8801941 describes a process for the manufacture of greases with a high drop point, by thickening of various conventional fluids to which are added, at a temperature between 5 and 100 ° C., from 3 to 20 % by weight of a thickener based on silica and from 0.3 to 6% by weight of a stabilizing agent.
- the base fluids can be chosen from nine main families of oils, including, among others, a family of oils based on polyol esters (comprising from 1 to 4 hydroxyl groups). and monoacids (comprising from 4 to 20 carbon atoms).
- the corresponding example (Example 4) describes the manufacture of a grease from an ester of pentaerythritol, which is a compound which is particularly aggressive with regard to rubbers. Such a grease is therefore absolutely not usable for the lubrication of the contacts in which an elastomer intervenes.
- the greases known in the prior art are very poorly suited to the lubrication of the friction contacts between a metal and an elastomer.
- the Applicant has developed a composition which makes it possible to respond to the aforementioned problem.
- the Applicant has developed new grease compositions based on a mixture of two types of sorbitan esters in which a thickening agent is incorporated, which have been found to be particularly interesting products, having excellent properties. both lubricity and mechanical and thermal stability.
- the Applicant has developed a lubricating grease, characterized in that it comprises:
- the grease according to the present invention has the substantial advantage of being perfectly compatible with elastomers and plastics. It is even particularly suitable for lubricating contacts involving this type of material, for example contacts between metals and elastomers, or between various types of elastomers or plastics.
- the grease according to the present invention has all the conventional properties usually required for greases, including in particular excellent lubricating properties, very good mechanical stability, a high drop point, a stable consistency over a wide range. temperature range.
- this grease can be used to lubricate contacts between very diverse materials, and its use cannot be limited to the lubrication of contacts in which elastomers intervene.
- Other advantages of the present invention will emerge on reading the preferred embodiments described in more detail below.
- the fat according to the present invention consists mainly of a mixture of at least two types of esters derived from sorbitan.
- sorbitan well known to those skilled in the art, designates a cyclic tetraol which is an anhydride of sorbitol and can be obtained by dehydration of the latter.
- tetraol is meant a polyol comprising 4 hydroxyl groups.
- the first ester is obtained by esterification of one or more fatty acids and sorbitan.
- the second ester is obtained either by esterification of one or more fatty acids and of one or more polyoxyalkylated derivatives of sorbitan, or by polyoxyalkylation of esters of one or more fatty acids and of sorbitan.
- the polyoxyalkylated group comprises from 1 to 50, preferably 1 to 30 units.
- the alkyl unit comprises from 1 to 6, from preferably 2 to 4 carbon atoms.
- the polyoxyalkylated groups present in the second ester comprise at least one polyethoxy group.
- Each of the two types of ester can include monoesters or polyesters.
- said esters are chosen so that the mixture of the two types of esters is liquid at 25 ° C. and atmospheric pressure.
- fatty acids can enter into the composition of said esters.
- the fatty acids entering into the composition of said first ester can be identical, or different from those entering into the composition of said second ester.
- These fatty acids which can be linear or branched, saturated or unsaturated, advantageously contain from 6 to 18 carbon atoms, and preferably from 12 to 18 carbon atoms.
- said fatty acids can be chosen from lauric and palmitic acids. stearic. oleic.
- said first ester comprises sorbitan monooleate.
- said second ester comprises polyethoxylated sorbitan monooleate.
- the mixture of the two types of esters comprises for example from 20 to 80% by weight, advantageously from 30 to 70% by weight, and preferably from 40 to 60% by weight of said first ester (fatty acid ester of sorbitan ), and for example from 20 to 80%, advantageously from 30 to 70%> by weight and preferably from 40 to 60% by weight of said second ester (fatty acid ester of polyoxyalkylated sorbitan). Even more preferably, the quantities by weight, in the mixture, of each of the two types of esters, are substantially equal.
- the grease according to the present invention also comprises at least one thickening agent, the function of which is to give it its solid texture.
- the content of thickening agent depends on the hardness desired for the grease, and is between 5 and 30% by weight, and preferably between 10 and 20% by weight. Those skilled in the art will perfectly know how to optimize the content of thickening agent within this range in order to obtain the required degree of hardness.
- the thickening agent can be chosen from lithic soaps, calcium soaps, thickeners based on polyurea, silica, clay.
- the thickening agent comprises at least one clay grafted with organic groups.
- this clay is bentonite.
- bentonite designates, in a manner known per se, a clay material essentially comprising clays from the smectite group (see for this purpose "Ullmann's
- This type of clays has the property of swelling in an aqueous medium, and it is usual to modify these clays by grafting organic groups, in order to obtain materials capable of being dispersed in organic medium. Grafting is generally carried out by ion exchange, replacing the inorganic ions naturally present on the surface of the clay with ions of the alkyl ammonium type.
- the thickening agent comprises from 70 to 100%> by weight of silica.
- silica denotes, in a manner known per se, silicon oxide.
- the silica used advantageously has a high specific surface, preferably greater than or equal to 150 m 2 / g. It is particularly advantageous to use a colloidal silica, such as that which is obtained by flame hydrolysis of silicon chloride (SiCl 4 ) in the gas phase.
- a silica is used, the composition of which is suitable for polar media.
- the silica thickener can thus comprise up to 30% of other components, which are preferably other oxides. These preferably include aluminum oxide.
- the silica when it is used as a fat thickener, an adjuvant whose function is to increase the thickening power of the silica, by forming hydrogen bonds between the silanol groups present in the surface of the silica particles.
- the fat according to the invention advantageously comprises such an adjuvant, with a content of between 0.5 and 2% by weight relative to the total weight of the fat.
- this adjuvant can be chosen from water, glycerol, ethylene glycerol, glycol, ethylene glycol.
- Polyethoxylated sorbitan stearates or polystearates can advantageously fulfill this function of adjuvant while, if necessary, forming part of the mixture of esters constituting the base of the fat (alone or in mixture with d 'other polyalkoxylated fatty acid esters).
- the grease has the additional advantage of being perfectly environmentally friendly. Indeed, these two fat formulations are biodegradable, and above all do not entail a risk of pollution of the groundwater.
- the polluting character with respect to groundwater can be quantified by means of the so-called WGK index (from the German "assertdistst"), as defined in the German ministerial directive of 18 April 1996 (Bundes the der réelle, für personnel, Naturschutz und ReaktorScience; Nerwaltung Norschrift Wassergefahrdende Stoffe, 18 April 1996).
- the two grease formulas described above, in which the thickener is based on organic bentonite or silica have a WGK index equal to 1, which reflects their non-polluting character.
- the grease according to the present invention can also comprise, in addition to the mixture of esters and the thickening agent, a certain number of additives usually employed in lubricating compositions. These additives are generally incorporated in small quantities, in order to improve certain particular properties, depending on the application for which the grease is intended.
- the fat can advantageously comprise from 0.25 to 1.5% by weight of an antioxidant additive, which can be chosen from among other conventional antioxidant additives which are phenolic or amino compounds, metal dithiocarbamates, dithiophosphates metal.
- an antioxidant additive which can be chosen from among other conventional antioxidant additives which are phenolic or amino compounds, metal dithiocarbamates, dithiophosphates metal.
- additives may be incorporated into the grease according to the invention, in particular anti-corrosion additives, anti-rust additives, metal passivators, friction modifiers, adhesion agents, pour point improvement additives.
- the grease according to the present invention has a grade which of course depends on the intended application.
- the grade of a grease is, in a manner well known to specialists, usually determined by means of a test called "cone penetration test", carried out in accordance with standard ASTM D-217.
- the grease according to the invention advantageously has a cone penetration between 265 and 340 l / 10 th mm.
- the drop point of the fat is preferably sufficiently high to allow it not to liquefy and to continue to perform its function when the temperature increases.
- the grease preferably resists local increases in temperature which are sometimes significant, and which are due to the phenomena of heating linked to friction between the materials in contact.
- the grease according to the invention advantageously has a drop point greater than or equal to 200 ° C, and which can be for example of the order of 260 ° C.
- the drop points cited are measured in accordance with standard IP-396.
- the fats according to the present invention can be prepared in various ways.
- This is advantageously carried out by carrying out a first step of mixing said first and second esters (fatty acid ester of sorbitan and fatty acid ester of polyoxyalkylated sorbitan), followed by a second thickening step comprising the incorporation of the thickening agent and the mixture under conditions suitable for causing thickening.
- the conditions under which the second thickening step is carried out depends on the type of thickener used and the grade required.
- the thickening agent when the thickening agent is based on bentonite grafted by organic groups, it is customary to use a swelling agent of polar type, which makes it possible to facilitate the swelling of the bentonite by deployment of the organic chains grafted to its surface.
- a swelling agent of polar type which makes it possible to facilitate the swelling of the bentonite by deployment of the organic chains grafted to its surface.
- Various compounds can be used for this purpose, for example water, an alcohol, acetone, propylene carbonate.
- the amount of blowing agent used is preferably of the order of approximately 10% relative to the weight of grafted bentonite.
- the thickening step can then be carried out as follows: - dispersion of the grafted bentonite in the liquid mixture of the two esters, at a temperature of 30 to 60 ° C. and with stirring, heating to a temperature of 30 to 60 ° C, and, at this temperature, addition of a blowing agent in an amount between 5 and 20% by weight relative to the weight of bentonite, - stirring at a temperature of 30 to 60 ° C under a high shear rate , for 1 to 4 hours,
- the thickening step can be carried out as follows:
- the grease object of the present invention can be used as a lubricant in extremely diverse applications. It makes it possible to lubricate with very good efficiency contacts in which very diverse materials, metallic or not, can intervene.
- the grease according to the invention is particularly suitable for the lubrication of contacts involving one or more materials based on elastomers, synthetic or natural (for example rubber), or even plastics.
- An example of application in which the grease according to the invention is particularly effective relates to the lubrication of metal-rubber friction contacts which may occur in anti-rim systems for tires.
- Some of these systems are based on the presence, between the tire and the rim, of a steel boss, on which the tire comes to bear in the event of a puncture, which on the one hand makes it possible to avoid raking, and on the other hand to continue driving without the need to immediately change the wheel.
- the vehicle can thus cover an additional distance of up to 200 km, at a maximum speed of 80 km.h "1.
- such a system is only effective insofar as the contact between the metal boss and the tire rubber is sufficiently lubricated, in order to avoid too rapid destruction of the tire by friction and overheating in contact with the boss.
- the grease according to the invention represents a solution particularly suited to this problem: compatible with the rubbers of which the tires are made, it ensures effective lubrication between the tire and the boss. It is therefore sufficient to place a layer of grease on the external surface of the anti-deflection boss and / or on the internal surface of the tire. can have a high drop point, it can remain solid at the maximum temperatures (of the order of 160 ° C) likely to be reached inside a tire in operation no rmal (i.e. not punctured). Thus, the layer of grease does not liquefy, and remains in place without degrading throughout the life of the tire until the moment of a possible puncture (moment from which it begins to perform its function of lubricant).
- the invention also provides a vehicle wheel comprising a tire and a rim, and between them a metal boss on which the tire comes to bear in the event of a puncture, and further comprising on the external surface of the boss and / or on the internal surface of the tire a grease according to the invention.
- 326 g of sorbitan monooleate and 326 g of polyethoxylated sorbitan monooleate (POE20) are introduced into a mixer. 180 g of 12-hydrostearic acid are then added, and the mixture is heated until the acid melts, then 144 g of a 10% solution of lithium hydroxide are added. The mixture is then heated to 195 ° C., then cooled to 80 ° C. by addition of 652 g of the 50/50 polyethoxylated sorbitan / sorbitan mixture by weight. The fat is then ground in a Fryma colloid mill.
- sorbitan monooleate 582 g of sorbitan monooleate and 582 g of polyethoxylated sorbitan monooleate are introduced into a mixer.
- 270 g of organomodified bentonite are added, which are dispersed for 1 hour, at room temperature, in the mixture of the two sorbitan esters.
- 30 g of propylene carbonate are then added, and the mixture is brought to a temperature of 45 ° C., mixing under a controlled shear rate.
- the product is mixed at this temperature until it thickens, after which it is ground in a Fryma colloid mill.
- sorbitan monooleate 652 g of sorbitan monooleate and 652 g of polyethoxylated sorbitan monooleate are introduced into a mixer.
- the mixture is brought to 65 ° C., and 15 g of Tween 65 (silica stabilizing agent) are added, then, after 15 minutes, 180 g of a silica of composition suitable for polar media.
- Tween 65 sica stabilizing agent
- PIOO.OOO penetration into the cone of the grease processed 100,000 strokes (standard ASTM-D 217)
- the difference PIOO.OOO - P60 characterizes the mechanical stability of the grease.
- the drop point is measured in accordance with standard IP-396.
- Grease 4 is a commercial grease mentioned here for reference. It consists of a polyglycol base thickened with lithic soap, and is currently marketed, among other things, for the lubrication of contacts involving elastomers.
- Greases 1 to 3 indeed have an excellent lubricating power, which after a few minutes of testing stabilizes at a level significantly higher than that of the reference grease (grease 4).
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubricants (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0106079A FR2824331B1 (fr) | 2001-05-04 | 2001-05-04 | Graisse lubrifiante, sa preparation et son utilisation, notamment pour la lubrification des contacts faisant intervenir des elastomeres |
FR0106079 | 2001-05-04 | ||
PCT/FR2002/001544 WO2002090473A1 (fr) | 2001-05-04 | 2002-05-03 | Graisse lubrifiante, sa preparation et son utilisation, notamment pour la lubrification des contacts faisant intervenir des elastomeres |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1390458A1 true EP1390458A1 (de) | 2004-02-25 |
Family
ID=8863051
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02738212A Withdrawn EP1390458A1 (de) | 2001-05-04 | 2002-05-03 | Schmierfett, ihre herstellung und ihre verwendung insbesondere zur schmierung von elastomeren |
Country Status (8)
Country | Link |
---|---|
US (1) | US7141535B2 (de) |
EP (1) | EP1390458A1 (de) |
JP (1) | JP4234442B2 (de) |
KR (1) | KR100873839B1 (de) |
BR (1) | BR0209514A (de) |
CA (1) | CA2446065A1 (de) |
FR (1) | FR2824331B1 (de) |
WO (1) | WO2002090473A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1986872A4 (de) * | 2006-02-16 | 2011-05-04 | Michelin Soc Tech | Schmierung eines run-flat-reifen-systems |
US7304020B1 (en) * | 2006-08-21 | 2007-12-04 | Dmitry Tananko | Nano-particle metal treatment composition for creating a ceramic-metal layer |
KR100721600B1 (ko) * | 2007-01-12 | 2007-05-23 | 주식회사 한국하우톤 | 바이오디젤 생산 시 생성되는 증류 잔류물을 이용한생분해성 그리스 조성물 |
US20100210487A1 (en) * | 2009-02-16 | 2010-08-19 | Chemtura Coproration | Fatty sorbitan ester based friction modifiers |
US9296969B2 (en) | 2009-02-16 | 2016-03-29 | Chemtura Corporation | Fatty sorbitan ester based friction modifiers |
EP2702122B1 (de) | 2011-06-17 | 2021-09-01 | Biosynthetic Technologies, LLC | Schmierfettzusammensetzungen mit estolidgrundölen |
KR101464463B1 (ko) * | 2014-05-07 | 2014-11-26 | 그린루브 주식회사 | 썬루프 모터용 그리스 및 그 제조방법 |
JP6814721B2 (ja) * | 2016-12-27 | 2021-01-20 | シチズン時計株式会社 | 装飾品用潤滑処理剤、時計の製造方法および時計 |
CN112342069A (zh) * | 2020-11-30 | 2021-02-09 | 新乡市恒星科技有限责任公司 | 一种高温防粘密封润滑脂及其制备方法 |
JP2024012214A (ja) * | 2021-03-30 | 2024-01-26 | シェルルブリカンツジャパン株式会社 | グリース組成物 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2652361A (en) * | 1951-12-29 | 1953-09-15 | Shell Dev | Grease compositions |
US2980612A (en) * | 1957-08-12 | 1961-04-18 | Union Oil Co | Water-resistant non-soap greases |
US3647690A (en) * | 1969-03-25 | 1972-03-07 | Texaco Inc | Corrosion-inhibiting compositions |
US4298481A (en) * | 1979-02-23 | 1981-11-03 | Tenneco Chemicals, Inc. | High temperature grease compositions |
DE3526429A1 (de) * | 1985-07-24 | 1987-02-05 | Continental Gummi Werke Ag | Gleitmittel fuer ein fahrzeugrad |
DE3618998A1 (de) * | 1986-06-05 | 1987-12-10 | Continental Gummi Werke Ag | Gleitmittel fuer ein fahrzeugrad |
US5236606A (en) * | 1991-12-30 | 1993-08-17 | Rangel Victor D L | Process for obtaining and manufacturing lubricant greases from fumed silica and precipitated silicic acid |
FR2705678B1 (fr) * | 1993-05-24 | 1995-08-18 | Total Raffinage Distribution | Compositions de formage pour pièces en élastomère. |
-
2001
- 2001-05-04 FR FR0106079A patent/FR2824331B1/fr not_active Expired - Fee Related
-
2002
- 2002-05-03 JP JP2002587540A patent/JP4234442B2/ja not_active Expired - Fee Related
- 2002-05-03 BR BR0209514-9A patent/BR0209514A/pt not_active Application Discontinuation
- 2002-05-03 EP EP02738212A patent/EP1390458A1/de not_active Withdrawn
- 2002-05-03 KR KR1020037014391A patent/KR100873839B1/ko not_active IP Right Cessation
- 2002-05-03 WO PCT/FR2002/001544 patent/WO2002090473A1/fr active Application Filing
- 2002-05-03 US US10/476,564 patent/US7141535B2/en not_active Expired - Fee Related
- 2002-05-03 CA CA002446065A patent/CA2446065A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO02090473A1 * |
Also Published As
Publication number | Publication date |
---|---|
KR20040015713A (ko) | 2004-02-19 |
US20040127369A1 (en) | 2004-07-01 |
CA2446065A1 (en) | 2002-11-14 |
WO2002090473A1 (fr) | 2002-11-14 |
FR2824331A1 (fr) | 2002-11-08 |
FR2824331B1 (fr) | 2004-01-16 |
US7141535B2 (en) | 2006-11-28 |
KR100873839B1 (ko) | 2008-12-15 |
JP4234442B2 (ja) | 2009-03-04 |
JP2004536169A (ja) | 2004-12-02 |
BR0209514A (pt) | 2004-07-13 |
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