DE2851057A1 - Bremsfluessigkeiten mit konservierender wirkung - Google Patents
Bremsfluessigkeiten mit konservierender wirkungInfo
- Publication number
- DE2851057A1 DE2851057A1 DE19782851057 DE2851057A DE2851057A1 DE 2851057 A1 DE2851057 A1 DE 2851057A1 DE 19782851057 DE19782851057 DE 19782851057 DE 2851057 A DE2851057 A DE 2851057A DE 2851057 A1 DE2851057 A1 DE 2851057A1
- Authority
- DE
- Germany
- Prior art keywords
- brake
- glycol
- brake fluids
- adduct
- acid
- 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- Withdrawn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
- 239000012530 fluid Substances 0.000 title claims description 27
- 230000002335 preservative effect Effects 0.000 title 1
- 238000005260 corrosion Methods 0.000 claims description 16
- 230000007797 corrosion Effects 0.000 claims description 16
- -1 1,2-ethylene Chemical group 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 13
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 12
- 229930195729 fatty acid Natural products 0.000 claims description 12
- 239000000194 fatty acid Substances 0.000 claims description 12
- 150000004665 fatty acids Chemical class 0.000 claims description 12
- 239000003112 inhibitor Substances 0.000 claims description 11
- 239000000306 component Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 8
- 239000000314 lubricant Substances 0.000 claims description 8
- 229920000151 polyglycol Polymers 0.000 claims description 8
- 239000010695 polyglycol Substances 0.000 claims description 8
- 229920001515 polyalkylene glycol Polymers 0.000 claims description 6
- 239000003963 antioxidant agent Substances 0.000 claims description 4
- 150000002170 ethers Chemical class 0.000 claims description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 8
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 7
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 6
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 6
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 6
- 239000005642 Oleic acid Substances 0.000 description 6
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 6
- 239000012964 benzotriazole Substances 0.000 description 6
- JQVDAXLFBXTEQA-UHFFFAOYSA-N dibutylamine Chemical compound CCCCNCCCC JQVDAXLFBXTEQA-UHFFFAOYSA-N 0.000 description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 6
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 6
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 5
- 229910001060 Gray iron Inorganic materials 0.000 description 5
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 5
- WBHHMMIMDMUBKC-XLNAKTSKSA-N ricinelaidic acid Chemical compound CCCCCC[C@@H](O)C\C=C\CCCCCCCC(O)=O WBHHMMIMDMUBKC-XLNAKTSKSA-N 0.000 description 5
- 229960003656 ricinoleic acid Drugs 0.000 description 5
- FEUQNCSVHBHROZ-UHFFFAOYSA-N ricinoleic acid Natural products CCCCCCC(O[Si](C)(C)C)CC=CCCCCCCCC(=O)OC FEUQNCSVHBHROZ-UHFFFAOYSA-N 0.000 description 5
- WFSMVVDJSNMRAR-UHFFFAOYSA-N 2-[2-(2-ethoxyethoxy)ethoxy]ethanol Chemical compound CCOCCOCCOCCO WFSMVVDJSNMRAR-UHFFFAOYSA-N 0.000 description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 4
- COBPKKZHLDDMTB-UHFFFAOYSA-N 2-[2-(2-butoxyethoxy)ethoxy]ethanol Chemical compound CCCCOCCOCCOCCO COBPKKZHLDDMTB-UHFFFAOYSA-N 0.000 description 3
- PEEKVIHQOHJITP-UHFFFAOYSA-N boric acid;propane-1,2,3-triol Chemical compound OB(O)O.OCC(O)CO PEEKVIHQOHJITP-UHFFFAOYSA-N 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical class OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- JLGLQAWTXXGVEM-UHFFFAOYSA-N triethylene glycol monomethyl ether Chemical compound COCCOCCOCCO JLGLQAWTXXGVEM-UHFFFAOYSA-N 0.000 description 2
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 description 2
- SBASXUCJHJRPEV-UHFFFAOYSA-N 2-(2-methoxyethoxy)ethanol Chemical compound COCCOCCO SBASXUCJHJRPEV-UHFFFAOYSA-N 0.000 description 1
- GVNVAWHJIKLAGL-UHFFFAOYSA-N 2-(cyclohexen-1-yl)cyclohexan-1-one Chemical compound O=C1CCCCC1C1=CCCCC1 GVNVAWHJIKLAGL-UHFFFAOYSA-N 0.000 description 1
- LIHWQRIQQMWQOH-UHFFFAOYSA-N 2h-benzotriazole;n-butylbutan-1-amine Chemical compound CCCCNCCCC.C1=CC=CC2=NNN=C21 LIHWQRIQQMWQOH-UHFFFAOYSA-N 0.000 description 1
- GCQUOBKUEHYBMC-UHFFFAOYSA-N 3-(diethylamino)-7,8-dihydro-6h-cyclopenta[2,3]thieno[2,4-b][1,3]oxazin-1-one Chemical compound O=C1OC(N(CC)CC)=NC2=C1C(CCC1)=C1S2 GCQUOBKUEHYBMC-UHFFFAOYSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 101150065749 Churc1 gene Proteins 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 102100038239 Protein Churchill Human genes 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241001558496 Talpa caeca Species 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- DTOSIQBPPRVQHS-PDBXOOCHSA-N alpha-linolenic acid Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O DTOSIQBPPRVQHS-PDBXOOCHSA-N 0.000 description 1
- 235000020661 alpha-linolenic acid Nutrition 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229940053200 antiepileptics fatty acid derivative Drugs 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical compound CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 150000002169 ethanolamines Chemical class 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 1
- 229960004232 linoleic acid Drugs 0.000 description 1
- 229960004488 linolenic acid Drugs 0.000 description 1
- KQQKGWQCNNTQJW-UHFFFAOYSA-N linolenic acid Natural products CC=CCCC=CCC=CCCCCCCCC(O)=O KQQKGWQCNNTQJW-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 229960002969 oleic acid Drugs 0.000 description 1
- 150000002924 oxiranes Chemical class 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 229960004274 stearic acid Drugs 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000005028 tinplate 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
- 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
-
- 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
- C10M105/78—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing boron
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/26—Carboxylic acids; Salts thereof
- C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M129/38—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms
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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
- C10M169/04—Mixtures of base-materials and additives
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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
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl 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
- C10M2207/12—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
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/128—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 containing hydroxy groups; Ethers 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
- 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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- 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/1033—Polyethers, i.e. containing di- or higher polyoxyalkylene groups used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
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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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
- C10M2209/1045—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/105—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only
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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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/105—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only
- C10M2209/1055—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/106—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing four carbon atoms only
- C10M2209/1065—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing four carbon atoms only used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/107—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106
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- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/107—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106
- C10M2209/1075—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106 used as base material
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- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/108—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified
- C10M2209/1085—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified used as base material
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- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/109—Polyethers, i.e. containing di- or higher polyoxyalkylene groups esterified
- C10M2209/1095—Polyethers, i.e. containing di- or higher polyoxyalkylene groups esterified used as base material
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
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- C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
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- C10M2215/22—Heterocyclic nitrogen compounds
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- C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
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- 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
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Description
Die Erfindung betrifft Bremsflüssigkeiten mit einem Gehalt an Fettsäuren.
5
5
Handelsüblichen Bremsflüssigkeiten, die den US-Normen des Federal Motor Vehicle Safety Standard FMVSS 116, DOT 3 bzw.
_ des Handbook of the Society of Automotive Engineers SAE J 1703 entsprechen, bestehen im wesentlichen aus: Glkyoläthern
als Basiskomponenten, Polyglykolen als -Schmiermittelkomponenten und enthalten Inhibitoren zwecks Korrosionsschutz
und Antioxidationsmittel.
Diese DOT-3-Bremsflüssigkeiten weisen im allgemeinen guten
Korrosionsschutz gegenüber Weißblech, Stahl, Grauguß, Messing, Kupfer und Aluminium auf. Der Korrosionsschutz ist jedoch
nur dann gewährleistet, wenn die Metalle vollständig in die Flüssigkeit eingetaucht werden oder sonst von ihr
gut benetzt werden.
20
20
Un Bremsteile, Insbesondere Radbremszylinder aus Grauguß,
nach der Herstellung und Funktionsprüfung rostfrei lagern zu können, ist die Imprägnierung mit speziellen Bremspasten
üblich.
25
25
Ein wesentlicher Nachteil dieser Bremspasten besteht darin,
daß sie bei Wiederbefüllung des Bremssystems mit Bremsflüssu
030024/0066
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/igkeit die Viskosität erheblich erhöhen, so daß die Viskosität
der eingefüllten Bremsflüssigkeit unter Umständen die maximalen Viskositäten von 1500 cSt bei -'400C wesentlich
übersteigt. Derartige Mischungen erfüllen dann nicht mehr die Anforderungen der FMVSS 116, DOT 3.
Es bestand daher die.Aufgabe, Bremsflüssigkeiten vorzuschlagen,
die gleichzeitig zur Imprägnierung verwendet werden können und die die Lagerung der Bauteile über längere Perioden
ohne Korrosion ermöglichen.
. ■■ Allein die Erhöhung der Inhibitorkonzentration bzw. die
Verwendung anderer Inhibitoren, z.B. von Fettsäuren kann zwar die korrosionsschützende Wirkung auf den benetzten
Teil erhöhen. Man erhält aber nicht Flüssigkeiten die den Anforderungen, die an Bremsenschutzflüssigkelten gestellt
werden, entsprechen. Außerdem kann man die Konzentration
der Fettsäuren oder Fettsäurederivate nur geringfügig steigern, weil diese Komponenten bei tiefer Temperatur zur Ausfällung
neigen bzw. erhöhte Gummiquellung der SBR-Manschetten
verursachen.
Es wurde nun überraschenderweise gefunden, daß Bremsflüssigkeiten auf der Grundlage von Polyglykoläthern als Baslskomponenten,
Polyglykolen als Schmiermittelkomponenten, Inhibitoren und Antioxydationsmittel der genannten Forderung genügen,
wenn sie einen Gehalt von
A) 10 bis 40 Gew.?, bezogen auf die Bremsflüssigkeit von
Polyalkylenglykolen in Form von einheitlichen Verbindungen oder Gemischen von Verbindungen der Formel I
HO-[R -0 35
0 30024/0066
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in der R einen 1,2-Äthylen- und/oder 1,2-Propylenrest,
wobei, bezogen auf die einzelne Verbindung oder das Gemisch, die Zahl der Propylenreste überwiegt und η eine
Zahl von 10 oder mehr bedeutet, und wobei das durchschnittliche Molekulargewicht 500 bis 3 000 beträgt,
und
B) 0,1 bis 3 Gew.SS einer an sich als Korrosionsinhibitor
bekannten Fettsäure 10 aufweisen.
Die hochmolekularen Polyalkylenglykole sind dabei Trägersubstanzen,
die geringe Wasserlöslichkeit aufweisen und durch hohe Llpophllität gekennzeichnet sind. Dadurch können sie
die Fettsäuren vermehrt lösen, so daß die Konzentration der Fettsäuren bis zu 3 % in der Bremsflüssigkeit betragen
kann.
Die erfindungsgemäß in den Bremsflüssigkeiten enthaltenen Polyalkylenglykole der Formel I können durch allein aus Polypropylenglykolen
bestehen, durch Mischen von vorwiegend Polypropylenglykolen mit Polyäthylenglykolen oder durch Umsetzen
von Gemischen von Äthylenoxid und (in Überschuß) ?ropylenoxid
hergestellt werden, wobei statistische Gemische von Verbindungen entstehen, die im Mittel mehr Propylenoxid
als Äthylenoxidreste enthalten und Molekulargewichte in dem angegebenen Rereich aufweisen.
Man kann aber auch Polyäthylenglykole mit Propylenoxid oder
Polypropylenglykole mit Äthylenoxid umsetzen, wobei die Ausgangs polyglykole die Menge der Alkylenoxide und die Polymerisationsbedingungen
so gewählt werden, daß Polyalkylenglykole gemäß Formel I mit den dort spezifizierten Molgewichten
von 300 bis 3000, vorzugsweise l800 bis 2200 entstehen.
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'"Zweckmäßig geht man zur Herstellung der Polyalkylenglykole
der Formel I im einzelnen so vor, daß ein Epoxid-Gemisch, bestehend aus den jeweils gewünschten .Molverhältnissen Ethylenoxid
und Propylenoxid nach an sich bekannten Methoden polymerisiert wird.
Als Korrosionsinhibitoren zuzusetzende Fettsäuren kommen
vor allem C. ote in Betracht,
vor allem C-. „- bis C?^-Monocarbonsäuren oder deren Deriva-
Im einzelnen kommen Fettsäuren mit und ohne olefinische
Doppelbindungen insbesondere C g-Fettsäuren in Betracht. Geeignete
Fettsäuren sind z.B. ölsäure, Ricinolsäure, Stearinsäure, Linolsäure oder Linolensäure.
15
15
Als Basiskomponenten kommen die in Bremsflüssigkeiten üblichen
Polyglykoläther der Formel II
R1^O-(CH-CHn-O
20 Rd
,2 2
in Betracht, in der R einen niedermolekularen Alkylrest,
2
vorzugsweise Methyl, R Wasserstoff oder Methyl und η die
vorzugsweise Methyl, R Wasserstoff oder Methyl und η die
Zahlen 2 bis 4 bedeutet. Im einzelnen seien genannt:
rfethyldiglykol CH3O(CH2CH2O)2H
Methyltriglykol CH3O(CH2CH2O)3H
Methyldiglykol oxpropyliert CH-O(CH0CH0O) (CH-)(CHCH0O) H
\ χ + y = 3 bis 6
30 Äthyldiglykol C2H
Sthyl-tri-glykol C2H
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rAls weitere Inhibitoren und als Antioxydationsmittel kommen
ebenfalls an sich bekannte Verbindungen in Betracht, wie sie z.B. in der US-Patentschrift 3 711 410, Spalten 9 bis
11 im einzelnen aufgeführt sind. Insbesondere sind zu nennen:
Benzotriazol, Imidazol, Imidazolin, prim., sek. Amine, Kthanolamine,
Bisphenol A, Triphenylphosphit oder 2 ,'t-Di-tert.- -butyl-kresol.
Die erfindungsgeraäßen Bremsflüssigkeiten können auch Borsäureester
von Glykoläthern der Formel II enthalten, z.B. in Mengen von 20 bis 50 Gew.%. Geeignete Borsäureester sind
z.B. Methyl-tri-glykol-ortho-borat, Xthyl-tri-glykol-ortho-
15 -borat, MethyWAthyl-di/tri-ortho-borat.
Weitere Boresterverbindungen sind in der US-Patentschrift
3 711 410 in einzelnen beschrieben.
Zur Untersuchung der imprägnierenden Wirkung der erfindungs*-
gemäßen Bremsflüssigkeiten werden Radbremszylinder aus Grauguß längsseitig halbiert, mit Isopropanol gereinigt und gut
getrocknet. Man taucht dann den halbierten Bremszylinder jeweils 5 Sekunden in die handelsübliche Bremsflüssigkeit
bzw. in die Bremsflüssigkeiten mit verbessertem Korrosionsschutz ein, läßt 5 Sekunden abtropfen und lagert sie in
einem geschlossenen Gefäß über einer wasserdampfgesättigten Atmosphäre. Hierbei zeigt sich, daß bei Verwendung handelsüblicher
Bremsflüssigkeiten bereits nach wenigen Stunden ein starkes Rosten der Graugußteile beobachtet werden kann.
Bei den erfindungsgemäßen Flüssigkeiten wird hingegen der Ansatz von Rost, selbst nach einer Lagerung von 30 Tagen
über der wasserdampfgesättigten Atmosphäre bei Raumtemperatur vermieden.
030024/0066
CO
α»
Beispiele erfindungsgemäßer Bremsflüssigkeiten
ο ω ο ο
O O CO
| Bsp. | Verb.d. Formel I |
% | Mischung aus Polypropy- lenglykol m. Mol.Gew. 2000 + 900 (1:1) |
weitere Polygly- kole |
% | EO/PO-Addukt mit Mol.Gew. 300 aus 90% PO/10% EO |
Polygly- koläther |
% | Äthyldigly- kol Äthyltrigly- kol Methyltri- Klykol |
Fettsäure od. Deri vat |
% | Ölsäure | weitere äisätze |
% | Glycerln- Boräure- Addukt, Benzotria- zol |
| 10 | PO/EO-Addukt mit MW 1800 u. KVEO- Addukt MV/ 2000 8055 PO/ 20% EO |
20 | EO/PO-Addukt aus 405? EO 25% PO (2:1) in Butyltri- glykol |
65 | Athyldlgly- kol Kthyltrl- glykol Methyltri- glyl<Dl |
1 | ölsäure/ Ricinolsäure |
i| | Di-tert,-Bu- tylphenol, Benzotriazol, Dibutylamin- Glycerin-Bör- säureaddukt |
||||||
| 1 | 15 | PO/EO-Addukt MW 3000 P0/E0 70:30 |
15 | 65 | Sthyldi- glykol |
2 | Ricinolsäure | 3 | Triäthanol- atnin Triphe- nylphosphit Benzotriazol Dibutylamin |
||||||
| 2 | 20 | PO/EO-Addukt MW 2500, 10% PO 90? EO |
- | PO/EO-Addukt MW 300 50% EO 50% EO |
75 | Methyldlgly- kol Sthyltri- glykol Butyltrigly- kol |
2 | Ricinolsäure Glykoläther |
3 | Dibutylamin Benzotriazol 2-Hydroxy- äthyllmida- zol Glycerln- Borsäure- Addukt |
|||||
| 3 | 17,5 | 2,5 | 75 | 2 5 | 2,5 | ||||||||||
% = stets Gew.%
O Ul O
cn
BASF Aktiengesellschaft -8- O. Z. 0050/033522
rZum Vergleich mit üblichen Bremsflüssigkeiten wurden folgende
Versuche durchgeführt:
1. Feuchtigkeitskorrosionstest mit der SAE RM 1 Reference- -Fluid: Bereits nach wenigen Tagen war starke Korrosion
der Graugußbremszylinder festzustellen.
2. Verwendung einer handelsüblichen Bremsflüssigkeit gemäß DOT 3 der folgenden Zusammensetzung: 20 % Polyglykol,
Mol.-Verh. EO/PO 2:4, Mol.-Gew. 300 20 % Triäthylenglykol,
5 % Butyltriglykol, 25 % Äthyltriglykol,
29,4 % Äthyldlglykol, 0,25 % Dibutylamin, 0,30 % Bis- ■
phenol A, 0,05 % Benzotriazol. Mach wenigen Stunden bis zwei Tagen war starker Rostansatz auf den Grauguß-
15 'teilen zu beobachten.
3. Verwendung von einer Bremsflüssigkeit bestehend aus
ca. 70 Gewichtsteilen Glykoläther, 25 % eines handelsüblichen Schmiermittels auf E0/P0-Basls, (Molverhältnis
2:1, Molgewicht 1100) 3 * einer Mischung von Korrosionsinhibitoren
aus Benzotriazol, Dodecylamin, Triäthanolamin und 2 % ölsäure. (Die ölsäure scheidet
sich beim Abkühlen teilweise aus; es tritt eine Trübung ein.) Nach ca. 8 Stunden konnte Rostansatz beob-
25 achtet werden.
4. Es wurde die gleiche Mischung wie unter 3· angegeben verwendet, nur wurden anstelle der 25 * Schmiermittel
nur 15 » Schmiermittel verwendet und 10 % eines PO-Adduktes
in Kombination mit einem PO/EO-Addukt. (Zusammensetzung 90 % PO/10 % EO, mittlerer MG 2000) Im Korrosionsversuch
zeigte sich nach 30 Tagen keinerlei Rostansatz.
030024/006 6
BASF Aktiengesellschaft -9- O. Z. 0050,
1B. 25/5 Polypropylenglykol mit Molgewicht 900, 20 % Xthyl- Ί
triglykol, 30 % Xthyldiglykol, 2 % Ölsäure, 1,5 % Dibutylamin,
4 % eines Glycerin-Borsäureadduktes, 0,05 %
. Benzotriazol und 17,45 % Methyltriglykol. Die Viskositat bei -'1O0G betrug 1276 cSt, der· Kochpunkt 215°C,
. Benzotriazol und 17,45 % Methyltriglykol. Die Viskositat bei -'1O0G betrug 1276 cSt, der· Kochpunkt 215°C,
pH-Wert 9,3. Die Flüssigkeit entspricht SAE J 1703. Im
Feuchtigkeitskorrosionstest nach 30 Tagen kein Rostansatz.
6. Im Feuchtigkeitskorrosionstest ergab eine Bremsflüssigkeit bestehend aus: 10 % eines Polypropylenglykols vom
Molgewicht ca. 1000, 7,5 % eines Polypropylenglykols,
ca. Molgewicht 2000; 7,5 % eines Schmiermittels bestehend aus ca. 3 Molen Äthylenoxid und 3 Molen Propylenoxid, 20 % Kthyltriglykol, 30 % Äthyldlglykol, 0,5 %
ca. Molgewicht 2000; 7,5 % eines Schmiermittels bestehend aus ca. 3 Molen Äthylenoxid und 3 Molen Propylenoxid, 20 % Kthyltriglykol, 30 % Äthyldlglykol, 0,5 %
Rizlnolsäure, 0,05 % Benzotriazol, 4,3 * Korrosionsinhibitor
(Umsetzungsprodukt aus Glycerin mit Borsäureester) 1 % Dibutylamin, ca. 20 % Methyltrilglykol. Das
Produkt weist eine Viskosität von 1175 cSt bei -'100C
auf, einen Kochpunkt von 2180C, pH-Wert 9,7] nach
30 Tagen keinen Rostansatz. Wird anstelle des Polypropylenglykols mit Molgewicht ca.. 1000 + Polypropylenglykol
mit Molgewicht ca. 2000 und dem EO/PO-Addukt ein
handelsübliches Schmiermittel eingesetzt, so tritt bereits nach wenigen Tagen starker Korrosionsansatz ein.
handelsübliches Schmiermittel eingesetzt, so tritt bereits nach wenigen Tagen starker Korrosionsansatz ein.
03Q024/006
Claims (1)
- BASF Aktiengesellschaft ' O. Z. 0050/033522Tatentanspruch ΊBremsflüssigkeiten auf der Grundlage von Polyglykoläthern als Basiskomponenten, Polyglykolen als Schmiermittelkompo- · nenten, Inhibitoren und Antioxydationsmittel, gekennzeichnet durch einen Gehalt vonA) 10 bis 40 Gew.?, bezogen auf die Bremsflüssigkeit von Polyalkylenglykolen in Fora von einheitlichen Verbindüngen oder Gemischen von Verbindungen der Formel IHO—£r - Oin der R einen 1,2-Äthylen- und/oder 1,2-Propylenrest, wobei, bezogen auf die einzelne Verbindung oder das Gemisch, die Zahl der Propylenreste überwiegt und η eine Zahl von 10 oder mehr bedeutet, und wobei das durchschnittliche Molekulargewicht 500 bis 3 000 beträgt, undB) 0,1 bis 3 Gew.? einer an sich als Korrosionsinhibitor bekannten Fettsäure.35 549/77 Hp/MI, 15-11.780 3002A/0066
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19782851057 DE2851057A1 (de) | 1978-11-25 | 1978-11-25 | Bremsfluessigkeiten mit konservierender wirkung |
| EP79104326A EP0011730B2 (de) | 1978-11-25 | 1979-11-06 | Bremsflüssigkeiten mit konservierender Wirkung mit einem Gehalt an Ölsäure |
| DE7979104326T DE2963824D1 (en) | 1978-11-25 | 1979-11-06 | Brake fluids having a conserving activity and an amount of fatty acids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19782851057 DE2851057A1 (de) | 1978-11-25 | 1978-11-25 | Bremsfluessigkeiten mit konservierender wirkung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2851057A1 true DE2851057A1 (de) | 1980-06-12 |
Family
ID=6055539
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19782851057 Withdrawn DE2851057A1 (de) | 1978-11-25 | 1978-11-25 | Bremsfluessigkeiten mit konservierender wirkung |
| DE7979104326T Expired DE2963824D1 (en) | 1978-11-25 | 1979-11-06 | Brake fluids having a conserving activity and an amount of fatty acids |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE7979104326T Expired DE2963824D1 (en) | 1978-11-25 | 1979-11-06 | Brake fluids having a conserving activity and an amount of fatty acids |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0011730B2 (de) |
| DE (2) | DE2851057A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2171829C1 (ru) * | 2000-02-01 | 2001-08-10 | Открытое акционерное общество "Нижнекамскнефтехим" | Тормозная жидкость |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1227061B (it) * | 1988-09-13 | 1991-03-14 | Lubritalia Spa | Fluidi idrodinamici di sicurezza resistenti alla propagazione della fiamma e con elevata temperatura di autoaccensione e procedimento per la loro preparazione. |
| US6855676B2 (en) * | 2002-02-11 | 2005-02-15 | Ecolab., Inc. | Lubricant for conveyor system |
| WO2010053641A1 (en) * | 2008-11-07 | 2010-05-14 | Dow Global Technologies Inc. | Low viscosity functional fluids |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2434978A (en) * | 1944-04-15 | 1948-01-27 | William A Zisman | Anticorrosion additives for synthetic lubricants |
| NL302392A (de) * | 1962-12-28 | |||
| GB1388012A (en) * | 1972-02-09 | 1975-03-19 | Shell Int Research | Hydraulic fluids and their preparation |
-
1978
- 1978-11-25 DE DE19782851057 patent/DE2851057A1/de not_active Withdrawn
-
1979
- 1979-11-06 EP EP79104326A patent/EP0011730B2/de not_active Expired
- 1979-11-06 DE DE7979104326T patent/DE2963824D1/de not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2171829C1 (ru) * | 2000-02-01 | 2001-08-10 | Открытое акционерное общество "Нижнекамскнефтехим" | Тормозная жидкость |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2963824D1 (en) | 1982-11-11 |
| EP0011730B2 (de) | 1986-06-04 |
| EP0011730B1 (de) | 1982-10-06 |
| EP0011730A1 (de) | 1980-06-11 |
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