EP0028789B1 - Hydraulische Flüssigkeit mit verbesserten Eigenschaften - Google Patents
Hydraulische Flüssigkeit mit verbesserten Eigenschaften Download PDFInfo
- Publication number
- EP0028789B1 EP0028789B1 EP80106748A EP80106748A EP0028789B1 EP 0028789 B1 EP0028789 B1 EP 0028789B1 EP 80106748 A EP80106748 A EP 80106748A EP 80106748 A EP80106748 A EP 80106748A EP 0028789 B1 EP0028789 B1 EP 0028789B1
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- EP
- European Patent Office
- Prior art keywords
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- formula
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- hydraulic fluid
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- 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.)
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- 239000012530 fluid Substances 0.000 title claims abstract description 49
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 39
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims abstract description 33
- -1 boric acid ester Chemical class 0.000 claims abstract description 30
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 21
- 235000010338 boric acid Nutrition 0.000 claims abstract description 19
- 229960002645 boric acid Drugs 0.000 claims abstract description 19
- 239000003112 inhibitor Substances 0.000 claims abstract description 9
- 239000004327 boric acid Substances 0.000 claims abstract description 8
- 150000003973 alkyl amines Chemical class 0.000 claims abstract description 7
- 239000003381 stabilizer Substances 0.000 claims abstract description 7
- 125000004432 carbon atom Chemical group C* 0.000 claims description 18
- 125000000217 alkyl group Chemical group 0.000 claims description 14
- 239000007795 chemical reaction product Substances 0.000 claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 7
- JLGLQAWTXXGVEM-UHFFFAOYSA-N triethylene glycol monomethyl ether Chemical group COCCOCCOCCO JLGLQAWTXXGVEM-UHFFFAOYSA-N 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 125000003342 alkenyl group Chemical group 0.000 claims description 5
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 5
- 150000002431 hydrogen Chemical class 0.000 claims description 4
- WFSMVVDJSNMRAR-UHFFFAOYSA-N 2-[2-(2-ethoxyethoxy)ethoxy]ethanol Chemical compound CCOCCOCCOCCO WFSMVVDJSNMRAR-UHFFFAOYSA-N 0.000 claims description 3
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 2
- QPPQHRDVPBTVEV-UHFFFAOYSA-N isopropyl dihydrogen phosphate Chemical compound CC(C)OP(O)(O)=O QPPQHRDVPBTVEV-UHFFFAOYSA-N 0.000 claims description 2
- 229940093476 ethylene glycol Drugs 0.000 claims 3
- ZJBWPHQFMMXGBV-UHFFFAOYSA-N 2,6-dibutyl-6-methylcyclohexa-1,3-dien-1-ol Chemical compound CCCCC1=C(O)C(C)(CCCC)CC=C1 ZJBWPHQFMMXGBV-UHFFFAOYSA-N 0.000 claims 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 1
- 150000001346 alkyl aryl ethers Chemical class 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000007788 liquid Substances 0.000 description 8
- 238000002156 mixing Methods 0.000 description 8
- 238000009835 boiling Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical class OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 4
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 2
- 239000005639 Lauric acid Substances 0.000 description 2
- 239000005642 Oleic acid Substances 0.000 description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 2
- 235000021314 Palmitic acid Nutrition 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 229910000147 aluminium phosphate Chemical class 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 150000002334 glycols Chemical class 0.000 description 2
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 2
- 235000021313 oleic acid Nutrition 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical class C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 2
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 1
- WJFKNYWRSNBZNX-UHFFFAOYSA-N 10H-phenothiazine Chemical compound C1=CC=C2NC3=CC=CC=C3SC2=C1 WJFKNYWRSNBZNX-UHFFFAOYSA-N 0.000 description 1
- OPLCSTZDXXUYDU-UHFFFAOYSA-N 2,4-dimethyl-6-tert-butylphenol Chemical compound CC1=CC(C)=C(O)C(C(C)(C)C)=C1 OPLCSTZDXXUYDU-UHFFFAOYSA-N 0.000 description 1
- HBHVBOUUMCIGMG-UHFFFAOYSA-N 2,6-Dibutyl-p-cresol Natural products CCCCC1=CC(O)=CC(CCCC)=C1O HBHVBOUUMCIGMG-UHFFFAOYSA-N 0.000 description 1
- LZFZQYNTEZSWCP-UHFFFAOYSA-N 2,6-dibutyl-4-methylphenol Chemical compound CCCCC1=CC(C)=CC(CCCC)=C1O LZFZQYNTEZSWCP-UHFFFAOYSA-N 0.000 description 1
- SBASXUCJHJRPEV-UHFFFAOYSA-N 2-(2-methoxyethoxy)ethanol Chemical compound COCCOCCO SBASXUCJHJRPEV-UHFFFAOYSA-N 0.000 description 1
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-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
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- 239000005635 Caprylic acid (CAS 124-07-2) Substances 0.000 description 1
- KKUKTXOBAWVSHC-UHFFFAOYSA-N Dimethylphosphate Chemical compound COP(O)(=O)OC KKUKTXOBAWVSHC-UHFFFAOYSA-N 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- SYWDWCWQXBUCOP-UHFFFAOYSA-N benzene;ethene Chemical compound C=C.C1=CC=CC=C1 SYWDWCWQXBUCOP-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- OOSPDKSZPPFOBR-UHFFFAOYSA-N butyl dihydrogen phosphite Chemical compound CCCCOP(O)O OOSPDKSZPPFOBR-UHFFFAOYSA-N 0.000 description 1
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- PFURGBBHAOXLIO-UHFFFAOYSA-N cyclohexane-1,2-diol Chemical compound OC1CCCCC1O PFURGBBHAOXLIO-UHFFFAOYSA-N 0.000 description 1
- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 description 1
- WZPMZMCZAGFKOC-UHFFFAOYSA-N diisopropyl hydrogen phosphate Chemical compound CC(C)OP(O)(=O)OC(C)C WZPMZMCZAGFKOC-UHFFFAOYSA-N 0.000 description 1
- CZHYKKAKFWLGJO-UHFFFAOYSA-N dimethyl phosphite Chemical compound COP([O-])OC CZHYKKAKFWLGJO-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- ZJXZSIYSNXKHEA-UHFFFAOYSA-N ethyl dihydrogen phosphate Chemical compound CCOP(O)(O)=O ZJXZSIYSNXKHEA-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 229910001389 inorganic alkali salt Inorganic materials 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229960002446 octanoic acid Drugs 0.000 description 1
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229950000688 phenothiazine Drugs 0.000 description 1
- 150000002990 phenothiazines Chemical class 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000004053 quinones Chemical class 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 125000005270 trialkylamine group Chemical group 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 239000008096 xylene 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
- C10M169/04—Mixtures of base-materials and additives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
- 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
- C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
- C10M111/04—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a macromolecular organic compound
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
-
- 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
- C10M2207/025—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with condensed rings
-
- 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
- C10M2207/129—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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- C10N2040/08—Hydraulic fluids, e.g. brake-fluids
Definitions
- the invention relates to a hydraulic fluid based on certain boric acid esters and bis (ethylene glycol monoalkyl ether) formal.
- Hydraulic fluids especially brake fluids, have to meet stringent chemical and physical properties.
- brake fluids should have the following basic properties in particular : A high dry boiling point (reflux boiling point dry) and wet boiling point (reflux boiling point wet) as well as a viscosity that changes only slightly within a wide temperature range.
- a brake fluid should also have a number of other properties.
- Hydraulic fluids in particular brake fluids based on boric acid esters of glycols and / or glycol monoalkyl ethers, are already known which contain, as further main components, glycol monoalkyl ethers, glycol dialkyl ethers, polyglycols and / or bis (glycol ethers) formals (cf. German Patent No. 939045, the German ones Designation Nos. 1768933 and 2457097, German Offenlegungsschriften Nos. 2141441, 2257546, 2437936, 2438038, 2525403, 2532228, 2724193 and 2804535).
- the known brake fluids still leave something to be desired.
- the main reason for this is that the requirements that a brake fluid should meet include those that conflict due to the chemical and physical properties of the main components.
- the known brake fluids are formulated on the basis of boric acid esters, a profit in one important property is often bought by a relatively high loss in another important property.
- the object of the invention is therefore to provide a hydraulic fluid, in particular a brake fluid, which not only fully meets the property profile according to the standards currently required, but also meets the above-mentioned expanded requirements.
- the preparation of the boric acid esters according to component A- a reaction product of orthoboric acid, diethylene glycol and an ethylene glycol monoalkyl ether of the formula I in a molar ratio of 1: 1: 1 1 ⁇ takes place according to known procedures.
- the reaction components mentioned are reacted in a reaction vessel equipped with a stirrer and optionally with a reflux condenser at a temperature of about 50 to about 150 ° C., preferably about 110 to about 140 ° C., with the water of reaction formed being continuously removed.
- the reaction can be carried out in the presence of an inert water-azeotroping solvent such as benzene, toluene, xylene, ethylene benzene or the like.
- the water of reaction can also be removed by carrying out the reaction under reduced pressure, for example in a water jet vacuum (7 to 20 mbar).
- a water jet vacuum 7 to 20 mbar.
- the solvent which may be used is removed from the reaction product by customary distillation and, if further purification should be necessary, this is expediently vacuum-stripped at a temperature of 90 to 150 ° C.
- the product obtained in this way is the component of the hydraulic fluid according to the invention.
- ethylene glycol monoalkyl ethers of the formula I which are used for the preparation of the boric acid esters, preference is given to those in which R is a straight-chain alkyl group having 1 to 4 C atoms, preferably CH 3 or C 2 H is 5 and x is 3.
- component B of the hydraulic fluid according to the invention preference is given to those ethylene glycol monoalkyl ethers according to the formula in which R is a straight-chain alkyl group having 1 to 4 carbon atoms, preferably CH 3 or C 2 H 5 , and x 3.
- Component D of the hydraulic fluid according to the invention consists of the alkylamines of the formula 111.
- the radicals R 3 and R 6 (which can be straight-chain or branched) are: methyl, ethyl, propyl, isopropyl, butyl, isobutyl, pentyl, hexyl , Octyl (capryl), nonyl, isononyl, dodecyl (lauryl), palmityl, stearyl and oleyl.
- the alkyl and alkenyl group (R 3 , R 5 ) preferably contains 1 to 9 carbon atoms.
- the sum of the R 3 carbon atoms and R 6 is preferably not higher than 10.
- the meaning of y in formula III is preferably an integer from 1 to 3.
- Preferred alkylamines of the formula III are those in which R 3 is an alkyl group having 1 to 9 C atoms and R 4 and R 6 are hydrogen or - (CH 2 CH 2 O) y H, where y is an integer from 1 to 5, is preferably 1 to 3.
- component D are those alkylamines of the formula III in which R 3 is propyl, butyl, hexyl, octyl or isononyl, and R 4 and R 5 are the same and are hydrogen or CH 2 CH 2 OH.
- Component E of the hydraulic fluid according to the invention consists of customary additives for fluids based on boric acid esters and glycol derivatives.
- additives include stabilizers, for example pH stabilizers, and inhibitors, for example inhibitors of corrosion and oxidation (antioxidants).
- Suitable pH stabilizers are preferably those from the group of inorganic alkali salts, preferably the sodium salts of carbonic acid, phosphorous acid or phosphoric acid; Alkali salts of fatty acids, preferably the sodium salt of lauric acid, palmitic acid, stearic acid or oleic acid; Trialkanolamines, preferably triethanolamine; and trialkylamines (tertiary amines), for example dimethylcaprylamine and diethylcaprylamine.
- inorganic alkali salts preferably the sodium salts of carbonic acid, phosphorous acid or phosphoric acid
- Alkali salts of fatty acids preferably the sodium salt of lauric acid, palmitic acid, stearic acid or oleic acid
- Trialkanolamines preferably triethanolamine
- trialkylamines tertiary amines
- the pH stabilizers are preferably used in an amount of 0.1 to 4% by weight, based on the weight of the entire liquid.
- Esters of phosphorous acid or phosphoric acid with aliphatic alcohols having 1 to 6 carbon atoms preferably ethyl phosphate, dimethyl phosphate, isopropyl phosphate, diisopropyl phosphate, butyl phosphite and dimethyl phosphite; and / or triazoles, preferably benzotriazole.
- the corrosion inhibitors are preferably used in an amount of 0.05 to 1% by weight, based on the weight of the entire liquid.
- the antioxidants are preferably used in an amount of 0.05 to 1% by weight, based on the weight of the entire liquid.
- the hydraulic fluid according to the invention preferably consists essentially of
- the hydraulic fluid according to the invention is produced by mixing the components together, for example in a container with a stirring element, as a result of which a homogeneous mixture is obtained in a simple manner.
- the mixing is carried out on the shelf at atmospheric pressure and at room temperature; if necessary, it can also be carried out at a higher temperature (30 to 50 ° C.), it being expedient to keep moisture away.
- the hydraulic fluids according to the invention are particularly suitable for hydraulic brake systems, preferably of motor vehicles, for hydraulic control systems and for hydraulic transmissions.
- a brake fluid according to the invention is produced by mixing the following components:
- a brake fluid according to the invention is produced by mixing the following components:
- a brake fluid according to the invention is produced by mixing the following components:
- a brake fluid according to the invention is produced by mixing the following components:
- a brake fluid according to the invention is produced by mixing the following components:
- a brake fluid according to the invention is produced by mixing the following components:
- Example 5 (see Table 1) has been tested completely according to the specifications mentioned.
- the brake fluids according to Examples 6 to 10 were only tested for the basic properties and for swelling behavior and evaporation loss, since the required values for the further properties (which are known to be much easier to achieve than the required values for the basic properties) differ from those of the brake fluid of Example 5 would hardly distinguish.
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Description
- Die Erfindung betrifft eine hydraulische Flüssigkeit auf der Basis von bestimmten Borsäureestern und Bis(äthylenglykolmonoalkyläther)formalen.
- An hydraulische Flüssigkeiten, insbesondere an Bremsflüssigkeiten, werden hinsichtlich ihrer chemischen und physikalischen Eigenschaften hohe Anforderungen gestellt. Entsprechend den derzeit bestehenden Normen (vgl. Spezifikationen von US Department of Transportation in "Federal Motor Vehicle Safety Standard (FMVSS-Nr. 116)" und Spezifikationen SAE J 1703 von Society of Automotive Engineers, New York) sollen Bremsflüssigkeiten insbesondere die folgenden Grundeigenschaften aufweisen: Einen hohen Trocken-Siedepunkt (Rückflusssiedepunkt-trocken) und Nass-Siedepunkt (Rückflusssiedepunkt-feucht) sowie eine Viskosität, die sich innerhalb eines weiten Temperaturbereiches nur wenig ändert.
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- Neben diesen Primäreigenschaften soll eine Bremsflüssigkeit auch noch eine Reihe weiterer Eigenschaften besitzen.
- Unter diesen Eigenschaften sind neben einer hohen thermischen und chemischen Stabilität vor allem die Verträglichkeit der Bremsflüssigkeit gegenüber Polymeren, insbesondere gegenüber Kautschuk und Gummi, und ihrVerdampfungsverlust nach Durchführung des entsprechenden SAE-Tests wichtig.
- Es sind bereits hydraulische Flüssigkeiten, insbesondere Bremsflüssigkeiten auf der Basis von Borsäureestern von Glykolen und/oder Glykolmonoalkyläthem bekannt, die als weitere Hauptkomponenten Glykolmonoalkyläther, Glykoldialkyläther, Polyglykole und/oder Bis(glykoläther)formale enthalten (vgl. deutsche Patentschrift Nr. 939045, die deutschen Auslegeschriften Nrn. 1768933 und 2457097, die deutschen Offenlegungsschriften Nrn. 2141441, 2257546, 2437936, 2438038, 2525403, 2532228, 2724193 und 2804535). Bei der aus der US-A Nr.3711411 bekannten hydraulischen Flüssigkeit mit Bis(äthylenglykolmonoalkyläther)formalen als mögliche Mischungskomponente wird zur pH-Stabilisierung ausschliesslich Monoäthanolamin eingesetzt, wobei jedoch hinsichtlich Trocken- und Nasssiedepunkt relativ niedrige Werte in Kauf genommen werden.
- Die bekannten Bremsflüssigkeiten lassen also noch zu wünschen übrig. Der Grund dafür liegt vor allem darin, dass sich unter den Anforderungen, die eine Bremsflüssigkeit erfüllen soll, auch solche befinden, die sich aufgrund der chemischen und physikalischen Eigenschaften der Hauptkomponenten entgegenstehen. So ist es beispielsweise bekanntlich sehr schwierig, die Viskosität einer Bremsflüssigkeit auf der Basis von Borsäureestern nach der Norm DOT-4 einzustellen und gleichzeitig auch noch zu erreichen, dass der Siedepunkt und/oder ihre Verträglichkeit mit Kautschuk der Norm entspricht. Bei der Formulierung der bekannten Bremsflüssigkeiten auf der Basis von Borsäureestern wird also häufig ein Gewinn bei einer wichtigen Eigenschaft durch eine relativ hohe Einbusse bei einer anderen wichtigen Eigenschaft erkauft.
- Nun nimmt ferner in jüngster Zeit die Tendenz zu, höhere Anforderungen als bisher an das Leistungsvermögen von Bremsflüssigkeiten zu stellen, um eine noch grössere Verkehrssicherheit zu gewährleisten und auch um längere Gebrauchszeiten zu erzielen. Dies kommt in der verschärften Spezifikation DOT-5 zum Ausdruck (vgl. nachstehende Zusammenfassung):
- Gewünscht wäre also eine Bremsflüssigkeit, die insbesondere bei den eingangs genannten Grundeigenschaften, im Verhalten gegenüber Polymeren und beim oben erwähnten Verdampfungstest besonders ausgezeichnete Werte aufweist.
- Aufgabe der Erfindung ist es demnach, eine hydraulische Flüssigkeit, insbesondere eine Bremsflüssigkeit, zu schaffen, die nicht nur das Eigenschaftsbild gemäss den derzeit geforderten Standards voll erfüllt, sondern auch den oben erwähnten erweiterten Anforderungen entspricht.
- Die erfindungsgemässe hydraulische Flüssigkeit besteht im wesentlichen aus
- A) 20 bis 40 Gew.%, bezogen auf das Gewicht der gesamten Flüssigkeit, von einem Borsäureester, der erhalten wird, wenn man Orthoborsäure (H3B03), Diäthylenglykol (HOCH2CH20CH2CHZOH) und einen Äthylenglykolmonoalkyläther der Formel
- B) 30 bis 60 Gew.%, bezogen auf das Gewicht der gesamten Flüssigkeit, von mindestens einem Äthylenglykolmonoalkyläther der Formel I, worin R und x die genannte Bedeutung haben;
- C) 10 bis 40 Gew.%, bezogen auf das Gewicht der gesamten Flüssigkeit, von mindestens einem Bis(äthylenglykolmonoalkyläther)formal der Formel II
- D) 0,1 bis 5 Gew.%, bezogen auf das Gewicht der gesamten Flüssigkeit, von mindestens einem Alkylamin der Formel III
- R3 eine Alkyl- oder eine einfach ungesättigte Alkenylgruppe mit 1 bis 18 C-Atomen;
- R4 Wasserstoff,
- R5 Wasserstoff,
und - E) 0,05 bis 5 Gew.%, bezogen auf das Gewicht der gesamten Flüssigkeit; von mindestens einem Stabilisator und/oder Inhibitor.
- Die Herstellung der Borsäureester gemäss Komponente A- ein Reaktionsprodukt aus Orthoborsäure, Diäthylenglykol und einem Äthylenglykolmonoalkyläther der Formel I im Molverhältnis von 1:1:1 1― erfolgt nach an sich bekannten Arbeitsweisen. Die genannten Reaktionskomponenten werden in einem mit Rührer und gegebenenfalls mit Rückflusskühler ausgestatteten Reaktionsgefäss bei einer Temperatur von etwa 50 bis etwa 150 °C, vorzugsweise etwa 110 bis etwa 140 °C, unter Rühren umgesetzt, wobei das entstehende Reaktionswasser kontinuierlich abgeführt wird. Die Umsetzung kann in Anwesenheit eines inerten, mit Wasser ein Azeotrop bildenden Lösungsmittels wie beispielsweise Benzol, Toluol, Xylol, Äthylenbenzol oder dergleichen, durchgeführt werden. Das Entfernen des Reaktionswassers kann auch dadurch vorgenommen werden, dass man die Umsetzung unter vermindertem Druck, beispielsweise im Wasserstrahlvakuum (7 bis 20 mbar), durchführt. Nach Beendigung der Umsetzung (d.h. nachdem das theoretisch freiwerdende Wasser ausgetragen worden ist) wird das gegebenenfalls verwendete Lösungsmittel durch übliche Destillation vom Reaktionsprodukt entfernt und dieses - sofern noch eine weitere Reinigung erforderlich sein sollte - zweckmässigerweise bei einer Temperatur von 90 bis 150 °C vakuumgestrippt.
- Das so erhaltene Produkt stellt die Komponente Adererfindungsgemässen hydraulischen Flüssigkeit dar. Unter den Äthylenglykolmonoalkyläthern der Formel I, die zur Herstellung der Borsäureester eingesetzt werden, sind solche bevorzugt, worin R eine geradkettige Alkylgruppe mit 1 bis 4 C-Atomen, vorzugsweise CH3 oder C2H5 ist, und x 3 ist.
- Das Umsetzungsprodukt aus Orthoborsäure, Diäthylenglykol und einem Äthylenglykolmonoalkyläther der Formel im Molverhältnis 1: 1 : 1 : besteht vermutlich aus einer Mischung von formelmässig verschiedenartigen Borsäureestern in unterschiedlichen Mengenanteilen. Es kann angenommen werden, dass in dieser Mischung der Borsäureester der nachstehenden Formel den Hauptanteil darstellt:
- Als Komponente B der erfindungsgemässen hydraulischen Flüssigkeit sind solche Äthylenglykolmonoalkyläther gemäss Formel bevorzugt, worin R eine geradkettige Alkylgruppe mit 1 bis 4 C-Atomen, vorzugsweise CH3 oder C2H5 ist, und x 3 ist.
- Besonders bevorzugt ist Methyltriäthylenglykol
- Die Komponente D der erfindungsgemässen hydraulischen Flüssigkeit besteht aus den Alkylaminen der Formel 111. Für die Reste R3 und R6 (die geradkettig oder verzweigt sein können) seien beispielsweise genannt: Methyl, Äthyl, Propyl, lsopropyl, Butyl, Isobutyl, Pentyl, Hexyl, Octyl (Capryl), Nonyl, Isononyl, Dodecyl (Lauryl), Palmityl, Stearyl und Oleyl. Die Alkyl- und Alkenylgruppe (R3, R5) enthält vorzugsweise 1 bis 9 C-Atome. Die Summe der C-Atome von R3 und R6 ist vorzugsweise nicht höher als 10. Die Bedeutung von y in Formel III ist vorzugsweise eine ganze Zahl von 1 bis 3.
- Bevorzugt sind solche Alkylamine der Formel III worin R3 eine Alkylgruppe mit 1 bis 9 C-Atomen ist und R4 und R6 Wasserstoff oder ―(CH2CH2O)yH ist, wobei y eine ganze Zahl von 1 bis 5, vorzugsweise 1 bis 3 ist.
- Besonders bevorzugt als Komponente D sind solche Alkylamine der Formel III, worin R3 Propyl, Butyl, Hexyl, Octyl oder Isononyl ist, und R4 und R5 gleich sind und Wasserstoff oder CH2CH2OH bedeuten.
- Die Komponente E der erfindungsgemässen hydraulischen Flüssigkeit besteht aus üblichen Additiven für Flüssigkeiten auf der Basis von Borsäureestern und Glykolderivaten.
- Zu diesen Additiven gehören Stabilisatoren, beispielsweise pH-Wert-Stabilisatoren, und Inhibitoren, beispielsweise Inhibitoren von Korrosion und Oxidation (Antioxidantien).
- Unter den geeigneten pH-Wert-Stabilisatoren sind bevorzugt solche aus der Grupppe der anorganischen Alkalisalze, vorzugsweise die Natriumsalze der Kohlensäure, der phosphorigen Säure oder der Phosphorsäure; Alkalisalze von Fettsäuren, vorzugsweise das Natriumsalz der Laurinsäure, Palmitinsäure, Stearinsäure oder Ölsäure; Trialkanolamine, vorzugsweise Triethanolamin; und Trialkylamine (tert.-Amine), beispielsweise Dimethylcaprylamin und Diäthylcaprylamin.
- Die pH-Wert-Stabilisatoren werden vorzugsweise in einer Menge von 0,1 bis 4 Gew.%, bezogen auf das Gewicht der gesamten Flüssigkeit eingesetzt.
- Unter den geeigneten Korrosionsinhibitoren werden bevorzugt eingesetzt:
- Fettsäuren, vorzugsweise Caprylsäure, Laurinsäure, Palmitinsäure, Stearinsäure oder Ölsäure;
- Ester der phosphorigen Säure oder der Phosphorsäure mit aliphatischen Alkoholen mit 1 bis 6 C-Atomen, vorzugsweise Äthylphosphat, Dimethylphosphat, lsopropylphosphat, Diisopropylphosphat, Butylphosphit und Dimethylphosphit; und/oder Triazole, vorzugsweise Benztriazol.
- Die Korrosionsinhibitoren werden vorzugsweise in einer Menge von 0,05 bis 1 Gew.%, bezogen auf das Gewicht der gesamten Flüssigkeit, eingesetzt.
- Unter den geeigneten Antioxidantien sind die folgenden Verbindungen einzeln oder in Mischung miteinander bevorzugt:
- aromatische Amine, vorzugsweise Phenyl-a-naphthylamin, Diphenylamin und Derivate hiervon;
- substituierte Phenole, vorzugsweise Dibutylkresol, 2,6-Dibutyl-p-kresol, 2,6-Ditert.-butyl-p-kresol und 2,4 Dimethyl-6-tert.-butylphenol; Brenzkatechin und Hydrochinon, gegebenenfalls kernsubstituiert;
- Chinone, vorzugsweise Antrachinon; und Phenothiazine, die auch kernsubsituiert sein können.
- Die Antioxidantien werden vorzugsweise in einer Menge von 0,05 bis 1 Gew.%, bezogen auf das Gewicht der gesamten Flüssigkeit, eingesetzt.
-
- Die Herstellung der erfindungsgemässen hydraulischen Flüssigkeit erfolgt durch Zusammenmischen der Komponenten, beispielsweise in einem Behälter mit Rührorgan, wodurch in einfacher Weise ein homogenes Gemisch erhalten wird. In der Regal wird das Zusammenmischen bei Atmosphärendruck und bei Raumtemperatur vorgenommen, es kann gegebenenfalls auch bei höherer Temperatur (30 bis 50 °C) durchgeführt werden, wobei zweckmässigerweise Feuchtigkeit abgehalten wird.
- Die erfindungsgemässen hydraulischen Flüssigkeiten eignen sich vor allem für hydraulische Bremssysteme, vorzugsweise von Motorfahrzeugen, für hydraulische Steuersysteme und für hydraulische Transmissionen.
- Durch die nachstehenden Beispiele wird die Erfindung noch näher erläutert.
- Es werden die folgenden erfindungsgemäss zu verwendenden Borsäureester (A1 bis A4) durch Umsetzen von Orthoborsäure, Diäthylenglykol und einem Äthylenglykolmonoalkyläther der Formel I hergestellt. Die Umsetzung wird jeweils in der Weise durchgeführt, dass die drei Reaktionskomponenten im molaren Verhältnis von 1 : 1 : 1 in einem Reaktionsgefäss unter Rühren und im Wasserstrahlvakuum bei einer Temperatur von etwa 120 °C gehalten werden, bis die etwa theoretische Menge Wasser ausgetragen ist. Das so erhaltene Reaktionsprodukt stellt die Borsäureester A1 bis A4 dar:
- Borsäureester A1 ist ein Umsetzungsprodukt von Orthoborsäure, Diäthylenglykol und Tri- äthylenglykolmonomethyläther (Methyltriäthylenglykol);
- Borsäureester A2 ist ein Umsetzungsprodukt von Orthoborsäure, Diäthylenglykol und Di- äthylenglykolmonomethyläther;
- Borsäureester A3 ist ein Umsetzungsprodukt von Orthoborsäure, Diäthylenglykol und Tri- äthylenglykolmonoäthyläther;
- Borsäureester A4 ist ein Umsetzungsprodukt von Orthoborsäure, Diäthylenglykol und Di- äthylenglykolmonobutyläther.
-
-
-
-
-
-
- . Die erfindungsgemässen hydraulischen Flüssigkeiten der Beispiele 5 bis 10 sind entsprechend den Methoden von FMVSS Nr. 116 bzw. SAE geprüft worden. Die Ergebnisse sind in den nachstehenden Tabellen 1 und 2 zusammengefasst.
- Beispiel 5 (siehe Tabelle 1) ist vollständig nach den genannten Spezifikationen geprüft worden. Die Prüfung der Bremsflüssigkeiten gemäss den Beispielen 6 bis 10 erfolgte nur auf die Grundeigenschaften und auf Quellverhalten und Verdampfungsverlust, da die geforderten Werte für die weiteren Eigenschaften (die bekanntlich wesentlich leichter zu erreichen sind als die geforderten Werte für die Grundeigenschaften) sich von denen der Bremsflüssigkeit des Beispiels 5 kaum unterscheiden würden.
-
Claims (3)
und
Priority Applications (1)
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AT80106748T ATE4550T1 (de) | 1979-11-08 | 1980-11-03 | Hydraulische fluessigkeit mit verbesserten eigenschaften. |
Applications Claiming Priority (2)
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DE2945094 | 1979-11-08 | ||
DE19792945094 DE2945094A1 (de) | 1979-11-08 | 1979-11-08 | Hydraulische fluessigkeit mit verbesserten eigenschaften |
Publications (2)
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EP0028789A1 EP0028789A1 (de) | 1981-05-20 |
EP0028789B1 true EP0028789B1 (de) | 1983-08-31 |
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US (1) | US4371448A (de) |
EP (1) | EP0028789B1 (de) |
JP (1) | JPS5676498A (de) |
AT (1) | ATE4550T1 (de) |
BR (1) | BR8007194A (de) |
CA (1) | CA1168651A (de) |
DE (2) | DE2945094A1 (de) |
MX (1) | MX155641A (de) |
ZA (1) | ZA806880B (de) |
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JPS6416895A (en) * | 1987-07-13 | 1989-01-20 | Nippon Nyukazai Co Ltd | Brake fluid composition |
US4795583A (en) * | 1987-12-28 | 1989-01-03 | Ethyl Petroleum Additives, Inc. | Shift-feel durability enhancement |
DE4013243A1 (de) * | 1990-04-26 | 1991-10-31 | Hoechst Ag | Gegen metallkorrosion inhibierte bremsfluessigkeiten auf der basis von glykolverbindungen |
CA2068436A1 (en) * | 1991-05-14 | 1992-11-15 | Charles M. Olson | Stabilized brake fluids |
FR2735784B1 (fr) * | 1995-06-23 | 1997-08-22 | Bp Chemicals Snc | Composition de fluide hydraulique comportant un systeme inhibiteur de corrosion |
KR100600100B1 (ko) * | 1999-12-31 | 2006-07-13 | 현대자동차주식회사 | 자동차용 브레이크액 조성물 |
US6391225B1 (en) | 2000-02-25 | 2002-05-21 | Exxonmobil Research And Engineering Company | Phosphate ester hydraulic fluids with improved properties (law935) |
US6558569B1 (en) | 2000-11-10 | 2003-05-06 | Union Carbide Chemicals & Plastics Technology Corporation | Low viscosity functional fluids compositions |
DE10117647A1 (de) * | 2001-04-09 | 2002-10-17 | Basf Ag | Hydraulische Flüssigkeiten mit verbessertem Korrosionsschutz |
US20040234701A1 (en) * | 2003-02-19 | 2004-11-25 | Caton Gregory James | Lower alkyl carboxylic acid moieties as organoleptic stabilizers and preservatives of food and beverages and for preventing oxidative corrosion of metals |
BRPI0613845A2 (pt) | 2005-07-01 | 2011-02-15 | Dow Global Technologies Inc | composição de fluìdo funcional e sistema de frenagem para veìculos |
JP2010540728A (ja) * | 2007-09-28 | 2010-12-24 | ダウ グローバル テクノロジーズ インコーポレイティド | 機能性流体組成物 |
US20090099048A1 (en) * | 2007-10-15 | 2009-04-16 | Dow Global Technologies Inc. | Functional fluid composition for improving lubricity of a braking system |
BRPI0916028A2 (pt) * | 2008-11-07 | 2015-11-10 | Dow Global Technologies Inc | composição de fluido |
JP2015516495A (ja) * | 2012-05-15 | 2015-06-11 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | 新規の低粘度機能性液体組成物 |
WO2015052234A1 (en) * | 2013-10-10 | 2015-04-16 | Basf Se | Novel functional fluid composition |
HRP20230836T1 (hr) | 2020-04-23 | 2023-11-10 | Clariant International Ltd | Kompozicija funkcionalnog fluida niske viskoznosti |
EP3929269A1 (de) | 2020-06-22 | 2021-12-29 | Clariant International Ltd | Funktionale fluidzusammensetzung mit niedriger viskosität |
EP4056669A1 (de) | 2021-03-12 | 2022-09-14 | Clariant International Ltd | Niedrigviskose funktionsflüssigkeitszusammensetzung |
EP4130211A1 (de) | 2021-08-02 | 2023-02-08 | Clariant International Ltd | Funktionale fluidzusammensetzung mit niedriger viskosität |
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US3637794A (en) * | 1967-04-13 | 1972-01-25 | Olin Mathieson | Borate esters prepared by successive reactions of boric acid with glycol monoethers and polyols |
US3779930A (en) * | 1970-06-16 | 1973-12-18 | Ici Australia Ltd | Fluids |
DE2257546A1 (de) * | 1971-11-29 | 1973-06-07 | Dow Chemical Co | Hydraulik-fluessigkeit |
JPS5046584A (de) * | 1973-08-11 | 1975-04-25 | ||
US4088590A (en) * | 1973-10-09 | 1978-05-09 | Hoechst Aktiengesellschaft | Hydraulic fluid containing tertiary butyl ethers |
JPS5213596B2 (de) * | 1973-12-03 | 1977-04-15 | ||
GB1518669A (en) * | 1974-06-07 | 1978-07-19 | Ici Ltd | Hydraulic fluid compositions |
US3925223A (en) * | 1974-07-19 | 1975-12-09 | Union Carbide Corp | Hydraulic fluids based on borate esters |
DE2437936C2 (de) * | 1974-08-07 | 1983-02-10 | Basf Ag, 6700 Ludwigshafen | Cyclische Ortho-Borsäureester und deren Verwendung als Bestandteil von Bremsflüssigkeiten |
JPS52145675A (en) * | 1976-05-28 | 1977-12-03 | Sanyo Chemical Ind Ltd | Brake liquid having high boiling point |
JPS5930759B2 (ja) * | 1977-05-31 | 1984-07-28 | 三洋化成工業株式会社 | 新規なブレ−キ液組成物 |
DE2901835A1 (de) * | 1979-01-18 | 1980-07-31 | Hoechst Ag | Hydraulische fluessigkeiten |
-
1979
- 1979-11-08 DE DE19792945094 patent/DE2945094A1/de not_active Withdrawn
-
1980
- 1980-11-03 AT AT80106748T patent/ATE4550T1/de not_active IP Right Cessation
- 1980-11-03 EP EP80106748A patent/EP0028789B1/de not_active Expired
- 1980-11-03 DE DE8080106748T patent/DE3064713D1/de not_active Expired
- 1980-11-05 US US06/204,326 patent/US4371448A/en not_active Expired - Lifetime
- 1980-11-06 BR BR8007194A patent/BR8007194A/pt unknown
- 1980-11-07 ZA ZA00806880A patent/ZA806880B/xx unknown
- 1980-11-07 MX MX184675A patent/MX155641A/es unknown
- 1980-11-07 CA CA000364226A patent/CA1168651A/en not_active Expired
- 1980-11-07 JP JP15602780A patent/JPS5676498A/ja active Pending
Also Published As
Publication number | Publication date |
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MX155641A (es) | 1988-04-08 |
US4371448A (en) | 1983-02-01 |
DE3064713D1 (en) | 1983-10-06 |
ATE4550T1 (de) | 1983-09-15 |
CA1168651A (en) | 1984-06-05 |
EP0028789A1 (de) | 1981-05-20 |
DE2945094A1 (de) | 1981-05-21 |
ZA806880B (en) | 1981-11-25 |
JPS5676498A (en) | 1981-06-24 |
BR8007194A (pt) | 1981-05-12 |
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