NO325635B1 - Brake Fluid for Motor Vehicles - Google Patents
Brake Fluid for Motor Vehicles Download PDFInfo
- Publication number
- NO325635B1 NO325635B1 NO20034495A NO20034495A NO325635B1 NO 325635 B1 NO325635 B1 NO 325635B1 NO 20034495 A NO20034495 A NO 20034495A NO 20034495 A NO20034495 A NO 20034495A NO 325635 B1 NO325635 B1 NO 325635B1
- Authority
- NO
- Norway
- Prior art keywords
- weight
- brake fluid
- motor vehicles
- triazole
- tolutriazole
- Prior art date
Links
- 239000012530 fluid Substances 0.000 title claims description 44
- 230000007797 corrosion Effects 0.000 claims description 31
- 238000005260 corrosion Methods 0.000 claims description 31
- 239000003112 inhibitor Substances 0.000 claims description 16
- NSPMIYGKQJPBQR-UHFFFAOYSA-N 4H-1,2,4-triazole Chemical compound C=1N=CNN=1 NSPMIYGKQJPBQR-UHFFFAOYSA-N 0.000 claims description 15
- 229920000151 polyglycol Polymers 0.000 claims description 13
- 239000010695 polyglycol Substances 0.000 claims description 13
- 150000002170 ethers Chemical class 0.000 claims description 7
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 5
- KDCGOANMDULRCW-UHFFFAOYSA-N 7H-purine Chemical compound N1=CNC2=NC=NC2=C1 KDCGOANMDULRCW-UHFFFAOYSA-N 0.000 claims description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical class OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 4
- QWENRTYMTSOGBR-UHFFFAOYSA-N 1H-1,2,3-Triazole Chemical class C=1C=NNN=1 QWENRTYMTSOGBR-UHFFFAOYSA-N 0.000 claims description 3
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 claims description 3
- GFFGJBXGBJISGV-UHFFFAOYSA-N Adenine Chemical compound NC1=NC=NC2=C1N=CN2 GFFGJBXGBJISGV-UHFFFAOYSA-N 0.000 claims description 3
- 229930024421 Adenine Natural products 0.000 claims description 3
- 229960000643 adenine Drugs 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 150000003852 triazoles Chemical class 0.000 claims description 3
- RMFWVOLULURGJI-UHFFFAOYSA-N 2,6-dichloro-7h-purine Chemical compound ClC1=NC(Cl)=C2NC=NC2=N1 RMFWVOLULURGJI-UHFFFAOYSA-N 0.000 claims description 2
- ZKBQDFAWXLTYKS-UHFFFAOYSA-N 6-Chloro-1H-purine Chemical compound ClC1=NC=NC2=C1NC=N2 ZKBQDFAWXLTYKS-UHFFFAOYSA-N 0.000 claims description 2
- GOILPRCCOREWQE-UHFFFAOYSA-N 6-methoxy-7h-purine Chemical compound COC1=NC=NC2=C1NC=N2 GOILPRCCOREWQE-UHFFFAOYSA-N 0.000 claims description 2
- FAIXYKHYOGVFKA-UHFFFAOYSA-N Kinetin Natural products N=1C=NC=2N=CNC=2C=1N(C)C1=CC=CO1 FAIXYKHYOGVFKA-UHFFFAOYSA-N 0.000 claims description 2
- QANMHLXAZMSUEX-UHFFFAOYSA-N kinetin Chemical compound N=1C=NC=2N=CNC=2C=1NCC1=CC=CO1 QANMHLXAZMSUEX-UHFFFAOYSA-N 0.000 claims description 2
- 229960001669 kinetin Drugs 0.000 claims description 2
- VQNDBXJTIJKJPV-UHFFFAOYSA-N 2h-triazolo[4,5-b]pyridine Chemical compound C1=CC=NC2=NNN=C21 VQNDBXJTIJKJPV-UHFFFAOYSA-N 0.000 claims 1
- -1 ferrous metals Chemical class 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- 239000010949 copper Substances 0.000 description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- 229910052802 copper Inorganic materials 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 8
- 102100024737 Deoxynucleotidyltransferase terminal-interacting protein 2 Human genes 0.000 description 6
- 101000626071 Homo sapiens Deoxynucleotidyltransferase terminal-interacting protein 2 Proteins 0.000 description 6
- 238000009835 boiling Methods 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- DSILSMIQUPKHSH-UHFFFAOYSA-N 2-[2-(2-methoxyethoxy)ethoxy]ethoxyboronic acid Chemical compound COCCOCCOCCOB(O)O DSILSMIQUPKHSH-UHFFFAOYSA-N 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 4
- SBASXUCJHJRPEV-UHFFFAOYSA-N 2-(2-methoxyethoxy)ethanol Chemical compound COCCOCCO SBASXUCJHJRPEV-UHFFFAOYSA-N 0.000 description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 description 3
- UAOMVDZJSHZZME-UHFFFAOYSA-N diisopropylamine Chemical compound CC(C)NC(C)C UAOMVDZJSHZZME-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- JLGLQAWTXXGVEM-UHFFFAOYSA-N triethylene glycol monomethyl ether Chemical compound COCCOCCOCCO JLGLQAWTXXGVEM-UHFFFAOYSA-N 0.000 description 3
- COBPKKZHLDDMTB-UHFFFAOYSA-N 2-[2-(2-butoxyethoxy)ethoxy]ethanol Chemical compound CCCCOCCOCCOCCO COBPKKZHLDDMTB-UHFFFAOYSA-N 0.000 description 2
- RJMRCNBBTPROCR-UHFFFAOYSA-N 2-methyl-2-[2-[2-[(2-methylpropan-2-yl)oxy]ethoxy]ethoxy]propane Chemical compound CC(C)(C)OCCOCCOC(C)(C)C RJMRCNBBTPROCR-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N Caprylic acid Natural products CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 150000001642 boronic acid derivatives Chemical class 0.000 description 2
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 description 2
- JQVDAXLFBXTEQA-UHFFFAOYSA-N dibutylamine Chemical compound CCCCNCCCC JQVDAXLFBXTEQA-UHFFFAOYSA-N 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- TUEYHEWXYWCDHA-UHFFFAOYSA-N ethyl 5-methylthiadiazole-4-carboxylate Chemical compound CCOC(=O)C=1N=NSC=1C TUEYHEWXYWCDHA-UHFFFAOYSA-N 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
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N methyl undecanoic acid Natural products CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N n-hexadecanoic acid Natural products CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ZUHZGEOKBKGPSW-UHFFFAOYSA-N tetraglyme Chemical compound COCCOCCOCCOCCOC ZUHZGEOKBKGPSW-UHFFFAOYSA-N 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 239000011135 tin Substances 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 description 1
- BMVXCPBXGZKUPN-UHFFFAOYSA-N 1-hexanamine Chemical compound CCCCCCN BMVXCPBXGZKUPN-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
- CRWNQZTZTZWPOF-UHFFFAOYSA-N 2-methyl-4-phenylpyridine Chemical compound C1=NC(C)=CC(C=2C=CC=CC=2)=C1 CRWNQZTZTZWPOF-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- ZETIVVHRRQLWFW-UHFFFAOYSA-N 3-nitrobenzaldehyde Chemical compound [O-][N+](=O)C1=CC=CC(C=O)=C1 ZETIVVHRRQLWFW-UHFFFAOYSA-N 0.000 description 1
- VATRWWPJWVCZTA-UHFFFAOYSA-N 3-oxo-n-[2-(trifluoromethyl)phenyl]butanamide Chemical compound CC(=O)CC(=O)NC1=CC=CC=C1C(F)(F)F VATRWWPJWVCZTA-UHFFFAOYSA-N 0.000 description 1
- LRUDIIUSNGCQKF-UHFFFAOYSA-N 5-methyl-1H-benzotriazole Chemical class C1=C(C)C=CC2=NNN=C21 LRUDIIUSNGCQKF-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- KKUKTXOBAWVSHC-UHFFFAOYSA-N Dimethylphosphate Chemical compound COP(O)(=O)OC KKUKTXOBAWVSHC-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004411 aluminium Substances 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
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- OOSPDKSZPPFOBR-UHFFFAOYSA-N butyl dihydrogen phosphite Chemical compound CCCCOP(O)O OOSPDKSZPPFOBR-UHFFFAOYSA-N 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 125000005265 dialkylamine group Chemical group 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
- 229940043279 diisopropylamine Drugs 0.000 description 1
- CZHYKKAKFWLGJO-UHFFFAOYSA-N dimethyl phosphite Chemical compound COP([O-])OC CZHYKKAKFWLGJO-UHFFFAOYSA-N 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- WEHWNAOGRSTTBQ-UHFFFAOYSA-N dipropylamine Chemical compound CCCNCCC WEHWNAOGRSTTBQ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- ZJXZSIYSNXKHEA-UHFFFAOYSA-N ethyl dihydrogen phosphate Chemical compound CCOP(O)(O)=O ZJXZSIYSNXKHEA-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- LHGVFZTZFXWLCP-UHFFFAOYSA-N guaiacol Chemical compound COC1=CC=CC=C1O LHGVFZTZFXWLCP-UHFFFAOYSA-N 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- QPPQHRDVPBTVEV-UHFFFAOYSA-N isopropyl dihydrogen phosphate Chemical compound CC(C)OP(O)(O)=O QPPQHRDVPBTVEV-UHFFFAOYSA-N 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 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
- IOQPZZOEVPZRBK-UHFFFAOYSA-N octan-1-amine Chemical compound CCCCCCCCN IOQPZZOEVPZRBK-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 235000021313 oleic acid Nutrition 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
- 229940083251 peripheral vasodilators purine derivative Drugs 0.000 description 1
- 229950000688 phenothiazine Drugs 0.000 description 1
- 150000003007 phosphonic acid derivatives Chemical class 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 150000003212 purines Chemical class 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- YFNKIDBQEZZDLK-UHFFFAOYSA-N triglyme Chemical compound COCCOCCOCCOC YFNKIDBQEZZDLK-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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
- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/38—Heterocyclic nitrogen compounds
- C10M133/44—Five-membered ring containing nitrogen and carbon only
-
- 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
- C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
- C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
-
- 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
- C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
- C10M137/12—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having a phosphorus-to-carbon bond
-
- 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
- C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
-
- 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
-
- 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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- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Braking Arrangements (AREA)
Description
Foreliggende oppfinnelse omhandler bremsevæsker for motorkjøretøyer, som har forbedret korrosjonsbeskyttelse. The present invention relates to brake fluids for motor vehicles, which have improved corrosion protection.
Bremsevæsker for motorkjøretøyer utsettes for svært høye krav med hensyn til deres kjemiske og fysiske egenskaper. I samsvar med de eksisterende standarder og spesifikasjoner for bremsevæsker fra the US Department of Transportation i Federal Motor Vehicle Safety Standard FMVSS-Nr. 116 og SAE J 1704 standarden publisert av the Society of Automotive Engineers, skulle moderne bremsevæsker på den ene siden ha høye tørre kokepunkter (likevekts reflukskokepunkter "ERBP") og høye våte kokepunkter ("våte ERBP"), men skulle på den andre siden også ha en viskositet som bare endres svakt innen et bredt temperaturområde. Brake fluids for motor vehicles are subjected to very high demands with regard to their chemical and physical properties. In accordance with the existing standards and specifications for brake fluids from the US Department of Transportation in the Federal Motor Vehicle Safety Standard FMVSS-Nr. 116 and the SAE J 1704 standard published by the Society of Automotive Engineers, modern brake fluids should on the one hand have high dry boiling points (equilibrium reflux boiling points "ERBP") and high wet boiling points ("wet ERBP"), but should on the other hand also have a viscosity that changes only slightly within a wide temperature range.
I tillegg, er det mer krevende krav fra bilindustrien til forbedret korrosjonsbeskyttelse i tilfelle metaller og jernfrie metaller. Korrosjonsinhibitorer i bremsevæsker har oppgaven med å forhindre ødeleggelse av metalliske materialer forårsaket av korrosjon. In addition, there are more demanding requirements from the automotive industry for improved corrosion protection in the case of metals and non-ferrous metals. Corrosion inhibitors in brake fluids have the task of preventing the destruction of metallic materials caused by corrosion.
Anvendelsen av 1H-1,2,3-triazoler, slik som 1H-1,2,3-benzotriazol eller 1H-1,2,3-tolutriazol, som korrosjonsinhibitorer i hydrauliske væsker eller bremsevæsker har lenge vært kjent, for eksempel fra EP-A 028 789 (1) og EP-A454 110(2). The use of 1H-1,2,3-triazoles, such as 1H-1,2,3-benzotriazole or 1H-1,2,3-tolutriazole, as corrosion inhibitors in hydraulic fluids or brake fluids has long been known, for example from EP -A 028 789 (1) and EP-A 454 110 (2).
WO 00/46325 (3) anbefaler hydrauliske væsker som omfatter en kombinasjon av 1 H-1,2,3-benzotriazol eller derivater derav, slik som 1 H-1,2,3-tolutriazol, og 1 H-1,2,4-triazol eller derivater derav i et vektforhold på fra 1:4 til 4:1 som korrosjonsinhibitorsystem. For sammenlignende formål, indikerer Tabeller 1 til 4 i (3) også hydrauliske væsker som omfatter 1 H-1,2,4-triazol alene i konsen-trasjoner på 0,15 vekt-%; imidlertid, er dens korrosjonsinhiberende virkning akseptabel kun i tilfellet med kobber. WO 00/46325 (3) recommends hydraulic fluids comprising a combination of 1 H-1,2,3-benzotriazole or derivatives thereof, such as 1 H-1,2,3-tolutriazole, and 1 H-1,2, 4-triazole or derivatives thereof in a weight ratio of from 1:4 to 4:1 as a corrosion inhibitor system. For comparative purposes, Tables 1 to 4 in (3) also indicate hydraulic fluids comprising 1H-1,2,4-triazole alone in concentrations of 0.15% by weight; however, its corrosion inhibiting action is acceptable only in the case of copper.
Bremsevæsker for motorkjøretøyer som er kjent fra tidligere teknikk er, imidlertid, fremdeles utilfredsstillende med hensyn til deres egenskaper og spesielt deres korrosjonsbeskyttelse. Det var derfor et formål med foreliggende oppfinnelse å tilveiebringe bremsevæsker som, spesielt, tilfredsstiller oven-nevnte krav til forbedret korrosjonsbeskyttelse i tilfellet metaller og jernfrie metaller. Brake fluids for motor vehicles known from the prior art are, however, still unsatisfactory with regard to their properties and especially their corrosion protection. It was therefore an object of the present invention to provide brake fluids which, in particular, satisfy the above-mentioned requirements for improved corrosion protection in the case of metals and non-ferrous metals.
Den foreliggende oppfinnelsen tilveiebringer følgelig en bremsevæske for motorkjøretøyer som har forbedret korrosjonsbeskyttelse, som omfatter (a) fra 0,005 til 0,125 vekt-% 1 H-1,2,4-triazol, og (b) fra 0 til 10 vekt-% av én eller flere ytterligere korrosjonsinhibitorer, hvor, ved samtidig anvendelse av 1 H-1,2,3-benzotriazol og/eller 1 H-1,2,3-tolutriazol og/eller derivater derav, vektforholdet mellom 1 H-1,2,4-triazol og nevnte 1H-1,2,3-triazoler må være større enn 4:1, og videre fra 0,1 til 97 vekt-% av én eller flere polyglykoletere og/eller borsyreestere derav. Motorkjøretøybremsevæskene ifølge oppfinnelsen omfatter foretrukket fra 0,005 til 0,10 vekt-%, foretrukket fra 0,005 til 0,08 vekt-%, spesielt fra 0,005 til 0,06 vekt-%, av komponent (a). Accordingly, the present invention provides a motor vehicle brake fluid having improved corrosion protection comprising (a) from 0.005 to 0.125% by weight of 1H-1,2,4-triazole, and (b) from 0 to 10% by weight of one or several additional corrosion inhibitors, where, with the simultaneous use of 1 H-1,2,3-benzotriazole and/or 1 H-1,2,3-tolutriazole and/or derivatives thereof, the weight ratio between 1 H-1,2,4 -triazole and said 1H-1,2,3-triazoles must be greater than 4:1, and further from 0.1 to 97% by weight of one or more polyglycol ethers and/or boric acid esters thereof. The motor vehicle brake fluids according to the invention preferably comprise from 0.005 to 0.10% by weight, preferably from 0.005 to 0.08% by weight, especially from 0.005 to 0.06% by weight, of component (a).
I en foretrukket utførelse, omfatter motorkjøretøybremsevæskene ifølge oppfinnelsen komponent (a) som den eneste triazol-baserte korrosjonsinhibitor. Dette er tenkt å bety at triazoler, slik som 1H-1,2,3-benzotriazol, 1H-1,2,3-tolutriazol eller hydrogenert 1 H-1,2,3-tolutriazol, er utelukket her, men uorganiske og/eller organiske korrosjonsinhibitorer som har en forskjellig struktur kan likevel være til stede. In a preferred embodiment, the motor vehicle brake fluids according to the invention comprise component (a) as the only triazole-based corrosion inhibitor. This is intended to mean that triazoles, such as 1H-1,2,3-benzotriazole, 1H-1,2,3-tolutriazole or hydrogenated 1H-1,2,3-tolutriazole, are excluded here, but inorganic and/ or organic corrosion inhibitors that have a different structure may still be present.
Passende ytterligere korrosjonsinhibitorer (b) her er, spesielt, alkalimetallsalter av fosforsyre og fosforholdig syre, fettsyrer, slik som kapryl-, laurin-, palmitin-, stearin- eller oleinsyre og alkalimetallsalter derav, estere av fosforsyre og fosforholdig syre, slik som etylfosfat, dimetylfosfat, isopropylfosfat, diisopropyl-fosfat, butylfosfitt eller dimetylfosfitt, eventuelt etoksylerte mono- og dialkyl-aminer og salter derav med mineralsyrer og fettsyrer, for eksempel butylamin, heksylamin, oktylamin, isononylamin, oleylamin, dipropylamin, diisopropylamin eller dibutylamin, eventuelt etoksylerte alkanolaminer, for eksempel mono-, di-eller trietanolamin, N,N'-di-n-butylaminoetanol eller 1,1'-iminodipropan-2-ol, cykloheksylamin, benzimidazol og hydrogenert tolutriazol, og nitroaromatisk forbindelser, for eksempel 3-nitrobenzaldehyd. Suitable further corrosion inhibitors (b) here are, in particular, alkali metal salts of phosphoric acid and phosphoric acid, fatty acids, such as caprylic, lauric, palmitic, stearic or oleic acid and alkali metal salts thereof, esters of phosphoric acid and phosphoric acid, such as ethyl phosphate, dimethyl phosphate, isopropyl phosphate, diisopropyl phosphate, butyl phosphite or dimethyl phosphite, optionally ethoxylated mono- and dialkyl amines and their salts with mineral acids and fatty acids, for example butylamine, hexylamine, octylamine, isonylamine, oleylamine, dipropylamine, diisopropylamine or dibutylamine, optionally ethoxylated alkanolamines, for example mono-, di- or triethanolamine, N,N'-di-n-butylaminoethanol or 1,1'-iminodipropan-2-ol, cyclohexylamine, benzimidazole and hydrogenated tolutriazole, and nitroaromatic compounds, for example 3-nitrobenzaldehyde.
Nevnte korrosjonsinhibitorer (b) er foretrukket til stede i motorkjøretøy-bremsevæskene ifølge oppfinnelsen i mengder fra 0,001 til 10 vekt-%, spesielt fra 0,001 til 5 vekt-%. Said corrosion inhibitors (b) are preferably present in the motor vehicle brake fluids according to the invention in amounts from 0.001 to 10% by weight, especially from 0.001 to 5% by weight.
I en spesielt foretrukket utførelse, omfatter motorkjøretøybremsevæskene ifølge oppfinnelsen, ut over 1 H-1,2,4-triazol (a), som ytterligere korrosjonsinhibitorer (b) fra 0,001 til 0,5 vekt-%, av én eller flere forbindelser fra gruppen som består av benzimidazol, hydrogenert 1 H-1,2,3-tolutriazol, purin, adenin, 6-klorpurin, 2,6-diklorpurin, 6-metoksypurin, 1 H-1,2,3-triazolo(4,5-d)pyridin, 6-histaminopurin og 6-furfurylaminopurin og, eventuelt, ytterligere korrosjonsinhibitorer andre enn (a). Nevnte purinderivater er beskrevet i Tysk patentsøknad P 100 26 010.1 som jernfrie metallkorrosjonsinhibitorer for hydrauliske væsker eller bremsevæsker. In a particularly preferred embodiment, the motor vehicle brake fluids according to the invention comprise, in addition to 1 H-1,2,4-triazole (a), as additional corrosion inhibitors (b) from 0.001 to 0.5% by weight, of one or more compounds from the group consisting of benzimidazole, hydrogenated 1 H-1,2,3-tolutriazole, purine, adenine, 6-chloropurine, 2,6-dichloropurine, 6-methoxypurine, 1 H-1,2,3-triazolo(4,5- d) pyridine, 6-histaminopurine and 6-furfurylaminopurine and, optionally, additional corrosion inhibitors other than (a). Said purine derivatives are described in German patent application P 100 26 010.1 as iron-free metal corrosion inhibitors for hydraulic fluids or brake fluids.
Alle vektprosent data gitt over og under relateres i hvert tilfelle til totalmengden av bremsevæsken, så fremt ikke annet er angitt. Summen av alle komponenter listet over og under for bremsevæskene ifølge oppfinnelsen summeres i hvert tilfelle opp til 100 vekt-%. All weight percentage data given above and below relate in each case to the total amount of brake fluid, unless otherwise stated. The sum of all components listed above and below for the brake fluids according to the invention is added up to 100% by weight in each case.
Foreliggende oppfinnelse omhandler bremsevæsker for motorkjøretøyer som omfatter, som korrosjonsinhibitorer, nevnte komponenter (a) og, hvis ønsket, (b). The present invention relates to brake fluids for motor vehicles which comprise, as corrosion inhibitors, said components (a) and, if desired, (b).
I en foretrukket utførelse, omfatter motorkjøretøybremsevæskene ifølge oppfinnelsen videre, i tillegg til komponentene (a) og, eventuelt, (b), fra 0,1 til 97 vekt-%, spesielt fra 30 til 97 vekt-%, fremfor alt fra 50 til 97 vekt-%, av én eller flere polyglykoletere og/eller borater derav. In a preferred embodiment, the motor vehicle brake fluids according to the invention further comprise, in addition to components (a) and, optionally, (b), from 0.1 to 97% by weight, in particular from 30 to 97% by weight, above all from 50 to 97% by weight, of one or more polyglycol ethers and/or borates thereof.
Passende polyglykoletere her er, spesielt, etylenglykol monoalkyletere som har opp til 6 etylenoksidenheter og som har opp til 4 karbonatomer i alkylradikalen, for eksempel dietylenglykol monometyleter, trietylenglykol monometyleter, trietylenglykol monobutyleter eller tetraetylenglykol monometyleter. Passende er også etylenglykol dialkyletere og propylenglykol dialkyletere som har opp til 6 alkylenoksidenheter og som har opp til 4 karbonatomer i hver av alkyl-radikalene, for eksempel trietylenglykol dimetyleter, tetraetylenglykol dimetyleter, dietylenglykol di-tert-butyleter, dietylenglykol dibutyleter, dietylenglykol di-tert-butyleter eller dipropylenglykol dimetyleter. Suitable polyglycol ethers here are, in particular, ethylene glycol monoalkyl ethers which have up to 6 ethylene oxide units and which have up to 4 carbon atoms in the alkyl radical, for example diethylene glycol monomethyl ether, triethylene glycol monomethyl ether, triethylene glycol monobutyl ether or tetraethylene glycol monomethyl ether. Also suitable are ethylene glycol dialkyl ethers and propylene glycol dialkyl ethers which have up to 6 alkylene oxide units and which have up to 4 carbon atoms in each of the alkyl radicals, for example triethylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, diethylene glycol di-tert-butyl ether, diethylene glycol dibutyl ether, diethylene glycol di-tert -butyl ether or dipropylene glycol dimethyl ether.
Passende borsyreestere av nevnte eller andre polyglykoletere er beskrevet, spesielt, i patentskriftene EP-B 013 925 (cykliske bisborsyreestere), DE-C 28 04 535 (nitrogen-holdige borsyreestere), DE-A 24 38 038 (borsyre alkylenglykol monoalkyleter estere) og DE-B 17 68 933 (borsyre trisalkoksyalkyl estere). Suitable boronic acid esters of the aforementioned or other polyglycol ethers are described, in particular, in the patent documents EP-B 013 925 (cyclic bisboric acid esters), DE-C 28 04 535 (nitrogen-containing boronic acid esters), DE-A 24 38 038 (boric acid alkylene glycol monoalkyl ether esters) and DE-B 17 68 933 (boric acid trisalkoxyalkyl esters).
I stedet for nevnte polyglykoletere og/eller borsyreestere derav, kan motor-kjøretøybremsevæskene ifølge oppfinnelsen også omfatte, som hoved-komponent, slike basert på karboksylsyreestere, mineral oljer eller silikonoljer. Instead of said polyglycol ethers and/or boric acid esters thereof, the motor vehicle brake fluids according to the invention can also comprise, as main component, those based on carboxylic acid esters, mineral oils or silicone oils.
I en ytterligere foretrukket utførelse, omfatter motorkjøretøybremsevæskene ifølge oppfinnelsen videre, ut over komponenter (a) og, hvis ønsket, (b), fra 0,1 til 50 vekt-%, spesielt fra 1 til 40 vekt-%, spesielt fra 5 til 30 vekt-%, av én eller flere polyglykoler. In a further preferred embodiment, the motor vehicle brake fluids according to the invention further comprise, in addition to components (a) and, if desired, (b), from 0.1 to 50% by weight, in particular from 1 to 40% by weight, in particular from 5 to 30% by weight of one or more polyglycols.
Passende polyglykoler her er, spesielt, relativt høytkokende produkter av reaksjonen av etylenoksid og/eller propylenoksid og/eller butylenoksid med vann eller dioler, spesielt tilsvarende produkter av blandinger av etylenoksid og propylenoksid med vann. Antallet alkylenoksidenheter i polyglykoler av denne typen er vanligvis fra 2 til 10. Suitable polyglycols here are, in particular, relatively high-boiling products of the reaction of ethylene oxide and/or propylene oxide and/or butylene oxide with water or diols, especially corresponding products of mixtures of ethylene oxide and propylene oxide with water. The number of alkylene oxide units in polyglycols of this type is usually from 2 to 10.
Virkningen av disse høytkokende polyglykoler er den til et smøremiddel, som grunnleggende kan tilskrives en forbedring i temperatur/viskositets opptreden. Polyglykolene gir polyglykoleterne med lav viskositet tilstrekkelig viskositet ved høye temperaturer og sikrer derfor tilstrekkelig smøring. Tilstrekkelig smøring er nødvendig i komponentene i motorkjøretøyets bremsesystem siden gummi eller elastomerer må skli på metall med svært lav slitasje i disse systemene. Nærværet av nevnte lille mengde 1 H-1,2,4-triazol sikrer på en utmerket måte, at motorkjøretøybremsevæskene ifølge oppfinnelsen møter kravet nevnt i innledningen og at, spesielt, en korrosjonsopptreden som generelt er god sammenlignet med tidligere teknikk, dvs. forbedret korrosjonsbeskyttelse i tilfelle metaller, slik som jern, stål, blikk, støpejern (grått jern), bly, tinn, krom, sink, aluminium, magnesium og legeringer derav, og i tilfelle loddemetaller, for eksempel loddetinn, og i tilfelle jernfrie metaller, slik som kobber og legeringer derav, for eksempel messing, bevirkes. Ytterligere fordeler med motorkjøretøybremsevæskene ifølge oppfinnelsen er deres gunstige lav-temperatur viskositet, god vann kompatibilitet, en mild pH, god lav-temperatur, høy-temperatur og oksidasjonsstabilitet og god kjemisk stabilitet, en gunstig opptreden (dvs. god kompatibilitet) med materialer slik som gummier, plaster, limfuger, fiber-, elastomer- og gummiforseglinger og lignende materialer, så vel som god smørende opptreden. The effect of these high-boiling polyglycols is that of a lubricant, which is basically attributable to an improvement in temperature/viscosity behavior. The polyglycols give the polyglycol ethers with low viscosity sufficient viscosity at high temperatures and therefore ensure sufficient lubrication. Adequate lubrication is required in the components of the motor vehicle braking system since rubber or elastomers must slide on metal with very low wear in these systems. The presence of said small amount of 1 H-1,2,4-triazole ensures in an excellent way that the motor vehicle brake fluids according to the invention meet the requirement mentioned in the introduction and that, in particular, a corrosion behavior which is generally good compared to the prior art, i.e. improved corrosion protection in the case of metals, such as iron, steel, tin, cast iron (gray iron), lead, tin, chromium, zinc, aluminium, magnesium and their alloys, and in the case of solders, such as solder, and in the case of non-ferrous metals, such as copper and its alloys, for example brass, are wrought. Further advantages of the motor vehicle brake fluids according to the invention are their favorable low-temperature viscosity, good water compatibility, a mild pH, good low-temperature, high-temperature and oxidation stability and good chemical stability, a favorable behavior (ie good compatibility) with materials such as rubbers, plasters, adhesive joints, fiber, elastomer and rubber seals and similar materials, as well as good lubricating behavior.
Ikke minst, er anvendelsen av kun en liten mengde 1 H-1,2,4-triazol i motor-kjøretøybremsevæskene ifølge oppfinnelsen fordelaktig både økonomisk og økologisk. Not least, the use of only a small amount of 1H-1,2,4-triazole in the motor vehicle brake fluids according to the invention is advantageous both economically and ecologically.
Anvendelseseksempler Application examples
Basert på de kommersielt tilgjengelige DOT 4 eller DOT 5,1 bremsevæsker BF 1 (ERBP: 267°C, våt ERBP: 173°C, kinematisk viskositet ved -40°C: 676 cSt) og BF 2 (ERBP: 263°C, våt ERBP: 181°C, kinematisk viskositet ved -40°C: 850 cSt) hver med 0,05 vekt-% 1 H-1,2,3-tolutriazol som jernfri metall korrosjonsinhibitor, ble bremsevæskene BF 1a, BF 1b, BF 1c og BF 2a ifølge oppfinnelsen testet i sammenligning til disse. Based on the commercially available DOT 4 or DOT 5.1 brake fluids BF 1 (ERBP: 267°C, wet ERBP: 173°C, kinematic viscosity at -40°C: 676 cSt) and BF 2 (ERBP: 263°C, wet ERBP: 181°C, kinematic viscosity at -40°C: 850 cSt) each with 0.05 wt% 1 H-1,2,3-tolutriazole as non-ferrous metal corrosion inhibitor, the brake fluids BF 1a, BF 1b, BF 1c and BF 2a according to the invention tested in comparison to these.
De anvendte motorkjøretøybremsevæsker hadde de følgende sammen-setninger: The motor vehicle brake fluids used had the following compositions:
BF 1: BF 1:
55,00 vekt-% trietylenglykol metyleter borat, 55.00% by weight triethylene glycol methyl ether borate,
43,44 vekt-% av en blanding av trietylenglykol monometyleter, tetraetylenglykol monometyleter, trietylenglykol monobutyleter og dietylenglykol monometyleter, 1,51 vekt-% av en blanding av 1,1 '-iminodipropan-2-ol, fenotiazin og en fosforsyre ester 43.44% by weight of a mixture of triethylene glycol monomethyl ether, tetraethylene glycol monomethyl ether, triethylene glycol monobutyl ether and diethylene glycol monomethyl ether, 1.51% by weight of a mixture of 1,1'-iminodipropan-2-ol, phenothiazine and a phosphoric acid ester
0,05 vekt-% 1 H-1,2,3-tolutriazol 0.05% by weight 1H-1,2,3-tolutriazole
BF 2: BF 2:
68,00 vekt-% trietylenglykol metyleter borat, 68.00% by weight triethylene glycol methyl ether borate,
28,84 vekt-% av en blanding av trietylenglykol monometyleter, dietylenglykol monometyleter, dietylenglykol monobutyleter og dietylenglykol, 28.84% by weight of a mixture of triethylene glycol monomethyl ether, diethylene glycol monomethyl ether, diethylene glycol monobutyl ether and diethylene glycol,
3,11 vekt-% av en blanding av 1,1 '-iminodipropan-2-ol, hydroksyanisol og et fosfonsyrederivat 3.11% by weight of a mixture of 1,1'-iminodipropan-2-ol, hydroxyanisole and a phosphonic acid derivative
0,05 vekt-% 1 H-1,2,3-tolutriazol. 0.05% by weight 1H-1,2,3-tolutriazole.
Bremsevæsker BF 1a og BF 2a ifølge oppfinnelsen avviker fra BF 1 og BF 2 kun i det at de 0,05 vekt-% 1 H-1,2,3-tolutriazol har blitt erstattet med den samme mengde 1 H-1,2,4-triazol; bremsevæske BF 1b omfatter 0,04 vekt-% 1 H-1,2,4-triazol og 0,01 vekt-% adenin i stedet for 0,05 vekt-% 1 H-1,2,3-tolutriazol; bremsevæske BF 1c ifølge oppfinnelsen omfatter 0,07 vekt-% 1 H-1,2,4-triazol (men kun 54,98 vekt-% trietylenglykol monometyleter borat) i stedet for 0,05 vekt-% 1 H-1,2,3-tolutriazol. Brake fluids BF 1a and BF 2a according to the invention differ from BF 1 and BF 2 only in that the 0.05% by weight of 1H-1,2,3-tolutriazole has been replaced with the same amount of 1H-1,2, 4-triazole; brake fluid BF 1b comprises 0.04% by weight 1H-1,2,4-triazole and 0.01% by weight adenine instead of 0.05% by weight 1H-1,2,3-tolutriazole; brake fluid BF 1c according to the invention comprises 0.07% by weight 1H-1,2,4-triazole (but only 54.98% by weight triethylene glycol monomethyl ether borate) instead of 0.05% by weight 1H-1,2 ,3-tolutriazole.
Anvendelsesstudiene ble utført i samsvar med PSA Peugeot-Citroén D 53 5387 kobber-korrosjonstesten i 2000 versjonen. I denne testen, blir først en kobberplate som tidligere er renset i aceton, med et totalt overflateareal på 1000 cm<2> (dimensjoner: 71,4 cm x 7 cm x 0,05 cm) kveilet opp i form av en rund sylinder på en slik måte at metalloverflaten på innsiden ikke er i kontakt med seg selv. Kobberplaten plasseres i en blanding av 294 ml bremsevæske som inneholder 6 ml destillert vann og varmes opp ved 100°C i 100 timer; 10 liter per time med luft, som tidligere hadde blitt ført gjennom destillert vann kjølt til 2°C føres gjennom væsken. Etter testen, blir utseendet til en utrullede kobberplaten og utseendet til væsken visuelt bedømt, og kobberinnholdet i væsken bestem-mes. The application studies were carried out in accordance with the PSA Peugeot-Citroén D 53 5387 copper corrosion test in the 2000 version. In this test, first a copper plate previously cleaned in acetone, with a total surface area of 1000 cm<2> (dimensions: 71.4 cm x 7 cm x 0.05 cm) is coiled up in the form of a round cylinder on such a way that the metal surface on the inside is not in contact with itself. The copper plate is placed in a mixture of 294 ml of brake fluid containing 6 ml of distilled water and heated at 100°C for 100 hours; 10 liters per hour of air, which had previously been passed through distilled water cooled to 2°C, is passed through the liquid. After the test, the appearance of an unrolled copper sheet and the appearance of the liquid are visually judged, and the copper content of the liquid is determined.
Resultatene fra testen beskrevet er vist i Tabell 1 under. The results from the test described are shown in Table 1 below.
Det kan sees at formuleringene ifølge oppfinnelsen, i motsetning til kon-vensjonelle bremsevæsker, slik som BF 1 og BF 2, ikke bare gir svært god kobber korrosjonsbeskyttelse med et lavt Cu innhold i testvæsken, men i tillegg også gir en beleggfri metalloverflate og ingen sedimentdannelse i bremsevæsken. It can be seen that the formulations according to the invention, in contrast to conventional brake fluids, such as BF 1 and BF 2, not only provide very good copper corrosion protection with a low Cu content in the test fluid, but also provide a coating-free metal surface and no sediment formation in the brake fluid.
Resultatene vist under for korrosjonstesten i samsvar med SAE J 1704 (Jan. 97) bekrefter også at bremsevæsker ifølge oppfinnelsen, slik som BF 2a, som har et lavt 1 H-1,2,4-triazol innhold gir fordeler i forhold til formuleringer som ikke er i samsvar med oppfinnelsen, slik som BF 1 d, som har et høyt 1 H-1,2,4-triazolinnhold, siden de utviser et bedre korrosjonsresultat i tilfelle kobber (BF 1 d tilsvarte BF 1, men omfattet 0,20 vekt-% 1 H-1,2,4-triazol i stedet for 1H-1,2,3-tolutriazol og omfattet kun 54,85 vekt-% trietylenglykol monometyleter borat): Resultatene fra korrosjonstesten i samsvar med SAE J 1704 (Jan. 97) er vist i Tabell 2 under. The results shown below for the corrosion test in accordance with SAE J 1704 (Jan. 97) also confirm that brake fluids according to the invention, such as BF 2a, which have a low 1 H-1,2,4-triazole content offer advantages over formulations which are not in accordance with the invention, such as BF 1 d, which has a high 1 H-1,2,4-triazole content, since they show a better corrosion result in the case of copper (BF 1 d corresponded to BF 1, but comprised 0.20 wt% 1H-1,2,4-triazole instead of 1H-1,2,3-tolutriazole and comprised only 54.85 wt% triethylene glycol monomethyl ether borate): The results of the corrosion test in accordance with SAE J 1704 (Jan .97) is shown in Table 2 below.
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE10117647A DE10117647A1 (en) | 2001-04-09 | 2001-04-09 | Hydraulic fluids with improved corrosion protection |
PCT/EP2002/003671 WO2002081604A1 (en) | 2001-04-09 | 2002-04-03 | Hydraulic fluids with improved anti-corrosion properties |
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NO20034495L NO20034495L (en) | 2003-10-08 |
NO20034495D0 NO20034495D0 (en) | 2003-10-08 |
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NO20034495A NO325635B1 (en) | 2001-04-09 | 2003-10-08 | Brake Fluid for Motor Vehicles |
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US (1) | US20040116306A1 (en) |
EP (1) | EP1379615B1 (en) |
JP (1) | JP4116445B2 (en) |
KR (1) | KR100861969B1 (en) |
CN (1) | CN1312261C (en) |
AR (1) | AR033453A1 (en) |
AT (1) | ATE286112T1 (en) |
AU (1) | AU2002308121B2 (en) |
BR (1) | BR0208415A (en) |
CA (1) | CA2442697C (en) |
CZ (1) | CZ299651B6 (en) |
DE (2) | DE10117647A1 (en) |
ES (1) | ES2235077T3 (en) |
HU (1) | HUP0303757A2 (en) |
MX (1) | MXPA03007944A (en) |
NO (1) | NO325635B1 (en) |
PL (1) | PL197796B1 (en) |
PT (1) | PT1379615E (en) |
SK (1) | SK286828B6 (en) |
WO (1) | WO2002081604A1 (en) |
ZA (1) | ZA200308690B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009507938A (en) * | 2005-07-01 | 2009-02-26 | ダウ グローバル テクノロジーズ インコーポレイティド | Low viscosity functional fluid |
US20070093395A1 (en) * | 2005-10-21 | 2007-04-26 | Habeeb Jacob J | Antiwear inhibiting and load enhancing additive combinations for lubricating oils |
US7535673B2 (en) * | 2006-01-23 | 2009-05-19 | Hitachi Global Storage Technologies Netherlands B.V. | Fluid dynamic bearing comprising a lubricating fluid having tolutriazole |
WO2008142795A1 (en) | 2007-05-24 | 2008-11-27 | Chiyoda Chemical Co., Ltd. | Functional fluid |
US10669503B2 (en) | 2014-02-25 | 2020-06-02 | Jon A. Petty | Corrosion inhibiting hydraulic fluid additive |
US9593289B2 (en) * | 2014-02-25 | 2017-03-14 | Jon A. Petty | Corrosion inhibiting hydraulic fluid additive |
CN107557121A (en) * | 2017-08-15 | 2018-01-09 | 杭州天汇精细化工有限公司 | A kind of motor vehicle brake fluid and its production method |
CN111676082A (en) * | 2020-05-11 | 2020-09-18 | 江苏龙蟠科技股份有限公司 | Brake fluid for ESP (electronic stability program) automobile control system and preparation method thereof |
US12018224B2 (en) | 2021-07-28 | 2024-06-25 | Afton Chemical Corporation | Hydraulic fluid |
US11788026B2 (en) | 2021-07-28 | 2023-10-17 | Afton Chemical Corporation | Hydraulic fluid |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2945094A1 (en) * | 1979-11-08 | 1981-05-21 | Hoechst Ag, 6000 Frankfurt | HYDRAULIC LIQUID WITH IMPROVED PROPERTIES |
DE4013243A1 (en) * | 1990-04-26 | 1991-10-31 | Hoechst Ag | AGAINST METAL CORROSION INHIBITED BRAKE FLUIDS BASED ON GLYCOL COMPOUNDS |
GB2272000B (en) * | 1992-10-30 | 1997-03-26 | Castrol Ltd | A method of inhibiting corrosion |
ATE178953T1 (en) * | 1994-12-23 | 1999-04-15 | Cookson Group Plc | METHOD FOR CORROSION INHIBITION OF COPPER AND COPPER ALLOYS |
FR2733509B1 (en) * | 1995-04-28 | 1997-07-04 | Bp Chemicals Snc | ANTIFREEZE COMPOSITION AND AQUEOUS FLUID COMPRISING THE COMPOSITION |
US6074992A (en) * | 1999-02-02 | 2000-06-13 | Union Carbide Chemicals & Plastics Technology Corporation | Functional fluid compositions |
GB9924358D0 (en) * | 1999-10-14 | 1999-12-15 | Brad Chem Technology Ltd | Corrosion inhibiting compositions |
DE10026010A1 (en) * | 2000-05-25 | 2001-11-29 | Basf Ag | Hydraulic liquid, useful as a brake fluid and having improved corrosion protection for bright metals, contains 0.005-0.5 wt.% of at least one heterocyclic compound |
-
2001
- 2001-04-09 DE DE10117647A patent/DE10117647A1/en not_active Withdrawn
-
2002
- 2002-04-03 ES ES02759789T patent/ES2235077T3/en not_active Expired - Lifetime
- 2002-04-03 PT PT02759789T patent/PT1379615E/en unknown
- 2002-04-03 DE DE50201902T patent/DE50201902D1/en not_active Expired - Lifetime
- 2002-04-03 PL PL367159A patent/PL197796B1/en not_active IP Right Cessation
- 2002-04-03 CA CA2442697A patent/CA2442697C/en not_active Expired - Fee Related
- 2002-04-03 SK SK1192-2003A patent/SK286828B6/en not_active IP Right Cessation
- 2002-04-03 WO PCT/EP2002/003671 patent/WO2002081604A1/en active IP Right Grant
- 2002-04-03 AT AT02759789T patent/ATE286112T1/en active
- 2002-04-03 JP JP2002579971A patent/JP4116445B2/en not_active Expired - Fee Related
- 2002-04-03 MX MXPA03007944A patent/MXPA03007944A/en active IP Right Grant
- 2002-04-03 US US10/469,770 patent/US20040116306A1/en not_active Abandoned
- 2002-04-03 HU HU0303757A patent/HUP0303757A2/en unknown
- 2002-04-03 CN CNB028079027A patent/CN1312261C/en not_active Expired - Fee Related
- 2002-04-03 CZ CZ20032736A patent/CZ299651B6/en not_active IP Right Cessation
- 2002-04-03 AU AU2002308121A patent/AU2002308121B2/en not_active Ceased
- 2002-04-03 KR KR1020037013131A patent/KR100861969B1/en not_active IP Right Cessation
- 2002-04-03 EP EP02759789A patent/EP1379615B1/en not_active Expired - Lifetime
- 2002-04-03 AR ARP020101223A patent/AR033453A1/en active IP Right Grant
- 2002-04-03 BR BR0208415-5A patent/BR0208415A/en active Search and Examination
-
2003
- 2003-10-08 NO NO20034495A patent/NO325635B1/en not_active IP Right Cessation
- 2003-11-07 ZA ZA200308690A patent/ZA200308690B/en unknown
Also Published As
Publication number | Publication date |
---|---|
KR100861969B1 (en) | 2008-10-08 |
AR033453A1 (en) | 2003-12-17 |
EP1379615A1 (en) | 2004-01-14 |
PL367159A1 (en) | 2005-02-21 |
WO2002081604A1 (en) | 2002-10-17 |
NO20034495L (en) | 2003-10-08 |
PL197796B1 (en) | 2008-04-30 |
PT1379615E (en) | 2005-04-29 |
JP4116445B2 (en) | 2008-07-09 |
DE10117647A1 (en) | 2002-10-17 |
CA2442697A1 (en) | 2002-10-17 |
AU2002308121B2 (en) | 2007-08-09 |
CA2442697C (en) | 2011-03-15 |
EP1379615B1 (en) | 2004-12-29 |
KR20030087063A (en) | 2003-11-12 |
ES2235077T3 (en) | 2005-07-01 |
ATE286112T1 (en) | 2005-01-15 |
NO20034495D0 (en) | 2003-10-08 |
SK11922003A3 (en) | 2004-02-03 |
CN1312261C (en) | 2007-04-25 |
SK286828B6 (en) | 2009-06-05 |
CZ299651B6 (en) | 2008-10-01 |
JP2004523641A (en) | 2004-08-05 |
HUP0303757A2 (en) | 2004-03-01 |
MXPA03007944A (en) | 2004-04-02 |
US20040116306A1 (en) | 2004-06-17 |
BR0208415A (en) | 2004-03-30 |
CN1501971A (en) | 2004-06-02 |
CZ20032736A3 (en) | 2003-12-17 |
ZA200308690B (en) | 2004-11-08 |
DE50201902D1 (en) | 2005-02-03 |
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