US20240060001A1 - Aqueous composition for lubricating mechanical systems - Google Patents
Aqueous composition for lubricating mechanical systems Download PDFInfo
- Publication number
- US20240060001A1 US20240060001A1 US18/012,394 US202118012394A US2024060001A1 US 20240060001 A1 US20240060001 A1 US 20240060001A1 US 202118012394 A US202118012394 A US 202118012394A US 2024060001 A1 US2024060001 A1 US 2024060001A1
- Authority
- US
- United States
- Prior art keywords
- mass
- water
- lubricant composition
- aqueous lubricant
- aqueous
- 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.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 180
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 17
- 239000000314 lubricant Substances 0.000 claims abstract description 128
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 120
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- BTXNYTINYBABQR-UHFFFAOYSA-N hypericin Chemical compound C12=C(O)C=C(O)C(C(C=3C(O)=CC(C)=C4C=33)=O)=C2C3=C2C3=C4C(C)=CC(O)=C3C(=O)C3=C(O)C=C(O)C1=C32 BTXNYTINYBABQR-UHFFFAOYSA-N 0.000 claims abstract description 45
- PHOKTTKFQUYZPI-UHFFFAOYSA-N hypericin Natural products Cc1cc(O)c2c3C(=O)C(=Cc4c(O)c5c(O)cc(O)c6c7C(=O)C(=Cc8c(C)c1c2c(c78)c(c34)c56)O)O PHOKTTKFQUYZPI-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229940005608 hypericin Drugs 0.000 claims abstract description 44
- SSKVDVBQSWQEGJ-UHFFFAOYSA-N pseudohypericin Natural products C12=C(O)C=C(O)C(C(C=3C(O)=CC(O)=C4C=33)=O)=C2C3=C2C3=C4C(C)=CC(O)=C3C(=O)C3=C(O)C=C(O)C1=C32 SSKVDVBQSWQEGJ-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000000654 additive Substances 0.000 claims description 30
- -1 pH regulators Substances 0.000 claims description 25
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 22
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- 238000005260 corrosion Methods 0.000 claims description 16
- 230000007797 corrosion Effects 0.000 claims description 16
- 239000008367 deionised water Substances 0.000 claims description 14
- 229910021641 deionized water Inorganic materials 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 13
- 239000000975 dye Substances 0.000 claims description 13
- 239000003112 inhibitor Substances 0.000 claims description 13
- 230000000996 additive effect Effects 0.000 claims description 11
- 239000002518 antifoaming agent Substances 0.000 claims description 11
- 239000003995 emulsifying agent Substances 0.000 claims description 10
- 239000003352 sequestering agent Substances 0.000 claims description 9
- 239000003139 biocide Substances 0.000 claims description 8
- 239000003921 oil Substances 0.000 claims description 8
- 239000005069 Extreme pressure additive Substances 0.000 claims description 7
- 239000007866 anti-wear additive Substances 0.000 claims description 7
- 239000002270 dispersing agent Substances 0.000 claims description 2
- 229920001515 polyalkylene glycol Polymers 0.000 description 22
- 150000001875 compounds Chemical class 0.000 description 16
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 239000012530 fluid Substances 0.000 description 10
- 150000002334 glycols Chemical class 0.000 description 9
- 238000005461 lubrication Methods 0.000 description 9
- 125000003367 polycyclic group Chemical group 0.000 description 9
- LLEMOWNGBBNAJR-UHFFFAOYSA-N biphenyl-2-ol Chemical compound OC1=CC=CC=C1C1=CC=CC=C1 LLEMOWNGBBNAJR-UHFFFAOYSA-N 0.000 description 8
- 229920005862 polyol Polymers 0.000 description 8
- 239000002253 acid Substances 0.000 description 7
- 125000004432 carbon atom Chemical group C* 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000004215 Carbon black (E152) Substances 0.000 description 5
- 235000017309 Hypericum perforatum Nutrition 0.000 description 5
- 229910052581 Si3N4 Inorganic materials 0.000 description 5
- 239000012809 cooling fluid Substances 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- XEGAKAFEBOXGPV-UHFFFAOYSA-N 2,3,3a,4-tetrahydro-1h-benzotriazole Chemical compound C1C=CC=C2NNNC12 XEGAKAFEBOXGPV-UHFFFAOYSA-N 0.000 description 4
- CFKMVGJGLGKFKI-UHFFFAOYSA-N 4-chloro-m-cresol Chemical compound CC1=CC(O)=CC=C1Cl CFKMVGJGLGKFKI-UHFFFAOYSA-N 0.000 description 4
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 4
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 4
- 239000012964 benzotriazole Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000417 fungicide Substances 0.000 description 4
- 239000004306 orthophenyl phenol Substances 0.000 description 4
- 235000010292 orthophenyl phenol Nutrition 0.000 description 4
- 229940099451 3-iodo-2-propynylbutylcarbamate Drugs 0.000 description 3
- WYVVKGNFXHOCQV-UHFFFAOYSA-N 3-iodoprop-2-yn-1-yl butylcarbamate Chemical compound CCCCNC(=O)OCC#CI WYVVKGNFXHOCQV-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 241000546188 Hypericum Species 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 230000003254 anti-foaming effect Effects 0.000 description 3
- 239000002199 base oil Substances 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- KANAPVJGZDNSCZ-UHFFFAOYSA-N 1,2-benzothiazole 1-oxide Chemical class C1=CC=C2S(=O)N=CC2=C1 KANAPVJGZDNSCZ-UHFFFAOYSA-N 0.000 description 2
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 description 2
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 2
- GIAFURWZWWWBQT-UHFFFAOYSA-N 2-(2-aminoethoxy)ethanol Chemical compound NCCOCCO GIAFURWZWWWBQT-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 2
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 2
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
- 244000141009 Hypericum perforatum Species 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- AUNGANRZJHBGPY-SCRDCRAPSA-N Riboflavin Chemical compound OC[C@@H](O)[C@@H](O)[C@@H](O)CN1C=2C=C(C)C(C)=CC=2N=C2C1=NC(=O)NC2=O AUNGANRZJHBGPY-SCRDCRAPSA-N 0.000 description 2
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 description 2
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 150000001414 amino alcohols Chemical class 0.000 description 2
- 230000003115 biocidal effect Effects 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 229960002242 chlorocresol Drugs 0.000 description 2
- DHNRXBZYEKSXIM-UHFFFAOYSA-N chloromethylisothiazolinone Chemical compound CN1SC(Cl)=CC1=O DHNRXBZYEKSXIM-UHFFFAOYSA-N 0.000 description 2
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 2
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 description 2
- 229940043276 diisopropanolamine Drugs 0.000 description 2
- TVIDDXQYHWJXFK-UHFFFAOYSA-N dodecanedioic acid Chemical compound OC(=O)CCCCCCCCCCC(O)=O TVIDDXQYHWJXFK-UHFFFAOYSA-N 0.000 description 2
- DUYCTCQXNHFCSJ-UHFFFAOYSA-N dtpmp Chemical compound OP(=O)(O)CN(CP(O)(O)=O)CCN(CP(O)(=O)O)CCN(CP(O)(O)=O)CP(O)(O)=O DUYCTCQXNHFCSJ-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229960004585 etidronic acid Drugs 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- OVBPIULPVIDEAO-LBPRGKRZSA-N folic acid Chemical compound C=1N=C2NC(N)=NC(=O)C2=NC=1CNC1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 OVBPIULPVIDEAO-LBPRGKRZSA-N 0.000 description 2
- 235000019152 folic acid Nutrition 0.000 description 2
- 239000011724 folic acid Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000008397 galvanized steel Substances 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 238000005555 metalworking Methods 0.000 description 2
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 150000003077 polyols Chemical class 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- LWBHHRRTOZQPDM-UHFFFAOYSA-N undecanedioic acid Chemical compound OC(=O)CCCCCCCCCC(O)=O LWBHHRRTOZQPDM-UHFFFAOYSA-N 0.000 description 2
- CTMLKIKAUFEMLE-FTNGGYTGSA-N (2s)-4-[(e)-2-[(2s)-2-carboxy-6-hydroxy-5-[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2,3-dihydroindol-1-yl]ethenyl]-2,3-dihydropyridine-2,6-dicarboxylic acid Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC(C(=C1)O)=CC2=C1N(\C=C\C=1C[C@H](N=C(C=1)C(O)=O)C(O)=O)[C@H](C(O)=O)C2 CTMLKIKAUFEMLE-FTNGGYTGSA-N 0.000 description 1
- 150000000178 1,2,4-triazoles Chemical class 0.000 description 1
- VUWCWMOCWKCZTA-UHFFFAOYSA-N 1,2-thiazol-4-one Chemical class O=C1CSN=C1 VUWCWMOCWKCZTA-UHFFFAOYSA-N 0.000 description 1
- BIGYLAKFCGVRAN-UHFFFAOYSA-N 1,3,4-thiadiazolidine-2,5-dithione Chemical compound S=C1NNC(=S)S1 BIGYLAKFCGVRAN-UHFFFAOYSA-N 0.000 description 1
- LRYZVOQZDMSPCB-UHFFFAOYSA-N 2,5-bis(2,4,4-trimethylpentan-2-yldisulfanyl)-1,3,4-thiadiazole Chemical compound CC(C)(C)CC(C)(C)SSC1=NN=C(SSC(C)(C)CC(C)(C)C)S1 LRYZVOQZDMSPCB-UHFFFAOYSA-N 0.000 description 1
- BXRRILFCEKZKPU-UHFFFAOYSA-N 2,5-bis(2-methyloctan-2-yldisulfanyl)-1,3,4-thiadiazole Chemical compound CCCCCCC(C)(C)SSC1=NN=C(SSC(C)(C)CCCCCC)S1 BXRRILFCEKZKPU-UHFFFAOYSA-N 0.000 description 1
- XFAHFFMTBQKDHA-UHFFFAOYSA-N 2,5-bis(2-methylundecan-2-yldisulfanyl)-1,3,4-thiadiazole Chemical compound CCCCCCCCCC(C)(C)SSC1=NN=C(SSC(C)(C)CCCCCCCCC)S1 XFAHFFMTBQKDHA-UHFFFAOYSA-N 0.000 description 1
- IOAOAKDONABGPZ-UHFFFAOYSA-N 2-amino-2-ethylpropane-1,3-diol Chemical compound CCC(N)(CO)CO IOAOAKDONABGPZ-UHFFFAOYSA-N 0.000 description 1
- 229940058020 2-amino-2-methyl-1-propanol Drugs 0.000 description 1
- LUYIHWDYPAZCNN-UHFFFAOYSA-N 2-butyl-1,2-benzothiazol-3-one Chemical compound C1=CC=C2C(=O)N(CCCC)SC2=C1 LUYIHWDYPAZCNN-UHFFFAOYSA-N 0.000 description 1
- AVBBHCMDRGQBNW-UHFFFAOYSA-N 2-ethyl-n-(2-ethylhexyl)-n-(1,2,4-triazol-1-ylmethyl)hexan-1-amine Chemical compound CCCCC(CC)CN(CC(CC)CCCC)CN1C=NC=N1 AVBBHCMDRGQBNW-UHFFFAOYSA-N 0.000 description 1
- DHTAIMJOUCYGOL-UHFFFAOYSA-N 2-ethyl-n-(2-ethylhexyl)-n-[(4-methylbenzotriazol-1-yl)methyl]hexan-1-amine Chemical compound C1=CC=C2N(CN(CC(CC)CCCC)CC(CC)CCCC)N=NC2=C1C DHTAIMJOUCYGOL-UHFFFAOYSA-N 0.000 description 1
- 229940100555 2-methyl-4-isothiazolin-3-one Drugs 0.000 description 1
- MIDXCONKKJTLDX-UHFFFAOYSA-N 3,5-dimethylcyclopentane-1,2-dione Chemical compound CC1CC(C)C(=O)C1=O MIDXCONKKJTLDX-UHFFFAOYSA-N 0.000 description 1
- DLICJXPMMTZITN-UHFFFAOYSA-N 3-methyl-1,2-thiazol-4-one Chemical class CC1=NSCC1=O DLICJXPMMTZITN-UHFFFAOYSA-N 0.000 description 1
- SLXKOJJOQWFEFD-UHFFFAOYSA-N 6-aminohexanoic acid Chemical compound NCCCCCC(O)=O SLXKOJJOQWFEFD-UHFFFAOYSA-N 0.000 description 1
- YDOIFHVUBCIUHF-UHFFFAOYSA-N 9,11,13,16,18,20-hexahydroxy-5,24-dimethyloctacyclo[13.11.1.12,10.03,8.04,25.019,27.021,26.014,28]octacosa-1(26),2,4(25),5,8,10,12,14(28),15(27),16,18,20,23-tridecaene-7,22-dione Chemical compound OC1=CC(O)=C2C(O)=C3C(=O)C=C(C)C4=C5C(C)=CC(=O)C6=C(O)C7=C(O)C=C(O)C8=C7C(=C56)C(=C34)C2=C18 YDOIFHVUBCIUHF-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 235000021537 Beetroot Nutrition 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- AUNGANRZJHBGPY-UHFFFAOYSA-N D-Lyxoflavin Natural products OCC(O)C(O)C(O)CN1C=2C=C(C)C(C)=CC=2N=C2C1=NC(=O)NC2=O AUNGANRZJHBGPY-UHFFFAOYSA-N 0.000 description 1
- 244000000626 Daucus carota Species 0.000 description 1
- 235000002767 Daucus carota Nutrition 0.000 description 1
- 208000020401 Depressive disease Diseases 0.000 description 1
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical class [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 235000005206 Hibiscus Nutrition 0.000 description 1
- 235000007185 Hibiscus lunariifolius Nutrition 0.000 description 1
- 244000284380 Hibiscus rosa sinensis Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229920001202 Inulin Polymers 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 229920000305 Nylon 6,10 Polymers 0.000 description 1
- XNKLGNLAIBORDD-UHFFFAOYSA-N P(O)(OC(C)(O)OP(O)=O)=O Chemical compound P(O)(OC(C)(O)OP(O)=O)=O XNKLGNLAIBORDD-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229920000805 Polyaspartic acid Polymers 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 229910006069 SO3H Inorganic materials 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- BTHAQRDGBHUQMR-UHFFFAOYSA-N [S]P(=O)=O Chemical compound [S]P(=O)=O BTHAQRDGBHUQMR-UHFFFAOYSA-N 0.000 description 1
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical class CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 229910000318 alkali metal phosphate Inorganic materials 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Natural products CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 229960002684 aminocaproic acid Drugs 0.000 description 1
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000000259 anti-tumor effect Effects 0.000 description 1
- 230000000840 anti-viral effect Effects 0.000 description 1
- 239000013011 aqueous formulation Substances 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 150000001556 benzimidazoles Chemical class 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 235000012745 brilliant blue FCF Nutrition 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 235000013736 caramel Nutrition 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 235000012730 carminic acid Nutrition 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- OIQPTROHQCGFEF-UHFFFAOYSA-L chembl1371409 Chemical compound [Na+].[Na+].OC1=CC=C2C=C(S([O-])(=O)=O)C=CC2=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 OIQPTROHQCGFEF-UHFFFAOYSA-L 0.000 description 1
- ONTQJDKFANPPKK-UHFFFAOYSA-L chembl3185981 Chemical compound [Na+].[Na+].CC1=CC(C)=C(S([O-])(=O)=O)C=C1N=NC1=CC(S([O-])(=O)=O)=C(C=CC=C2)C2=C1O ONTQJDKFANPPKK-UHFFFAOYSA-L 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 125000002704 decyl 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])* 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- VPWFPZBFBFHIIL-UHFFFAOYSA-L disodium 4-[(4-methyl-2-sulfophenyl)diazenyl]-3-oxidonaphthalene-2-carboxylate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)C1=CC(C)=CC=C1N=NC1=C(O)C(C([O-])=O)=CC2=CC=CC=C12 VPWFPZBFBFHIIL-UHFFFAOYSA-L 0.000 description 1
- NJDNXYGOVLYJHP-UHFFFAOYSA-L disodium;2-(3-oxido-6-oxoxanthen-9-yl)benzoate Chemical compound [Na+].[Na+].[O-]C(=O)C1=CC=CC=C1C1=C2C=CC(=O)C=C2OC2=CC([O-])=CC=C21 NJDNXYGOVLYJHP-UHFFFAOYSA-L 0.000 description 1
- 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 1
- 239000003814 drug Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 150000002169 ethanolamines Chemical class 0.000 description 1
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 150000002193 fatty amides Chemical class 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- JYJIGFIDKWBXDU-MNNPPOADSA-N inulin Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)OC[C@]1(OC[C@]2(OC[C@]3(OC[C@]4(OC[C@]5(OC[C@]6(OC[C@]7(OC[C@]8(OC[C@]9(OC[C@]%10(OC[C@]%11(OC[C@]%12(OC[C@]%13(OC[C@]%14(OC[C@]%15(OC[C@]%16(OC[C@]%17(OC[C@]%18(OC[C@]%19(OC[C@]%20(OC[C@]%21(OC[C@]%22(OC[C@]%23(OC[C@]%24(OC[C@]%25(OC[C@]%26(OC[C@]%27(OC[C@]%28(OC[C@]%29(OC[C@]%30(OC[C@]%31(OC[C@]%32(OC[C@]%33(OC[C@]%34(OC[C@]%35(OC[C@]%36(O[C@@H]%37[C@@H]([C@@H](O)[C@H](O)[C@@H](CO)O%37)O)[C@H]([C@H](O)[C@@H](CO)O%36)O)[C@H]([C@H](O)[C@@H](CO)O%35)O)[C@H]([C@H](O)[C@@H](CO)O%34)O)[C@H]([C@H](O)[C@@H](CO)O%33)O)[C@H]([C@H](O)[C@@H](CO)O%32)O)[C@H]([C@H](O)[C@@H](CO)O%31)O)[C@H]([C@H](O)[C@@H](CO)O%30)O)[C@H]([C@H](O)[C@@H](CO)O%29)O)[C@H]([C@H](O)[C@@H](CO)O%28)O)[C@H]([C@H](O)[C@@H](CO)O%27)O)[C@H]([C@H](O)[C@@H](CO)O%26)O)[C@H]([C@H](O)[C@@H](CO)O%25)O)[C@H]([C@H](O)[C@@H](CO)O%24)O)[C@H]([C@H](O)[C@@H](CO)O%23)O)[C@H]([C@H](O)[C@@H](CO)O%22)O)[C@H]([C@H](O)[C@@H](CO)O%21)O)[C@H]([C@H](O)[C@@H](CO)O%20)O)[C@H]([C@H](O)[C@@H](CO)O%19)O)[C@H]([C@H](O)[C@@H](CO)O%18)O)[C@H]([C@H](O)[C@@H](CO)O%17)O)[C@H]([C@H](O)[C@@H](CO)O%16)O)[C@H]([C@H](O)[C@@H](CO)O%15)O)[C@H]([C@H](O)[C@@H](CO)O%14)O)[C@H]([C@H](O)[C@@H](CO)O%13)O)[C@H]([C@H](O)[C@@H](CO)O%12)O)[C@H]([C@H](O)[C@@H](CO)O%11)O)[C@H]([C@H](O)[C@@H](CO)O%10)O)[C@H]([C@H](O)[C@@H](CO)O9)O)[C@H]([C@H](O)[C@@H](CO)O8)O)[C@H]([C@H](O)[C@@H](CO)O7)O)[C@H]([C@H](O)[C@@H](CO)O6)O)[C@H]([C@H](O)[C@@H](CO)O5)O)[C@H]([C@H](O)[C@@H](CO)O4)O)[C@H]([C@H](O)[C@@H](CO)O3)O)[C@H]([C@H](O)[C@@H](CO)O2)O)[C@@H](O)[C@H](O)[C@@H](CO)O1 JYJIGFIDKWBXDU-MNNPPOADSA-N 0.000 description 1
- 229940029339 inulin Drugs 0.000 description 1
- 239000002608 ionic liquid Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- AAJBNRZDTJPMTJ-UHFFFAOYSA-L magnesium;dinitrite Chemical class [Mg+2].[O-]N=O.[O-]N=O AAJBNRZDTJPMTJ-UHFFFAOYSA-L 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- CXKWCBBOMKCUKX-UHFFFAOYSA-M methylene blue Chemical compound [Cl-].C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 CXKWCBBOMKCUKX-UHFFFAOYSA-M 0.000 description 1
- BEGLCMHJXHIJLR-UHFFFAOYSA-N methylisothiazolinone Chemical compound CN1SC=CC1=O BEGLCMHJXHIJLR-UHFFFAOYSA-N 0.000 description 1
- 229960000907 methylthioninium chloride Drugs 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical class [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 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
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- GVKCHTBDSMQENH-UHFFFAOYSA-L phloxine B Chemical compound [Na+].[Na+].[O-]C(=O)C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1C1=C2C=C(Br)C(=O)C(Br)=C2OC2=C(Br)C([O-])=C(Br)C=C21 GVKCHTBDSMQENH-UHFFFAOYSA-L 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000003504 photosensitizing agent Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920006112 polar polymer Polymers 0.000 description 1
- 108010064470 polyaspartate Proteins 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 125000001453 quaternary ammonium group Chemical class 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 235000019192 riboflavin Nutrition 0.000 description 1
- 239000002151 riboflavin Substances 0.000 description 1
- 229960002477 riboflavin Drugs 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
- 229940075582 sorbic acid Drugs 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 229920006301 statistical copolymer Polymers 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 229940042055 systemic antimycotics triazole derivative Drugs 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000002110 toxicologic effect Effects 0.000 description 1
- 231100000027 toxicology Toxicity 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 150000003852 triazoles Chemical group 0.000 description 1
- UJMBCXLDXJUMFB-UHFFFAOYSA-K trisodium;5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)diazenyl]-4h-pyrazole-3-carboxylate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)C1=NN(C=2C=CC(=CC=2)S([O-])(=O)=O)C(=O)C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 UJMBCXLDXJUMFB-UHFFFAOYSA-K 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 125000002948 undecyl 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])[H] 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 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
- C10M173/00—Lubricating compositions containing more than 10% water
- C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/02—Water
-
- 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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/06—Well-defined aromatic compounds
-
- 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
- C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
- C10M2207/0225—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy 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
- 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
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
Definitions
- the present invention relates to the field of lubricant compositions for the lubrication of mechanical systems, such as rolling bearings, gears, bearings or engines.
- the invention is more particularly directed toward proposing new aqueous lubricants.
- Lubricant compositions also called “lubricants”, are commonly used in mechanical systems for reducing friction between parts and thus protecting the parts against wear. In addition to wear phenomena, friction can oppose the relative movement of parts that are in contact and induce energy losses that are detrimental to the optimum functioning of the mechanical system.
- Lubricants are used in many applications, for example in metalworking, notably for metal deforming operations, for gas or steam turbines in the aeronautical, naval, railway and power generation fields, for motor vehicle propulsion systems, for example for lubricating rolling bearings, gears, engines, etc.
- hydrocarbon-based lubricants are hydrocarbon-based lubricants. These hydrocarbon-based lubricants are conventionally composed of one or more base oils which are generally combined with additives intended for stimulating the lubricant performance of the base oils, for instance friction-modifying additives.
- cooling is typically provided by a cooling fluid, different from the hydrocarbon-based lubricant, for instance air, an aqueous fluid, such as water, or a mixture of water and a glycol.
- a cooling fluid different from the hydrocarbon-based lubricant, for instance air, an aqueous fluid, such as water, or a mixture of water and a glycol.
- water is an excellent cooling fluid, it does not have the tribological properties required for a lubricant, particularly in terms of reducing friction and protecting parts against wear.
- aqueous lubricant comprising, in addition to water, water-soluble polyalkylene glycols, emulsifiers, antifreeze additives of alkylene glycol or glycerol type, anticorrosion additives, antifoaming additives and friction-reducing additives.
- the present invention is directed toward proposing a novel water-based composition having tribological properties that are suitable for use its for the lubrication of mechanical systems. More particularly, the present invention relates, according to a first of its aspects, to an aqueous lubricant composition for lubricating moving parts in a mechanical system, comprising at least:
- aqueous composition is intended to denote a composition comprising water as the base fluid, in other words as the majority solvent.
- water preferably deionized water, preferably represents more than 35% by mass of the total mass of the lubricant composition.
- aqueous lubricant composition or “aqueous lubricant” will be used to denote a lubricant composition according to the invention, intended for lubricating moving parts in a mechanical system.
- osmosed water is intended to denote water which has undergone a purification, notably via a reverse osmosis process, so as to reduce the content of organic and/or mineral compounds, for example to a content of less than 5.0% by weight, preferably less than 1.0% by weight.
- the terms “demineralized water” or “ultrapure water” will be considered to be equivalent to or synonymous with the term “osmosed water”.
- osmosed water may be “deionized water”, in other words water which has undergone a purification so as to reduce the content of ions such as the Ca 2+ and HCO 3 ⁇ ions generally present in water.
- a deionized water does not comprise any ions.
- Hypericin is a natural pigment found in certain species of insects and certain plants of the genus Hypericum , the common plant being St. John's wort. Hypericin is an aromatic polycyclic dione compound with numerous biological activities.
- Hypericin has long been known for its use in traditional medicine, for example in the treatment of depression and the healing of wounds.
- hypericin is also known as an antiviral, antibacterial and antitumoral agent, or as a photosensitizer in the diagnosis and therapy of tumors.
- an aqueous composition according to the invention has good properties in terms of wear resistance and reduction of friction between moving parts in a mechanical system.
- the present invention also relates to the use of hypericin as an additive for improving the tribological properties, in particular in terms of friction reduction and wear resistance, of an aqueous composition moreover comprising at least water and glycerol, in particular comprising at least 35% by mass of water and at least 20% by mass of glycerol, relative to the total mass of the composition.
- aqueous compositions according to the invention thus prove to be suitable for use as lubricants for lubricating moving parts in a mechanical system. They can thus be used in all systems and for all applications, as a substitute for conventional hydrocarbon-based lubricants. Application examples are given in the continuation of the text.
- the present invention relates to the use of an aqueous lubricant composition according to the invention for lubricating moving parts in a mechanical system, in particular in a vehicle propulsion system, and more particularly in the transmission section of a vehicle propulsion system.
- the invention also relates to a process for lubricating a mechanical system (or parts in a mechanical system), comprising at least one step of placing at least one part of said mechanical system in contact with an aqueous lubricant composition according to the invention.
- the invention also relates to the use of an aqueous lubricant composition according to the invention for reducing friction between moving parts in a mechanical system, and also to the use of an aqueous lubricant composition according to the invention for reducing the wear of parts in a mechanical system.
- a composition according to the invention thus combines good cooling properties linked to the presence of water, and good tribological properties, in particular friction reduction and wear resistance.
- an aqueous composition according to the invention can advantageously perform the dual function of lubrication and cooling.
- the present invention also relates to the use of an aqueous lubricant composition according to the invention, for lubricating and cooling moving parts in a mechanical system, in particular in a vehicle propulsion system.
- a composition according to the invention has the advantage of being easy to formulate. In addition to the combined cooling and lubricating properties, it has good stability. Advantageously, it also has good anticorrosion properties.
- an aqueous lubricant composition according to the invention is a formulation comprising water as the majority solvent.
- major solvent means that water is present in greater amount than any other solvent that may be present in the composition.
- an aqueous lubricant composition according to the invention comprises at least 35% by mass of water, preferably between 35% and 90% by mass, more preferentially between 40% and 75% by mass, relative to the total mass of the composition.
- water affords access to a lubricant composition with good cooling properties, which can be used as a cooling fluid for moving parts in a mechanical system.
- the water used in an aqueous lubricant composition according to the invention is deionized water, also known as demineralized water.
- Deionized water does not comprise any ions, such as the Ca 2+ and HCO 3 ⁇ ions generally present in water, which are responsible for the conduction of electricity in water.
- deionized water is thus particularly advantageous in the context of the use of the aqueous lubricant according to the invention for applications requiring a fluid which conducts little or no electricity, for instance for the use of the aqueous lubricant for the lubrication and cooling of mechanical systems comprising an electrical circuit, for example electric or hybrid motors, in particular in electric or hybrid vehicles.
- An aqueous lubricant composition according to the invention thus differs from lubricants conventionally used in mechanical systems, which comprise a majority proportion of one or more water-insoluble oils.
- water-insoluble oil notably means an oil which does not substantially dissolve in water at room temperature (at about 25° C.).
- a water-insoluble oil has a solubility in water of less than 0.2 g/L at room temperature.
- an aqueous lubricant composition according to the present invention comprises less than 5% by mass, preferably less than 2% by mass, more preferentially less than 1% by mass of water-insoluble oil(s), relative to the total mass of the composition.
- an aqueous lubricant composition according to the invention is totally free of water-insoluble oil.
- an aqueous lubricant composition according to the invention uses hypericin.
- Hypericin also known as 1,3,4,6,8,13-hexahydroxy-10,11-dimethylphenanthro[1,10,9,8-opqra]perylene-7,14-dione or 4,5,7,4′,5′,7′-hexahydroxy-2,2′-dimethylnaphthodianthrone, is a compound formed of eight conjugated rings containing six hydroxyl groups, two carbonyl groups and two methyl groups, having the following chemical structure:
- Hypericin may be obtained via any process known to those skilled in the art.
- Hypericum perforatum also known as St John's wort, is a rich source of hypericin.
- Hypericum extracts can be readily prepared by extraction with an organic solvent, such as acetone, acetonitrile, dichloromethane, ethyl acetate, ethanol, hexane, isopropanol or methanol, or by extraction with a supercritical fluid, such as carbon dioxide in the supercritical state.
- an organic solvent such as acetone, acetonitrile, dichloromethane, ethyl acetate, ethanol, hexane, isopropanol or methanol
- a supercritical fluid such as carbon dioxide in the supercritical state.
- hypericin can be synthesized in the laboratory, according to synthetic methods known to those skilled in the art, as described, for example, in WO 2017/151111, U.S. Pat. No. 5,120,412 and EP 0 432 496.
- Hypericin may also be commercially available, for example from the company Sigma-Aldrich.
- the hypericin used according to the invention is generally in the form of a powder.
- hypericin is used in an aqueous lubricant composition according to the invention in an amount of from 0.01% to 5.0% by mass, preferably from 0.05% to 3.5% by mass and more preferentially from 0.1% to 1.5% by mass, relative to the total mass of the composition.
- a lubricant composition according to the invention may comprise water and hypericin in a water/hypericin mass ratio ranging from 100/1 to 200/1, in particular from 120/1 to 150/1.
- an aqueous lubricant composition according to the invention may comprise one or more compounds chosen from polycyclic dianthraquinones, preferably from hypericin and derivatives thereof.
- polycyclic dianthraquinone compounds may correspond more particularly to formula (I) below:
- Such compounds may be obtained via any process known to those skilled in the art, such as the process described in U.S. Pat. No. 7,195,783.
- an aqueous lubricant composition according to the invention may comprise at least water, glycerol and at least one polycyclic dianthraquinone compound, in particular chosen from hypericin and derivatives thereof, and more particularly of formula (I) as defined above.
- said compound(s) of polycyclic dianthraquinone type in particular chosen from hypericin and derivatives thereof, may be used in an amount of from 0.01% to 5.0% by mass, preferably from 0.05% to 3.5% by mass and more preferentially from 0.1% to 1.5% by mass, relative to the total mass of the composition.
- an aqueous lubricant composition according to the invention comprises at least glycerol.
- Glycerol is an organic molecule containing three free hydroxyl groups, of the following formula:
- an aqueous lubricant composition according to the invention may comprise at least 20% by mass of glycerol, preferably between 20% and 75% by mass, more preferentially between 30% and 50% by mass, relative to the total mass of the composition.
- a lubricant composition according to the invention may comprise water and glycerol in a water/glycerol mass ratio ranging from 0.5/1 to 2/1.
- a lubricant composition according to the invention may comprise glycerol and hypericin in a glycerol/hypericin mass ratio ranging from 50/1 to 300/1, in particular from 100/1 to 200/1.
- polyol type in particular chosen from glycols and polyalkylene glycols.
- an aqueous lubricant composition according to the invention may comprise one or more polyols, in particular chosen from glycerol, glycols, polyalkylene glycols and mixtures thereof.
- the glycols are diols in which the two hydroxyl groups are borne by different carbon atoms, preferably by vicinal carbon atoms.
- the glycols are alkylene glycols, in particular containing from 2 to 10 carbon atoms, in particular from 2 to 6 carbon atoms. Examples that may be mentioned include monoethylene glycol, diethylene glycol and propylene glycol.
- the polyalkylene glycols are chosen from water-soluble polyalkylene glycols.
- water soluble denotes a polyalkylene glycol having a solubility in water of at least 10 g/L, preferably at least 500 g/L, in water at room temperature (about 25° C.).
- the polyalkylene glycols may be more particularly formed of C 1 -C 4 , preferably C 1 -C 3 , more particularly C 2 -C 3 alkylene oxide units.
- a polyalkylene glycol used in an aqueous lubricant composition according to the invention comprises at least 50% by mass, in particular at least 80% by mass, more preferentially at least 90% by mass of propylene oxide and/or ethylene oxide units. It may be an ethylene oxide/propylene oxide statistical copolymer.
- a polyalkylene glycol used in an aqueous lubricant composition according to the invention has a kinematic viscosity measured at 100° C. (KV100), according to the standard ASTM D445, of between 100 and 5000 mm 2 /s, in particular between 150 and 3000 mm 2 /s.
- a polyalkylene glycol used in an aqueous lubricant composition according to the invention has a kinematic viscosity measured at 40° C. (KV40), according to the standard ASTM D445, of between 500 and 30 000 mm 2 /s, more particularly between 1000 and 25 000 mm 2 /s.
- the flash point of a polyalkylene glycol used in an aqueous lubricant composition according to the invention is preferably greater than or equal to 160° C., in particular greater than or equal to 220° C.
- the flash point can be measured by means of the standard ISO 2592 or ASTM D92.
- a polyalkylene glycol used in an aqueous lubricant composition according to the invention has a viscosity index, measured according to the standard ASTM D2270, of between 100 and 800, preferably between 250 and 550.
- an aqueous lubricant composition according to the invention may comprise at least water, at least one polyol compound chosen from glycerol, glycols, notably alkylene glycols, polyalkylene glycols and mixtures thereof, preferably chosen from glycerol and polyalkylene glycols as defined previously, and hypericin.
- said polyol compound(s) may be used in an amount of at least 20% by mass, preferably between 20% and 75% by mass, more preferentially between 30% and 50% by mass, relative to the total mass of the composition.
- an aqueous lubricant composition according to the invention comprises at least:
- An aqueous lubricant composition according to the invention may also comprise various additives.
- additive(s) are compatible with their use in an aqueous medium.
- the additives are used in a water-soluble or water-emulsifiable form, for example in the form of salts or ionic liquids.
- said additive(s) are chosen with regard to the intended application of the aqueous lubricant.
- a person skilled in the art will take care to choose any additives and/or the amount thereof such that the advantageous properties of the aqueous lubricant composition according to the invention, in particular the tribological properties, notably in terms of reducing friction and protecting parts against wear, and of cooling, are not adversely affected by the envisaged addition.
- an aqueous lubricant composition according to the invention may comprise one or more additives chosen from antifoaming agents, extreme-pressure agents, corrosion inhibitors, pH regulators, metal passivating agents, dyes, and mixtures thereof.
- An aqueous lubricant composition according to the invention may more particularly comprise from 0.1% to 10% by mass of additives, in particular from 1.0% to 8.0% by mass of additives, relative to the total mass of the composition.
- An aqueous lubricant composition according to the invention may comprise at least one corrosion inhibitor.
- Corrosion inhibitors advantageously make it possible to reduce or even prevent the corrosion of metal parts.
- the nature of the corrosion inhibitor(s) can be chosen with regard to the metal to be protected against corrosion, such as aluminum, steel, galvanized steel, or yellow metals, for example copper or brass.
- inorganic corrosion inhibitors that may be mentioned are sodium, potassium, calcium or magnesium nitrites, sulfites, silicates, borates or phosphates, alkali metal phosphates, and zinc, magnesium or nickel hydroxides, molybdates or sulfates.
- alkanolamines such as triethanolamine
- aliphatic monocarboxylic acids in particular containing from 4 to 15 carbon atoms, for example octanoic acid
- aliphatic dicarboxylic acids containing from 4 to 15 carbon atoms for example decanedioic acid, undecanedioic acid, dodecanedioic acid or mixtures thereof
- polycarboxylic acids optionally neutralized with triethanolamine such as 1,3,5-triazine-2,4,6-tris(6-aminocaproic acid), alkanoylamidocarboxylic acids, in particular isononanoylamidocaproic acid, and mixtures thereof.
- Borate-based amides produced by the reaction of amines or amino alcohols with boric acid, may also be used.
- An aqueous lubricant composition according to the invention may notably comprise from 0.1% to 5.0% by mass of corrosion inhibitor(s), preferably from 0.5% to 4.0% by mass, more preferentially from 1.0% to 2.5% by mass, relative to the total mass of the composition.
- An aqueous lubricant composition according to the invention may comprise at least one antiwear and/or extreme-pressure additive. Their function is to reduce wear and the coefficient of friction, or to prevent metal-to-metal contact by forming a protective film adsorbed onto these surfaces.
- antiwear additives A wide variety of antiwear additives exists, among which mention may be made of those chosen from phosphosulfur additives such as metal alkylthiophosphates or salts thereof. Amine phosphates are also antiwear additives that may be used in a composition according to the invention.
- Additives which do not supply any phosphorus may also be suitable for use, for instance polysulfides, notably sulfur-containing olefins.
- extreme-pressure additives that are suitable for use in the present invention, mention may be made of water-soluble extreme-pressure additives, such as 2,5-dimercapto-1,3,4-thiadiazole (DMTD) or a salt thereof, in particular a disodium salt (NaDMTD).
- DMTD 2,5-dimercapto-1,3,4-thiadiazole
- NaDMTD disodium salt
- An aqueous lubricant composition according to the invention may comprise between 0.01% and 10% by mass of antiwear and/or extreme-pressure additive(s) as defined above, preferably between 0.5% and 5.0% by mass, relative to the total mass of the composition.
- An aqueous lubricant composition according to the invention may comprise at least one antifoaming additive.
- Antifoaming agents make it possible to prevent foaming of the lubricant fluid.
- This may be, for example, an antifoaming agent based on polysiloxanes or acrylate polymers.
- the antifoaming agent is chosen from three-dimensional siloxanes.
- the antifoaming agents may be polar polymers such as polymethylsiloxanes or polyacrylates.
- an aqueous lubricant composition according to the invention may comprise from 0.001% to 3.0% by mass of antifoaming additive(s), preferably from 0.005% to 1.5% by mass, more preferentially from 0.01% to 1.0% by mass, relative to the total mass of the lubricant composition.
- An aqueous lubricant composition according to the invention may comprise at least one pH-regulating additive, in particular an alkaline buffer.
- the pH regulator makes it possible to maintain the desired pH of the lubricant composition, in particular so as to preserve an alkaline pH, advantageously between 8 and 11, notably so as to prevent corrosion of metal surfaces.
- the pH regulator may be chosen from the family of amines, in particular alkanolamines and amino alcohols.
- ethanolamines such as monoethanolamine (MEA), diethanolamine (DEA), triethanolamine (TEA), diglycolamine (DGA), isopropanolamines, such as monoisopropanolamine (MIPA), diisopropanolamine (DIPA) and triisopropanolamine (TIPA), ethylene amines, such as ethylenediamine (EDA), diethylenetriamine (DETA), triethylenetetramine (TETA) and tetraethylenepentamine (TEPA), alkanolamines, such as methyldiethanolamine (MDEA), cyclamines, such as cyclohexylamine, 2-amino-2-ethyl-1,3-propanediol, 2-amino-2-methyl-1-propanol and mixtures thereof.
- MIPA monoethanolamine
- DEA diethanolamine
- TIPA diglycolamine
- isopropanolamines such as monoisopropanolamine (MIPA), diiso
- An aqueous lubricant composition according to the invention may notably comprise from 0.1% to 10% by mass of pH-regulating additive(s), preferably from 0.5% to 5.0% by mass, relative to the total mass of the composition.
- An aqueous lubricant composition according to the invention may comprise at least one metal passivating agent.
- Metal passivating agents make it possible to protect metal parts by promoting the formation of metal oxide on their surface.
- the metal passivating agents may be chosen, for example, from triazole derivatives, such as tetrahydrobenzotriazole (THBTZ), tolyltriazole (TTZ), benzotriazole (BTZ), amines substituted with a triazole group, such as N,N-bis(2-ethylhexyl)-1,2,4-triazol-1-ylmethanamine, N′-bis(2-ethylhexyl)-4-methyl-1H-benzotriazol-1-methylamine, N,N-bis(heptyl)-ar-methyl-1H-benzotriazole-1-methanamine, N,N-bis(nonyl)-ar-methyl-1H-benzotriazole-1-methanamine, N,N-bis(decyl)-ar-methyl-1H-benzotriazole-1-methanamine, N,N-bis(undecyl)-ar-methyl-1H-benzotriazole-1-methanamine, N,
- the metal passivating agents are chosen from tetrahydrobenzotriazole (THBTZ), tolyltriazole (TTZ), benzotriazole (BTZ), and salts thereof, taken alone or as mixtures.
- An aqueous lubricant composition according to the invention may notably comprise from 0.01% to 2.0% by mass of metal passivating agent(s), preferably from 0.1% to 1.0% by mass, relative to the total mass of the composition.
- An aqueous lubricant composition according to the invention may comprise one or more dyes.
- the dyes may be natural or synthetic, generally organic.
- the dyes that may be used in an aqueous lubricant composition may be chosen more particularly from natural or synthetic water-soluble dyes, for example the dyes FDC Red 4, DC Red 6, DC Red 22, DC Red 28, DC Red 30, DC Red 33, DC Orange 4, DC Yellow 5, DC Yellow 6, DC Yellow 8, FDC Green 3, DC Green 5, FDC Blue 1, betanine (beetroot), carmine, a chlorophylline, methylene blue, anthocyans (enocianin, black carrot and hibiscus), caramel and riboflavin.
- natural or synthetic water-soluble dyes for example the dyes FDC Red 4, DC Red 6, DC Red 22, DC Red 28, DC Red 30, DC Red 33, DC Orange 4, DC Yellow 5, DC Yellow 6, DC Yellow 8, FDC Green 3, DC Green 5, FDC Blue 1, betanine (beetroot), carmine, a chlorophylline, methylene blue, anthocyans (enocianin, black carrot and hibiscus), caramel and riboflavin.
- An aqueous lubricant composition according to the invention may comprise between 0.01% and 2.0% by mass of dye(s), preferably between 0.01% and 1.5% by mass, more preferentially between 0.02% and 1.0% by mass, relative to the total mass of the composition.
- An aqueous lubricant composition according to the invention may comprise one or more emulsifying agents, also called emulgators. Their function is to generate stable emulsions in water.
- the emulsifying agents may more particularly be nonionic, for instance ethoxylated fatty alcohols, ethoxylated fatty acids, ethoxylated fatty amides; anionic, for example KOH or NaOH soaps; sulfonates; cationic, such as quaternary ammonium compounds; or water-soluble or water-emulsifiable carboxylic acid esters.
- an aqueous lubricant composition according to the invention may comprise from 0.01% to 10% by mass of emulsifying agent(s), preferably from 0.1% to 5.0% by mass, relative to the total mass of the lubricant composition.
- An aqueous lubricant composition according to the invention may comprise at least one sequestrant.
- Sequestrants also called chelating agents, make it possible to limit the incrustation of metal ions into the composition.
- phosphonic acid and phosphonate derivatives such as diethylenetriaminepentamethylphosphonic acid (DTPMPA), aminotri(methylenephosphonic acid) (ATMP), hydroxyethanediphosphonic acid (HEDP), 1-hydroxyethylidene 1,1-diphosphonate, 2-hydroxyethylaminedi(methylenephosphonic acid) (HEAMBP), diethylenetriaminepenta(methylenephosphonic acid) (DTMP), multifunctional organic acids and hydroxylated acids, such as ethylenediaminetetraacetic acid (EDTA), pteroyl-L-glutamic acid (PGLU), organic polyacids, such as maleic acid and polyaspartic acid, polysaccharides and carbohydrates, such as inulin, carboxymethylinulin and carboxymethylchitosan.
- DTPMPA diethylenetriaminepentamethylphosphonic acid
- ATMP aminotri(methylenephosphonic acid)
- HEDP hydroxyethanediphosphonic acid
- An aqueous lubricant composition according to the invention may comprise from 0.001% to 2.0% by mass of sequestrant(s), preferably from 0.01% to 1.0% by mass, relative to the total mass of the composition.
- An aqueous lubricant composition according to the invention may comprise at least one biocidal and/or fungicidal agent.
- the biocides and fungicides may be used to improve the biological stability of the composition by limiting the growth of bacteria, fungi and yeasts in the lubricant fluid.
- Such biocides may be chosen from parabens, aldehydes, reactive acetylacetone compounds, isothiazolinones, phenolic compounds, acid salts, halogenated compounds, quaternary ammoniums, certain alcohols and mixtures thereof.
- the biocides may be chosen from optionally substituted benzisothiazolinones (BIT), such as N-butyl-1,2-benzisothiazolin-3-one, methylisothiazolinones (MIT), mixtures of methylisothiazolinone and chloromethylisothiazolinone (MIT/CMIT), ortho-phenylphenol (OPP) or its sodium salt, 3-iodo-2-propynylbutyl carbamate (IPBC), chlorocresol and N,N-methylenebismorpholine (MBM); sorbic acid; preferably from ortho-phenylphenol (OPP) or its sodium salt, 3-iodo-2-propynylbutyl carbamate, chlorocresol, benzisothiazolinones and N,N-methyleneisomorpholine.
- BIT optionally substituted benzisothiazolinones
- BIT optionally substituted benzisothiazolinones
- MIT
- An aqueous lubricant composition according to the invention may notably comprise between 0.01% and 10% by mass of biocide(s) and/or fungicide(s), preferably between 0.5% and 5.0% by mass, relative to the total mass of the composition.
- a lubricant composition according to the invention has a kinematic viscosity, measured at 40° C. (KV40), according to the standard ASTM D445 (ISO 3104), ranging from 500 to 2000 mm 2 /s, in particular from 800 to 1200 mm 2 /s.
- a lubricant composition according to the invention has a kinematic viscosity, measured at 100° C. (KV100), according to the standard ASTM D445 (ISO 3104), ranging from 30 to 70 mm 2 /s, in particular from 40 to 60 mm 2 /s.
- an aqueous lubricant according to the invention comprises:
- an aqueous lubricant composition according to the invention comprises:
- an aqueous lubricant composition according to the invention may consist of:
- an aqueous lubricant composition according to the invention may comprise:
- an aqueous lubricant composition according to the invention may consist of:
- the present invention thus relates to the use of at least one polycyclic dianthraquinone compound, chosen from hypericin and derivatives thereof, and more particularly of formula (I) as defined above, preferably hypericin, as an additive for improving the tribological properties, in particular in terms of friction reduction and wear resistance, of an aqueous composition comprising at least water and at least one polyol compound chosen from glycerol, glycols, notably alkylene glycols, polyalkylene glycols and mixtures thereof, preferably chosen from glycerol and polyalkylene glycols as defined previously preferably glycerol.
- an aqueous lubricant composition formulated according to the invention in particular as described previously, has excellent tribological properties, notably in terms of friction reduction and wear resistance, which makes it particularly suitable for use as a lubricant fluid.
- Aqueous lubricant compositions can be used in a variety of applications. In general, they can be used as lubricant fluids for systems and applications as a substitute for conventional hydrocarbon-based lubricants.
- An aqueous lubricant composition according to the invention may thus be used for lubricating gears, rolling bearings, or bearings such as rolling or sliding bearings, or motors.
- an aqueous lubricant composition according to the invention may be used for lubricating an engine, notably an internal combustion engine, for example a vehicle engine.
- an engine notably an internal combustion engine, for example a vehicle engine.
- it makes it possible to reduce the wear of the engine parts.
- an aqueous lubricant composition according to the invention may be used for metal working, for example for processing metals, for example aluminum, steel, galvanized steel or yellow metals.
- a lubricant composition according to the invention formed mainly of water, has little toxicological impact notably with respect to persons using this lubricant.
- water is the majority solvent of an aqueous lubricant according to the invention, the treated surface is correctly lubricated.
- An aqueous lubricant composition according to the invention may also find an advantageous application for the lubrication of an electric or hybrid vehicle propulsion system, and more particularly of the motor, the power electrics, the transmission and/or the battery.
- An aqueous composition according to the invention may thus be used both as a cooling fluid and as a lubricant, for example in a motorization system of an electric or hybrid vehicle.
- composition according to the invention simultaneously affords good properties in terms of cooling and lubrication of the parts of the motorization system of an electric or hybrid vehicle.
- a composition according to the invention makes it possible to cool and lubricate an electric motor of an electric or hybrid vehicle. It notably proves to be effective for cooling the power electronics and/or the rotor and/or the stator of an electric motor. It can also ensure lubrication of the rolling bearings located between the rotor and the stator of an electric motor of an electric or hybrid vehicle.
- a composition according to the invention makes it possible to ensure lubrication of the transmission, when it is present, in particular the gearbox, of an electric or hybrid vehicle. Also, a composition according to the invention advantageously makes it possible to effectively cool the battery present in an electric or hybrid vehicle.
- composition according to the invention make it possible to define uses according to the invention that are also particular, advantageous or preferred.
- test conditions on the reciprocating ball-on-flat tribometer are:
- a reference composition (I0), comprising only glycerol and water, and a composition in accordance with the invention (I1), corresponding to composition I0 supplemented with hypericin, were prepared by simply mixing, at room temperature, of the components indicated in Table 2. The percentages are expressed on a mass basis relative to the total mass of the composition.
- composition in accordance with the invention (I1) has reduced wear and a reduced coefficient of friction compared to the reference composition (I0), which does not contain hypericin.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
Description
- The present invention relates to the field of lubricant compositions for the lubrication of mechanical systems, such as rolling bearings, gears, bearings or engines. The invention is more particularly directed toward proposing new aqueous lubricants.
- Lubricant compositions, also called “lubricants”, are commonly used in mechanical systems for reducing friction between parts and thus protecting the parts against wear. In addition to wear phenomena, friction can oppose the relative movement of parts that are in contact and induce energy losses that are detrimental to the optimum functioning of the mechanical system.
- Lubricants are used in many applications, for example in metalworking, notably for metal deforming operations, for gas or steam turbines in the aeronautical, naval, railway and power generation fields, for motor vehicle propulsion systems, for example for lubricating rolling bearings, gears, engines, etc.
- The most common lubricants are hydrocarbon-based lubricants. These hydrocarbon-based lubricants are conventionally composed of one or more base oils which are generally combined with additives intended for stimulating the lubricant performance of the base oils, for instance friction-modifying additives.
- Moreover, friction between the moving parts generates heat, and it may be necessary to simultaneously provide for cooling of the mechanical systems. This cooling is typically provided by a cooling fluid, different from the hydrocarbon-based lubricant, for instance air, an aqueous fluid, such as water, or a mixture of water and a glycol.
- Nowadays, the development of new lubricants must take into consideration new constraints directed toward dispensing with the use of toxic or potentially toxic solvents, or toward reducing their impact on the environment and carbon dioxide emissions. In this respect, water-based formulations are of growing interest.
- Although water is an excellent cooling fluid, it does not have the tribological properties required for a lubricant, particularly in terms of reducing friction and protecting parts against wear.
- Water-based lubricant compositions, supplemented with various additives, have already been studied. For example, US 2012/0149616 proposes an aqueous lubricant comprising, in addition to water, water-soluble polyalkylene glycols, emulsifiers, antifreeze additives of alkylene glycol or glycerol type, anticorrosion additives, antifoaming additives and friction-reducing additives.
- The present invention is directed toward proposing a novel water-based composition having tribological properties that are suitable for use its for the lubrication of mechanical systems. More particularly, the present invention relates, according to a first of its aspects, to an aqueous lubricant composition for lubricating moving parts in a mechanical system, comprising at least:
-
- water, preferably deionized water;
- glycerol; and
- hypericin.
- For the purposes of the present invention, the term “aqueous composition” is intended to denote a composition comprising water as the base fluid, in other words as the majority solvent. In particular, water, preferably deionized water, preferably represents more than 35% by mass of the total mass of the lubricant composition.
- In the continuation of the text, the term “aqueous lubricant composition” or “aqueous lubricant” will be used to denote a lubricant composition according to the invention, intended for lubricating moving parts in a mechanical system.
- For the purposes of the present invention, the term “osmosed water” is intended to denote water which has undergone a purification, notably via a reverse osmosis process, so as to reduce the content of organic and/or mineral compounds, for example to a content of less than 5.0% by weight, preferably less than 1.0% by weight. In the continuation of the text, the terms “demineralized water” or “ultrapure water” will be considered to be equivalent to or synonymous with the term “osmosed water”. In particular, osmosed water may be “deionized water”, in other words water which has undergone a purification so as to reduce the content of ions such as the Ca2+ and HCO3 − ions generally present in water. Preferably, a deionized water does not comprise any ions.
- Hypericin is a natural pigment found in certain species of insects and certain plants of the genus Hypericum, the common plant being St. John's wort. Hypericin is an aromatic polycyclic dione compound with numerous biological activities.
- Hypericin has long been known for its use in traditional medicine, for example in the treatment of depression and the healing of wounds. In addition, hypericin is also known as an antiviral, antibacterial and antitumoral agent, or as a photosensitizer in the diagnosis and therapy of tumors.
- However, to the inventors' knowledge, hypericin has never been proposed for use in lubricants intended for lubricating mechanical systems.
- Contrary to all expectation, the inventors have discovered that it is possible, by supplementing a mixture of water and glycerol with hypericin, to obtain an aqueous formulation which has excellent tribological properties.
- In particular, an aqueous composition according to the invention has good properties in terms of wear resistance and reduction of friction between moving parts in a mechanical system. Thus, the present invention also relates to the use of hypericin as an additive for improving the tribological properties, in particular in terms of friction reduction and wear resistance, of an aqueous composition moreover comprising at least water and glycerol, in particular comprising at least 35% by mass of water and at least 20% by mass of glycerol, relative to the total mass of the composition.
- The aqueous compositions according to the invention thus prove to be suitable for use as lubricants for lubricating moving parts in a mechanical system. They can thus be used in all systems and for all applications, as a substitute for conventional hydrocarbon-based lubricants. Application examples are given in the continuation of the text.
- According to yet another of its aspects, the present invention relates to the use of an aqueous lubricant composition according to the invention for lubricating moving parts in a mechanical system, in particular in a vehicle propulsion system, and more particularly in the transmission section of a vehicle propulsion system.
- According to another of its aspects, the invention also relates to a process for lubricating a mechanical system (or parts in a mechanical system), comprising at least one step of placing at least one part of said mechanical system in contact with an aqueous lubricant composition according to the invention.
- The invention also relates to the use of an aqueous lubricant composition according to the invention for reducing friction between moving parts in a mechanical system, and also to the use of an aqueous lubricant composition according to the invention for reducing the wear of parts in a mechanical system.
- Advantageously, a composition according to the invention thus combines good cooling properties linked to the presence of water, and good tribological properties, in particular friction reduction and wear resistance. Thus, an aqueous composition according to the invention can advantageously perform the dual function of lubrication and cooling.
- Thus, the present invention also relates to the use of an aqueous lubricant composition according to the invention, for lubricating and cooling moving parts in a mechanical system, in particular in a vehicle propulsion system.
- It is thus possible to take advantage of an aqueous composition according to the invention to dispense with the use of two separate fluids, on the one hand a cooling fluid and on the other hand a lubricant fluid.
- Also, a composition according to the invention has the advantage of being easy to formulate. In addition to the combined cooling and lubricating properties, it has good stability. Advantageously, it also has good anticorrosion properties.
- Other features, variants and advantages of an aqueous lubricant composition according to the invention will emerge more clearly on reading the description and the examples that follow, which are given as nonlimiting illustrations of the invention.
- The terms “between . . . and . . . ”, “ranging from . . . to . . . ”, “formed from . . . to . . . ” and “varying from . . . to . . . ” should be understood as being limits inclusive, unless otherwise mentioned. In the description and the examples, unless otherwise indicated, the percentages are weight percentages. The percentages are thus expressed on a mass basis relative to the total mass of the composition. The temperature is expressed in degrees Celsius unless otherwise indicated, and the pressure is atmospheric pressure, unless otherwise indicated.
- As mentioned previously, an aqueous lubricant composition according to the invention, also called an aqueous lubricant, is a formulation comprising water as the majority solvent.
- For the purposes of the invention, the term “majority solvent” means that water is present in greater amount than any other solvent that may be present in the composition.
- Preferably, an aqueous lubricant composition according to the invention comprises at least 35% by mass of water, preferably between 35% and 90% by mass, more preferentially between 40% and 75% by mass, relative to the total mass of the composition.
- Advantageously, in addition to its role as a solvent, water affords access to a lubricant composition with good cooling properties, which can be used as a cooling fluid for moving parts in a mechanical system.
- According to a particular embodiment, the water used in an aqueous lubricant composition according to the invention is deionized water, also known as demineralized water.
- Deionized water does not comprise any ions, such as the Ca2+ and HCO3 − ions generally present in water, which are responsible for the conduction of electricity in water.
- The use of deionized water is thus particularly advantageous in the context of the use of the aqueous lubricant according to the invention for applications requiring a fluid which conducts little or no electricity, for instance for the use of the aqueous lubricant for the lubrication and cooling of mechanical systems comprising an electrical circuit, for example electric or hybrid motors, in particular in electric or hybrid vehicles.
- An aqueous lubricant composition according to the invention thus differs from lubricants conventionally used in mechanical systems, which comprise a majority proportion of one or more water-insoluble oils.
- The term “water-insoluble oil” notably means an oil which does not substantially dissolve in water at room temperature (at about 25° C.). In particular, a water-insoluble oil has a solubility in water of less than 0.2 g/L at room temperature.
- This notably concerns lubricant base oils belonging to groups I to V according to the classes defined in the API classification (or their equivalents according to the ATIEL classification) and mixtures thereof.
- Preferably, an aqueous lubricant composition according to the present invention comprises less than 5% by mass, preferably less than 2% by mass, more preferentially less than 1% by mass of water-insoluble oil(s), relative to the total mass of the composition.
- Advantageously, an aqueous lubricant composition according to the invention is totally free of water-insoluble oil.
- Hypericin
- As mentioned previously, an aqueous lubricant composition according to the invention uses hypericin.
- Hypericin, also known as 1,3,4,6,8,13-hexahydroxy-10,11-dimethylphenanthro[1,10,9,8-opqra]perylene-7,14-dione or 4,5,7,4′,5′,7′-hexahydroxy-2,2′-dimethylnaphthodianthrone, is a compound formed of eight conjugated rings containing six hydroxyl groups, two carbonyl groups and two methyl groups, having the following chemical structure:
- Hypericin may be obtained via any process known to those skilled in the art.
- In particular, it may be obtained from fresh or dried plants of the Hypericum genus. Hypericum perforatum, also known as St John's wort, is a rich source of hypericin.
- Hypericum extracts can be readily prepared by extraction with an organic solvent, such as acetone, acetonitrile, dichloromethane, ethyl acetate, ethanol, hexane, isopropanol or methanol, or by extraction with a supercritical fluid, such as carbon dioxide in the supercritical state. An example of such a process is notably described in U.S. Pat. No. 7,195,783.
- Alternatively, hypericin can be synthesized in the laboratory, according to synthetic methods known to those skilled in the art, as described, for example, in WO 2017/151111, U.S. Pat. No. 5,120,412 and EP 0 432 496.
- Hypericin may also be commercially available, for example from the company Sigma-Aldrich.
- The hypericin used according to the invention is generally in the form of a powder.
- Preferably, hypericin is used in an aqueous lubricant composition according to the invention in an amount of from 0.01% to 5.0% by mass, preferably from 0.05% to 3.5% by mass and more preferentially from 0.1% to 1.5% by mass, relative to the total mass of the composition. In particular, a lubricant composition according to the invention may comprise water and hypericin in a water/hypericin mass ratio ranging from 100/1 to 200/1, in particular from 120/1 to 150/1.
- According to an embodiment variant, it is possible to use, alternatively to or in conjunction with hypericin, one or more other polycyclic dianthraquinone compounds, and more generally one or more anthraquinone-based compounds.
- Thus, more generally, an aqueous lubricant composition according to the invention may comprise one or more compounds chosen from polycyclic dianthraquinones, preferably from hypericin and derivatives thereof.
- The polycyclic dianthraquinone compounds may correspond more particularly to formula (I) below:
- in which:
-
- R1, R6, R7 and R12 are chosen, independently of each other, from —H, —OH, —OR and —O(CO)R;
- R3, R4, R9 and R10 are chosen, independently of each other, from —H, —R, —OH, —OR, —O(CO)R, —CH2—OH, —CH2—OR, —CH2—O(CO)R, —COOH and —COOR, preferably from —H, —OH, —OR, —O(CO)R, —CH2—OH, —CH2—OR and CH2—O(CO)R;
- R2, R5, R8 and R11 are chosen, independently of each other, from —H, —R, —F, —Cl, —Br, —I and —SO3H, preferably from —H and —R;
- R is an alkyl group, in particular comprising from 1 to 10 carbon atoms.
- Such compounds may be obtained via any process known to those skilled in the art, such as the process described in U.S. Pat. No. 7,195,783.
- Thus, according to an embodiment variant, an aqueous lubricant composition according to the invention may comprise at least water, glycerol and at least one polycyclic dianthraquinone compound, in particular chosen from hypericin and derivatives thereof, and more particularly of formula (I) as defined above.
- In particular, said compound(s) of polycyclic dianthraquinone type, in particular chosen from hypericin and derivatives thereof, may be used in an amount of from 0.01% to 5.0% by mass, preferably from 0.05% to 3.5% by mass and more preferentially from 0.1% to 1.5% by mass, relative to the total mass of the composition.
- Glycerol
- As indicated previously, an aqueous lubricant composition according to the invention comprises at least glycerol.
- Glycerol is an organic molecule containing three free hydroxyl groups, of the following formula:
- Preferably, an aqueous lubricant composition according to the invention may comprise at least 20% by mass of glycerol, preferably between 20% and 75% by mass, more preferentially between 30% and 50% by mass, relative to the total mass of the composition. In particular, a lubricant composition according to the invention may comprise water and glycerol in a water/glycerol mass ratio ranging from 0.5/1 to 2/1.
- In particular, a lubricant composition according to the invention may comprise glycerol and hypericin in a glycerol/hypericin mass ratio ranging from 50/1 to 300/1, in particular from 100/1 to 200/1.
- According to an embodiment variant, it is possible to use, as an alternative to glycerol or in combination therewith, one or more other compounds of polyol type, in particular chosen from glycols and polyalkylene glycols.
- Thus, more generally, an aqueous lubricant composition according to the invention may comprise one or more polyols, in particular chosen from glycerol, glycols, polyalkylene glycols and mixtures thereof.
- The glycols are diols in which the two hydroxyl groups are borne by different carbon atoms, preferably by vicinal carbon atoms.
- Preferably, the glycols are alkylene glycols, in particular containing from 2 to 10 carbon atoms, in particular from 2 to 6 carbon atoms. Examples that may be mentioned include monoethylene glycol, diethylene glycol and propylene glycol.
- The polyalkylene glycols (noted “PAG”) are chosen from water-soluble polyalkylene glycols.
- The term “water soluble” denotes a polyalkylene glycol having a solubility in water of at least 10 g/L, preferably at least 500 g/L, in water at room temperature (about 25° C.). The polyalkylene glycols may be more particularly formed of C1-C4, preferably C1-C3, more particularly C2-C3 alkylene oxide units.
- Advantageously, a polyalkylene glycol used in an aqueous lubricant composition according to the invention comprises at least 50% by mass, in particular at least 80% by mass, more preferentially at least 90% by mass of propylene oxide and/or ethylene oxide units. It may be an ethylene oxide/propylene oxide statistical copolymer.
- Preferably, a polyalkylene glycol used in an aqueous lubricant composition according to the invention has a kinematic viscosity measured at 100° C. (KV100), according to the standard ASTM D445, of between 100 and 5000 mm2/s, in particular between 150 and 3000 mm2/s. Preferably, a polyalkylene glycol used in an aqueous lubricant composition according to the invention has a kinematic viscosity measured at 40° C. (KV40), according to the standard ASTM D445, of between 500 and 30 000 mm2/s, more particularly between 1000 and 25 000 mm2/s.
- The flash point of a polyalkylene glycol used in an aqueous lubricant composition according to the invention is preferably greater than or equal to 160° C., in particular greater than or equal to 220° C. The flash point can be measured by means of the standard ISO 2592 or ASTM D92.
- Preferably, a polyalkylene glycol used in an aqueous lubricant composition according to the invention has a viscosity index, measured according to the standard ASTM D2270, of between 100 and 800, preferably between 250 and 550.
- Thus, according to an embodiment variant, an aqueous lubricant composition according to the invention may comprise at least water, at least one polyol compound chosen from glycerol, glycols, notably alkylene glycols, polyalkylene glycols and mixtures thereof, preferably chosen from glycerol and polyalkylene glycols as defined previously, and hypericin.
- In particular, said polyol compound(s) may be used in an amount of at least 20% by mass, preferably between 20% and 75% by mass, more preferentially between 30% and 50% by mass, relative to the total mass of the composition.
- Thus, according to an embodiment variant, an aqueous lubricant composition according to the invention comprises at least:
-
- water,
- at least one polyol compound chosen from glycerol, glycols, notably alkylene glycols, polyalkylene glycols and mixtures thereof, preferably chosen from glycerol and polyalkylene glycols as defined previously; preferably glycerol; and
- at least one polycyclic dianthraquinone compound, in particular chosen from hypericin and derivatives thereof, and more particularly of formula (I) as defined above, preferably hypericin.
- Additives
- An aqueous lubricant composition according to the invention may also comprise various additives.
- It is understood that said additive(s) are compatible with their use in an aqueous medium. Advantageously, the additives are used in a water-soluble or water-emulsifiable form, for example in the form of salts or ionic liquids.
- Needless to say, said additive(s) are chosen with regard to the intended application of the aqueous lubricant.
- Needless to say, a person skilled in the art will take care to choose any additives and/or the amount thereof such that the advantageous properties of the aqueous lubricant composition according to the invention, in particular the tribological properties, notably in terms of reducing friction and protecting parts against wear, and of cooling, are not adversely affected by the envisaged addition.
- Such additives may be chosen more particularly from antifoaming agents, biocides, pH regulators, corrosion inhibitors, antiwear and/or extreme-pressure additives, sequestrants, metal passivating agents, dyes, dispersants, emulsifying agents, and mixtures thereof. Advantageously, an aqueous lubricant composition according to the invention may comprise one or more additives chosen from antifoaming agents, extreme-pressure agents, corrosion inhibitors, pH regulators, metal passivating agents, dyes, and mixtures thereof.
- An aqueous lubricant composition according to the invention may more particularly comprise from 0.1% to 10% by mass of additives, in particular from 1.0% to 8.0% by mass of additives, relative to the total mass of the composition.
- Corrosion Inhibitor
- An aqueous lubricant composition according to the invention may comprise at least one corrosion inhibitor. Corrosion inhibitors advantageously make it possible to reduce or even prevent the corrosion of metal parts. The nature of the corrosion inhibitor(s) can be chosen with regard to the metal to be protected against corrosion, such as aluminum, steel, galvanized steel, or yellow metals, for example copper or brass.
- Among the inorganic corrosion inhibitors that may be mentioned are sodium, potassium, calcium or magnesium nitrites, sulfites, silicates, borates or phosphates, alkali metal phosphates, and zinc, magnesium or nickel hydroxides, molybdates or sulfates.
- Among the organic corrosion inhibitors, mention may be made of alkanolamines, such as triethanolamine, aliphatic monocarboxylic acids, in particular containing from 4 to 15 carbon atoms, for example octanoic acid, aliphatic dicarboxylic acids containing from 4 to 15 carbon atoms, for example decanedioic acid, undecanedioic acid, dodecanedioic acid or mixtures thereof, polycarboxylic acids optionally neutralized with triethanolamine, such as 1,3,5-triazine-2,4,6-tris(6-aminocaproic acid), alkanoylamidocarboxylic acids, in particular isononanoylamidocaproic acid, and mixtures thereof. Borate-based amides, produced by the reaction of amines or amino alcohols with boric acid, may also be used.
- An aqueous lubricant composition according to the invention may notably comprise from 0.1% to 5.0% by mass of corrosion inhibitor(s), preferably from 0.5% to 4.0% by mass, more preferentially from 1.0% to 2.5% by mass, relative to the total mass of the composition.
- Antiwear/Extreme-Pressure Additive
- An aqueous lubricant composition according to the invention may comprise at least one antiwear and/or extreme-pressure additive. Their function is to reduce wear and the coefficient of friction, or to prevent metal-to-metal contact by forming a protective film adsorbed onto these surfaces.
- A wide variety of antiwear additives exists, among which mention may be made of those chosen from phosphosulfur additives such as metal alkylthiophosphates or salts thereof. Amine phosphates are also antiwear additives that may be used in a composition according to the invention.
- Additives which do not supply any phosphorus may also be suitable for use, for instance polysulfides, notably sulfur-containing olefins.
- Among the extreme-pressure additives that are suitable for use in the present invention, mention may be made of water-soluble extreme-pressure additives, such as 2,5-dimercapto-1,3,4-thiadiazole (DMTD) or a salt thereof, in particular a disodium salt (NaDMTD).
- An aqueous lubricant composition according to the invention may comprise between 0.01% and 10% by mass of antiwear and/or extreme-pressure additive(s) as defined above, preferably between 0.5% and 5.0% by mass, relative to the total mass of the composition.
- Antifoaming Agent
- An aqueous lubricant composition according to the invention may comprise at least one antifoaming additive. Antifoaming agents make it possible to prevent foaming of the lubricant fluid.
- This may be, for example, an antifoaming agent based on polysiloxanes or acrylate polymers. Preferably, the antifoaming agent is chosen from three-dimensional siloxanes. Also, the antifoaming agents may be polar polymers such as polymethylsiloxanes or polyacrylates.
- In particular, an aqueous lubricant composition according to the invention may comprise from 0.001% to 3.0% by mass of antifoaming additive(s), preferably from 0.005% to 1.5% by mass, more preferentially from 0.01% to 1.0% by mass, relative to the total mass of the lubricant composition.
- pH Regulator
- An aqueous lubricant composition according to the invention may comprise at least one pH-regulating additive, in particular an alkaline buffer. The pH regulator makes it possible to maintain the desired pH of the lubricant composition, in particular so as to preserve an alkaline pH, advantageously between 8 and 11, notably so as to prevent corrosion of metal surfaces.
- The pH regulator may be chosen from the family of amines, in particular alkanolamines and amino alcohols.
- It may notably be a pH-regulating additive chosen from ethanolamines, such as monoethanolamine (MEA), diethanolamine (DEA), triethanolamine (TEA), diglycolamine (DGA), isopropanolamines, such as monoisopropanolamine (MIPA), diisopropanolamine (DIPA) and triisopropanolamine (TIPA), ethylene amines, such as ethylenediamine (EDA), diethylenetriamine (DETA), triethylenetetramine (TETA) and tetraethylenepentamine (TEPA), alkanolamines, such as methyldiethanolamine (MDEA), cyclamines, such as cyclohexylamine, 2-amino-2-ethyl-1,3-propanediol, 2-amino-2-methyl-1-propanol and mixtures thereof.
- An aqueous lubricant composition according to the invention may notably comprise from 0.1% to 10% by mass of pH-regulating additive(s), preferably from 0.5% to 5.0% by mass, relative to the total mass of the composition.
- Metal Passivating Agents
- An aqueous lubricant composition according to the invention may comprise at least one metal passivating agent. Metal passivating agents make it possible to protect metal parts by promoting the formation of metal oxide on their surface.
- The metal passivating agents may be chosen, for example, from triazole derivatives, such as tetrahydrobenzotriazole (THBTZ), tolyltriazole (TTZ), benzotriazole (BTZ), amines substituted with a triazole group, such as N,N-bis(2-ethylhexyl)-1,2,4-triazol-1-ylmethanamine, N′-bis(2-ethylhexyl)-4-methyl-1H-benzotriazol-1-methylamine, N,N-bis(heptyl)-ar-methyl-1H-benzotriazole-1-methanamine, N,N-bis(nonyl)-ar-methyl-1H-benzotriazole-1-methanamine, N,N-bis(decyl)-ar-methyl-1H-benzotriazole-1-methanamine, N,N-bis(undecyl)-ar-methyl-1H-benzotriazole-1-methanamine, N,N-bis(dodecyl)-ar-methyl-1H-benzotriazole-1-methanamine N,N-bis(2-ethylhexyl)-ar-methyl-1H-benzotriazole-1-methanamine, 1,2,4-triazoles, benzimidazoles, 2-alkyldithiobenzimidazoles, 2-alkyldithiobenzothiazoles, 2-(N,N-dialkyldithiocarbamoyl)benzothiazoles, 2,5-bis(alkyldithio)-1,3,4-thiadiazoles, such as 2,5-bis(tert-octyldithio)-1,3,4-thiadiazole, 2,5-bis(tert-nonyldithio)-1,3,4-thiadiazole, 2,5-bis(tert-decyldithio)-1,3,4-thiadiazole, 2,5-bis(tert-undecyldithio)-1,3,4-thiadiazole, 2,5-bis(tert-dodecyldithio)-1,3,4-thiadiazole, 2,5-bis(tert-tridecyldithio)-1,3,4-thiadiazole, 2,5-bis(tert-tetradecyldithio)-1,3,4-thiadiazole, 2,5-bis(tert-pentadecyldithio)-1,3,4-thiadiazole, 2,5-bis(tert-hexadecyldithio)-1,3,4-thiadiazole, 2,5-bis(tert-heptadecyldithio)-1,3,4-thiadiazole, 2,5-bis(tert-octadecyldithio)-1,3,4-thiadiazole, 2,5-bis(tert-nonadecyldithio)-1,3,4-thiadiazole, 2,5-bis(tert-eicosyldithio)-1,3,4-thiadiazole, 2,5-bis(N,N-dialkyldithiocarbamoyl)-1,3,4-thiadiazoles, 2-alkyldithio-5-mercaptothiadiazoles, and mixtures thereof.
- Preferably, the metal passivating agents are chosen from tetrahydrobenzotriazole (THBTZ), tolyltriazole (TTZ), benzotriazole (BTZ), and salts thereof, taken alone or as mixtures.
- An aqueous lubricant composition according to the invention may notably comprise from 0.01% to 2.0% by mass of metal passivating agent(s), preferably from 0.1% to 1.0% by mass, relative to the total mass of the composition.
- Dyes
- An aqueous lubricant composition according to the invention may comprise one or more dyes. The dyes may be natural or synthetic, generally organic.
- The dyes that may be used in an aqueous lubricant composition may be chosen more particularly from natural or synthetic water-soluble dyes, for example the dyes FDC Red 4, DC Red 6, DC Red 22, DC Red 28, DC Red 30, DC Red 33, DC Orange 4, DC Yellow 5, DC Yellow 6, DC Yellow 8, FDC Green 3, DC Green 5, FDC Blue 1, betanine (beetroot), carmine, a chlorophylline, methylene blue, anthocyans (enocianin, black carrot and hibiscus), caramel and riboflavin.
- An aqueous lubricant composition according to the invention may comprise between 0.01% and 2.0% by mass of dye(s), preferably between 0.01% and 1.5% by mass, more preferentially between 0.02% and 1.0% by mass, relative to the total mass of the composition.
- Emulsifying Agents
- An aqueous lubricant composition according to the invention may comprise one or more emulsifying agents, also called emulgators. Their function is to generate stable emulsions in water.
- The emulsifying agents may more particularly be nonionic, for instance ethoxylated fatty alcohols, ethoxylated fatty acids, ethoxylated fatty amides; anionic, for example KOH or NaOH soaps; sulfonates; cationic, such as quaternary ammonium compounds; or water-soluble or water-emulsifiable carboxylic acid esters.
- In particular, an aqueous lubricant composition according to the invention may comprise from 0.01% to 10% by mass of emulsifying agent(s), preferably from 0.1% to 5.0% by mass, relative to the total mass of the lubricant composition.
- Sequestrants
- An aqueous lubricant composition according to the invention may comprise at least one sequestrant. Sequestrants, also called chelating agents, make it possible to limit the incrustation of metal ions into the composition.
- As examples of sequestrants, mention may be made of phosphonic acid and phosphonate derivatives, such as diethylenetriaminepentamethylphosphonic acid (DTPMPA), aminotri(methylenephosphonic acid) (ATMP), hydroxyethanediphosphonic acid (HEDP), 1-hydroxyethylidene 1,1-diphosphonate, 2-hydroxyethylaminedi(methylenephosphonic acid) (HEAMBP), diethylenetriaminepenta(methylenephosphonic acid) (DTMP), multifunctional organic acids and hydroxylated acids, such as ethylenediaminetetraacetic acid (EDTA), pteroyl-L-glutamic acid (PGLU), organic polyacids, such as maleic acid and polyaspartic acid, polysaccharides and carbohydrates, such as inulin, carboxymethylinulin and carboxymethylchitosan.
- An aqueous lubricant composition according to the invention may comprise from 0.001% to 2.0% by mass of sequestrant(s), preferably from 0.01% to 1.0% by mass, relative to the total mass of the composition.
- Biocides and Fungicides
- An aqueous lubricant composition according to the invention may comprise at least one biocidal and/or fungicidal agent. The biocides and fungicides may be used to improve the biological stability of the composition by limiting the growth of bacteria, fungi and yeasts in the lubricant fluid.
- Such biocides may be chosen from parabens, aldehydes, reactive acetylacetone compounds, isothiazolinones, phenolic compounds, acid salts, halogenated compounds, quaternary ammoniums, certain alcohols and mixtures thereof.
- Preferably, the biocides may be chosen from optionally substituted benzisothiazolinones (BIT), such as N-butyl-1,2-benzisothiazolin-3-one, methylisothiazolinones (MIT), mixtures of methylisothiazolinone and chloromethylisothiazolinone (MIT/CMIT), ortho-phenylphenol (OPP) or its sodium salt, 3-iodo-2-propynylbutyl carbamate (IPBC), chlorocresol and N,N-methylenebismorpholine (MBM); sorbic acid; preferably from ortho-phenylphenol (OPP) or its sodium salt, 3-iodo-2-propynylbutyl carbamate, chlorocresol, benzisothiazolinones and N,N-methyleneisomorpholine.
- An aqueous lubricant composition according to the invention may notably comprise between 0.01% and 10% by mass of biocide(s) and/or fungicide(s), preferably between 0.5% and 5.0% by mass, relative to the total mass of the composition.
- Advantageously, a lubricant composition according to the invention has a kinematic viscosity, measured at 40° C. (KV40), according to the standard ASTM D445 (ISO 3104), ranging from 500 to 2000 mm2/s, in particular from 800 to 1200 mm2/s.
- Advantageously, a lubricant composition according to the invention has a kinematic viscosity, measured at 100° C. (KV100), according to the standard ASTM D445 (ISO 3104), ranging from 30 to 70 mm2/s, in particular from 40 to 60 mm2/s.
- According to one embodiment of the invention, an aqueous lubricant according to the invention comprises:
-
- at least 35% by mass, preferably between 35% and 90% by mass, more preferentially between 40% and 75% by mass of water, in particular deionized water;
- at least 20% by mass, preferably between 20% and 75% by mass, more preferentially between 30% and 50% by mass of glycerol;
- from 0.01% to 5.0% by mass, preferably from 0.05% to 3.5% by mass and more preferentially from 0.1% to 1.5% by mass of hypericin,
the contents being expressed relative to the total mass of the lubricant composition.
- According to a particular embodiment, an aqueous lubricant composition according to the invention comprises:
-
- at least 35% by mass of water, preferably deionized water;
- at least 20% by mass of glycerol;
- from 0.01% to 5.0% by mass of hypericin; and
- optionally from 0.1% to 10% by mass of one or more additives chosen from antifoaming agents, extreme-pressure agents, corrosion inhibitors, pH regulators, metal passivating agents, dyes, emulsifying agents, sequestrants, and mixtures thereof, the contents being expressed relative to the total mass of the lubricant composition.
- In particular, an aqueous lubricant composition according to the invention may consist of:
-
- at least 20% by mass of glycerol;
- from 0.01% to 5.0% by mass of hypericin; and
- optionally from 0.1% to 10% by mass of one or more additives chosen from antifoaming agents, extreme-pressure agents, corrosion inhibitors, pH regulators, metal passivating agents, dyes, emulsifying agents, sequestrants, and mixtures thereof,
- the contents being expressed relative to the total mass of the lubricant composition;
- the remainder being water, preferably deionized water.
- According to an embodiment variant, an aqueous lubricant composition according to the invention may comprise:
-
- at least 35% by mass of water, preferably deionized water;
- at least 20% by mass of one or more polyol compounds chosen from glycerol, glycols, notably alkylene glycols, polyalkylene glycols and mixtures thereof, preferably chosen from glycerol and polyalkylene glycols as defined previously; preferably glycerol; and
- from 0.01% to 5.0% by mass of one or more compounds of polycyclic dianthraquinone type, in particular chosen from hypericin and derivatives thereof, and more particularly of formula (I) as defined above, preferably hypericin;
- the contents being expressed relative to the total mass of the lubricant composition.
- More particularly, according to an embodiment variant, an aqueous lubricant composition according to the invention may consist of:
-
- at least 20% by mass of one or more polyol compounds chosen from glycerol, glycols, notably alkylene glycols, polyalkylene glycols and mixtures thereof, preferably chosen from glycerol and polyalkylene glycols as defined previously; preferably glycerol; and
- from 0.01% to 5.0% by mass of one or more polycyclic dianthraquinone compounds, in particular chosen from hypericin and derivatives thereof, and more particularly of formula (I) as defined above, preferably hypericin;
- the contents being expressed relative to the total mass of the lubricant composition;
- the remainder being water, preferably deionized water.
- More generally, the present invention thus relates to the use of at least one polycyclic dianthraquinone compound, chosen from hypericin and derivatives thereof, and more particularly of formula (I) as defined above, preferably hypericin, as an additive for improving the tribological properties, in particular in terms of friction reduction and wear resistance, of an aqueous composition comprising at least water and at least one polyol compound chosen from glycerol, glycols, notably alkylene glycols, polyalkylene glycols and mixtures thereof, preferably chosen from glycerol and polyalkylene glycols as defined previously preferably glycerol.
- Applications
- As mentioned previously, an aqueous lubricant composition formulated according to the invention, in particular as described previously, has excellent tribological properties, notably in terms of friction reduction and wear resistance, which makes it particularly suitable for use as a lubricant fluid.
- Aqueous lubricant compositions can be used in a variety of applications. In general, they can be used as lubricant fluids for systems and applications as a substitute for conventional hydrocarbon-based lubricants.
- An aqueous lubricant composition according to the invention may thus be used for lubricating gears, rolling bearings, or bearings such as rolling or sliding bearings, or motors.
- By way of example, an aqueous lubricant composition according to the invention may be used for lubricating an engine, notably an internal combustion engine, for example a vehicle engine. Advantageously, it makes it possible to reduce the wear of the engine parts.
- In another application variant, an aqueous lubricant composition according to the invention may be used for metal working, for example for processing metals, for example aluminum, steel, galvanized steel or yellow metals.
- Advantageously, a lubricant composition according to the invention, formed mainly of water, has little toxicological impact notably with respect to persons using this lubricant.
- Advantageously, although water is the majority solvent of an aqueous lubricant according to the invention, the treated surface is correctly lubricated.
- Furthermore, the presence of a large proportion of water makes it easier to clean the surface to be treated, notably by simply passing over or rinsing with water.
- An aqueous lubricant composition according to the invention may also find an advantageous application for the lubrication of an electric or hybrid vehicle propulsion system, and more particularly of the motor, the power electrics, the transmission and/or the battery.
- An aqueous composition according to the invention may thus be used both as a cooling fluid and as a lubricant, for example in a motorization system of an electric or hybrid vehicle.
- Advantageously, a composition according to the invention simultaneously affords good properties in terms of cooling and lubrication of the parts of the motorization system of an electric or hybrid vehicle.
- More particularly, a composition according to the invention makes it possible to cool and lubricate an electric motor of an electric or hybrid vehicle. It notably proves to be effective for cooling the power electronics and/or the rotor and/or the stator of an electric motor. It can also ensure lubrication of the rolling bearings located between the rotor and the stator of an electric motor of an electric or hybrid vehicle.
- Advantageously, a composition according to the invention makes it possible to ensure lubrication of the transmission, when it is present, in particular the gearbox, of an electric or hybrid vehicle. Also, a composition according to the invention advantageously makes it possible to effectively cool the battery present in an electric or hybrid vehicle.
- Thus, advantageously, it is possible, for example, by using a single composition according to the invention, to ensure both the cooling of the battery and the lubrication of the transmission, in particular the gearbox, in an electric or hybrid vehicle.
- According to the invention, the particular, advantageous or preferred features of the composition according to the invention make it possible to define uses according to the invention that are also particular, advantageous or preferred.
- The invention will now be described by means of the examples that follow, which are, needless to say, given as nonlimiting illustrations of the invention.
- The coefficient of friction of the lubricant compositions and the ball wear in μm3 in diameter of the ball footprint are measured using a reciprocating ball-on-flat tribometer. For each test, the ball and/or flat surface mechanical parts are changed. The properties of the parts used are shown in Table 1 below.
-
TABLE 1 Properties of the mechanical parts used in this study SiC AISI52100 SiC Si3N4 AISI52100 ball steel ball flat flat steel flat Diameter [mm] 10 12.7 — — — Surface roughness 31.5 19.7 8.3 6.7 4.0 (Ra) [nm] - The test conditions on the reciprocating ball-on-flat tribometer are:
-
- Temperature: 25° C.;
- Frequency: 0.75 Hz;
- Maximum contact pressure: 580 MPa;
- Track length: 2 mm;
- Time: 1.1 h;
- Volume of the lubricant composition: about 50 pt.
- A reference composition (I0), comprising only glycerol and water, and a composition in accordance with the invention (I1), corresponding to composition I0 supplemented with hypericin, were prepared by simply mixing, at room temperature, of the components indicated in Table 2. The percentages are expressed on a mass basis relative to the total mass of the composition.
-
TABLE 2 Composition I0 I1 Deionized water [%] 50 49.82 Glycerol [%] 50 49.82 Hypericin [%] 0 0.36 - Evaluation of the Properties of the Lubricant Compositions
- The tribological properties of the aqueous compositions thus prepared were evaluated in accordance with the measurement protocol detailed above.
- The results are collated in Tables 3 and 4 below.
-
TABLE 3 Coefficient of friction measured for each ball- on-flat configuration and for each composition Composition I0 I1 SiC ball - Si3N4 flat 0.081 0.071 Steel ball - Steel flat 0.180 0.100 Steel ball - Si3N4 flat 0.020 0.010 Steel ball - SiC flat 0.100 0.010 -
TABLE 4 Ball footprint diameter (in μm3) measured for each ball-on-flat configuration and for each composition Composition I0 I1 SiC ball - Si3N4 flat 1.80 × 104 1.50 × 104 Steel ball - Steel flat 2.90 × 104 0.40 × 104 Steel ball - Si3N4 flat 1.35 × 104 0.80 × 104 Steel ball - SiC flat 0.30 × 104 0.20 × 104 - It is clear from these examples that the composition in accordance with the invention (I1) has reduced wear and a reduced coefficient of friction compared to the reference composition (I0), which does not contain hypericin.
Claims (11)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2006497A FR3111640B1 (en) | 2020-06-22 | 2020-06-22 | Aqueous composition for the lubrication of mechanical systems |
FRFR2006497 | 2020-06-22 | ||
PCT/EP2021/066814 WO2021259851A1 (en) | 2020-06-22 | 2021-06-21 | Aqueous composition for lubricating mechanical systems |
Publications (1)
Publication Number | Publication Date |
---|---|
US20240060001A1 true US20240060001A1 (en) | 2024-02-22 |
Family
ID=72709524
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/012,394 Pending US20240060001A1 (en) | 2020-06-22 | 2021-06-21 | Aqueous composition for lubricating mechanical systems |
Country Status (5)
Country | Link |
---|---|
US (1) | US20240060001A1 (en) |
EP (1) | EP4168517A1 (en) |
CN (1) | CN116348577A (en) |
FR (1) | FR3111640B1 (en) |
WO (1) | WO2021259851A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3134814A1 (en) | 2022-04-20 | 2023-10-27 | Totalenergies Onetech | Aqueous lubricating composition comprising a gallic acid ester |
FR3134813A1 (en) | 2022-04-20 | 2023-10-27 | Totalenergies Onetech | Aqueous lubricating composition comprising an ascorbic acid ester |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8000569A (en) * | 1979-04-10 | 1980-10-14 | Pennwalt Corp | LUBRICANT FOR USE IN DEFORMING, AND METHOD FOR DEFORMING FERRO AND NON-FERROUS METALS USING THIS LUBRICANT. |
IL92315A (en) | 1989-11-15 | 1996-12-05 | Yeda Res & Dev | Preparation of hypericin from emodin anthrone |
US7195783B2 (en) | 1999-07-09 | 2007-03-27 | Fx Life Sciences International Gmbh | Hypericin and hypericum extract: specific T-type calcium channel blocker, and their use as T-type calcium channel targeted therapeutics |
BRPI0817538B1 (en) * | 2007-10-02 | 2018-02-06 | Kuhs Gmbh | COSMETIC OR PHARMACEUTICAL COMPOSITION TO BE APPLIED TOPICALLY |
DE102009039626A1 (en) | 2009-09-01 | 2011-03-03 | KLüBER LUBRICATION MüNCHEN KG | Water-based lubricants |
BR102015016064B1 (en) * | 2015-07-02 | 2020-09-24 | Universidade De São Paulo - Usp | ORAL COSMETIC COMPOSITION BASED ON HYPERICIN AND USE OF THE SAME |
CN105168012A (en) * | 2015-08-04 | 2015-12-23 | 苏州泽达兴邦医药科技有限公司 | Compound medicinal toothpaste and making method |
WO2017151111A1 (en) | 2016-03-01 | 2017-09-08 | Soligenix, Inc. | Systems and methods for producing synthetic hypericin |
CN109069563A (en) * | 2016-04-21 | 2018-12-21 | 化工产品开发公司Seppic | For treating and/or preventing Madagascar's Ha Lunjiana leaf extract of acne |
-
2020
- 2020-06-22 FR FR2006497A patent/FR3111640B1/en active Active
-
2021
- 2021-06-21 CN CN202180051524.1A patent/CN116348577A/en active Pending
- 2021-06-21 WO PCT/EP2021/066814 patent/WO2021259851A1/en unknown
- 2021-06-21 US US18/012,394 patent/US20240060001A1/en active Pending
- 2021-06-21 EP EP21733141.2A patent/EP4168517A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
FR3111640A1 (en) | 2021-12-24 |
EP4168517A1 (en) | 2023-04-26 |
FR3111640B1 (en) | 2022-07-22 |
CN116348577A (en) | 2023-06-27 |
WO2021259851A1 (en) | 2021-12-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20230250359A1 (en) | Aqueous composition for lubricating motorization systems | |
US20240060001A1 (en) | Aqueous composition for lubricating mechanical systems | |
US7851420B2 (en) | Corrosion protection agent for functional fluids water-miscible concentrate and use thereof | |
EP2928992B1 (en) | Additive compositions and industrial process fluids | |
US8969270B2 (en) | Water-soluble metal working fluid, and coolant for metal working | |
US5492642A (en) | Top of rail lubricating method and composition | |
EP2930229B1 (en) | Boron-free corrosion inhibitors for metalworking fluids | |
US20180291306A1 (en) | Metal working fluid | |
US5415896A (en) | Railroad wheel flange lubricating method | |
US8338345B2 (en) | Water-based metalworking fluid | |
KR20170005742A (en) | Boron-free corrosion inhibitors for metalworking fluids | |
US20150011445A1 (en) | Corrosion-protection system for treating metal surfaces | |
WO2023275300A1 (en) | Aqueous lubricant composition for metalworking | |
FR3144158A1 (en) | Aqueous lubricating composition | |
EP4112704A1 (en) | Aqueous lubricating composition comprising mos2 nanosheet | |
WO2023203000A1 (en) | Aqueous lubricant composition comprising a gallic acid ester | |
FR3134815A1 (en) | Aqueous composition for the lubrication and/or cooling of a propulsion system of an electric or hybrid vehicle | |
WO2023202997A1 (en) | Aqueous lubricant composition comprising ascorbic acid ester | |
FR3144156A1 (en) | Lubricating composition for generating molybdenum disulfide in situ during lubrication | |
CN117916347A (en) | Aqueous lubricating composition for metal working | |
EP4112705A1 (en) | Aqueous lubricating composition comprising mos2 nanosheet | |
JP2007231384A (en) | Anticorrosive for nonferrous metal and water soluble cutting-grinding fluid composition for nonferrous metal | |
CA2431190A1 (en) | Sulfated dicarboxylic acids for lubrication, emulsification, and corrosion inhibition | |
JPH05263094A (en) | Water/glycol hydraulic fluid |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: TOTALENERGIES ONETECH, FRANCE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TOTALENERGIES MARKETING SERVICES;REEL/FRAME:063198/0594 Effective date: 20220426 |
|
AS | Assignment |
Owner name: ECOLE CENTRALE DE LYON (ECL), FRANCE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DE BARROS BOUCHET, MARIA ISABEL;LONG, YUN;MARTIN, JEAN-MICHEL;AND OTHERS;SIGNING DATES FROM 20230220 TO 20230308;REEL/FRAME:063243/0427 Owner name: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), FRANCE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DE BARROS BOUCHET, MARIA ISABEL;LONG, YUN;MARTIN, JEAN-MICHEL;AND OTHERS;SIGNING DATES FROM 20230220 TO 20230308;REEL/FRAME:063243/0427 Owner name: TOTALENERGIES ONETECH, FRANCE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DE BARROS BOUCHET, MARIA ISABEL;LONG, YUN;MARTIN, JEAN-MICHEL;AND OTHERS;SIGNING DATES FROM 20230220 TO 20230308;REEL/FRAME:063243/0427 |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |