EP1707617B1 - Composition d'huile de lubrification biodébradable - Google Patents
Composition d'huile de lubrification biodébradable Download PDFInfo
- Publication number
- EP1707617B1 EP1707617B1 EP05709443.5A EP05709443A EP1707617B1 EP 1707617 B1 EP1707617 B1 EP 1707617B1 EP 05709443 A EP05709443 A EP 05709443A EP 1707617 B1 EP1707617 B1 EP 1707617B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lubricating oil
- oil composition
- ester
- test
- mass
- 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.)
- Not-in-force
Links
- 239000000203 mixture Substances 0.000 title claims description 76
- 239000010687 lubricating oil Substances 0.000 title claims description 72
- -1 aliphatic monocarboxylic acid Chemical class 0.000 claims description 49
- 238000012360 testing method Methods 0.000 claims description 44
- 150000002148 esters Chemical class 0.000 claims description 43
- 229920005862 polyol Polymers 0.000 claims description 25
- 125000004432 carbon atom Chemical group C* 0.000 claims description 23
- 239000002199 base oil Substances 0.000 claims description 22
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- 150000003077 polyols Chemical class 0.000 claims description 22
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 20
- 239000011575 calcium Substances 0.000 claims description 18
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 16
- 239000002530 phenolic antioxidant Substances 0.000 claims description 14
- 229910052791 calcium Inorganic materials 0.000 claims description 12
- 238000010998 test method Methods 0.000 claims description 12
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 10
- 241000276569 Oryzias latipes Species 0.000 claims description 10
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 claims description 9
- 229920006395 saturated elastomer Polymers 0.000 claims description 9
- 125000001931 aliphatic group Chemical group 0.000 claims description 8
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 claims description 8
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 7
- 238000006065 biodegradation reaction Methods 0.000 claims description 7
- 239000004615 ingredient Substances 0.000 claims description 6
- 231100000215 acute (single dose) toxicity testing Toxicity 0.000 claims description 4
- 238000011047 acute toxicity test Methods 0.000 claims description 4
- KXZLHMICGMACLR-UHFFFAOYSA-N 2-(hydroxymethyl)-2-pentylpropane-1,3-diol Chemical compound CCCCCC(CO)(CO)CO KXZLHMICGMACLR-UHFFFAOYSA-N 0.000 claims description 3
- SZSSMFVYZRQGIM-UHFFFAOYSA-N 2-(hydroxymethyl)-2-propylpropane-1,3-diol Chemical compound CCCC(CO)(CO)CO SZSSMFVYZRQGIM-UHFFFAOYSA-N 0.000 claims description 3
- PKKMTXYTMIUYND-UHFFFAOYSA-N 2-[[3-hydroxy-2-(hydroxymethyl)-2-methylpropoxy]methyl]-2-methylpropane-1,3-diol Chemical compound OCC(C)(CO)COCC(C)(CO)CO PKKMTXYTMIUYND-UHFFFAOYSA-N 0.000 claims description 3
- AUYHMZGBIIEMRK-UHFFFAOYSA-N 2-[[3-hydroxy-2-[[3-hydroxy-2-(hydroxymethyl)-2-methylpropoxy]methyl]-2-methylpropoxy]methyl]-2-methylpropane-1,3-diol Chemical compound OCC(C)(CO)COCC(C)(CO)COCC(C)(CO)CO AUYHMZGBIIEMRK-UHFFFAOYSA-N 0.000 claims description 3
- HJIYDQCBJVTQAO-UHFFFAOYSA-N 2-butyl-2-(hydroxymethyl)propane-1,3-diol Chemical compound CCCCC(CO)(CO)CO HJIYDQCBJVTQAO-UHFFFAOYSA-N 0.000 claims description 3
- VNAWKNVDKFZFSU-UHFFFAOYSA-N 2-ethyl-2-methylpropane-1,3-diol Chemical compound CCC(C)(CO)CO VNAWKNVDKFZFSU-UHFFFAOYSA-N 0.000 claims description 3
- QERPRBXFYXTKDD-UHFFFAOYSA-N 2-hexyl-2-(hydroxymethyl)propane-1,3-diol Chemical compound CCCCCCC(CO)(CO)CO QERPRBXFYXTKDD-UHFFFAOYSA-N 0.000 claims description 3
- GRFUBKQMUNOERA-UHFFFAOYSA-N 3-(3-hydroxy-2,2-dimethylpropoxy)-2,2-dimethylpropan-1-ol Chemical compound OCC(C)(C)COCC(C)(C)CO GRFUBKQMUNOERA-UHFFFAOYSA-N 0.000 claims description 3
- UVCCXLWIORYUKI-UHFFFAOYSA-N 3-[3-(3-hydroxy-2,2-dimethylpropoxy)-2,2-dimethylpropoxy]-2,2-dimethylpropan-1-ol Chemical compound OCC(C)(C)COCC(C)(C)COCC(C)(C)CO UVCCXLWIORYUKI-UHFFFAOYSA-N 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims description 3
- 238000006731 degradation reaction Methods 0.000 claims description 3
- 230000000813 microbial effect Effects 0.000 claims description 3
- XRVCFZPJAHWYTB-UHFFFAOYSA-N prenderol Chemical compound CCC(CC)(CO)CO XRVCFZPJAHWYTB-UHFFFAOYSA-N 0.000 claims description 3
- 229950006800 prenderol Drugs 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 claims description 3
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 1
- 239000003921 oil Substances 0.000 description 25
- 235000019198 oils Nutrition 0.000 description 25
- 230000001590 oxidative effect Effects 0.000 description 14
- 229910052751 metal Inorganic materials 0.000 description 12
- 239000002184 metal Substances 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 239000000654 additive Substances 0.000 description 9
- 239000012530 fluid Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000003566 sealing material Substances 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 7
- 239000003963 antioxidant agent Substances 0.000 description 6
- 239000012964 benzotriazole Substances 0.000 description 6
- 231100000636 lethal dose Toxicity 0.000 description 6
- YVKVCTLHBOMQDA-GNOQXXQHSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;(z)-octadec-9-enoic acid Chemical compound CCC(CO)(CO)CO.CCCCCCCC\C=C/CCCCCCCC(O)=O.CCCCCCCC\C=C/CCCCCCCC(O)=O.CCCCCCCC\C=C/CCCCCCCC(O)=O YVKVCTLHBOMQDA-GNOQXXQHSA-N 0.000 description 5
- 239000002518 antifoaming agent Substances 0.000 description 5
- 230000003078 antioxidant effect Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 150000002763 monocarboxylic acids Chemical class 0.000 description 5
- 229940117969 neopentyl glycol Drugs 0.000 description 5
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- WMYJOZQKDZZHAC-UHFFFAOYSA-H trizinc;dioxido-sulfanylidene-sulfido-$l^{5}-phosphane Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S WMYJOZQKDZZHAC-UHFFFAOYSA-H 0.000 description 5
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 238000005536 corrosion prevention Methods 0.000 description 4
- 239000002270 dispersing agent Substances 0.000 description 4
- ZQPPMHVWECSIRJ-MDZDMXLPSA-N elaidic acid Chemical compound CCCCCCCC\C=C\CCCCCCCC(O)=O ZQPPMHVWECSIRJ-MDZDMXLPSA-N 0.000 description 4
- 238000005886 esterification reaction Methods 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 4
- 239000006078 metal deactivator Substances 0.000 description 4
- 239000002480 mineral oil Substances 0.000 description 4
- 235000010446 mineral oil Nutrition 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 3
- XDOFQFKRPWOURC-UHFFFAOYSA-N 16-methylheptadecanoic acid Chemical compound CC(C)CCCCCCCCCCCCCCC(O)=O XDOFQFKRPWOURC-UHFFFAOYSA-N 0.000 description 3
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 3
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 3
- 239000005642 Oleic acid Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 150000001335 aliphatic alkanes Chemical class 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000032050 esterification Effects 0.000 description 3
- 150000002430 hydrocarbons Chemical group 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 235000015112 vegetable and seed oil Nutrition 0.000 description 3
- 239000008158 vegetable oil Substances 0.000 description 3
- SXJBHJCKWQIWHA-UHFFFAOYSA-N 2-ethyl-2,3,3-trimethylbutanoic acid Chemical compound CCC(C)(C(O)=O)C(C)(C)C SXJBHJCKWQIWHA-UHFFFAOYSA-N 0.000 description 2
- DPUOLQHDNGRHBS-UHFFFAOYSA-N Brassidinsaeure Natural products CCCCCCCCC=CCCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 235000019484 Rapeseed oil Nutrition 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 125000003342 alkenyl group Chemical group 0.000 description 2
- 150000005215 alkyl ethers Chemical class 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 239000013556 antirust agent Substances 0.000 description 2
- 238000013475 authorization Methods 0.000 description 2
- 239000013065 commercial product Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003925 fat Substances 0.000 description 2
- 235000019197 fats Nutrition 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- KEMQGTRYUADPNZ-UHFFFAOYSA-N heptadecanoic acid Chemical compound CCCCCCCCCCCCCCCCC(O)=O KEMQGTRYUADPNZ-UHFFFAOYSA-N 0.000 description 2
- MNWFXJYAOYHMED-UHFFFAOYSA-N heptanoic acid Chemical compound CCCCCCC(O)=O MNWFXJYAOYHMED-UHFFFAOYSA-N 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- YYVJAABUJYRQJO-UHFFFAOYSA-N isomyristic acid Chemical compound CC(C)CCCCCCCCCCC(O)=O YYVJAABUJYRQJO-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005555 metalworking Methods 0.000 description 2
- KHYKFSXXGRUKRE-UHFFFAOYSA-J molybdenum(4+) tetracarbamodithioate Chemical compound C(N)([S-])=S.[Mo+4].C(N)([S-])=S.C(N)([S-])=S.C(N)([S-])=S KHYKFSXXGRUKRE-UHFFFAOYSA-J 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 2
- ISYWECDDZWTKFF-UHFFFAOYSA-N nonadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCCC(O)=O ISYWECDDZWTKFF-UHFFFAOYSA-N 0.000 description 2
- FBUKVWPVBMHYJY-UHFFFAOYSA-N nonanoic acid Chemical compound CCCCCCCCC(O)=O FBUKVWPVBMHYJY-UHFFFAOYSA-N 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- 229940049964 oleate Drugs 0.000 description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229920001515 polyalkylene glycol Polymers 0.000 description 2
- 239000005077 polysulfide Substances 0.000 description 2
- 229920001021 polysulfide Polymers 0.000 description 2
- 150000008117 polysulfides Polymers 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- SZHOJFHSIKHZHA-UHFFFAOYSA-N tridecanoic acid Chemical compound CCCCCCCCCCCCC(O)=O SZHOJFHSIKHZHA-UHFFFAOYSA-N 0.000 description 2
- ZDPHROOEEOARMN-UHFFFAOYSA-N undecanoic acid Chemical compound CCCCCCCCCCC(O)=O ZDPHROOEEOARMN-UHFFFAOYSA-N 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- MBBWTVUFIXOUBE-UHFFFAOYSA-L zinc;dicarbamodithioate Chemical compound [Zn+2].NC([S-])=S.NC([S-])=S MBBWTVUFIXOUBE-UHFFFAOYSA-L 0.000 description 2
- OBETXYAYXDNJHR-SSDOTTSWSA-M (2r)-2-ethylhexanoate Chemical compound CCCC[C@@H](CC)C([O-])=O OBETXYAYXDNJHR-SSDOTTSWSA-M 0.000 description 1
- FRPZMMHWLSIFAZ-UHFFFAOYSA-N 10-undecenoic acid Chemical compound OC(=O)CCCCCCCCC=C FRPZMMHWLSIFAZ-UHFFFAOYSA-N 0.000 description 1
- ZONJATNKKGGVSU-UHFFFAOYSA-N 14-methylpentadecanoic acid Chemical compound CC(C)CCCCCCCCCCCCC(O)=O ZONJATNKKGGVSU-UHFFFAOYSA-N 0.000 description 1
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 1
- NPMHELYJLOUPIZ-UHFFFAOYSA-N 2,2,3,4-tetramethylpentanoic acid Chemical compound CC(C)C(C)C(C)(C)C(O)=O NPMHELYJLOUPIZ-UHFFFAOYSA-N 0.000 description 1
- BTGGRPUPMPLZNT-PGEUSFDPSA-N 2,2-bis[[(z)-octadec-9-enoyl]oxymethyl]butyl (z)-octadec-9-enoate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(CC)(COC(=O)CCCCCCC\C=C/CCCCCCCC)COC(=O)CCCCCCC\C=C/CCCCCCCC BTGGRPUPMPLZNT-PGEUSFDPSA-N 0.000 description 1
- VUAXHMVRKOTJKP-UHFFFAOYSA-N 2,2-dimethylbutyric acid Chemical compound CCC(C)(C)C(O)=O VUAXHMVRKOTJKP-UHFFFAOYSA-N 0.000 description 1
- IKNDGHRNXGEHTO-UHFFFAOYSA-N 2,2-dimethyloctanoic acid Chemical compound CCCCCCC(C)(C)C(O)=O IKNDGHRNXGEHTO-UHFFFAOYSA-N 0.000 description 1
- OWEMTCOXFULTNW-UHFFFAOYSA-N 2,3-dimethyl-2-propan-2-ylbutanoic acid Chemical compound CC(C)C(C)(C(C)C)C(O)=O OWEMTCOXFULTNW-UHFFFAOYSA-N 0.000 description 1
- OPLCSTZDXXUYDU-UHFFFAOYSA-N 2,4-dimethyl-6-tert-butylphenol Chemical compound CC1=CC(C)=C(O)C(C(C)(C)C)=C1 OPLCSTZDXXUYDU-UHFFFAOYSA-N 0.000 description 1
- DKCPKDPYUFEZCP-UHFFFAOYSA-N 2,6-di-tert-butylphenol Chemical compound CC(C)(C)C1=CC=CC(C(C)(C)C)=C1O DKCPKDPYUFEZCP-UHFFFAOYSA-N 0.000 description 1
- UDFARPRXWMDFQU-UHFFFAOYSA-N 2,6-ditert-butyl-4-[(3,5-ditert-butyl-4-hydroxyphenyl)methylsulfanylmethyl]phenol Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CSCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 UDFARPRXWMDFQU-UHFFFAOYSA-N 0.000 description 1
- QHPKIUDQDCWRKO-UHFFFAOYSA-N 2,6-ditert-butyl-4-[2-(3,5-ditert-butyl-4-hydroxyphenyl)propan-2-yl]phenol Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(C(C)(C)C=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 QHPKIUDQDCWRKO-UHFFFAOYSA-N 0.000 description 1
- DSKYSDCYIODJPC-UHFFFAOYSA-N 2-butyl-2-ethylpropane-1,3-diol Chemical compound CCCCC(CC)(CO)CO DSKYSDCYIODJPC-UHFFFAOYSA-N 0.000 description 1
- AKNMPWVTPUHKCG-UHFFFAOYSA-N 2-cyclohexyl-6-[(3-cyclohexyl-2-hydroxy-5-methylphenyl)methyl]-4-methylphenol Chemical compound OC=1C(C2CCCCC2)=CC(C)=CC=1CC(C=1O)=CC(C)=CC=1C1CCCCC1 AKNMPWVTPUHKCG-UHFFFAOYSA-N 0.000 description 1
- QFWGJUQOWNHFKT-UHFFFAOYSA-N 2-tert-butyl-2,5,5-trimethylhexanoic acid Chemical compound CC(C)(C)CCC(C)(C(O)=O)C(C)(C)C QFWGJUQOWNHFKT-UHFFFAOYSA-N 0.000 description 1
- YFHKLSPMRRWLKI-UHFFFAOYSA-N 2-tert-butyl-4-(3-tert-butyl-4-hydroxy-5-methylphenyl)sulfanyl-6-methylphenol Chemical compound CC(C)(C)C1=C(O)C(C)=CC(SC=2C=C(C(O)=C(C)C=2)C(C)(C)C)=C1 YFHKLSPMRRWLKI-UHFFFAOYSA-N 0.000 description 1
- HXIQYSLFEXIOAV-UHFFFAOYSA-N 2-tert-butyl-4-(5-tert-butyl-4-hydroxy-2-methylphenyl)sulfanyl-5-methylphenol Chemical compound CC1=CC(O)=C(C(C)(C)C)C=C1SC1=CC(C(C)(C)C)=C(O)C=C1C HXIQYSLFEXIOAV-UHFFFAOYSA-N 0.000 description 1
- BGWNOSDEHSHFFI-UHFFFAOYSA-N 2-tert-butyl-4-[(3-tert-butyl-4-hydroxy-5-methylphenyl)methylsulfanylmethyl]-6-methylphenol Chemical compound CC(C)(C)C1=C(O)C(C)=CC(CSCC=2C=C(C(O)=C(C)C=2)C(C)(C)C)=C1 BGWNOSDEHSHFFI-UHFFFAOYSA-N 0.000 description 1
- PFANXOISJYKQRP-UHFFFAOYSA-N 2-tert-butyl-4-[1-(5-tert-butyl-4-hydroxy-2-methylphenyl)butyl]-5-methylphenol Chemical compound C=1C(C(C)(C)C)=C(O)C=C(C)C=1C(CCC)C1=CC(C(C)(C)C)=C(O)C=C1C PFANXOISJYKQRP-UHFFFAOYSA-N 0.000 description 1
- YGBSNORLROWMAY-UHFFFAOYSA-N 2-tert-butyl-6-(3,3-dimethylbutyl)phenol Chemical compound CC(C)(C)CCC1=CC=CC(C(C)(C)C)=C1O YGBSNORLROWMAY-UHFFFAOYSA-N 0.000 description 1
- MQWCQFCZUNBTCM-UHFFFAOYSA-N 2-tert-butyl-6-(3-tert-butyl-2-hydroxy-5-methylphenyl)sulfanyl-4-methylphenol Chemical compound CC(C)(C)C1=CC(C)=CC(SC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O MQWCQFCZUNBTCM-UHFFFAOYSA-N 0.000 description 1
- GPNYZBKIGXGYNU-UHFFFAOYSA-N 2-tert-butyl-6-[(3-tert-butyl-5-ethyl-2-hydroxyphenyl)methyl]-4-ethylphenol Chemical compound CC(C)(C)C1=CC(CC)=CC(CC=2C(=C(C=C(CC)C=2)C(C)(C)C)O)=C1O GPNYZBKIGXGYNU-UHFFFAOYSA-N 0.000 description 1
- BKZXZGWHTRCFPX-UHFFFAOYSA-N 2-tert-butyl-6-methylphenol Chemical compound CC1=CC=CC(C(C)(C)C)=C1O BKZXZGWHTRCFPX-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
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- C10M135/10—Sulfonic acids or derivatives thereof
-
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/04—Hydroxy compounds
- C10M129/10—Hydroxy compounds having hydroxy groups bound to a carbon atom of a six-membered aromatic ring
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
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- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/38—Heterocyclic nitrogen compounds
- C10M133/44—Five-membered ring containing nitrogen and carbon only
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
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- C10M2207/0225—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups used as base material
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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- C10M2207/289—Partial esters containing free hydroxy groups
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
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- C10M2207/2895—Partial esters containing free hydroxy groups used as base material
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
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- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
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- C10M2219/046—Overbasedsulfonic acid salts
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- 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
- C10N2010/00—Metal present as such or in compounds
- C10N2010/04—Groups 2 or 12
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- 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
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- C10N2020/01—Physico-chemical properties
- C10N2020/081—Biodegradable compounds
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- 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
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- C10N2030/02—Pour-point; Viscosity index
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- C10N2040/042—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for automatic transmissions
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- 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
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- C10N2040/044—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for manual transmissions
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- 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
- C10N2040/08—Hydraulic fluids, e.g. brake-fluids
-
- 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
- C10N2040/20—Metal working
- C10N2040/22—Metal working with essential removal of material, e.g. cutting, grinding or drilling
-
- 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 a biodegradable lubricating oil composition. More specifically, it relates to a synthetic ester-based biodegradable lubricating oil composition which has excellent biodegradability, a high viscosity index, a low pour point, a high flash point, being satisfactory with lubricity, oxidative stability, property of preventing the corrosion of iron and non-ferrous metals, and suitability for use with sealing materials.
- Vegetable oils such as rapeseed oil, synthetic esters and polyalkyleneglycols have been used as a biodegradable base oil.
- vegetable oils have a problem of thermal or oxidative instability as well as unstable supply despite low cost
- polyalkyleneglycols have a problem of a poor suitability for use with sealing materials despite low cost and good thermal stability. Therefore, although synthetic esters are becoming more popular as biodegradable lubricating oils in Japan, they still have a substantial weakness against a mineral oil-based lubricating oil in terms of the cost and oxidative stability.
- a first component is a natural or synthetic oil component.
- One of the optional choices for such a natural or synthetic oil component is an ester compound containing methylol groups (column 8, lines 42 to 47).
- the composition contains additives, such as an antioxidant. Numerous phenolic antioxidants are mentioned, but other types of antioxidants are possible as well.
- the present invention was completed under these circumstances with an object to provide a biodegradable lubricating oil composition which has excellent biodegradability, a high viscosity index, a low pour point, a high flash point, being satisfactory with lubricity, oxidative stability, property of preventing the corrosion of iron and non-ferrous metals, and suitability for use with sealing materials.
- the present inventor studied intensively in order to develop a biodegradable lubricating oil composition which meets the aforementioned preferable properties, and found that a lubricating oil composition having a certain value or more of the biodegradability that is determined according to the OECD Test Guideline 301C method satisfies the purpose of the study, wherein the lubricating oil composition is composed of a synthetic ester base oil comprising mainly an ester composed of an aliphatic hindered polyol having a specific structure and an aliphatic monocarboxylic acid, to which a specific additive is admixed in a predetermined ratio.
- the present invention has been accomplished based on the aforementioned findings. That is, the present invention provides:
- the synthetic ester base oil used as component (A) of the present invention comprises at least 50 mass% hindered ester of an aliphatic monocarboxylic acid with an aliphatic hindered polyol which has one or more quaternary carbon atoms per molecule and in which at least one of the quaternary carbon atoms has one to four methylol groups bonded thereto.
- R 1 and R 2 independently represent a hydrocarbon group having 1 to 6 carbon atoms or a methylol group, and n is an integer of 0 to 4.
- hydrocarbon group having 1 to 6 carbon atoms among R 1 and R 2 in general formula (I) a linear or branched alkyl or alkenyl group is preferable, and especially, an alkyl group is preferable.
- neopentyl glycol 2-ethyl-2-methyl-1,3-propanediol; 2,2-diethyl-1,3-propanediol; trimethylolethane; trimethylolpropane; trimethylolbutane; trimethylolpentane; trimethylolhexane; trimethylolheptane; pentaerythritol; 2,2,6,6-tetramethyl-4-oxa-1,7-heptanediol; 2,2,6,6,10,10-hexamethyl-4,8-dioxa-1,11-undecanediol; 2,2,6,6,10,10,14,14-octamethyl-4,8,12-trioxa-1,15-pentadecanediol; 2,6-dihydroxymethyl-2,6-dimethyl-4-oxa-1,7-heptanediol; 2,6, 10-trihydroxymethyl-2,6, 10-
- the hindered polyols may be used singly or as a mixture of 2 or more thereof in the esterification.
- a preferable number of n is 0 to 2.
- Preferred hindered polyols are trimethylolpropane, neopentyl glycol, pentaerythritol and dehydrated condensates thereof, wherein preferable dehydrated condensates are bimolecular or trimolecular condensates.
- the above-described hindered polyols can be synthesized according to the conventional method.
- the dehydrated condensates of the hindered polyols can be synthesized by dehydration condensation of the hindered polyols in the presence of a catalyst at about 180°C by heating the hindered polyols at a temperature above the melting point and dispersing them in a solvent.
- aliphatic monocarboxylic acids used in the esterification of the aliphatic hindered polyols mentioned above saturated or unsaturated monocarboxylic acids having 6 to 22 carbon atoms are used preferably.
- the acyl group of the monocarboxylic acids may be linear or branched.
- aliphatic monocarboxylic acids examples include linear saturated monocarboxylic acids such as caproic acid, enanthic acid, caprylic acid, pelargonic acid, capric acid, undecanoic acid, lauric acid, tridecanoic acid, myristic acid, pentadecanoic acid, palmitic acid, heptadecanoic acid, stearic acid, nonadecanoic acid, arachic acid and behenic acid, linear unsaturated monocarboxylic acids such as undecenoic acid, oleic acid, elaidic acid, cetoleic acid, erucic acid, brassidic acid, linoleic acid and linolenic acid, branched saturated monocarboxylic acids such as isomyristic acid, isopalmitic acid, isostearic acid, 2,2-dimethylbutanoic acid, 2,2-dimethylpentanoic acid, 2,2-dimethyloctanoic acid
- the hindered ester synthesized by esterification reaction of the above-mentioned hindered polyol with the aliphatic monocarboxylic acid may be a fully-esterified or partially-esterified compound.
- a preferable hindered ester is the fully-esterified compound.
- the hindered esters may be used singly or as a mixture of two or more thereof in the biodegradable lubricating oil composition of the present invention. Further, the amount of the hindered ester in the synthetic ester base oil is 50 mass% or more, preferably 70 mass% or more, and furthermore preferably 80 mass% or more in order to satisfy the predetermined properties of the biodegradable lubricating oil composition described below.
- Kinematic viscosity of the synthetic ester base oil used as the component (A) in the lubricating oil composition depends on the purpose of use of the lubricating oil composition, and is approximately in the range from 10 to 200 mm 2 /s at 40°C in general, preferably in the range from 10 to 100 mm 2 /s, and more preferably in the range from 15 to 80 mm 2 /s in the case of hydraulic fluid application.
- An acid value of the synthetic ester base oil is preferably 3 mg KOH/g or less and particularly preferably 1 mg KOH/g or less in terms of prevention of corrosion of machinery. Further, there is no particular limitation for a hydroxyl value, but it is preferably 50 mg KOH/g or less and particularly preferably 20 mg KOH/g or less from a viewpoint of lubricity.
- phenolic antioxidant as component (a) of the ingredient (B) is not particularly limited, and phenolic antioxidant known in the art can be used with suitable selection.
- phenolic antioxidant include 4,4'-methylenebis(2,6-di-t-butylphenol); 4,4'-bis(2,6-di-t-butylphenol); 4,4'-bis(2-methyl-6-t-butylphenol); 2,2'-methylenebis(4-ethyl-6-t-butylphenol); 2,2'-methylenebis(4-methyl-6-t-butylphenol); 4,4'-butylidenebis(3-methyl-6-t-butylphenol); 4,4'-isopropylidenebis(2,6-di-t-butylphenol); 2,2'-methylenebis(4-methyl-6-t-nonylphenol); 2,2'-isobutylidenebis(4,6-dimethylpenol); 2,2'-m
- these phenolic antioxidants may be used singly or in a combination of two or more thereof.
- the aforementioned hindered ester used for the synthetic ester base oil has satisfactory oxidative stability by itself, and the oxidative stability of the lubricating oil composition can further be improved by admixing such a phenolic antioxidant, which also results in the increase in thermal stability.
- the amount of the phenolic antioxidant added is in the range from 0.1 to 5.0 mass% based on the total amount of the present composition. When the amount of the phenolic antioxidant is in the range mentioned above, the effect of improvement in the oxidative stability is exhibited and the balance between cost and effectiveness becomes excellent.
- the preferable amount of the phenolic antioxidant admixed is in the range from 0.5 to 3.0 mass%.
- the phenolic antioxidants are used in the present invention from a viewpoint of impact on ecosystems.
- the low base number calcium sulfonate as the component (b) in the ingredient (B) is added to give anti-rust effect to the lubricating oil composition and has also detergency and dispersion function.
- the calcium sulfonate is a calcium salt of a sulfonated alkyl-substituted aromatic compound.
- the calcium sulfonate having a low base number such that the total base number (TBN) is in the range from 0 to 100 mg KOH/g (preferably in the range from 0 to 50 mg KOH/g) is used in the present invention.
- the low base number calcium sulfonates may be used singly or in a combination of two or more thereof.
- the amount of the calcium sulfonate added is in the range from 0.01 to 2.0 mass% based on the total amount of the composition.
- the amount of the low base number calcium sulfonate is preferably in the range from 0.05 to 1.0 mass%.
- the base oil itself has a level of lubricity equivalent to that of a conventional mineral oil-based antiwear hydraulic fluid, and in order to further improve the lubricity, an extreme-pressure agent and/or an antiwear agent may be added.
- sulfur-based or phosphorus-based extreme-pressure agents can be used.
- the sulfur-based extreme-pressure agent are sulfurized fats and oils, sulfurized fatty acids, sulfurized esters, polysulfides, sulfurized olefins, thiocarbamates, thioterpenes, dialkylthiodipropionates and the like.
- sulfurized fats and oils, polysulfides and sulfurized olefins are preferred.
- examples of the antiwear agent are zinc dithiophosphate (ZnDTP), zinc dithiocarbamate (ZnDTC), sulfurized molybdenum dithiophosphate (MoDTP), sulfurized molybdenum dithiocarbamate (MoDTC), and the like.
- additives such as viscosity index improver, pour point depressant, ash-free dispersant, surfactant, anti-foaming agent, demulsifier and so on can be added in such a range of the amount that no drawback to the effect of the present invention is brought about.
- the degree of biodegradation of the lubricating oil composition as determined by the microbial degradation test of chemical substances according to the OECD Test Guideline 301C method is 70 % or more (the reference degree of biodegradability is 60 % or more), and has excellent biodegradability.
- the 96-h LC 50 value of the acute toxicity test for Japanese medaka (Oryzias latipes) as determined according to the JIS K 0102 standard is usually 100 mg/L or more, and has low impact on living organisms. Therefore, it can be said that the lubricating oil composition is a very environmentally friendly lubricating oil.
- the lubricating oil composition has such a low pour point as mentioned above so that machinery startability at lower temperatures is excellent with the present composition when it is used as a hydraulic fluid. Also, the present composition has such a high flash point as mentioned above so that it has high flame retardance and hence it belongs to the category of a safe combustible liquid having VG of 32 or more according to the Fire Service Law.
- the biodegradable lubricating oil composition of the present invention has excellent biodegradability, low impact to ecosystems, a high viscosity index, a low pour point, a high flash point, being satisfactory with lubricity, oxidative stability, property of preventing the corrosion of non-ferrous metals, and suitability for use with sealing materials. It has thus an excellent balance of those different properties.
- the lubricating oil composition is preferable, for example, as a hydraulic fluid that is a power transmission fluid used in power transmission, power control, shock absorption and the like in a hydraulic system such as hydraulic machinery or equipment, a lubricating oil for automobiles used in automatic transmission, buffer, driving machinery such as power steering, gears and the like, a metal-working oil for cutting, polishing or plasticizing, and the like.
- Examples 1 to 3 and Comparative examples 1 to 8 (1) Lubricating oil compositions with compositions shown in Tables 1-1 and 1-2 were prepared along with commercially-available products. General properties and biodegradability of these lubricating oil compositions are listed in Tables 2-1 and 2-2.
- Tables 1-1 and 1-2 PET denotes pentaerythritol
- TMP denotes trimethylolpropane
- NPG denotes neopentyl glycol
- ZnDTP denotes zinc dithiophosphate
- POE denotes polyoxyethylene.
- Table 3 Table 4 (2) Tables 3-1 and 3-2 indicate the test results of lubricity, oxidative stability and corrosion prevention of non-ferrous metals for each lubricating oil composition.
- Table 5 Table 6
- Table 4 indicates the test results of suitability for use with sealing materials of the lubricating oil composition of Example 1 and the lubricating oil compositions of Comparative examples I to 4.
- the lubricating oil compositions of the present invention have a well-balanced properties such as excellent biodegradability, a high viscosity index, a low pour point, a high flash point, being satisfactory with lubricity, oxidative stability, property of preventing the corrosion of iron and non-ferrous metals, and suitability for use with sealing materials.
- the biodegradable lubricating oil composition of the present invention comprises a synthetic ester base oil having excellent biodegradability, has well-balanced properties including lubricating performance, and is preferably used, for example, as a hydraulic fluid, automotive lubricating oil, metal-working oil, and so on.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Claims (7)
- Composition d'huile de lubrification biodégradable comprenant(A) une huile à base d'ester synthétique comprenant au moins 50% en masse d'ester encombré d'un acide monocarboxylique aliphatique avec un polyol aliphatique encombré représenté par la formule générale (I) :(B) des ingrédients qui sontayant un degré de biodégradation supérieur ou égal à 70% lorsqu'elle est soumise au test du degré de dégradation microbienne des substances chimiques selon le procédé de la ligne directrice d'essais 301C de l'OCDE.(a) 0,1 à 5,0% en masse d'antioxydant phénolique par rapport à la quantité totale de la composition d'huile de lubrification,(b) 0,01 à 2,0% en masse de sulfonate de calcium ayant un indice de basicité totale dans la plage allant de 0 à 100 mg KOH/g par rapport à la quantité totale de la composition d'huile de lubrification, et(c) 0,01 à 1,0% en masse de composé triazole par rapport à la quantité totale de la composition d'huile de lubrification, et
- Composition d'huile de lubrification biodégradable selon la revendication 1, dans laquelle la valeur LC50 à 96-h du test de toxicité aiguë pour le medaka Japonais (Oryzias latipes) selon le procédé d'essai JIS K0102 est supérieure ou égale à 100 mg/L.
- Composition d'huile de lubrification biodégradable selon la revendication 1 ou 2, dans laquelle l'indice de viscosité déterminé selon le procédé JIS K2283 est supérieur ou égal à 130, le point d'écoulement déterminé selon le procédé JIS K2269 est inférieur ou égal à -40°C, et le point d'éclair déterminé en utilisant l'appareil Cleveland à vase ouvert (COC) selon le procédé JIS K2265 est supérieur ou égal à 250°C.
- Composition d'huile de lubrification biodégradable selon la revendication 1, dans laquelle le polyol aliphatique encombré est au moins un élément choisi parmi le néopentylglycol ; le 2-éthyl-2-méthyl-1,3-propanediol ; le 2,2-diéthyl-1,3-propanediol ; le triméthyloléthane ; le triméthylolpropane ; le triméthylolbutane ; le triméthylolpentane ; le triméthylolhexane ; le triméthylolheptane ; le pentaérythritol ; le 2,2,6,6-tétraméthyl-4-oxa-1,7-heptanediol ; le 2,2,6,6,10,10-hexaméthyl-4,8-dioxa-1,11-undécanediol ; le 2,2,6,6,10,10,14,14-octaméthyl-4,8,12-trioxa-1,15-pentadécanediol ; le 2,6-dihydroxyméthyl-2,6-diméthyl-4-oxa-1,7-heptanediol ; le 2,6,10-trihydroxyméthyl-2,6,10-triméthyl-4,8-dioxa-1,11-undécanediol ; le 2,6,10,14-tétrahydroxyméthyl-2,6,10,14-tétraméthyl-4,8,12-trioxa-1,15-pentadécanediol ; le di(pentaérythritol) ; le tri(pentaérythritol) ; le tétra(pentaérythritol) et le penta(pentaérythritol).
- Composition d'huile de lubrification biodégradable selon l'une des revendications 1 à 4, dans laquelle l'acide monocarboxylique aliphatique est un acide monocarboxylique saturé ou insaturé ayant 6 à 22 atomes de carbone.
- Composition d'huile de lubrification biodégradable selon l'une des revendications 1 à 3, dans laquelle l'ester encombré est au moins un ester choisi parmi un ester d'un acide monocarboxylique saturé ou insaturé ayant 6 à 22 atomes de carbone avec du pentaérythritol et un ester d'un acide monocarboxylique saturé ou insaturé ayant 6 à 22 atomes de carbone avec du triméthylolpropane.
- Composition d'huile de lubrification biodégradable selon l'une des revendications 1 à 6, qui contient 0,1 à 5,0% en masse d'un agent extrême pression et/ou d'un agent anti-usure en tant que composant (B)(d) par rapport à la quantité totale de la composition d'huile de lubrification.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004024291A JP4827381B2 (ja) | 2004-01-30 | 2004-01-30 | 生分解性潤滑油組成物 |
PCT/JP2005/001216 WO2005073353A1 (fr) | 2004-01-30 | 2005-01-28 | Composition d'huile de lubrification biodébradable |
Publications (4)
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EP1707617A1 EP1707617A1 (fr) | 2006-10-04 |
EP1707617A8 EP1707617A8 (fr) | 2006-12-06 |
EP1707617A4 EP1707617A4 (fr) | 2010-05-26 |
EP1707617B1 true EP1707617B1 (fr) | 2017-03-15 |
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EP05709443.5A Not-in-force EP1707617B1 (fr) | 2004-01-30 | 2005-01-28 | Composition d'huile de lubrification biodébradable |
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US (2) | US20090176670A1 (fr) |
EP (1) | EP1707617B1 (fr) |
JP (1) | JP4827381B2 (fr) |
CN (1) | CN100554388C (fr) |
WO (1) | WO2005073353A1 (fr) |
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JP5095177B2 (ja) * | 2006-11-06 | 2012-12-12 | 出光興産株式会社 | 生分解性潤滑油組成物 |
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JP2010052242A (ja) * | 2008-08-28 | 2010-03-11 | Nippon Koyu Ltd | ボールペン用インキ逆流防止剤組成物 |
JP5542322B2 (ja) * | 2008-11-20 | 2014-07-09 | コスモ石油ルブリカンツ株式会社 | 農業機械用潤滑油組成物 |
JP5496502B2 (ja) * | 2008-12-18 | 2014-05-21 | Jx日鉱日石エネルギー株式会社 | 潤滑油組成物 |
CN101531947B (zh) * | 2009-04-13 | 2012-08-29 | 精锐化学(上海)有限公司 | 全合成四季齿轮轴承油及其制备方法 |
JP5827782B2 (ja) | 2009-05-08 | 2015-12-02 | 出光興産株式会社 | 生分解性潤滑油組成物 |
JP5465921B2 (ja) | 2009-05-15 | 2014-04-09 | 出光興産株式会社 | 生分解性潤滑油組成物 |
CN103396865B (zh) * | 2013-07-27 | 2015-05-20 | 广东三和化工科技有限公司 | 一种环境友好高抗磨润滑油及其制备方法 |
JP5916916B2 (ja) * | 2014-03-31 | 2016-05-11 | ウシオケミックス株式会社 | 潤滑性化合物及びそれを含む潤滑剤組成物 |
JP6678647B2 (ja) * | 2014-08-06 | 2020-04-08 | ザ ルブリゾル コーポレイションThe Lubrizol Corporation | 生分解性硫黄成分を有する工業用ギア潤滑剤の添加剤パッケージ |
JP6669343B2 (ja) * | 2015-02-27 | 2020-03-18 | 出光興産株式会社 | 生分解性潤滑油組成物 |
US10190067B2 (en) * | 2016-02-24 | 2019-01-29 | Washington State University | High performance environmentally acceptable hydraulic fluid |
CN105861120B (zh) * | 2016-04-08 | 2018-08-24 | 周宇浩 | 一种可降解的高性能润滑油组合物 |
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JP2020059835A (ja) * | 2018-10-04 | 2020-04-16 | カングー カンパニー リミテッドKwangwoo Co., Ltd. | 環境にやさしく、低粘度であり、高引火性の非水溶性加工油 |
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None * |
Also Published As
Publication number | Publication date |
---|---|
EP1707617A1 (fr) | 2006-10-04 |
WO2005073353A1 (fr) | 2005-08-11 |
CN1914303A (zh) | 2007-02-14 |
US20140155307A1 (en) | 2014-06-05 |
CN100554388C (zh) | 2009-10-28 |
EP1707617A4 (fr) | 2010-05-26 |
EP1707617A8 (fr) | 2006-12-06 |
US20090176670A1 (en) | 2009-07-09 |
JP2005213451A (ja) | 2005-08-11 |
JP4827381B2 (ja) | 2011-11-30 |
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