EP3535357B1 - Composition de lubrifiant avec une caractéristique de viscosité améliorée à basse température d'utilisation - Google Patents
Composition de lubrifiant avec une caractéristique de viscosité améliorée à basse température d'utilisation Download PDFInfo
- Publication number
- EP3535357B1 EP3535357B1 EP17787940.0A EP17787940A EP3535357B1 EP 3535357 B1 EP3535357 B1 EP 3535357B1 EP 17787940 A EP17787940 A EP 17787940A EP 3535357 B1 EP3535357 B1 EP 3535357B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- lubricant composition
- base oil
- kinematic viscosity
- astm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000203 mixture Substances 0.000 title claims description 87
- 239000000314 lubricant Substances 0.000 title claims description 74
- 229920000642 polymer Polymers 0.000 claims description 53
- -1 alkyl methacrylates Chemical class 0.000 claims description 41
- 239000002199 base oil Substances 0.000 claims description 38
- 229920002857 polybutadiene Polymers 0.000 claims description 34
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 32
- 239000000178 monomer Substances 0.000 claims description 28
- 239000005062 Polybutadiene Substances 0.000 claims description 27
- 125000000217 alkyl group Chemical group 0.000 claims description 20
- 150000002148 esters Chemical class 0.000 claims description 19
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 15
- 229920013639 polyalphaolefin Polymers 0.000 claims description 15
- 239000000654 additive Substances 0.000 claims description 14
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 claims description 12
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 11
- 150000001252 acrylic acid derivatives Chemical class 0.000 claims description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 9
- 230000000996 additive effect Effects 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 17
- 150000001875 compounds Chemical class 0.000 description 14
- 229920001577 copolymer Polymers 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 12
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 239000003963 antioxidant agent Substances 0.000 description 9
- 239000003999 initiator Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 238000006116 polymerization reaction Methods 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 239000003921 oil Substances 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 6
- 229920002633 Kraton (polymer) Polymers 0.000 description 6
- 239000011630 iodine Substances 0.000 description 6
- 229910052740 iodine Inorganic materials 0.000 description 6
- 238000010526 radical polymerization reaction Methods 0.000 description 6
- 229910019142 PO4 Inorganic materials 0.000 description 5
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- 229910052751 metal Chemical class 0.000 description 5
- 239000002184 metal Chemical class 0.000 description 5
- 235000021317 phosphate Nutrition 0.000 description 5
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 5
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 4
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 4
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 239000003085 diluting agent Substances 0.000 description 4
- GMSCBRSQMRDRCD-UHFFFAOYSA-N dodecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCOC(=O)C(C)=C GMSCBRSQMRDRCD-UHFFFAOYSA-N 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000005984 hydrogenation reaction Methods 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- FVQMJJQUGGVLEP-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy 2-ethylhexaneperoxoate Chemical compound CCCCC(CC)C(=O)OOOC(C)(C)C FVQMJJQUGGVLEP-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- BWSZXUOMATYHHI-UHFFFAOYSA-N tert-butyl octaneperoxoate Chemical compound CCCCCCCC(=O)OOC(C)(C)C BWSZXUOMATYHHI-UHFFFAOYSA-N 0.000 description 3
- GRWFGVWFFZKLTI-IUCAKERBSA-N (-)-α-pinene Chemical compound CC1=CC[C@@H]2C(C)(C)[C@H]1C2 GRWFGVWFFZKLTI-IUCAKERBSA-N 0.000 description 2
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 description 2
- 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 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 2
- SZAQZZKNQILGPU-UHFFFAOYSA-N 2-[1-(2-hydroxy-3,5-dimethylphenyl)-2-methylpropyl]-4,6-dimethylphenol Chemical compound C=1C(C)=CC(C)=C(O)C=1C(C(C)C)C1=CC(C)=CC(C)=C1O SZAQZZKNQILGPU-UHFFFAOYSA-N 0.000 description 2
- RUMACXVDVNRZJZ-UHFFFAOYSA-N 2-methylpropyl 2-methylprop-2-enoate Chemical compound CC(C)COC(=O)C(C)=C RUMACXVDVNRZJZ-UHFFFAOYSA-N 0.000 description 2
- COCLLEMEIJQBAG-UHFFFAOYSA-N 8-methylnonyl 2-methylprop-2-enoate Chemical compound CC(C)CCCCCCCOC(=O)C(C)=C COCLLEMEIJQBAG-UHFFFAOYSA-N 0.000 description 2
- 239000004342 Benzoyl peroxide Substances 0.000 description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- QOSSAOTZNIDXMA-UHFFFAOYSA-N Dicylcohexylcarbodiimide Chemical compound C1CCCCC1N=C=NC1CCCCC1 QOSSAOTZNIDXMA-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000005069 Extreme pressure additive Substances 0.000 description 2
- YIVJZNGAASQVEM-UHFFFAOYSA-N Lauroyl peroxide Chemical compound CCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCC YIVJZNGAASQVEM-UHFFFAOYSA-N 0.000 description 2
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229920002367 Polyisobutene Polymers 0.000 description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- XYRMLECORMNZEY-UHFFFAOYSA-B [Mo+4].[Mo+4].[Mo+4].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S Chemical compound [Mo+4].[Mo+4].[Mo+4].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S XYRMLECORMNZEY-UHFFFAOYSA-B 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 238000010539 anionic addition polymerization reaction Methods 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 235000019400 benzoyl peroxide Nutrition 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- ZQMIGQNCOMNODD-UHFFFAOYSA-N diacetyl peroxide Chemical compound CC(=O)OOC(C)=O ZQMIGQNCOMNODD-UHFFFAOYSA-N 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 description 2
- 125000004185 ester group Chemical group 0.000 description 2
- 239000010696 ester oil Substances 0.000 description 2
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- JEBMFONDEFPKAD-UHFFFAOYSA-N heptacosan-13-yl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCC(OC(=O)C(C)=C)CCCCCCCCCCCC JEBMFONDEFPKAD-UHFFFAOYSA-N 0.000 description 2
- ZNAOFAIBVOMLPV-UHFFFAOYSA-N hexadecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCCCOC(=O)C(C)=C ZNAOFAIBVOMLPV-UHFFFAOYSA-N 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- JILPJDVXYVTZDQ-UHFFFAOYSA-N lithium methoxide Chemical compound [Li+].[O-]C JILPJDVXYVTZDQ-UHFFFAOYSA-N 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003607 modifier Substances 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
- 239000010705 motor oil Substances 0.000 description 2
- 150000005002 naphthylamines Chemical class 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- HMZGPNHSPWNGEP-UHFFFAOYSA-N octadecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C(C)=C HMZGPNHSPWNGEP-UHFFFAOYSA-N 0.000 description 2
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 2
- NWVVVBRKAWDGAB-UHFFFAOYSA-N p-methoxyphenol Chemical compound COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 description 2
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 2
- 229920000193 polymethacrylate 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
- 150000003873 salicylate salts Chemical class 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- PFBLRDXPNUJYJM-UHFFFAOYSA-N tert-butyl 2-methylpropaneperoxoate Chemical compound CC(C)C(=O)OOC(C)(C)C PFBLRDXPNUJYJM-UHFFFAOYSA-N 0.000 description 2
- ATZHWSYYKQKSSY-UHFFFAOYSA-N tetradecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCOC(=O)C(C)=C ATZHWSYYKQKSSY-UHFFFAOYSA-N 0.000 description 2
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- 238000005809 transesterification reaction Methods 0.000 description 2
- 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 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- NALFRYPTRXKZPN-UHFFFAOYSA-N 1,1-bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane Chemical compound CC1CC(C)(C)CC(OOC(C)(C)C)(OOC(C)(C)C)C1 NALFRYPTRXKZPN-UHFFFAOYSA-N 0.000 description 1
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- YHMYGUUIMTVXNW-UHFFFAOYSA-N 1,3-dihydrobenzimidazole-2-thione Chemical class C1=CC=C2NC(S)=NC2=C1 YHMYGUUIMTVXNW-UHFFFAOYSA-N 0.000 description 1
- OCJBOOLMMGQPQU-UHFFFAOYSA-N 1,4-dichlorobenzene Chemical compound ClC1=CC=C(Cl)C=C1 OCJBOOLMMGQPQU-UHFFFAOYSA-N 0.000 description 1
- 238000005160 1H NMR spectroscopy Methods 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
- BVUXDWXKPROUDO-UHFFFAOYSA-N 2,6-di-tert-butyl-4-ethylphenol Chemical compound CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 BVUXDWXKPROUDO-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
- XQESJWNDTICJHW-UHFFFAOYSA-N 2-[(2-hydroxy-5-methyl-3-nonylphenyl)methyl]-4-methyl-6-nonylphenol Chemical compound CCCCCCCCCC1=CC(C)=CC(CC=2C(=C(CCCCCCCCC)C=C(C)C=2)O)=C1O XQESJWNDTICJHW-UHFFFAOYSA-N 0.000 description 1
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-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
- WDQMWEYDKDCEHT-UHFFFAOYSA-N 2-ethylhexyl 2-methylprop-2-enoate Chemical compound CCCCC(CC)COC(=O)C(C)=C WDQMWEYDKDCEHT-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
- XOUQAVYLRNOXDO-UHFFFAOYSA-N 2-tert-butyl-5-methylphenol Chemical compound CC1=CC=C(C(C)(C)C)C(O)=C1 XOUQAVYLRNOXDO-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
- FRIBMENBGGCKPD-UHFFFAOYSA-N 3-(2,3-dimethoxyphenyl)prop-2-enal Chemical compound COC1=CC=CC(C=CC=O)=C1OC FRIBMENBGGCKPD-UHFFFAOYSA-N 0.000 description 1
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- 239000012991 xanthate Chemical class 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
- MBBWTVUFIXOUBE-UHFFFAOYSA-L zinc;dicarbamodithioate Chemical compound [Zn+2].NC([S-])=S.NC([S-])=S MBBWTVUFIXOUBE-UHFFFAOYSA-L 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/02—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
- C10M107/22—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M107/28—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
- C10M143/10—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation containing aromatic monomer, e.g. styrene
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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
- C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
- C10M143/12—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation containing conjugated diene
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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
- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/10—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate
- C10M145/12—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate monocarboxylic
- C10M145/14—Acrylate; Methacrylate
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- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/24—Polyethers
- C10M145/26—Polyoxyalkylenes
- C10M145/32—Polyoxyalkylenes of alkylene oxides containing 4 or more carbon atoms
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- 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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- 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
- C10M169/041—Mixtures of base-materials and additives the additives being macromolecular compounds only
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
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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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/04—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing aromatic monomers, e.g. styrene
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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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/04—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing aromatic monomers, e.g. styrene
- C10M2205/043—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing aromatic monomers, e.g. styrene 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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/06—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing conjugated dienes
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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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
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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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
- C10M2209/0845—Acrylate; Methacrylate used as base material
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/02—Viscosity; Viscosity index
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/04—Molecular weight; Molecular weight distribution
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/071—Branched chain compounds
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- 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
- C10N2030/02—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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/08—Resistance to extreme temperature
Definitions
- the invention relates to lubricant compositions for use in industrial applications having improved low temperature viscosity characteristics.
- Lubricants for use in industrial applications typically comprise a base oil, such as a mineral oil or synthetic oil, and one or more additives.
- Additives deliver, for example, reduced friction and wear, increased viscosity, improved viscosity index, and resistance to corrosion, oxidation, aging or contamination.
- a lubricant to reduce friction is dependent on its viscosity. Generally, the least viscous fluid, which still forces two moving surfaces apart, is desired. Many lubricant applications require good lubricant properties over a broad temperature range, for example, when the engine is cold as well as when it has reached its operating temperature. Therefore, a lubricant's viscosity should change as little as possible with temperature, to provide constant lubricant properties over a broad temperature range.
- the temperature-dependence of a lubricant's viscosity is measured by the viscosity index (VI).
- the viscosity index is determined from the kinematic viscosity at 40°C (KV 40 ) and the kinematic viscosity at 100°C (KV 100 ), which is a good reflection of most engines' operating conditions.
- Additives which increase the viscosity index are referred to as viscosity index improvers (VIIs).
- Polymers of alkyl (meth)acrylates, and especially polyalkyl(meth)acrylate based comb polymers, are known in the art to act as good viscosity index improvers in lubricant oils.
- WO 2007/003238 A1 describes oil-soluble comb polymers based on polyolefin-based macromonomers, especially polybutadiene-based methacrylic esters, and C1-C10 alkyl methacrylates.
- the comb polymers can be used as an additive for lubricant oils, in order to improve the viscosity index and shear stability. They show a particularly high viscosity index-improving action in lubricant oils. Low temperature properties are not disclosed therein.
- the viscosity index does not properly reflect the lubricant's properties at temperatures lower than 40°C, for instance at a low temperature range of -20°C to +20°C.
- a lubricant having good lubricant properties at the operating temperature of a machine or an engine therefore, does not necessarily have equally good properties during the engine's cold-start phase.
- the cold-start properties of a lubricant are, however, an important factor contributing to an improved fuel efficiency of engines.
- the low-temperature properties of lubricants can be measured by the R-factor, which is defined as the ratio of the kinematic viscosity at -20°C to the kinematic viscosity at +20°C. Since the kinematic viscosity at -20°C is generally higher than at +20°C, the R-factor is generally greater than 1. Thus, a narrow viscosity difference between -20°C and +20°C is reflected by a low R-factor (an R-factor close to 1).
- the aim of the present invention is to provide a lubricant composition with good low temperature viscosity properties.
- the difference of the kinematic viscosity of the lubricant composition at -20°C and +20°C should be small.
- the present invention further aims at providing an additive for a lubricant composition for lowering the difference between the kinematic viscosity at -20°C and +20°C.
- the present invention is therefore directed to a lubricant composition, comprising:
- the lubricant composition is preferably defined by an R-factor of less than or equal to 8, wherein the R-factor is defined as the ratio of the kinematic viscosity of the lubricant composition at -20°C (KV -20 ) to the kinematic viscosity at +20°C (KV +20 ), KV -20 /KV +20 , the kinematic viscosities are measured according to ASTM D445.
- the lubricant composition has an R-factor of 1 to 8.
- the composition is preferably formulated to yield a certain kinematic viscosity at 40°C according to ASTM D445. This can be achieved by adjusting the relative amounts of comb polymer, base oil and optional additives.
- the composition has a kinematic viscosity at 40°C according to ASTM D445 of 10 to 120 mm 2 /s, more preferably 40 to 100 mm 2 /s, most preferably 70 to 80 mm 2 /s.
- the lubricant composition comprises:
- Suitable synthetic base oils are selected from API Group IV oils. Particularly preferred are polyalphaolefins (PAOs).
- the synthetic base oil is typically characterized by its kinematic viscosity, i.e. the kinematic viscosity of the pure base oil without any additives.
- the synthetic base oil has a kinematic viscosity at 100°C according to ASTM D445 of 1 mm 2 /s to 20 mm 2 /s, more preferably 1 to 10 mm 2 /s, most preferably 1 to 5 mm 2 /s and especially preferred 2 to 3 mm 2 /s.
- the synthetic base oil is a polyalphaolefin having a kinematic viscosity at 100°C according to ASTM D445 of 1 mm 2 /s to 20 mm 2 /s, more preferably 1 to 10 mm 2 /s, most preferably 1 to 5 mm 2 /s and especially preferred 2 to 3 mm 2 /s.
- a comb polymer in the context of this invention comprises a first polymer, which is also referred to as backbone or main chain, and a multitude of further polymers which are referred to as side chains and are bonded covalently to the backbone.
- the backbone of the comb polymer is formed by the interlinked unsaturated groups of the mentioned (meth)acrylates.
- the ester groups of the (meth)acrylic esters, the phenyl radicals of the styrene monomers and the substituents of further free-radically polymerizable comonomers form the side chains of the comb polymer.
- the term "main chain” does not necessarily mean that the chain length of the main chain is greater than that of the side chains.
- the amount of styrene in the comb polymer is given in percent by weight based on the total weight of the monomer mixture.
- total weight of the monomer mixture refers to the total weight of the monomers, excluding any additives, such as polymerization initiators, polymerization promotors, chain transfer agents and diluents, which might be added to the monomer mixture to facilitate polymerization.
- the relative amounts of monomers in the monomer mixture correspond to the relative amounts of the corresponding monomer units in the copolymer.
- the hydroxylated hydrogenated polybutadiene for use in accordance with the invention has a number-average molar mass M n of 4.000 to 6.000 g/mol, preferably 4.000 to 5.000 g/mol. Because of their high molar mass, the hydroxylated hydrogenated polybutadienes can also be referred to as macroalcohols in the context of this invention.
- the number-average weight M n is determined by size exclusion chromatography using commercially available polybutadiene standards. The determination is effected to DIN 55672-1 by gel permeation chromatography with THF as eluent.
- the hydroxylated hydrogenated polybutadiene has a hydrogenation level of at least 99%.
- An alternative measure of the hydrogenation level which can be determined on the copolymer of the invention is the iodine number.
- the iodine number refers to the number of grams of iodine which can be added onto 100 g of copolymer.
- the copolymer of the invention has an iodine number of not more than 5 g of iodine per 100 g of copolymer.
- the iodine number is determined by the Wijs method according to DIN 53241-1:1995-05.
- Preferred hydroxylated hydrogenated polybutadienes can be obtained according to GB 2270317 .
- hydroxylated hydrogenated polybutadienes are also commercially available.
- a further supplier of suitable alcohols based on hydrogenated polybutadiene is Cray Valley (Paris), a daughter company of Total (Paris), or the Sartomer Company (Exton, PA, USA).
- the hydroxylated hydrogenated polybutadiene is a hydroxyethyl- or hydroxypropyl-terminated hydrogenated polybutadiene. Particular preference is given to hydroxypropyl-terminated polybutadienes.
- These monohydroxylated hydrogenated polybutadienes can be prepared by first converting butadiene monomers by anionic polymerization to polybutadiene. Subsequently, by reaction of the polybutadiene monomers with ethylene oxide or propylene oxide, a hydroxy-functionalized polybutadiene can be prepared. This hydroxylated polybutadiene can be hydrogenated in the presence of a suitable transition metal catalyst.
- esters of (meth)acrylic acid for use in accordance with the invention and a hydroxylated hydrogenated polybutadiene described are also referred to as macromonomers in the context of this invention because of their high molar mass.
- (meth)acrylic acid refers to acrylic acid and methacrylic acid and to mixtures thereof; methacrylic acid being particularly preferred.
- (meth)acrylate refers to esters of acrylic acid and esters of methacrylic acid and to mixtures thereof; esters of methacrylic acid being particularly preferred.
- the macromonomers for use in accordance with the invention can be prepared by transesterification of alkyl (meth)acrylates. Reaction of the alkyl (meth)acrylate with the hydroxylated hydrogenated polybutadiene forms the ester of the invention. Preference is given to using methyl (meth)acrylate or ethyl (meth)acrylate as reactant.
- This transesterification is widely known.
- a heterogeneous catalyst system such as lithium hydroxide/calcium oxide mixture (LiOH/CaO), pure lithium hydroxide (LiOH), lithium methoxide (LiOMe) or sodium methoxide (NaOMe) or a homogeneous catalyst system such as isopropyl titanate (Ti(OiPr)4) or dioctyltin oxide (Sn(OCt)2O).
- the reaction is an equilibrium reaction. Therefore, the low molecular weight alcohol released is typically removed, for example by distillation.
- the macromonomers can be obtained by a direct esterification proceeding, for example, from (meth)acrylic acid or (meth)acrylic anhydride, preferably under acidic catalysis by p-toluenesulfonic acid or methanesulfonic acid, or from free methacrylic acid by the DCC method (dicyclohexylcarbodiimide).
- the present hydroxylated hydrogenated polybutadiene can be converted to an ester by reaction with an acid chloride such as (meth)acryloyl chloride.
- polymerization inhibitors are used, for example the 4-hydroxy-2,2,6,6-tetramethylpiperidinooxyl radical and/or hydroquinone monomethyl ether.
- Some of the macromonomers for use in accordance with the invention are also commercially available, for example Kraton Liquid® L-1253 which is produced from Kraton Liquid® L-1203 and is a hydrogenated polybutadiene methacrylate-functionalized to an extent of about 96% by weight, having about 50% each of 1,2 repeat units and 1,4 repeat units, from Kraton Polymers GmbH (Eschborn, Germany).
- Kraton® L-1253 is likewise synthesized according to GB 2270317 .
- Suitable alkyl (meth)acrylates are, for example, methyl and ethyl acrylate, propyl methacrylate, butyl methacrylate (BMA) and acrylate (BA), isobutyl methacrylate (IBMA), hexyl and cyclohexyl methacrylate, cyclohexyl acrylate, 2-ethylhexyl acrylate (EHA), 2-ethylhexyl methacrylate, octyl methacrylate, nonyl methacrylate, decyl methacrylate, isodecyl methacrylate (IDMA, based on branched (C10)alkyl isomer mixture), undecyl methacrylate, dodecyl methacrylate (also known as lauryl methacrylate), tridecyl methacrylate, tetradecyl methacrylate (also known as myristyl methacrylate), penta
- the suitable C10-15 alkyl (meth)acrylates include, for example, decyl (meth)acrylate, undecyl (meth)acrylate, 5-methylundecyl (meth)acrylate, dodecyl (meth)acrylate, 2-methyldodecyl (meth)acrylate, tridecyl (meth)acrylate, 5-methyltridecyl (meth)acrylate, tetradecyl (meth)acrylate and/or pentadecyl (meth)acrylate.
- Particularly preferred C10-15 alkyl (meth)acrylates are (meth)acrylic esters of a linear C12-14 alcohol mixture (C12-14 alkyl (meth)acrylate).
- the comb polymer (B) comprises:
- the polyalkyl(meth)acrylate based comb polymer in accordance with the invention may preferably be obtained by radical polymerization.
- the comb polymer may also be obtained by polymer-analogous reactions and/or graft copolymerization.
- the comb polymer may be obtained by radical polymerization involving the steps of
- the polymerization reaction is preferably initiated by mixing the monomer mixture with a radical initiator. In some cases, it may be required to heat the reaction mixture to the reaction temperatures specified below to initiate the polymerization.
- Radical initiators may be selected from any of the well-known free-radical-producing compounds such as peroxy, hydroperoxy and azo initiators, including, for example, acetyl peroxide, benzoyl peroxide, lauroyl peroxide, tert-butyl peroxyisobutyrate, caproyl peroxide, cumene hydroperoxide, 1, 1-di(tert-butylperoxy)-3,3,5-trimethylcyclohexane, azobisisobutyronitrile and tert-butyl peroctoate (also known as tert-butylperoxy-2-ethylhexanoate).
- peroxy hydroperoxy and azo initiators
- Preferable radical initiators are benzoyl peroxide, lauroyl peroxide, tert-butyl peroxyisobutyrate, azobisisobutyronitrile and tert-butyl peroctoate. Tert-butyl peroctoate is particularly preferred.
- the initiator concentration is typically between 0.025 and 1 wt-%, preferably from 0.05 to 0.75 wt-%, more preferably from 0.1 to 0.5 wt-% and most preferably from 0.2 to 0.4 wt-%, based on the total weight of the monomers.
- the polymerization is preferably conducted at a temperature below the boiling point of the reaction mixtures.
- the temperature is in the range of 60 to 150°C, more preferably 85 to 130°C, most preferably 90 to 110°C.
- One or more polymerization promoters may also be added to the monomer mixture.
- Suitable promoters include, for example, quaternary ammonium salts such as benzyl(hydrogenated-tallow)-dimethylammonium chloride and amines.
- the promoters are soluble in hydrocarbons. When used, these promoters are present at levels from 1 to 50 wt-%, preferably from 5 to 25 wt-%, based on total weight of initiator.
- Chain transfer agents may also be added to control the molecular weight of the copolymer.
- the preferred chain transfer agents are alkyl mercaptans such as lauryl mercaptan (also known as dodecyl mercaptan, DDM).
- the amount of chain transfer agent is preferably 5 wt-% or less, more preferably 2 wt-% or less, based on the total weight of monomers.
- Diluents may also be added to the monomer mixture.
- the first and second reaction mixture each comprise up to 60 wt-% diluent, more preferably 5 to 60 wt-%, most preferably 10 to 60 wt-%.
- aromatic hydrocarbons such as benzene, toluene, xylene and aromatic naphthas
- chlorinated hydrocarbons such as ethylene dichloride, chlorobenzene and dichlorobenzene
- esters such as ethyl propionate or butyl acetate
- C6-C20 aliphatic hydrocarbons (such as cyclohexane, heptane and octane)
- mineral oils such as paraffinic and naphthenic oils
- synthetic base oils such as poly([alpha]-olefin) oligomer (PAO) lubricating oils, for example, [alpha]-decene dimers, trimers and mixtures thereof).
- PAO poly([alpha]-olefin) oligomer
- the lubricant composition in accordance with the present invention may further comprise auxiliary additives selected from the group consisting of pour point depressants, antiwear agents, antioxidants, dispersants, detergents, friction modifiers, antifoam agents, extreme pressure additives, and corrosion inhibitors.
- auxiliary additives selected from the group consisting of pour point depressants, antiwear agents, antioxidants, dispersants, detergents, friction modifiers, antifoam agents, extreme pressure additives, and corrosion inhibitors.
- the auxiliary additives are preferably added in an amount of 0.1 to 25 weight-%, based on the total weight of the lubricant composition.
- Suitable pour-point depressants include ethylene-vinyl acetate copolymers, chlorinated paraffin-naphthalene condensates, chlorinated paraffin-phenol condensates, polymethacrylates, polyalkylstyrenes, etc. Preferred are polymethacrylates having a mass-average molecular weight of from 5.000 to 50.000 g/mol.
- the preferred antiwear and extreme pressure additives include sulfur-containing compounds such as zinc dithiophosphate, zinc di-C3-12-alkyldithiophosphates (ZnDTPs), zinc phosphate, zinc dithiocarbamate, molybdenum dithiocarbamate, molybdenum dithiophosphate, disulfides, sulfurized olefins, sulfurized oils and fats, sulfurized esters, thiocarbonates, thiocarbamates, polysulfides, etc.; phosphorus-containing compounds such as phosphites, phosphates, for example trialkyl phosphates, triaryl phosphates, e.g.
- tricresyl phosphate amine-neutralized mono- and dialkyl phosphates, ethoxylated mono-and dialkyl phosphates,phosphonates, phosphines, amine salts or metal salts of those compounds, etc.; sulfur and phosphorus-containing anti-wear agents such as thiophosphites, thiophosphates, thiophosphonates, amine salts or metal salts of those compounds, etc.
- the suitable antioxidants include, for example, phenol-based antioxidants and amine-based antioxidants.
- Phenol-based antioxidants include, for example, octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate; 4,4' -methylenebis(2,6-di-tert-butylphenol); 4,4' -bis(2,6-di-t-butylphenol); 4,4' -b is(2-methyl-6-t-butylphenol); 2,2' -methylenebis(4-ethyl-6-t-butylphenol); 2,2' -methylenebis(4-methyl-6-t-butyl phenol); 4,4' -butyl idenebis(3-methyl-6-t-butylphenol); 4,4'-isopropylidenebis(2,6-di-t-butylphenol); 2,2'-methylenebis(4-methyl-6-nonylphenol); 2,2
- the amine-based antioxidants include, for example, monoalkyldiphenylamines such as monooctyldiphenylamine, monononyldiphenylamine, etc.; dialkyldiphenylamines such as 4,4' -dibutyldiphenylamine, 4,4'-dipentyldiphe nylamine, 4,4'- dihexyldiphenylamine, 4,4'-diheptyldiphenylamine, 4,4'-dioctyldiphenylamine, 4,4'-dinonyldiphenylamine, etc.; polyalkyldiphenylamines such as tetrabutyldiphenylamine, tetrahexyldiphenylamine, tetraoctyldiphenylamine, tetranonyldiphenylamine, etc.; nap
- Appropriate dispersants include poly(isobutylene) derivatives, for example poly(isobutylene)succinimides (PIBSIs), including borated PIBSIs; and ethylenepropylene oligomers having N/O functionalities.
- PIBSIs poly(isobutylene)succinimides
- the preferred detergents include metal-containing compounds, for example phenoxides; salicylates; thiophosphonates, especially thiopyrophosphonates, thiophosphonates and phosphonates; sulfonates and carbonates.
- metal these compounds may contain especially calcium, magnesium and barium. These compounds may preferably be used in neutral or overbased form.
- Friction modifiers used may include mechanically active compounds, for example molybdenum disulfide, graphite (including fluorinated graphite), poly(trifluoroethylene), polyamide, polyimide; compounds that form adsorption layers, for example long-chain carboxylic acids, fatty acid esters, ethers, alcohols, amines, amides, imides; compounds which form layers through tribochemical reactions, for example saturated fatty acids, phosphoric acid and thiophosphoric esters, xanthogenates, sulfurized fatty acids; compounds that form polymer-like layers, for example ethoxylated dicarboxylic partial esters, dialkyl phthalates, methacrylates, unsaturated fatty acids, sulfurized olefins or organometallic compounds, for example molybdenum compounds (molybdenum dithiophosphates and molybdenum dithiocarbamates MoDTCs) and combinations thereof with ZnDTPs, copper-containing organic compounds.
- Suitable antifoam agents are silicone oils, fluorosilicone oils, fluoroalkyl ethers, etc..
- the lubricant composition according to the invention can be useful for various applications including industrial gear oil, lubricant for wind turbine, compressor oil, hydraulic fluid, paper machine lubricant, engine or motor oil, transmission and/or drive-trains fluid, machine tools lubricant, metalworking fluids, and transformer oils to name a few.
- the invention also relates to the use of a comb polymer as described above as an additive for a base oil to produce a lubricant composition, characterized in that the lubricant composition preferably has an R-factor of less than or equal to 8, wherein the R-factor is defined as the ratio of the kinematic viscosity of the lubricant composition at -20°C to the kinematic viscosity at +20°C measured according to ASTM D445.
- the lubricant composition has an R-factor of 1 to 8.
- the lubricant composition comprises a synthetic base oil.
- the base oil is preferably selected form the group consisting of polyalphaolefins, naphthenic base oils and mixtures thereof.
- the lubricant composition comprises a polyalphaolefin base oil having a kinematic viscosity at 100°C according to ASTM D445 of 1 mm 2 /s to 20 mm 2 /s, more preferably 1 to 10 mm 2 /s, most preferably 1 to 5 mm 2 /s and especially preferred 2 to 3 mm 2 /s.
- the lubricant composition preferably has a kinematic viscosity at 40°C according to ASTM D445 of 10 to 120 mm 2 /s, more preferably 40 to 100 mm 2 /s, most preferably 70 to 80 mm 2 /s.
- the invention relates to a method of producing a lubricant composition having an R-factor of less than or equal to 8, preferably 1 to 8, wherein the R-factor is defined as the ratio of the kinematic viscosity of the lubricant composition at -20°C to the kinematic viscosity at +20°C measured according to ASTM D445, the method comprising the step of adding a comb polymer according to the present invention to a synthetic base oil, the synthetic base oil being preferably a polyalphaolefin base oil having a kinematic viscosity at 100°C according to ASTM D445 of 1 mm 2 /s to 20 mm 2 /s, more preferably 1 to 10 mm 2 /s, most preferably 1 to 5 mm 2 /s and especially preferred 2 to 3 mm 2 /s.
- the method is preferably characterized by adding the comb polymer in an amount to get a lubricant composition with a kinematic viscosity at 40°C according to ASTM D445 of 10 to 120 mm 2 /s, more preferably 40 to 100 mm 2 /s, most preferably 70 to 80 mm 2 /s.
- the macroalcohol was synthesized by an anionic polymerization of 1,3-butadiene with butyllithium at 20-45°C. On attainment of the desired degree of polymerization, the reaction was stopped by adding propylene oxide and lithium was removed by precipitation with methanol. Subsequently, the polymer was hydrogenated under a hydrogen atmosphere in the presence of a noble metal catalyst at up to 140°C and pressure 200 bar. After the hydrogenation had ended, the noble metal catalyst was removed and organic solvent was drawn off under reduced pressure. Finally, the base oil NB 3020 was used for dilution to a polymer content of 70% by weight.
- the vinyl content of the macroalcohol was 61%, the hydrogenation level > 99% and the OH functionality > 98%. These values were determined by H-NMR (nuclear resonance spectroscopy).
- Comb polymers according to the invention were prepared according to the following free radical polymerization procedure.
- a mixture of 100 g of all the monomers e.g. as detailed in Table 1
- ester oil e.g. diisononyl adipate
- 35% of this diluted mixture is charged into a continuously stirred glass reactor, followed by addition of 0.105 g of initiator t -butylperoxy 2-ethylhexanoate.
- the rest of the monomer mixture is gradually added into the glass reactor at constant flow rate for 3 h, in parallel with the addition of another 0.195 g of initiator t -butylperoxy 2-ethylhexanoate, also being introduced at constant flow rate for 3 h.
- Reaction temperature is held constant at 90°C.
- additional 2x0.2 g of initiator t -butylperoxy 2-ethylhexanoate is added to ensure the completion of the polymerization, 2 and 5 hours after the end of the monomer feeding, while the reaction is kept at 90°C.
- additional dilution ester oil can be added.
- Lauryl methacrylate is a mixture of linear C 12 and C 14 alkyl methacrylates with a ratio of C 12 to C 14 alkyl methacrylate of around 73/27.
- compositions of the monomer mixtures used to prepare exemplary copolymers according to the invention are given in the following Table 1.
- the amounts of monomers are given as weight-% based on the total weight of the comb polymer.
- Comb polymers A and B are inventive examples and have a styrene content claimed by the present invention.
- Comb polymer C is a comparative example and comprises a higher amount of styrene. It was prepared to show that a higher amount of styrene leads to a higher R-factor.
- polyalkylmethacrylates are known viscosity index improvers and were used in comparative lubricant compositions. They were prepared to show that an R-factor within the claimed range of 1-8 can only be reached by using comb polymers which comprise a certain amount of an ester of (meth)acrylic acid and a hydroxylated hydrogenated polybutadiene.
- Comparative copolymer D is a polyalkylmethacrylate prepared through similar aforementioned free radical polymerization procedure from 89.97% by weight of dodecyl pentadecyl methacrylate and 10.03% by weight of methyl methacrylate.
- Dodecyl pentadecyl methacrylate is a mixture of branched and linear C 12 to C 15 alkyl methacrylates with an average composition of 16 to 26% by weight of C 12 alkyl methacrylate, 24 to 34% by weight of C 13 alkyl methacrylate, 24 to 34% by weight of C 14 alkyl methacrylate, and 16 to 26% by weight of C 15 alkyl methacrylate, and approximately 80% linear alkyl methacrylates.
- Comparative copolymer E is a polyalkylmethacrylate prepared through similar aforementioned free radical polymerization procedure from 99.80% by weight of C 12 to C 15 alkyl methacrylate (comprising 20% C 12 alkyl methacrylate, 34% C 13 alkyl methacrylate, 29% C 14 alkyl methacrylate, and 17% C 15 alkyl methacrylate, with approximately 40% linear alkyl methacrylates) and 0.20% by weight of methyl methacrylate.
- Lubricant compositions were obtained by mixing a poly-alpha-olefin base oil (PAO2) having a kinematic viscosity at 100°C of 2 mm 2 /s according to ASTM D445 and the indicated amount of copolymers as viscosity index improvers according to the following table targeting a KV 40 of 76 mm 2 /s.
- PAO2 poly-alpha-olefin base oil
- Table 2 lubricant compositions comprising comb polymers and base oil No Base oil Copolymer Amount of styrene [% by weight]* ) Amount of copolymer [% by weight]** ) 1 PAO2 A 0.2 25.2 2 PAO2 B 11.0 63.9 3 PAO2 C 39.8 40.8 CE 4 PAO2 D -- 41.1 CE 5 PAO2 E -- 48.5 CE * ) based on the total weight of the comb polymer ** ) based on the total weight of the lubricant composition CE: comparative example
- the lubricant compositions were tested by determining the kinematic viscosity at different temperatures, the viscosity index and the R-factor.
- the kinematic viscosity was determined according to ASTM D445, the viscosity index was determined according to ASTM D2270, and the R-factor was calculated as the ratio of the kinematic viscosity at -20°C to the kinematic viscosity at +20°C.
- Table 3 viscosity data of lubricant compositions No.
- compositions 1 and 2 comprising the comb polymers A and B, respectively
- compositions according to the invention therefore guarantee a good viscosity characteristic at low operating temperature, defined as an R-factor lower than 8.
- the comparative lubricant compositions compositions 3, 4 and 5, comprising comb polymers with a higher amount of styrene or conventional polyalkylmethacrylates D and E
- Example 1 By using the inventive polymers (Examples 1 and 2) the viscosity increase is much lower compared to the use of standard polymers (Examples 4 and 5) or a polymer with higher styrene content (Example 3).
- the lubricant compositions comprising the comb polymers according to the present invention show a KV 20 in the range of 130 to 140 and a KV -20 in the range of 640 to 870.
- VI is not appropriate to extrapolate viscosities down to temperatures below 40°C, e.g. to -20°C.
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- Organic Chemistry (AREA)
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Claims (16)
- Composition de lubrifiant, comprenant :(A) 20 à 90 % en poids d'une huile de base synthétique ; et(B) 10 à 80 % en poids d'un polymère en peigne, comprenant les monomères suivants :(a) 20 à 35 % en poids d'esters d'acide (méth)acrylique et d'un polybutadiène hydrogéné hydroxylé ; et(b) 0,2 % en poids à 15 % en poids de styrène,(c) 0,2 à 20 % en poids de méthacrylates d'alkyle ayant 12 à 15 atomes de carbone dans la chaîne alkyle,(d) 50 à 70 % en poids de (méth)acrylates d'alkyle ayant 1 à 4 atomes de carbone dans la chaîne alkyle,par rapport au poids total du polymère en peigne, dans laquelle les quantités des composants (A) et (B) sont par rapport au poids total de la composition de lubrifiant.
- Composition de lubrifiant selon la revendication 1, dans laquelle la composition de lubrifiant est caractérisée par un rapport de la viscosité cinématique de la composition de lubrifiant à -20 °C (KV-20) à la viscosité cinématique à +20 °C (KV+20), KV-20/KV+20, inférieur ou égal à 8, dans laquelle les viscosités cinématiques sont mesurées selon la norme ASTM D445.
- Composition de lubrifiant selon la revendication 1 ou 2, dans laquelle l'huile de base synthétique (A) est une poly-alpha-oléfine ayant une viscosité cinématique à 100 °C selon la norme ASTM D445 de 1 à 20 mm2/s.
- Composition de lubrifiant selon la revendication 1 ou 2, dans laquelle l'huile de base synthétique (A) est une poly-alpha-oléfine ayant une viscosité cinématique à 100 °C selon la norme ASTM D445 de 1 à 10 mm2/s.
- Composition de lubrifiant selon la revendication 1 ou 2, dans laquelle l'huile de base synthétique (A) est une poly-alpha-oléfine ayant une viscosité cinématique à 100 °C selon la norme ASTM D445 de 1 à 5 mm2/s.
- Composition de lubrifiant selon la revendication 1 ou 2, dans laquelle l'huile de base synthétique (A) est une poly-alpha-oléfine ayant une viscosité cinématique à 100 °C selon la norme ASTM D445 de 2 à 3 mm2/s.
- Composition de lubrifiant selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle comprend 30 à 80 % en poids de l'huile de base synthétique (A) et 20 à 70 % en poids du polymère en peigne (B), par rapport au poids total de la composition de lubrifiant.
- Composition de lubrifiant selon l'une quelconque des revendications précédentes, dans laquelle le polybutadiène hydrogéné hydroxylé du composant (a) a une masse moléculaire moyenne en nombre Mn selon la norme DIN 55672-1 de 4 000 à 5 000 g/mol.
- Composition de lubrifiant selon l'une quelconque des revendications précédentes, dans laquelle le polymère en peigne (B) comprend :(a) 25 à 30 % en poids d'esters d'acide (méth)acrylique et d'un polybutadiène hydrogéné hydroxylé,(b) 0,2 à 15 % en poids de styrène,(c) 0,2 à 15 % en poids de méthacrylates d'alkyle ayant 12 à 14 atomes de carbone dans la chaîne alkyle,(d) 50 à 65 % en poids de méthacrylate de butyle et(e) 0,1 à 0,2 % en poids de méthacrylate de méthyle, par rapport au poids total du polymère en peigne.
- Utilisation d'un polymère en peigne, comprenant :(a) 20 à 35 % en poids d'esters d'acide (méth)acrylique et d'un polybutadiène hydrogéné hydroxylé,(b) 0,2 à 15 % en poids de styrène,(c) 0,2 à 20 % en poids de méthacrylates d'alkyle ayant 12 à 15 atomes de carbone dans la chaîne alkyle,(d) 50 à 65 % en poids de (méth)acrylates d'alkyle ayant 1 à 4 atomes de carbone dans la chaîne alkyle,par rapport au poids total du polymère en peigne,
en tant qu'additif pour une huile de base pour produire une composition de lubrifiant ayant un facteur R inférieur ou égal à 8, dans laquelle le facteur R est défini comme le rapport de la viscosité cinématique de la composition de lubrifiant à -20 °C à la viscosité cinématique à +20 °C mesurées selon la norme ASTM D445. - Utilisation selon la revendication 10, dans laquelle l'huile de base est une huile de base poly-alpha-oléfine ayant une viscosité cinématique à 100 °C selon la norme ASTM D445 de 1 mm2/s à 20 mm2/s.
- Utilisation selon la revendication 10, dans laquelle l'huile de base est une huile de base poly-alpha-oléfine ayant une viscosité cinématique à 100 °C selon la norme ASTM D445 de 1 à 10 mm2/s.
- Utilisation selon la revendication 10, dans laquelle l'huile de base est une huile de base poly-alpha-oléfine ayant une viscosité cinématique à 100 °C selon la norme ASTM D445 de 1 à 5 mm2/s.
- Utilisation selon la revendication 10, dans laquelle l'huile de base est une huile de base poly-alpha-oléfine ayant une viscosité cinématique à 100 °C selon la norme ASTM D445 de 2 à 3 mm2/s.
- Utilisation selon les revendications 10 à 14, caractérisée en ce que la composition de lubrifiant a un facteur R de 1 à 8.
- Utilisation selon les revendications 10 à 15, caractérisée en ce que le polymère en peigne (B) comprend :(a) 25 à 30 % en poids d'esters d'acide (méth)acrylique et d'un polybutadiène hydrogéné hydroxylé,(b) 0,2 à 15 % en poids de styrène,(c) 0,2 à 15 % en poids de méthacrylates d'alkyle ayant 12 à 14 atomes de carbone dans la chaîne alkyle,(d) 50 à 65 % en poids de méthacrylate de butyle et(e) 0,1 à 0,2 % en poids de méthacrylate de méthyle, par rapport au poids total du polymère en peigne.
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PCT/EP2017/077605 WO2018083027A1 (fr) | 2016-11-02 | 2017-10-27 | Composition lubrifiante d'une caractéristique de viscosité améliorée à basse température de fonctionnement |
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EP (1) | EP3535357B1 (fr) |
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KR (1) | KR102455761B1 (fr) |
CN (1) | CN109923195B (fr) |
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MX2019007208A (es) * | 2016-12-19 | 2019-08-16 | Evonik Oil Additives Gmbh | Composicion de aceites lubricantes que comprende polimeros peine dispersantes. |
EP3652284B1 (fr) * | 2017-07-14 | 2021-06-02 | Evonik Operations GmbH | Polymères en peigne à fonctionnalité imide |
EP3498808B1 (fr) | 2017-12-13 | 2020-05-13 | Evonik Operations GmbH | Agent améliorant l'indice de viscosité présentant une meilleure résistance au cisaillement et une meilleure solubilité après cisaillement |
MX2021011416A (es) * | 2019-03-20 | 2021-10-13 | Evonik Operations Gmbh | Nuevos (met)acrilatos de polialquilo para mejorar la economia de combustible, la dispersion y el rendimiento de los depositos. |
AU2019477845A1 (en) * | 2019-12-12 | 2022-07-28 | Evonik Operations Gmbh | High viscosity polyacrylate base fluids |
US20210179965A1 (en) * | 2019-12-16 | 2021-06-17 | Infineum International Limited | High Viscosity Index Comb Copolymer Viscosity Modifiers and Methods of Modifying Lubricant Viscosity Using Same |
US11384311B2 (en) * | 2019-12-16 | 2022-07-12 | Infineum International Limited | High viscosity index comb polymer viscosity modifiers and methods of modifying lubricant viscosity using same |
US20210179960A1 (en) * | 2019-12-16 | 2021-06-17 | Infineum International Limited | High Viscosity Index Comb Copolymer Viscosity Modifiers and Methods of Modify Lubricant Viscosity Using Same |
CN114846125B (zh) * | 2019-12-27 | 2024-01-16 | 出光兴产株式会社 | 润滑油组合物 |
US20230312797A1 (en) * | 2020-09-14 | 2023-10-05 | Sanyo Chemical Industries, Ltd. | Viscosity index improving agent and lubricating oil composition |
KR20230037047A (ko) * | 2020-09-14 | 2023-03-15 | 산요가세이고교 가부시키가이샤 | 점도 지수 향상제 및 윤활유 조성물 |
EP4060009B1 (fr) * | 2021-03-19 | 2023-05-03 | Evonik Operations GmbH | Un agent améliorant l'indice de viscosité et composition lubrifiante |
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GB2047266B (en) * | 1979-04-09 | 1984-02-08 | Exxon Research Engineering Co | Viscosity index lubricating oils |
US4611031A (en) * | 1985-01-28 | 1986-09-09 | Rohm And Haas Company | Process for the preparation of a compatibilizer for concentrated polymer blends and compatibilizer product |
US5393843A (en) | 1992-08-31 | 1995-02-28 | Shell Oil Company | Butadiene polymers having terminal functional groups |
DE4312715A1 (de) * | 1993-04-20 | 1994-10-27 | Roehm Gmbh | Kammpolymere |
DE4431302A1 (de) | 1994-09-02 | 1996-03-07 | Roehm Gmbh | Kammpolymere |
KR100397715B1 (ko) * | 1998-03-05 | 2003-09-17 | 이 아이 듀폰 디 네모아 앤드 캄파니 | 온도 및 전단에 대한 점도 반응이 제어된 중합체 필름 |
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DE102007032120A1 (de) * | 2007-07-09 | 2009-01-15 | Evonik Rohmax Additives Gmbh | Verwendung von Kammpolymeren zur Verringerung des Kraftstoffverbrauchs |
DE102007046223A1 (de) * | 2007-09-26 | 2009-04-02 | Evonik Rohmax Additives Gmbh | Verwendung von Kammpolymeren zur Verringerung des Kraftstoffverbrauchs |
DE102009001447A1 (de) * | 2009-03-10 | 2010-09-16 | Evonik Rohmax Additives Gmbh | Verwendung von Kammpolymeren zur Verbesserung des Lasttragevermögens |
BRPI1010725A2 (pt) * | 2009-06-12 | 2016-03-15 | Evonik Rohmax Additives Gmbh | fluido tendo índice de viscosidade melhorado. |
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- 2017-10-27 CN CN201780067603.5A patent/CN109923195B/zh active Active
- 2017-10-27 RU RU2019116232A patent/RU2747727C2/ru active
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- 2017-10-27 CA CA3042119A patent/CA3042119A1/fr not_active Abandoned
- 2017-10-27 WO PCT/EP2017/077605 patent/WO2018083027A1/fr unknown
- 2017-10-27 SG SG11201903781QA patent/SG11201903781QA/en unknown
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RU2747727C2 (ru) | 2021-05-13 |
SG11201903781QA (en) | 2019-05-30 |
WO2018083027A1 (fr) | 2018-05-11 |
RU2019116232A3 (fr) | 2020-12-03 |
KR102455761B1 (ko) | 2022-10-19 |
KR20190080918A (ko) | 2019-07-08 |
CN109923195B (zh) | 2022-10-11 |
JP6890658B2 (ja) | 2021-06-18 |
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