EP2389427A1 - Composition hydraulique présentant des propriétés améliorées à l'usure - Google Patents
Composition hydraulique présentant des propriétés améliorées à l'usureInfo
- Publication number
- EP2389427A1 EP2389427A1 EP10701963A EP10701963A EP2389427A1 EP 2389427 A1 EP2389427 A1 EP 2389427A1 EP 10701963 A EP10701963 A EP 10701963A EP 10701963 A EP10701963 A EP 10701963A EP 2389427 A1 EP2389427 A1 EP 2389427A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oil
- lubricating
- group
- fatty
- metal
- 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.)
- Withdrawn
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 171
- 230000001050 lubricating effect Effects 0.000 claims abstract description 91
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000011593 sulfur Substances 0.000 claims abstract description 55
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 54
- 239000003607 modifier Substances 0.000 claims abstract description 53
- 238000000034 method Methods 0.000 claims abstract description 35
- 239000003921 oil Substances 0.000 claims description 111
- -1 glycerol ester Chemical class 0.000 claims description 66
- 239000012530 fluid Substances 0.000 claims description 55
- 229910052751 metal Inorganic materials 0.000 claims description 45
- 239000002184 metal Substances 0.000 claims description 45
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 43
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 27
- 239000003112 inhibitor Substances 0.000 claims description 27
- 150000001412 amines Chemical class 0.000 claims description 26
- 239000002270 dispersing agent Substances 0.000 claims description 25
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 24
- 239000000194 fatty acid Substances 0.000 claims description 24
- 229930195729 fatty acid Natural products 0.000 claims description 24
- 239000003599 detergent Substances 0.000 claims description 22
- 239000003963 antioxidant agent Substances 0.000 claims description 21
- 238000005260 corrosion Methods 0.000 claims description 19
- 230000007797 corrosion Effects 0.000 claims description 19
- 230000003078 antioxidant effect Effects 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 150000004665 fatty acids Chemical class 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000007859 condensation product Substances 0.000 claims description 12
- 229920013639 polyalphaolefin Polymers 0.000 claims description 12
- 229920000768 polyamine Polymers 0.000 claims description 12
- 229920000642 polymer Polymers 0.000 claims description 11
- 150000001735 carboxylic acids Chemical class 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 239000002518 antifoaming agent Substances 0.000 claims description 6
- 239000006078 metal deactivator Substances 0.000 claims description 6
- 229920005862 polyol Polymers 0.000 claims description 6
- 239000010724 circulating oil Substances 0.000 claims description 5
- 150000003077 polyols Chemical class 0.000 claims description 5
- 150000008064 anhydrides Chemical class 0.000 claims description 4
- 229920000193 polymethacrylate Polymers 0.000 claims description 4
- 230000002829 reductive effect Effects 0.000 claims description 4
- 239000010723 turbine oil Substances 0.000 claims description 4
- 150000007942 carboxylates Chemical class 0.000 claims description 2
- 150000002194 fatty esters Chemical class 0.000 claims description 2
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 claims description 2
- IMSODMZESSGVBE-UHFFFAOYSA-N 2-Oxazoline Chemical compound C1CN=CO1 IMSODMZESSGVBE-UHFFFAOYSA-N 0.000 claims 1
- 150000002118 epoxides Chemical class 0.000 claims 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims 1
- 235000019198 oils Nutrition 0.000 description 100
- 239000000654 additive Substances 0.000 description 36
- 125000004432 carbon atom Chemical group C* 0.000 description 26
- 150000002148 esters Chemical class 0.000 description 20
- 230000000996 additive effect Effects 0.000 description 19
- 229910052725 zinc Inorganic materials 0.000 description 18
- 239000011701 zinc Substances 0.000 description 18
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 17
- 150000001336 alkenes Chemical class 0.000 description 17
- 238000012360 testing method Methods 0.000 description 17
- 239000002253 acid Substances 0.000 description 16
- 150000003839 salts Chemical class 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 15
- 239000000376 reactant Substances 0.000 description 13
- XDOFQFKRPWOURC-UHFFFAOYSA-N 16-methylheptadecanoic acid Chemical compound CC(C)CCCCCCCCCCCCCCC(O)=O XDOFQFKRPWOURC-UHFFFAOYSA-N 0.000 description 12
- 239000004034 viscosity adjusting agent Substances 0.000 description 12
- RZRNAYUHWVFMIP-KTKRTIGZSA-N 1-oleoylglycerol Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(O)CO RZRNAYUHWVFMIP-KTKRTIGZSA-N 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 11
- KZNICNPSHKQLFF-UHFFFAOYSA-N dihydromaleimide Natural products O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 11
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical class C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 11
- RZRNAYUHWVFMIP-HXUWFJFHSA-N glycerol monolinoleate Natural products CCCCCCCCC=CCCCCCCCC(=O)OC[C@H](O)CO RZRNAYUHWVFMIP-HXUWFJFHSA-N 0.000 description 11
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 11
- 150000007513 acids Chemical class 0.000 description 10
- 125000000217 alkyl group Chemical group 0.000 description 10
- 239000000178 monomer Substances 0.000 description 10
- 150000002924 oxiranes Chemical class 0.000 description 10
- 239000002904 solvent Substances 0.000 description 10
- 125000004185 ester group Chemical group 0.000 description 9
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 8
- 239000000314 lubricant Substances 0.000 description 8
- 239000002480 mineral oil Substances 0.000 description 8
- 229920002367 Polyisobutene Polymers 0.000 description 7
- 239000002585 base Substances 0.000 description 7
- 239000011575 calcium Substances 0.000 description 7
- 229910052791 calcium Inorganic materials 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 235000010446 mineral oil Nutrition 0.000 description 7
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 6
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 6
- 239000002199 base oil Substances 0.000 description 6
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 6
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- 229920000098 polyolefin Polymers 0.000 description 6
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 6
- 229960002317 succinimide Drugs 0.000 description 6
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 5
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 5
- 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
- 125000003342 alkenyl group Chemical group 0.000 description 5
- 235000010338 boric acid Nutrition 0.000 description 5
- 229960002645 boric acid Drugs 0.000 description 5
- 239000000839 emulsion Substances 0.000 description 5
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 150000002462 imidazolines Chemical class 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 5
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 5
- 235000021317 phosphate Nutrition 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000010689 synthetic lubricating oil Substances 0.000 description 5
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 5
- 239000001993 wax Substances 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 4
- 239000004327 boric acid Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 4
- 239000003085 diluting agent Substances 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 4
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 description 4
- 229940113162 oleylamide Drugs 0.000 description 4
- 230000036961 partial effect Effects 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- 235000011044 succinic acid Nutrition 0.000 description 4
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 3
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 3
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 3
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000005642 Oleic acid Substances 0.000 description 3
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical class OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 229920002845 Poly(methacrylic acid) Polymers 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 150000001408 amides Chemical class 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 229910052788 barium Inorganic materials 0.000 description 3
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 3
- 239000012612 commercial material Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 150000002314 glycerols Chemical class 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 3
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- 239000011630 iodine Substances 0.000 description 3
- 229910052740 iodine Inorganic materials 0.000 description 3
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 3
- 239000010699 lard oil Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000010688 mineral lubricating oil Substances 0.000 description 3
- AFFLGGQVNFXPEV-UHFFFAOYSA-N n-decene Natural products CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 3
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- 235000015112 vegetable and seed oil Nutrition 0.000 description 3
- 239000008158 vegetable oil Substances 0.000 description 3
- LPEBYPDZMWMCLZ-CVBJKYQLSA-L zinc;(z)-octadec-9-enoate Chemical class [Zn+2].CCCCCCCC\C=C/CCCCCCCC([O-])=O.CCCCCCCC\C=C/CCCCCCCC([O-])=O LPEBYPDZMWMCLZ-CVBJKYQLSA-L 0.000 description 3
- VQOXUMQBYILCKR-UHFFFAOYSA-N 1-Tridecene Chemical compound CCCCCCCCCCCC=C VQOXUMQBYILCKR-UHFFFAOYSA-N 0.000 description 2
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- ADOBXTDBFNCOBN-UHFFFAOYSA-N 1-heptadecene Chemical compound CCCCCCCCCCCCCCCC=C ADOBXTDBFNCOBN-UHFFFAOYSA-N 0.000 description 2
- GQEZCXVZFLOKMC-UHFFFAOYSA-N 1-hexadecene Chemical compound CCCCCCCCCCCCCCC=C GQEZCXVZFLOKMC-UHFFFAOYSA-N 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
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- PJLHTVIBELQURV-UHFFFAOYSA-N 1-pentadecene Chemical compound CCCCCCCCCCCCCC=C PJLHTVIBELQURV-UHFFFAOYSA-N 0.000 description 2
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- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 2
- 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 2
- BNGLZYYFFZFNDJ-UHFFFAOYSA-N 2-(2-heptadec-1-enyl-4,5-dihydroimidazol-1-yl)ethanol Chemical compound CCCCCCCCCCCCCCCC=CC1=NCCN1CCO BNGLZYYFFZFNDJ-UHFFFAOYSA-N 0.000 description 2
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 description 2
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- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- CCCMONHAUSKTEQ-UHFFFAOYSA-N octadec-1-ene Chemical compound CCCCCCCCCCCCCCCCC=C CCCMONHAUSKTEQ-UHFFFAOYSA-N 0.000 description 2
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- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
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- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
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- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
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- 150000003141 primary amines Chemical class 0.000 description 1
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 description 1
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- 239000010703 silicon Substances 0.000 description 1
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- 239000010802 sludge Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
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- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000001593 sorbitan monooleate Substances 0.000 description 1
- 229940035049 sorbitan monooleate Drugs 0.000 description 1
- 235000011069 sorbitan monooleate Nutrition 0.000 description 1
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- 239000003549 soybean oil Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 150000001911 terphenyls Chemical class 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- JZALLXAUNPOCEU-UHFFFAOYSA-N tetradecylbenzene Chemical class CCCCCCCCCCCCCCC1=CC=CC=C1 JZALLXAUNPOCEU-UHFFFAOYSA-N 0.000 description 1
- JYKSTGLAIMQDRA-UHFFFAOYSA-N tetraglycerol Chemical compound OCC(O)CO.OCC(O)CO.OCC(O)CO.OCC(O)CO JYKSTGLAIMQDRA-UHFFFAOYSA-N 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- MBYLVOKEDDQJDY-UHFFFAOYSA-N tris(2-aminoethyl)amine Chemical compound NCCN(CCN)CCN MBYLVOKEDDQJDY-UHFFFAOYSA-N 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 150000003738 xylenes Chemical class 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- 229940006486 zinc cation Drugs 0.000 description 1
- 150000003752 zinc compounds Chemical class 0.000 description 1
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Classifications
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- C10M169/04—Mixtures of base-materials and additives
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- C10M129/40—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms monocarboxylic
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- C10M2203/1025—Aliphatic fractions 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
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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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/043—Ammonium or amine salts 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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/045—Metal containing thio derivatives
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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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/047—Thioderivatives not containing metallic elements
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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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/049—Phosphite
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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
- 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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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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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
- C10N2030/24—Emulsion properties
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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
- C10N2030/40—Low content or no content compositions
- C10N2030/43—Sulfur free or low sulfur content 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
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/08—Hydraulic fluids, e.g. brake-fluids
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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
- C10N2040/135—Steam engines or turbines
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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
- C10N2060/00—Chemical after-treatment of the constituents of the lubricating composition
- C10N2060/14—Chemical after-treatment of the constituents of the lubricating composition by boron or a compound containing boron
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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
- C10N2070/00—Specific manufacturing methods for lubricant compositions
- C10N2070/02—Concentrating of additives
Definitions
- the present invention relates to methods of lubricating a mechanical device by using a lubricating composition that contains a friction modifier and supplies improved antiwear performance.
- the invention further provides the lubricating compositions used therein.
- a metal containing antiwear agent such as a zinc containing antiwear agent
- a lubricating composition suitable for a hydraulic system circulating oil or another industrial oil.
- Such agents may form deposits such as resins, sludge and varnish in the hydraulic system. These deposits impair the performance of the hydraulic systems by causing valve sticking and unresponsive control. Additionally, the cleaning of these systems is difficult since the deposits are difficult to remove without mechanical abrasion.
- US Patent 5,262,073 discloses a lubricating composition containing a zinc dispersant, 0.3 to 1 wt % of calcium nonyl di-naphthalene synthetic sulfonate detergent and 0.09 to 0.85 wt % of calcium alkylphenate.
- US Patent 6,677,281 discloses a lubricating composition containing a metal sulfonate, an ashless alkenyl succinimide and a borated polyolefin dispersant.
- US Patent 4,466,894 discloses a composition containing metal salts of phosphorus thio-alcohols, a sulfurized phenate, and a benzotriazole.
- the invention provides a method for lubricating a mechanical device requiring industrial fluids, hydraulic fluids, turbine oils, circulating oils, or combinations thereof, the method comprising: (I) supplying the mechanical device with a lubricating composition comprising: (a) an oil of lubricating viscosity wherein the oil is substantially free of sulfur; and (b) a friction modifier; resulting in reduced wear, reduced friction, or combinations thereof within the device.
- Component (a) may comprise a group II oil, a group III oil, a gas-to- liquid oil, a poly-alpha-olefin, or combinations thereof.
- the lubricating composition may further comprise a dispersant, an antioxidant, a corrosion inhibitor, a carboxylic acid or anhydride, a detergent, an antiwear agent, an antifoam, a metal deactivator, a demulsifier, a detergent stabilizer, or combinations thereof.
- the invention further provides for the methods described above where the lubricating composition further comprises a metal di-hydrocarbyl- substituted dithiophosphate, wherein at least one hydrocarbyl group is a branched primary hydrocarbyl group.
- the invention further provides for the methods described above where the lubricating composition further comprises a metal-free di- hydrocarbyl-substituted dithiophosphate, wherein at least one hydrocarbyl group is a branched primary hydrocarbyl group.
- the invention further provides for the lubricating composition being prepared by adding the friction modifiers described herein as an aftermarket treatment to the oil of lubricating viscosity and/or a formulated hydraulic fluid.
- the invention also provides for a lubricating composition comprising: (a) an oil of lubricating viscosity wherein the oil is substantially free of sulfur; (b) a friction modifier; (c) a dispersant; (d) a metal di- hydrocarbyl-substituted dithiophosphate, wherein at least one hydrocarbyl group is a branched primary hydrocarbyl group; and (e) optionally a viscosity index improving polymer.
- the invention also provides for a lubricating composition
- a lubricating composition comprising: (a) an oil of lubricating viscosity wherein the oil is substantially free of sulfur; (b) a friction modifier; (c) a metal-free di-hydrocarbyl- substituted dithiophosphate, wherein at least one hydrocarbyl group is a branched primary hydrocarbyl group; (d) an antioxidant; and (e) optionally a viscosity index improving polymer.
- the present invention provides a lubricating composition and method as defined above.
- the term 'substantially free of with regards to water means the lubricating composition contains not more than contaminant amounts of water, for example, water present at less than about 1 wt %, preferably less than about 0.5 wt %, or even about 0.2 wt % or less of the lubricating composition.
- extraneous water may be incorporated into the system. The extraneous water is not included in the contaminant amounts of water disclosed above.
- the lubricating composition is substantially free of, to the absence of water. In one embodiment the lubricating composition is not an oil-in water emulsion.
- the methods of the invention provide a means for improving the antiwear performance (or wear performance) of a hydraulic fluid.
- the invention provides a means for improving the antiwear performance of a low sulfur hydraulic fluid without adversely impacting the demulsibility of the fluid.
- the invention provides a means for improving the antiwear performance of a low sulfur hydraulic fluid containing a dispersant.
- the dispersant may contain metal, such as zinc.
- the hydraulic fluids may be based on Group II or similar oils. Any of the embodiments described above may result in hydraulic fluid compositions which are zinc free, metal free, or ashless (i.e., does not contain metal in amounts greater than those associated with contaminant amounts).
- any of the embodiments described above may be free of viscosity modifiers, while in another set of embodiments, any of embodiments described above may further comprise a viscosity modifier. Oils of Lubricating Viscosity
- the lubricating composition comprises an oil of lubricating viscosity.
- oils include natural and synthetic oils, oil derived from hydro- cracking, hydrogenation, and hydro-finishing, unrefined, refined and re-refined oils and mixtures thereof.
- Unrefined oils are those obtained directly from a natural or synthetic source generally without (or with little) further purification treatment.
- Refined oils are similar to the unrefined oils except they have been further treated in one or more purification steps to improve one or more properties. Purification techniques are known in the art and include solvent extraction, distillation, acid or base extraction, filtration, percolation and the like.
- Re-refined oils are also known as reclaimed or reprocessed oils, and are obtained by processes similar to those used to obtain refined oils and often are additionally processed by techniques directed to removal of spent additives and oil breakdown products.
- Natural oils useful in making the inventive lubricants include animal oils, vegetable oils (e.g., castor oil, lard oil), mineral lubricating oils such as liquid petroleum oils and solvent-treated or acid-treated mineral lubricating oils of the paraffinic, naphthenic or mixed paraffinic-naphthenic types and oils derived from coal or shale or mixtures thereof.
- animal oils e.g., castor oil, lard oil
- mineral lubricating oils such as liquid petroleum oils and solvent-treated or acid-treated mineral lubricating oils of the paraffinic, naphthenic or mixed paraffinic-naphthenic types and oils derived from coal or shale or mixtures thereof.
- Synthetic lubricating oils are useful and include hydrocarbon oils such as polymerized and interpolymerized olefins (e.g., polybutylenes, polypropylenes, propylene isobutylene copolymers); poly(l-hexenes), poly(l- octenes), poly(l-decenes), and mixtures thereof; alkyl-benzenes (e.g.
- dodecylbenzenes tetradecylbenzenes, dinonylbenzenes, di-(2-ethylhexyl)- benzenes); polyphenyls (e.g., biphenyls, terphenyls, alkylated polyphenyls); alkylated diphenyl ethers and alkylated diphenyl sulfides and the derivatives, analogs and homo logs thereof or mixtures thereof.
- polyphenyls e.g., biphenyls, terphenyls, alkylated polyphenyls
- alkylated diphenyl ethers and alkylated diphenyl sulfides and the derivatives, analogs and homo logs thereof or mixtures thereof.
- Other synthetic lubricating oils include liquid esters of phosphorus- containing acids (e.g., tricresyl phosphate, trioctyl phosphate, and the diethyl ester of decane phosphonic acid), and polymeric tetrahydrofurans.
- Synthetic oils may be produced by Fischer-Tropsch reactions and typically may be hydroisomerised Fischer-Tropsch hydrocarbons or waxes. In one embodiment oils may be prepared by a Fischer-Tropsch gas-to-liquid synthetic procedure as well as other gas-to-liquid oils.
- Oils of lubricating viscosity may also be defined as specified in the American Petroleum Institute (API) Base Oil Interchangeability Guidelines.
- the five base oil groups are as follows: Group I (sulfur content >0.03 wt %, and/or ⁇ 90 wt % saturates, viscosity index 80-120); Group II (sulfur content ⁇ 0.03 wt %, and >90 wt % saturates, viscosity index 80-120); Group III (sulfur content ⁇ 0.03 wt %, and >90 wt % saturates, viscosity index >120); Group IV (all polyalphaolefins (PAOs)); and Group V (all others not included in Groups I, II, III, or IV).
- Group I sulfur content >0.03 wt %, and/or ⁇ 90 wt % saturates, viscosity index 80-120
- Group II sulfur content ⁇ 0.03 wt %, and >90 wt % saturates, viscosity index 80-120
- Group III sulfur content
- the oil of lubricating viscosity comprises an API Group I, Group II, Group III, Group IV, Group V oil or mixtures thereof. Often the oil of lubricating viscosity is an API Group I, Group II, Group III, Group IV oil or mixtures thereof. Alternatively the oil of lubricating viscosity is often an API Group I, Group II, Group III oil or mixtures thereof.
- Oils suitable for use in the invention are substantially free of sulfur, which means that the oil component contains less than 3000 ppm of sulfur, less than 1500 ppm of sulfur, or less than 1000 ppm of sulfur. In other embodiments, the oil component may contain less than 500 ppm of sulfur, less than 300 ppm of sulfur, or less than 150 ppm of sulfur. In some embodiments these limits on sulfur content may be applied to the overall lubricating composition, which may include one or more additives.
- Oils suitable for use in the invention may have (i) a sulfur content of less than 0.03 % wt, (ii) contain at least 90 % wt saturates (iii) have a viscosity index of at least 120, or (iv) combinations thereof.
- individual oils used in the composition may not meet any of these requirements, but the total oil component, which may be a mixture of two or more oils, does meet at least one of the requirements described.
- the oils are Group II, Group III, or Group IV oils.
- the compositions of the invention are free of Group I oils.
- the compositions of the invention contain less than 10 % wt Group I oils.
- the invention is focused on improving the wear properties of low sulfur hydraulic fluids.
- Hydraulic fluids containing Group I base oils typically contain relatively high sulfur levels and so inherently have better wear properties such that the use of the invention is not needed.
- low sulfur hydraulic fluids, such as those containing Group II base oils and similar low sulfur oils have worse wear properties.
- the compositions of the invention address this problem and improve the wear properties of such fluids. In some embodiments this improvement is achieved without negatively impacting the demulsibility of the fluid.
- Oils of lubricating viscosity include natural or synthetic lubricating oils and mixtures thereof. Natural oils include animal oils, mineral lubricating oils, and solvent or acid treated mineral oils. Synthetic lubricating oils include hydrocarbon oils (polyalpha-olefins), halo-substituted hydrocarbon oils, alkylene oxide polymers, esters of dicarboxylic acids and polyols, esters of phosphorus-containing acids, polymeric tetrahydrofurans and silicon-based oils.
- the oil of lubricating viscosity is a hydro-treated mineral oil or a synthetic lubricating oil, such as a polyolefin.
- oils of lubricating viscosity include XHVI base stocks, such as IOON isomerized wax base stock (0.01% sulfur/ 141 VI), 120N isomerized wax base stock (0.01% sulfur/ 149 VI), 170N isomerized wax base stock (0.01% sulfur/ 142 VI), and 250N isomerized wax base stock (0.01% sulfur/ 146 VI); refined base stocks, such as 250N solvent refined paraffinic mineral oil (0.16% sulfur/89 VI), 200N solvent refined naphthenic mineral oil (0.2% sulfur/ 60 VI), IOON solvent refined/ hydro-treated paraffinic mineral oil (0.01% sulfur/98 VI), 240N solvent refined/ hydro-treated paraffinic mineral oil (0.01% sulfur/ 98 VI), 80N solvent refined/ hydro-treated paraffinic mineral oil (0.08% sulfur/ 127 VI), and 150N solvent refined/ hydro-treated paraffinic mineral oil (0.17% sulfur/ 127 VI).
- XHVI base stocks such as IOON isomerized wax base stock (0.01% sulfur/ 141 VI
- oils of lubricating viscosity occurs in U.S. Patent 4,582,618 (column 2, line 37 through column 3, line 63, inclusive).
- the oil used in the compositions of the invention include ChevronTM RLOP, MotivaTM Star and Petro CanadaTM Group II oils, as well as mixtures thereof.
- the oil has a sulfur content of 0 to 50 ppm and/or a viscosity index of up to 130. Suitable oils may be mixtures of two or more oils, including oils with different sulfur contents, viscosity indexes, and our viscosities.
- the oil of lubricating viscosity is a polyalpha- olefin (PAO).
- the polyalpha-olefins are derived from monomers having from 4 to 30, or from 4 to 20, or from 6 to 16 carbon atoms.
- useful PAOs include those derived from decene. These PAOs may have a viscosity from 3 to 150, or from 4 to 100, or from 4 to 8 cSt at 100 0 C. Examples of PAOs include 4 cSt polyolefins, 6 cSt polyolefins, 40 cSt polyolefins and 100 cSt polyalphaolefins.
- the lubricating composition contains an oil of lubricating viscosity which has an iodine value of less than 9.
- Iodine value is determined according to ASTM D-460.
- the oil has an iodine value less than 8, or less than 6, or less than 4.
- the oil of lubricating viscosity is selected to provide lubricating compositions with a Kinematic viscosity (KV), as measured by D445, of at least 3.5 cSt, or at least 4.0 cSt at 100 0 C.
- the lubricating compositions have an SAE gear viscosity grade of at least SAE 75W.
- the lubricating compositions of the present invention have a KV of 30 to 60 cSt at 4OC, or 35 to 46 cSt at 4OC, or about 46 cSt at 4OC.
- Such embodiments may also have a viscosity index (VI) of 50 to 200, 50 to 150, 75 to 125, or about 100.
- the lubricating composition may also have a so-called multigrade rating such as SAE 75W-80, 75W-90, 75W-140, 80W-90, 80W-140, 85W-90, or 85W-140.
- Multigrade lubricants may include a viscosity improver which is formulated with the oil of lubricating viscosity to provide the above lubricant grades.
- Useful viscosity improvers include but are not limited to polyolefms, such as ethylene-propylene copolymers, or polybutylene rubbers, including hydrogenated rubbers, such as styrene-butadiene or styrene-isoprene rubbers; or poly aery lates, including polymethacrylates.
- the viscosity improver is a polyolefin or polymethacrylate.
- Viscosity improvers available commercially include AcryloidTM viscosity improvers previously available from Rohm & Haas which have been integrated into the ViscoplexTM family; ShellvisTM rubbers available from Shell Chemical; TrileneTM polymers, such as TrileneTM CP-40, available commercially from Chemtura, and Lubrizol 3100 series and 8400 series polymers, such as Lubrizol ® 3174 available from The Lubrizol Corporation.
- AcryloidTM viscosity improvers previously available from Rohm & Haas which have been integrated into the ViscoplexTM family
- ShellvisTM rubbers available from Shell Chemical
- TrileneTM polymers such as TrileneTM CP-40, available commercially from Chemtura
- Lubrizol 3100 series and 8400 series polymers such as Lubrizol ® 3174 available from The Lubrizol Corporation.
- the lubricating compositions of the present invention have a KV of 20 to 40 cSt at 4OC, or 25 to 35 cSt at 4OC, or about 32 cSt at 4OC. Such embodiments may also have a viscosity index (VI) of greater than 200, greater than 300, greater than 400, or about 425. [0038] In still other embodiments, the lubricating compositions of the present invention may have a KV of 20 to 100 cSt at 4OC and a VI of 80 to 450 or a KV of 25 to 55 100 cSt at 4OC and a VI of 140 to 180.
- the oil of lubricating viscosity includes at least one ester of a dicarboxylic acid.
- the esters containing from 4 to 30, preferably from 6 to 24, or from 7 to 18 carbon atoms in each ester group.
- dicarboxylic acids include glutaric, adipic, pimelic, suberic, azelaic and sebacic.
- ester groups include hexyl, octyl, decyl, dodecyl and tridecyl ester groups.
- the ester groups include linear as well as branched ester groups such as iso arrangements of the ester alkyl group.
- a particularly useful ester of a dicarboxylic acid is diisodecyl azelate.
- the oil of lubricating viscosity is substantially free or even free of esters or any one or more of the specific esters described above.
- the oil of lubricating viscosity may be present in ranges from 60 to 99.9 wt %, or from 65 to 95 wt %, or from 70 to 85 wt %. In other embodiments the oil of lubricating viscosity is present from 90 to 99.9 wt%, 95 to 99.9 wt %, or 98 to 99.5 wt %.
- the lubricating composition may be in the form of a concentrate and/or a fully formulated lubricant.
- the lubricating composition of the present invention is in the form of a concentrate (which may be combined with additional oil to form, in whole or in part, a finished lubricant), the ratio of the additives (a) to (d) to the oil of lubricating viscosity and/or to diluent oil include the ranges of about 1 :99 to about 99: 1 by weight, or from about 80:20 to about 10:90 by weight. Friction Modifier
- the friction modifiers used in the methods and compositions of the present invention may include those additives generally known as friction modifiers and/or lubricity aids.
- a useful list of such additives is included in U.S. Pat. No. 4,792,410.
- U.S. Patent 5,110,488 discloses metal salts of fatty acids and especially zinc salts, useful as friction modifiers. Fatty acids are also useful friction modifiers.
- a list of friction modifiers suitable for invention includes: (i) fatty phosphites and/or phosphonates; (ii) fatty acid amides; (iii) fatty epoxides; (iv) borated fatty epoxides; (v) fatty amines; (vi) glycerol esters; (vii) borated glycerol esters; (viii) alkoxylated fatty amines; (ix) borated alkoxylated fatty amines; (x) metal salts of fatty acids; (xi) sulfurized olefins; (xii) fatty imidazolines; (xiii) condensation products of carboxylic acids or equivalents and polyalkylene-polyamines; (xiv) metal salts of alkyl salicylates; (xv) amine salts of alkylphosphoric acids; (xvi) fatty esters; (xvii) condensation products of carboxylic acids or equivalents with poly
- (i) includes components generally of the formulas: (RO) 2 PHO; (RO)(HO)PHO; and P(OR)(OR)(OR).
- R is conventionally referred to as an alkyl group but may also be hydrogen. It is, of course, possible that the alkyl group is actually alkenyl and thus the terms "alkyl” and “alkylated,” as used herein, will embrace other than saturated alkyl groups within the component.
- the component should have sufficient hydrocarbyl groups to render it substantially oleophilic. In some embodiments the hydrocarbyl groups are substantially un- branched.
- the component contains 8 to 24 carbon atoms in each of R groups.
- the component may be a fatty phosphite containing 12 to 22 carbon atoms in each of the fatty radicals, or 16 to 20 carbon atoms.
- the fatty phosphite can be formed from oleyl groups, thus having 18 carbon atoms in each fatty radical.
- the (iv) borated fatty epoxides are known from Canadian Patent No. 1,188,704. These oil-soluble boron- containing compositions are prepared by reacting, at a temperature from 80 0 C to 250 0 C, boric acid or boron trioxide with at least one fatty epoxide having the formula: O
- the borated fatty epoxides can be characterized by the method for their preparation which involves the reaction of two materials.
- Reagent A can be boron trioxide or any of the various forms of boric acid including metaboric acid (HBO 2 ), orthoboric acid (H 3 BO 3 ) and tetraboric acid (H 2 B 4 O 7 ).
- Reagent B can be at least one fatty epoxide having the above formula.
- each of the R groups is most often hydrogen or an aliphatic radical with at least one being a hydrocarbyl or aliphatic radical containing at least 6 carbon atoms.
- the molar ratio of reagent A to reagent B is generally 1 :0.25 to 1 :4. Ratios of 1 : 1 to 1 :3 are preferred, with about 1 :2 being an especially preferred ratio.
- the borated fatty epoxides can be prepared by merely blending the two reagents and heating them at temperature of 80° to 250 0 C, preferably 100° to 200 0 C, for a period of time sufficient for reaction to take place. If desired, the reaction may be effected in the presence of a substantially inert, normally liquid organic diluent. During the reaction, water is evolved and may be removed by distillation.
- the (iii) non-borated fatty epoxides corresponding to "Reagent B" above, are also useful as friction modifiers.
- Borated amines are generally known from U.S. Patent 4,622,158.
- Borated amine friction modifiers including (ix) borated alkoxylated fatty amines
- the amine can be a simple fatty amine or hydroxy containing tertiary amines.
- the borated amines can be prepared by adding the boron reactant, as described above, to an amine reactant and heating the resulting mixture at a 50° to 300 0 C, preferably 100 0 C to 25O 0 C or 13O 0 C to 18O 0 C, with stirring.
- ETHOMEEN commercial alkoxylated fatty amines known by the trademark "ETHOMEEN” and available from Akzo Nobel.
- Representative examples of these ETHOMEENTM materials is ETHOMEENTM C/ 12 (bis [2-hydroxy ethyl] -coco- amine); ETHOMEENTM C/20 (polyoxyethylene[10]cocoamine);
- ETHOMEENTM S/12 bis[2-hydroxyethyl]soyamine
- ETHOMEENTM T/12 bis[2-hydroxyethyl]-tallow-amine
- ETHOMEENTM T/15 polyoxyethylene- [5]tallowamine
- ETHOMEENTM 0/12 bis[2-hydroxyethyl]oleyl-amine
- ETHOMEENTM 18/12 bis[2— hydroxyethyl]octadecylamine
- ETHOMEENTM 18/25 polyoxyethylene[15]octadecylamine.
- Fatty amines and ethoxylated fatty amines are also described in U.S. Patent 4,741 ,848.
- Dihydroxy ethyl tallowamine (commercially sold as ENT- 12TM) is included in these types of amines.
- the (viii) alkoxylated fatty amines, and (v) fatty amines themselves (such as oleylamine and dihydroxy ethyl tallowamine) are generally useful as friction modifiers in this invention. Such amines are commercially available.
- Both borated and unborated fatty acid esters of glycerol can be used as friction modifiers.
- the (vii) borated fatty acid esters of glycerol are prepared by borating a fatty acid ester of glycerol with boric acid with removal of the water of reaction.
- each boron will react with from 1.5 to 2.5 hydroxyl groups present in the reaction mixture.
- the reaction may be carried out at a temperature in the range of 60 0 C to 135°C, in the absence or presence of any suitable organic solvent such as methanol, benzene, xylenes, toluene, or oil.
- suitable organic solvent such as methanol, benzene, xylenes, toluene, or oil.
- the (vi) fatty acid esters of glycerol themselves can be prepared by a variety of methods well known in the art. Many of these esters, such as glycerol monooleate and glycerol tallowate, are manufactured on a commercial scale.
- esters useful are oil-soluble and are preferably prepared from C8 to C22 fatty acids or mixtures thereof such as are found in natural products and as are described in greater detail below.
- Fatty acid monoesters of glycerol are preferred, although, mixtures of mono- and diesters may be used.
- commercial glycerol monooleate may contain a mixture of 45% to 55% by weight monoester and 55% to 45% diester.
- Fatty acids can be used in preparing the above glycerol esters; they can also be used in preparing their (x) metal salts, (ii) amides, and (xii) imidazolines, any of which can also be used as friction modifiers.
- Preferred fatty acids are those containing 10 to 24 carbon atoms, or 12 to 18.
- the acids can be branched or straight-chain, saturated or unsaturated. In some embodiments the acids are straight-chain acids. In other embodiments the acids are branched.
- Suitable acids include decanoic, oleic, stearic, isostearic, palmitic, myristic, palmitoleic, linoleic, lauric, and linolenic acids, and the acids from the natural products tallow, palm oil, olive oil, peanut oil, corn oil, coconut oil and Neat's foot oil.
- a particularly preferred acid is oleic acid.
- Preferred metal salts include zinc and calcium salts. Examples are overbased calcium salts and basic oleic acid-zinc salt complexes, such as zinc oleate, which can be represented by the general formula
- Preferred amides are those prepared by condensation with ammonia or with primary or secondary amines such as ethylamine and diethanolamine.
- Fatty imidazolines are the cyclic condensation product of an acid with a diamine or polyamine such as a polyethylenepolyamine. The imidazolines are generally represented by the structure:
- the friction modifier is the condensation product of a ClO to C24 fatty acid with a polyalkylene polyamine, and in particular, the product of isostearic acid with tetraethylenepentamine.
- the condensation products of carboxylic acids and polyalkyleneamines (xiii) may generally be imidazolines or amides. They may be derived from any of the carboxylic acids described above and any of the polyamines described herein.
- Sulfurized olefins (xi) are well known commercial materials used as friction modifiers.
- a particularly preferred sulfurized olefin is one which is prepared in accordance with the detailed teachings of U.S. Patents 4,957,651 and 4,959,168. Described therein is a co-sulfurized mixture of 2 or more reactants selected from the group consisting of (1) at least one fatty acid ester of a polyhydric alcohol, (2) at least one fatty acid, (3) at least one olefin, and (4) at least one fatty acid ester of a monohydric alcohol.
- Reactant (3), the olefin component comprises at least one olefin.
- This olefin is preferably an aliphatic olefin, which usually will contain 4 to 40 carbon atoms, preferably from 8 to 36 carbon atoms. Terminal olefins, or alpha-olefins, are preferred, especially those having from 12 to 20 carbon atoms. Mixtures of these olefins are commercially available, and such mixtures are contemplated for use in this invention.
- the co-sulfurized mixture of two or more of the reactants is prepared by reacting the mixture of appropriate reactants with a source of sulfur.
- the mixture to be sulfurized can contain 10 to 90 parts of Reactant (1), or 0.1 to 15 parts by weight of Reactant (2); or 10 to 90 parts, often 15 to 60 parts, more often 25 to 35 parts by weight of Reactant (3), or 10 to 90 parts by weight of reactant (4).
- the mixture in the present invention, includes Reactant (3) and at least one other member of the group of reactants identified as reactants (1), (2) and (4).
- the sulfurization reaction generally is effected at an elevated temperature with agitation and optionally in an inert atmosphere and in the presence of an inert solvent.
- the sulfurizing agents useful in the process of the present invention include elemental sulfur, which is preferred, hydrogen sulfide, sulfur halide plus sodium sulfide, and a mixture of hydrogen sulfide and sulfur or sulfur dioxide. Typically often 0.5 to 3 moles of sulfur are employed per mole of olefinic bonds. Sulfurized olefins may also include sulfurized oils such as vegetable oil, lard oil, oleic acid and olefin mixtures. [0055] Metal salts of alkyl salicylates (xiv) include calcium and other salts of long chain (e.g. C12 to C16) alkyl-substituted salicylic acids.
- Amine salts of alkylphosphoric acids include salts of oleyl and other long chain esters of phosphoric acid, with amines as described below.
- Useful amines in this regard are tertiary-aliphatic primary amines, sold under the tradename PrimeneTM.
- the friction modifier is a fatty acid or fatty oil, a metal salt of a fatty acid, a fatty amide, a sulfurized fatty oil or fatty acid, an alkyl phosphate, an alkyl phosphate amine salt; a condensation product of a carboxylic acid and a polyamine, a borated fatty epoxide, a fatty imidazoline, or combinations thereof.
- the friction modifier may be the condensation product of isostearic acid and tetraethylene pentamine, the condensation product of isostearic acid and l-[tris(hydroxymethyl)]methylamine, borated polytetradecyloxirane, zinc oleate, hydroxylethyl-2-heptadecenyl imidazoline, dioleyl hydrogen phosphate, C 14-Cl 8 alkyl phosphate or the amine salt thereof, sulfurized vegetable oil, sulfurized lard oil, sulfurized oleic acid, sulfurized olefins, oleyl amide, glycerol monooleate, soybean oil, or mixtures thereof.
- the friction modifier may be glycerol monooleate, oleylamide, the reaction product of isostearic acid and 2-amino-2- hydroxymethyl-l,3-propanediol, sorbitan monooleate, 9-octadecenoic acid, isostearyl amide, isostearyl monooleate or combinations thereof.
- the amount of friction modifier may be 0.01 to 2 wt % or 0.03 to 1 wt % of the lubricating composition, and in some embodiments is 0.05 to 1.5 wt %, 0.05 to 0.5 wt %, 0.08 to 1 wt %, or 0.075 to 0.3 wt %. In some embodiments, however, the amount of friction modifier is present at less than 0.5 percent or less than 0.2 percent by weight, or present from 0.2 to 0.5 percent.
- the friction modifier is present at more than 500 ppm, more than 1000 ppm, more than 1500 ppm or more than 2000 ppm, but in each of these embodiments the upper limit may be no more than 5000 ppm, no more than 3000 ppm, or no more than 2000 ppm. These ranges may apply to the amounts of individual friction modifier present in the composition or to the total friction modifier component in the compositions, which may include a mixture of two or more friction modifiers. [0061] Many friction modifiers tend to also act as emulsifiers. This is often due to the fact that friction modifiers often have non-polar fatty tails and polar head groups.
- Emulsibility, or rather decreased demulsibility, is a result that is undesirable in hydraulic fluids, where it is desirable for such compositions to remain separate from and not entrain any water with which the fluid may come into contact.
- the friction modifiers of the present invention may be used to improve the antiwear performance of the hydraulic fluid, however in some embodiments care must be taken to avoid using the friction modifier at a level that would negatively impact the demulsibility of the fluid.
- the compositions of the invention may further include additional additives or additive packages. Many of the additives which may be used are described in greater detail below and these additives may be added separately or as an additive package. Additive packages may contain one or more of the additives described herein and may also contain some amount of diluent oil and/or solvent. An additive package may be added to the compositions of the invention such that they are present at 0.2 to 4.0 wt%, 0.5 to 3.0 wt %, or 0.6 to 2.0 wt %.
- compositions of the invention may optionally contain a metal containing dispersant.
- the dispersant may be present in ranges from 0 to 5 wt %, or from 0.05 to 2.5 wt %, or from 0.1 to 1.5 wt %. In different embodiments the metal containing dispersant is present at 0.2 wt %, 0.3 wt %, 0.5 wt %, 0.7 wt %, 0.9 wt %, or 1.1 wt %.
- the metal of the metal containing dispersant comprises zinc, copper, magnesium, barium or calcium. In one embodiment the metal is zinc.
- the dispersant may include N-substituted long chain alkenyl succinimides or long chain alkenyl esters, partial esters or salts thereof.
- N-substituted long chain alkenyl succinimides include polyisobutylene succinimide with number average molecular weight of the polyisobutylene substituent in the range about 350 to about 5000, or about 500 to about 3000.
- the long chain alkenyl esters, partial esters or salts thereof may be prepared by reacting an alkenyl substituted acylating agent (such as a polyisobutylene succinic acid) with a polyol.
- Examples of a suitable polyol include ethylene glycol, propylene glycol, butylene glycol, pentaerythritol, mannitol, sorbitol, glycerol, di- glycerol, tri-glycerol, tetra-glycerol, erythritol, 2-hydroxymethyl-2-methyl-l,3- propanediol (trimethylolethane), 2-ethyl-2-(hydroxymethyl)-l ,3 -propanediol (trimethylolpropane), 1,2,4-hexanetriol and mixtures thereof.
- the succinimide may be prepared from a polyamine.
- Suitable polyamines include alkylenediamine, a polyalkylenepolyamine such as a polyethylenepolyamine, or a mixture thereof.
- Useful examples of polyamines are ethylenedi amine, propylenediamine, 1 ,3-diaminopropane, N- methylethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, tris(2-aminoethyl)amine, and polyethylenepolyamine bottoms (HPAX® amines commercially produced by Dow Chemicals).
- the invention further comprises at least one dispersant derived from polyisobutenyl succinic anhydride, an amine and zinc oxide to form a polyisobutylene succinimide complex or salt with a zinc compound or cation.
- the polyisobutylene succinimide complex with zinc may be used alone or in combination with other dispersants. Methods of preparing polyisobutylene succinimide complex with zinc are described in more detail in US 3,636,603.
- compositions of the invention may also include non-metal containing dispersants. These dispersants can be the N-substituted long chain alkenyl succinimides or long chain alkenyl esters, partial esters thereof described above before the salt formation with the metal takes place. Borated versions and/or other derivatives of any of the dispersants described above may also be used.
- Metal Di-Hydrocarbyl Substituted Dithiophosphate may further comprise a metal dihydrocarbyl dithiophosphate.
- Metal dihydrocarbyl dithiophosphates suitable for use in the invention contain at least one branched hydrocarbyl group.
- the hydrocarbyl dithiophosphate includes those represented by the formula:
- R 1 and R 2 are hydrocarbyl groups or mixtures thereof, with the proviso that at least one of R 1 and R 2 is a branched primary hydrocarbyl group, or mixtures thereof. In one embodiment both R 1 and R 2 are branched primary hydrocarbyl groups.
- Each branched hydrocarbyl group may contain about 3 to about 20, or about 8 to about 16, or about 8 to about 14 carbon atoms.
- suitable branched hydrocarbyl group include 2-ethylhexyl, iso-octyl, iso-nonyl, iso-decyl, iso-dodecyl, iso-pentadecyl, 2-methyl-l-pentyl, isobutyl, 2-propyl-l- decyl or mixtures thereof.
- the branched hydrocarbyl group comprises at least one of 2-ethylhexyl, iso-nonyl, iso-decyl, or mixtures thereof.
- the non-branched group may be linear alkyl or aryl. In one embodiment both R 1 and R 2 are branched.
- M' is a metal, and n is an integer equal to the available valence of M'.
- M' is mono- or di- or tri- valent, in one embodiment divalent and in another embodiment a divalent transition metal.
- M' is zinc.
- M' is calcium.
- M' is barium.
- Examples of a metal hydrocarbyl dithiophosphate include zinc dihydrocarbyl dithiophosphates (often referred to as ZDDP, ZDP or ZDTP).
- the metal dihydrocarbyl dithiophosphate may be present in the lubricating composition in ranges from about 0.01 to about 5 wt %, or from about 0.1 to about 2 wt %, or from about 0.2 to about 1 wt %. In different embodiments the metal dihydrocarbyl dithiophosphate is present at about 0.3 wt %, or about 0.5 wt %, or about 0.7 wt %, or about 0.9 wt %.
- the compositions of the invention may also include non-metal containing dihydrocarbyl dithiophosphates.
- compositions may optionally comprise one or more additives comprising a detergent, an antioxidant, a corrosion inhibitor, or mixtures thereof.
- the lubricant composition optionally further comprises known neutral or overbased detergents i.e. ones prepared by conventional processes known in the art.
- Suitable detergent substrates include, phenates, sulfur containing phenates, sulfonate s, salixarates, salicylates, carboxylic acid, phosphorus acid, mono- and/or di- thiophosphoric acid, alkyl phenol, sulfur coupled alkyl phenol compounds, or saligenins.
- the detergent may be natural or synthetic. In one embodiment the detergent is synthetic.
- the detergent comprises a sulfonate detergent.
- the sulfonate detergent may also have corrosion inhibitor properties.
- the sulfonate detergent of the composition includes compounds represented by the formula:
- R 1 is a hydrocarbyl group in one embodiment containing about 6 to about 40, or from about 8 to about 35, or from about 8 to about 30 carbon atoms;
- A may be independently a cyclic or acyclic divalent or multivalent hydrocarbon group and is typically aromatic;
- M is hydrogen, a valence of a metal ion, an ammonium ion or mixtures thereof; and
- k is an integer of 0 to about 5, for example 0, 1, 2, 3, 4, 5. In one embodiment k is 1 , 2 or 3, in another embodiment 1 or 2 and in another embodiment 2.
- k is 1 and R 1 is a branched alkyl group with about 6 to about 40 carbon atoms. In one embodiment k is 1 and R 1 is a linear alkyl group with about 6 to about 40 carbon atoms.
- R 1 linear alkyl group examples include octyl, nonyl, decyl, undecyl, dodecyl, pentadecyl, hexadecyl, eicosyl, or mixtures thereof.
- M is a valence of a metal ion
- the metal may be monovalent, divalent, trivalent or mixtures of such metals.
- the metal M When monovalent, the metal M includes an alkali metal such as lithium, sodium, or potassium, and when divalent, the metal M includes an alkaline earth metal such as magnesium, calcium or barium. In one embodiment the metal is an alkaline earth metal. In one embodiment the metal is calcium.
- A is cyclic hydrocarbon group
- suitable groups include phenylene or those with fused cyclic groups such as naphthylene, indenylene, indanylene, bicyclopentadienylene or mixtures thereof.
- A comprises a naphthalene ring.
- the detergent is neutral or overbased. In one embodiment the detergent is neutral.
- Examples of a suitable detergent include at least one of calcium dinonyl naphthalene sulfonate, calcium didecyl naphthalene sulfonate, didodecyl naphthalene sulfonate, calcium dipentadecyl naphthalene sulfonate, or mixtures thereof.
- the detergent comprises neutral or slightly overbased calcium dinonyl naphthalene sulfonate, or mixtures thereof.
- the detergent may be present in the lubricating composition in ranges from 0 to about 3 wt %, or from about 0.001 to about 1.5 wt %, or from about 0.01 to about 0.75 wt %.
- the detergent may be present at about 0.08 wt %, or about 0.1 wt %, or about 0.2 wt %, or about 0.4 wt % or about 0.6 wt % of the lubricating composition.
- Antioxidant compounds are known and include alkylated diphenylamines, hindered phenols, molybdenum dithiocarbamates, and mixtures thereof. Suitable antioxidants also include alkylated alpha-phenyl naphthyl amines. Antioxidant compounds may be used alone or in combination with other antioxidants.
- Hindered phenol antioxidants often contain a secondary butyl and/or a tertiary butyl group as a sterically hindering group.
- the phenol group is often further substituted with a hydrocarbyl group and/or a bridging group linking to a second aromatic group.
- suitable hindered phenol antioxidants include 2,6-di-tert-butylphenol, 4-methyl-2,6-di-tert-butylphenol, 4-ethyl-2,6- di-tert-butylphenol, 4-propyl-2,6-di-tert-butylphenol, 4-butyl-2,6-di-tert- butylphenol, or 2,6-di-tert-butylphenol.
- the hindered phenol antioxidant is an ester and may include, e.g., IrganoxTM L-135 from Ciba.
- Suitable examples of molybdenum dithio carbamates which may be used as an antioxidant include commercial materials sold under the trade names such as Vanlube 822TM and MolyvanTM A from R. T. Vanderbilt Co., Ltd., and Adeka Sakura-LubeTM S-IOO, S- 165 and S-600 from Asahi Denka Kogyo K. K and mixtures thereof.
- Suitable alkylated diphenylamines include bis-nonylated diphenylamine, nonyl diphenylamine, octyl diphenylamine, bis-octylated diphenylamine, di-isobutylated diphenylamine, bis-decylated diphenylamine, decyl diphenylamine, bis-styrenated dipenylamine (that is, bis-phenethylated diphenylamine), styrenated dipenylamine (that is, phenethylated diphenylamine), and mixtures thereof.
- the antioxidant may be present in the lubricating composition in ranges from 0 to about 3 wt %, or from about 0.01 to about 1.5 wt %, or from about 0.05 to about 0.8 wt %.
- the lubricating composition optionally further comprises a corrosion inhibitor.
- a corrosion inhibitor include benzotriazoles, 1,2,4-triazoles, benzimidazoles, 2-alkyldithiobenzimidazoles, 2- alkyldithiobenzothiazoles, 2-(N,N-dialkyldithiocarbamoyl)benzothiazoles, 2,5- bis(alkyl-dithio)-l,3,4-thiadiazoles, 2,5-bis(N,N-dialkyldithiocarbamoyl)-l,3,4- thiadiazoles, 2-alkyldithio-5-mercapto thiadiazoles or mixtures thereof.
- the corrosion inhibitor is benzotriazole.
- the corrosion inhibitor is a 2,5-bis(alkyl-dithio)-l ,3,4-thiadiazole.
- the corrosion inhibitor may be used alone or in combination with other corrosion inhibitors.
- Benzotriazoles may contain hydrocarbyl substitutions on at least one of the following ring positions 1- or 2- or 4- or 5- or 6- or 7-.
- the hydrocarbyl groups may contain 1 to about 30, or 1 to about 15, or 1 to about 7 carbon atoms.
- the corrosion inhibitor is tolyltriazole.
- hydrocarbyl benzotriazoles substituted at positions 4- or 5- or 6- or 7- can be further reacted with an aldehyde and a secondary amine.
- Examples of suitable hydrocarbyl benzotriazoles further reacted with an aldehyde and a secondary amine include N,N-bis(heptyl)-ar-methyl-lH- benzotriazole- 1 -methanamine, N,N-bis(nonyl)-ar-methyl- 1 H-benzotriazole- 1 - methanamine, N,N-bis(decyl)-ar-methyl-l H-benzotriazole- 1 -methanamine, N,N-bis(undecyl)-ar-methyl- 1 H-benzotriazole- 1 -methanamine, N ,N- bis(dodecyl)-ar-methyl-l H-benzotriazole- 1 -methanamine, N,N-bis- ethylhexyl)-ar-methyl-l H-benzotriazole- 1 -methanamine and mixtures thereof.
- the corrosion inhibitor is N,N-bis(2-ethylhexyl)-ar-methyl- 1 H-benzotriazole- 1 -methanamine.
- the corrosion inhibitor is 2,5-bis(alkyl-dithio)- 1,3,4-thiadiazoles.
- the alkyl groups of 2,5-bis(alkyl-dithio)-l,3,4-thiadiazoles contains 1 to about 30, or about 2 to about 25, or 4 to about 20, or about 6 to about 16 carbon atoms.
- Examples of suitable 2,5-bis(alkyl-dithio)-l,3,4- thiadiazoles include 2,5-bis(tert-octyldithio)-l,3,4-thiadiazole, 2,5-bis(tert- nonyldithio)-l,3,4-thiadiazole, 2,5-bis(tert-decyldithio)-l,3,4-thiadiazole, 2,5- bis(tert-undecyldithio)-l,3,4-thiadiazole, 2,5-bis(tert-dodecyldithio)-l,3,4- thiadiazole, or mixtures thereof.
- the corrosion inhibitor may be present in ranges from about 0 to about 1.5, or from about 0.0003 to about 1.5, or from about 0.0005 to about 0.5, or from about 0.001 to about 0.1 weight percent of the lubricating composition.
- Viscosity Modifier The lubricating composition optionally further comprises a viscosity modifier.
- (meth)acrylate includes a methacrylate and/or an acrylate.
- Viscosity modifiers (often referred to as viscosity index improvers) suitable for use in the invention include polymeric materials including a styrene-butadiene rubber, an olefin copolymer, a hydrogenated styrene-isoprene polymer, a hydrogenated radical isoprene polymer, a poly(meth)acrylic acid ester, a poly(alkylstyrene), an alkenylaryl conjugated-diene copolymer, an ester of maleic anhydride-styrene copolymer or mixtures thereof.
- polymeric materials including a styrene-butadiene rubber, an olefin copolymer, a hydrogenated styrene-isoprene polymer, a hydrogenated radical isoprene polymer, a poly(meth)acrylic acid ester, a poly(alkylstyrene), an alkenylaryl conjug
- the viscosity modifier is a poly(meth)acrylic acid ester, an olefin copolymer or mixtures thereof.
- Poly(meth)acrylic acid ester viscosity modifiers include copolymers of (a) a (meth)acrylic acid ester containing 9 to 30 carbons in the ester group, (b) a (meth)acrylic acid ester containing 7 to 12 carbons in the ester group wherein the ester group contains a 2-(C 1-4 alkyl)-substituent and optionally (c) at least one monomer including a (meth)acrylic acid ester containing from 2 to 8 carbon atoms in the ester group and which is different from the (meth)acrylic acid esters used in (a) and (b) above.
- the (meth)acrylic acid esters is derived from a methacrylate.
- Viscosity modifiers may be derived from an olefin copolymer.
- the olefin copolymer includes those with a backbone containing 2 to 4 different olefin monomers, in one embodiment 2 to 3 different olefin monomers and in yet another embodiment 2 different olefin monomers.
- the olefin monomers include 2 to 20, in one embodiment 2 to 10, in another embodiment 2 to 6 and in yet another embodiment 2 to 4 carbon atoms.
- the hydrocarbyl group includes an alkyl radical that has a straight chain, a branched chain or mixtures thereof.
- co-monomers examples include propylene, 1-butene, 1-hexene, 1-octene, 4-methyl-l-pentene, 1-decene, 1-dodecene, 1-tridecene, 1-tetradecene, 1-pentadecene, 1-hexadecene, 1-heptadecene, 1-octadecene, 1-nonadecene or mixtures thereof.
- the co-monomer may be 1-butene, propylene or mixtures thereof.
- olefin copolymers examples include ethylene-propylene and ethylene- 1-butene copolymers and mixtures thereof.
- the viscosity modifiers are present on an oil free basis at of 0 wt% to 30 wt %, 0.1 wt% to 30 wt %, 1 wt% to 25 wt %, 3 wt% to 20 wt% or5 wt% to 12 wt% of the composition. In one embodiment the viscosity modifier is present. In one embodiment the viscosity modifier is absent.
- the lubricating composition further comprises at least one of rust inhibitors, foam inhibitors, demulsifiers, pour point depressants or mixtures thereof.
- the total combined amount of foam inhibitors, demulsifiers, pour point depressants may range from 0 to about 10 wt %, or from 0 to about 5 wt %, or from about 0.0001 to about 1 wt % of the lubricating composition.
- Rust inhibitors include amine salts of carboxylic acids, such as octylamine octanoate, condensation products of dodecenyl succinic acid or anhydride or a fatty acid, such as oleic acid with a polyamine, e.g.
- Rust inhibitors also include neutral naphthalene sulfonates.
- the rust inhibitors can be used alone or in combination with other rust inhibitors.
- Foam inhibitors including polyacrylates, such as copolymers of ethyl acrylate and 2-ethylhexylacrylate, and optionally vinyl acetate; demulsifiers including polyglycol derivatives, trialkyl phosphates, polyethylene glycols, polyethylene oxides, polypropylene oxides, poly ethers and (ethylene oxide- propylene oxide) polymers; pour point depressants including esters of maleic anhydride-styrene, poly(meth)acrylates, polyacrylates or poly aery lamides; may also be used in the lubricant compositions of the invention.
- demulsifiers including polyglycol derivatives, trialkyl phosphates, polyethylene glycols, polyethylene oxides, polypropylene oxides, poly ethers and (ethylene oxide- propylene oxide) polymers
- pour point depressants including esters of maleic anhydride-styrene, poly(meth)acrylates, polyacrylates or poly aery
- compositions of the invention may be substantially free of, or free of, zinc, but may contain other metals. In other embodiments the compositions are substantially free of, or free of, all metals such that they may be considered ashless.
- the method and lubricating composition of the invention may be suitable industrial fluids, hydraulic fluids, turbine oils, circulating oils, or combinations thereof. In different embodiments the lubricating composition is suitable for various mechanical devices including industrial systems, hydraulic systems or turbines. In one embodiment the lubricating composition is suitable for a hydraulic system. [0110] In some embodiments the methods and compositions of the invention are used in a hydraulic pump. In one embodiment the pump is a hydraulic piston pump. In one embodiment the pump is a vane pump.
- the pump is a hydraulic hybrid piston and vane pump.
- the hydraulic fluid of the invention contains a Group II oil, at least one friction modifier as described above (such as a fatty acid ester), and an additive package containing a zinc containing dispersant, at least one antioxidant, at least one antiwear additive, an antifoam agent, a corrosion inhibitor, and a metal deactivator.
- Such additive packages may be present at any of the ranges described above, or at 0.8 to 2 wt %.
- the hydraulic fluid is a zinc containing monograde formulation.
- the hydraulic fluid of the invention contains a Group II oil, at least one friction modifier as described above (such as a fatty acid ester), and an additive package containing a viscosity modifier, at least one antioxidant, an antifoam agent, an antiwear agent, a corrosion inhibitor, and a metal deactivator.
- a viscosity modifier such as a fatty acid ester
- an additive package containing a viscosity modifier, at least one antioxidant, an antifoam agent, an antiwear agent, a corrosion inhibitor, and a metal deactivator.
- Such additive packages may be present at any of the ranges described above, or at 0.4 to 1.5 wt %.
- the hydraulic fluid is an ashless/zinc-free multigrade formulation.
- Comparative Example 1 A hydraulic fluid composition is prepared by adding Additive Package A to Petro CanadaTM Group II oil at a level of 1.62 wt %.
- Additive Package A contains a zinc containing dispersant derived from polyisobutylene succinic anhydride, a dialkyldiphenylamine antioxidant, a hindered phenol antioxidant, a zinc dialkyl dithiophosphate, an antifoam agent, a corrosion inhibitor, and a metal deactivator.
- Petro CanadaTM Group II oil is essentially sulfur free.
- Comparative Example 2 A hydraulic fluid composition is prepared by adding Additive Package B to ExxonMobilTM Esso Asia Pacific/Europe Group I oil at a level of 0.85 wt %.
- Additive Package B contains a polyisobutylene succinic anhydride dispersant, an alkyl phenol antioxidant, a zinc alkyl dithiophosphate antioxidant, a detergent, an antifoam agent, a metal deactivator, a corrosion inhibitor, and a demulsifier.
- ExxonMobilTM Esso Asia Pacific/Europe Group I oil has a sulfur content of 3500-4000 ppm.
- Comparative Example 3 A hydraulic fluid composition is prepared according to the procedure of Comparative Example 2 except that the ExxonMobilTM Esso Asia Pacific/Europe Group I oil is replaced with Petro CanadaTM Group II oil. Petro CanadaTM Group II oil is essentially sulfur free.
- Example 1 Example 1
- a hydraulic fluid composition is prepared by adding 5000 ppm of glycerol monooleate to MotivaTM Star Group II oil. No other additives are added. MotivaTM Star Group II oil contains about 9 ppm sulfur.
- Example 2. A hydraulic fluid composition is prepared by adding 1000 ppm of glycerol monooleate to MotivaTM Star Group II oil. No other additives are added.
- Example 3. A hydraulic fluid composition is prepared by adding 500 ppm of glycerol monooleate to the composition of Comparative Example 1.
- Example 4. A hydraulic fluid is prepared by adding 1000 ppm of glycerol monooleate to the composition of Comparative Example 1.
- Example 5 A hydraulic fluid is prepared by adding 1000 ppm of the condensation product of isostearic acid and tetraethylene pentamine to the composition of Comparative Example 1.
- Example 6 A hydraulic fluid is prepared by adding 1000 ppm of oleyl amide to the composition of Comparative Example 1.
- the examples and baselines of non-additized Group I and Group II oils are tested in a piston pump screening test intended to correlate to Parker Denison procedure A-TP-30533, published by Parker Denison Hydraulics.
- the test method utilizes a standard piston pump operated at 4000 psi, and 140 0 C for 24 hours.
- the baselines tested are the ExxonMobilTM Group I oil used in Comparative Example 3 which has a sulfur content of 3500-4000 ppm and Petro CanadaTM Group II oil, which is essentially sulfur free.
- the testing is carried out. The results of the testing are summarized in the table below. Where repeats are completed both results are reported. Table 1 - Piston Pump Screen Testing
- a passing result in this test is a total piston weight loss of 300 mg or less.
- Example 3 uses the same base oil and additive package as Comparative Example 1. While the result is still a fail, Example 3 shows an improvement in the wear test result over Comparative Example 1.
- Group I based and Group II based hydraulic fluids and the need for improved wear performance in Group II based fluids and fluids with similar sulfur contents.
- Group I based hydraulic fluids have significantly better wear properties presumably due to their high sulfur contents as demonstrated by Comparative Example 2.
- antiwear performance becomes more of an issue.
- the results also show that the addition of a friction modifier, such as glycerol monooleate, can significantly improve the antiwear performance (reduce the wear) delivered by a hydraulic fluid.
- Example 7 A hydraulic fluid composition is prepared by adding Additive Package A, as described in Comparative Example 1 above, to Motiva Star Group II oil at a level of 1.62 wt %. The fluid is then divided into three portions and each is treated with a different level of glycerol monooleate, one at 500 ppm, one at 1000 ppm, and one at 5000 ppm.
- Example 8 A hydraulic fluid composition is prepared by adding Additive Package A, as described in Comparative Example 1 above, to Motiva Star Group II oil at a level of 1.62 wt %. The fluid is then divided into three portions and each is treated with a different level of the condensation product of isostearic acid and tetraethylene pentamine, one at 500 ppm, one at 1000 ppm, and one at 5000 ppm. [0129] Example 9. A set of hydraulic fluid compositions are prepared according to Example 8 except that Additive Package A is present at a level of 1.42 wt % and the individual samples are treated with the friction modifier at 500 ppm, 1000 ppm, and 2500 ppm.
- Example 10 A set of hydraulic fluid compositions are prepared according to Example 9 except the friction modifier is hydroxyethyl-2- heptadecenyl imidazoline.
- Example 1 A set of hydraulic fluid compositions are prepared according to Example 9 except the friction modifier is dioleyl hydrogen phosphite.
- Example 12 A set of hydraulic fluid compositions are prepared according to Example 9 except the friction modifier is oleyl amide.
- Example 13 A set of hydraulic fluid compositions are prepared according to Example 9 except the friction modifier is C 14-Cl 8 alkyl phosphate amine salt and the individual samples are treated with the friction modifier at 500 ppm, and 1000 ppm. [0134] Example 14. A set of hydraulic fluids are prepared according to Example 13 except the friction modifier is tallow amine-2-ethoxylate. [0135] Example 15. A set of hydraulic fluids are prepared according to Example 9 except that a modified version of Additive Package A is used which is identical to Additive Package A described above except that it contains a smaller amount of zinc dialkyl dithiophosphate and also contains a small amount of polyisobutylene succinic anhydride.
- Example 16 A set of hydraulic fluids are prepared according to Example 15 except that the polyether demulsifier is present in all samples at 100 ppm.
- the reading of a sample is taken after mixing when complete separation of the water and oil phases occurs and no emulsion phase is present; however, if an any amount of emulsion phase is still present at 15 minutes, the reported reading is taken when 3 ml or less of an emulsion phase is present; if there is still more than 3 ml of emulsion phase at 30 minutes, the reading is taken at 30 minutes and the test is ended.
- the sample formulations and test results are summarized in the tables below.
- the Sample ID provides information on the formulation tested and identify of the friction modifier (FM) present. The columns then show results at various treatment levels of the friction modifier. Several samples were repeated. Where repeats were completed both readings are reported in the table below. Table 2 - Demulsibility Testing
- compositions of the present invention have acceptable demulsibility properties at various treat rates of various friction modifiers.
- the methods and compositions of the invention provide improved wear performance while maintaining acceptable demulsibility properties.
- hydrocarbyl substituent or “hydrocarbyl group,” as used herein are used in its ordinary sense, which is well-known to those skilled in the art. Specifically, it refers to a group primarily composed of carbon and hydrogen atoms and is attached to the remainder of the molecule through a carbon atom and does not exclude the presence of other atoms or groups in a proportion insufficient to detract from the molecule having a predominantly hydrocarbon character.
- each chemical or composition referred to herein should be interpreted as being a commercial grade material which may contain the isomers, by-products, derivatives, and other such materials which are normally understood to be present in the commercial grade.
- the amount of each chemical component is presented exclusive of any solvent or diluent, which may be customarily present in the commercial material, unless otherwise indicated. It is to be understood that the upper and lower amount, range, and ratio limits set forth herein may be independently combined. Similarly, the ranges and amounts for each element of the invention can be used together with ranges or amounts for any of the other elements.
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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)
Abstract
La présente invention porte sur des procédés destinés à lubrifier un dispositif mécanique à l'aide d'une composition lubrifiante à faible teneur en soufre, qui contient un modificateur de frottement et fournit une performance anti-usure améliorée. L'invention porte également sur les compositions lubrifiantes utilisées dans ces procédés.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14579009P | 2009-01-20 | 2009-01-20 | |
PCT/US2010/021297 WO2010085434A1 (fr) | 2009-01-20 | 2010-01-18 | Composition hydraulique présentant des propriétés améliorées à l'usure |
Publications (1)
Publication Number | Publication Date |
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EP2389427A1 true EP2389427A1 (fr) | 2011-11-30 |
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ID=42040244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10701963A Withdrawn EP2389427A1 (fr) | 2009-01-20 | 2010-01-18 | Composition hydraulique présentant des propriétés améliorées à l'usure |
Country Status (9)
Country | Link |
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US (1) | US20110287989A1 (fr) |
EP (1) | EP2389427A1 (fr) |
JP (4) | JP2012515833A (fr) |
KR (3) | KR20170010077A (fr) |
CN (2) | CN104120000A (fr) |
AU (1) | AU2010206868B2 (fr) |
BR (1) | BRPI1006936A2 (fr) |
CA (1) | CA2750240C (fr) |
WO (1) | WO2010085434A1 (fr) |
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US9012385B2 (en) | 2012-02-29 | 2015-04-21 | Elevance Renewable Sciences, Inc. | Terpene derived compounds |
CN104955926B (zh) | 2012-11-16 | 2018-06-22 | 巴斯夫欧洲公司 | 用于改进氟聚合物密封剂相容性的包括环氧化物化合物的润滑剂组合物 |
US20140274832A1 (en) | 2013-03-12 | 2014-09-18 | Elevance Renewable Sciences, Inc. | Maleinized ester derivatives |
US20150057204A1 (en) | 2013-03-12 | 2015-02-26 | Elevance Renewable Sciences, Inc. | Maleanized Ester Derivatives |
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WO2016081175A1 (fr) * | 2014-11-19 | 2016-05-26 | Exxonmobil Research And Engineering Company | Compositions d'huile hydraulique donnant un rendement moteur hydraulique amélioré |
CN105695057B (zh) * | 2016-02-26 | 2018-08-14 | 北京雅士科莱恩石油化工有限公司 | 一种高粘度指数超低温节能工程机械液压油 |
KR102346237B1 (ko) * | 2016-03-31 | 2021-12-31 | 이데미쓰 고산 가부시키가이샤 | 불수용성 금속 가공유 조성물 |
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CN109370736B (zh) * | 2018-11-29 | 2021-02-09 | 郑州正赢石化有限公司 | 一种耐碱性无灰液压油 |
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- 2010-01-18 US US13/145,166 patent/US20110287989A1/en not_active Abandoned
- 2010-01-18 CN CN201410355557.7A patent/CN104120000A/zh active Pending
- 2010-01-18 WO PCT/US2010/021297 patent/WO2010085434A1/fr active Application Filing
- 2010-01-18 CA CA2750240A patent/CA2750240C/fr active Active
- 2010-01-18 JP JP2011548050A patent/JP2012515833A/ja not_active Withdrawn
- 2010-01-18 KR KR1020177001170A patent/KR20170010077A/ko not_active Application Discontinuation
- 2010-01-18 EP EP10701963A patent/EP2389427A1/fr not_active Withdrawn
- 2010-01-18 BR BRPI1006936A patent/BRPI1006936A2/pt not_active IP Right Cessation
- 2010-01-18 KR KR1020177034235A patent/KR20170134779A/ko not_active Application Discontinuation
- 2010-01-18 CN CN2010800123711A patent/CN102356146A/zh active Pending
- 2010-01-18 KR KR1020117019191A patent/KR20110111308A/ko not_active Application Discontinuation
- 2010-01-18 AU AU2010206868A patent/AU2010206868B2/en active Active
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2015
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JP2015083703A (ja) | 2015-04-30 |
AU2010206868B2 (en) | 2016-11-03 |
KR20110111308A (ko) | 2011-10-10 |
JP2012515833A (ja) | 2012-07-12 |
BRPI1006936A2 (pt) | 2017-05-30 |
CN102356146A (zh) | 2012-02-15 |
JP2017145426A (ja) | 2017-08-24 |
AU2010206868A1 (en) | 2011-08-11 |
US20110287989A1 (en) | 2011-11-24 |
WO2010085434A1 (fr) | 2010-07-29 |
KR20170010077A (ko) | 2017-01-25 |
JP2016156028A (ja) | 2016-09-01 |
KR20170134779A (ko) | 2017-12-06 |
CA2750240A1 (fr) | 2010-07-29 |
CN104120000A (zh) | 2014-10-29 |
CA2750240C (fr) | 2018-05-29 |
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