EP3320065A1 - Zusammensetzung und verfahren zur verhinderung oder verminderung von motorklopfen und -vorzündung in ottomotoren mit hoher verdichtung - Google Patents
Zusammensetzung und verfahren zur verhinderung oder verminderung von motorklopfen und -vorzündung in ottomotoren mit hoher verdichtungInfo
- Publication number
- EP3320065A1 EP3320065A1 EP16738626.7A EP16738626A EP3320065A1 EP 3320065 A1 EP3320065 A1 EP 3320065A1 EP 16738626 A EP16738626 A EP 16738626A EP 3320065 A1 EP3320065 A1 EP 3320065A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oil
- antiwear additive
- ashless antiwear
- lubricating
- branched
- 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- Withdrawn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
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- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 65
- 239000011574 phosphorus Substances 0.000 claims abstract description 65
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- 239000011593 sulfur Substances 0.000 claims abstract description 64
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- 125000001424 substituent group Chemical group 0.000 description 11
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- RDOFJDLLWVCMRU-UHFFFAOYSA-N Diisobutyl adipate Chemical compound CC(C)COC(=O)CCCCC(=O)OCC(C)C RDOFJDLLWVCMRU-UHFFFAOYSA-N 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 10
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- 238000006243 chemical reaction Methods 0.000 description 10
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- 150000003138 primary alcohols Chemical class 0.000 description 10
- 150000003839 salts Chemical class 0.000 description 10
- UIVPNOBLHXUKDX-UHFFFAOYSA-N 3,5,5-trimethylhexyl 3,5,5-trimethylhexanoate Chemical compound CC(C)(C)CC(C)CCOC(=O)CC(C)CC(C)(C)C UIVPNOBLHXUKDX-UHFFFAOYSA-N 0.000 description 9
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- MHPUGCYGQWGLJL-UHFFFAOYSA-N dimethyl pentanoic acid Natural products CC(C)CCCC(O)=O MHPUGCYGQWGLJL-UHFFFAOYSA-N 0.000 description 9
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- PXSXRABJBXYMFT-UHFFFAOYSA-N n-hexylhexan-1-amine Chemical compound CCCCCCNCCCCCC PXSXRABJBXYMFT-UHFFFAOYSA-N 0.000 description 1
- HKUFIYBZNQSHQS-UHFFFAOYSA-N n-octadecyloctadecan-1-amine Chemical compound CCCCCCCCCCCCCCCCCCNCCCCCCCCCCCCCCCCCC HKUFIYBZNQSHQS-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- JACMPVXHEARCBO-UHFFFAOYSA-N n-pentylpentan-1-amine Chemical compound CCCCCNCCCCC JACMPVXHEARCBO-UHFFFAOYSA-N 0.000 description 1
- SNWVRVDHQRBBFG-UHFFFAOYSA-N n-phenyl-n-(2,4,4-trimethylpentan-2-yl)naphthalen-1-amine Chemical compound C=1C=CC2=CC=CC=C2C=1N(C(C)(C)CC(C)(C)C)C1=CC=CC=C1 SNWVRVDHQRBBFG-UHFFFAOYSA-N 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
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- UHGIMQLJWRAPLT-UHFFFAOYSA-N octadecyl dihydrogen phosphate Chemical compound CCCCCCCCCCCCCCCCCCOP(O)(O)=O UHGIMQLJWRAPLT-UHFFFAOYSA-N 0.000 description 1
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- 239000002954 polymerization reaction product Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
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- 230000008707 rearrangement Effects 0.000 description 1
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- BPILDHPJSYVNAF-UHFFFAOYSA-M sodium;diiodomethanesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C(I)I BPILDHPJSYVNAF-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- 238000000638 solvent extraction Methods 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 150000003440 styrenes Chemical class 0.000 description 1
- 150000003444 succinic acids Chemical class 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- FWMUJAIKEJWSSY-UHFFFAOYSA-N sulfur dichloride Chemical compound ClSCl FWMUJAIKEJWSSY-UHFFFAOYSA-N 0.000 description 1
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- YBRBMKDOPFTVDT-UHFFFAOYSA-N tert-butylamine Chemical compound CC(C)(C)N YBRBMKDOPFTVDT-UHFFFAOYSA-N 0.000 description 1
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- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- GAJQCIFYLSXSEZ-UHFFFAOYSA-N tridecyl dihydrogen phosphate Chemical compound CCCCCCCCCCCCCOP(O)(O)=O GAJQCIFYLSXSEZ-UHFFFAOYSA-N 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
- GAJQCIFYLSXSEZ-UHFFFAOYSA-L tridecyl phosphate Chemical compound CCCCCCCCCCCCCOP([O-])([O-])=O GAJQCIFYLSXSEZ-UHFFFAOYSA-L 0.000 description 1
- 150000005671 trienes Chemical class 0.000 description 1
- BDZBKCUKTQZUTL-UHFFFAOYSA-N triethyl phosphite Chemical compound CCOP(OCC)OCC BDZBKCUKTQZUTL-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- PHYFQTYBJUILEZ-IUPFWZBJSA-N triolein Chemical class CCCCCCCC\C=C/CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C/CCCCCCCC)COC(=O)CCCCCCC\C=C/CCCCCCCC PHYFQTYBJUILEZ-IUPFWZBJSA-N 0.000 description 1
- PVNIQBQSYATKKL-UHFFFAOYSA-N tripalmitin Chemical class CCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCC PVNIQBQSYATKKL-UHFFFAOYSA-N 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- 239000001226 triphosphate Substances 0.000 description 1
- 235000011178 triphosphate Nutrition 0.000 description 1
- OXFUXNFMHFCELM-UHFFFAOYSA-N tripropan-2-yl phosphate Chemical compound CC(C)OP(=O)(OC(C)C)OC(C)C OXFUXNFMHFCELM-UHFFFAOYSA-N 0.000 description 1
- SJHCUXCOGGKFAI-UHFFFAOYSA-N tripropan-2-yl phosphite Chemical compound CC(C)OP(OC(C)C)OC(C)C SJHCUXCOGGKFAI-UHFFFAOYSA-N 0.000 description 1
- QOPBTFMUVTXWFF-UHFFFAOYSA-N tripropyl phosphite Chemical compound CCCOP(OCCC)OCCC QOPBTFMUVTXWFF-UHFFFAOYSA-N 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-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
- BMPBPTNLNBRGOT-UHFFFAOYSA-N tris(4-ethylphenyl) phosphate Chemical compound C1=CC(CC)=CC=C1OP(=O)(OC=1C=CC(CC)=CC=1)OC1=CC=C(CC)C=C1 BMPBPTNLNBRGOT-UHFFFAOYSA-N 0.000 description 1
- QQBLOZGVRHAYGT-UHFFFAOYSA-N tris-decyl phosphite Chemical compound CCCCCCCCCCOP(OCCCCCCCCCC)OCCCCCCCCCC QQBLOZGVRHAYGT-UHFFFAOYSA-N 0.000 description 1
- DCXXMTOCNZCJGO-UHFFFAOYSA-N tristearoylglycerol Chemical class CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229960002703 undecylenic acid Drugs 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 125000002348 vinylic group Chemical group 0.000 description 1
- 239000007762 w/o emulsion Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000010457 zeolite Substances 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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
- C10M2207/2825—Esters of (cyclo)aliphatic oolycarboxylic acids used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
- C10M2207/2835—Esters of polyhydroxy compounds used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/108—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified
-
- 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
-
- 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
- C10M2215/065—Phenyl-Naphthyl amines
-
- 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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
-
- 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
- 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
-
- 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
- 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
-
- 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
- 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
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
-
- 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
- C10N2030/45—Ash-less or low ash content
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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
- C10N2030/76—Reduction of noise, shudder, or vibrations
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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
- C10N2040/25—Internal-combustion engines
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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
- C10N2040/25—Internal-combustion engines
- C10N2040/251—Alcohol fueled engines
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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
- C10N2040/25—Internal-combustion engines
- C10N2040/255—Gasoline engines
Definitions
- This disclosure relates to a lubricant composition for high compression spark ignition engines that contains (i) a lubricating oil base stock comprising at least one branched ester having at least about 15% of the total carbons i the form of methyl groups, and (ii) at least one ashless antiwear additive selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphorus/sulfur-containing ashless antiwear additive.
- This disclosure also relates to a method for preventing or reducing engine knock and pre-ignition in an engine lubricated with a formulated oil.
- the formulated oil has a composition comprising (i) a lubricating oil base stock comprising at least one branched ester having at least about 15% of the total carbons in the form of methyl groups, and (ii) at least one ashless antiwear additive selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphoras/sulfur-contaiiiing ashless antiwear additive.
- the lubricating oils of this disclosure are useful as passenger vehicle engine oil (PVEO) products.
- octane numbers indicate a resistance to combustion, and are associated with in increased ignition delay.
- aromatics, naphthenes, alkenes, and branched alkane molecules increase the octane number of a fuel, while linear paraffins decrease the octane number of a fuel.
- most of the existing data are limited to low molecular weight molecules, generally with carbon numbers 20 or below.
- Oxygenate additives such as methanol, ethanol, and MTBE are known to increase octane number.
- methanol e.g., corrosion
- ethanol e.g., elastomer compatibility
- these oxygenates are not suitable for use in a lubricant composition.
- LSPI low speed pre-ignition
- the lubricating oil composition having ashless additives be useful in lubricating gasoline-fueled, and natural gas, liquefied petroleum gas, dimethyl ether-fueled spark ignition engines, or any spark ignition engine operating under a fuel from a renewable source (e.g., ethanol).
- a renewable source e.g., ethanol
- This disclosure relates in part to new lubricating oil formulations which are particularly useful in high compression spark ignition engines and, when used in high compression spark ignition engines, will prevent or minimize engine knocking and pre-ignition problems.
- the lubricating oil compositions of this disclosure are useful in high compression spark ignition engines, including gasoline-fueled, and natural gas, liquefied petroleum gas, dimethyl ether-fueled spark ignition engines, or any spark ignition engine operating under a fuel from a renewable source (e.g., ethanol).
- the lubricant formulation chemistry of this disclosure can be used to prevent or control the detrimental effect of engine knocking and pre-ignition in engines which have already been designed or sold in the marketplace as well as future engine technology.
- the lubricant formulation solutions afforded by this disclosure for preventing or reducing engine knocking and pre-ignition problems enables product differentiation with regard to the engine knocking and pre-ignition problems.
- This disclosure also relates in part to a method for preventing or reducing engine knock or pre-ignition, including LSPI, in a high compressio spark ignition engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil.
- the formulated oil has a composition comprising (i) a lubricating oil base stock comprising at least one branched ester having at least about 15% of the total carbons in the form of methyl groups, as a major component, and (ii) at least one ashless antiwear additive selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphorus/sulfur-containing ashless antiwear additive, as a minor component.
- a lubricating oil base stock comprising at least one branched ester having at least about 15% of the total carbons in the form of methyl groups, as a major component
- at least one ashless antiwear additive selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphorus/sulfur-containing ashless antiwear additive, as a minor component.
- This disclosure also relates in part to a method for preventing or reducing engine knock or pre-ignition, including LSPI, in a high compression spark ignition engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil.
- the formulated oil has a composition comprising (i) a lubricating oil base stock comprising at least one branched ester having at least about 15% of the total carbons in the form of methyl groups, and (ii) at least one ashless antiwear additive selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphorus/sulfur-containing ashless antiwear additive.
- This disclosure yet further relates in part to a lubricating engine oil for high compression spark ignition engines having a composition
- a lubricating oil base stock comprising at least one branched ester having at least about 15% of the total carbons in the form of methyl groups, as a major component
- at least one ashless antiwear additive selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphoras/sulfur-contaiiiing ashless antiwear additive, as a minor component.
- This disclosure also relates in part to a lubricating engine oil for high compression spark ignition engines.
- the lubricating engine oil has a composition comprising (i) a lubricating oil base stock comprising at least one branched ester having at least about 15% of the total carbons i the form of methyl groups, and (ii) at least one ashless antiwear additive selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphorus/sulfur-containing ashless antiwear additive.
- This disclosure further relates in part to a lubricating engine oil for high compression spark ignition engines.
- the lubricating engine oil has a compositio comprising (i) a lubricating oil base stock comprising at least one branched polyol ester having at least about 30% of the carbons in the form of methyl groups, and (ii) at least one ashless antiwear additive selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphoras/sulfur-containing ashless antiwear additive.
- the lubricating engine oil comprises (i) a lubricating oil base stock comprising at least one branched ester having at least about 15% of the total carbons in the form of methyl groups, as a major component, and (ii) at least one ashless antiwear additive selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphoras/sulfur-containing ashless antiwear additive, as a minor component.
- This disclosure also relates in part to a high compression spark ignition engine lubricated with the lubricating engine oil.
- the lubricating engine oil has a composition that comprises (i) a lubricating oil base stock comprising at least one branched ester having at least about 15% of the total carbons in the form of methyl groups, and (ii) at least one ashless antiwear additive selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphorus/sulfur-containing ashless antiwear additive.
- the lubricating engine oil comprises (i) a lubricating oil base stock comprising at least one branched polyol ester having at least about 30% of the carbons in the form of methyl groups, and (ii) at least one ashless antiwear additive selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphorus/sulfur-containing ashless antiwear additive.
- the disclosure yet further relates in part to a method of making a lubricating engine oil for high compression spark ignition engines.
- the method comprises blending a lubricating oil base stock compr is g at least one branched ester having at least about 15% of the total carbons i the form of methyl groups, with at least one ashless antiwear additive selected from the group consisting of a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphorus/sulfur-containing ashless antiwear additive, in a amount sufficient that, when 5% of the lubricating engine oil is added to isooctane, the resulting isooctane/ lubricating engine oil mixture maintains at least about 80% of the isooctane ignition delay or combustion delay, using the equipment and test conditions of ASTM D7668.
- a formulated oil comprising (i) a lubricating oil base stock comprising at least one branched ester having at least about 15% of the total carbons in the form of methyl groups, and (ii) at least one ashless antiwear additive selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphorus/sulfur-containing ashless antiwear additive.
- the preferred branched ester is a mono-pentaerythritol ester of a branched mono-carboxylic acid, or a di ⁇ pentaerythritol ester of a branched mono-carboxylic acid, having at least about 30% of the total carbons in the form of methyl groups.
- the preferred ashless antiwear additive comprises an amine phosphate, a thiophosphate, a dithiophosphate, an amine salt of sulfurized phosphate, an alkylated phosphorothionate, or mixtures thereof.
- the ashless antiwear additives selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphorus/sulfur-containing ashless antiwear additive (e.g., amine phosphate) afford longer ignition delays than ash-containing antiwear additives (e.g., ZnDTP and MoDTP).
- the ashless antiwear additives selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphorus/sulfur- containing ashless antiwear additive (e.g., thiophosphate or amine salt of sulfurized phosphate) afford better oxidation stability in combination with an alkylated phenyl naphthylamine antioxidant in highly branched pentaerythritol ester formulations.
- a phosphorus-containing ashless antiwear additive e.g., thiophosphate or amine salt of sulfurized phosphate
- amine antioxidants e.g., alkylated phenyl-alpha-naphthylamine
- ashless antiwear additives selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphoms/sulfur-containing ashless antiwear additive (e.g., amine phosphates).
- the ashless antiwear additives selected from a phosphoms-containing ashless antiwear additive, a sulfur- containing ashless antiwear additive, and a phosphorus/sulfur-containing ashless antiwear additive (e.g., amine phosphates and selected dithiophosphates) afford better wear protection than alkylated triphenyl phosphorothionates in highly branched pentaerythritol ester formulations in the presence of an antioxidant.
- a phosphoms-containing ashless antiwear additive e.g., amine phosphates and selected dithiophosphates
- Fig. 1 shows formulations prepared in accordance with Example 1.
- FIG. 2 shows testing results from the formulations shown in Fig. 1 in accordance with Example 1.
- Fig. 3 shows formulations prepared in accordance with Example 2.
- Fig. 4 show r s testing results from the formulations show r n in Fig. 3 in accordance with Example 2.
- FIG. 5 show r s formulations prepared in accordance with Example 3.
- Fig. 6 shows testing results from the formulations shown in Fig. 5 in accordance with Example 3. DETAILED DESCRIPTION
- lubricating oil formulations of this disclosure which are particularly useful i high compression spark ignition internal combustion engines and, when used in the high compression spark ignition internal combustion engines, will prevent or minimize engine knocking and pre-ignition problems.
- Prevention or reduction of engine knocking and/or pre-ignition problems can be attained in an engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil that has (i) a lubricating oil base stock comprising at least one branched ester having at least about 15% of the total carbons in the form of methyl groups, and (ii) at least one ashless antiwear additive selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphorus/sulfur- containing ashless antiwear additive.
- the preferred branched ester is a mono- pentaerythritol ester of a branched mono-carboxylic acid or a di-pentaerythritol ester of a branched mono-carboxylic acid, having at least 30% of the total carbons in the form of methyl groups.
- the preferred ashless antiwear additive comprises an amine phosphate, a thiophosphate, a dithiophosphate, an amine salt of sulfurized phosphate, an alkylated triphenylphosphorothionate, or mixtures thereof.
- the other preferred additives in the lubricating oil formulation includes a polymeric aminic antioxidant and an ashless detergent such as oil-soluble nonionic detergent.
- the lubricating oils of this disclosure are particularly useful in high compression spark ignition internal combustion engines and, when used in high - I I - compression spark ignition internal combustion engines, will prevent or minimize engine knocking and pre-ignition problems.
- the lubricating oil compositions of this disclosure are useful in lubricating high compression spark ignition engines.
- the lubricating oil formulations of this disclosure are particularly useful in high compression spark ignition engines and, when used in the high compression spark ignition engines, will prevent or minimize engine knocking and pre-ignition problems.
- the high compression spark ignition engines include, for example, super-charged engines and turbo-charged engines.
- the high compression spark ignition engines have a compression ratio of at least about 11, preferably at least about 13, and more preferably at least about 15.
- iso refers to any single isomer or a mixture of isomers.
- isoeicosane refers to a mixture of highly branched hydrocarbons with average molecular weight close to isoeicosane, and not just to 2 -methyl nonadecane.
- Lubricating base oils that are useful in the present disclosure are both natural oils, and synthetic oils, and unconventional oils (or mixtures thereof) can be used unrefined, refined, or rerefined (the latter is also known as reclaimed or reprocessed oil).
- Unrefined oils are those obtained directly from a natural or synthetic source and used without added purification. These include shale oil obtained directly from retorting operations, petroleum oil obtained directly from primary distillation, and ester oil obtained directly from an esterification process. Refined oils are similar to the oils discussed for unrefined oils except refined oils are subjected to one or more purification steps to improve at least one lubricating oil property.
- Groups I, II, III, IV and V are broad base oil stock categories developed and defined by the American Petroleum Institute (API Publication 1509; www.API.org) to create guidelines for lubricant base oils.
- Group I base stocks have a viscosity index of between about 80 to 120 and contain greater than about 0.03% sulfur and/or less than about 90% saturates.
- Group II base stocks have a viscosity index of between about 80 to 120, and contain less than or equal to about 0.03% sulfur and greater than or equal to about 90% saturates.
- Group III stocks have a viscosity index greater than about 120 and contain less than or equal to about 0.03 % sulfur and greater than about 90% saturates.
- Group IV includes polyalphaolefins (PAO).
- Group V base stock includes base stocks not included in Groups i-IV. The table below summarizes properties of each of these five groups.
- Natural oils include animal oils, vegetable oils (castor oil and lard oil, for example), and mineral oils. Animal and vegetable oils possessing favorable thermal oxidative stability can be used. Of the natural oils, mineral oils are preferred. Mineral oils vary widely as to their crude source, for example, as to whether they are paraffinic, naphthenic, or mixed paraffinic-naphthenic. Oils derived from coal or shale are also useful. Natural oils vary also as to the method used for their production and purification, for example, their distillation range and whether they are straight run or cracked, hydrorefined, or solvent extracted.
- Group II and/or Group III hydro processed or hydrocracked base stocks including synthetic oils such as polyalphaolefins, alkyl aromatics and synthetic esters are also well known base stock oils.
- Synthetic oils include hydrocarbon oil.
- Hydrocarbon oils include oils such as polymerized and interpolymerized olefins (polybutyienes, polypro- pylenes, propylene isobutylene copolymers, ethylene-olefin copolymers, and emylene-alphaolefin copolymers, for example).
- Polyalphaolefin (PAO) oil base stocks are commonly used synthetic hydrocarbon oil.
- PAOs derived from C 8 , Cjo, C 12 , C 14 olefins or mixtures thereof may be utilized. See U.S. Patent Nos. 4,956, 122; 4,827,064; and 4,827,073.
- the number average molecular weights of the PAOs typically vary from about 250 to about 3,000, although PAO's may be made i viscosities up to about 150 cSt (100°C).
- the PAOs are typicall comprised of relatively low molecular weight hvdrogenated polymers or oligomers of alphaolefins which include, but are not limited to, C 2 to about C32 alphaolefins with the C 8 to about C 16 alphaolefins, such as 1- hexene, 1-octene, 1-decene, 1-dodecene and the like, being preferred.
- the preferred polyalphaolefins are poly- 1 -hexene, poly- 1-octene, poly- 1-decene and poly- 1-dodecene and mixtures thereof and mixed olefin-derived polyolefins.
- the dimers of higher olefins in the range of C 14 to Ci 8 may be used to provide low r viscosity' base stocks of acceptably low r volatility.
- the PAOs may be predominantly trimers and tetramers of the starting olefins, with minor amounts of the higher oligomers, having a viscosity range of 1.5 to 12 cSt.
- PAO fluids of particular use may include 3.0 cSt, 3.4 cSt, and/or 3.6 cSt and combinations thereof. Bi ⁇ modal mixtures of PAO fluids having a viscosity' range of 1.5 to 150 cSt may be used if desired.
- the PAO fluids may be conveniently made by the polymerization of an alphaolefin in the presence of a polymerization catalyst such as the Friedel- Crafts catalysts including, for example, aluminum trichloride, boron trifluoride or complexes of boron trifluoride with water, alcohols such as ethanol, propanol or butanol, carboxylic acids or esters such as ethyl acetate or ethyl propionate.
- a polymerization catalyst such as the Friedel- Crafts catalysts including, for example, aluminum trichloride, boron trifluoride or complexes of boron trifluoride with water, alcohols such as ethanol, propanol or butanol, carboxylic acids or esters such as ethyl acetate or ethyl propionate.
- a polymerization catalyst such as the Friedel- Crafts catalysts including, for example, aluminum trichloride, boron triflu
- Other useful lubricant oil base stocks include wax isomerate base stocks and base oils, comprising hydroisornerized wax stocks (e.g. waxy stocks such as gas oils, slack waxes, fuels hydrocracker bottoms, etc.), hydroisornerized Fischer- Tropsch waxes, Gas-to-Liquids (GTL) base stocks and base oils, and other wax isomerate hydroisornerized base stocks and base oils, or mixtures thereof Fischer- Tropsch waxes, the high boiling point residues of Fischer- Tropsch synthesis, are highly paraffinic hydrocarbons with very low r sulfur content.
- hydroisornerized wax stocks e.g. waxy stocks such as gas oils, slack waxes, fuels hydrocracker bottoms, etc.
- hydroisornerized Fischer- Tropsch waxes e.g. waxy stocks such as gas oils, slack waxes, fuels hydrocracker bottoms, etc.
- GTL Gas-to-Liquids
- the hydroprocessing used for the production of such base stocks may use an amorphous hydrocracking/hydroisomerization catalyst, such as one of the specialized lube hydrocracking (LHDC) catafysts or a crystalline hydrocracking/hydroisomerization catalyst, preferably a zeolitic catalyst.
- an amorphous hydrocracking/hydroisomerization catalyst such as one of the specialized lube hydrocracking (LHDC) catafysts or a crystalline hydrocracking/hydroisomerization catalyst, preferably a zeolitic catalyst.
- LHDC specialized lube hydrocracking
- ZSM-48 ZSM-48 as described in U.S. Patent No. 5,075,269, the disclosure of which is incorporated herein by reference in its entirety.
- Processes for making hydrocracked/hydroisomerized distillates and hydrocracked/hydroisomerized waxes are described, for example, in U.S. Patent
- Gas-to-Liquids (GTL) base oils, Fischer- Tropsch wax derived base oils, and other wax-derived hydroisomerized (wax isomerate) base oils be advantageously used in the instant disclosure, and may have useful kinematic viscosities at 100°C of about 3 cSt to about 50 cSt, preferably about 3 cSt to about 30 cSt, more preferably about 3.5 cSt to about 25 cSt, as exemplified by GTL 4 with kinematic viscosity of about 4.0 cSt at 100°C and a viscosity index of about 141.
- Gas-to-Liquids (GTL) base oils may have useful pour points of about -20°C or lower, and under some conditions may have advantageous pour points of about -25 °C or lower, with useful pour points of about -30°C to about -40°C or lower.
- Useful compositions of Gas-to-Liquids (GTL) base oils, Fischer- Tropsch wax derived base oils, and wax-derived hydroisomerized base oils are recited in U.S. Patent Nos. 6,080,301: 6,090,989, and 6, 165,949 for example, and are incorporated herein in their entirety by reference.
- the hydrocarbyl aromatics can be used as base oil or base oil component and can be any hydrocarbyl molecule that contains at least about 5% of its weight derived from an aromatic moiety such as a benzenoid moiety or naphthenoid moiety, or their derivatives.
- These hydrocarbyl aromatics include alkyl benzenes, alkyl naphthalenes, alky! diphenyl oxides, alkyl naphthols, alky! diphenyl sulfides, alkylated bis-phenol A, alkylated thiodiphenol, and the like.
- the aromatic can be mono-alkylated, dialkylated, polyalkylated, and the like.
- the aromatic can be mono- or poly-functionalized.
- the hydrocarbyl groups can also be comprised of mixtures of alkyl groups, alkenyl groups, alkynyl, cycloalkyl groups, cycloalkenyl groups and other related hydrocarbyl groups.
- the hydrocarbyl groups can range from about C 6 up to about C 6 o with a range of about Cg to about C 2 o often being preferred. A mixture of hydrocarbyl groups is often preferred, and up to about three such substituents may be present.
- the hydrocarbyl group can optionally contain sulfur, oxygen, and/or nitrogen containing substituents.
- the aromatic group can also be derived from natural (petroleum) sources, provided at least about 5% of the molecule is comprised of an above-type aromatic moiety. Viscosities at 100°C of approximately 3 cSt to about 50 cSt are preferred, with viscosities of approximately 3.4 cSt to about 20 cSt ofte being more preferred for the hydrocarbyl aromatic component.
- an alkyl naphthalene where the alkyl group is primarily comprised of 1-hexadecene is used.
- Other alkylates of aromatics can be advantageously used.
- Naphthalene or methyl naphthalene for example, can be alkylated with olefins such as octene, decene, dodecene, tetradecene or higher, mixtures of similar olefins, and the like.
- Useful concentrations of hydrocarbyl aromatic in a lubricant oil composition can be about 2% to about 25%, preferably about 4% to about 20%, and more preferably about 4% to about 15%, depending on the application.
- Alkylated aromatics such as the hydrocarbyl aromatics of the present disclosure may be produced by well-known Friedel-Crafts alkylation of aromatic compounds. See Friedel-Crafts and Related Reactions, Olah, G. A. (ed.), inter- science Publishers, New York, 1963.
- an aromatic compound such as benzene or naphthalene
- an olefin, alkyl halide or alcohol in the presence of a Friedel-Crafts catalyst. See Friedel-Crafts and Related- Reactions, Vol. 2, part 1, chapters 14, 17, and 18, See Olah, G. A. (ed.), Inter- science Publishers, New York, 1964.
- catalysts are known to one skilled in the art.
- the choice of catalyst depends on the reactivity of the starting materials and product qualit requirements.
- strong acids such as A1C1 3 , BF 3 , or HF may be used.
- milder catalysts such as FeCl 3 or SnCl 4 are preferred.
- Newer alkylation technology uses zeolites or solid super acids.
- Other useful fluids of lubricating viscosity include non-conventional or unconventional base stocks that have been processed, preferably catalytically, or synthesized to provide high performance lubrication characteristics.
- Non-conventional or unconventional base stocks/base oils include one or more of a mixture of base stock(s) derived from one or more Gas-to-Liquids (GTL) materials, as well as isomerate/isodewaxate base stock(s) derived from natural w r ax or waxy feeds, mineral and or non-mineral oil waxy feed stocks such as slack waxes, natural waxes, and waxy stocks such as gas oils, waxy fuels hydrocracker bottoms, waxy raffinate, hydrocrackate, thermal crackates, or other mineral, mineral oil, or even non-petroleum oil derived waxy materials such as waxy materials received from coal liquefaction or shale oil, and mixtures of such base stocks.
- GTL Gas-to-Liquids
- GTL materials are materials that are derived via one or more synthesis, combination, transformation, rearrangement, and/or degradation/deconstructive processes from gaseous carbon-containing compounds, hydrogen-containing compounds and/or elements as feed stocks such as hydrogen, carbon dioxide, carbon monoxide, water, methane, ethane, ethylene, acetylene, propane, propylene, propyne, butane, butylenes, and butynes.
- GTL base stocks and/or base oils are GTL materials of lubricating viscosity that are generally derived from hydrocarbons; for example, waxy synthesized hydrocarbons, that are themselves derived from simpler gaseous carbon-containing compounds, hydrogen-containing compounds and/or elements as feed stocks.
- GTL base stock(s) and/or base oil(s) include oils boiling in the lube oil boiling range (1) separated/fractionated from synthesized GTL materials such as, for example, by distillation and subsequently subjected to a final wax processing step which involves either or both of a catalytic dew r axing process, or a solvent dewaxmg process, to produce lube oils of reduced/low pour point; (2) synthesized wax isomerates, comprising, for example, hydrodewaxed or hydroisomerized cat and/or solvent dewaxed synthesized wax or waxy hydrocarbons; (3) hydrodewaxed or hydroisomerized cat and/or solvent dewaxed Fischer- Tropsch (F-T) material (i.e., hydrocarbons, waxy hydrocarbons, waxes and possible analogous oxygenates); preferably hydrodewaxed or hydroisomerized/followed by cat and/or solvent dewaxing dewaxed F-T waxy hydrocarbons, or hydrode
- GTL base stock(s) and/or base oil(s) derived from GTL materials are characterized typically as having kinematic viscosities at 100°C of from about 2 mm 2 /s to about 50 mm 2 /s (ASTM D445). They are further characterized typically as having pour points of -5°C to about -40°C or lower (ASTM D97). They are also characterized typically as having viscosity indices of about 80 to about 140 or greater (ASTM D227Q).
- the GTL base stock(s) and/or base oil(s) are typically highly paraffinic (>90% saturates), and may contain mixtures of monocycloparaffins and multicycloparaffins in combination with non-cyclic isoparaffins.
- the ratio of the naphthenic (i.e., cycloparaffin) content in such combinations varies with the catalyst and temperature used.
- GTL base stock(s) and/or base oil(s) typically have very low sulfur and nitrogen content, generally containing less than about 10 ppm, and more typically less than about 5 ppm of each of these elements.
- the sulfur and nitrogen content of GTL base stock(s) and/or base oil(s) obtained from F-T material, especially F-T wax, is essentially nil.
- the absence of phosphorous and aromatics make this materially especially suitable for the formulation of low 7 SAP products.
- GTL base stock and/or base oil and/or wax isomerate base stock and/or base oil is to be understood as embracing individual fractions of such materials of wide viscosity range as recovered in the production process, mixtures of two or more of such fractions, as well as mixtures of one or two or more low viscosity fractions with one, two or more higher viscosity- fractions to produce a blend wherein the blend exhibits a target kinematic viscosity.
- the GTL material, from which the GTL base stock(s) and/or base oil(s) is/are derived is preferably an F-T material (i.e., hydrocarbons, waxy hydrocarbons, wax).
- Base oils for use in the formulated lubricating oils useful in the present disclosure are any of the variety of oils corresponding to API Group I, Group II, Group III, Group IV, and Group V oils and mixtures thereof, preferably API Group II, Group III, Group IV, and Group V oils and mixtures thereof, more preferably the Group III to Group V base oils due to their exceptional volatility', stability, viscometric and cleanliness features.
- the base oil constitutes the major component of the engine oil lubricant composition of the present disclosure and typically is present in an amount ranging from about 50 to about 99 weight percent, preferably from about 70 to about 95 weight percent, and more preferably from about 85 to about 95 weight percent, based on the total weight of the composition.
- the base oil may be selected from any of the synthetic or natural oils typically used as crankcase lubricating oils for spark ignition and compression-ignited engines.
- the base oil conveniently has a kinematic viscosity, according to ASTM standards, of about 2.5 cSt to about 12 cSt (or mm " /s) at 100°C and preferably of about 2.5 cSt to about 9 cSt (or mm 2 /s) at 100° C.
- Mixtures of synthetic and natural base oils may be used if desired. Mixtures of Group III, IV, V may be preferable.
- branched hydrocarbons are useful base stocks.
- the branched hydrocarbons can have at least about 25%, or at least about 35%, or at least about 50% or higher, of the carbons in the form of methyl groups.
- the branched hydrocarbons can have at least about 20 carbon atoms, or at least about 24 carbon atoms, or at least about 28 carbon atoms, or higher numbers of carbon atoms.
- Illustrative branched hydrocarbons useful in this disclosure include poly(branched alkene) polymers, branched aikanes, and branched alkenes.
- the poly(branched alkene) polymers are derived from a C4 to C28 branched alkenes, preferably C4 to €24 branched alkenes, more preferably C4 to €20 branched alkenes, and even more preferably C4 to C16 branched alkenes.
- the number average molecular weights of the poly(branched alkene) polymers typically vary from about 250 to about 3,000.
- the poly(branched alkene) fluids may be conveniently made by the polymerization of a branched alkene in the presence of a polymerization catalyst such as the Friedel-Crafts catalysts including, for example, aluminum trichloride, boron trifluoride or complexes of boron trifluoride with water, alcohols such as ethanol, propanol or butanol, carboxylic acids or esters such as ethyl acetate or ethyl propionate.
- a polymerization catalyst such as the Friedel-Crafts catalysts including, for example, aluminum trichloride, boron trifluoride or complexes of boron trifluoride with water, alcohols such as ethanol, propanol or butanol, carboxylic acids or esters such as ethyl acetate or ethyl propionate.
- a polymerization catalyst such as the Friedel-Crafts catalysts including, for example, aluminum
- Illustrative poly(branched. alkene) polymers include, for example, polyisobutene, poly(2-methyl- 1-butene), poly(3 -methyl- 1-butene), poly(2- m.ethyl-2-butene), poly(4 ⁇ ni ethyl- 1 -pentene), poly(5 -methyl- 1 -hexene ), poly(6- metliyl- 1 -heptene), poly(7-methyl- 1 -octene), poly(8-methyl- 1 -nonene), poly(9- methyl- 1 -decene), polyi 10-m ethyl - 1 -undecene), poly( 11 -methyl- 1 -dodecene), poly( 12-methyl- 1 -trideeene), poly( 13 -methyl- 1 -tetradeeene), poly( 14-methyl- 1 - pentadecene), poly(15-methyl
- Preferred poly(branched alkene) polymers useful in this disclosure include, for example, polyisobutene, hydrogenated polyisobutene, and the like.
- the poly(branched alkene) polymers have at least about 25% of the carbons in the form of methyl groups. Even more preferably, the poly(branched alkene) polymers have at least about .35% of the carbons in the form of methyl groups. Most preferably, the poly(branched alkene) polymers have at least about 50% of the carbons in the form of methyl groups, in addition to the carbons in the form of methyl groups, it is further preferred that at least about 20% of the carbons are in the form of quaternary carbons.
- Illustrative branched alkanes useful in this disclosure include C20 to C54 branched, alkanes.
- illustrative branched alkanes include, for example, isoeicosane, branched heneicosane, branched docosane, branched tncosane, branched tetracosane, branched pentacosane, branched hexacosane, branched heptacosane, branched octacosane, branched nonacosane, branched rriacontane, squalane, and the like.
- Preferred branched alkanes useful in this disclosure include, for example, branched alkanes having from about 20 to about 40 carbons, for example, isoeicosane, squalane, 2,2,4, 10,12, 12-hexamethyl-7-(3,5, 5- trimethylhexyl)tridecane, and the like.
- the branched alkanes have at least about 25% of the carbons in the form of methyl groups. Even more preferably, the branched a!kanes have at least about 35% of the carbons in the form of methyl groups. Most preferably, the branched alkanes have at least about 50% of the carbons in the form of methyl groups. In addition to the carbons in the form of methyl groups, it is further preferred that at least about 20%i of the carbons are in the form of quaternary carbons.
- Illustrative branched alkenes useful in this disclosure include C20 to C54 branched alkenes.
- Preferred branched alkenes useful in this disclosure include, for example, branched alkenes having from about 20 to about 40 carbons, for example, squalene, and the like.
- the branched alkenes have at least about 25% of the carbons in the form of methyl groups.
- the branched alkenes have at least about 35% of the carbons in the form of methyl groups.
- the branched alkenes have at least about 50% of the carbons in the form of methyl groups.
- Branched alkanes like squalane, branched alkenes like squalene, and hydrogenated polyisobutene like PanalaneTM from Ineos are widely used in cosmetics.
- Squalane and squalene can also be derived from natural sources.
- the branched hydrocarbon can be present in an amount of from about 1 to about 100 weight percent, or from about 5 to about 95 weight percent, or from about 10 to about 90 weight percent, or from about 20 to about 80 weight percent, based on the total weight of the formulated oil.
- the lubricating oil base stock is present in an amount of from about 40 weight percent to about 100 weight percent
- the branched hydrocarbon preferably a poly(branched alkene) or a branched alkane or a branched alkene, is present in an amount from about 1.0 to about 40 weight percent, based on the total weight of the lubricating oil.
- Esters comprise a useful base stock. Additive solvency and seal compatibility characteristics may be secured by the use of esters such as polyol esters of monocarboxylic acids and esters of dibasic acids with monoalkanols.
- Particularly useful synthetic esters are branched polyol esters which are obtained by reacting one or more polyhydric alcohols, preferably the hindered polyols (such as the neopentyl polyols, e.g., neopentyl glycol, trimethylol ethane, 2-methyl-2-propyl-l,3-propanediol, trimethvlol propane, pentaerythritol and dipentaerythritol) with single or mixed branched monocarboxylic acids containing at least about 4 carbon atoms, preferably C 5 to C 30 branched mono-carboxylic acids including 2,2-dimethyl propionic acid (neopentanoic acid), neoheptanoic acid, neooctanoic acid, neononanoic acid, iso- hexanoic acid, neodecanoic acid, 2-ethyl hexa
- Particularly useful polyols include, for example, neopentyl glycol, 2,2- dimethylol butane, trimethvlol ethane, trimethylol propane, trimethylol butane, mono-pentaerythritol, technical grade pentaerythritol, di-pentaerythritol, tri- pentaerythritol, ethylene glycol, propylene glycol and polyalkylene glycols (e.g., polyethylene glycols, polypropylene glycols, 1,4-butanediol, sorbitol and the like, 2-methylpropanediol, polybutylene glycols, etc., and blends thereof such as a polymerized mixture of ethylene glycol and propylene glycol).
- polyalkylene glycols e.g., polyethylene glycols, polypropylene glycols, 1,4-butanediol, sorbitol
- the most preferred alcohols are technical grade (e.g., approximately 88% mono-, 10% di- and 1-2% tri-pentaerylhritol) pentaerythritol, mono-pentaerythritol, di ⁇ pentaerythritol, neopentyl glycol and trimethylol propane.
- Particularly useful branched mono-carboxylic acids include, for example, 2,2-dimethyl propionic acid (neopentanoic acid), neoheptanoic acid, neooctanoic acid, neononanoic acid, iso-hexanoic acid, neodecanoic acid, 2- ethyl hexanoic acid (2EH), 3,5,5-trimethyl hexanoic acid (TMH), isoheptanoic acid, isooctanoic acid, isononanoic acid, isodecanoic acid, or mixtures of any of these materials.
- One especially preferred branched acid is 3,5,5-trimethyl hexanoic acid.
- the term "neo" as used herein refers to a trialkyl acetic acid, i.e., an acid which is triply substituted at the alpha carbon with alkyl groups.
- Mono- and/or di-carboxylic linear acids may be useful in this disclosure, and include any linear alkyl carboxylic acid having a carbon number in the range between about C2 to C18, preferably C2 to CIO.
- the branched polyol ester is derived from a polyhydric alcohol and a branched mono-carboxylic acid. Even more preferably, the branched mono-carboxylic acid and the polyol ester have at least about 25% of the carbons in the form of methyl groups. Even more preferably, the branched mono-carboxylic acid and the polyol ester have at least about 35% of the carbons in the form of methyl groups. Even more preferably, the branched mono-carboxylic acid and the polyol ester have at least about 40% of the carbons in the form of methyl groups.
- the branched mono- carboxylic acid and the polyol ester have at least about 50% of the carbons in the form of methyl groups. In addition to the carbons in the form of methyl groups, it is further preferred that at least about 20% of the carbons are in the form of quaternary carbons.
- the percentage of carbons in the form of methyl groups can also be determined by use of Carbon- 13 Nuclear Magnetic Resonance (NMR) method.
- NMR Carbon- 13 Nuclear Magnetic Resonance
- the percentage of carbons in the form of methyl groups is determined with the help of Distortionless Enhancement by Polarization Transfer (DEPT) Carbon-13 NMR method.
- DEPT Distortionless Enhancement by Polarization Transfer
- Preferred polyol esters useful in this disclosure include, for example, mono-pentaerythritol ester of branched mono-carboxylic acids, di- pentaerythritol ester of branched mono-carboxylic acids, trimetliylolpropane ester of C8-C10 acids, and the like.
- Other synthetic esters that can be useful in this disclosure are those which are obtained by reacting one or more polyhydric alcohols, preferably the hindered polyols (such as the neopentyl polyols, e.g., neopentyl glycol, trimetliylol ethane, 2-methyl-2-propyl-l,3-propanediol, trimethvlol propane, pentaerythritol and dipentaerythritol) with mono carboxylic acids containing at least about 4 carbo atoms, preferably branched C 5 to C 30 acids including caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachic acid, and behenic acid, or the corresponding branched chain fatty acids or unsaturated fatty acids such as oleic acid, or mixtures of any of these materials.
- the hindered polyols such as the
- esters useful in this disclosure include, for example, the esters of dicarboxylic acids such as plithalic acid, succinic acid, alkyl succinic acid, alkenyl succinic acid, maleic acid, azelaic acid, suberic acid, sebacic acid, fumaric acid, adipic acid, linoleic acid dimer, malonic acid, alkyl malonic acid, alkenyl malonic acid, etc., with a variety of alcohols such as butyl alcohol, hexyl alcohol, dodecyl alcohol, 2-ethylhexyl alcohol, etc.
- dicarboxylic acids such as plithalic acid, succinic acid, alkyl succinic acid, alkenyl succinic acid, maleic acid, azelaic acid, suberic acid, sebacic acid, fumaric acid, adipic acid, linoleic acid dimer, malonic acid, alkyl malonic acid, alkenyl malonic acid
- esters include dibutyl adipate, di(2-ethylhexyl) sebacate, di-n-hexyl fumarate, dioctyl sebacate, diisooctyl azelate, diisodecyl azelate, dioctyl phthalate, didecyl phthalate, dieicosyl sebacate, etc.
- esters derived from renewable material such as coconut, palm, rapeseed, soy, sunflower and the like. These esters may be monoesters, di-esters, polyol esters, complex esters, or mixtures thereof. These esters are widely available commercially, for example, the Mobil P-51 ester of ExxonMobil Chemical Company.
- ester base oils useful in this disclosure include adipate esters and more preferably dialkyl adipate esters such as diisopropyl. adipate, diisobutyl adipate, diisopentyi adipate, diisohexyl adipate, diisooctyl adipate, diisononyl adipate, diisodecyl adipate, and mixtures thereof.
- the dialkyl adipate ester comprises diisobutyl adipate.
- the preferred dialkyl adipate ester comprises diisooctyl adipate, diisononyl adipate, or diisodecyl adipate, or their mixtures.
- the dialkyl adipate ester is derived from an adipic acid and an alkyl alcohol (e.g., isobutyl alcohol, butyl alcohol, hexyl alcohol, dodecyl alcohol, and the like).
- an alkyl alcohol e.g., isobutyl alcohol, butyl alcohol, hexyl alcohol, dodecyl alcohol, and the like.
- the dialkyl adipate ester is derived from adipic acid and a branched alkyl alcohol. Even more preferably, the branched alkyl alcohol and the dialkyl adipate ester have at least about 20% of the carbons in the form of methyl groups. Even more preferably, the branched alcohol and the dialkyl adipate ester have at least about 25% of the carbons in the form of methyl groups. Even more preferably, the branched alcohol and the dialkyl adipate ester have at least about 30% of the carbons in the form of methyl groups. Most preferably, the branched alcohol and the dialkyl adipate ester have at least about 50% of the carbons in the form of methyl groups.
- the dialkyl adipate ester can preferably be used in mixture with one or more hydrocarbon base oils described herein.
- Illustrative mixtures include, for example, diisobutyl adipate/hydrogenated polyisobutene (80/20), diisobutyl adipate/hydrogenated polyisobutene (60/40), diisobutyl adipate/hydrogenated polyisobutene (40/60), diisobutyl adipate/hydrogenated polyisobutene (20/80), diisobutyl adipate/isoeicosane (80/20), diisobutyl adipate/isoeicosane (60/40), diisobutyl adipate/isoeicosane (40/60), diisobutyl adipate/isoeicosane (20/80), and the like.
- the weight ratio of dialkyl adipate ester:hydrocarbon base oil can range from about 1:99 to about 99: 1, or from about 5:95 to about 95:5, or from about 10:90 to about 90: 10, or from about 25:75 to about 75:25, or intermediate ratios.
- the weight ratio can also be 50:50. This ratio can be adjusted to reach a certain solubility for an additive or to reach a certain viscosity.
- ester base oils useful in this disclosure include, for example, mono-esters and more preferably mono-esters of branched alkyl acids and branched alcohols such as isopropyl isohexadodecanoate, isopropyl isooctadecanoate, isobutyl isononanoate, isobutyl isodecanoate, isobutyl neodecanoate, isobutyl isododecanoate, isobutyl isotridecanoate, isobutyl isotetradecanoate, isobutyl isohexadecanoate, isobutyl isooctadecanoate, isopental isononanoate, isopentyl isodecanoate, isopentyl neodecanoate, isopentyl isododecanoate, isopentyl isotridecanoate, isopent
- Particularly useful branched mono-carboxylic acids include, for example, 2,2-dimethyl propionic acid (neopentanoic acid), neoheptanoic acid, neooctanoic acid, neononanoic acid, iso-hexanoic acid, neodecanoic acid, 2 ⁇ ethyl hexanoic acid (2EH), 3, 5, 5 -trim ethyl hexanoic acid (TMH), isoheptanoic acid, isooctanoic acid, isononanoic acid, isodecanoic acid, isotetradecanoic acid, isohexadecanoic (isopalmitic acid), isooctadecanoic acid (isostearic acid), or mixtures of any of these materials.
- 2,2-dimethyl propionic acid neopentanoic acid
- neoheptanoic acid neo
- branched acid is 3,5,5-trimethyl hexanoic acid.
- the term "neo" as used herein refers to a trialkyl acetic acid, i.e., an acid which is triply substituted at the alpha carbo with alkyl groups.
- Particularly useful branched mono-alcohols include, for example, 2,2- dimethyl propanol (neopentanol), neoheptanol, neooctanol, neononanol, neo- hexanol, neodecanol, 2-ethyl hexanol (2E1T), 3,5,5-trimethyl hexanol, isoheptanol, isononanol, isodecanol, isododecanol, isotridecanol, isotetradecanol, isohexadecanol, isooctadecanol (isostearyi alcohol), or mixtures of any of these materials.
- 2,2- dimethyl propanol neopentanol
- neoheptanol neooctanol
- neononanol neo- hexanol
- branched alcohol is 3,5,5- trimethyl hexanol.
- neo refers to a trialkyl ethanol, i.e., an alcohol which is triply substituted at the alpha carbon with alkyl groups.
- the branched alkyl acid or the branched alkyl alcohol is derived from a renewable source.
- the branched alkyl alcohol and the branched alkyl acid have at least about 20% of the carbons in the form of methyl groups. Even more preferably, the branched alcohol and the branched alkyl acid have at least about 25%i of the carbons in the form of methyl groups. Even more preferably, the branched alcohol and the branched alkyl acid have at least about 30% of the carbons in the form of methyl groups. Most preferably, the branched alcohol and branched alkyl acid have at least about 50% of the carbons in the form of methyl groups.
- the mono-ester derivec 1 from a branched ⁇ ilkyl acid and a branched alkyl alcohol can preferabb )' be us sed in mixture with one or more hyc Irocarbon base oils described herein.
- Illustrative mixtures include, for example.
- the weight ratio of dialkyl adipate estenhydrocarbon base oil can range from about 1:99 to about 99: 1, or from about 5:95 to about 95:5, or from about 10:90 to about 90: 10, or from about 25:75 to about 75:25, or intermediate ratios.
- the weight ratio can also be 50:50. This ratio can be adjusted to reach a certain solubility for an additive or to reach a certain viscosity.
- Engine oil formulations containing renewable esters are included in this disclosure.
- the renewable content of the ester is typically greater than about 70 weight percent, preferably more than about 80 weight percent and most preferably more than about 90 weight percent.
- the ester can be present in an amount of from about 1 to about 100 weight percent, or from about 5 to about 95 weight percent, or from about 10 to about 90 weight percent, or from about 20 to about 80 weight percent, based on the total weight of the formulated oil.
- the lubricating oil base stock is present in an amount of from about 70 weight percent to about 95 weight percent, and the polyol ester is present in an amount from about 1.0 to about 40 weight percent, based on the total weight of the lubricating oil.
- the lubricating engine oils have at least one ashless antiwear additive selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphorus/sulfur-containing ashless antiwear additive.
- ashless ⁇ JJ - antiwear additives useful in this disclosure include, for example, amine phosphates, thiophosphates, dithiophosphates, amine salts of sulfurized phosphates, alkylated triphenyl phosphorothionates (e.g., butylated triphenyl phosphorothionate), and mixtures thereof, and the like.
- ashless antiwear additives can be obtained commercially from suppliers such as BASF under the trade name Irgalube 353, Irgalube 349, Irgalube 875, Irgalube 232, and from Vanderbi.lt Chemicals, LLC under the trade name Vanlube 9123.
- a phosphate ester or salt may be a monohydrocarbyl, dihydrocarbyl or a trihydrocarbyl phosphate, wherein each hydrocarbyl group is saturated.
- each hydrocarbyl group independently contains from about 8 to about 30, or from about 12 up to about 28, or from about 14 up to about 24, or from about 14 up to about 18 carbons atoms.
- the hydrocarbyl groups are alkyl groups. Examples of hydrocarbyl groups include tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl groups and mixtures thereof.
- a phosphate ester or salt is a phosphorus acid ester prepared by reacting one or more phosphorus acid or anhydride with a saturated alcohol.
- the phosphorus acid or anhydride is generally an inorganic phosphorus reagent, such as phosphorus pentoxide, phosphorus trioxide, phosphorus tetroxide, phosphorous acid, phosphoric acid, phosphorus halide, lower phosphorus esters, or a phosphorus sulfide, including phosphorus pentasulfide, and the like.
- Lower phosphorus acid esters generally contain from 1 to about 7 carbon atoms in each ester group. Alcohols used to prepare the phosphorus acid esters or salts.
- Alfol 1218 a mixture of synthetic, primary, straight-chain alcohols containing 12 to 18 carbon, atoms
- Alfol 20+ alcohols mixtures of C 18 -C 28 primary alcohols having mostly C20 alcohols as determined by GLC (gas-liquid- chromatography)
- Alfol22+ alcohols C 18 -C 28 primary alcohols containing primarily C 22 alcohols
- Alfol alcohols are available from Continental Oil Company.
- Adol 60 about 75% by weight of a straight chain C 22 primary alcohol, about 15% of a C 20 primary alcohol and about 8% of C 18 and C 24 alcohols.
- the Adol alcohols are marketed by Ashland Chemical.
- a variety of mixtures of monohydric fatty alcohols derived from naturally occurring triglycerides and ranging in chain length from C 8 to C 18 are available from Procter & Gamble Company. These mixtures contain various amounts of fatty alcohols containing 12, 14, 16, or 18 carbon atoms.
- CO- 1214 is a fatty alcohol mixture containing 0.5% of C 10 alcohol, 66.0% of C 12 alcohol, 26.0% of C 14 alcohol and 6.5% of C 16 alcohol.
- Neodol 23 is a mixture of C 12 and C 13 alcohols:
- Neodol 25 is a mixture of C 12 to C 15 alcohols; and
- Neodol 45 is a mixture of C 14 to C 15 linear alcohols.
- the phosphate contains from about 14 to about 18 carbon atoms in each hydrocarbyl group.
- the hydrocarbyl groups of the phosphate are generally derived from a mixture of fatty alcohols having from about 14 up to about 18 carbon atoms.
- the hydrocarbyl phosphate may also be derived from a fatty vicinal diol.
- Fatty vicinal diols include those available from Ashland Oil under the general trade designation Adol 114 and Adol 158.
- the former is derived from a straight chain alpha olefin fraction of C 11 -C 14, and the latter is derived from a C 15 -C 18 fraction.
- the phosphate salts may be prepared by reacting an acidic phosphate ester with an amine compound or a metallic base to form an amine or a metal salt.
- the amines may he monoamines or polyamines.
- Useful amines include those amines disclosed in U.S. Pat. No. 4,234,435.
- the monoamines generally contain a hydrocarbyl group which contains irom 1 to about 30 carbon atoms, or irom 1 to about 12, or from I to about 6.
- Examples of primary monoamines useful in the present disclosure include methylamine, ethylamine, propylamine, butylamine, cyclopentylamine, cyclohexylamine, octylamine, dodecylamine, allylamine, cocoamine, stearylamine, and laurylamine.
- secondary monoamines examples include dimethylamine, diethylamine, dipropylamine, dibutylamine, dicyclopentylamine, dicyclohexylamine, methylbutylamine, ethylhexylamine, and the like.
- An amine is a fatty (C8-30) amine which includes n-octylamine, n- decylamine, n-dodecylamine, n-tetradecylamine, n-hexadecylamine, n- octadecylamine, oleyamine, etc.
- fatty amines include commercially available fatty amines such as "Armeen” amines (products available from Akzo Chemicals, Chicago, 111.), such Armeen C, Armeen O, Armeen OL, Armeen T, Armeen HT, Anneen S and Armeen SD, wherein the letter designation relates to the fatty group, such as coco, oleyl, tallow, or stearyl groups.
- R is a divalent alkylene group having about 2 to about 6 carbon atoms
- x is a number from one to about 150, or from about one to about five, or one
- R" is a hydrocarbyl group of about 5 to about 150 carbon atoms.
- An example of an ether amine is available under the name SURF AM® amines produced and marketed by Mars Chemical Company, Atlanta, Ga.
- Preferred etheramines are exemplified by those identified as SURF AM P14B (decyloxypropylamine), SURF AM P16A (linear C16), SURF AM P17B (tridecyloxypropylamiiie).
- the carbon chain lengths (i.e.. C 14, etc.) of the SUR AMS described above and used hereinafter are approximate and include the oxygen ether linkage.
- An amine is a tertiary-aliphatic primary- amine.
- the aliphatic group preferably an alkyl group, contains from about 4 to about 30, or from about 6 to about 24, or from about 8 to about 22 carbon atoms.
- the tertiary alkyl primary amines are monoamines the alkyl group is a hydrocarbyl group containing from one to about 27 carbon atoms and R6 is a hydrocarbyl group containing from 1 to about 12 carbon atoms.
- Such amines are illustrated by tert-butylamine, tert-hexylamine, 1 -methyl- 1-amino-cyclohexane, tert- octylamine, tert-decylamine, tert-dodecylamine, tert-tetradecylamine, tert- hexadecylamine, tert-octadecylamine, tert-tetracosanylamine, and tert- octacosanylamine.
- Mixtures of tertiary aliphatic amines may also be used in preparing the phosphate salt.
- amine mixtures of this type are "Primene 81R” which is a mixture of Cl l -C14 tertiary alkyl primary amines and "Primene JMT” which is a similar mixture of CIS -C22 tertiary alkyl primary amines (both are available from Rohm and Haas Company).
- the tertiary aliphatic primary amines and methods for their preparation are known to those of ordinary skill in the art.
- An amine is a heterocyclic polyamine.
- the heterocyclic polyamines include aziridines, azetidines, azolidines, terra- and dihydropyridines, pyrroles, indoles, piperidines, imidazoles, di- and terra- hydroirnidazoles, piperazines, isoindoles, purines, morpholines, thiomorpholines, N-aminoalkylmorpholines, N-aminoalkylthiomorpholines, N- aminoalkyl-piperazines, ⁇ , ⁇ '-diaminoalkylpiperazines, azepines, azocines, azonines, aquelnes and terra-, di- and perhydro derivatives of each of the above and mixtures of two or more of these heterocyclic amines.
- Preferred heterocyclic amines are the saturated 5 ⁇ and 6-membered heterocyclic amines containing only nitrogen, oxygen and/or sulfur in the hetero ring, especially the piperidines, piperazines, thiomorpholines, morpholines, pyrrolidines, and the like.
- Piperidiiie, aminoalkyl substituted piperidines, piperazine, ammoalkyl substituted piperazines, morpholine, aminoalkyl substituted morpholines, pyrrolidine, and aminoalkyl-substituted pyrrolidines are especially preferred.
- the aminoalkyl substituents are substitated on a nitrogen atom forming part of the hetero ring.
- heterocyclic amines include N-aminopropylmorpholine, N-aminoethylpiperazine, and ⁇ , ⁇ '- diaminoethylpiperazine.
- Hydroxy heterocyclic polyamines are also useful. Examples include N-(2-hydroxyethyl)cyclohexylamine, 3- hydroxycyclopentylamine, parahydroxyaniline, N-hydroxyethylpiperazine, and the like.
- Lubricating compositions also may include a fatty imidazoline or a reaction product of a fatty carboxylic acid and at least one polyamine.
- the fatty imidazoline has fatty substituents containing from 8 to about 30, or from about 12 to about 24 carbon atoms.
- the substituent may be saturated or unsaturated, heptadeceneyl derived oleyl groups, preferably saturated.
- the fatty imidazoline may be prepared by reacting a fatty carboxylic acid with a polyalkylenepolyamine, such as those discussed above.
- the fatty carboxylic acids are generally mixtures of straight and branched chain fatty carboxylic acids containing about 8 to about 30 carbon atoms, or from about 12 to about 24, or from about 16 to about 18.
- Carboxylic acids include the polycarboxyiic acids or carboxylic acids or anhydrides having from 2 to about 4 carbonyi groups, preferably 2.
- the polycarboxyiic acids include succinic acids and anhydrides and Diels-Alder reaction products of unsaturated monocarboxylic acids with unsaturated carboxylic acids (such as acrylic, methacrylic, maleic, fumaric, crotonic and itaconic acids).
- the fatty carboxylic acids are fatty monocarboxylic acids, having from about 8 to about 30, preferably about 12 to about 24 carbo atoms, such as octanoic, oleic, stearic, linoleic, dodecanoic, and tall oil acids, preferably stearic acid.
- the fatty carboxylic acid is reacted with at least one polyamine.
- the polyamines may be aliphatic, cycloaliphatic, heterocyclic or aromatic. Examples of the polyamines include alkylene polyamines and heterocyclic polyamines.
- Hydroxyalkyl groups are to be understood as meaning, for example, monoethanolamine, diethanolamine or triethanolamine, and the term amine also includes diamine.
- the amine used for the neutralizat on depends on the phosphoric esters used.
- the EP additive according to the disclosure has the following advantages. It very high effectiveness when used in low concentrations and it is free of chlorine. For the neutralization of the phosphoric esters, the latter are taken and the corresponding amine slowly added with stirring. The resulting heat of neutralization is removed by cooling.
- the EP additive according to the disclosure can be incorporated into the respective base liquid with the aid of fatty substances (e.g. tall oil fatty acid, oleic acid, etc.) as solubilizers.
- the base liquids used are napthenic or paraffinic base oils, synthetic oils (e.g. polyglycols, mixed polyglycols), polyolefins, carboxylic esters, and the like.
- the composition comprises at least one phosphorus containing extreme pressure additive.
- additives are amine phosphate extreme pressure additives such as that known under the trade name IRGALUBE 349.
- amine phosphates are suitably present in an amount of from 0.01 to 2%, preferably 0.2 to 0.6% by weight of the lubricant composition.
- At least one straight and/or branched chain saturated or unsaturated monocarboxvlic acid which is optionally sulphurized in an amount which may be up to 35% by weight; and/or an ester of such an acid.
- the neutral organic phosphate which forms a component of the formulation may be present in an amount of 0.01 to 4%, preferably 1.5 to 2.5% b ⁇ weight of the composition.
- the above amine phosphates and any of the aforementioned benzo- or tolvltriazoles can be mixed together to form a single component capable of delivering antiwear performance.
- the neutral organic phosphate is also a conventional ingredient of lubricating compositions and any such neutral organic phosphate falling within the formula as previously defined may be employed.
- Phosphates for use in the present disclosure include phosphates, acid phosphates, phosphites and acid phosphites.
- the phosphates include triaryl phosphates, trialkyl phosphates, trialkylaryl phosphates, triarylalkyl phosphates and trialkenyl phosphates.
- triphenyl phosphate tricresyl phosphate, benzyldiphenyl phosphate, ethyldiphenyl phosphate, tributyl phosphate, ethyldibutyl phosphate, cresyldiphenyl phosphate, dicresylphenyi phosphate, ethylphenyldiphenyi phosphate, diethylphenylphenyl phosphate, propylphenyldi phenyl phosphate, dipropylphenylphenyl phosphate, triethylphenyl phosphate, tripropylphenyl phosphate, butvlphenyldiphenyl phosphate, dibutylphenvlphenyl phosphate, tributyl phenyl phosphate, trihexyl phosphate, tri(2-ethylhexyl) phosphate, tridecyl
- the acid phosphates include, for example, 2-ethylhexyl acid phosphate, ethyl acid phosphate, butyl acid phosphate, oleyl acid phosphate, tetracosyl acid phosphate, isodecyl acid phosphate, lauryl acid phosphate, tridecyl acid phosphate, stearyl acid phosphate, and isostearyi acid phosphate.
- the phosphites include, for example, triethyl phosphite, tributyl phosphite, triphenyl phosphite, tricresyl phosphite, tri(nonylpheiiyl) phosphite, tri(2-ethylhexyl) phosphite, tridecyl phosphite, trilauryl phosphite, triisooctyi phosphite, diphenylisodecyl phosphite, tristearyl phosphite, and trioleyl phosphite.
- the acid phosphites include, for example, dihutyl hydrogenphosphite, dilauryl hydrogenphosphite, dioleyl hydrogenphosphite, distearyl hydrogenphosphite, and diphenyl hydrogenphosphite.
- Amines that form amine salts with such phosphates include, for example, mono-substituted amines, di-substituted amines and tri-substituted amines.
- Examples of the mono-substituted amines include butylamine, pentylamine, hexylamine, cyclohexyl amine, octylamine, laurylamine, stearylamiiie, oleylamine and benzylamine; and those of the di-substituted amines include dibutylamine, dipentylamine, dihexylamine, dicyclohexylamine, dioctylamine, dilauryl amine, distearylamine, dioleylamine, dibenzylamine, stearyl monoethanolamine, decyl monoethanolamine, hexyl monopropanolamine, benzyl monoethanolamine, phenyl monoethanolamine, and tolyl monopropanolamine.
- tri-substituted amines examples include tributylamine, tripentyiamine, trihexvlamine, tricyclohexylaniine, trioctyiamine, trilaui lamine, tristeaiylamine, trioleylarnine, tribenzylamine, dioleyl monoethanolamine, dilauryl monopropanolamine, diocty!
- monoethanolamine dihexyl monopropanolamine, dibutyl monopropanolamine, oleyl diethanolamine, stearyl dipropanolamine, lauryl diethanolamine, octyl dipropanolamine, butyl diethanolamine, benzyl diethanolamine, phenyl diethanolamine, tolyl dipropanolamine, xylyl diethanolamine, triethanolamine, and tripropanolamine.
- Phosphates or their amine salts are added to the base oil in a amount of from 0.03 to 5% by weight, preferably from 0.1 to 4% by weight, relative to the total weight of the composition.
- Carboxylic acids to be reacted with amines include, for example, aliphatic carboxylic acids, dicarboxylic acids (dibasic acids), and aromatic carboxylic acids.
- the aliphatic carboxylic acids have from 8 to 30 carbo atoms, and may be saturated or unsaturated, and linear or branched.
- aliphatic carboxylic acids include pelargonic acid, lauric acid, tridecanoic acid, myristic acid, palmitic acid, stearic acid, isostearic acid, eicosanoic acid, behenic acid, triacontanoic acid, caproleic acid, undecylenic acid, oleic acid, linolenic acid, erucic acid, and linoleic acid.
- dicarboxylic acids include octadecylsuccinic acid, octadecenylsuccinic acid, adipic acid, azelaic acid, and sebacic acid.
- the aromatic carboxylic acids is salicylic acid.
- the amines to be reacted with carboxylic acids include, for example, polyalkylene-polyamines such as diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine, hexaethyleneheptamine, heptaethyleneoctamine, dipropylenetriamirie, tetrapropylenepentamine, and hexabutyleneheptamine; and alkanolamines such as monoethanolamine and diethanolamine.
- preferred are a combination of isostearic acid and tetraethylenepentamine, and a combination of oleic acid and diethanolamine.
- reaction products of carboxylic acids and amines are added to the base oil in an amount of from 0.01 to 5% by weight, preferably from 0.03 to 3% by weight, relative to the total weight of the composition.
- Important components are phosphites.
- hydrocarbyl substituent or “hydrocarbyl group” is used in its ordinary sense, which is well-known to those skilled in the art. Specifically, it refers to a group having a carbon atom directly attached to the remainder of the molecule and having predominantly hydrocarbon character.
- hydrocarbyl groups include: hydrocarbon substituents, that is, aliphatic (e.g., alkyi or alkenyi), alicyclic (e.g., cycloalkyl, cycloalkenyl) substituents, and aromatic-, aliphatic-, and alicyclic-substituted aromatic substituents, as well as cyclic substituents wherein the ring is completed through another portion of the molecule (e.g., two substituents together form an alicyclic radical); the substituted hydrocarbon substituents, that is, substituents containing non-hydrocarbon groups which, in the context of this disclosure, do not alter the predominantly hydrocarbon substituent, hydroxy, alkoxy, nitro); hetero-atom.
- hydrocarbon substituents that is, aliphatic (e.g., alkyi or alkenyi)
- alicyclic e.g., cycloalkyl, cycloalkenyl
- substituents that is, substituents which, wiender having a predominantly hydrocarbon character, in the context of this disclosure, contain other than carbon in a ring or chain otherwise composed of carbon atoms.
- Heteroatoms include sulfur, oxygen, nitrogen, and encompass substituents as pyridvl, furyl, thienyl and imidazolyl.
- no more than two, preferably no more than one, non-hydrocarbon substituent will be present for every ten carbo atoms in the hydrocarbyl group; typically, there will be no non-hydrocarbon substituents in the hydrocarbyl group.
- hydrocarbyl group in the context of the present disclosure, is also intended to encompass cyclic hydrocarbyl or hydrocarbylene groups, where two or more of the alkyi groups in the above structures together form a cyclic structure.
- the hydrocarbyl or hydrocarbylene groups of the present disclosure generally are alkyi or cycloalkyl groups which contain at least 3 carbon atoms. Preferably or optimaly containing sulfur, nitrogen, or oxygen, they will contain 4 to 24, and alternatively 5 to 18 carbon atoms. In another embodiment they contain about 6, or exactly 6 carbon atoms.
- the hydrocarbyl groups can be tertiary or preferably primary or secondary groups; in one embodiment the component is a di(hydrocarbyl)hydrogen phosphite and each of the hydrocarbyi groups is a primary alkyl group; in another embodiment the component is a di(hydrocarbyl.)hydrogen phosphite and each of the hydrocarbyi groups is a secondary alkyl group. In yet another embodiment the component is a hydrocarbylenehydrogen phosphite.
- Examples of straight chain hydrocarbyi groups include methyl, ethyl, n-propyl, n-butyl, n-hexyl, n-octyl, n-decyl, n-dodecyl, n-tetradecyl, stearyl, n-hexadecyl, n-octadecyl, oleyl, and cetyl.
- Examples of branched-chain hydrocarbon groups include isopropvl, isobutyl, secondary butyl, tertiary butyl, neopentyl, 2-ethylhexyl, and 2,6-dimethylheptyl.
- cyclic groups include cyclobutyl, cyclopentyl, methyl cyclopentyl, cyclohexyl, methylcyclohexyl, cycloheptyl, and cyclooctyl.
- aromatic hydrocarbyi groups and mixed aromatic-aliphatic hydrocarbyi groups include phenyl, methylphenyl, tolyl, and naphthyl.
- the R groups can also comprise a mixture of hydrocarbyi groups derived from commercial alcohols.
- examples of some monohydric alcohols and alcohol mixtures include the commercially available "AlfolTM" alcohols marketed by Continental Oil Corporation.
- AlfolTM 810 is a mixture containing alcohols consisting essentially of straight chain, primary alcohols having from 8 to 12 carbon atoms.
- AlfolTM 12 is a mixture of mostly C12 fatty alcohols;
- AlfolTM 22+ comprises C 18-28 primary alcohols having mostly C 22 alcohols, and so on.
- Various mixtures of monohydric fatty alcohols derived from naturally occurring triglycerides and ranging in chain length from C8 to C18 are available from Procter & Gamble Company.
- NeodolTM "NeodolTM” alcohols are available from Shell Chemical Co., where, for instance, NeodolTM 25 is a mixture of C 12 to C 15 alcohols.
- Specific examples of some of the phosphites within the scope of the disclosure include phosphorous acid, mono-, di-, or tri-propyl phosphite; mono-, di-, or tri-butyl phosphite, di-, or tri-amyl phosphite; mono-, di-, or tri- hexyl phosphite; mono-, di-, or tri-phenyi; mono-, di-, or tri-tolyl phosphite; mono-, di-, or tri-cresyl phosphite; dibutyl phenyl phosphite or mono-, di-, or tri- phosphite, amy! dicresyi phosphite.
- the phosphorus compounds of the present disclosure are prepared by well know reactions.
- One route the reaction of an alcohol or a phenol with phosphorus trichloride or by a transesterification reaction.
- Alcohols and phenols can be reacted with phosphorus pentoxide to provide a mixture of an alkyl or aryl phosphoric acid and a di alkyl or diaryl phosphoric acid.
- Alkyl phosphates can also be prepared by the oxidation of the corresponding phosphites. In any case, the reaction can be conducted with moderate heating.
- various phosphorus esters can be prepared by reaction using other phosphorus esters as starting materials.
- medium chain (C9 to C22) phosphorus esters have been prepared by reactio of dimethylphosphite with a mixture of medium-chain alcohols by means of a thermal transesterification or an acid- or base-catalyzed transesterification; see for example U.S. Pat. No. 4,652,416.
- Most such materials are also commercially available; for instance, triphenyl phosphite is available from Albright and Wilson as Duraphos TPPTM; di-n-butyl hydrogen phosphite from Albright and Wilson as Duraphos DBHPTM; and triphenylthiophosphate from BASF as Irgalube TPPTTM.
- the other major component of the present composition is a hydrocarbon having ethyienic unsaturation.
- the olefin is mono unsaturated, that is, containing only a single ethylenic double bond per molecule.
- the olefin can be a cyclic or a linear olefin. If a linear olefin, it can be an internal olefin or an alpha-olefin.
- the olefin can also contain aromatic unsaturation, i.e., one or more aromatic rings, provided that it also contains ethylenic (non-aromatic) unsaturation.
- the olefin normally will contain 6 to 30 carbon atoms. Olefins having significantly fewer than 6 carbon atoms tend to be volatile liquids or gases which are not normally suitable for formulation into a composition suitable as an antiwear lubricant. Preferably the olefin will contain 6 to 18 or 6 to 12 carbon atoms, and alternatively 6 or 8 carbon atoms.
- olefins include alkyl-substituted cyclopentenes, hexenes, cyclohexene, alkyl-substituted cyclohexenes, heptenes, cycloheptenes, alkyl-substituted cycloheptenes, octenes including diisobutylene, cyclooctenes, alkyl-substituted cyclooctenes, nonenes, decenes, undecenes, dodecenes including propylene tetramer, tridecenes, tetradecenes, pentadecenes, hexadecenes, heptadecenes, octadecenes, cyclooctadiene, norbornene, dicyclopentadiene, squalene, diphenylacetylene, and styTene.
- Highly preferred olefins highly preferred
- the mixtures of alcohols may be mixtures of different primary alcohols, mixtures of different secondary alcohols or mixtures of primary and secondary alcohols.
- useful mixtures include: n-butanol and n- octanol; n-pentanol and 2-ethyl-l-hexanol; isobutanol and n-hexanol; isobutanol and isoamyl alcohol; isopropanol and 2-methyl-4-pentanol; isopropanol and sec- butyl alcohol; isopropanol and isooctyl alcohol; and the like.
- Organic triesters of phosphorus acids are also employed in lubricants.
- Typical esters include triarylphosphates, trialkyl phosphates, neutral alkylaryl phosphates, alkoxyalkyl phosphates, triaryl phosphite, trialkylphosphite, neutral alkyl aryl phosphites, neutral phosphonate esters and neutral phosphine oxide esters.
- the long chain di alkyl phosphonate esters are used. More preferentially, the dimethyl-, diethyl-, and dipropyl-oleyl phophonates can be used.
- Neutral acids of phosphorus acids are the triesters rather than an acid (HO-P) or a salt of an acid.
- Any C4 to C8 alkyl or higher phosphate ester may be employed in the disclosure.
- tributyl phosphate (TBP) and tri isooctal phosphate (TOF) can be used.
- TBP tributyl phosphate
- TOF tri isooctal phosphate
- the speciiic triphosphate ester or combination of esters can easily be selected by one skilled in the art to adjust the density, viscosity etc. of the formulated fluid.
- Mixed esters, such as dibutyl octyl phosphate or the like may be employed rather than a mixture of two or more trialkyl phosphates.
- a trialkyl phosphate is often useful to adjust the specific gravity of the formulation, but it is desirable that the specific trialkyl phosphate be a liquid at low temperatures. Consequently, a mixed ester containing at least one partially alkylated with a C3 to C4 alkyl group is very desirable, for example, 4- isopropylphenyi diphenyl phosphate or 3-butylphenyl diphenyl phosphate. Even more desirable is a triaryl phosphate produced by partially alkylating phenol with butylene or propylene to form a mixed phenol which is then reacted with phosphorus oxychloride as taught in U.S. Pat. No. 3,576,923.
- Any mixed triaryl phosphate (TAP) esters may be used as cresyl diphenyl phosphate, tricresyl phosphate, mixed xylyl cresyl phosphates, lower alkylphenyl/phenyl phosphates, such as mixed isopropylphenyl/phenyl phosphates, t-butylphenyl phenyl phosphates.
- TEP triaryl phosphate
- the phosphoric acid ester, thiophosphoric acid ester, and amine salt thereof functions to enhance the lubricating performances, and can be selected from known compounds conventionally employed as extreme pressure agents.
- phosphoric acid esters, or an amine salt thereof which has an alkyl group, an alkenyl group, an alkyiaryl group, or an aralkyl group, any of which contains approximately 3 to 30 carbon atoms.
- Examples of the phosphoric acid esters include aliphatic phosphoric acid esters suc as triisopropyl phosphate, tri butyl phosphate, ethyl dibutyi phosphate, trihexyl phosphate, tri-2-ethylhexyl phosphate, trilauryl phosphate, tristearyl phosphate, and trioleyl phosphate; and aromatic phosphoric acid esters such as benzyl phenyl phosphate, ally!
- the phosphoric acid ester is a tri alkylphenyl pho sphate .
- amine salts of the above-mentioned phosphates are also employable.
- the amine salt is an amine salt of tri alkylphenyl phosphate or an amine salt of alkyl phosphate.
- One or any combination of the compounds selected from the group consisting of a phosphoric acid ester, and an amine salt thereof may be used.
- the phosphorus acid ester and/or its amine salt function to enhance the lubricating performances, and can be selected from known compounds conventionally employed as extreme pressure agents. Generally employed are a phosphonis acid ester or an amine salt thereof which has an alkyl group, an alkenyl group, an alkylaryl group, or an aralkyl group, any of which contains approximately 3 to 30 carbon atoms.
- Examples of the phosphorus acid esters include aliphatic phosphorus acid esters such as triisopropyl phosphite, tri butyl phosphite, ethyl dibutyi phosphite, trihexyl phosphite, tri-2-ethylhexylphosphite, trilauryl phosphite, tristearyl phosphite, and trioleyl phosphite; and aromatic phosphorus acid esters such as benzyl phenyl phosphite, allyl diphenyiphosphite, triphenyl phosphite, tricresyl phosphite, ethyl diphenyl phosphite, tributyl phosphite, ethyl dibutyi phosphite, cresyl diphenyl phosphite, dicresyl
- dilauryl phosphite dioleyl phosphite, dialkyl phosphites, and diphenyl phosphite.
- the phosphorus acid ester is a dialkyl phosphite or a trialkyl phosphite.
- the phosphate salt may be derived from a polyamine.
- the polyamines include alkoxylated diamines, fatty polyamine diamines, alkylenepolyamines, hydroxy containing polyamines, condensed polyamines arylpolyamines, and heterocyclic polyamines.
- alkoxylated diamines include those amine where y in the above formula is one. Examples of these amines include Ethoduomeen T/13 and T/20 which are ethylene oxide condensation products of N-tallowtrimethylenediamine containing 3 and 10 moles of ethylene oxide per mole of diamine, respectively.
- the poly amine is a fatty diamine.
- the fatty diamines include mono- or dialkyl, symmetrical or asymmetrical ethylene diamines, propane diamines (1,2, or 1,3), and polyamine analogs of the above.
- Suitable commercial fatty polyammes are Duomeen C. (N-coco-1,3- diammopropane), Duomeen S (N-soya- 1,3 -diammopropane), Duomeen T (N- tallow-l,3-diaminopropane), and Duomeen O (N-oleyl- 1,3 -diammopropane).
- Duomeens are commercially available from Armak Chemical Co., Chicago, 111.
- Such alkylenepolyamines include methylenepolyamines, ethylenepolyamines, butylenepolyamines, propylenepolyamines, pentylenepolyamines, etc.
- the higher homologs and related heterocyclic amines such as piperazines and N-amino alkyl-substituted piperazines are also included.
- Specific examples of such polyamines are ethyl enediamine, triethylenetetramine, tris-(2-aminoethyl)amine, propylenediamine, tiimethylenediamine, tripropylenetetramine, tetraethylenepentamine, hexaethyleneheptamine, pentaethylenehexamine, etc.
- Higher homologs obtained by condensing two or more of the above-noted alkyleneamines are similarly useful as are mixtures of two or more of the aforedescribed polyamines.
- the polyamine is an ethyl enepolyamine.
- Such polyamines are described in detail under the heading Ethylene Amines in Kirk Othmer's "Encyclopedia of Chemical Technology", 2d Edition, Vol. 7, pages 22- 37, Interscience Publishers, New York (1965).
- Ethylenepolyamines are often a complex mixture of polyalkylenepolyamines including cyclic condensation products.
- alkylenepolyamine bottoms can be characterized as having less than 2%, usually less than 1% (by weight) material boiling below about 200C.
- E-100 A typical sample of such ethylene polyamine bottoms obtained from the Dow Chemical Company of Freeport, Tex. designated "E-100".
- alkylenepolyamine bottoms include cyclic condensation products such as piperazine and higher analogs of diethylenetriamine, triethylenetetramine and the like.
- alkylenepolyamine bottoms can be reacted solely with the acylatmg agent or they can be used with other amines, polyamines, or mixtures thereof.
- Another useful polyamine is a condensation reaction between at least one hydroxy compound with at least one polyamine reactant containing at least one primary or secondary amino group.
- the hydroxy compounds are preferably polyhydric alcohols and amines. The polyhydric alcohols are described below. (See carboxylic ester dispersants.) In one embodiment, the hydroxy compounds are polyhydric amines.
- Polyhydric amines include any of the above-described monoamines reacted with an alkyiene oxide (e.g., ethylene oxide, propylene oxide, butylene oxide, etc.) having from two to about 20 carbon atoms, or from two to about four.
- alkyiene oxide e.g., ethylene oxide, propylene oxide, butylene oxide, etc.
- polyhydric amines examples include tri-(hydroxypropyl)amine, tris- (hydroxymethyl)amino methane, 2-amino-2-methyl-l,3-propanediol, ⁇ , ⁇ , ⁇ ', ⁇ '- tetrakis(2-hydroxypropyl)ethylenediamine, and N,N,N',N'-tetrakis(2- hydroxyethyl)etliylenediamine, preferably tris(hydroxyrnemyl)aininometliane (THAM).
- THAM tris(hydroxyrnemyl)aininometliane
- the at least one ashless antiwear additive selected from a phosphorus- containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphorus/ sulfur-containing ashless antiwear additive affords longer ignition delays than ash-containing antiwear additives (e.g., ZnDTP and MoDTP). See Fig. 2.
- the at least one ashless antiwear additive selected from a phosphorus- containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphorus/sulfur-containing ashless antiwear additive affords better oxidation stability in combination with an alkylated phenyl naphthylamine antioxidant in highly branched pentaerythritol ester fonnulations. See Fig. 4.
- amine antioxidants e.g., alkylated phenyl-alpha- naphthylamine
- a phosphorus-containing ashless antiwear additive e.g., a sulfur- containing ashless antiwear additive
- a phosphoras/sulfur-containing ashless antiwear additive e.g., amine phosphates
- At least one ashless antiwear additive selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphorus/sulfur-containing ashless antiwear additive affords better wear protection than alkylated triphenyl phosphorothionates i highly branched pentaerythritol ester fonnulations in the presence of an antioxidant. See Fig. 4.
- Preferred ashless antiwear additives selected from phosphorus- containing ashless antiwear additives, sulfur-containing ashless antiwear additives, and phosphorus/sulfur-containing ashless antiwear additives useful in this disclosure include, for example, amine phosphates, thiophosphates, dithiophosphates, amine salts of sulfurized phosphates, and mixtures thereof, and the like.
- the concentration of ashless antiwear additive selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphorus/sulfur-containing ashless antiwear additive in the lubricating oils of this disclosure can range from 0.05 to 4.0 weight percent preferably 0.1 to 2.0 weight percent, and more preferably from 0.2 weight percent to 1.0 weight percent, based on the total weight of the lubricating oil.
- the formulated lubricating oil useful in the present disclosure may additionally contain one or more of the other commonly used lubricating oil performance additives including but not limited to antiwear agents, dispersants, other detergents, corrosion inhibitors, rust inhibitors, metal deactivators, extreme pressure additives, anti-seizure agents, wax modifiers, viscosity index improvers, viscosity modifiers, fluid-loss additives, seal compatibility agents, friction modifiers, lubricity agents, anti-staining agents, chromophoric agents, defoamants, demulsifiers, emulsifiers, densifiers, wetting agents, gelling agents, tackiness agents, colorants, and others.
- the other commonly used lubricating oil performance additives including but not limited to antiwear agents, dispersants, other detergents, corrosion inhibitors, rust inhibitors, metal deactivators, extreme pressure additives, anti-seizure agents, wax modifiers, viscosity index improvers, viscosity
- Illustrative detergents useful in this disclosure include, for example, alkali metal detergents, alkaline earth metal detergents, or mixtures of one or more alkali metal detergents and one or more alkaline earth metal detergents.
- a typical detergent is an anionic material that contains a long chain hydrophobic portion of the molecule and a smaller anionic or oleophobic hydrophilic portion of the molecule.
- the anionic portion of the detergent is typically derived from an organic acid such as a sulfur acid, carboxylic acid, phosphorous acid, phenol, or mixtures thereof.
- the counterion is typically an alkaline earth or alkali metal.
- Salts that contain a substantially stochiornetric amount of the metal are described as neutral salts and have a total base number (TBN, as measured by ASTM D2896) of from 0 to 80.
- TBN total base number
- Many compositions are overbased, containing large amounts of a metal base that is achieved by reacting an excess of a metal compound (a metal hydroxide or oxide, for example) with an acidic gas (such as carbon dioxide).
- Useful detergents can be neutral, mildly overbased, or highly overbased. These detergents can be used in mixtures of neutral, overbased, highly overbased calcium salicylate, sulfonates, phenates and/or magnesium salicylate, sulfonates, phenates.
- the TBN ranges can vary from low, medium to high TBN products, including as low as 0 to as high as 600.
- Mixtures of low, medium, high TBN can be used, along with mixtures of calcium and magnesium metal based detergents, and including sulfonates, phenates, salicylates, and carboxylates.
- a detergent mixture with a metal ratio of 1, in conjunction of a detergent with a metal ratio of 2, and as high as a detergent with a metal ratio of 5, can be used.
- Borated detergents can also be used.
- Alkaline earth phenates are another useful class of detergent. These detergents can be made by reacting alkaline earth metal hydroxide or oxide (CaO, Ca(OH) 2 , BaO, Ba(OH) 2 , MgO, Mg(OH) 2 , for example) with an alkyl phenol or sulfurized alkylphenol.
- alkaline earth metal hydroxide or oxide Ca(OH) 2 , BaO, Ba(OH) 2 , MgO, Mg(OH) 2 , for example
- Useful alkyi groups include straight chain or branched C alkyl groups, preferably, C 4 -C 2 o or mixtures thereof. Examples of suitable phenols include isobutylphenol, 2 ⁇ ethylhexylphenol, nonylphenol, dodecyl phenol, and the like.
- starting alkylphenol s may contain more than one alkyl substituent that are each independently straight chain or branched and can be used from 0.5 to 6 weight percent.
- the sulfurized product may be obtained by methods well known in the art. These methods include heating a mixture of alkylphenol and sulfurizing agent (including elemental sulfur, sulfur halides such as sulfur dichloride, and the like) and then reacting the sulfurized phenol with an alkaline earth metal base.
- Metal salts of carboxylic acids are also useful as detergents. These carboxylic acid detergents may be prepared by reacting a basic metal compound with at least one carboxylic acid and removing free water from the reaction product. These compounds may be overbased to produce the desired TBN level.
- Detergents made from salicylic acid are one preferred class of detergents derived from carboxylic acids.
- Useful salicylates include long chain alkyl salicylate One useful family of compositions is of the formula
- R is an alkyl group having I to 30 carbon atoms
- n is an integer from 1 to 4
- M is an alkaline earth metal.
- Preferred R groups are alkyl chains of at least C ji , preferably C 13 or greater.
- R may be optionally substituted with substituents that do not interfere with the detergent's function.
- M is preferably, calcium, magnesium, or barium. More preferably, M is calcium.
- Hydrocarbyl -substituted salicylic acids may be prepared from phenols by the Kolbe reaction (see U.S. Patent No. 3,595,791).
- the metal salts of the hydrocarbyl -substituted salicylic acids may be prepared by double decomposition of a metal salt in a polar solvent such as water or alcohol.
- Alkaline earth metal phosphates are also used as detergents and are known in the art.
- Detergents may be simple ( gents or what is known as hybrid or complex detergents. The latter deterge can provide the properties of two detersents without the need to blend se materials. See U.S. Patent No.
- Preferred detergents include calcium phenates, calcium sulfonates, calcium salicylates, magnesium phenates, magnesium sulfonates, magnesium salicylates and other related components (including borated detergents), and mixtures thereof.
- Preferred mixtures of detergents include magnesium sulfonate and calcium salicylate, magnesium sulfonate and calcium sulfonate, magnesium sulfonate and calcium phenate, calcium phenate and calcium salicylate, calcium phenate and calcium sulfonate, calcium phenate and magnesium salicylate, calcium phenate and magnesium phenate.
- nonionic detergents are polyoxyethylene, polyoxypropylene, polyoxybutylene alky! ethers, or nonylphenol ethoxylates.
- nonionic Surfactants Physical Chemistry
- These detergents are less common in engine lubricant form.ulati.ons , but offer a number of advantages such as improved solubility in ester base oils.
- the nonionic detergents that are soluble in hydrocarbons generally have a Hydrophilic-Lipophilic Balance (HLB) value of 10 or below.
- HLB Hydrophilic-Lipophilic Balance
- the preferred detergents in this disclosure include detergents soluble in a branched hydrocarbon or a branched ester, preferably a polyol ester, more preferably a mono- or dipentaerythrito! ester of at least one branched mono carboxylic acid, and even more preferably the nonionic detergents.
- the most preferred detergents in this disclosure is an ashless nonionic detergent with a. Hydrophilic-Lipophilic Balance (HLB) value of 10 or below.
- HLB Hydrophilic-Lipophilic Balance
- the detergent concentration in the lubricating oils of this disclosure can range from 0.5 to 6.0 weight percent preferably 0.6 to 5.0 weight percent, and more preferably from 0.8 weight percent to 4.0 weight percent, based on the total weight of the lubricating oil.
- the detergent concentrations are given on an “as delivered” basis.
- the active detergent is delivered with a process oil.
- the "as delivered” detergent typically contains from 20 weight percent to 100 weight percent, or from 40 weight percent to 60 weight percent, of active detergent in the "as delivered” detergent product.
- Dispersants help keep these byproducts in solution, thus diminishing their deposition on metal surfaces.
- Dispersants used in the formulation of the lubricating oil may be ashless or ash-forming in nature.
- the dispersant is ashless.
- So called ashless dispersants are organic materials that form substantially no ash upo combustion.
- non-metal-containing or borated metal-free dispersants are considered ashless.
- metal- containing detergents discussed above form ash upon combustion.
- Suitable dispersants typically contain a polar group attached to a relatively high molecular weight hydrocarbon chain.
- the polar group typically contains at least one element of nitrogen, oxygen, or phosphorus.
- Typical hydrocarbon chains contain 50 to 400 carbon atoms.
- a particularly useful class of dispersants are the alkenyl succinic derivatives, typically produced by the reaction of a long chain hydrocarbyl substituted succinic compound, usually a hydrocarbyl substituted succinic anhydride, with a polyhydroxy or polyamino compound.
- the long chain hydrocarbyl group constituting the oleophilic portion of the molecule which confers solubility in the oil is normally a polyisobutylene group.
- Hydrocarbyl-substituted succinic acid and hydrocarbyl-substituted succinic anhydride derivatives are useful dispersants.
- succinimide, succinate esters, or succinate ester amides prepared by the reaction of a hydrocarbon-substituted succinic acid compound preferably having at least 50 carbon atoms in the hydrocarbon substituent, with at least one equivalent of an alkylene amine are particularly useful, although on occasion, having a hydrocarbon substituent between 20-50 carbon atoms can be useful.
- Succinimides are formed by the condensation reaction between hydrocarbyl substituted succinic anhydrides and amines. Molar ratios can vary depending on the polyamine. For example, the molar ratio of hydrocarbyl substituted succinic anhydride to ⁇ can vary from 1: 1 to 5: 1. Representative examples are shown in U.S. Patent Nos. 3,087,936; 3, 172,892; 3,219,666; 3,272,746; 3,322,670; and 3,652,616, 3,948,800; and Canada Patent No. 1,094,044.
- Succinate esters are formed by the condensation reaction between hydrocarbyl substituted succinic anhydrides and alcohols or polyols. Molar ratios can vary depending on the alcohol or polyol used. For example, the condensation product of a hydrocarbyl substituted succinic anhydride and pentaerythritol is a useful dispersant.
- Succinate ester amides are formed by condensation reaction between hydrocarbyl substituted succinic anhydrides and alkanol amines.
- suitable alkanol amines include ethoxylated polyalkylpolyamines, propoxylated polyalkylpolyamines and polyalkenylpolyamines such as polyethylene polyamines.
- propoxylated hexam ethyl enedianrine is shown in U.S. Patent No. 4,426,305.
- the molecular weight of the hydrocarbyl substituted succinic anhydrides used in the preceding paragraphs will typically range between 800 and 2,500 or more.
- the above products can be post-reacted with various reagents such as sulfur, oxygen, formaldehyde, carboxylic acids such as oleic acid.
- the above products can also be post reacted with boron compounds such as boric acid, borate esters or highly borated dispersants, to form borated dispersants generally having from 0.1 to 5 moles of boron per mole of dispersant reaction product.
- Mannich base dispersants are made from the reaction of alkvlphenols, formaldehyde, and amines. See U.S. Patent No. 4,767,551, which is incorporated herein by reference. Process aids and catalysts, such as oleic acid and sulfonic acids, can also be part of the reaction mixture. Molecular weights of the alkylphenols range from 800 to 2,500. Representative examples are shown in U.S. Patent Nos. 3,697,574; 3,703,536; 3,704,308; 3,751,365; 3,756,953; 3,798, 165; and 3,803,039.
- Typical high molecular weight aliphatic acid modified Mannich condensation products useful in. this disclosure can be prepared from high molecular weight alkyl-substituted hydroxy aromatics or HNR 2 group-containing reactants.
- Hydrocarbyl substituted amine ashless dispersant additives are well known to one skilled in the art; see, for example, U.S. Patent Nos. 3,275,554; 3,438,757; 3,565,804; 3,755,433, 3,822,209, and 5,084,197.
- Preferred dispersants include borated and non-borated succinimides, including those derivatives from mono-succinimides, bis- succinimides, and/or mixtures of mono- and bis-succinimides, wherein the hydrocarbyl succinimide is derived from a hydrocarbylene group such as polyisobutylene having a Mn of from 500 to 5000, or from 1000 to 3000, or 1000 to 2000, or a mixture of such hydrocarbylene groups, often with high terminal vinylic groups.
- Other preferred dispersants include succinic acid-esters and amides, alkylphenol-polyamine-coupled Mannich adducts, their capped derivatives, and other related components.
- Polymethacrylate or polyacrylate derivatives are another class of dispersants. These dispersants are typically prepared by reacting a nitrogen containing monomer and a methacrylic or acrylic acid esters containing 5 -25 carbon atoms in the ester group. Representative examples are shown in U.S. Patent Nos. 2, 100, 993, and 6,323,164. Polymethacrylate and polyacrylate dispersants are normally used as multifunct onal viscosity index improvers. The lower molecular weight versions can be used as lubricant dispersants or fuel
- polymethacrylate or polyacrylate dispersants are preferred in polar esters of a non-aromatic dicarboxylic acid, preferably adipate esters, since many other conventional dispersants are less soluble.
- the preferred dispersants for polyol esters in this disclosure include polymethacrylate and polyacrylate di spersants .
- Such dispersants may be used in an amount of 0.1 to 20 weight percent, preferably 0.5 to 8 weight percent, or more preferably 0.5 to 4 weight percent.
- the hydrocarbon numbers of the dispersant atoms can range from C60 to CIOOO, or from C70 to C300, or from C70 to C200.
- These dispersants may contain both neutral and basic nitrogen, and mixtures of both.
- Dispersants can be end-capped by borates and/or cyclic carbonates.
- a metal alkylthiophosphate and more particularly a metal diatkyl ditliio phosphate in which the metal constituent is zinc, or zinc dialkyl dithio phosphate (ZDDP) is a useful component of the lubricating oils of this disclosure.
- ZDDP can be derived from primary alcohols, secondary 7 alcohols or mixtures thereof.
- ZDDP compounds generally are of the formula
- R 1 and R 2 are C Cjg alkyl groups, preferably C 2 -Cn alkyl groups. These alkyl groups may be straight chain or branched.
- Alcohols used in the ZDDP can be 2-propanol, butanol, secondary butanol, pentanols, hexanols such as 4- methyl-2-pentanol, n-hexariol, n-octariol, 2-ethyl hexaiiol, alkylated phenols, and the like. Mixtures of secondary alcohols or of primary and secondary alcohol ca be preferred. Alkyl aryl groups may also be used.
- Preferable zinc dithiophosphates which are commercially available include secondary zinc dithiophosphates such as those available from for example, The Lubrizol Corporation, under the trade designations "LZ 677 A”, “LZ 1095” and “LZ 1371", from for example Chevron Oronite under the trade designation "OLOA 262" and from for example Afton Chemical under the trade designation. "HITEC 7169".
- ZDDP is typically used in amounts of from 0.4 weight percent to 1.2 weight percent, preferably from 0.5 weight percent to 1.0 weight percent, and more preferably from 0.6 weight percent to 0.8 weight percent, based on the total weight of the lubricating oil, although more or less can often be used advantageously.
- the ZDDP is a secondary ZDDP and present in an amount of from 0.6 to 1.0 weight percent of the total weight of the lubricating oil.
- Low phosphorus engine oil formulations are included in this disclosure.
- the phosphorus content is typically less than 0.12 weight percent preferably less than 0.10 weight percent, and most preferably less than 0.085 weight percent. Low phosphorus can be preferred in combination with, the friction modifier.
- Viscosity index improvers can be included in the lubricant compositions of this disclosure.
- Viscosity index improvers provide lubricants with high and low temperature operability. These additives impart shear stability at elevated temperatures and acceptable viscosity at low temperatures.
- Suitable viscosity index improvers include high molecular weight hydrocarbons, polyesters and viscosity index improver dispersants that function as both a viscosity index improver and a dispersant.
- Typical molecular weights of these polymers are between about 10,000 to 1,500,000, more typically about 20,000 to 1,200,000, and even more typically between about 50,000 and 1,000,000.
- the typical molecular weight for polymethacrylate or polyacrylate viscosity index improvers is less than about 50,000.
- suitable viscosity index improvers are linear or star- shaped polymers and copolymers of methacrylate, butadiene, olefins, or alkylated styrenes.
- Polyisobutyiene is a commonly used viscosity index improver.
- Another suitable viscosity index improver is polymethacrylate (copolymers of various chain length alkyl methacrylates, for example), some form.ulati.ons of which also serve as pour point depressants.
- suitable viscosity index improvers include copolymers of ethylene and propylene, hydrogenated block copolymers of styrene and isoprene, and polyacrylates (copolymers of various chai length acrylates, for example). Specific examples include styrene-isoprene or styrene-butadiene based polymers of 50,000 to 200,000 molecular weight.
- Olefin copolymers are commercially available from Chevron Oronite Company LLC under the trade designation "PARATONE®” (such as “PARATONE® 8921” and “PARATONE® 8941”); from Afton Chemical Corporation under the trade designation “HiTEC®” (such as “HiTEC® 5850B”; and from The Lubrizol Corporation, under the trade designatio "Lubrizol® 7067C”.
- Hydrogenated polyisoprene star polymers are commercially available from infineum international Limited, e.g., under the trade designation "SV200” and "SV600”.
- Hydrogenated diene-styrene block copolymers are commercially available from Infmeum International Limited, e.g., under the trade designation "SV 50".
- the preferred viscosity index improvers in this disclosure when an ester of a non-aromatic dicarboxylic acid, preferably an alkyl adipate ester, is used as base oil, are polymethacrylate or poiyacryiate polymers, including dispersant polymetliacrylate and dispersant poiyacryiate polymers. These polymers offer significant advantages in solubility in esters of a non-aromatic dicarboxylic acid, preferably alkyl adipate esters.
- the polymethacrylate or poiyacryiate polymers can be linear polymers which are available from Evnoik Industries under the trade designation "Viscoplex®” (e.g., Viscoplex 6-954) or star polymers which are available from Lubrizol Corporation under the trade designation AstericTM (e.g., Lubrizol 87708 and Lubrizol 87725).
- Viscoplex® e.g., Viscoplex 6-954
- AstericTM e.g., Lubrizol 87708 and Lubrizol 87725.
- the viscosity index improvers may be used in an amount of from 1.0 to about 20% weight percent, preferably 5 to about 15 weight percent, and more preferably 8.0 to about 12 weight percent, based on the total weight of the formulated oil or lubricating engine oil.
- the viscosity index improver concentrations are give on an "as delivered” basis.
- the active polymer is delivered with a diluent oil.
- the "as delivered" viscosity index improver typically contains from 20 weight percent to 75 weight percent of an active polymer for polymethacrylate or poiyacryiate polymers, or from 8 weight percent to 20 weight percent of an active polymer for olefin copolymers, hydrogenated polyisoprene star polymers, or hydrogenated diene-styrene block copolymers, in the "as delivered” polymer concentrate.
- Antioxidants retard the oxidative degradation of base oils during service. Such degradation may result in deposits on metal surfaces, the presence of sludge, or a viscosity increase in the lubricant.
- One skilled in the art knows a wide variety of oxidation inhibitors that are useful in lubricating oil compositions. See, Klamann in Lubricants and Related Products, op cite, and U.S. Patent Nos. 4,798,684 and 5,084,197, for example.
- Useful antioxidants include hindered phenols. These phenolic antioxidants may be ashless (metal-free) phenolic compounds or neutral or basic metal salts of certain phenolic compounds. Typical phenolic antioxidant compounds are the hindered phenolics which are the ones which contain a stericallv hindered hydroxyl group, and these include those derivatives of dihydroxy aryl compounds in which the hydroxyl groups are in the o ⁇ or p-position to each other. Typical phenolic antioxidants include the hindered phenols substituted with C 6 + alkyl groups and the alkylene coupled derivatives of these hindered phenols.
- phenolic materials of this type 2-t-butyl- 4-heptyl phenol; 2-t-butyl-4-octyl phenol; 2-t-butyl-4-dodecyl phenol; 2,6-di-t- butyl-4-heptyl phenol; 2,6-di-t-butyl-4-dodecyl phenol; 2-methyl-6-t-butyl-4- heptyl phenol; and 2-methyl-6-t-butyl-4-dodecyl phenol.
- Other useful hindered mono-phenolic antioxidants may include for example hindered 2,6-di-alkyl- phenolic proprionic ester derivatives.
- Bis-phenolic antioxidants may also be advantageously used in combination with the instant disclosure.
- ortho-coupled phenols include: 2,2'-bis(4-heptyl-6-t-butyl-phenol); 2,2'-bis(4- octyl-6-t-butyl-phenol) ; and 2,2 ' ⁇ bi s(4-dodecyl-6-t-butyl -phenol).
- Para-coupled bisphenols include for example 4,4'-bis(2,6-di-t-butyl phenol) and 4,4'- methylene-bis(2,6-di-t-butyl phenol).
- catalytic antioxidants comprise an effective amount of a) one or more oil soluble polymetal organic compounds; and, effective amounts of b) one or more substituted N,N'-diaryl-o-phenylenediamine compounds or c) one or more hindered phenol compounds; or a combination of both b) and c).
- Catalytic antioxidants are more fully described in U.S. Patent No. 8, 048,833, herein incorporated by reference in its entirety'.
- Non-phenolic oxidation inhibitors which may be used include aromatic amine antioxidants and these may be used either as such or in combination with phenolics.
- Typical examples of non-phenolic antioxidants include: alkylated and non-alkylated aromatic amines such as aromatic monoamines of the formula R 8 R 9 R 10 N where R 8 is an aliphatic, aromatic or substituted aromatic group, is an aromatic or a substituted aromatic group, and R 10 is H, alkyl, aryl or R 11 S(0) x R 1 ⁇ where R 11 is an alkylene, alkenylene, or aralkylene group, R " is a higher alkyl group, or an alkenyl, aryl, or alkaryl group, and x is 0, 1 or 2.
- the aliphatic group R may contain from 1 to 20 carbon atoms, and preferably contains from 6 to 12 carbon atoms.
- the aliphatic group is an aliphatic group.
- both R 8 and R 9 are aromatic or substituted aromatic groups, and the aromatic group may be a fused ring aromatic group such as naphthyl.
- Aromatic groups R L and R may be joined together with other groups such as S.
- Typical aromatic amines antioxidants have alkyl substituent groups of at least 6 carbon atoms.
- Examples of aliphatic groups include hexyl, heptyl, octyl, nonyi, and decyl. Generally, the aliphatic groups will not contai more than 14 carbon atoms.
- the general types of amine antioxidants useful in the present compositions include diphenylamines, phenyl naphthylamines, phenothiazines, imidodibenzyls and diphenyl phenylene diamines. Mixtures of two or more aromatic amines are also useful. Polymeric amine antioxidants can also be used.
- aromatic amine antioxidants useful in the present disclosure include: ⁇ , ⁇ '-dioctyldiphenylamine; t-octylphenyl-alpha- naphthylamine; phenyl-alphanaphthylamine; and p-octylphenyl-alpha- naphthylamine.
- the preferred amine antioxidants in this disclosure include polymeric or oligomeric amines which are the polymerization reaction products of one or more substituted or hydrocarbyl-substituted diphenyl amines, one or more unsubstituted or hydrocarbyl-substituted phenyl naphthyl. amines, or both one or more of unsubstituted. or hydrocarbyl-substituted diphenyiamme with one or more unsubstituted or hydrocarbyl-substituted phenyl naphthylamine.
- a representative schematic is presented below:
- I is a styrene or C j to C 30 alkyl
- R ' is a styrene or Ci to C 30 alkyl
- R is a styrene or Ci to C 30 alkyl
- preferably R 2 is a Ci to C 30 alkyl
- R 3 is a C-, to C 30 alkyl
- R 4 is a C ⁇ to C o alkyl, more preferably R ?.
- R 3 is a €4 to CIO alkyl
- R 4 is a C4 to CIO alkyl
- p, q and y individually range from 0 to up to the valence of the aryl group to which the respective R groups are attached, preferably at least one of p, q and y range from 1 to up to the valence of the aryl group to which the respective R group(s) are attached, more preferably p, q and y each individually range from at least 1 to up to the valence of the aryl group to which the respective R groups are attached,
- Polymeric or oligomeric amines are commercially available from Nyco S.A. under the trade designation of Nycoperf A0337.
- the polymeric or oligomeric amine antioxidant is present in an amount in the range 0.5 to 10 wt % (active ingredient), preferably 2 to 5 wt % (active ingredient) of polymerized aminic antioxidant exclusive of any unpolymerized aryl amine which may be present or any added antioxidants.
- Sulfurized alkyl phenols and alkali or alkaline earth metal salts thereof also are useful antioxidants.
- Preferred antioxidants also include hindered phenols, arylamines. These antioxidants may be used individually b ⁇ type or in combination with one another. Such additives may be used in an amount of 0.01 to 5 weight percent. preferably 0.01 to 1.5 weight percent, more preferably zero to less than 1.5 weight percent, more preferably zero to less than 1 weight percent.
- pour point depressants also known as lube oil flow improvers
- pour point depressants may be added to lubricating compositions of the present disclosure to lower the minimum temperature at which the fluid will flow or can be poured.
- suitable pour point depressants include polymethacrylates, polyacrylates, polyarylamides, condensation products of haloparaffin waxes and aromatic compounds, vinyl carboxylate polymers, and terpolymers of dialkylfumarates, vinyl esters of fatty acids and ally! vinyl ethers.
- Seal compatibility agents help to swell elastomeric seals by causing a chemical reaction in the fluid or physical change in the elastomer.
- Suitable seal compatibility agents for lubricating oils include organic phosphates, aromatic esters, aromatic hydrocarbons, esters (butylbenzyl phthalate, for example), and polybutenyl succinic anhydride. Such additives may be used in an amount of about 0.01 to 3 weight percent, preferably about 0.01 to 2 weight percent.
- Anti-foam agents may advantageously be added to lubricant compositions. These agents retard the formation of stable foams. Silicones and organic polymers are typical anti-foam agents. For example, polysiloxanes, such as silicon oil or polydimethyl siloxane, provide antifoam properties. Anti-foam agents are commercially available and may be used in conventional minor amounts along with other additives such as dem lsifiers; usually the amount of these additives combined is less than 1 weight percent and often less than 0.1 weight percent.
- Antirust additives are additives that protect lubricated metal surfaces against chemical attack by water or other contaminants. A wide variety of these are commercially available.
- One type of antirust additive is a polar compound that wets the metal surface preferentially, protecting it with a film of oil.
- Another type of antirust additive absorbs water by incorporating it in a water-in-oil emulsion so that only the oil touches the metal surface.
- Yet another type of antirust additive chemically adheres to the metal to produce a non-reactive surface.
- suitable additives include zinc dithiophosphates, metal phenolates, basic metal sulfonates, fatty acids and amines. Such additives may be used in an amount of about 0.01 to 5 weight percent, preferably about 0.01 to 1.5 weight percent.
- a friction modifier is any material or materials that can alter the coefficient of friction of a surface lubricated by any lubricant or fluid containing such material(s).
- Friction modifiers also known as friction reducers, or lubricity agents or oiliness agents, and other such agents that change the ability of base oils, formulated lubricant compositions, or functional fluids, to modify the coefficient of friction of a lubricated surface may be effectively used in combination with the base oils or lubricant compositions of the present disclosure if desired. Friction modifiers that lower the coefficient of friction are particularly advantageous in combination with the base oils and lube compositions of this disclosure.
- Illustrative friction modifiers may include, for example, organometallic compounds or materials, or mixtures thereof.
- Illustrative organometallic friction modifiers useful in the lubricating engine oil formulations of this disclosure include, for example, molybdenum amine, molybdenum diamine, an organotungstenate, a molybdenum dithiocarbamate, molybdenum dithiophosphates, molybdenum amine complexes, molybdenum carboxylates, and the like, and mixtures thereof. Similar tungsten based compounds may be preferable.
- illustrative friction modifiers useful in the lubricating engine oil formulations of this disclosure include, for example, alkoxylated fatty acid esters, alkanolamides, polyol fatty acid esters, borated glycerol fatty acid esters, fatty alcohol ethers, and mixtures thereof.
- Illustrative alkoxylated fatty acid esters include, for example, polyoxyethylene stearate, fatty acid polyglycol ester, and the like. These can include polyoxypropylene stearate, polyoxybutylene stearate, polyoxyethylene isosterate, polyoxypropylene isostearate, polyoxyethylene palmitate, and the like.
- Illustrative alkanolamides include, for example, lauric acid diethylalkanolamide, palmic acid diethylalkanolamide, and the like. These can include oleic acid diethyalkanolamide, stearic acid dietliylalkanolamide, oleic acid dietliylalkanolamide, polyethoxylated liydrocarbylamides, polvpropoxylated hydrocarbylamides, and the like.
- Illustrative polyol fatty acid esters include, for example, glycerol mono-oleate, saturated mono-, di-, and tri-glyceride esters, glycerol mono- stearate, and the like. These can include polyol esters, hydroxyl -containing polyol esters, and the like.
- Illustrative borated glycerol fatty acid esters include, for example, borated glycerol mono-oleate, borated saturated mono-, di-, and tri-glyceride esters, borated glycerol mono-sterate, and the like, in addition to glycerol polyols, these can include trimethylolpropane, pentaerythritol, sorbitan, and the like. These esters can be polvol monocarboxvlate esters, polvol dicarboxvlate esters, and on occasion polyoltricarboxylate esters.
- Preferred can be the glycerol mono-oleates, glycerol dioleates, glycerol trioleates, glycerol monostearates, glycerol distearates, and glycerol tristearates and the corresponding glycerol monopalmitates, glycerol dipalmitates, and glycerol tripalmitates, and the respective isostearates, linoleates, and the like.
- the glycerol esters can be preferred as well as mixtures containing any of these. Ethoxylated, propoxylated, butoxylated fatty acid esters of polyols, especially using glycerol as underlying polyol can be preferred.
- Illustrative fatty alcohol ethers include, for example, stearyl ether, myristyl ether, and the like. Alcohols, including those that have carbon numbers from C3 to C5, can be ethoxylated, propoxylate, or butoxylated to form the corresponding fatty alkyl ethers.
- the underlying alcohol portion can preferably be stearyl, myristyl, CI 1 - CO hydrocarbon, oleyl, isosteryl, and the like.
- Useful concentrations of friction modifiers may range from 0.01 weight percent to 5 weight percent, or about 0.1 weight percent to about 2.5 weight percent, or about 0.1 weight percent to about 1.5 weight percent, or about 0.1 weight percent to about 1 weight percent.
- Mo metal concentration Concentrations of molybdenum- containing materials are often described in terms of Mo metal concentration. Advantageous concentrations of Mo may range from 25 ppm to 2000 ppm or more, and often with a preferred range of 50-1500 ppm. Friction modifiers of all types may be used alone or in mixtures with the materials of this disclosure. Often mixtures of two or more friction modifiers, or mixtures of friction modifier(s) with alternate surface active material(s), are also desirable.
- Typical amounts of such additives useful in the present disclosure are shown in Table 1 below.
- Anti-foam Agent 0.001-3 0.001-0.15
- additives are all commercially available materials. These additives may be added independently but are usually precombined in packages wiiich can be obtained from suppliers of lubricant oil additives. Additive packages with a variety of ingredients, proportions and characteristics are available and selection of the appropriate package will take the requisite use of the ultimate composition into account.
- Formulations were prepared as described in Fig, 1. All of the ingredients used are commercially available.
- the base oils used in the formulations included a diisooctyl adipate base oil (Base Oil 1) and a mono- pentaerythritol ester of branched acids base oil (Base Oil 2).
- the additives used in the formulations included an octylated/butylated diplienvlamine antioxidant (Antioxidant 1), an octylated phenyl-alpha-naphmylamine antioxidant (Antioxidant 2), a polymeric amine antioxidant (Antioxidant 3), a PPG (polypropylene glycol)- 15 Stearyl ether nonionic detergent (Nonionic Detergent 1), an amine phosphate ashless antiwear and corrosion inhibitor additive (Ashless Antiwear 1), an amine phosphate mixture ashless antiwear additive (Ashless Antiwear 2), an amine salt of sulfurized phosphate ashless antiwear additive (Ashless Antiwear 3), a mixture of molybdenum, a primary and a secondary zinc dialkyi dithiophosphate antiwear additives (Antiwear Mixture ⁇ ), and the rest of additives (Other Additives).
- Antioxidant 1 an octylated/butylated dip
- Isooctane a standard reference fuel for combustion in gasoline engine (Octane level 100), was used as a diluent to which the formulations were tested.
- Base Oil 1 based on its chemical structure, about 18% of the total carbons or 25% of the total alkyl carbons in the ester are in the form of methyl groups, and in Base Oil 2, based on carbon- 13 NMR analysis, about 42% of the carbons are in the form of methyl group.
- Blend 7 and Conventional Synthetic Engine Oil are included for comparative purposes.
- Fig. 1 Testing was conducted for formulations described in Fig. 1. The results are set forth in Fig. 2. Kinematic viscosity testing at 40°C and 100°C was determined in accordance with ASTM D445. Apparent viscosity testing was determined in accordance with ASTM D4683 at 100°C. Silver, aluminum, boron, barium, calcium, chromium, copper, iron, potassium, magnesium. manganese, molybdenum, sodium, nickel, phosphorus, lead, silicon, tin, titanium, vanadium and zinc content were determined in accordance with ASTM D5185.
- a Herzogs Cetane ID 510 analyzer was used to measure ignition delay and combustion delay using a constant volume combustion chamber. Equipment setting and operating conditions are based on ASTM D7668-14a. The results are reported as relative values normalized to the latest pure isooctane data. Isooctane, a standard reference fuel for combustion i gasoline engine (Octane level 100), was used as a diluent to whic the lubricant formulations were tested. Pure isooctane data were generated periodically. In this test, a function of ignition and combustion delay times correlates with cetane number of diesel fuel, which is known to be inversely proportional to the octane number of gasoline fuel.
- Relative ignition delay is the ignition delay of the blend, divided by the ignition delay of isooctane and has no units.
- Relative combustion delav is the combustion delav of the blend, divided by the combustion delay of isooctane and also has no units.
- Relative ignition delay data (normalized to isooctane) generated from the Herzogs Cetane ID 510 analyzer testing of the various lubricant base oils in isooctane are given in Fig. 2.
- the relative ignition delays of Blends 2 to 5 in Fig. 2 w r ere lower than those of their base oil (Base Oil 1) but significantly higher than those of the conventional synthetic engine oil, when I vol% or 5 vol% of the blends were added to isooctane.
- Blends 5 and 6 in Fig. 2 were lower than those of their base oil (Base Oil 2) but higher than those of the blend (Blend 8) with ash-container conventional Antiwear (Antiwear 1), w r hen I vol% or 5 vol% of the blends were added to isooctane.
- Antiwear 1 ash-container conventional Antiwear
- w r hen I vol% or 5 vol% of the blends were added to isooctane.
- the relative ignition delays of Blends 5 and 6 in Fig. 2 were significantly higher than those of the conventional synthetic engine oil, when 1 vol% or 5 vol% of the blends were added to isooctane.
- the additives used in the formulations included an octylated phenyl-alpha- naphthylamine antioxidant (Antioxidant 2), a polymeric amine antioxidant (Antioxidant 3), a PPG (polypropylene glycol)- 15 Stearyl ether nonionic detergent (Nonionic Detergent 1), an amine phosphate ashless antiwear and corrosion inhibitor additive (Ashless Antiwear 1), an amine phosphate mixture ashless antiwear additive (Ashless Antiwear 2), an amine salt of sulfurized phosphate ashless antiwear additive (Ashless Antiwear 3), a dithiophosphate ashless antiwear additive (Ashless Antiwear 4), a dithiophosphate ashless antiwear additive (Ashless Antiwear 5), an amine phosphate ashless antiwear additive (Ashless Antiwear 6), a dithiophosphate ashless antiwear additive (Ashless Antiwear 7), a dithiophosphate ash,
- Isooctane a standard reference fuel for combustion in gasoline engine (Octane level 100), was used as a diluent to which the formulations were tested.
- Base Oil 2 based on carbon- 13 NMR analysis, about 42% of the carbons are in the form of methyl group.
- Oxidation temperature was determined b ⁇ High Pressure Differential Scamiing calorimetry (HPDSC).
- HPDSC High Pressure Differential Scamiing calorimetry
- the oxidation onset temperature was measured with a Universal V4.5A TA instrument equipped with a Q20 Tzero Pressure DSC Cell.
- the test method is similar to ASTM E2009-08 ' Test Method B except that 500 psig of air was used instead of 500 psig of oxygen and the sample size was 3.0 +/-0.2 mg.
- the pressurized sample was first equilibrated at 50°C and then ramped up to 400°C at 10°C/min.
- Blend 5 contained an octylated phenyl-alpha-naphthylamine antioxidant and an amine phosphate ashless antiwear additive
- Blend 6 contained a polymeric amine antioxidant and the same amine phosphate ashless antiwear additive.
- Blend 8 which did not contains aminic antioxidant.
- Blends 5 and 6 showed higher oxidation temperatures.
- Blend 6 showed significant advantages compared with Blends 5 and 8.
- the other blends (Blends 9-19) all contains both an aminic antioxidant and at least one phosphorus (and sulfur in some cases) containing ashless antiwear additive. These blends (Blends 9-19) all showed exceptionally high oxidation temperature, reflecting their good oxidation stability.
- the MTM reciprocating wear test w r as conducted on a mini- traction machine (MTM) from PCS Instruments.
- the Reciprocating option (Part Code MTMRO) from PCS Instrument was used.
- the tests were conducted at 110°C at a pressure of 1.0 GPa and a test length of 1.25 lir., with a strike length of 8 mm, ball speed of 60 mm/s, and frequency of 15 Hz.
- the wear scars were measured using a Veeco Dektak 150 surface prolilometer. The area reported was an average of three cross-sectional measurements of the wear scar. Negative area represents wear and positive area represents film formation.
- Blend 5 contained an octylated phenyl-alpha-naphthylamine antioxidant and an amine phosphate ashless antiwear additive
- Blend 6 contained a polymeric amine antioxidant and the same amine phosphate ashless antiwear additive.
- Blends 5 and 6 showed lower positive film formation, indicating improved wear protection, while Blend 8 showed observable wear.
- Blend 6 showed significant advantages compared with Blends 5 and Blend 8.
- the other blends (Blends 9-19) all contains both an aminic antioxidant and at least one phosphorus (and sulfur in some cases) containing ashless antiwear additive. These blends (Blends 9-19) all show r ed positive film formation except Blend 18 which contained a nonylated triphenyl phosphorothionate ashless antiwear additive.
- Formulations were prepared as described in Fig. 5.
- the base oils used in the formulations are a 3, 5, 5 -trim ethyl 1-hexyl 3,5,5,-trimethy! 1- hexanoate mono-ester (Base Oil 3), a di-3,5,5-trimethyl 1-hexyl adipate diester (Base Oil 4), a neopentyl glycol di-3,5,5-trimethyl-l-hexanoate polyol ester
- Base Oil 5 a trimethylolpropane tri ⁇ 3,5,5-trimethyl-l-hexanoate polyol ester
- Base Oil 7 an mono pentaerythritol tetra-3,5,5-trimethyl-l-hexanoate polyol ester
- the additives used in the formulations included an octylated/butyiated diphenylamine antioxidant antioxidant (Antioxidant 1), a polymeric amine antioxidant (Antioxidant 3), a PPG (polypropylene glycol)- 15 Stearyl ether nonionic detergent (Nonionic Detergent 1), a amine phosphate ashless antiwear and corrosion inliibitor additive (Ashless Anti ear 1), a dithiophosphate ashless antiwear additive (Ashless Antiwear 7), and the rest of additives (Other Additives).
- Antioxidant 1 octylated/butyiated diphenylamine antioxidant antioxidant
- Antioxidant 3 a polymeric amine antioxidant
- PPG polypropylene glycol
- Stearyl ether nonionic detergent Nonionic Detergent 1
- a amine phosphate ashless antiwear and corrosion inliibitor additive Ashless Anti ear 1
- Isooctane a standard reference fuel for combustio in gasoline engine (Octane level 100), was used as a diluent to which the formulations were tested.
- Base Oil 3 based on its chemical structure, about 44% of the carbons are in the form of methyl groups.
- Base Oil 4 based on its chemical structure, about 33% of the carbons are in the form of methyl groups.
- Base Oil 5 based on its chemical structure, about 43% of the carbons are in the form of methyl group.
- Base Oil 6 based on its chemical structure, about 39% of the carbons are in the form of methyl groups.
- Base Oil 7 based on its chemical structure, about 39% of the carbons are in the form of methyl groups.
- Oxidation temperature was determined b ⁇ High Pressure Differential Scanning calorimetry (HPDSC).
- HPDSC High Pressure Differential Scanning calorimetry
- the oxidation onset temperature was measured with a Universal V4.5A TA instrument equipped with a Q20 Tzero Pressure DSC Cell.
- the test method is similar to ASTM E2009-08 Test Method B except that 500 psig of air was used instead of 500 psig of oxygen and the sample size was 3.0 +/-0.2 mg.
- the pressurized sample was first equilibrated at 50°C and then ramped up to 400°C at 10°C/min. Blends 23 and 24 showed exceptionally high oxidation temperature, reflecting their excellent oxidation stability'.
- the MTM reciprocating wear test was conducted on a mini- traction machine (MTM) from PCS Instruments.
- the Reciprocating optio (Part Code MTMRO) from PCS Instrument was used.
- the tests were conducted at 110°C at a pressure of 1.0 GPa and a test length of 1.25 hr., with a strike length of 8 mm, ball speed of 60 mm/s, and frequency of 15 Hz.
- the wear scars were measured using a Veeco Dektak 150 surface prolilometer. The area reported was an average of three cross-sectional measurements of the wear scar. Negative area represents wear and positive area represents film formation. Blends 20 to 24 all showed good antiwear film formation.
Applications Claiming Priority (2)
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US201562189387P | 2015-07-07 | 2015-07-07 | |
PCT/US2016/040316 WO2017007669A1 (en) | 2015-07-07 | 2016-06-30 | Composition and method for preventing or reducing engine knock and pre-ignition in high compression spark ignition engines |
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EP3320065A1 true EP3320065A1 (de) | 2018-05-16 |
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ID=56409721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP16738626.7A Withdrawn EP3320065A1 (de) | 2015-07-07 | 2016-06-30 | Zusammensetzung und verfahren zur verhinderung oder verminderung von motorklopfen und -vorzündung in ottomotoren mit hoher verdichtung |
Country Status (4)
Country | Link |
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US (1) | US20170009179A1 (de) |
EP (1) | EP3320065A1 (de) |
SG (1) | SG10201913560UA (de) |
WO (1) | WO2017007669A1 (de) |
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FR3039836B1 (fr) * | 2015-08-06 | 2017-09-15 | Total Marketing Services | Compositions lubrifiantes pour prevenir ou diminuer le pre-allumage dans un moteur |
US20190062667A1 (en) * | 2017-08-25 | 2019-02-28 | Exxonmobil Research And Engineering Company | Ashless engine lubricants for high temperature applications |
CN109135889A (zh) * | 2018-08-14 | 2019-01-04 | 青岛冠军石油化学有限公司 | 一种含酯类化合物的高效清净型发动机油及其制备方法 |
WO2020085228A1 (ja) * | 2018-10-22 | 2020-04-30 | 出光興産株式会社 | 潤滑油組成物及びその製造方法 |
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US4826633A (en) * | 1986-10-16 | 1989-05-02 | Hatco Chemical Corporation | Synthetic lubricant base stock of monopentaerythritol and trimethylolpropane esters |
DE69007264T2 (de) * | 1989-12-28 | 1994-07-28 | Nippon Oil Co Ltd | Kühlschranköle zum Gebrauch mit Hydrogen enthaltenden Halogenocarbonkühlmitteln. |
US5489711A (en) * | 1994-12-20 | 1996-02-06 | The B. F. Goodrich Company | Synthetic lubricant antioxidant from monosubstituted diphenylamines |
US6436881B1 (en) * | 2001-06-01 | 2002-08-20 | Hatco Corporation | High temperature lubricant composition |
US6884761B2 (en) * | 2001-12-18 | 2005-04-26 | Bp Corporation North America Inc. | High temperature stable lubricant mixed polyol ester composition containing an aromatic carboxylic acid and method for making the same |
GB0703831D0 (en) * | 2007-02-28 | 2007-04-11 | Croda Int Plc | Engine lubricants |
US8980808B2 (en) * | 2011-08-03 | 2015-03-17 | Cognis Ip Management Gmbh | Lubricant compositions with improved oxidation stability and service life |
US20140165942A1 (en) * | 2012-12-18 | 2014-06-19 | Ford Global Technologies, Llc | Engine-lubricant octane boost to quiet sporadic pre-ignition |
-
2016
- 2016-06-30 EP EP16738626.7A patent/EP3320065A1/de not_active Withdrawn
- 2016-06-30 US US15/198,120 patent/US20170009179A1/en not_active Abandoned
- 2016-06-30 WO PCT/US2016/040316 patent/WO2017007669A1/en active Application Filing
- 2016-06-30 SG SG10201913560UA patent/SG10201913560UA/en unknown
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SG10201913560UA (en) | 2020-03-30 |
US20170009179A1 (en) | 2017-01-12 |
WO2017007669A1 (en) | 2017-01-12 |
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