GB1055429A - Organic polymeric salts and lubricating oil compostitions containing such salts - Google Patents
Organic polymeric salts and lubricating oil compostitions containing such saltsInfo
- Publication number
- GB1055429A GB1055429A GB49817/63A GB4981763A GB1055429A GB 1055429 A GB1055429 A GB 1055429A GB 49817/63 A GB49817/63 A GB 49817/63A GB 4981763 A GB4981763 A GB 4981763A GB 1055429 A GB1055429 A GB 1055429A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphonic acid
- salts
- lubricating oil
- salt
- alkylene
- 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.)
- Expired
Links
- 150000003839 salts Chemical class 0.000 title abstract 8
- 239000010687 lubricating oil Substances 0.000 title abstract 6
- 239000002585 base Substances 0.000 abstract 6
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 abstract 6
- 125000002947 alkylene group Chemical group 0.000 abstract 5
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical class OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 abstract 5
- -1 alkyl sulphonic acid Chemical compound 0.000 abstract 4
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract 4
- 239000002253 acid Substances 0.000 abstract 3
- 125000003118 aryl group Chemical group 0.000 abstract 3
- 229920001577 copolymer Polymers 0.000 abstract 3
- 229920000768 polyamine Polymers 0.000 abstract 3
- 229920000642 polymer Polymers 0.000 abstract 3
- 229960002317 succinimide Drugs 0.000 abstract 3
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 abstract 2
- 150000007513 acids Chemical class 0.000 abstract 2
- 239000000654 additive Substances 0.000 abstract 2
- 230000000996 additive effect Effects 0.000 abstract 2
- 125000000732 arylene group Chemical group 0.000 abstract 2
- 239000000284 extract Substances 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 230000002401 inhibitory effect Effects 0.000 abstract 2
- 239000003350 kerosene Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 239000003208 petroleum Substances 0.000 abstract 2
- 239000000047 product Substances 0.000 abstract 2
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 abstract 1
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical class ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 abstract 1
- RXXCIBALSKQCAE-UHFFFAOYSA-N 3-methylbutoxymethylbenzene Chemical compound CC(C)CCOCC1=CC=CC=C1 RXXCIBALSKQCAE-UHFFFAOYSA-N 0.000 abstract 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 abstract 1
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 125000002877 alkyl aryl group Chemical group 0.000 abstract 1
- 150000008064 anhydrides Chemical class 0.000 abstract 1
- 150000004982 aromatic amines Chemical class 0.000 abstract 1
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical group N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 239000003599 detergent Substances 0.000 abstract 1
- IUNMPGNGSSIWFP-UHFFFAOYSA-N dimethylaminopropylamine Chemical compound CN(C)CCCN IUNMPGNGSSIWFP-UHFFFAOYSA-N 0.000 abstract 1
- 239000010685 fatty oil Substances 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000003879 lubricant additive Substances 0.000 abstract 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 239000002480 mineral oil Substances 0.000 abstract 1
- 235000010446 mineral oil Nutrition 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- QOHMWDJIBGVPIF-UHFFFAOYSA-N n',n'-diethylpropane-1,3-diamine Chemical compound CCN(CC)CCCN QOHMWDJIBGVPIF-UHFFFAOYSA-N 0.000 abstract 1
- 239000003921 oil Substances 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 1
- 239000010452 phosphate Substances 0.000 abstract 1
- 229920001083 polybutene Polymers 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
- 229940014800 succinic anhydride Drugs 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 239000010689 synthetic lubricating oil Substances 0.000 abstract 1
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 abstract 1
- 150000003568 thioethers Chemical class 0.000 abstract 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/30—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
- C07D207/34—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D207/36—Oxygen or sulfur atoms
- C07D207/40—2,5-Pyrrolidine-diones
- C07D207/404—2,5-Pyrrolidine-diones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms, e.g. succinimide
- C07D207/408—Radicals containing only hydrogen and carbon atoms attached to ring carbon atoms
- C07D207/412—Acyclic radicals containing more than six carbon atoms
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/34—Introducing sulfur atoms or sulfur-containing groups
- C08F8/36—Sulfonation; Sulfation
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- C08F8/00—Chemical modification by after-treatment
- C08F8/46—Reaction with unsaturated dicarboxylic acids or anhydrides thereof, e.g. maleinisation
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- C08F8/48—Isomerisation; Cyclisation
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- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/52—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of 30 or more atoms
- C10M133/56—Amides; Imides
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- C08F2810/00—Chemical modification of a polymer
- C08F2810/50—Chemical modification of a polymer wherein the polymer is a copolymer and the modification is taking place only on one or more of the monomers present in minority
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
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- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
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- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
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- 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
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- C10M2207/34—Esters having a hydrocarbon substituent of thirty or more carbon atoms, e.g. substituted succinic acid derivatives
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- C10M2207/402—Castor oils
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/40—Fatty vegetable or animal oils
- C10M2207/404—Fatty vegetable or animal oils obtained from genetically modified species
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- 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
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
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- 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
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/042—Metal 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
- C10M2223/045—Metal containing thio derivatives
-
- 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
- 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
- C10M2223/06—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having phosphorus-to-carbon bonds
- C10M2223/065—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having phosphorus-to-carbon bonds containing sulfur
-
- 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
- C10M2223/12—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions obtained by phosphorisation of organic compounds, e.g. with PxSy, PxSyHal or PxOy
-
- 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
- C10M2225/00—Organic macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2225/04—Organic macromolecular compounds containing phosphorus as ingredients in lubricant compositions obtained by phosphorisation of macromolecualr compounds not containing phosphorus in the monomers
-
- 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
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
-
- 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
- C10N2010/00—Metal present as such or in compounds
- C10N2010/04—Groups 2 or 12
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Lubricants (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US245682A US3189544A (en) | 1962-12-19 | 1962-12-19 | Non-ash-containing lubricating oil composition |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1055429A true GB1055429A (en) | 1967-01-18 |
Family
ID=22927641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB49817/63A Expired GB1055429A (en) | 1962-12-19 | 1963-12-17 | Organic polymeric salts and lubricating oil compostitions containing such salts |
Country Status (6)
Country | Link |
---|---|
US (1) | US3189544A (enrdf_load_stackoverflow) |
BE (1) | BE641399A (enrdf_load_stackoverflow) |
DE (1) | DE1444910A1 (enrdf_load_stackoverflow) |
FR (1) | FR1377810A (enrdf_load_stackoverflow) |
GB (1) | GB1055429A (enrdf_load_stackoverflow) |
NL (1) | NL302077A (enrdf_load_stackoverflow) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2449723A1 (fr) * | 1978-12-04 | 1980-09-19 | Chevron Res | Additifs dispersants pour huiles de graissage et leur procede de preparation |
EP0017690A1 (en) * | 1978-12-29 | 1980-10-29 | Exxon Research And Engineering Company | Oil-soluble sulfonated polyols and sulfonated polyolesters and their preparation |
DE3132220A1 (de) * | 1980-08-25 | 1982-05-13 | Exxon Research and Engineering Co., 07932 Florham Park, N.J. | Schmieroel mit verbesserter dispersitaet in dieselmotoren |
EP1707616A3 (en) * | 2005-03-31 | 2010-01-27 | Chevron Oronite Company LLC | Fused-ring aromatic amine based wear and oxidation inhibitors for lubricants |
Families Citing this family (69)
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US3316177A (en) * | 1964-12-07 | 1967-04-25 | Lubrizol Corp | Functional fluid containing a sludge inhibiting detergent comprising the polyamine salt of the reaction product of maleic anhydride and an oxidized interpolymer of propylene and ethylene |
US3401117A (en) * | 1966-11-03 | 1968-09-10 | Phillips Petroleum Co | Reaction products of metal petroleum sulfonate, maleic anhydride and an amine as lubricant additives |
US3755167A (en) * | 1970-03-24 | 1973-08-28 | Mobil Oil Corp | Coordinated complexes of nitrogenous compounds |
BE785990A (fr) * | 1971-07-07 | 1973-01-08 | Phillips Petroleum Co | Additifs sans cendres pour compositions |
US3926820A (en) * | 1974-09-23 | 1975-12-16 | Mobil Oil Corp | Grease compositions |
US4144181A (en) * | 1977-04-29 | 1979-03-13 | Exxon Research & Engineering Co. | Polymeric additives for fuels and lubricants |
US5777025A (en) * | 1996-02-09 | 1998-07-07 | Exxon Chemical Patents Inc. | Process for preparing polyalkenyl substituted C4 to C10 dicarboxylic acid producing materials |
US5891953A (en) * | 1996-02-09 | 1999-04-06 | Exxon Chemical Patents Inc | Process for preparing polyalkenyl substituted mono- and dicarboxylic acid producing materials (PT-1302) |
US6015776A (en) | 1998-09-08 | 2000-01-18 | Chevron Chemical Company | Polyalkylene polysuccinimides and post-treated derivatives thereof |
US6156850A (en) * | 1998-09-16 | 2000-12-05 | Chevron Chemical Company Llc | Process for making polyalkenyl derivative of an unsaturated acidic reagent |
US6867171B2 (en) * | 2002-11-27 | 2005-03-15 | Chevron Oronitz Company Llc | Low molecular weight branched alkenyl succinic acid derivatives prepared from low molecular weight polyisobutene and unsaturated acidic reagents |
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Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL108234C (enrdf_load_stackoverflow) * | 1956-01-18 | |||
US3025240A (en) * | 1957-08-28 | 1962-03-13 | Sinclair Refining Co | Petroleum oil composition |
US3038857A (en) * | 1958-11-10 | 1962-06-12 | Sun Oil Co | Lubricants containing additives |
US3041279A (en) * | 1959-12-07 | 1962-06-26 | Shell Oil Co | Lubricating oil compositions |
NL262417A (enrdf_load_stackoverflow) * | 1960-03-15 | |||
US3087936A (en) * | 1961-08-18 | 1963-04-30 | Lubrizol Corp | Reaction product of an aliphatic olefinpolymer-succinic acid producing compound with an amine and reacting the resulting product with a boron compound |
-
0
- NL NL302077D patent/NL302077A/xx unknown
-
1962
- 1962-12-19 US US245682A patent/US3189544A/en not_active Expired - Lifetime
-
1963
- 1963-12-17 DE DE19631444910 patent/DE1444910A1/de not_active Withdrawn
- 1963-12-17 BE BE641399A patent/BE641399A/xx unknown
- 1963-12-17 GB GB49817/63A patent/GB1055429A/en not_active Expired
- 1963-12-18 FR FR957606A patent/FR1377810A/fr not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2449723A1 (fr) * | 1978-12-04 | 1980-09-19 | Chevron Res | Additifs dispersants pour huiles de graissage et leur procede de preparation |
EP0017690A1 (en) * | 1978-12-29 | 1980-10-29 | Exxon Research And Engineering Company | Oil-soluble sulfonated polyols and sulfonated polyolesters and their preparation |
DE3132220A1 (de) * | 1980-08-25 | 1982-05-13 | Exxon Research and Engineering Co., 07932 Florham Park, N.J. | Schmieroel mit verbesserter dispersitaet in dieselmotoren |
EP1707616A3 (en) * | 2005-03-31 | 2010-01-27 | Chevron Oronite Company LLC | Fused-ring aromatic amine based wear and oxidation inhibitors for lubricants |
US8138130B2 (en) | 2005-03-31 | 2012-03-20 | Chevron Oronite Company Llc | Fused-ring aromatic amine based wear and oxidation inhibitors for lubricants |
Also Published As
Publication number | Publication date |
---|---|
FR1377810A (fr) | 1964-11-06 |
US3189544A (en) | 1965-06-15 |
DE1444910A1 (de) | 1968-11-07 |
BE641399A (enrdf_load_stackoverflow) | 1964-06-17 |
NL302077A (enrdf_load_stackoverflow) |
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