|Numéro de publication||US3361673 A|
|Type de publication||Octroi|
|Date de publication||2 janv. 1968|
|Date de dépôt||24 août 1959|
|Date de priorité||24 août 1959|
|Autre référence de publication||DE1444798A1, US3202678|
|Numéro de publication||US 3361673 A, US 3361673A, US-A-3361673, US3361673 A, US3361673A|
|Inventeurs||Robert G Anderson, Alan Y Drummond, Frank A Stuart|
|Cessionnaire d'origine||Chevron Res|
|Exporter la citation||BiBTeX, EndNote, RefMan|
|Citations de brevets (3), Référencé par (264), Classifications (53)|
|Liens externes: USPTO, Cession USPTO, Espacenet|
United States Patent LUBRICATING GIL COMPOSITIONS CONTAENING ALKENYL SUCCINIMIDES 0F TETRAETHYL- ENE PENTAMINE Frank A. Stuart, Oriuda, Robert G. Anderson, Novato, and Alan Y. Drumrnond, Richmond, Calitl, assignors to Chevron Research Company, a corporation of Delaware No Drawing. Filed Aug. 24, 1959, Ser. No. 835,437
6 Claims. (Cl. 252-515) This invention pertains to lubricating oil compositions having incorporated therein metal-free detergents. These particular metal-free detergents are N-substituted polyamine alkenyl succinimides.
Alkenyl succinic anhydrides and numerous derivatives thereof are well known in the art. For example, alkenyl succinic anhydrides in which the alkenyl radical contains from to 20 carbon atoms are taught as corrosion inhibitors in lubricating oil compositions. Also, products obtained by reacting such alkenyl succinic acid anhydrides with monoamines are taught as ferrous corrosion inhibitors for lubricating oil compositions.
However, the above known alkenyl succinimides are not useful as detergents in lubricating oil compositions. In contrast thereto, the N-substituted polyamine alkenyl succinimides which are described herein are new compounds which are useful as detergents in lubricating oil compositions.
Present day internal combustion engines operate at high speeds and high compression ratios. When used in the so-called city stop-and-go driving, which includes the greater part of the driving condition for a large percentage of todays automobiles, the internal combustion engines do not reach the most efficient operating temperature. Under city driving conditions, large amounts of partial oxidation products are formed, and reach the crankcase of the engine by blowing past the piston rings. Most of these partial oxidation products are oil insoluble, tending to form deposits on the various operating parts of the engine, such as the pistons, piston rings, etc. For the purpose of preventing the deposition of these products on the various engine parts, it is necessary to incorporate detergents in the lubricating oil compositions, thus keeping these polymeric products highly dispersed in a condition unfavorable for deposition on metals.
For the most part, the various detergents which are added to crankcase oils to reduce this formation of sludges and varnishes are metal organic compounds, particularly those compounds wherein the metal is linked to an or ganic group through an oxygen atom. Although these metal-containing organic compounds have some etfectiveness as detergents for dispersing the precursors of deposits within the oil itself rather than permitting Patented Jan. 2, 1968 lubricating oil compositions which are compounded with a metal-free detergent.
Therefore, in accordance with this invention, it has been discovered that lubricating oil compositions particularly useful for heavy duty service are obtained by incorporating N-substituted monoalkenyl succini-rnides derived from tetraethylene pentamine in oils of lubricating viscosity.
By the use of lubricating oil compositions containing the N-substituted alkenyl succinimides described herein, diesel and gasoline engine parts remain remarkably free of deposits and varnish, even under severe operating conditions.
These new compounds, which are monoalkenyl succinimides of tetraethylene pentamine, have the formula:
wherein R is a hydrocarbon radical having a molecular Weight from about 400 to about 3000; that is, R is a hydrocarbon radical containing about 30 to about 200 carbon atoms.
These alkenyl succinimides of tetraethylene pentamine can be prepared by reacting maleic anhydride with an olefinic hydrocarbon, followed by reacting the resulting alkenyl succinic anhydride with tetraethylene pentamine. The R radical of the above formula, that is, the alkenyl radical, is derived from an olefin containing from 2 to 5 carbon atoms. Thus, the alkenyl radical is obtained by polymerizing an olefin containing from 2 to 5 carbon atoms to form a hydrocarbon having a molecular weight ranging from about 400 to about 3000, more preferably, 900 to 1200. Such olefins are exemplified by ethylene, propylene, l-butene, Z-butene, isobutene, and mixtures thereof. Since the methods of polymerizing the olefins to form polymers thereof is immaterial in the formation of the new compound described herein, any of the numerous processes available can be used therefor.
The preparation of N-substituted monoalkenyl succinimides derived from tetraethylene pentamine can be described generally by the following equations, using a polymer of isobutene as an example of the alkenyl radical: I 0
them to form added deposits on the engine parts, I they have the disadvantage of forming ash deposits in the C 3 engine. These ash deposits lower engine performance by CH:C fouling plugs and valves, and contributing to preignition. 11
CH3 CH3 CH3 0 l I CH3CCH2-OH?' CH=CCH2OHC\ GEM-CH2 CHa n /O NH:C2H4N /NH 011 -0 CH2-CH2 CH3 CH3 CH 0 I I GHaCCHz-CHCIJ OH=CCHCHC\ CHPCHQ CH3 /n /NCH2CH2N /NH CHz-O CHa-CH:
It is a particular object of this invention to provide wherein n has a value of about 7 to about 50.
The above reaction between a polyolefin and maleic anhydride is an uncatalyzed addition reaction which should not be confused with a copolymerization reaction such as that obtained with a vinyl monomer and maleic anhydride. While the general reaction of an olefin and maleic anhydride is well known for olefins of low molecular weight (e.g., olefins of 18 carbon atoms), no previous work has been done with maleic anhydride and the high molecular weight olefins as described herein.
The reaction set forth and described by Equation I hereinabove can proceed in a mol ratio of the polyolefin to the maleic anhydride of 1:1 to 1:10, preferably from 1:1 to 1:5. The reaction temperature can vary from 300 F. to 450 F. Because of the greater yield of products obtained thereby, it is preferred to use the high range of temperatures (e.g., 375 F. to 450 F.). In the second step of the reaction as exemplified by Equation II hereinabove, the yield of the imide is extremely high even though the reactants are used in equal molar ratios. This is surprising, since under the conditions of the reaction there is an excess of secondary amino groups over primary amino groups, and any reaction with the secondary amino groups would lead to amide formation; thus, preventing imide formation.
The reaction described by Equation 11 hereinabove can be made at 220 F. to 500 F., preferably from 300 F. to 400 F. The alkenyl succinic anhydride and the tetraethylene pentamine are reacted in about equal molar quantities.
Since the reaction between the polyolefin and maleic anhydride may not go to completion, the resulting alkenyl succinic anhydride may contain some unreacted polyolefin. As it may not be desirable to separate out this unreacted polyolefin at this stage, the resulting imide formed by reaction of the alkenyl succinic anhydride and the diamine will contain this polyolefin as an impurity which can be a diluent in the formation of lubricating oil compositions. However, if it is so desired, this unreacted polyolefin can be removed by precipitation, for example, by acetone or methanol from a hydrocarbon solution.
Lubricating oils which can be used as base oils include a wide variety of lubricating oils, such as naphthenic base, paraflin base, and mixed base lubricating oils, other hydrocarbon lubricants, e.-g., lubricating oils derived from coal products, and synthetic oils, e.g., alkylene polymers (such as polymers of propylene) butylene, etc., and the mixtures thereof), alkylene oxide-type polymers (e.g., propylene oxide polymers) and derivatives, including alkylene oxide polymers prepared by polymerizing the alkylene oxide in the presence of water or alcohols, e.g., ethyl alcohol, dicarboxylic acid esters (such as those which are prepared by esterifying such dicarboxylic acids as adipic acid, azelaic acid, suben'c acid, sebacic acid, salkanol succinic acid, fumaric acid, maleic acid, etc., with alohols such as butyl alcohol, hexyl alcohol, 2-ethyl hexyl alcohol, dodecyl alcohol, etc.), liquid esters of acids of phosphorus, alkyl benzenes (e.g., monoalkyl benzene such as dodecyl benzene, tetradecyl benzene, etc., and dialkyl benzenes (e.g., n-nonyl Z-ethyl hexyl benzene); polyphenyls (e.g., biphenyls and terphenyls), alkyl biphenyl ethers, polymers of silicon (e.g., tetraethyl silicate, tetraisopropyl silicates, tetra(4-methyl-2-tetraethyl) silicate, hexyl (4-methyl-2-pentoxy) disiloxane, poly(methyl) siloxane, poly(methylphenyl) siloxane, etc. Synthetic oils of the alkylene oxide-type polymers which may be used include those exemplified by the alkylene oxide polymers.
The above base oils may be used individually or in combinations thereof, wherever miscible or wherever made so by the use of mutual solvents.
The alkenyl succinimides of tetraalkylene pentamine can be used in oils of lubricating viscosity in amounts of 0.1% to 80%, by weight, preferably 0.25% to 5%, by weight.
The preparation of the alkenyl succinimides of tetraalkylene pent-amine is illustrated in the following examples.
Example I.-Preparati0n 0f polybutenyl succinic anhydride A mixture of 1000 grams (1 mol) of polybutene having a molecular weight of about 1000 and 98 grams (1 mol) of maleic anhydride was heated at 410 F. in a nitrogen atmosphere with agitation for a period of 24 hours. The reaction mixture was cooled to 150 F. and 700 cc. of hexane added; after which the mixture was filtered under vacuum. After vacuum distillation to remove the hexane from the filtrate, the product was maintained at 350 F. at an absolute pressure of 10 mm. Hg for one hour to remove traces of maleic anhydride. The crude polybutenyl succinic anhydride thus prepared had a saponification number of 79.
Example I1.Preparati0n of tetraethylenepentamine derivative 0 the polybutenyl succinic anhydride of Example l hereinabove A mixture of 84 grams (0.45 mol) of tetraethylene pentamine and 702 grams (0.45 mol) of the polybutenyl succinic anhydride of Example I hereinabove, was blended with agitation at 125 F. in a nitrogen atmosphere. The temperature was increased to 400 F. during a period of one hour, after which the absolute pressure was reduced to about 200 mm. Hg during a period of 30 minutes to facilitate the removal of water. The reaction mixture was then allowed to reach room temperature at this reduced pressure. The reaction product contained 5.1% nitrogen (theory=5.4%). Infra-red analysis showed that the reaction product was an imide containing a polybutene side chain.
As detergents for lubricating oil compositions, the compounds of this invention are more efiective than alkenyl succinimides having fewer nitrogen atoms in the amine portion of the molecule, and succinimides having less than 30 carbon atoms in the alkenyl radical. The use of amyl amine, for example, in place of tetraethylene pentamine in the preparation of the succinimide, results in a product which is ineffective as a detergent in lubricating oil compositions.
Table I hereinbelow presents data obtained with lubricating oil compositions containing N-substituted monoalkenyl succinimides derived from tetraethylene pentamine.
The monoalkenyl succinimide used was an N-substituted succinimide derived from tetraethylene pentamine Wherein the alkenyl radical had a molecular weight of about 1000, which alkenyl radical was a polymer of isobutene.
The tests were made in a Caterpillar L-l engine according to Supplement I conditions for a period of 120 hours as described in the Coordinating Research Council Handbook, January, 1946.
The PD Nos. refer to the piston discoloration rating. After the engine test, the three piston lands are examined visually. To a piston skirt which is completely black is assigned a PD number of 800; to one which is completely clean, a PD number of 0; to those intermediate between completely black and completely clean are assigned PD numbers intermediate in proportion to the extent and degree of darkening.
The G.D. Nos. refer to the percentage deposits in the piston ring grooves; and 0 evaluation being a clean groove; and a number of 100 being a groove full of deposits.
The base oils were California SAE 30 base oils.
The dithiophosphate was a zinc salt of a mixed dialkyl dithiophosphate wherein one of the alkyl radicals contained 4 carbon atoms and the other alkyl radical contained 5 carbon atoms. The dithiophosphate was present in the lubricating oil compositions in an amount of 18 millimols per kilogram (Le, 18 mm./kg.) of finished product, based on the metal content.
TABLE I A I B o D Additive:
Succiniuu'de, Wt. percent- 0.0 3. 2. 0 Dithiophosphate:
(1) ImJkg 0.0 0.0 18 18 (2) MIn./kg 0.0 0.0 Test Results:
G.D. No 2 39 4 21 1 P.D. N0 2 800, 800, 800 0, 0, O 600, 300, 200 40, 1, 5
1 An alkenyl succinimide of tetraethylene pentamine wherein the allrenyl radical has had a molecular weight of approximately 1,000, which alkenyl radical was a polymer of isooutene 2 These test results were obtained in a Caterpillar L-l test under the MIL-D2104 conditions. Thus, under the more severe supplement-l conditions, these G.D. N as. would be considerably higher.
The marked synergistic efiect obtained by the combina- T ABLE 1H tron of the N-substituted alkenyl succinimides of this invention and the dithiophosphates is particularly noted. I I l I K i L Table II hereinbelow presents data obtained in an FL-2 ti 0 Additive: test, usmg a 6 cylinder Chevrolet engine Opera 11,, fiat succinimide, Wt percent 3'0 3'0 3' 0 3 0 2500 r.p.m for a period of 40 hours, which test is in y Dithiopl1osphate,mm./kg 1s 18 18 18 described in a Coordmatmg Research Council. bulletm Test Results! -t it th Duration of Test (hours) 20 36 52 72 tled Research Technique for the Determination of e gearing Weight 133 133 206 240 Efiects of Fuels and Lubricants on the Formation of De- Plston Varnish Refine posits During Moderate Temperature Operation. (1948).
The piston varnish rating is a visual observation of the amount of varnish on a piston skirt, with 10 being the maximum rating for a perfectly clean piston and a 0 being the rating of a piston fully covered with black varnish. This piston varnish rating correlates with road performance in automobiles.
The total rating is the overall deposit rating of the engine. The rating values range from 0, the poorest value, to 100, the top value. These figures indicate the percentage rating for the engine.
The base oil was an SAE base oil.
The succinimide and the dithiophosphate were the same as those described for Table I hereinabove.
It is readily seen from the data set forth hereinabove in Tables I and II that lubricating oil compositions containing the alkenyl succinimides of tetraethylene pentamine as described herein are superior as lubricating oil compositions for the lubricating of internal combustion engines.
Table 111 hereinbelow presents data obtained with lubricating oil compositions under L-4 test conditions. This L-4 engine test which is fully described in the CRC Handbook, 1946 edition, Coordinating Research Council, New York, New York, is designed to evaluate the bearing corrosion characteristics and high temperature detergency of lubricating oil compositions. The detergency characteristics are rated by the piston varnish rating on the same scale described above for the FL-2 test. The L-4 test was continued beyond the normal 36 hours. The number of hours is the hours at which the same specimens were evaluated then placed in the engine for further testing.
The dithiophosphate was a zinc salt of a dialkyl dithiophosphate wherein one of the alkyl radicals contained 4 carbon atoms and the other alkyl radical contained 5 carbon atoms.
The succinimide and the dithiophosphate were the same as those described hereinabove.
This performance is exceptionally good.
As is known, the use of a number of polymeric ashless detergents and V1. improvers in lubricating oil compositions results in the formation of lead deposits on many of the parts of gasoline engines. These deposits result from the lead halides formed from the tetraethyl lead and the scavengers used in commercial gasolines. Engine failures result from the formation of these deposits. As shown by the data of Table I hereinbelow, the addition of the N-substituted alkenyl succinimides of this invention markedly improves the performance of such oils.
These tests, which correlate with actual road performance, were made in a 6-cylinder Chevrolet engine run at 2500 r.p.m., with 50 brake horsepower, an oil sump temperature of F. for a period of 36 hours, using a commercial gasoline containing 3 cc. of TEL per gallon. The oil was changed after 24 hours.
The lead rating scale ranges from 10 for a clean engine, to zero for an engine containing heavy lead deposits. Similarly, in the same engine test, piston varnish ratings were obtained, a value of 10 for a clean piston, and a value of zero for a piston heavy with varnish.
The succinimide and the dithiophosphate were the same as that described in the tables hereinabove.
TABLE IV Additive: M Succinimide, weight percent 2 Dithiophosphate, mm./kg. 18 Test results:
Lead rating 9.4 Piston varnish rating 9.9 Total rating 99.1
In addition to the dithiophosphate described hereinabove, lubricating oil compositions containing the N-substituted alkenyl succinimides of tetraethylene pentamine of this invention may also contain other detergents, viscosity index improving agents, rust inhibitors, oiliness agents, grease thickening agents, etc.
1. A lubricating oil composition comprising a major proportion of an oil of lubricating viscosity, and in an amount suficient to impart detergency characteristics thereto, a monoalkenyl succinimide of the formula:
7 wherein R is a hydrocarbon radical having a molecular weight of from about 900 to about 3000.
2. A lubricating oil composition consisting essentially of an oil of lubricating viscosity, and from about 0.1% to about 80%, by weight, of a monoalkenyl succinirnide of tetraethylene pentamine of the formula:
RGHi| J lTICH2CHz(NHCH2CH2)s-NH GHzC=-O wherein R is a hydrocarbon radical derived from a polymer of an olefin containing from 2 to carbon atoms, said polymer having a molecular weight in the range of about 900 to about 3000.
3. A lubricating oil composition consisting essentially of an oil of lubricating viscosity, and from about 0.1% to about 80%, by weight, of a monoalkenyl succinirnide of tetraethylene pentamine of the formula:
i RCH(3 NGHzCHz(NHCHzCHg)g-NH1 CH2C=O wherein R is a a hydrocarbon radical derived from a polymer of an olefin containing from 2 to 5 carbon atoms, said polymer having a molecular weight in the range of about 900 to about 1200.
wherein R is a polymer of isobutene having a molecular Weight of about 1000.
5. A lubricating oil composition comprising a major proportion of a petroleum lubricating oil, and from about 0.25% to about 5%, by weight, of an N-substituted monoalkenyl succinimide of the formula:
in which structural formula R is a substantially aliphatic hydrocarbon radical of from to 200 carbon atoms, with an equal molar quantity of tetraethylene pentamine at a temperature in the range of 220 to 360 F.
References Cited UNITED STATES PATENTS 2,490,744 12/ 1949 Trigg et a1 252-392 X 2,604,451 7/ 1952 Rocchini 252-515 2,638,450 5/1953 White et a1. 252-515 DANIEL E. WYMAN, Primary Examiner.
PATRICK P. GARVIN, JULIUS GREENWALD,
G. O. ENOCKSON, Assistant Examiner.
UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,361,673 January 2, 1968 Frank A. Stuart et a1.
It is certified that error appears in the above identified patent and that said Letters Patent are hereby corrected as shown below:
Column 1, line 57, "plugs" should read spark plugs Columns 1 and 2, formula II should appear as shown below:
iIH (II-I (fH /O CHgC-CH CH- -C CH=C-CH -CH:C I
CH n /O H NCH CH (NHCH CH -NH CH CH CH O 3 3 3 CH -C-CH CH -IC CH=C-CH CH CH n /NCH CH (NHCH CH -NH CH --C Column 3, line 46, (such as polymers of propylene)" should read (such as polymers of propylene, Column 4, line 6, "of polybutene" should read of a polybutene Column 6, line. 35, "I"-should read IV same column 6, lines 69 to 75, the
formula should appear as shown below:
Signed and sealed this 16th day of December 1969.
Attesting Officer Commissioner of Patents
|Brevet cité||Date de dépôt||Date de publication||Déposant||Titre|
|US2490744 *||8 févr. 1947||6 déc. 1949||Socony Vacuum Oil Co Inc||Antirust agent|
|US2604451 *||16 sept. 1948||22 juil. 1952||Gulf Research Development Co||Mineral oil compositions|
|US2638450 *||17 janv. 1950||12 mai 1953||Socony Vacuum Oil Co Inc||Reaction products of nu-alkylated polyalkylenepolyamines and alkenyl succinic acid anhydrides|
|Brevet citant||Date de dépôt||Date de publication||Déposant||Titre|
|US3434972 *||30 nov. 1966||25 mars 1969||Chevron Res||Lubricant compositions containing rust inhibitors|
|US4820432 *||24 juil. 1987||11 avr. 1989||Exxon Chemical Patents Inc.||Lactone-modified, Mannich base dispersant additives useful in oleaginous compositions|
|US4866139 *||7 oct. 1986||12 sept. 1989||Exxon Chemical Patents Inc.||Lactone modified, esterified dispersant additives useful in oleaginous compositions|
|US4866140 *||7 oct. 1986||12 sept. 1989||Exxon Chemical Patents Inc.||Lactone modified adducts or reactants and oleaginous compositions containing same|
|US4866141 *||7 oct. 1986||12 sept. 1989||Exxon Chemical Patents Inc.||Lactone modified, esterfied or aminated additives useful in oleaginous compositions and compositions containing same|
|US4870197 *||12 déc. 1986||26 sept. 1989||Exxon Chemical Patents Inc.||Method for preparing salts of polyolefinic substituted dicarboxylic acids|
|US4906394 *||7 oct. 1986||6 mars 1990||Exxon Chemical Patents Inc.||Lactone modified mono-or dicarboxylic acid based adduct dispersant compositions|
|US4943382 *||6 avr. 1988||24 juil. 1990||Exxon Chemical Patents Inc.||Lactone modified dispersant additives useful in oleaginous compositions|
|US4954276 *||31 août 1989||4 sept. 1990||Exxon Chemical Patents Inc.||Lactone modified adducts or reactants and oleaginous compositions containing same|
|US4954277 *||31 août 1989||4 sept. 1990||Exxon Chemical Patents Inc.||Lactone modified, esterified or aminated additives useful in oleaginous compositions and compositions containing same|
|US4963275 *||6 avr. 1988||16 oct. 1990||Exxon Chemical Patents Inc.||Dispersant additives derived from lactone modified amido-amine adducts|
|US4971711 *||9 janv. 1989||20 nov. 1990||Exxon Chemical Patents, Inc.||Lactone-modified, mannich base dispersant additives useful in oleaginous compositions|
|US5032320 *||28 févr. 1991||16 juil. 1991||Exxon Chemical Patents Inc.||Lactone modified mono- or dicarboxylic acid based adduct dispersant compositions|
|US5232616 *||21 août 1990||3 août 1993||Chevron Research And Technology Company||Lubricating compositions|
|US5286799 *||23 juil. 1992||15 févr. 1994||Chevron Research And Technology Company||Two-step free radical catalyzed process for the preparation of alkenyl succinic anhydride|
|US5292444 *||2 oct. 1992||8 mars 1994||Exxon Research And Engineering Company||Lube oil compositions containing fullerene-grafted polymers|
|US5292813 *||2 oct. 1992||8 mars 1994||Exxon Research & Engineering Co.||Fullerene-grafted polymers and processes of making|
|US5319030 *||23 juil. 1992||7 juin 1994||Chevron Research And Technology Company||One-step process for the preparation of alkenyl succinic anhydride|
|US5356552 *||12 oct. 1993||18 oct. 1994||Chevron Research And Technology Company, A Division Of Chevron U.S.A. Inc.||Chlorine-free lubricating oils having modified high molecular weight succinimides|
|US5387346 *||19 juil. 1993||7 févr. 1995||Ethyl Petroleum Additives, Inc.||Automatic transmission fluids and additives therefor|
|US5430105 *||22 nov. 1993||4 juil. 1995||Exxon Chemical Patents Inc.||Low sediment process for forming borated dispersant|
|US5439607 *||30 déc. 1993||8 août 1995||Exxon Chemical Patents Inc.||Multifunctional viscosity index improver-dispersant antioxidant|
|US5498809 *||22 mai 1995||12 mars 1996||Exxon Chemical Patents Inc.||Polymers derived from ethylene and 1-butene for use in the preparation of lubricant dispersant additives|
|US5554310 *||9 juin 1994||10 sept. 1996||Exxon Chemical Patents Inc.||Trisubstituted unsaturated polymers|
|US5565528 *||5 juin 1995||15 oct. 1996||Chevron Chemical Company||Polymeric dispersants having polyalkylene and succinic groups|
|US5616668 *||14 déc. 1995||1 avr. 1997||Chevron Chemical Company||Polymeric dispersants having polyalkylene and succinic groups|
|US5625004 *||23 juil. 1992||29 avr. 1997||Chevron Research And Technology Company||Two-step thermal process for the preparation of alkenyl succinic anhydride|
|US5629434 *||25 sept. 1995||13 mai 1997||Exxon Chemical Patents Inc||Functionalization of polymers based on Koch chemistry and derivatives thereof|
|US5643859 *||17 juin 1994||1 juil. 1997||Exxon Chemical Patents Inc.||Derivatives of polyamines with one primary amine and secondary of tertiary amines|
|US5646332 *||17 juin 1994||8 juil. 1997||Exxon Chemical Patents Inc.||Batch Koch carbonylation process|
|US5650536 *||17 juin 1994||22 juil. 1997||Exxon Chemical Patents Inc.||Continuous process for production of functionalized olefins|
|US5663130 *||11 mars 1996||2 sept. 1997||Exxon Chemical Patents Inc||Polymers derived from ethylene and 1-butene for use in the preparation of lubricant dispersant additives|
|US5696064 *||23 août 1995||9 déc. 1997||Exxon Chemical Patents Inc.||Functionalization of polymers based on Koch chemistry and derivatives thereof|
|US5698722 *||6 juin 1995||16 déc. 1997||Exxon Chemical Patents Inc.||Functionalization of polymers based on Koch chemistry and derivatives thereof|
|US5703256 *||16 déc. 1996||30 déc. 1997||Exxon Chemical Patents Inc.||Functionalization of polymers based on Koch chemistry and derivatives thereof|
|US5716912 *||9 avr. 1996||10 févr. 1998||Chevron Chemical Company||Polyalkylene succinimides and post-treated derivatives thereof|
|US5717039 *||6 juin 1995||10 févr. 1998||Exxon Chemical Patents Inc.||Functionalization of polymers based on Koch chemistry and derivatives thereof|
|US5753597 *||20 août 1996||19 mai 1998||Chevron Chemical Company||Polymeric dispersants|
|US5756428 *||29 sept. 1988||26 mai 1998||Exxon Chemical Patents Inc.||High functionality low molecular weight oil soluble dispersant additives useful in oleaginous composition|
|US5767046 *||15 mai 1997||16 juin 1998||Exxon Chemical Company||Functionalized additives useful in two-cycle engines|
|US5773567 *||17 juin 1996||30 juin 1998||Exxon Chemical Patents Inc||Carboxylic amide-containing polymers for use as fuel or lubricating oil additives and processes for their preparation|
|US5788722 *||30 mai 1995||4 août 1998||Exxon Chemical Patents Inc||High functionality low molecular weight oil soluble dispersant additives useful in oleaginous compositions|
|US5789356 *||11 févr. 1997||4 août 1998||Exxon Chemical Patents Inc||Synergistic combinations for use in functional fluid compositions|
|US5792729 *||20 août 1996||11 août 1998||Chevron Chemical Corporation||Dispersant terpolymers|
|US5811377 *||3 févr. 1997||22 sept. 1998||Exxon Chemical Patents Inc||Low molecular weight basic nitrogen-containing reaction products as enhanced phosphorus/boron carriers in lubrication oils|
|US5821205 *||1 déc. 1995||13 oct. 1998||Chevron Chemical Company||Polyalkylene succinimides and post-treated derivatives thereof|
|US5849676 *||29 juil. 1997||15 déc. 1998||Chevron Chemical Company||Post-treated derivatives of polyalkylene succinimides|
|US5851965 *||29 juil. 1997||22 déc. 1998||Chevron Chemical Company||Dispersant compositions having polyalkylene succinimides|
|US5853434 *||29 juil. 1997||29 déc. 1998||Chevron Chemical Company||Fuel compositions having polyalkylene succinimides and preparation thereof|
|US5861363 *||29 janv. 1998||19 janv. 1999||Chevron Chemical Company Llc||Polyalkylene succinimide composition useful in internal combustion engines|
|US5872082 *||21 oct. 1997||16 févr. 1999||Exxon Chemical Patents Inc.||Method for increasing the static coefficient of friction in oleaginous compositions|
|US5872083 *||29 juil. 1997||16 févr. 1999||Chevron Chemical Company||Post-treated derivatives of polyalkylene succinimides|
|US5880070 *||20 août 1996||9 mars 1999||Chevron Chemical Company||Cross-linked succinimides from an acid derivative, a polyamine, and a polycarboxylic acid derivative|
|US6015776 *||8 sept. 1998||18 janv. 2000||Chevron Chemical Company||Polyalkylene polysuccinimides and post-treated derivatives thereof|
|US6030930 *||14 mai 1997||29 févr. 2000||Exxon Chemical Patents Inc||Polymers derived from ethylene and 1-butene for use in the preparation of lubricant disperant additives|
|US6066605 *||6 févr. 1998||23 mai 2000||Infineum Usa L.P.||Carboxylic amide-containing polymers for use as fuel or lubricating oil additives and processes for their preparation|
|US6107450 *||15 déc. 1998||22 août 2000||Chevron Chemical Company Llc||Polyalkylene succinimides and post-treated derivatives thereof|
|US6127321 *||5 sept. 1991||3 oct. 2000||Exxon Chemical Patents Inc||Oil soluble dispersant additives useful in oleaginous compositions|
|US6140280 *||8 oct. 1997||31 oct. 2000||Idemitsu Kosan Co., Ltd.||Succinimide compound and method for producing it, lubricating oil additive comprising the compound and lubricating oil composition comprising the compound for diesel engine|
|US6146431 *||23 déc. 1999||14 nov. 2000||Chevron Chemical Company Llc||Polyalkylene polysuccinimides and post-treated derivatives thereof|
|US6214775||13 oct. 1999||10 avr. 2001||Chevron Chemical Company Llc||Haze-free post-treated succinimides|
|US6306802||22 avr. 1997||23 oct. 2001||Exxon Chemical Patents Inc.||Mixed antioxidant composition|
|US6355074||25 mai 1995||12 mars 2002||Exxon Chemical Patents Inc||Oil soluble dispersant additives useful in oleaginous compositions|
|US6358892 *||27 janv. 1998||19 mars 2002||Chevron Chemical Company||Polyalkylene succinimides and post-treated derivatives thereof|
|US6440905||24 avr. 2001||27 août 2002||The Lubrizol Corporation||Surfactants and dispersants by in-line reaction|
|US6642191||29 nov. 2001||4 nov. 2003||Chevron Oronite Company Llc||Lubricating oil additive system particularly useful for natural gas fueled engines|
|US6756348||29 nov. 2001||29 juin 2004||Chevron Oronite Company Llc||Lubricating oil having enhanced resistance to oxidation, nitration and viscosity increase|
|US6827750||24 août 2001||7 déc. 2004||Dober Chemical Corp||Controlled release additives in fuel systems|
|US6835218||24 août 2001||28 déc. 2004||Dober Chemical Corp.||Fuel additive compositions|
|US6860241||24 août 2001||1 mars 2005||Dober Chemical Corp.||Fuel filter including slow release additive|
|US6867171||27 nov. 2002||15 mars 2005||Chevron Oronitz Company Llc||Low molecular weight branched alkenyl succinic acid derivatives prepared from low molecular weight polyisobutene and unsaturated acidic reagents|
|US6906011||9 nov. 2001||14 juin 2005||Chevron Oronite Company Llc||Polymeric dispersants prepared from copolymers of low molecular weight polyisobutene and unsaturated acidic reagent|
|US7001531||24 août 2001||21 févr. 2006||Dober Chemical Corp.||Sustained release coolant additive composition|
|US7182795||13 mars 2002||27 févr. 2007||Atton Chemical Intangibles Llc||Fuel lubricity additives derived from hydrocarbyl succinic anhydrides and hydroxy amines, and middle distillate fuels containing same|
|US7361629||10 mars 2004||22 avr. 2008||Afton Chemical Corporation||Additives for lubricants and fuels|
|US7422161||30 mars 2006||9 sept. 2008||Afton Chemical Corporation||Treated port fuel injectors|
|US7485734||28 janv. 2005||3 févr. 2009||Afton Chemical Corporation||Seal swell agent and process therefor|
|US7563314||30 nov. 2005||21 juil. 2009||Xerox Corporation||Ink carriers containing nanoparticles, phase change inks including same and methods for making same|
|US7581558||5 juin 2007||1 sept. 2009||Cummins Filtration Ip Inc.||Controlled release of additives in fluid systems|
|US7591279||16 août 2002||22 sept. 2009||Cummins Filtration Ip Inc.||Controlled release of additives in fluid systems|
|US7618928||17 nov. 2009||Chevron Oronite Company Llc||Lubricating oil additive composition and method of making the same|
|US7645728||12 janv. 2010||Afton Chemical Corporation||Lubricant and fuel additives derived from treated amines|
|US7655084||2 févr. 2010||Xerox Corporation||Carbon black inks and method for making same|
|US7662887||16 févr. 2010||Infineum International Limited||Method of forming polyalkene substituted carboxylic acid compositions|
|US7682491||26 mars 2007||23 mars 2010||Nalco Company||Antifoulant for hydrocarbon processing equipment|
|US7700673||22 déc. 2006||20 avr. 2010||Bridgestone Corporation||Reduced oil rubber compositions including N-substituted polyalkylene succinimide derivates and methods for preparing such compositions|
|US7745542||29 juin 2010||Chevron Oronite Company Llc||Lubricating oil additive composition and method of making the same|
|US7786209||31 août 2010||Xerox Corporation||Nanostructured particles, phase change inks including same and methods for making same|
|US7816309||19 oct. 2010||Chevron Oronite Company Llc||Lubricating oil additive composition and method of making the same|
|US7820602||12 juil. 2006||26 oct. 2010||King Industries, Inc.||Amine tungstates and lubricant compositions|
|US7820604||26 oct. 2010||Chevron Oronite Company Llc||Lubricating oil additive composition and method of making the same|
|US7820605||26 oct. 2010||Chevron Oronite Company Llc||Lubricating oil additive composition and method of making the same|
|US7858566||27 oct. 2006||28 déc. 2010||Chevron Oronite Company Llc||Lubricating oil additive composition and method of making the same|
|US7863228||17 mars 2008||4 janv. 2011||Afton Chemical Corporation||Additives for lubricants and fuels|
|US7875576||29 juil. 2004||25 janv. 2011||Chevron Oronite Company Llc||Lubricating oil composition for internal combustion engines|
|US7883638||27 mai 2008||8 févr. 2011||Dober Chemical Corporation||Controlled release cooling additive compositions|
|US7884058||8 févr. 2011||Chevron Oronite Company Llc||Stable colloidal suspensions and lubricating oil compositions containing same|
|US7928044||27 oct. 2006||19 avr. 2011||Chevron Oronite Company Llc||Lubricating oil additive composition and method of making the same|
|US7938277||10 mai 2011||Dober Chemical Corporation||Controlled release of microbiocides|
|US7947636||27 févr. 2004||24 mai 2011||Afton Chemical Corporation||Power transmission fluids|
|US8029861||23 sept. 2008||4 oct. 2011||Xerox Corporation||Ink carriers containing low viscosity functionalized waxes, phase change inks including same, and methods for making same|
|US8067347||27 oct. 2006||29 nov. 2011||Chevron Oronite Company Llc||Lubricating oil additive composition and method of making the same|
|US8080500||20 déc. 2011||King Industries, Inc.||Amine tungstates and lubricant compositions|
|US8109287||7 févr. 2012||Cummins Filtration Ip, Inc.||Controlled release of additives in fluid systems|
|US8123344||4 août 2008||28 févr. 2012||Xerox Corporation||Ink carriers containing surface modified nanoparticles, phase change inks including same, and methods for making same|
|US8153566||30 sept. 2008||10 avr. 2012||Cherron Oronite Company LLC||Lubricating oil compositions|
|US8177897||17 nov. 2008||15 mai 2012||Xerox Corporation||Phase change inks containing graphene-based carbon allotrope colorants|
|US8348409||17 nov. 2008||8 janv. 2013||Xerox Corporation||Ink jet inks containing nanodiamond black colorants|
|US8389609||30 juin 2010||5 mars 2013||Bridgestone Corporation||Multiple-acid-derived metal soaps incorporated in rubber compositions and method for incorporating such soaps in rubber compositions|
|US8425772||23 avr. 2013||Cummins Filtration Ip, Inc.||Filtration device with releasable additive|
|US8455568||4 juin 2013||Chevron Oronite Company Llc||Lubricating oil additive composition and method of making the same|
|US8546464||26 juin 2009||1 oct. 2013||Bridgestone Corporation||Rubber compositions including metal-functionalized polyisobutylene derivatives and methods for preparing such compositions|
|US8591747||26 mai 2009||26 nov. 2013||Dober Chemical Corp.||Devices and methods for controlled release of additive compositions|
|US8690968||4 avr. 2008||8 avr. 2014||Afton Chemical Corporation||Succinimide lubricity additive for diesel fuel and a method for reducing wear scarring in an engine|
|US8702995||27 mai 2008||22 avr. 2014||Dober Chemical Corp.||Controlled release of microbiocides|
|US8802755||11 mars 2013||12 août 2014||Bridgestone Corporation||Rubber compositions including metal phosphate esters|
|US8901050||31 mars 2010||2 déc. 2014||Chevron Oronite Company Llc||Method for improving copper corrosion performance|
|US8933001||31 mars 2010||13 janv. 2015||Chevron Oronite Company Llc||Method for improving fluorocarbon elastomer seal compatibility|
|US9011556||9 mars 2007||21 avr. 2015||Afton Chemical Corporation||Fuel composition containing a hydrocarbyl-substituted succinimide|
|US9062265||4 févr. 2011||23 juin 2015||Innospec Limited||Diesel fuel compositions for high pressure fuel systems|
|US9090127||31 déc. 2008||28 juil. 2015||Bridgestone Corporation||Metal soaps incorporated in rubber compositions and method for incorporating such soaps in rubber compositions|
|US9315753||2 août 2012||19 avr. 2016||Innospec Limited||Diesel fuel compositions|
|US9365787||2 août 2012||14 juin 2016||Innospec Limited||Diesel fuel compositions|
|US9365794||19 févr. 2010||14 juin 2016||Infineum International Limited||Wet friction clutch—lubricant systems providing high dynamic coefficients of friction through the use of borated detergents|
|US20030122104 *||12 févr. 2003||3 juil. 2003||Dober Chemical Corporation||Liquid replacement systems|
|US20030130140 *||9 nov. 2001||10 juil. 2003||Harrison James J.||Polymeric dispersants prepared from copolymers of low molecular weight polyisobutene and unsaturated acidic reagent|
|US20030172584 *||13 mars 2002||18 sept. 2003||Henly Timothy J.||Fuel lubricity additives derived from hydrocarbyl succinic anhydrides and hydroxy amines, and middle distillate fuels containing same|
|US20030224948 *||14 févr. 2003||4 déc. 2003||Dam Willem Van||Lubricating oil additive comprising EC-treated succinimide, borated dispersant and corrosion inhibitor|
|US20040048765 *||10 sept. 2001||11 mars 2004||Cooney Anthony Michael||Composition|
|US20040091654 *||3 nov. 2003||13 mai 2004||Fleetguard, Inc.||Controlled release of additives in cooling systems|
|US20040102338 *||27 nov. 2002||27 mai 2004||Harrison James J.||Low molecular weight branched alkenyl succinic acid derivatives prepared from low molecular weight polyisobutene and unsaturated acidic reagents|
|US20040235682 *||22 mai 2003||25 nov. 2004||Chevron Oronite Company Llc||Low emission diesel lubricant with improved corrosion protection|
|US20050019236 *||16 août 2002||27 janv. 2005||Harold Martin||Controlled release of additives in fluid systems|
|US20050027592 *||30 juil. 2003||3 févr. 2005||Pettigrew F. Alexander||Powered platform fuel consumption economy credits method|
|US20050070445 *||30 sept. 2003||31 mars 2005||Nelson Kenneth D.||Stable colloidal suspensions and lubricating oil compositions containing same|
|US20050101496 *||6 nov. 2003||12 mai 2005||Loper John T.||Hydrocarbyl dispersants and compositions containing the dispersants|
|US20050119134 *||16 déc. 2003||2 juin 2005||Chevron Oronite S.A.||Additive composition for transmission oil|
|US20050181959 *||17 févr. 2004||18 août 2005||Esche Carl K.Jr.||Lubricant and fuel additives derived from treated amines|
|US20050192185 *||27 févr. 2004||1 sept. 2005||Saathoff Lee D.||Power transmission fluids|
|US20050202980 *||10 mars 2004||15 sept. 2005||Loper John T.||Novel additives for lubricants and fuels|
|US20050223630 *||13 févr. 2003||13 oct. 2005||Cooney Anthony M||Friction modifier for hydrocarbon fuels|
|US20050250656 *||4 mai 2004||10 nov. 2005||Masahiro Ishikawa||Continuously variable transmission fluid|
|US20060025313 *||29 juil. 2004||2 févr. 2006||Chevron Oronite Company Llc||Lubricating oil composition for internal combustion engines|
|US20060122073 *||8 déc. 2004||8 juin 2006||Chip Hewette||Oxidation stable gear oil compositions|
|US20060173217 *||28 janv. 2005||3 août 2006||Abbas Kadkhodayan||Seal swell agent and process therefor|
|US20070000831 *||5 sept. 2006||4 janv. 2007||Fleetguard, Inc.||Controlled release of additives in cooling systems|
|US20070027267 *||27 juil. 2006||1 févr. 2007||Chevron Oronite Company Llc||Lubricating oil additive composition and method of making the same|
|US20070042917 *||12 juil. 2006||22 févr. 2007||Ramanathan Ravichandran||Amine Tungstates and Lubricant Compositions|
|US20070049503 *||31 août 2005||1 mars 2007||Chevron Oronite Company Llc||Lubricating oil additive composition and method of making the same|
|US20070119340 *||30 nov. 2005||31 mai 2007||Xerox Corporation||Ink carriers containing nanoparticles, phase change inks including same and methods for making same|
|US20070131138 *||12 déc. 2005||14 juin 2007||Xerox Corporation||Carbon black inks and method for making same|
|US20070149689 *||28 déc. 2006||28 juin 2007||Xiaorong Wang||Rubber composition having good wet-traction properties and a low aromatic-oil content|
|US20070235566 *||30 mars 2006||11 oct. 2007||Hou Peter W||Treated port fuel injectors|
|US20070241042 *||5 juin 2007||18 oct. 2007||Dober Chemical Corporation||Controlled release of additives in fluid systems|
|US20070245621 *||20 avr. 2006||25 oct. 2007||Malfer Dennis J||Additives for minimizing injector fouling and valve deposits and their uses|
|US20070283618 *||9 juin 2006||13 déc. 2007||Malfer Dennis J||Diesel detergents|
|US20080098930 *||1 nov. 2006||1 mai 2008||Xerox Corporation||Colorant dispersant|
|US20080103074 *||27 oct. 2006||1 mai 2008||Chevron Oronite Company Llc||Lubricating oil additive composition and method of making the same|
|US20080103075 *||27 oct. 2006||1 mai 2008||Chevron Oronite Company Llc||Lubricating oil additive composition and method of making the same|
|US20080103076 *||27 oct. 2006||1 mai 2008||Chevron Oronite Company Llc||Lubricating oil additive composition and method of making the same|
|US20080103236 *||27 oct. 2006||1 mai 2008||Chevron Oronite Company Llc||Lubricating oil additive composition and method of making the same|
|US20080103250 *||21 sept. 2007||1 mai 2008||Xerox Corporation||Nanostructed particles, phase change inks including same and methods for making same|
|US20080113888 *||27 oct. 2006||15 mai 2008||Chevron Oronite Company Llc||Lubricating oil additive composition and method of making the same|
|US20080113889 *||27 oct. 2006||15 mai 2008||Chevron Oronite Company Llc||lubricating oil additive composition and method of making the same|
|US20080153724 *||4 déc. 2007||26 juin 2008||Pierre Tequi||Additive composition for transmission oil containing hydrated alkali metal borate and hexagonal boron nitride|
|US20080194440 *||3 avr. 2008||14 août 2008||Ramanathan Ravichandran||Amine tungstates and lubricant compositions|
|US20080241095 *||26 mars 2007||2 oct. 2008||Syrinek Allen R||Antifoulant for hydrocarbon processing equipment|
|US20080280793 *||9 juil. 2008||13 nov. 2008||Chevron Oronite S.A.||Additive composition for transmission oil containing hexagonal boron nitride and polymethacrylate or dispersant olefin co-polymer|
|US20080296234 *||27 mai 2008||4 déc. 2008||Dober Chemical Corporation||Controlled release of microbiocides|
|US20090029888 *||18 janv. 2008||29 janv. 2009||Ramanathan Ravichandran||Amine tungstates and lubricant compositions|
|US20090031614 *||1 août 2007||5 févr. 2009||Ian Macpherson||Environmentally-Friendly Fuel Compositions|
|US20090042752 *||9 août 2007||12 févr. 2009||Malcolm Waddoups||Lubricant Compositions with Reduced Phosphorous Content for Engines having Catalytic Converters|
|US20090156445 *||13 déc. 2007||18 juin 2009||Lam William Y||Lubricant composition suitable for engines fueled by alternate fuels|
|US20090171031 *||26 déc. 2007||2 juil. 2009||Richard Joseph Severt||Method of Forming Polyalkene Substituted Carboxylic Acid Compositions|
|US20090249683 *||4 avr. 2008||8 oct. 2009||Schwab Scott D||Succinimide lubricity additive for diesel fuel and a method for reducing wear scarring in an engine|
|US20090270531 *||29 oct. 2009||Chevron Oronite Company Llc||Lubricating oil additive composition and method of making the same|
|US20090283466 *||19 nov. 2009||Cummins Filtration Ip Inc.||Controlled release of additives in fluid systems|
|US20090294345 *||3 déc. 2009||Dober Chemical Corporation||Controlled release of microbiocides|
|US20090304868 *||10 déc. 2009||Dober Chemical Corporation||Controlled release cooling additive composition|
|US20100028537 *||4 févr. 2010||Xerox Corporation||Ink Carriers Containing Surface Modified Nanoparticles, Phase Change Inks Including Same, and Methods for Making Same|
|US20100075038 *||25 mars 2010||Xerox Corporation||Ink Carriers Containing Low Viscosity Functionalized Waxes, Phase Change Inks Including Same, And Methods For Making Same|
|US20100081588 *||1 avr. 2010||Chevron Oronite Company Llc||Lubricating oil compositions|
|US20100107478 *||15 avr. 2008||6 mai 2010||Instituto Mexicano Del Petroleo||Oxazolidines derived from polyalkyl or polyalkenyl n-hydroxyalkyl succinimides, obtainment process and use|
|US20100123746 *||17 nov. 2008||20 mai 2010||Xerox Corporation||Ink jet inks containing nanodiamond black colorants|
|US20100124611 *||17 nov. 2008||20 mai 2010||Xerox Corporation||Phase Change Inks Containing Graphene-Based Carbon Allotrope Colorants|
|US20100160192 *||22 déc. 2008||24 juin 2010||Chevron Oronite LLC||lubricating oil additive composition and method of making the same|
|US20110010985 *||21 sept. 2010||20 janv. 2011||Peter Wangqi Hou||Fuel Additive to Control Deposit Formation|
|US20110039994 *||30 juin 2010||17 févr. 2011||Xiaorong Wang||Multiple-Acid-Derived Metal Soaps Incorporated In Rubber Compositions And Method For Incorporating Such Soaps In Rubber Compositions|
|US20110060062 *||10 mars 2011||Bridgestone Corporation||Compositions and method for making hollow nanoparticles from metal soaps|
|US20110098378 *||26 juin 2009||28 avr. 2011||Xiaorong Wang||Rubber compositions including metal-functionalized polyisobutylene derivatives and methods for preparing such compositions|
|CN1043772C *||15 déc. 1992||23 juin 1999||中国石油化工总公司石油化工科学研究院||Method for preparation of dispersed oil additives|
|EP0351964A1||23 juin 1989||24 janv. 1990||Exxon Chemical Patents Inc.||Synergistic combination of additives useful in power transmitting compositions|
|EP0399764A1||21 mai 1990||28 nov. 1990||Ethyl Petroleum Additives Limited||Lubricant compositions|
|EP0515027A2 *||10 avr. 1992||25 nov. 1992||Exxon Chemical Patents Inc.||Process for preventing fouling in the production of ethylene dichloride|
|EP0611818A1||30 juil. 1991||24 août 1994||Exxon Chemical Patents Inc.||Low pressure derived mixed phosphorous- and sulfur-containing reaction products useful in power transmitting compositions and process for preparing the same|
|EP0683220A2||18 mai 1995||22 nov. 1995||Ethyl Corporation||Lubricant additive compositions|
|EP0776963A1||29 nov. 1996||4 juin 1997||Chevron Chemical Company||Polyalkylene succinimides and post-treated derivatives thereof|
|EP0831104A2||5 déc. 1996||25 mars 1998||Chevron Chemical Company||Novel dispersant terpolymers|
|EP1503316A1||28 juil. 2004||2 févr. 2005||Ethyl Petroleum Additives, Inc.||Fuel consumption economy credits method|
|EP1640440A1||30 août 2005||29 mars 2006||Infineum International Limited||Friction and/or wear reduction in manual or automated manual transmissions|
|EP1669436A1||8 déc. 2005||14 juin 2006||Afton Chemical Corporation||Oxidation stable gear oil compositions|
|EP1757673A1||23 août 2005||28 févr. 2007||Chevron Oronite Company LLC||Lubricating oil composition for internal combustion engines|
|EP1840192A1||9 janv. 2007||3 oct. 2007||Afton Chemical Corporation||Treated port fuel injectors|
|EP1916292A1||26 oct. 2007||30 avr. 2008||Chevron Oronite Company LLC||A lubricating oil additive composition and method of making the same|
|EP1916293A1||26 oct. 2007||30 avr. 2008||Chevron Oronite Company LLC||A lubricating oil additive composition and method of making the same|
|EP1970430A2||24 janv. 2008||17 sept. 2008||Afton Chemical Corporation||Fuel composition containing a hydrocarbyl-substituted succinimide|
|EP2025737A1||30 juil. 2008||18 févr. 2009||Afton Chemical Corporation||Environmentally-friendly fuel compositions|
|EP2031045A1||29 juil. 2008||4 mars 2009||Infineum International Limited||Lubricant compositions with reduced phosphorous content for engines having catalytic converters|
|EP2042582A2||25 août 2008||1 avr. 2009||Afton Chemical Corporation||Surface passivation and to methods for the reduction of fuel thermal degradation deposits|
|EP2072611A1||11 nov. 2008||24 juin 2009||Afton Chemical Corporation||Lubricant composition suitable for engines fueled by alternate fuels|
|EP2075264A1||4 déc. 2008||1 juil. 2009||Infineum International Limited||Method of forming polyalkene substituted carboxylic acid compositions|
|EP2107102A2||3 avr. 2009||7 oct. 2009||Afton Chemical Corporation||A succinimide lubricity additive for diesel fuel|
|EP2184338A2||7 déc. 2004||12 mai 2010||The Lubrizol Corporation||Lubricating composition containing metal salixarate as detergent and succinimides as dispersants|
|EP2272940A1||13 sept. 2002||12 janv. 2011||Afton Chemical Intangibles LLC||Fuels compositions for direct injection gasoline engines|
|EP2290040A1||29 juil. 2010||2 mars 2011||Chevron Japan Ltd.||Friction modifier and transmission oil|
|EP2431448A1||24 févr. 2010||21 mars 2012||The Lubrizol Corporation||Lubricating compositions containing the reaction product of an aromatic amine and a carboxylic functionalised polymer and dispersant|
|EP2554636A1||3 août 2011||6 févr. 2013||Innospec Limited||Fuel compositions|
|EP2644684A1||25 févr. 2010||2 oct. 2013||Innospec Limited||Methods and uses relating to fuel compositions|
|EP2851413A1||17 sept. 2014||25 mars 2015||Chevron Japan Ltd.||Fuel economy engine oil composition|
|EP2966151A1||10 mars 2011||13 janv. 2016||Innospec Limited||Fuel composition comprising detergent and quaternary ammonium salt additive|
|EP2998384A1||13 juin 2006||23 mars 2016||The Lubrizol Corporation||Diesel fuel composition comprising a quaternary ammonium salt detergent|
|WO1998047989A1||19 mars 1998||29 oct. 1998||Exxon Chemical Patents Inc.||Power transmission fluids containing alkyl phosphonates|
|WO2008130214A1 *||15 avr. 2008||30 oct. 2008||Instituto Mexicano Del Petróleo||Oxazolidines derived from polyalkyl or polyalkylene n-hydroxyalkyl succinimides, method for preparation and use|
|WO2010099136A1||24 févr. 2010||2 sept. 2010||The Lubrizol Corporation||Lubricating compositions containing the reaction product of an aromatic amine and a carboxylic functionalised polymer and dispersant|
|WO2010147993A1||15 juin 2010||23 déc. 2010||Chevron Phillips Chemical Company Lp||Oligomerization of alpha olefins using metallocene-ssa catalyst systems and use of the resultant polyalphaolefins to prepare lubricant blends|
|WO2010148652A1||25 juin 2010||29 déc. 2010||China Petroleum & Chemical Corporation||Diesel composition and process for improving oxidation stability of biodiesel|
|WO2011059626A1||14 oct. 2010||19 mai 2011||The Lubrizol Corporation||Lubricant system clean-up compositions and methods thereof|
|WO2011095819A1||4 févr. 2011||11 août 2011||Innospec Limited||Fuel compositions|
|WO2011102835A1||19 févr. 2010||25 août 2011||Toyota Jidosha Kabushiki Kaisha||Wet friction clutch-lubricant systems providing high dynamic coefficients of friction through the use of sodium detergents|
|WO2011102836A1||19 févr. 2010||25 août 2011||Infineum International Limited||Wet friction clutch-lubricant systems providing high dynamic coefficients of friction through the use of borated detergents|
|WO2011110860A1||10 mars 2011||15 sept. 2011||Innospec Limited||Fuel composition comprising detergent and quaternary ammonium salt additive|
|WO2011141731A1||10 mai 2011||17 nov. 2011||Innospec Limited||Composition, method and use|
|WO2011146289A1||11 mai 2011||24 nov. 2011||The Lubrizol Corporation||Methods and compositions that provide detergency|
|WO2011146456A1||17 mai 2011||24 nov. 2011||The Lubrizol Corporation||Low ash lubricants with improved seal and corrosion performance|
|WO2011149799A1||23 mai 2011||1 déc. 2011||The Lubrizol Corporation||Method to provide power gain in an engine|
|WO2011153178A2||1 juin 2011||8 déc. 2011||The Lubrizol Corporation||Lubricating composition containing a carboxylic functionalised polymer|
|WO2011159742A1||15 juin 2011||22 déc. 2011||The Lubrizol Corporation||Methods of removing deposits in oil and gas applications|
|WO2012027254A1||22 août 2011||1 mars 2012||The Lubrizol Corporation||Lubricants containing aromatic dispersants and titanium|
|WO2012084906A1||20 déc. 2011||28 juin 2012||Rhodia Operations||Fuel additive composition containing a dispersion of iron particles and a detergent|
|WO2012162020A1||15 mai 2012||29 nov. 2012||The Lubrizol Corporation||Stabilized blends containing antioxidants|
|WO2012162027A1||15 mai 2012||29 nov. 2012||The Lubrizol Corporation||Stabilized blends containing friction modifiers|
|WO2012162219A1||21 mai 2012||29 nov. 2012||The Lubrizol Corporation||Stabilized blends containing friction modifiers|
|WO2012162282A1||22 mai 2012||29 nov. 2012||The Lubrizol Corporation||Stabilized blends containing friction modifiers|
|WO2012177529A1||18 juin 2012||27 déc. 2012||The Lubrizol Corporation||Lubricating compositions containing salts of hydrocarbyl substituted acylating agents|
|WO2013017884A1||2 août 2012||7 févr. 2013||Innospec Limited||Fuel compositions|
|WO2013017886A1||2 août 2012||7 févr. 2013||Innospec Limited||Fuel compositions|
|WO2013017887A1||2 août 2012||7 févr. 2013||Innospec Limited||Fuel compositions|
|WO2013017889A1||2 août 2012||7 févr. 2013||Innospec Limited||Fuel compositions|
|WO2013043332A1||29 août 2012||28 mars 2013||The Lubrizol Corporation||Quaternary ammonium salts in heating oils|
|WO2013062924A2||23 oct. 2012||2 mai 2013||The Lubrizol Corporation||Lubricating composition containing an esterified polymer|
|WO2013123102A2||14 févr. 2013||22 août 2013||The Lubrizol Corporation||Lubricating composition including esterified copolymer and low dispersant levels suitable for driveline applications|
|WO2013123160A1||14 févr. 2013||22 août 2013||The Lubrizol Corporation||Mixtures of olefin-ester copolymer with polyolefin as viscosity modifier|
|WO2014047017A1||17 sept. 2013||27 mars 2014||The Lubrizol Corporation||Lubricant comprising a mixture of an olefin-ester copolymer with an ethylene alpha-olefin copolymer|
|WO2014066344A1||22 oct. 2013||1 mai 2014||The Lubrizol Corporation||Diesel detergent without a low molecular weight penalty|
|WO2014137800A1||28 févr. 2014||12 sept. 2014||The Lubrizol Corporation||Ion tolerant corrosion inhibitors and inhibitor combinations for fuels|
|WO2014193692A1||20 mai 2014||4 déc. 2014||The Lubrizol Corporation||Asphaltene inhibition|
|WO2015183908A1||27 mai 2015||3 déc. 2015||The Lubrizol Corporation||Low molecular weight imide containing quaternary ammonium salts|
|WO2015183916A1||27 mai 2015||3 déc. 2015||The Lubrizol Corporation||Low molecular weight amide/ester containing quaternary ammonium salts|
|WO2015184247A1||29 mai 2015||3 déc. 2015||The Lubrizol Corporation||High molecular weight imide containing quaternary ammonium salts|
|WO2015184251A1||29 mai 2015||3 déc. 2015||The Lubrizol Corporation||Branched amine containing quaternary ammonium salts|
|WO2015184254A1||29 mai 2015||3 déc. 2015||The Lubrizol Corporation||High molecular weight amide/ester containing quaternary ammonium salts|
|WO2015184276A1||29 mai 2015||3 déc. 2015||The Lubrizol Corporation||Epoxide quaternized quaternary ammonium salts|
|WO2015184280A1||29 mai 2015||3 déc. 2015||The Lubrizol Corporation||Imidazole containing quaternary ammonium salts|
|WO2015184301A2||29 mai 2015||3 déc. 2015||The Lubrizol Corporation||Coupled quaternary ammonium salts|
|Classification aux États-Unis||508/293|
|Classification coopérative||C10M2229/043, C10M2205/024, C10M2229/042, C10M2229/046, C10M2205/026, C10M2203/104, C10M2203/04, C10M2229/048, C10M2229/041, C10M2207/34, C10M2203/10, C10M2227/04, C10M2203/024, C10M2223/045, C10N2250/10, C10M2217/046, C10M2203/02, C10N2210/02, C10N2240/101, C10M2203/106, C10M2229/044, C10M2215/086, C10M2207/04, C10M2215/04, C10M2209/109, C10M2205/00, C10M2215/26, C10M2203/102, C10M2223/04, C10M133/56, C10M2217/06, C10M2215/28, C10M2209/108, C10M2203/108, C10M2227/02, C10M2203/022, C10M2229/047, C10N2240/10, C08F8/46, C10N2240/106, C10N2240/104, C10M2209/105, C10M2207/282, C10M2223/042, C10M2229/045, C10M2203/06, C10M2229/04, C08F8/32|
|Classification européenne||C08F8/32, C08F8/46, C10M133/56|