EP0400870B1 - Agent améliorant l'indice de viscosité à buts multiples dérivé de polyamine contenant un groupe amine primaire et au moins un groupe amine secondaire et présentant des propriétés viscométriques améliorées à basse température - Google Patents

Agent améliorant l'indice de viscosité à buts multiples dérivé de polyamine contenant un groupe amine primaire et au moins un groupe amine secondaire et présentant des propriétés viscométriques améliorées à basse température Download PDF

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Publication number
EP0400870B1
EP0400870B1 EP90305567A EP90305567A EP0400870B1 EP 0400870 B1 EP0400870 B1 EP 0400870B1 EP 90305567 A EP90305567 A EP 90305567A EP 90305567 A EP90305567 A EP 90305567A EP 0400870 B1 EP0400870 B1 EP 0400870B1
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copolymer
ethylene
composition according
grafted
weight
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EP0400870A1 (fr
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Antonio Gutierrez
David Yen-Lung Chung
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ExxonMobil Chemical Patents Inc
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Exxon Chemical Patents Inc
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/22—Organic compounds containing nitrogen
    • C10L1/234—Macromolecular compounds
    • C10L1/236—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds derivatives thereof
    • C10L1/2364—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds derivatives thereof homo- or copolymers derived from unsaturated compounds containing amide and/or imide groups
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    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
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    • C10L1/14—Organic compounds
    • C10L1/24—Organic compounds containing sulfur, selenium and/or tellurium
    • C10L1/2462—Organic compounds containing sulfur, selenium and/or tellurium macromolecular compounds
    • C10L1/2468—Organic compounds containing sulfur, selenium and/or tellurium macromolecular compounds obtained by reactions involving only carbon to carbon unsaturated bonds; derivatives thereof
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    • C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
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    • C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
    • C10M143/02—Polyethene
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    • C10M149/00—Lubricating compositions characterised by the additive being a macromolecular compound containing nitrogen
    • C10M149/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M149/06—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an amido or imido group
    • 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
    • C10M151/00—Lubricating compositions characterised by the additive being a macromolecular compound containing sulfur, selenium or tellurium
    • C10M151/02—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • 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
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation 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
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • 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
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/022—Ethene
    • 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
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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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
    • C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/26—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
    • C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/024—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an amido or imido group
    • 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
    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/046—Polyamines, i.e. macromoleculars obtained by condensation of more than eleven amine 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
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/06—Macromolecular compounds obtained by functionalisation op polymers with a nitrogen containing compound
    • 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
    • C10M2221/00—Organic macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2221/02—Macromolecular compounds obtained by reactions of monomers involving only carbon-to-carbon unsaturated bonds
    • 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
    • C10M2221/00—Organic macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2221/04—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2221/043—Polyoxyalkylene ethers with a thioether group
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2070/00—Specific manufacturing methods for lubricant compositions
    • C10N2070/02—Concentrating of additives

Definitions

  • French published application No. 2423530 grafts maleic anhydride on an ethylene-propylene copolymer with maleic anhydride at 150° to 210°C followed by reaction with an amine having one primary or secondary group.
  • the low crystallinity copolymer segments comprise from about 90 to 10 wt.%, preferably from about 80 to 15 wt.%, and more preferably from about 65 to 35 wt.%, of the total copolymer chain, and contain an average ethylene content of from about 20 to 53 wt.%, preferably from about 30 to 50 wt.%, and more preferably from about 35 to 50 wt.%.
  • the copolymers will contain at least one crystallizable segment rich in methylene units (hereinafter called an "M" segment) and at least one low crystallinity ethylene-alpha-olefin copolymer segment (hereinafter called a "T" segment).
  • the copolymers may be therefore illustrated by copolymers selected from the group consisting of copolymer chain structures having the following segment sequences: wherein M and T are defined above, M 1 and M 2 can be the same or different and are each M segments, T and T 2 can be the same or different and are each T segments, x is an integer of from 1 to 3 and y is an integer of 1 to 3.
  • the Intra-CD of copolymer in accordance with the present invention is such that at least two portions of an individual intramolecularly heterogeneous chain, each portion comprising at least 5 weight percent of the chain, differ in composition from one another by at least 7 weight percent ethylene. Unless otherwise indicated, this property of Intra-CD as referred to herein is based upon at least two 5 weight percent portions of copolymer chain.
  • the Intra-CD of copolymer in accordance with the present invention can be such that at least two portions of copolymer chain differ by at least 10 weight percent ethylene. Differences of at least 20 weight percent, as well as, of at least 40 weight percent ethylene are also considered to be in accordance with the present invention.
  • the molecular weight distribution is very narrow, as characterized by at least one of a ratio of M w /M n of less than 2 and a ratio of M z /M w of less than 1.8.
  • MWD molecular weight distribution
  • the preferred copolymers have MwfMn less than about 1.5, with less than about 1.25 being most preferred.
  • the preferred M z /M w is less than about 1.5, with less than about 1.2 being most preferred.
  • copolymers of the instant invention may be produced by polymerization of a reaction mixture comprised of catalyst, ethylene and at least one additional alpha-olefin monomer, wherein the amounts of monomer, and preferably ethylene, is varied during the course of the polymerization in a controlled manner as will be hereinafter described. Solution polymerizations are preferred.
  • the composition of the catalyst used to produce alpha-olefin copolymers has a profound effect on copolymer product properties such as compositional dispersity and MWD.
  • the catalyst utilized in practicing processes in accordance with the present invention should be such as to yield essentially one active catalyst species in the reaction mixture. More specifically, it should yield one primary active catalyst species which provides for substantially all of the polymerization reaction. Additional active catalyst species could provide as much as 35% (weight) of the total copolymer. Preferably, they should account for about 10% or less of the copolymer.
  • the essentially one active species should provide for at least 65% of the total copolymer produced, preferably for at least 90% thereof.
  • the extent to which a catalyst species contributes to the polymerization can be readily determined using the below-described techniques for characterizing catalyst according to the number of active catalyst species.
  • Polymerizations in accordance with the present invention should be conducted in such a manner and under conditions sufficient to initiate propagation of essentially all copolymer chains simultaneously. This can be accomplished by utilizing the process steps and conditions described below.
  • the Intra-CD of the copolymer is such that at least two portions of an individual intramolecularly heterogeneous chain, each portion comprising at least 5 weight percent of said chain, differ in composition from one another by at least 7 weight percent ethylene.
  • the Intra-CD can be such that at least two portions of copolymer chain differ by at least 10 weight percent ethylene. Differences of at least 20 weight percent, as well as, 40 weight percent ethylene are also considered to be in accordance with the present invention.
  • Such unsaturated mono- and dicarboxylic acids, or anhydrides and thereof include fumaric acid, itaconic acid, maleic acid, maleic anhydride, chloromaleic anhydride, acrylic acid, methacrylic acid, crotonic acid, cinnamic acid, methyl acrylate, ethyl acrylate, methyl methacrylate, etc.
  • the grafting conditions are those which are effective to yield a graft copolymer which contains an ethylene copolymer backbone having substantially the same or similar MWD distribution as the ethylene copolymer reactant.
  • substantially the same or similar MWD is meant a MWD which is about 10% or less different from the MWD of the ungrafted ethylene-alpha-olefin copolymer, i.e., the difference between the MWD of ungrafted ethylene-alpha-olefin copolymer and grafted ethylene-alpha-olefin copolymer is about 10% or less.
  • the resultant grafted copolymer contains the residue of the ethylene copolymer as the backbone and the residue of the ethylenically unsaturated grafting material as the grafted moiety.
  • residues is meant the respective moieties produced by and remaining after the grafting process or reaction.
  • the ethylenically unsaturated grafting material may be maleic anhydride
  • succinic anhydride moiety that is grafted or attached to the ethylene copolymer backbone.
  • this succinic anhydride moiety is referred to herein as the residue of the ethylenically unsaturated grafting material, i.e., residue of maleic anhydride.
  • polyamines contain from 2 to about 7 nitrogens, from 7 (8 if an oxygen or sulfur is present) to about 80 carbons, and optionally a sulfur or oxygen atom.
  • polyamines include polyamines represented by the formula wherein:
  • This reaction can be conducted in a polar or non-polar solvent, e.g., xylene, toluene, benzene, and the like, and is preferably conducted in the presence of a mineral or synthetic lubricating oil.
  • a polar or non-polar solvent e.g., xylene, toluene, benzene, and the like, and is preferably conducted in the presence of a mineral or synthetic lubricating oil.
  • carboxylic acid component and the polyamine may be prereacted, and this prereacted carboxylic acid component/polyamine may then be coreacted with the carboxylic acid material grafted ethylene copolymer to form the nitrogen containing carboxylic acid material grafted ethylene copolymer of the instant invention.
  • olefin polymer and the dicarboxylic acid or derivative may be simply heated together as disclosed in U.S. Patents 3,361,673 and 3,401,118 to cause a thermal "enen" reaction to take place.
  • the olefin polymer can be first halogenated, for example, chlorinated or brominated to about 1 to 8 wt. %, preferably 3 to 7 wt.
  • a minor amount, e.g. 0.01 up to 49 wt %, preferably 0.05 to 25 wt. %, based on the weight of the total composition, of the V.I. inprover-dispersants produced in accordance with this invention can be incorporated into a major amount of an oleaginous material, such as a lubricating oil or hydrocarbon fuel, depending upon whether one is forming finished products or additive concentrates.
  • an oleaginous material such as a lubricating oil or hydrocarbon fuel, depending upon whether one is forming finished products or additive concentrates.
  • derivatized copolymer concentrations are usually within the range of about 0.01 to 25 wt %, of the total composition.
  • compositions when containing these conventional additives are typically blended into the base oil in amounts which are effective to provide their normal attendant function.
  • Representative effective amounts of such additives are illustrated as follows:
  • weight percents expressed herein are based on active ingredient (a.i.) content of the additive, and/or upon the total weight of any additive-package, or formulation which will be the sum of the a.i. weight of each additive plus the weight of total oil or diluent.
  • the Mwand M n of the grafted copolymer are 101,000 M w and 87,000 M n .
  • the M w /M n of this grafted copolymer is 1.16, while the M z /M w is 1.137.

Claims (31)

1. Composition comprenant le produit de réaction :
(i)
(a) d'un copolymère d'éthylène et d'au moins un autre monomère apha-oléfinique, ledit copolymère comprenant des chaînes de copolymère à hétérogénéité intramoléculaire contenant au moins un segment cristallisable de motifs méthylène et au moins un segment copolymère d'éthylène et d'alpha-oléfine de faible cristallinité, ce segment cristallisable constituant au moins 10 % en poids de la chaîne du copolymère et contenant au moins 57 % en poids d'éthylène, le segment de faible cristallinité ne contenant pas plus de 53 % en poids d'éthylène et le copolymère ayant une distribution de poids moléculaire caractérisée par l'un au moins d'un rapport MplMn inférieur à 2 et d'un rapport Mz/Mp inférieur à 1,8, et deux portions au moins d'une chaîne individuelle à hétérogénéité intramoléculaire, dont chacune constitue au moins 5 % en poids de ladite chaîne, différant l'une de l'autre dans leur composition d'au moins 7 % en poids d'éthylène, ledit copolymère étant greffé avec (b) une matière acide carboxylique à mono-insaturation éthylénique ayant 1-2 groupes acide carboxylique ou groupe anhydride pourformer un copolymère d'éthylène greffé, la distribution de poids moléculaire du copolymère greffé résultant s'écartant de 10 % ou moins de la distribution de poids moléculaire dudit copolymère d'éthylène (i) (a) ; et
(ii) au moins une polyamine contenant seulement un groupe amino primaire et au moins un groupe amino secondaire.
2. Composition suivant la revendication 1, dans laquelle le copolymère (i) (a) a une dispersité de composition intermoléculaire telle que 95 % en poids desdites chaînes du copolymère aient une composition qui diffère de 15 % en poids ou moins de ladite composition moyenne en éthylène.
3. Composition suivant la revendication 2, dans laquelle la dispersité de composition intermoléculaire du copolymère (i) (a) est telle que 95 % en poids desdites chaînes de copolymère aient une composition qui diffère de 13 % en poids ou moins de ladite composition moyenne en éthylène.
4. Composition suivant la revendication 3, dans laquelle la dispersité de composition intermoléculaire du copolymère (i) (a) est telle que 95 % en poids desdites chaînes de copolymère aient une composition qui diffère de 10 % en poids ou moins de ladite composition moyenne en éthylène.
5. Composition suivant l'une quelconque des revendications 1 à 4, dans laquelle le segment de faible cristallinité du copolymère (i) (a) comprend 20 à 53 % en poids d'éthylène.
6. Composition suivant la revendication 5, dans laquelle le segment de faible cristallinité du copolymère (i) (a) comprend 30 à 50 % en poids d'éthylène.
7. Composition suivant l'une quelconque des revendications 1 à 6, dans laquelle le segment cristallisable comprend au moins 57 % en poids d'éthylène.
8. Composition suivant l'une quelconque des revendications 1 à 7, dans laquelle le copolymère (i) (a) a une teneur minimale totale en éthylène de 20 % sur base pondérale.
9. Composition suivant l'une quelconque des revendications 1 à 8, dans laquelle le copolymère (i) (a) est caractérisé par une moyenne pondérale du poids moléculaire de 20 000 à 250 000.
10. Composition suivant l'une quelconque des revendications 1 à 9, dans laquelle le copolymère (i) (a) a une dispersion de poids moléculaire caractérisée par l'un au moins d'un rapport Mp/Mn inférieur à 1,5 et d'un rapport Mz/Mp inférieur à 1,5.
11. Composition suivant la revendication 10, dans laquelle le copolymère (i) (a) a une dispersion de poids moléculaire caractérisée par l'un au moins d'un rapport Mn inférieur à 1,25 et d'un rapport Mz/Mp inférieur à 1,2.
12. Composition suivant l'une quelconque des revendications 1 à 11, dans laquelle les séquences des segments de la chaîne du copolymère (i) (a) sont caractérisées par au moins l'une des structures :
Figure imgb0060
Figure imgb0061
Figure imgb0062
où x et y représentent chacun des nombres entiers de 1 à 3, M comprend ledit segment cristallisable, T comprend ledit segment de faible cristallinité, M1 et M2 sont identiques ou différents et comprennent chacun un segment M, et T et T2 sont identiques ou différents et comprennent chacun un segment T.
13. Composition suivant la revendication 12, dans laquelle les séquences de segments de la chaîne du copolymère (i)(a) sont caractérisées par la structure Il et x est égal à 1.
14. Composition suivant la revendication 12 ou la revendication 13, dans laquelle les segments T et T2 dans le copolymère (i)(a) ont principalement la même moyenne pondérale du poids moléculaire.
15. Composition suivant la revendication 14, dans laquelle la somme des moyennes pondérales des poids moléculaires des segments T et T2 dans le copolymère (i)(a) est principalement égal à la moyenne pondérale du poids moléculaire dudit segment M.
16. Composition suivant l'une quelconque des revendications 1 à 15, dans laquelle la matière acide carboxylique mono-insaturé (i)(b) est choisie dans le groupe comprenant une matière acide dicarboxylique mono-insaturé en C4 à C10, une matière acide monocarboxylique mono-insaturé en C3 à C10 et des mélanges de ces matières.
17. Composition suivant la revendication 16, dans laquelle la matière acide dicarboxylique mono-insaturé en C4 à C10 est choisie entre l'anhydride maléique, l'acide maléique et des mélanges de ces matières.
18. Composition suivant la revendication 17, dans laquelle la matière acide dicarboxylique mono-insaturé en C4 à C10 est l'anhydride maléique.
19. Composition suivant l'une quelconque des revendications 1 à 18, dans laquelle la polyamine contient 1 groupe amino primaire, 1 à 6 groupes amino secondaire et 7 à 80 atomes de carbone.
20. Composition suivant l'une quelconque des revendications 1 à 19, dans laquelle la polyamine contient en outre un atome de soufre ou d'oxygène.
21. Composition suivant l'une quelconque des revendications 1 à 20, dans laquelle la polyamine est représentée par la formule
Figure imgb0063
dans laquelle :
R1 est un groupe hydrocarbylène contenant 1 à environ 6 atomes de carbone ;
R2 est un groupe hydrocarbylène contenant 1 à environ 6 atomes de carbone ;
R3 est un groupe hydrocarbyle contenant 1 à environ 40 atomes de carbone ;
A est l'oxygène ou le soufre ;
y a la valeur 0 ou 1 ; et
z a une valeur de 1 à 6.
22. Composition suivant la revendication 21, dans laquelle R1 et R2 sont des groupes alkylène et R3 est un groupe alkyle.
23. Composition suivant la revendication 22, dans laquelle R1 et R2 représentent indépendamment des groupes alkylène contenant 2 à 4 atomes de carbone et R3 est un groupe alkyle contenant 5 à 30 atomes de carbone.
24. Composition suivant la revendication 23, dans laquelle R1 et R2 sont des groupes propylène et R3 est un groupe alkyle contenant 10 à 20 atomes de carbone.
25. Composition suivant l'une quelconque des revendications 1 à 24, comprenant le produit de réaction de (i), (ii) et (iii) d'un composant acide carboxylique à substituant hydrocarbyle en C50 à C400 contenant 1 à 2 groupes acide carboxylique ou groupe anhydride.
26. Composition suivant la revendication 25, dans laquelle le composant acide carboxylique à substituant hydrocarbyle en C50 à C400 (iii) comprend un acide ou anhydride dicarboxylique en C4 à C10 à substituant hydrocarbyle en C50 a C400.
27. Composition suivant la revendication 26, dans laquelle l'acide ou anhydride dicarboxylique à substituant hydrocarbyle en C50 à C400 est choisi entre un acide succinique à substituant hydrocarbyle en C50 à C400, un anhydride succinique à substituant hydrocarbyle en C50 à C400 et leurs mélanges.
28. Composition suivant la revendication 27, dans laquelle l'anhydride succinique à substituant hydrocarbyle en C50 à C400 comprend un anhydride succinique à substituant polybutényle.
29. Composition oléagineuse, comprenant :
(i) une matière oléagineuse ; et
(ii) une composition suivant l'une quelconque des revendications 1 à 28.
30. Composition suivant la revendication 29, dans laquelle (i) est une huile lubrifiante.
31. Composition suivant la revendication 29, contenant 0,001 à 20 % en poids de composant (ii).
EP90305567A 1989-05-30 1990-05-22 Agent améliorant l'indice de viscosité à buts multiples dérivé de polyamine contenant un groupe amine primaire et au moins un groupe amine secondaire et présentant des propriétés viscométriques améliorées à basse température Expired - Lifetime EP0400870B1 (fr)

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US35872989A 1989-05-30 1989-05-30
US358729 1989-05-30

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EP0400870A1 EP0400870A1 (fr) 1990-12-05
EP0400870B1 true EP0400870B1 (fr) 1993-09-08

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EP (1) EP0400870B1 (fr)
AU (1) AU628979B2 (fr)
BR (1) BR9002547A (fr)
CA (1) CA2015058C (fr)
DE (1) DE69003171T2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5296560A (en) * 1990-07-03 1994-03-22 Exxon Chemical Patents Inc. Ashless dispersants
ZA914609B (en) * 1990-07-03 1992-06-24 Exxon Chemical Patents Inc Ashless dispersants

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1131890B (it) * 1979-07-03 1986-06-25 Exxon Research Engineering Co Additivi stabili per lubrificanti,a base di copolimeri etilenico innestato ed aminato,e relativo processo di preparazione
US4505834A (en) * 1980-10-27 1985-03-19 Edwin Cooper, Inc. Lubricating oil compositions containing graft copolymer as viscosity index improver-dispersant
US4517104A (en) * 1981-05-06 1985-05-14 Exxon Research & Engineering Co. Ethylene copolymer viscosity index improver-dispersant additive useful in oil compositions
US4804794A (en) * 1987-07-13 1989-02-14 Exxon Chemical Patents Inc. Viscosity modifier polymers

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DE69003171D1 (de) 1993-10-14
DE69003171T2 (de) 1994-01-05
AU628979B2 (en) 1992-09-24
CA2015058C (fr) 1999-05-04
AU5598790A (en) 1990-12-06
EP0400870A1 (fr) 1990-12-05
CA2015058A1 (fr) 1990-11-30
BR9002547A (pt) 1991-08-13

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