EP0000424B1 - Lineare oder verzweigte Ester-Ätherblockcopolymere und ihre Verwendung als oberflächenaktive Stoffe allein oder in Mischungen mit üblichen oberflächenaktiven Stoffen - Google Patents

Lineare oder verzweigte Ester-Ätherblockcopolymere und ihre Verwendung als oberflächenaktive Stoffe allein oder in Mischungen mit üblichen oberflächenaktiven Stoffen Download PDF

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EP0000424B1
EP0000424B1 EP78300074A EP78300074A EP0000424B1 EP 0000424 B1 EP0000424 B1 EP 0000424B1 EP 78300074 A EP78300074 A EP 78300074A EP 78300074 A EP78300074 A EP 78300074A EP 0000424 B1 EP0000424 B1 EP 0000424B1
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soluble
weight
copolymer
component
molecular weight
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EP0000424A1 (de
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Alan Stuart Baker
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Imperial Chemical Industries Ltd
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Imperial Chemical Industries Ltd
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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
    • C10L1/32—Liquid carbonaceous fuels consisting of coal-oil suspensions or aqueous emulsions or oil emulsions
    • C10L1/328—Oil emulsions containing water or any other hydrophilic phase
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/66—Polyesters containing oxygen in the form of ether groups
    • C08G63/664—Polyesters containing oxygen in the form of ether groups derived from hydroxy carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
    • C09K23/42—Ethers, e.g. polyglycol ethers of alcohols or phenols
    • C09K23/44—Ether carboxylic acids

Definitions

  • This invention relates to novel polymeric compounds, more particularly to novel block or graft copolymers which are useful as surfactants in liquid systems consisting of an oil phase and an aqueous phase, to methods for preparing such copolymers, and to surfactant compositions containing them.
  • the block or graft copolymers of the invention belong to the class in which one type of polymeric component is derived from an oil-soluble complex monocarboxylic acid and another type of polymeric component is the residue of a water-soluble compound containing polyoxyalkylene chains.
  • Certain members of this class are already known from British Patent No. 1,469,531, namely copolymers consisting of a single block derived from the complex acid and a single block which is the residue of a polyalkylene glycol.
  • These copolymers possess surfactant properties, but the nature of their structure limits the range of variation of their chemical composition which is possible, and hence the ability to choose a composition which affords the optimum surface active characteristics for any given oil-water system.
  • the copolymers of the present invention overcome this disadvantage.
  • a block or graft copolymer suitable for use as a surfactant in a system consisting of an oil phase and an aqueous phase the copolymer having a general formula (A-COO) m -B, wherein m is an integer at least 2, wherein each polymeric component A has a molecular weight of at least 500 and is the residue of an oil-soluble complex monocarboxylic acid having the general structural formula in which
  • the units of the formula which are present in the molecule of the complex monocarboxylic acid as represented by formula I may be all the same or they may differ in respect of R 1 , R 2 and n.
  • the quantity p will not normally have the same unique value for all molecules of the complex acid but will be statistically distributed about an average value lying within the range stated, as is commonplace in polymeric materials.
  • the units of the formula which are present in the polyalkylene glycol or the polyether polyol as represented by formula II or formula III may be all the same or they may differ in respect of R 3 .
  • the quantity q in formula II will normally vary statistically about an average value within the range stated, and somewhat wider variation may be deliberately introduced if desired by deriving the component B from a mixture of two or more polyalkylene glycols of differing average chain lengths.
  • the quantity r in formula III will be subject to statistical variation about an average value within the stated range, with the additional latitude that the average value of r need not be the same for each of the m groupings linked to the residue R 4 ; in one or more of those groupings, r may indeed be zero, provided that the total number of units of the above formula in the polyether polyol molecule is not less than 10.
  • the component B may if desired be derived from a mixture of two or more different polyether polyols.
  • the complex monocarboxylic acid from which the polymeric components A are derived by the notional removal of the carboxyl group, is structurally the product of interesterification of one or more monohydroxy-monocarboxylic acids together with a monocarboxylic acid free from hydroxyl groups which acts as a chain terminator.
  • the hydrocarbon chains R, R and R 2 may be linear or branched.
  • R is preferably an alkyl group containing up to 25 carbon atoms, for example a straight-chain C,,H 3 ,-group derived from stearic acid.
  • R 1 is preferably a straight-chain alkyl group
  • R 2 is preferably a straight-chain alkylene group; for example, the unit containing R 1 and R 2 may be derived from 12-hydroxy-stearic acid.
  • the polyalkylene glycol of the formula II, from which the polymeric component B may be derived by the notional removal of the two terminal hydroxyl groups may be, for example, a polyethylene glycol, a polypropylene glycol, a mixed poly(ethylene-propylene) glycol or a mixed poly(ethylene-butylene) glycol, that is to say, R 3 may be hydrogen or a methyl or ethyl group.
  • the polyether polyol of the formula III from which the polymeric component B may alternatively be derived by the notional removal of the m terminal hydroxyl groups, is the product of condensation of an alkylene oxide such as ethylene oxide and/or propylene oxide with a compound containing a plurality of active hydrogen atoms.
  • the compounds in question may be a polyhydroxy compound such as glycerol, trimethylolpropane, pentaerythritol or sorbitol, or an internal anhydride of such a polyhydroxy compound, for example sorbitan; alternatively it may be an amino compound, for example ethylene diamine, diethylene triamine, hexamethylene diamine or phenylene diamine, or an amide or a polycarboxylic acid.
  • the polyether polyol is derived from a polyhydroxy compound, it is not necessarily the case that each of the original hydroxyl groups of that compound has reacted with the alkylene oxide, but any of those original hydroxyl groups which remain in the polyether polyol (i.e. where r is zero in the formula III) will normally take part in the linking of the component B to the components A in the same way as the hydroxyl groups which terminate the poly(oxyalkylene) chains.
  • the complex monocarboxylic acid is oil-soluble
  • the oil phase of the system in which the block or graft copolymer is to be used as surfactant should be better than a theta-solvent for the complex monocarboxylic acid.
  • theta-solvent is discussed in "Polymer Handbook” (Ed. Brandrup and lmmer- gut, Interscience, 1966) at pages IV 163-166. Briefly, this definition implies that a polymer which is dissolved in a solvent which is better than a theta-solvent therefore exists in a non- self-associated condition.
  • the polyalkylene glycol or polyether polyol is water-soluble, we mean similarly that the aqueous phase of the system should be better than a theta-solvent for the polyalkylene glycol or polyether polyol. In order for this requirement to be satisfied, it will usually be necessary for at least a substantial proportion of the oxyalkylene units in the polyalkylene glycol or polyether polyol to be derived from ethylene oxide.
  • each of the polymeric components A has a molecular weight of at least 1000 (by "molecular weight” is meant herein number average molecular weight).
  • the group R is derived from stearic acid and the unit containing R 1 and R 2 together is derived from 12-hydroxystearic acid
  • p will have a value of at least 2.
  • the polymeric component B has a molecular weight of at least 1000.
  • that component is the residue of a polyalkylene glycol which is derived from ethylene oxide exclusively, q will preferably have a value of at least 23.
  • the component B is the residue of a polyether polyol which is derived from ethylene oxide as the sole alkylene oxide, the total number of oxyethylene units in the molecule will preferably be at least 23.
  • the weight ratio of the combined components A to the component B may vary widely. Typically the ratio will lie in the range from 9:1 to 1:9, but weight ratios outside this range may be appropriate for certain applications of the copolymers.
  • the weight proportion of polyethylene glycol residues may be, for example, from 20% to 80%.
  • the block or graft copolymers of the invention may be obtained by procedures which are well known in the art. According to one procedure, they are prepared in two stages. In the first stage, the complex monocarboxylic acid from which the components A are to be derived is obtained by interesterification of a monohydroxy monocarboxylic acid in the presence of a non-hydroxylic monocarboxylic acid; in the second stage, this complex monocarboxylic acid is reacted with the polyalkylene glycol or polyether polyol from which the component B is to be derived, in the ratio of m molar proportions to 1 molar proportion respectively, according to the particular value of m in the case in question.
  • the hydroxyl group in the monohydroxy-monocarboxylic acid, and the carboxyl group in either carboxylic acid, may be primary, secondary or tertiary in character.
  • Suitable hydroxycarboxylic acids for use in the first stage include glycollic acid, lactic acid, hydracrylic acid and, in particular 12-hydroxystearic acid.
  • the non-hydroxylic carboxylic acid which acts as a chain terminator, and hence as a means of regulating the molecular weight of the complex monocarboxylic acid may be, for example, acetic acid, propionic acid, caproic acid, stearic acid or an acid derived from a naturally occurring oil, such as tall oil fatty acid.
  • 12-hydroxystearic acid normally contain about 15% of stearic acid as an impurity and can conveniently be used without further admixture to produce a complex acid of molecular weight about 1500-2000. Where the non-hydroxylic monocarboxylic acid is separately introduced, the proportion which is required in order to produce a complex monocarboxylic acid of a given molecular weight can be determined either by simple experiment or by calculation.
  • the interesterification of the monohydroxy-monocarboxylic acid and the non-hydroxylic monocarboxylic acid may be effected by heating the starting materials in a suitable hydrocarbon solvent such as toluene or xylene, which is able to form an azeotrope with the water produced in the esterification reaction.
  • a suitable hydrocarbon solvent such as toluene or xylene
  • the reaction is preferably carried out in an inert atmosphere, e.g. of nitrogen, at a temperature of up to 250°C, conveniently at the refluxing temperature of the solvent.
  • the hydroxyl group is secondary or tertiary the temperature employed should not be so high as to lead to dehydration of the acid molecule.
  • Catalysts for the interesterification such as p-toluene sulphonic acid, zinc acetate, zirconium naphthenate or tetrabutyl titanate, may be included, with the object of either increasing the rate of reaction at a given temperature or of reducing the temperature required for a given rate of reaction.
  • the complex monocarboxylic acid prepared in the first stage is reacted with the polyalkylene glycol or polyether polyol from which the component B is to be derived.
  • the polyalkylene glycol or polyether polyol from which the component B is to be derived.
  • m molar proportions of the acid according to the particular value of m in the case in question.
  • the reaction is suitably carried out under the same conditions as have been described for the first stage.
  • the two reactions described above are carried out simultaneously, that is to say, the monohydroxy-monocarboxylic acid, the non-hydroxylic monocarboxylic acid and the polyalkylene glycol or polyether polyol are all heated together, in the same proportions as would have been taken for the first procedure, in a hydrocarbon solvent at a temperature of up to 250°C, optionally in the presence of a catalyst and observing due precautions.
  • copolymers obtained by the two alternative procedures appear to be very similar in composition and characteristics but, because of its simplicity and consequent greater economy, the second procedure is to be preferred.
  • novel block or graft copolymers of the invention are useful particularly by virtue of their pronounced surface active properties. Thus they are highly effective as, for example, wetting and dispersing agents, as emulsifiers and as emulsion stabilisers.
  • a particular feature of the copolymers is that they can be either water-soluble or oil-soluble, depending principally upon the chemical composition of the polyalkylene glycol or polyether polyol residue constituting the component B, and on the weight proportion of the total molecule which it provides.
  • copolymers in which the components A are derived essentially from poly(12-hydroxystearic acid) and the component B is derived solely from polyethylene glycol, and in which the component B provides at least 65% by weight of the total copolymer are water-soluble.
  • copolymers containing 40% or less by weight of a polyethylene glycol residue component B are not only soluble in aliphatic hydrocarbons but they also have the property of solubilising in such solvents conventional low molecular surfactants such as alkylphenol/ethylene oxide condensates, which are not of themselves soluble in aliphatic hydrocarbons.
  • An example of a particular block or graft copolymer according to the invention is an (A-COO) 2 -B block copolymer in which each A component is the residue of poly(12-hydroxy- stearic acid) chain-terminated with stearic acid and of molecular weight approximately 1750, and the B component is the residue of polyethylene glycol of molecular weight approximately 1500.
  • This copolymer thus contains 30% of polyethylene glycol residues and is soluble in hydrocarbon oils, including those low in aromatic content such as low odour kerosene, diesel oil and mineral oils.
  • a conventional surfactant we mean a surfactant in which the oil-soluble - component (or each individual oil-soluble component, if more than one is present in the molecule) has a molecular weight below 500.
  • Such blends may be of widely varying composition; thus the conventional surfactant may be non-ionic, cationic, anionic or amphoteric in character, and it may be either water-soluble or oil-soluble. Depending upon these factors, the blends may be useful for a variety of different, surfactant applications such as emulsifiers and cleaning compositions.
  • the conventional surfactant has an oil-soluble component of molecular weight less than 350.
  • One class of surfactant blend according to the invention is of special interest for the emulsification of water in hydrocarbon fuel oils.
  • an oil-soluble copolymer of the invention is blended with an oil-soluble conventional surfactant.
  • an (A-COO)2-B block copolymer in which each A component is derived from poly(12-hydroxystearic acid) of molecular weight 1750 and the B component is derived from polyethylene glycol of molecular weight 1500 and constitutes 30% by weight of the total copolymer, is blended with a condensate of nonylphenol with four molar proportions of ethylene oxide, preferably in the weight proportions of from 3:1 to 1:3.
  • Another particular blend of interest for the same purpose consists of the same (A-COO) 2- B block copolymer as that just referred to and a condensate of a commercial blend of aliphatic alcohols containing 13 and 15 carbon atoms respectively with an average of four molar proportions of ethylene oxide, preferably in the weight proportions of from 3:1 to 1:3.
  • These blends are capable of giving stable emulsions of up to 25% or more by weight of water in hydrocarbon fuel oils such as petrol (gasoline) kerosene and diesel oil, particularly when emulsification is effected by an emulsifying device of the high energy mechanical or ultrasonic type.
  • the water which is thus emulsified may contain a lower alcohol, for example methanol, whereby the stability of the emulsion towards low temperatures may be enhanced and also any tendency for separation of the emulsion, because of a density difference between the two phases, is reduced.
  • a lower alcohol for example methanol
  • co-solvents of low molecular weight which have some degree of surface activity in water-oil systems
  • examples of such co-solvents are certain alcohols, such as hexanol, nonanol and decanoL
  • Another class of surfactant blend according to the invention is of special interest for the preparation of water-emulsifiable cleaning compositions, which typically comprise a hydrocarbon solvent and one or more conventional surfactants as hereinbefore defined.
  • these compositions typically contain hydrocarbon solvents of low aromatic content
  • their formulation can present difficulty because of the fact that many of the conventional low molecular weight surfactants of the ethylene oxide condensate type, whilst being soluble in aromatic hydrocarbons or in hydrocarbon mixtures containing substantial proportions of aromatic constituents, are not soluble in aliphatic hydrocarbons alone.
  • surfactants are not normally soluble in the aqueous phase into which the composition is to be emulsified.
  • a further blend according to the invention consists of from 98% to 40% by weight of an aliphatic hydrocarbon liquid, from 1% to 59% by weight of an oil-soluble (A-COO) m -B type copolymer as hereinbefore defined and from 1% to 59% by weight of a conventional surfactant insoluble in the hydrocarbon, the combined percentage weights of the copolymer and the conventional surfactant not exceeding 60.
  • the blend may, for example, consist of from 98% to 80% by weight of low-odour kerosene or similar aliphatic hydrocarbon of low aromatic content, from 1 % to 19% by weight of an (A-C00)2 B copolymer, in which each A component is derived from poly(12-hydroxy-stearic acid) of molecular weight approximately 1750 and the B component is derived from polyethylene glycol of molecular weight 1500 and constitutes 30% by weight of the total copolymer, and from 1 % to 19% by weight of a condensate of nonylphenol with an average of 6 molar proportions of ethylene oxide, the combined percentage weights of the second and third. constituents not exceeding 20.
  • an (A-C00)2 B copolymer in which each A component is derived from poly(12-hydroxy-stearic acid) of molecular weight approximately 1750 and the B component is derived from polyethylene glycol of molecular weight 1500 and constitutes 30% by weight of the total copolymer,
  • compositions which are useful as compositions for the forming of cutting oils, other metal-working fluids and fluids for hydraulic power transmission.
  • Such compositions are customarily concentrates of mineral oil (often as low aromatic content), optionally together with other lubricants, corrosion inhibitors, etc., which are emulsifiable in water to give oil-in-water type emulsions.
  • a block or graft copolymer according to the invention may be blended with an oil-soluble conventional surfactant and a water-soluble conventional surfactant, together with a mineral oil.
  • the composition may optionally contain also a corrosion inhibitor such as a long chain amine or a petroleum sulphonate, as well as a surface- active solvent such as an aliphatic alcohol.
  • a block copolymer of similar type to that described in Example 1 (ii) but containing 39% polyethylene glycol residues was prepared, in the manner described in that Example, from 314.2 parts of polyethylene glycol mol. wt. 4000, 141.4 parts of polyethylene glycol mol. wt. 1500, 700 parts of commercial 12-hydroxy- stearic acid, 2.4 parts of tetrabutyl titanate and 41 parts of xylene; the product was condensed to an acid value of 5.0 mg KOH/g and the solids content was 90.5%.
  • Example 1 (ii) A block copolymer similar to that of Example 1 (ii) but containing 50% polyethylene glycol residues was prepared, in the manner described in that Example from 523.6 parts of polyethylene glycol mol. wt. 4000, 59.0 parts of polyethylene glycol mol. wt. 1500, 583.3 parts of commercial 12-hydroxystearic acid, 2.3 parts of tetrabutyl titanate and 60 parts of xylene. The product was condensed to an acid value of 5.3 mg KOH/g and the solids content was 92.1
  • Example 1 (ii) A block copolymer similar to that of Example 1 (ii) but containing 62% polyethylene glycol residues was prepared, in the manner described in that Example, from 713.4 parts of polyethylene glycol mol. wt. 4000, 437.5 parts of commercial 12-hydroxystearic acid, 2.3 parts tetrabutyl titanate and 90 parts of xylene; the product was condensed to an acid value of 5.9 mg KOH/g and the solids content was 91.2%.
  • a block copolymer of lower molecular weight than that described in Example 1 (ii) and containing 30% polyethylene glycol residues was prepared, in the manner described in that Example, from 303 parts of polyethylene glycol mol. wt. 1000, 54 parts of tall oil fatty acids, 643 parts of commercial 12-hydroxystearic acid and 52 parts of xylene; the product was condensed to an acid value of 5.9 mg KOH/g and the solids content was 94.5%.
  • Emulsions were prepared by blending in a high-shear agitator 85 parts of diesel fuel oil, 15 parts of demineralised water and each in turn of the following surfactant additions:-
  • An emulsion of water in diesel fuel oil which was stable at temperatures down to 15°C was prepared by incorporating, by means of a high-shear agitator, 3.75 parts of methanol and 11.25 parts of dimineralised water into 85 parts of the oil containing 0.24 parts of a condensate of nonylphenol with an average of 4 molar proportions of ethylene oxide and 0.24 parts of the block copolymer described in Example 1 (ii). This emulsion showed little separation after standing for 1 week.
  • a water-in-mineral oil emulsion was prepared with the aid of a high-shear agitator by adding 10 parts of demineralised water to 90 parts of a mineral oil containing 0.15 part of the block copolymer described in Example 1 (i) and 0.15 part of the non-ionic surfactant described in Example 8. This emulsion showed little separation after 24 hours.

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Claims (10)

1. Copolymer, welches sich als oberflächenaktives Mittel in einem System eignet, das aus einer Ölphase und einer wäßrigen Phase besteht, wobei das Copolymer eine Art einer polymeren Komponente, die sich von einer öllöslichen, komplexen Monocarbonsäure ableitet, und eine weitere Art einer polymeren Komponente, welche den Rest einer wasserlöslichen, Polyoxyalkylenketten enthaltenden Verbindung darstellt, enthält, dadurch gekennzeichnet, daß das Copolymer die allgemeine Formel (A-COO)m-B aufweist, worin m eine Ganzzahl von mindestens 2 ist, worin jede polymere Komponente A ein Molekulargewicht von mindestens 500 aufweist und den Rest einer öllöslichen, komplexen Monocarbonsäure der allgemeinen Strukturformel darstellt:
Figure imgb0014
worin
R für Wasserstoff oder eine einwertige Kohlenwasserstoff- oder substituierte Kohlenwasserstoffgruppe steht,
R1 für Wasserstoff oder eine einwertige C1-C24-Kohlenwasserstoffgruppe steht,
R2 für eine zweiwertige C1-C24-Kohlenwasserstoffgruppe steht,
n für null oder 1 steht und
p für null oder eine Ganzzahl von 1 bis 200 steht,
und worin jede polymere Komponente B ein Molekulargewicht von mindestens 500 aufweist und für den Fall, daß m 2 ist, den zweiwertigen Rest eines wasserlöslichen Polyalkylenglycols der allgemeinen Formel darstellt:
Figure imgb0015
worin
R3 für Wasserstoff oder eine C1-C3-Alkylgruppe steht und
q für eine Ganzzahl von 10 bis 500 steht, oder für den Fall, daß m größer als 2 ist, den Rest mit der Wertigkeit m eines wasserlöslichen Polyätherpolyols der allgemeinen Formel darstellt:
Figure imgb0016
worin
R3 und m die oben angegebenen Bedeutungen besitzen,
die Anzahl r von
Figure imgb0017
Einheiten, die mit jeder einzelnen OH -Gruppe verbunden sind, null oder eine Ganzzahl von 1 bis 500 ist, mit der Maßgabe, daß die gesamte Anzahl dieser Einheiten im Molekül mindestens 10 beträgt, und
R4 für den Rest einer organischen Verbindung steht,

die im Molekül m Wasserstoffatome enthält, die gegenüber einem Alkylenoxid reaktiv sind.
2. Copolymer nach Anspruch 1, in welchem jede der polymeren Komponenten A ein Molekulargewicht von mindestens 1000 aufweist.
3. Copolymer nach Anspruch 1 oder 2, in welchem die polymere Komponente B ein Molekulargewicht von mindestens 1000 aufweist.
4. Copolymer nach einem der Ansprüche 1 bis 3, in welchem m für 2 steht, die polymeren Komponenten A sich von mit Stearinsäure abgeschlossenen Poly-(12-hydroxystearinsäure)-Ketten ableiten und die polymere Komponente B sich von Polyäthylenglycol ableitet.
5. Copolymer nach Anspruch 4, welches wasserlöslich ist und in welchem die Komponente B mindestens 65 Gew.-% des gesamten Copolymers ausmacht.
6. Copolymer nach Anspruch 4, welches in aliphatischen Kohlenwasserstoffen löslich ist und in welchem die Komponente B nicht mehr als 40 Gew.-% des gesamten Copolymers ausmacht.
7. Copolymer nach Anspruch 6, in welchem jede polymere Komponente A ein annäherndes Molekulargewicht von 1750 aufweist und die Komponente B ein annäherndes Molekulargewicht von 1500 aufweist, wobei die Komponente B 30 Gew.-% des gesamten Copolymers ausmacht.
8. Gemisch aus 5 bis 99 Gew.-% eines Copolymers nach Anspruch 1 und 1 bis 95 Gew.-% eines üblichen oberflächenaktiven Mittels, in welchem die öllösliche Komponente ein Molekulargewicht von weniger als 500 besitzt.
9. Gemisch aus einem Copolymer nach Anspruch 7 und einem Kondensat von Nonylphenol mit vier molaren Anteilen Äthylenoxid, wobei das Gewichtsverhältnis 3:1 bis 1:3 beträgt.
10. Gemisch aus 98 bis 40 Gew.-% eines flüssigen aliphatischen Kohlenwasserstoffs, 1 bis 59 Gew.-% eines öllöslichen Copolymers nach Anspruch 1 und 1 bis 59 Gew.-% eines üblichen, in dem Kohlenwasserstoff unlöslichen oberflächenaktiven Mittels, dessen öllösliche Komponente ein Molekulargewicht von weniger als 500 aufweist, wobei die vereinigten Gewichte des Copolymers und des oberflächenaktiven Mittels 60% des gesamten Gemischs nicht überschreiten.
EP78300074A 1977-07-12 1978-06-23 Lineare oder verzweigte Ester-Ätherblockcopolymere und ihre Verwendung als oberflächenaktive Stoffe allein oder in Mischungen mit üblichen oberflächenaktiven Stoffen Expired EP0000424B1 (de)

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DE (1) DE2862369D1 (de)
DK (1) DK311278A (de)
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IT (1) IT1097231B (de)
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WO1996016728A1 (de) 1994-12-02 1996-06-06 Henkel Kommanditgesellschaft Auf Aktien Wasser-in-öl-emulsionen

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AU3777378A (en) 1980-01-10
AU523572B2 (en) 1982-08-05
JPS6470525A (en) 1989-03-16
DE2862369D1 (en) 1984-03-08
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ES471652A1 (es) 1979-10-01
CA1126288A (en) 1982-06-22
DK311278A (da) 1979-01-13
JPH0134532B2 (de) 1989-07-19
NZ187767A (en) 1980-10-24
JPS5418898A (en) 1979-02-13
JPH0317534B2 (de) 1991-03-08
US4203877A (en) 1980-05-20
IT7825616A0 (it) 1978-07-12
JPH0411251B2 (de) 1992-02-27
ZA783802B (en) 1979-07-25
EP0000424A1 (de) 1979-01-24
IT1097231B (it) 1985-08-26

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