DE4435404A1 - Process for the preparation of stabilized aqueous polyolefin wax dispersions - Google Patents

Process for the preparation of stabilized aqueous polyolefin wax dispersions

Info

Publication number
DE4435404A1
DE4435404A1 DE4435404A DE4435404A DE4435404A1 DE 4435404 A1 DE4435404 A1 DE 4435404A1 DE 4435404 A DE4435404 A DE 4435404A DE 4435404 A DE4435404 A DE 4435404A DE 4435404 A1 DE4435404 A1 DE 4435404A1
Authority
DE
Germany
Prior art keywords
wax
polyolefin wax
alkyl
alcohol
characterized records
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE4435404A
Other languages
German (de)
Inventor
Codina Antoni Soler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Pulcra SA
Original Assignee
Henkel AG and Co KGaA
Pulcra SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA, Pulcra SA filed Critical Henkel AG and Co KGaA
Priority to DE4435404A priority Critical patent/DE4435404A1/en
Priority to PCT/EP1995/003796 priority patent/WO1996010599A1/en
Publication of DE4435404A1 publication Critical patent/DE4435404A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/02Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • C08J3/05Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from solid polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D19/00Degasification of liquids
    • B01D19/02Foam dispersion or prevention
    • B01D19/04Foam dispersion or prevention by addition of chemical substances
    • B01D19/0404Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/49Phosphorus-containing compounds
    • C08K5/51Phosphorus bound to oxygen
    • C08K5/52Phosphorus bound to oxygen only
    • C08K5/521Esters of phosphoric acids, e.g. of H3PO4
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D123/00Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
    • C09D123/02Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D123/04Homopolymers or copolymers of ethene
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K23/00Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
    • C09K23/003Organic compounds containing only carbon and hydrogen
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/165Ethers
    • D06M13/17Polyoxyalkyleneglycol ethers
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/244Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
    • D06M13/282Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing phosphorus
    • D06M13/292Mono-, di- or triesters of phosphoric or phosphorous acids; Salts thereof
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/244Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
    • D06M13/282Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing phosphorus
    • D06M13/292Mono-, di- or triesters of phosphoric or phosphorous acids; Salts thereof
    • D06M13/295Mono-, di- or triesters of phosphoric or phosphorous acids; Salts thereof containing polyglycol moieties; containing neopentyl moieties
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/227Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment

Abstract

Stabilised aqueous polyolefine wax dispersions can be produced by (a) producing an aqueous solution of an acid tenside dispersant and finely divided polyolefine wax and (b) subsequently neutralising the dispersion by the addition of alkaline hydroxides above the melting point of the wax.

Description

Gebiet der ErfindungField of the Invention

Die Erfindung betrifft ein Verfahren zur Herstellung stabili­ sierter wäßriger Polyolefinwachs-Dispersionen, bei dem man wäßrige Dispersionen aus einem Polyolefinwachs und einem sau­ ren tensidischen Dispergiermittel bei erhöhter Temperatur und gegebenenfalls erhöhtem Druck neutralisiert.The invention relates to a method for producing stabili based aqueous polyolefin wax dispersions, in which one aqueous dispersions of a polyolefin wax and a sau ren surfactant dispersant at elevated temperature and if necessary neutralized increased pressure.

Stand der TechnikState of the art

Polymere auf Basis Ethylen und/oder Propylen mit einer mitt­ leren Molmasse im Bereich von 500 bis 20 000 weisen einen wachsartigen Charakter auf. Wäßrige Dispersionen dieser Po­ lyolefinwachse werden daher seit langem als Ersatz für na­ türliche Wachsemulsionen eingesetzt und dienen beispielsweise zur Versiegelung von harten Oberflächen, zur textilen Ausrü­ stung oder als Entschäumer.Polymers based on ethylene and / or propylene with an average leren molecular weight in the range of 500 to 20,000 have a waxy character. Aqueous dispersions of this bottom Lyolefin waxes have therefore long been a substitute for na Door wax emulsions used and serve for example for sealing hard surfaces, for textile finishing or as a defoamer.

Ein Problem bei der Herstellung dieser Polyolefinwachsdis­ persionen besteht darin, feinteilige Dispersionen zu erzie­ len, die über einen möglichst langen Zeitraum stabil sind und nicht sedimentieren. Eine Möglichkeit, die Dispergierbarkeit der Polyolefine zu verbessern, besteht in einer oxidativen Oberflächenbehandlung der Polymere. Hierbei werden Methyl- zu Carboxylgruppen oxidiert und die Polarität der Wachse erhöht. Üblicherweise werden die Polyolefine jedoch in die wäßrige Lösung eines tensidischen Dispergiermittels, vorzugsweise eines Alkylphosphates, eingerührt und über den Schmelzpunkt erhitzt. Die auf diesem Wege zugänglichen Dispersionen sind zwar hinreichend feinteilig, weisen jedoch eine nicht immer zufriedenstellende Lagerstabilität auf.A problem in the manufacture of these polyolefin wax disks persions consists of educating finely divided dispersions  len that are stable for as long as possible and do not sediment. One way of dispersibility To improve the polyolefins is an oxidative Surface treatment of the polymers. Here, methyl- Carboxyl groups oxidized and the polarity of the waxes increased. Usually, however, the polyolefins are in the aqueous Solution of a surfactant dispersant, preferably of an alkyl phosphate, stirred in and above the melting point heated. The dispersions accessible in this way are Although sufficiently fine-grained, they do not always have one satisfactory storage stability.

Die Aufgabe der Erfindung hat somit darin bestanden, ein verbessertes Verfahren zur Herstellung von feinteiligen wäß­ rigen Polyolefinwachs-Dispersionen mit verbesserter Lager­ stabilität zur Verfügung zu stellen.The object of the invention was therefore a improved process for the production of finely divided aq rige Polyolefinwachs-Dispersions with improved storage to provide stability.

Beschreibung der ErfindungDescription of the invention

Gegenstand der Erfindung ist ein Verfahren zur Herstellung stabilisierter wäßriger Polyolefinwachs-Dispersionen, bei dem manThe invention relates to a method for producing stabilized aqueous polyolefin wax dispersions in which one

  • (a) eine wäßrige Lösung aus einem sauren tensidischen Dis­ pergiermittel und feinverteiltem Polyolefinwachs her­ stellt und(a) an aqueous solution of an acidic surfactant dis Pergiermittel and finely divided polyolefin wax represents and
  • (b) die Dispersion anschließend durch Zugabe von Alkalihy­ droxiden oberhalb des Schmelzpunktes des Wachses neutra­ lisiert.(b) the dispersion is then added by adding alkali metal droxides above the melting point of the wax neutra lized.

Nachdem bekannt war, Polyolefinwachs-Dispersionen durch die Verwendung von Tensiden und insbesondere neutralisierten Alkylphosphaten zu stabilisieren, wurde überraschenderweise festgestellt, daß besonders feinteilige Dispersionen verbes­ serter Stabilität resultieren, wenn man Tenside in saurer Form, vorzugsweise saure Alkylphosphate, und Polyolefinwachse gegebenenfalls unter Druck einer gemeinsamen Neutralisation unterwirft.After it was known by the polyolefin wax dispersions Use of surfactants and especially neutralized Stabilizing alkyl phosphates has surprisingly been found that particularly fine dispersions verbes Serter stability result when surfactants in acid Form, preferably acidic alkyl phosphates, and polyolefin waxes possibly under pressure of a common neutralization submits.

DispergiermittelDispersant

Als Dispergiermittel kommen grundsätzlich anionische Tenside in ihrer sauren, d. h. nicht neutralisierten Form in Betracht. Typische Beispiele sind Alkylbenzolsulfonate, Alkansulfonate, Olefinsulfonate, Alkylethersulfonate, Glycerinethersulfonate, α-Methylestersulfonate, Sulfofettsäuren, Alkylsulfate, Fett­ alkoholethersulfate, Glycerinethersulfate, Hydroxymischether­ sulfate, Monoglycerid(ether)sulfate, Fettsäureamid(ether)sul­ fate, Mono- und Dialkylsulfosuccinate, Mono- und Dialkylsul­ fosuccinamate, Sulfotriglyceride, Amidseifen, Ethercarbon­ säuren, Fettsäureisethionate, Fettsäuresarcosinate, Fettsäu­ retauride, Acyllactylate, Alkyloligoglucosidsulfate und Pro­ teinfettsäurekondensate (insbesondere pflanzliche Produkte auf Sojabasis). Sofern die anionischen Tenside Polyglycol­ etherketten enthalten, können sie eine konventionelle, vor­ zugsweise jedoch eine eingeengte Homologenverteilung aufwei­ sen. Vorzugsweise handelt es sich bei den Dispergiermitteln um Alkyl- bzw. Alkyletherphosphate in der sauren Form. Anionic surfactants are generally used as dispersants in their acidic, d. H. not neutralized form into consideration. Typical examples are alkylbenzenesulfonates, alkanesulfonates, Olefin sulfonates, alkyl ether sulfonates, glycerol ether sulfonates, α-methyl ester sulfonates, sulfo fatty acids, alkyl sulfates, fat alcohol ether sulfates, glycerol ether sulfates, hydroxy mixed ethers sulfates, monoglyceride (ether) sulfates, fatty acid amide (ether) sul fate, mono- and dialkylsulfosuccinates, mono- and dialkylsul fosuccinamate, sulfotriglycerides, amide soaps, ether carbon acids, fatty acid isethionates, fatty acid sarcosinates, fatty acid retaurides, acyl lactylates, alkyl oligoglucoside sulfates and Pro fatty acid condensates (especially vegetable products based on soy). If the anionic surfactants polyglycol Containing ether chains, they can be a conventional one but preferably a narrow homolog distribution sen. The dispersants are preferably to alkyl or alkyl ether phosphates in the acidic form.  

Alkyl(ether)phosphateAlkyl (ether) phosphates

Alkylphosphate und Alkyletherphosphate stellen bekannte anio­ nische Tenside dar, die üblicherweise durch Umsetzung von gegebenenfalls ethoxylierten Fettalkoholen mit Phosphorpent­ oxid hergestellt werden. In Abhängigkeit des Einsatzverhält­ nisses der Komponenten werden dabei technische Gemische er­ halten, die überwiegend Mono- und Dialkylester, neben Tri­ estern, Phosphorsäure und nicht umgesetzter Alkoholkomponente enthalten. Übersichten zu diesem Thema sind beispielsweise von R. S. Cooper sowie G. Imokawa in J. Am. Oil. Chem. Soc. 41, 337 (1964) bzw. 55, 839 (1978), H. Distler in Tenside Detergents 12, 263 (1975) und O′Lennick in Soap, Cosm., Chem. Spec. 7, 26 (1986) erschienen.Alkyl phosphates and alkyl ether phosphates are known anio African surfactants, which are usually by the implementation of optionally ethoxylated fatty alcohols with phosphorus pent oxide are produced. Depending on the application Technical components are then used in the components hold the predominantly mono and dialkyl esters, in addition to tri esters, phosphoric acid and unreacted alcohol component contain. Overviews on this topic are, for example by R. S. Cooper and G. Imokawa in J. Am. Oil. Chem. Soc. 41, 337 (1964) and 55, 839 (1978), H. Distler in Tenside Detergents 12, 263 (1975) and O'Lennick in Soap, Cosm., Chem. Spec. 7, 26 (1986) appeared.

Alkyl(ether)phosphate, die im Sinne der Erfindung in Betracht kommen, folgen der Formel (I),Alkyl (ether) phosphates which are considered in the context of the invention come, follow the formula (I),

in der R¹ für einen linearen oder verzweigten Alkylrest mit 6 bis 22 Kohlenstoffatomen, R² für Wasserstoff oder eine Gruppe R¹(OCH₂CH₂)n und n für 0 oder Zahlen von 1 bis 10 steht.in which R¹ is a linear or branched alkyl radical having 6 to 22 carbon atoms, R² is hydrogen or a group R¹ (OCH₂CH₂) n and n is 0 or numbers from 1 to 10.

Typische Beispiele sind Mono- und/oder Dialkylester auf Basis von Addukten von 1 bis 10, vorzugsweise 2 bis 8 Mol Ethylen­ oxid an Capronalkohol, Caprylalkohol, 2-Ethylhexylalkohol, Caprinalkohol, Laurylalkohol, Isotridecylalkohol, Myristylal­ kohol, Cetylalkohol, Palmoleylalkohol, Stearylalkohol, Iso­ stearylalkohol, Oleylalkohol, Elaidylalkohol, Petroselinylal­ kohol, Linolylalkohol, Linolenylalkohol, Elaeostearylalkohol, Arachylalkohol, Gadoleylalkohol, Behenylalkohol und Erucylal­ kohol sowie deren technische Mischungen, die z. B. bei der Hochdruckhydrierung von technischen Methylestern auf Basis von Fetten und Ölen oder Aldehyden aus der Roelen′schen Oxo­ synthese sowie als Monomerfraktion bei der Dimerisierung von ungesättigten Fettalkoholen anfallen.Typical examples are mono- and / or dialkyl esters based on adducts of 1 to 10, preferably 2 to 8, moles of ethylene oxide on capron alcohol, caprylic alcohol, 2-ethylhexyl alcohol,  Caprinal alcohol, lauryl alcohol, isotridecyl alcohol, myristylal alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, iso stearyl alcohol, oleyl alcohol, elaidyl alcohol, petroselinylal alcohol, linolyl alcohol, linolenyl alcohol, elaeostearyl alcohol, Arachyl alcohol, gadoleyl alcohol, behenyl alcohol and erucylal alcohol and their technical mixtures, the z. B. at the High pressure hydrogenation of technical methyl esters based of fats and oils or aldehydes from Roelen oxo synthesis and as a monomer fraction in the dimerization of unsaturated fatty alcohols.

Besonders bevorzugt ist der Einsatz von Alkylphosphaten bzw. Alkyletherphosphaten mit einem Veresterungsgrad im Bereich von 1 bis 2,5 und vorzugsweise 1,3 bis 2,1 auf Basis von 2- Ethylhexanol oder C12/14- bzw. C12/18-Kokosfettalkohol, Talg­ fettalkohol sowie von deren Anlagerungsprodukten mit 1 bis 5 Mol Ethylenoxid.The use of alkyl phosphates or alkyl ether phosphates with a degree of esterification in the range from 1 to 2.5 and preferably 1.3 to 2.1 based on 2-ethylhexanol or C 12/14 or C 12/18 coconut fatty alcohol is particularly preferred , Tallow fatty alcohol and their adducts with 1 to 5 moles of ethylene oxide.

PolyolefinwachsePolyolefin waxes

Unter Polyolefinwachsen sind überwiegend lineare Polyolefine mit wachsartigem Charakter zu verstehen. Technische Bedeutung haben Polypropylen- und insbesondere Polyethylenwachse, bei denen es sich um Produkte mit relativ niedrigen Molmassen im Bereich von 500 bis 20 000 handelt. Die Herstellung der Poly­ olefinwachse erfolgt in der Regel durch direkte Hoch- oder Niederdruckpolymerisation der Monomere oder durch gezielte Depolymerisation von Produkten höherer Molmassen. Modifizier­ te Polyolefinwachse können durch Copolymerisation von Ethylen mit geeigneten anderen Monomeren wie beispielsweise Vinylace­ tat oder Acrylsäure hergestellt werden. Schließlich ist es möglich, die Dispergierbarkeit von Polyolefinen durch oxida­ tive Oberflächenbehandlung zu verbessern. Übersichten zu die­ sem Thema finden sich beispielsweise in Ullmann′s Enzyklopä­ die der technischen Chemie (4. Aufl.), 24, 36 sowie Enzcycl. Polym. Sci. Engng. 17, 792f.Linear polyolefins are predominantly among polyolefin waxes to understand with a waxy character. Technical meaning have polypropylene and especially polyethylene waxes which are products with relatively low molecular weights in Range from 500 to 20,000. The production of the poly olefin waxes are usually done by direct up or down Low pressure polymerization of the monomers or by targeted Depolymerization of products with higher molecular weights. Modify Polyolefin waxes can be obtained by copolymerizing ethylene with suitable other monomers such as Vinylace  tat or acrylic acid can be produced. After all it is possible, the dispersibility of polyolefins by oxida tive surface treatment to improve. Overviews of the his subject can be found, for example, in Ullmann’s Encyclopaedia those of technical chemistry (4th ed.), 24, 36 and Enzcycl. Polym. Sci. Narrow 17, 792f.

Im Sinne des erfindungsgemäßen Verfahrens ist der Einsatz von high-density Polyethylenwachs mit einem mittleren Molekular­ gewicht im Bereich von 500 bis 10 000 und insbesondere 2000 bis 5000 bevorzugt. Der Anteil des sauren Dispergiermittels kann 1 bis 40 und vorzugsweise 5 bis 25 Gew.-% - bezogen auf das Polyolefinwachs - betragen. Die wäßrigen Dispersionen weisen in der Regel einen Feststoffgehalt von 1 bis 40 und vorzugsweise 2 bis 25 Gew.-% auf.The use of high-density polyethylene wax with a medium molecular weight weight in the range of 500 to 10,000 and in particular 2000 up to 5000 preferred. The proportion of the acidic dispersant can 1 to 40 and preferably 5 to 25 wt .-% - based on the polyolefin wax - amount. The aqueous dispersions usually have a solids content of 1 to 40 and preferably 2 to 25% by weight.

AlkalihydroxideAlkali hydroxides

Die Neutralisation der sauren Dispergiermittel erfolgt vor­ zugsweise unter Zugabe von wäßrigen Alkalihydroxidlösungen. Typische Beispiele sind wäßrige 5- bis 25gew.-%ige Lösungen von Natrium- und vorzugsweise Kaliumhydroxid.The acidic dispersants are neutralized before preferably with the addition of aqueous alkali hydroxide solutions. Typical examples are aqueous 5 to 25% by weight solutions of sodium and preferably potassium hydroxide.

NeutralisationNeutralization

Die gemeinsame Neutralisation von saurem Dispergiermittel und Polyolefinwachs findet oberhalb des Schmelzpunktes des Wach­ ses, vorzugsweise bei Temperaturen im Bereich von 120 bis 180 und insbesondere 150 bis 160°C statt. Der Druck kann 1 bis 10 bar betragen. Vorzugsweise erfolgt die Neutralisation der Dispersion unter einem autogenen Druck von 2 bis 6 bar. An­ schließend wird die Dispersion auf Raumtemperatur abgekühlt.The joint neutralization of acidic dispersant and Polyolefin wax takes place above the melting point of the wax ses, preferably at temperatures in the range of 120 to 180 and in particular 150 to 160 ° C instead. The pressure can be 1 to 10  bar. The neutralization preferably takes place Dispersion under an autogenous pressure of 2 to 6 bar. On finally the dispersion is cooled to room temperature.

Co-DispergatorenCo-dispersants

In einer bevorzugten Ausführungsform der Erfindung wird die Neutralisation in Gegenwart eines Co-Dispergators durchge­ führt. Hierfür kommen in erster Linie nichtionische Tenside der Formel (II) in Betracht,In a preferred embodiment of the invention, the Neutralization in the presence of a co-dispersant leads. Primarily non-ionic surfactants are used for this of formula (II) into consideration

R³O(CH₂CH₂O)mH (II)R³O (CH₂CH₂O) m H (II)

in der R³ für einen Alkyl- und/oder Alkenylrest mit 6 bis 22 Kohlenstoffatomen oder einen Nonylphenylrest und m für Zahlen von 1 bis 20 steht.in the R³ for an alkyl and / or alkenyl radical with 6 to 22nd Carbon atoms or a nonylphenyl radical and m for numbers from 1 to 20.

Typische Beispiele sind Anlagerungsprodukte von durchschnitt­ lich 1 bis 20 und vorzugsweise 7 bis 15 Mol Ethylenoxid an Fettalkohole mit 12 bis 18 Kohlenstoffatome oder Nonylphenol wie beispielsweise C12/14-Kokosfettalkohol-9EO-Addukt, C12/18-Kokosfettalkohol-7EO-Addukt, C16/18-Talgalkohol-14EO- Addukt oder Nonylphenol-10EO-Addukt.Typical examples are addition products of on average 1 to 20 and preferably 7 to 15 moles of ethylene oxide onto fatty alcohols with 12 to 18 carbon atoms or nonylphenol such as, for example, C 12/14 coconut fatty alcohol 9EO adduct, C 12/18 coconut fatty alcohol 7EO adduct, C 16/18 tallow alcohol-14EO adduct or nonylphenol-10EO adduct.

Gewerbliche AnwendbarkeitIndustrial applicability

Die nach dem erfindungsgemäßen Verfahren erhältlichen wäßri­ gen Polyolefinwachs-Dispersionen zeichnen sich durch eine besonders feine Verteilung der Teilchen sowie eine verbesser­ te Lagerstabilität aus und eignen sich beispielsweise zum Beschichten von festen Oberflächen und textilen Flächenge­ bilden, wie etwa Fasern, Garnen und Textilien, sowie als Entschäumer.The obtainable by the process according to the invention polyolefin wax dispersions are characterized by a particularly fine distribution of the particles and an improvement  te storage stability and are suitable for Coating of solid surfaces and textile surfaces form, such as fibers, yarns and textiles, as well as Defoamer.

Die folgenden Beispiele sollen den Gegenstand der Erfindung näher erläutern, ohne ihn darauf einzuschränken.The following examples are intended to be the subject of the invention explain in more detail without restricting it.

BeispieleExamples I. Eingesetzte StoffeI. Substances used

  • A1) Polyethylenwachs, Festpunkt: 127°C, mittlere Molmasse: 5000A1) polyethylene wax, fixed point: 127 ° C, average molecular weight: 5000
  • B1) Stearylphosphat, Veresterungsgrad 1,5B1) Stearyl phosphate, degree of esterification 1.5
  • B2) Stearylphosphat-Natriumsalz, Veresterungsgrad 1,5B2) Stearyl phosphate sodium salt, degree of esterification 1.5
  • B3) Dodecylbenzolsulfonat-KaliumsalzB3) Dodecylbenzenesulfonate potassium salt
  • C1) C12/18-Kokosfettalkohol-9EO-Addukt, FORYL® 100, Henkel KGaAC1) C 12/18 coconut fatty alcohol 9EO adduct, FORYL® 100, Henkel KGaA
II. Herstellung der DispersionenII. Preparation of the dispersions Beispiel 1example 1

In 500 ml einer 5gew.-%igen Lösung des sauren Dispergiermit­ tels B1 wurden 155 g Polyethylenwachs A1 eingerührt. Der Feststoffgehalt der resultierenden Dispersion betrug ca. 27 Gew.-%, der Anteil des Dispergiermittels - bezogen auf das Wachs - 16 Gew.-%. Die Dispersion wurde mit 25gew.-%iger Kaliumhydroxidlösung neutralisiert und danach 30 min auf 150°C erhitzt. Anschließend ließ man auf Raumtemperatur ab­ kühlen. Die Dispersion wurde 3 Wochen bei 20°C gelagert und Feinteiligkeit bzw. Stabilität optisch beurteilt. Hierbei bedeuten:In 500 ml of a 5% by weight solution of the acidic dispersant 155 g of polyethylene wax A1 were stirred in using B1. Of the The solids content of the resulting dispersion was approximately 27 % By weight, the proportion of the dispersant - based on the Wax - 16% by weight. The dispersion was 25 wt .-% Potassium hydroxide solution neutralized and then 30 min 150 ° C heated. The mixture was then let down to room temperature cool. The dispersion was stored at 20 ° C. for 3 weeks and Fine grading or stability assessed optically. Here mean:

Feinteiligkeit:
+++ = beinahe klare Dispersion
  ++ = leicht milchige Dispersion
    + = milchig-trübe Dispersion
Fine division:
+++ = almost clear dispersion
++ = slightly milky dispersion
+ = milky cloudy dispersion

Stabilität:
+++ = kein Bodensatz
  ++ = sehr geringer Bodensatz
    + = geringer Bodensatz
    - = deutlicher Bodensatz.
Stability:
+++ = no sediment
++ = very low sediment
+ = low sediment
- = significant sediment.

Die Ergebnisse sind in Tabelle 1 zusammengefaßt.The results are summarized in Table 1.

Beispiel 2Example 2

Beispiel 1 wurde wiederholt, die Neutralisation jedoch in ei­ nem Autoklaven durchgeführt, wobei sich bei 150°C ein autoge­ ner Druck von 6 bar einstellte. Die Ergebnisse sind in Tabel­ le 1 zusammengefaßt.Example 1 was repeated, but the neutralization in egg nem autoclave performed, with an autogenous at 150 ° C. set a pressure of 6 bar. The results are in table le 1 summarized.

Beispiel 3Example 3

Beispiel 1 wurde wiederholt, jedoch die Neutralisation in Gegenwart von 5 Gew.-% - bezogen auf die Dispersion - des Co- Dispergators C1 durchgeführt. Die Ergebnisse sind in Tabelle 1 zusammengefaßt. Example 1 was repeated, but the neutralization in Presence of 5% by weight, based on the dispersion, of the co- Dispergators C1 performed. The results are in the table 1 summarized.  

Beispiel 4Example 4

Beispiel 2 wurde wiederholt, jedoch die Neutralisation in Gegenwart von 5 Gew.-% - bezogen auf die Dispersion - des Co- Dispergators C1 durchgeführt. Die Ergebnisse sind in Tabelle 1 zusammengefaßt.Example 2 was repeated, but the neutralization in Presence of 5% by weight, based on the dispersion, of the co- Dispergators C1 performed. The results are in the table 1 summarized.

Vergleichsbeispiel V1Comparative Example V1

Beispiel 1 wurde unter Einsatz des neutralisierten Disper­ giermittels B2 wiederholt und auf eine nachträgliche Neutra­ lisation verzichtet. Die Ergebnisse sind in Tabelle 1 zusam­ mengefaßt.Example 1 was made using the neutralized Disper greed B2 repeated and on a subsequent neutra lization waived. The results are summarized in Table 1 quantified.

Vergleichsbeispiel V2Comparative example V2

Beispiel 1 wurde unter Einsatz des neutralisierten Disper­ giermittels B3 wiederholt und auf eine nachträgliche Neutra­ lisation verzichtet. Die Ergebnisse sind in Tabelle 1 zusam­ mengefaßt. Example 1 was made using the neutralized Disper greed B3 repeated and to a subsequent neutra lization waived. The results are summarized in Table 1 quantified.  

Tabelle 1 Table 1

Ergebnisse der Dispergierversuche Results of the dispersion tests

Claims (8)

1. Verfahren zur Herstellung stabilisierter wäßriger Poly­ olefinwachs-Dispersionen, dadurch gekennzeichnet, daß man
  • (a) eine wäßrige Lösung aus einem sauren tensidischen Dispergiermittel und feinverteiltem Polyolefin­ wachs herstellt und
  • (b) die Dispersion anschließend durch Zugabe von Alka­ lihydroxiden oberhalb des Schmelzpunktes des Wachses neutralisiert.
1. A process for the preparation of stabilized aqueous poly olefin wax dispersions, characterized in that
  • (a) produces an aqueous solution of an acidic surfactant dispersant and finely divided polyolefin wax and
  • (b) the dispersion is then neutralized by adding alkali hydroxides above the melting point of the wax.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man als Dispergiermittel Alkyl(ether)phosphate der For­ mel (I) einsetzt, in der R¹ für einen linearen oder verzweigten Alkylrest mit 6 bis 22 Kohlenstoffatomen, R² für Wasserstoff oder eine Gruppe R¹(OCH₂CH₂)n und n für 0 oder Zahlen von 1 bis 10 steht. 2. The method according to claim 1, characterized in that alkyl (ether) phosphates of formula (I) are used as dispersants, in which R¹ is a linear or branched alkyl radical having 6 to 22 carbon atoms, R² is hydrogen or a group R¹ (OCH₂CH₂) n and n is 0 or numbers from 1 to 10. 3. Verfahren nach den Ansprüchen 1 und 2, dadurch gekenn­ zeichnet, daß man als Polyolefinwachs high-density Poly­ ethylenwachs mit einem mittleren Molekulargewicht im Bereich von 500 bis 10 000 einsetzt.3. The method according to claims 1 and 2, characterized records that as a polyolefin wax high-density poly ethylene wax with an average molecular weight in Range from 500 to 10,000. 4. Verfahren nach den Ansprüchen 1 bis 3, dadurch gekenn­ zeichnet, daß man 1 bis 40 Gew.-% des sauren Disper­ giermittels - bezogen auf das Polyolefinwachs - ein­ setzt.4. The method according to claims 1 to 3, characterized records that 1 to 40 wt .-% of the acidic Disper based on the polyolefin wax puts. 5. Verfahren nach den Ansprüchen 1 bis 4, dadurch gekenn­ zeichnet, daß man wäßrige Dispersionen mit einem Fest­ stoffgehalt von 1 bis 40 Gew.-% einsetzt.5. The method according to claims 1 to 4, characterized records that aqueous dispersions with a solid substance content of 1 to 40 wt .-% is used. 6. Verfahren nach den Ansprüchen 1 bis 5, dadurch gekenn­ zeichnet, daß man als Alkalihydroxid Kaliumhydroxid ein­ setzt.6. The method according to claims 1 to 5, characterized records that one as an alkali hydroxide potassium hydroxide puts. 7. Verfahren nach den Ansprüchen 1 bis 6, dadurch gekenn­ zeichnet, daß man die Neutralisation bei Temperaturen im Bereich von 120 bis 180°C bei Drücken von 1 bis 10 bar durchführt.7. The method according to claims 1 to 6, characterized records that the neutralization at temperatures in Range from 120 to 180 ° C at pressures from 1 to 10 bar carries out. 8. Verfahren nach den Ansprüchen 1 bis 7, dadurch gekenn­ zeichnet, daß man die Neutralisation in Gegenwart von nichtionischen Tensiden der Formel (II) durchführt, R³O(CH₂CH₂O)mH (II)in der R³ für einen Alkyl- und/oder Alkenylrest mit 6 bis 22 Kohlenstoffatomen oder einen Nonylphenylrest und m für Zahlen von 1 bis 20 steht.8. Process according to claims 1 to 7, characterized in that the neutralization is carried out in the presence of nonionic surfactants of the formula (II), R³O (CH₂CH₂O) m H (II) in the R³ for an alkyl and / or alkenyl radical with 6 to 22 carbon atoms or a nonylphenyl radical and m represents numbers from 1 to 20.
DE4435404A 1994-10-04 1994-10-04 Process for the preparation of stabilized aqueous polyolefin wax dispersions Withdrawn DE4435404A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE4435404A DE4435404A1 (en) 1994-10-04 1994-10-04 Process for the preparation of stabilized aqueous polyolefin wax dispersions
PCT/EP1995/003796 WO1996010599A1 (en) 1994-10-04 1995-09-25 Process for producing stabilised aqueous polyolefine wax dispersions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4435404A DE4435404A1 (en) 1994-10-04 1994-10-04 Process for the preparation of stabilized aqueous polyolefin wax dispersions

Publications (1)

Publication Number Publication Date
DE4435404A1 true DE4435404A1 (en) 1996-04-11

Family

ID=6529898

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4435404A Withdrawn DE4435404A1 (en) 1994-10-04 1994-10-04 Process for the preparation of stabilized aqueous polyolefin wax dispersions

Country Status (2)

Country Link
DE (1) DE4435404A1 (en)
WO (1) WO1996010599A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2784110A1 (en) * 1998-10-06 2000-04-07 Atochem Elf Sa PROCESS FOR THE POLYMERIZATION OF OLEFINS IN THE PRESENCE OF WATER
FR2790978A1 (en) * 1999-03-19 2000-09-22 Atochem Elf Sa PROCESS FOR POLYMERIZING OLEFINS IN THE PRESENCE OF NICKEL COMPLEXES AND CORRESPONDING CATALYTIC SYSTEM
EP1510620A3 (en) * 2003-08-07 2006-01-04 Takemoto Yushi Kabushiki Kaisha Low concentration aqueous solution of an agent for processing synthetic fibers, method of producing same and method of processing synthetic fibers
EP3010873A4 (en) * 2013-06-18 2017-02-22 EURENCO Bofors AB Phlegmatisation of an explosive in an aqueous suspension

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8679726B2 (en) 2012-05-29 2014-03-25 Eastman Kodak Company Negative-working lithographic printing plate precursors
US9063423B2 (en) 2013-02-28 2015-06-23 Eastman Kodak Company Lithographic printing plate precursors and use
US9201302B2 (en) 2013-10-03 2015-12-01 Eastman Kodak Company Negative-working lithographic printing plate precursor
US11633948B2 (en) 2020-01-22 2023-04-25 Eastman Kodak Company Method for making lithographic printing plates

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3745135A (en) * 1970-08-17 1973-07-10 Du Pont Polymerized ethylenically unsaturated fatty acids as emulsifiers for aqueous dispersions
US4129507A (en) * 1978-01-18 1978-12-12 Allied Chemical Corporation Spin finish for polyamide yarn
US4357185A (en) * 1981-05-20 1982-11-02 The United States Of America As Represented By The Secretary Of The Navy Process for coating crystalline explosives with polyethylene wax
US5007961A (en) * 1988-05-24 1991-04-16 Eastman Kodak Company Aqueous additive systems, methods and polymeric particles
US4767646A (en) * 1985-10-24 1988-08-30 Allied Corporation Wet abrasion resistant yarn and cordage

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2784110A1 (en) * 1998-10-06 2000-04-07 Atochem Elf Sa PROCESS FOR THE POLYMERIZATION OF OLEFINS IN THE PRESENCE OF WATER
WO2000020464A1 (en) * 1998-10-06 2000-04-13 Atofina Method for polymerising olefins in the presence of water
US6737483B1 (en) 1998-10-06 2004-05-18 Atanas Tomov Method for polymerising olefins in the presence of water
FR2790978A1 (en) * 1999-03-19 2000-09-22 Atochem Elf Sa PROCESS FOR POLYMERIZING OLEFINS IN THE PRESENCE OF NICKEL COMPLEXES AND CORRESPONDING CATALYTIC SYSTEM
EP1510620A3 (en) * 2003-08-07 2006-01-04 Takemoto Yushi Kabushiki Kaisha Low concentration aqueous solution of an agent for processing synthetic fibers, method of producing same and method of processing synthetic fibers
EP3010873A4 (en) * 2013-06-18 2017-02-22 EURENCO Bofors AB Phlegmatisation of an explosive in an aqueous suspension

Also Published As

Publication number Publication date
WO1996010599A1 (en) 1996-04-11

Similar Documents

Publication Publication Date Title
DE602004008517T2 (en) COMPOSITION CONTAINING ALCOHOL ALKOXYLATES AND THEIR USE
DE19736906A1 (en) Process for the preparation of sulfated fatty acid alkylene glycol esters
DE2008777A1 (en)
DE3918252A1 (en) FETTALKYLSULFATES AND FETTALKYL POLYALKYLENE GLYCOLETHERSULFATES, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE
EP0613457B1 (en) Esters of fatty acids with ethoxylated polyols
EP1131394A1 (en) Gel-type cleaning agent for w.c. pans
DE19621843A1 (en) Block-shaped iso-tridecanol alkoxylates as low-foam or foam-suppressing surfactants
DE4435404A1 (en) Process for the preparation of stabilized aqueous polyolefin wax dispersions
EP1229104B1 (en) Rinsing and cleaning agent
EP0805846B1 (en) Liquid detergent
CH650764A5 (en) ALKYL-polyoxyalkylene CARBOXYLATE.
DE3933860A1 (en) METHOD FOR PRODUCING ALKYL-POLYETHOXYETHERSULFAT
DE69737085T2 (en) MIXTURES OF ALIPHATIC SULPHONATE, THEIR PROPERTIES AND APPLICATIONS
EP1229103B1 (en) Mixed hydroxyethers with high ethoxylation degree
EP0758374B1 (en) Heterogeneous surface-active granulates
DE4332373C2 (en) Anhydrous detergent mixtures
WO1993012215A1 (en) Method of producing triglycerides with hydrophilic properties
EP1950280A1 (en) Clear aqueous washing and cleaning agent
DE19635555C2 (en) Aqueous hand dishwashing liquid
DE3914060A1 (en) WETTING AGENTS FOR USE IN AQUEOUS, ALKALINE TREATMENT AGENTS FOR YARNS OR TEXTILE AREAS
EP0378049B1 (en) Alkali-fast silicon oil-free defoamer
DE4300321A1 (en) Prepn. of oligo:glycerol ether sulphate from fatty alcohol oligo:glycerol ether
DE19623571C2 (en) Thickener for aqueous hydrogen peroxide solutions
DE10003752A1 (en) Detergent and cleaning agents
WO1993020171A1 (en) Low foaming aqueous detergent mixtures

Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee