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WO2002070588A1 - Procede de fabrication de dispersions polymeres aqueuses - Google Patents

Procede de fabrication de dispersions polymeres aqueuses Download PDF

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Publication number
WO2002070588A1
WO2002070588A1 PCT/EP2002/002096 EP0202096W WO02070588A1 WO 2002070588 A1 WO2002070588 A1 WO 2002070588A1 EP 0202096 W EP0202096 W EP 0202096W WO 02070588 A1 WO02070588 A1 WO 02070588A1
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Prior art keywords
component
mixing
weight
polymers
phase
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PCT/EP2002/002096
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German (de)
English (en)
Inventor
Graham Edmund Mc Kee
Norbert Güntherberg
Armin Kurps
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BASF SE
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BASF SE
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/005—Processes for mixing polymers

Definitions

  • the invention relates to a method for producing aqueous polymer dispersions.
  • EP-A 0 246 729 describes a process for producing an aqueous polymer dispersion, in which a melt comprising (i) a hydrophobic thermoplastic polymer such as polyethylene, ethylene / vinyl acetate copolymer or an ethylene / propylene terpolymer, (ii) a water-insoluble thermoplastic polymer containing carboxyl groups or their precursors, such as polyethylene grafted with maleic anhydride, (iii) an anionic surfactant, (iv) water and optionally (v) a basic substance such as aqueous KOH, are mixed in an extruder.
  • a melt comprising (i) a hydrophobic thermoplastic polymer such as polyethylene, ethylene / vinyl acetate copolymer or an ethylene / propylene terpolymer, (ii) a water-insoluble thermoplastic polymer containing carboxyl groups or their precursors, such as polyethylene grafted with maleic anhydride, (iii
  • EP-A 0 972 794 describes a process for producing an aqueous dispersion, in which a melt of a thermoplastic polymer, a fatty acid, a fatty acid salt and / or a fatty acid ester is dispersed in water in the presence of a basic substance by kneading in an extruder.
  • the use of compatibility agents is not mentioned.
  • compatibilizers it is also known to use so-called compatibilizers to improve the miscibility of the polymers in the production of polymer blends from (miscible) polymers which are not sufficiently compatible with one another (miscible) in order to obtain homogeneous blends with good mechanical properties and surface properties.
  • compatibilizers made of polymers which are compatible with the first phase and contain reactive groups which react with the polymers of the second phase, covalent chemical bonds being formed to the polymers of the second phase.
  • a disadvantage of the known processes for producing polymer dispersions from two or more phases and the polymer dispersions obtained after them is that the morphology of the polymer particles is very coarse, so that in extreme cases two types of polymer particles are formed, namely particles from component A and particles from Component B. If polymer particles are formed from components A and B, the structure of the individual particles is very different. Particles that are largely formed from A are often present alongside particles that are largely formed from B.
  • the object of the invention is to provide an improved process for the preparation of polymer dispersions and improved polymer dispersions.
  • component D a) one or more polymers, which form a first phase, as component A, b) one or more materials, which form a second phase, as component B, c) one or more compatibilizers, which can be generated in situ, as a component C, d) optionally further polymers and customary auxiliaries, which can form further phases, as component D,
  • the aqueous polymer dispersions prepared by the process according to the invention contain polymer particles from at least two phases, which form the first phase.
  • the polymers (component A) are not or only partially miscible (compatible) with the materials forming the second phase (component B).
  • the other phases can also be formed from polymers which are partially compatible with components A and / or B.
  • Examples are a further phase made of polycarbonate in PSAN as the first or second phase, a further phase made of atactic polystyrene in syndiotactic polystyrene as the first or second phase and a further phase made of polycarbonate in polybutylene terephthalate as the first or second phase.
  • examples are furthermore rubbers which contain groups reactive with component A or B, for example a further phase composed of ethylene (co) polymers grafted with maleic anhydride, in polyamide as the first or second phase.
  • thermoplastic molding compositions preferably contain a maximum of two polymer phases.
  • the rubber belongs to the phase in which it is located.
  • first or second phase-forming polymers examples include polyamides, polyesters, polystyrene / acrylonitrile copolymers (PSAN), rubber-modified PSAN such as acrylonitrile / butadiene / styrene graft copolymers, acrylic acid esters / styrene / acrylonitrile
  • PSAN polystyrene / acrylonitrile copolymers
  • rubber-modified PSAN such as acrylonitrile / butadiene / styrene graft copolymers, acrylic acid esters / styrene / acrylonitrile
  • the compatibilizers can be those which bring about an improvement in adhesion through physical interactions, for example block copolymers each having polymer blocks compatible with one phase.
  • the compatibility agents are not regarded as a separate phase.
  • compatibilizers include compatibilizers which, by grafting polymers of component A or B with monomers containing reactive groups which react with the polymers of the other phase (B or A), and reacting the polymers of component A thus grafted or B with the polymers of the other phase.
  • reactive groups are preferably selected from anhydride, epoxy, hydroxy, amine, carboxyl, ester, oxazoline, silane and isocyanate groups.
  • the groups mentioned are present, for example, in maleic anhydride, glycidyl (meth) acrylate, hydroxy (meth) acrylate, t-
  • the compatibilizers can be generated in situ by reacting polymers forming the first and second phase with suitable monomers containing the reactive groups during the mixing of the components in the mixing unit.
  • suitable monomers containing the reactive groups for example, polystyrene, polyolefins or ethylene / propylene / diene rubbers can be grafted as component A or B when mixed with monomers containing maleic anhydride, glycidyl methacrylate or oxazoline groups, the compatibilizer being produced by reacting the grafted polymers with the polymers of the other phase.
  • the compatibilizers can contain reactive groups that react with both components.
  • the compatibilizer contains reactive groups which react only with one of the two components A or B, this component being referred to below as component B.
  • cl 0 to 99.9% by weight of styrene and / or styrene which is mono- to trisubstituted and / or substituted in the "position with the same or different C 1 -C 4 -alkyl
  • Monomers Cl, c2) 0 to 99.9% by weight of a primary and / or secondary alkyl ester of acrylic acid or methacrylic acid with 1 to 8 carbon atoms in the alkyl radical, acrylonitrile and / or methacrylonitrile as monomers C2, and c3) 0.1 up to 30% by weight of reactive monomers C3, selected from the group consisting of polymerizable carboxylic acids, tertiary esters of the same, epoxy group-containing monomers and anhydrides of polymerizable carboxylic acids, c4) 0 to 30% by weight of further copolymerizable monomers C4, the sum of components Cl to C4 results in 100% by weight.
  • Styrene or ° -methylstyrene are preferred as monomers Cl, but other substituted, in particular alkyl-substituted styrenes, such as p-methylstyrene, are also suitable in principle. Mixtures of different styrenes can also be used.
  • Suitable monomers C2 are acrylonitrile, methacrylonitrile, acrylic acid and methacrylic acid alkyl esters of primary or secondary alcohols with up to 8 carbon atoms. It is also possible, and sometimes advantageous, to use mixtures of these monomers. Preferred monomers C2 are acrylonitrile and methyl methacrylate.
  • Polymerizable carboxylic acids such as acrylic acid or methacrylic acid, tertiary esters thereof, such as tert-butyl acrylate, containing epoxy groups can be used as monomers
  • C3 Monomers, such as 1,2-epoxybut-3-ene, 4,5-epoxypentyl methacrylate, glycidyl acrylate, glycidyl methacrylate, allyl glycidyl ether, vinyl glycidyl ether and glycidyl itacidate, and anhydrides of polymerizable carboxylic acids, such as the anhydrides of unsaturated carboxylic acids with, for example, 1 to 10, carboxylic acids with 1 to 10, be used.
  • Preferred monomers C3 are t-butyl acrylate, (meth) acrylic acid, glycidyl methacrylate and maleic anhydride.
  • Monomers C4 can be, for example, ethylene or propylene.
  • Compatibility promoters having reactive groups can also be composed of olefins, dienes and monomers having reactive groups, such as glycidyl (meth) acrylate and maleic anhydride.
  • examples are polyethylene grafted with maleic anhydride, poplypropylene or polyisobutene or ethylene propylene / diene copolymer grafted with maleic anhydride.
  • component A is at least one polyamide, which can be rubber-modified
  • component B selected from the group consisting of
  • the compatibilizer is composed of cl) 20 to 95.9% by weight of styrene and / or the substituted styrenes mentioned above under b) as monomers Cl, c2) 4 to 40% by weight of a primary and / or secondary alkyl ester of Acrylic acid or methacrylic acid with 1 to 8 carbon atoms in the alkyl radical, acrylonitrile and / or methacrylonitrile as monomers C2 and c3) 0.1 to 30% by weight of reactive monomers C3, selected from polymerizable ones
  • the compatibilizer is particularly preferably composed of 40 to 82% by weight of Cl, 17.8 to 35% by weight of C2 and 0.2 to 15% by weight of C3, styrene and ° -methylstyrene as Cl and acrylonitrile as C2 and methyl methacrylate and as C3 t-butyl acrylate, maleic anhydride, (meth) acrylic acid and glycidyl methacrylate are particularly preferred.
  • polyamides as component A are polyhexamethylene adipic acid amide, polyhexamethylene azelaic acid amide, polyhexamethylene sebacic acid amide,
  • Polyamides based on terephthalic or isophthalic acid as the acid component and trimethylhexamethylene diamine or bis- (p-aminocyclohexyl) propane as the diamine component and polyamide base resins which have been prepared by copolymerizing two or more of the aforementioned polymers or their components are also suitable.
  • An example of this is a copolycondensate of adipic acid, isophthalic acid and hexamethylene diamine.
  • the polyamides (component A) can be rubber-modified.
  • they can be modified with rubbers containing groups that react with the polyamides.
  • groups that react with the polyamides examples are carboxyl groups, anhydride groups, epoxy groups or latent carboxyl groups as contained in t-butyl acrylate.
  • the reactive groups can be incorporated either by copolymerization or by grafting with appropriate monomers.
  • the rubbers are homo- or copolymers of ethylene, such as branched polyethylene, ethylene copolymers with acrylates and C 0 -C alpha-olefins such as propylene, butene and pentene.
  • Other rubbers are homo- or copolymers of isobutene and polyacrylates such as polybutyl acrylate and polyethylhexyl acrylate.
  • the polyacrylates are often produced by the emulsion polymerization process and consist of crosslinked particles which may be grafted with other monomers such as methyl methacrylate.
  • the reactive groups are mostly incorporated by copolymerization and are preferably present on the surface of the particles in order to react with the Lighten polyamide.
  • the rubber belongs to the phase in which it is present, here to the polyamide phase.
  • Component B can consist of rubber polymers or can be rubber-modified, that is, contain rubber polymers in a polymer matrix.
  • Component B can be rubber polymers.
  • the graft base onto which a mixture of styrene or substituted styrenes with acrylic acid esters, methacrylic acid esters, acrylonitrile and / or methacrylonitrile is grafted are the customary rubber-like polymers, such as polybutadiene, butadiene / acrylic ester copolymers based on butyl acrylate and / or Acrylic acid ethyl hexyl ester, polyacrylic acid alkyl ester, especially those with 1 to 8 carbon atoms in the alkyl radical, copolymers of butadiene, alkyl acrylates and vinyl alkyl ethers and copolymers of ethylene, alpha-olefins such as propylene and optionally a diene component, to name just a few.
  • the rubbers can be produced in emulsion, dispersion, microsuspension and mini-emulsion polymerization technology. During their manufacture, the rubber particles can be crosslinked by adding monomers with two or more double bonds. The grafting can take place in bulk, as in the case of HIPS, or in solution, as in the case of solution ABS (LABS).
  • Component B can be rubber-modified, ie it can contain rubber polymers in a polymer matrix.
  • examples in the case of polystyrene / acrylonitrile as the polymer matrix are rubber polymers such as polybutadiene, polybutyl acrylate, polyethylhexyl acrylate, ethylene homo- or copolymers which are grafted with, for example, styrene and acrylonitrile or methyl methacrylate.
  • the grafted rubbers can be produced in emulsion, suspension, solution or in bulk.
  • component A is a polyamide and component B is selected from PSAN, ABS, ASA and PMMA, and the compatibility agent is selected from
  • cl 0 to 99.9% by weight of styrene as monomer C 1, c2) 0 to 99.9% by weight of acrylonitrile as monomer C2, c3) 0.1 to 30% by weight of reactive monomer C3, selected from the group consisting of maleic anhydride, (meth) acrylic acid and t-butyl acrylate, and c4) 0 to 30% by weight of further polymerizable monomers C4, where the sum of components C1 to C4 is 100% by weight.
  • component A at least one polyamide
  • component B selected from PS, PPE and S-DPE, which can be rubber-modified, such as HIPS
  • c) is the compatibilizer from cl) 70 to 99.9% by weight Styrene as monomer Cl and c3) 0.1 to 30% by weight of reactive monomer C3, selected from maleic anhydride, (meth) acrylic acid, t-butyl acrylate and
  • component A at least one polyester
  • component B selected from PSAN, ABS, AES, ASA and PMMA, which can be rubber-modified
  • c) is the compatibilizer from c2) 70 to 99.9% by weight of monomers C2 selected from styrene, acrylonitrile and
  • Polyesters suitable as component A are, for example, polyethylene terephthalate, polypropylene terephthalate, polybutylene terephthalate and polylactide.
  • component A at least one polyamide
  • component B selected from PMMA and PSAN, which can be rubber-modified
  • c) is the compatibilizer from c2) 70 to 99.9% by weight of methyl methacrylate as monomer C2 and c3) 0.1 to 30% by weight of reactive monomer C3 selected from
  • Polyamides suitable as component A are the polyamides mentioned above.
  • component A at least one polyester
  • component B selected from PS, PPE and S-DPE, which can be rubber-modified
  • c) is the compatibilizer from cl) 70 to 99 wt .-% styrene as monomer Cl and c3) 0.1 to 30% by weight of maleic anhydride or glycidyl methacrylate as reactive monomer C3, c4) 0 to 30% by weight of further polymerizable monomers C4,
  • the polymers of component B can be rubber-modified.
  • examples are HIPS and PS containing styrene / butadiene two or multiblock copolymers, where the butadiene portion can be hydrogenated.
  • Polyesters suitable as component A are the polyesters mentioned above.
  • component A is at least one polyamide or at least one polyester
  • component B is an inorganic filler such as glass fibers, carbon black, wollastonite, calcium carbonate
  • the compatibilizer is a reactive coating made from an organic polymer containing groups reactive with polyamide, for example a polyurethane coating.
  • Polyamides or polyesters suitable as component A are the aforementioned polyamides or polyesters.
  • component A is a polymer containing reactive amino groups, for example a polysulfone with terminal amino groups
  • component B is selected from PSAN, ABS, AES, ASA, PS, HIPS, S-DPE and PPE, which can be rubber-modified
  • c ) is the compatibilizer from cl) 0 to 99.9% by weight of styrene as monomer Cl, c2) 0 to 99.9% by weight of acrylonitrile as monomer C2, c3) 0.1 to 30% by weight of glycidyl methacrylate and / or maleic anhydride as reactive monomer C3, and c4) 0 to 30% by weight of further polymerizable monomers C4,
  • component A polystyrene or PSAN
  • component B selected from polymers with COOH groups, such as polyamides, polycarbonates and polyesters
  • c) is the compatibilizer from cl) 0 to 99.9 wt .-% styrene as a monomer Cl, c2) 0 to 99.9% by weight of acrylonitrile, c3) 0.1 to 30% by weight of monomers containing oxazoline groups, such as 2-
  • component A is a polyolefin, such as polyethylene, polypropylene, polyisobutene or ethylene copolymer
  • component B is a polyester
  • component C is a polyolefin grafted with glycidyl methacrylate.
  • component A polystyrene
  • component B polybutadiene
  • component C a polystyrene polybutadiene two-block or multiblock copolymer
  • component A polystyrene
  • component B selected from ethylene / propylene / diene rubber, ethylene / propylene rubber and ethylene copolymers
  • component C is a polystyrene / polybutadiene two-block or multiblock copolymer with hydrogenated polybutadiene - Proportion of.
  • component A is a polyamide
  • component B is an ethylene / propylene / diene rubber
  • component C is an ethylene / propylene / diene rubber which is grafted with glycidyl methacrylate or maleic anhydride.
  • the proportion of component A is generally 1 to 98.9% by weight, preferably 5 to 94.9% by weight and particularly preferably 20 to 80% by weight
  • the proportion of component B in general 1 to 98.9 % By weight, preferably 5 to 94.9% by weight and particularly preferably 20 to 80% by weight, based on the sum of components A to C, which gives 100% by weight.
  • the compatibilizer C is generally present in amounts of 0.1 to 30% by weight, preferably 1 to 20% by weight, particularly preferably 2 to 15% by weight, based on the sum of components A to C.
  • the polymer particles contained in the polymer dispersions prepared according to the invention can contain further polymers and customary auxiliaries as component D, generally in amounts of 0.1 to 50% by weight, based on the sum of components A to D.
  • component D is present, components A to C are generally present in amounts of 50 to 99.9% by weight, based on the sum of components A to D, which gives 100% by weight.
  • Fillers, glass fibers, dyes, pigments, antistatic agents, antioxidants, flame retardants, impact modifiers and lubricants are just a few examples.
  • the compatibilizer C can be generated in situ in the presence of components A and or B by polymerization from the monomers.
  • Components A to C and optionally D are each present as a solid, melt or solution during mixing.
  • One, several or all components can be present as a solution or as a melt.
  • Inorganic materials are usually present as a solid.
  • the components are present as a solution in conventional nonpolar or polar organic solvents.
  • examples are hydrocarbons and hydrocarbon mixtures, benzene, toluene, esters, ketones, aldehydes, tetrahydrofuran, dimethylformamide, dimethyl sulfone and alcohols such as methanol, ethanol or propanol.
  • Components A to C and optionally D are preferably present as a melt during mixing.
  • Components A to C and optionally D can already be fed to the mixing unit as a melt or else as solids and melted during the mixing process.
  • Rotor-stator machines are suitable for emulsifying polymer solutions in water, such as Ultra-Turrax® with discontinuous operation or Dispax® with continuous
  • Suitable mixing units for dispersing melts are extruders and
  • Kneader As a mixing unit for dispersing solutions and melts in water Intensive mixers such as intensive mixing inline mixers, for example Supraton®, and fast-running single-shaft mixers with different mixing and delivery zones are particularly suitable. Combinations of these mixing units, for example an extruder with a downstream inline mixer, can also be used.
  • intensive mixing inline mixers for example Supraton®
  • fast-running single-shaft mixers with different mixing and delivery zones are particularly suitable.
  • Combinations of these mixing units for example an extruder with a downstream inline mixer, can also be used.
  • Suitable emulsifiers are anionic and nonionic surfactants or mixtures thereof.
  • suitable anionic surfactants are fatty acid salts such as potassium stearate and salts of montanic acid, alkyl sulfonates, alkyl sulfates and polycarboxylates such as ethylene / acrylic acid copolymers.
  • Suitable nonionic emulsifiers are, for example, polyvinyl alcohol, cellulose derivatives, vinyl pyrrolidone, polyethylene and polypropylene glycol ethers.
  • Suitable mixed anionic nonionic emulsifiers are sulfonated compounds containing polyethylene glycol and polypropylene glycol units.
  • the water is preferably added in portions to the other components in order to achieve a good mixing effect.
  • this can be done by adding water at different positions along the conveying direction of the extruder.
  • the solids content of the polymer dispersions prepared according to the invention is generally 1 to 85% by weight, preferably 5 to 80% by weight, particularly preferably 20 to 75% by weight.
  • the emulsifier content, based on the solids content of the dispersion, is generally 0.5 to 40% by weight, preferably 1 to 30% by weight and particularly preferably 1 to 25% by weight.
  • the dispersions are prepared by mixing the components in a co-rotating twin-screw extruder.
  • This has in particular a feed zone, a melting zone with kneading blocks and blocking elements, a plurality of injection and mixing zones provided with kneading and mixing elements and a discharge zone.
  • aqueous polymer dispersions prepared according to the invention predominantly contain, generally to more than 80% by weight, preferably to more than 90% by weight, polymer particles are formed from at least two phases, and in which one phase is dispersed in the other.
  • a mixture of 60 parts by weight of an EPDM rubber with an ethylene norbornene content of 5% by weight (Nordel IP 4725 from Dow - DuPont) and 40% by weight is first introduced into the feed zone of a twin-screw extruder rotating at 1000 rpm. Parts of polystyrene (polystyrene 168 N from BASF AG) dosed together with 7.5 parts by weight of montan wax and melted in the direction of conveyance during transport. In metering zone 1, 1.53% by weight of KOH, based on montan wax, as a 48% by weight solution in water and 0.72% by weight of potassium oleate, based on the rubber, are added as 10% by weight aqueous potassium oleate solution pumped in.
  • the solids content of the mixture at this point is approximately 95% by weight.
  • About 5 to 6% by weight of water is pumped into metering zone 2, so that dilution to a solids content of about 90% by weight is carried out here. So much water is finally pumped into metering zone 3 that a solids content of about 60% by weight results after discharge through a valve.
  • the total throughput is 34 kg / h, the pressure is 10 to 20 bar and the temperature 140 to 200 ° C.
  • Example 2 The procedure is as in Example 1, but a polymer mixture of 60 parts by weight of the EPDM rubber, 40 parts by weight of the polystyrene and 10 parts by weight of a styrene / butadiene / styrene triblock copolymer with a hydrogenated butadiene block (Kraton G 1650 by Shell) used as a compatibility agent.
  • Example 2 the polymer particles produced according to Example 2 have a significantly finer morphology than the polymer particles produced according to Example 1.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne un procédé de fabrication de dispersions polymères contenant des particules polymères d'au moins deux phases. Lesdites dispersions polymères sont constituées a) d'un ou plusieurs polymères formant une première phase, en tant que constituant A ; b) d'une ou plusieurs substances formant une deuxième phase, en tant que constituant B ; c) d'un ou plusieurs agents de compatibilité pouvant être produits in situ, en tant que constituant C ; et, d) éventuellement d'autres polymères ainsi que d'auxiliaires habituels pouvant former d'autres phases, en tant que constituant D. Le procédé selon l'invention consiste à mélanger avec de l'eau les constituants A, B, C et éventuellement D pouvant être respectivement présents en tant que solides, fusions ou solutions, dans une unité de mélange, éventuellement en présence d'un émulsifiant et/ou d'un colloïde protecteur.
PCT/EP2002/002096 2001-03-01 2002-02-27 Procede de fabrication de dispersions polymeres aqueuses Ceased WO2002070588A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001109846 DE10109846A1 (de) 2001-03-01 2001-03-01 Verfahren zur Herstellung wässriger Polymerdispersionen
DE10109846.4 2001-03-01

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WO2007087082A2 (fr) 2005-11-15 2007-08-02 Solutia Incorporated Procédés et dispositifs destinés à la production en continu de dispersions polymériques
WO2009062897A1 (fr) 2007-11-13 2009-05-22 Basf Se Procédé amélioré de production d'acide prussique par déshydratation catalytique de formamide gazeux
WO2011089209A2 (fr) 2010-01-22 2011-07-28 Basf Se Évaporateur à chambre unique et son utilisation pour la synthèse chimique
US9249029B2 (en) 2010-01-22 2016-02-02 Basf Se Single chamber vaporizer and use thereof in chemical synthesis

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DE102016015356B4 (de) 2016-12-22 2020-10-29 Institut für Kunststofftechnologie und -recycling e.V. Verwendung einer Zusammensetzung zur Schlagzähmodifizierung von Pulverlacken

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EP0972794A1 (fr) * 1998-07-16 2000-01-19 Mitsui Chemicals, Inc. Dispersion aqueuse, son procédé de préparation et son utilisation
EP1070739A2 (fr) * 1999-07-20 2001-01-24 Rohm And Haas Company Composites polymère-pigment

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US4970258A (en) * 1984-07-25 1990-11-13 Mitsui Petrochemical Industries, Inc. Aqueous dispersion and process for preparation thereof
EP0246729A2 (fr) * 1986-04-24 1987-11-25 Mitsui Petrochemical Industries, Ltd. Dispersion aqueuse et son procédé de préparation
EP0972794A1 (fr) * 1998-07-16 2000-01-19 Mitsui Chemicals, Inc. Dispersion aqueuse, son procédé de préparation et son utilisation
EP1070739A2 (fr) * 1999-07-20 2001-01-24 Rohm And Haas Company Composites polymère-pigment

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007087082A2 (fr) 2005-11-15 2007-08-02 Solutia Incorporated Procédés et dispositifs destinés à la production en continu de dispersions polymériques
WO2007087082A3 (fr) * 2005-11-15 2007-10-18 Solutia Inc Procédés et dispositifs destinés à la production en continu de dispersions polymériques
JP2009516028A (ja) * 2005-11-15 2009-04-16 ソリユテイア・インコーポレイテツド ポリマー分散液を連続製造する方法および装置
AU2006336522B2 (en) * 2005-11-15 2011-11-10 Solutia Inc. Methods and devices for continuous production of polymeric dispersions
RU2436821C2 (ru) * 2005-11-15 2011-12-20 Солютиа Инкорпорейтед Способы и устройства для непрерывного получения полимерных дисперсий
KR101271995B1 (ko) 2005-11-15 2013-06-07 솔루티아 인코포레이티드 폴리머 분산액의 연속 생산을 위한 방법 및 장치들
US8741986B2 (en) 2005-11-15 2014-06-03 Solutia Inc. Methods and devices for continuous production of polymeric dispersions
US8916627B2 (en) 2005-11-15 2014-12-23 Solutia Inc. Methods and devices for continuous production of polymeric dispersions
WO2009062897A1 (fr) 2007-11-13 2009-05-22 Basf Se Procédé amélioré de production d'acide prussique par déshydratation catalytique de formamide gazeux
WO2011089209A2 (fr) 2010-01-22 2011-07-28 Basf Se Évaporateur à chambre unique et son utilisation pour la synthèse chimique
US9249029B2 (en) 2010-01-22 2016-02-02 Basf Se Single chamber vaporizer and use thereof in chemical synthesis

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