EP4308363A1 - Procédé de production d'une composition stabilisante pour un polymère, et composition stabilisante produite à l'aide dudit procédé - Google Patents

Procédé de production d'une composition stabilisante pour un polymère, et composition stabilisante produite à l'aide dudit procédé

Info

Publication number
EP4308363A1
EP4308363A1 EP22701286.1A EP22701286A EP4308363A1 EP 4308363 A1 EP4308363 A1 EP 4308363A1 EP 22701286 A EP22701286 A EP 22701286A EP 4308363 A1 EP4308363 A1 EP 4308363A1
Authority
EP
European Patent Office
Prior art keywords
extruder
stabilizer composition
planetary roller
impact modifier
modules
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.)
Pending
Application number
EP22701286.1A
Other languages
German (de)
English (en)
Inventor
Georg Andreas MEINHARDT
Karl SCHULLER
Michael Hecher
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.)
Akdeniz Chemson Additives Ag
Original Assignee
Akdeniz Chemson Additives Ag
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 Akdeniz Chemson Additives Ag filed Critical Akdeniz Chemson Additives Ag
Publication of EP4308363A1 publication Critical patent/EP4308363A1/fr
Pending legal-status Critical Current

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Classifications

    • 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
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/345—Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/485—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws with three or more shafts provided with screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29B7/82—Heating or cooling
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29B9/065—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion under-water, e.g. underwater pelletizers
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    • B29B9/00—Making granules
    • B29B9/12—Making granules characterised by structure or composition
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/435—Sub-screws
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    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/005—Stabilisers against oxidation, heat, light, ozone
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/487—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws with consecutive casings or screws, e.g. for feeding, discharging, mixing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
    • F17C2223/042—Localisation of the removal point
    • F17C2223/043—Localisation of the removal point in the gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
    • F17C2223/042—Localisation of the removal point
    • F17C2223/046—Localisation of the removal point in the liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F17C2227/0309—Heat exchange with the fluid by heating using another fluid
    • F17C2227/0311—Air heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F17C2227/0309—Heat exchange with the fluid by heating using another fluid
    • F17C2227/0316—Water heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0388—Localisation of heat exchange separate
    • F17C2227/0393—Localisation of heat exchange separate using a vaporiser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F17C2250/032—Control means using computers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0439—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/018—Adapting dimensions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F17C2265/066—Fluid distribution for feeding engines for propulsion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles

Definitions

  • the invention relates to a process for producing a stabilizer composition for a polymer, in particular a halogen-containing polymer such as polyvinyl chloride, with components for forming the stabilizer composition being mixed in an extruder and continuously discharged from the extruder.
  • a stabilizer composition for a polymer in particular a halogen-containing polymer such as polyvinyl chloride
  • the invention relates to a stabilizer composition.
  • the invention relates to the use of a planetary roller extruder.
  • polyvinyl chloride PVC
  • PVC polyvinyl chloride
  • many polymeric plastics or polymers such as polyvinyl chloride (PVC) have a diverse range of properties and can tend to thermal decomposition both during or during production and during further processing, for example by extrusion, calendering or injection molding.
  • PVC polyvinyl chloride
  • such polymers can also be subject to degradation after processing into a profile or the like, for example due to temperature influences or UV radiation. It is therefore necessary, for the purposes of processing and later use, to mix in processing aids and modifiers or additives in general, which are tailored to the processing and the later intended use.
  • PVC in particular can be provided as a dry blend for further processing into profiles such as window sills or other products.
  • a dry blend includes the required additives, which can also be admixed to the dry blend in the form of a stabilizer composition with a number of additives.
  • a stabilizer composition already includes all the necessary components for such purposes, so that no additive or other auxiliary material has to be added to the PVC in a separate step during processing.
  • no additive or other auxiliary material has to be added to the PVC in a separate step during processing.
  • different additives have different properties, which make it possible to process them satisfactorily impede or prevent a stabilizer composition that is comprehensive or final in terms of components.
  • impact modifiers particularly those based on acrylates such as polybutyl acrylate
  • acrylates are additives that are difficult to incorporate into stabilizer compositions.
  • the polybutyl acrylates can be added separately alongside other components when producing a dry blend, this requires a separate metering unit or at least a separate metering step.
  • acrylates are difficult to handle, due to the risk of dust explosions, because acrylates are very dusty in principle. It would therefore be expedient to add the acrylates, such as polybutyl acrylate, during the production of a stabilizer composition, so that the process step of separate addition and thus also the associated risk potential can be omitted in the later production of a dry blend.
  • the object of the invention is to specify a method with which the above problems are eliminated or at least reduced.
  • a further object consists in specifying the use of a planetary roller extruder.
  • an impact modifier is added to a process of the type mentioned at the outset.
  • This can be in particular be an acrylate which acts as an impact modifier, for example a polybutyl acrylate and/or another polymeric acrylate and/or an acrylate-containing copolymer.
  • An impact modifier is understood to mean any component which, when admixed to a final polymer, is able to ensure higher notched impact strength. As a rule, this is also a polymer.
  • Acrylate-containing impact modifiers in particular are to be understood as meaning polymers and copolymers which contain acrylic monomers and/or acrylic monomer derivatives and/or combinations of acrylic monomer and acrylic monomer derivatives as monomer building blocks.
  • acrylic monomer derivatives include, but are not limited to: acrylate compounds, which may also contain other elements such as nitrogen, sulfur or halogens, and/or functional groups such as aromatics, hydroxyls or cyano groups, for example methacrylate, methyl methacrylate, butyl acrylate, cyanoacrylate, acrylonitrile or hydroxyalkyl methacrylate.
  • the concept according to the invention consists in particular in the fact that an impact modifier such as an acrylate can be admixed during the production of a stabilizer composition in an extruder from which extrusion is carried out continuously, without the formation of specks or other disadvantageous demixing. Due to a dust-free, homogeneous and effective dispersion of the impact modifier and the associated good distribution of the same, a very good effect of the stabilizer composition is also achieved when the same is used later. Due to this improved effect, the amount of impact modifier required can also be minimized, which is a great advantage, especially with materials that are difficult to handle, such as acrylates.
  • the stabilizer composition when used for a dry blend or when a polymer such as PVC is processed, there is no need to add an impact modifier separately. Since processing in an extruder is unproblematic, the risk of a dust explosion is not just shifted to an upstream process step, but is actually completely eliminated.
  • an aggregate such as polybutyl acrylate can be incorporated as an impact modifier.
  • other impact modifiers which have similar problems, can also be added accordingly. It is particularly preferred that the impact modifier is admixed in the production of the additive system, viewed in the direction of extrusion, downstream in a last third of the extruder.
  • the impact modifier is only processed in a limited part of the extruder, namely the rear third, which is important in relation to a necessary but gentle shear stress. This is thereby minimized in some areas, but is sufficient for the impact modifier to be sufficiently incorporated.
  • an impact modifier such as a polybutyl acrylate or other acrylates is also prevented from gelling, which is a problem, for example, in the aforementioned melting process in the production of stabilizers.
  • the impact modifier is expedient for the impact modifier to be added in a last section.
  • the individual sections can be directly connected to one another, but represent separate units that can be adjusted separately with regard to temperature and shearing forces as well as other process parameters. For the reasons explained above, the impact modifier is then effectively prevented from gelling.
  • shear forces which decrease downstream.
  • the shearing forces can decrease continuously or also discretely. For a decrease in shear forces downstream, it is sufficient that at a single point the shear force decreases against the shear force at a preceding point upstream in the extruder.
  • the impact modifier is added as the last component.
  • the other components of the stabilizer composition are then already at least largely mixed and can then absorb the impact modifier, for which a maximum volume is then available for distribution within the rest of the stabilizer composition, which is advantageous in order to prevent dust formation in the extruder itself as far as possible.
  • the stabilizer composition After leaving the extruder, the stabilizer composition can be granulated.
  • the stabilizer composition can be granulated under water.
  • the stabilizer composition is granulated in air or with air or gas cooling, because the stabilizer composition can certainly also comprise one or more water-soluble components such as calcium acetylacetonate.
  • the stabilizer composition is in principle extruded from the extruder without pressure, it may be necessary for efficient granulation that the stabilizer composition is subjected to pressure downstream of the extruder for granulation.
  • the pressure can be generated with a corresponding pump, which applies pressure to the stabilizer composition to a perforated plate downstream of the extruder, so that the stabilizer composition under pressure hits the perforated plate, passes through it and is then cut to granulate form.
  • a planetary roller extruder is particularly preferably used as the extruder.
  • the shearing forces can be set in a targeted manner, which is beneficial in terms of effective incorporation of the impact modifier and prevention of gel formation.
  • a planetary roller extruder with a plurality of modules preferably at least three modules, in particular four to eight modules, can be used.
  • a planetary roller extruder with several modules has the advantage that the individual modules can be temperature-controlled separately, so that desired temperatures or temperature ranges can be set along the extruder depending on individual reactions or mixing processes and, if necessary, the release of water. In this case, shearing forces can also be varied and thus adjusted in the individual modules.
  • the number of modules is preferably kept in such a way that it is matched to the stabilizer composition to be produced or the components required for this. Basically, the components are extruded in a temperature range of about 80 °C to 240 °C.
  • the temperature is initially set to rise and then fall again downstream along the planetary roller extruder.
  • a higher temperature at the start of the planetary roller extruder or the extrusion process is required in order to partially melt the components and thus ensure intimate mixing.
  • the temperature is preferably set to be lower again. In this lowered area, the impact modifier is then also added as the last component, if necessary, so that this too is only subject to a low temperature load.
  • the shearing forces in the planetary roller extruder are set to decrease downstream, in particular by reducing the number of planetary rollers in the planetary roller extruder downstream. This can easily be achieved in that, for example, in a last module of the
  • Planetary roller extruder is provided with a smaller number of planetary spindles than in the modules before.
  • a planetary roller extruder is excellently suited for processing a stabilizer composition with an impact modifier.
  • Table 1 Temperature ranges of individual modules when processing a stabilizer composition in a planetary roller extruder
  • a stabilizer composition as produced by a method according to the invention, represents a further aspect of the invention.
  • a stabilizer composition according to the invention is characterized in particular by the fact that an impact modifier, which would only have to be added later during the production of a dry blend or a polymer product made of PVC or another polymer, is already a component of the stabilizer composition and is present homogeneously and in finely divided form can.
  • the stabilizer composition is preferably free of heavy metals except for small amounts of zinc or zinc salts.
  • the stabilizer composition according to the invention contains no lead, apart from any impurities resulting from the production process.
  • a stabilizer composition can in particular comprise the components described below, which are advantageously mixed or partially reacted before the impact modifier is produced. Unless otherwise stated, percentages (%) are based on weight percent.
  • the stabilizer composition according to the invention which is particularly free of heavy metals apart from a small proportion of zinc, can generally be supplemented with one or more additives, such as primary stabilizers, co-stabilizers, zeolites, antioxidants, fillers, plasticizers, dyes, pigments, antistatic agents, surface-active agents, foaming agents, (additional ) impact modifiers, UV stabilizers, lubricants, processing aids and/or the like.
  • additives such as primary stabilizers, co-stabilizers, zeolites, antioxidants, fillers, plasticizers, dyes, pigments, antistatic agents, surface-active agents, foaming agents, (additional ) impact modifiers, UV stabilizers, lubricants, processing aids and/or the like.
  • stabilizers in general are epoxides and epoxidized fatty acid esters, phosphites, thiophosphites and thiophosphates, polyols, 1,3-dicarbonyl compounds, mercaptocarboxylic acid esters, dihydropyridines, antioxidants, light stabilizers and UV absorbers, alkali and alkaline earth metal compounds, perchlorate salts, zeolites, hydrotalcites or dawsonites.
  • phosphites in particular as co-stabilizers for chlorine-containing polymers, for example trioctyl, tridecyl, tridodecyl, tritridecyl, tripentadecyl, trioleyl, tristearyl, triphenyl, tricresyl, trisnonylphenyl, tris-2, 4-t-butyl-phenyl or tricyclohexyl phosphite.
  • phosphites such as various mixed aryl-dialkyl or alkyldiaryl phosphites such as phenyldioctyl, phenyldidecyl, phenyldidodecyl, phenylditridecyl, phenylditetradecyl, phenyldipentadecyl, octyldiphenyl,
  • Decyldiphenyl, undecyldiphenyl, dodecyldiphenyl, tridecyldiphenyl, tetradecyldiphenyl, pentadecyldiphenyl, oleyldiphenyl, stearyldiphenyl and dodecylbis-2,4-di-t-butylphenyl phosphite may also find utility.
  • phosphites of various diols or polyols can also be used advantageously, for example tetraphenyldipropylene glycol diphosphite, polydipropylene glycol phenyl phosphite, tetramethylolcyclohexanol decyl diphosphite,
  • T etramethylolcyclohexanol-butoxyethoxy-ethyldiphosphit T etramethylolcyclohexanol-butoxyethoxy-ethyldiphosphit, T etramethylolcyclohexanol- nonylphenyldiphosphit, Bis-nonylphenyl-di-trimethylolpropandiphosphit, Bis-2-butoxyethyl- di-trimethylolpropandiphosphit, Trishydroxyethylisocyanurat-hexadecyltriphosphit, Didecylpentaerythritdiphosphit, Distearylpentaerythritdiphosphit, Bis-2,4-di-t- butylphenylpentaerythritdiphosphit.
  • the organic phosphites can be used in an amount of, for example, 0.01 to 10, suitably 0.05 to 5, in particular 0.1 to 3 parts by weight, based on 100 parts by weight of polymer (e.g. PVC).
  • polyols examples include pentaerythritol, dipentaerythritol, tripentaerythritol, bistrimethylolpropane, trimethylolethane, bistrimethylolethane, trimethylolpropane, sorbitol, maltitol, isomaltitol, lactitol, lycasine, mannitol, lactose, leucrose, tris-(hydroxyethyl)-isocyanurate, tetramethylolcyclohexanol (TMCH) , tetramethylolcyclopentanol, tetramethylolcyclopyranol, glycerol, diglycerol, polyglycerol, thiodiglycerol, 1-0-a-D-glycopyranosyl-D-mannitol dihydrate as well as polyvinyl alcohol and cyclodextrins.
  • TMCH t
  • the polyols can be used in an amount of, for example, 0.01 to 20, suitably 0.1 to 20, in particular 0.1 to 10 parts by weight, based on 100 parts by weight of polymer (e.g. PVC).
  • Exemplary compounds are trithiohexyl phosphite, trithiooctyl phosphite, trithiolauryl phosphite, trithiobenzyl phosphite, trithiophosphoric acid tris-[carboxy-i-octyloxy]-methyl ester, trithiophosphoric acid-S,S,S-tris-[carbo-i-octyloxy]-methyl ester, trithiophosphoric acid-S, S,S-tris-[carbo-2-ethylhexyloxy]-methyl ester, trithiophosphoric acid-S,S,S,-tris-1-[carbo-hexyloxy]-ethyl ester, trithiophosphoric acid- S,S,S-tris-1
  • 1,3-dicarbonyl compounds are acetylacetone, butanoylacetone, heptanoylacetone, stearoylacetone, palmitoylacetone, lauroylacetone, 7-tert-nonylthioheptanedione-2,4, benzoylacetone, dibenzoylmethane, lauroylbenzoylmethane, palmitoylbenzoylmethane, stearoylbenzoylmethane, isooctylbenzoylmethane, 5-hydroxycapronyl - benzoylmethane, tribenzoylmethane, bis(4-methylbenzoyl)methane, benzoyl-p-chlorobenzoylmethane, bis(2-hydroxybenzoyl)methane, 4-methoxybenzoylbenzoylmethane, bis(4-methoxybenzoyl)methane, 1-benzoyl-1-acet
  • mercaptocarboxylic acid esters which may be mentioned are: esters of thioglycolic acid, thiomalic acid, mercaptopropionic acid, mercaptobenzoic acids or thiolactic acid, such as are described, for example, in EP 0 365483 A1.
  • the mercaptocarboxylic acid esters also include corresponding polyol esters or their partial esters.
  • the corresponding esters can expediently be present at 0.01% to 10%, preferably at 0.1% to 5%, in particular at 0.1% to 1%, in a polymer which in particular contains chlorine.
  • a stabilizer composition according to the invention may additionally contain at least one epoxidized fatty acid ester.
  • Esters of fatty acids from natural sources such as soybean oil or rapeseed oil are preferred.
  • the epoxy compounds are used in amounts of, for example, from 0.1 part, based on 100 parts by weight of composition, advantageously from 0.1 to 30, in particular from 0.5 to 25, parts by weight.
  • epoxidized polybutadiene examples are epoxidized polybutadiene, epoxidized linseed oil, epoxidized fish oil, epoxidized tallow, methylbutyl or 2-ethylhexyl epoxy stearate, tris(epoxypropyl) isocyanurate, epoxidized castor oil, epoxidized sunflower oil, 3-phenoxy-1,2-epoxypropane, bisphenol A diglycidyl ether, vinylcyclohexene diepoxide and/or dicyclopentadiene diepoxide.
  • Bisphenol A and bisphenol F derivatives can also be used as epoxides.
  • monomeric dihydropyridines and/or polydihydropyridines can be provided as stabilizers, as disclosed in EP 0 796888 A2.
  • the (poly)dihydropyridines can be used in the polymer, in particular one containing chlorine, expediently in amounts of from 0.001 to 5, in particular from 0.005 to 1, parts by weight, based on the polymer with 100 parts by weight.
  • sterically hindered amines can be provided as stabilizers, as are also disclosed in EP 0796 888 A2.
  • a stabilizer composition according to the invention can contain alkali metal and alkaline earth metal compounds, in particular the carboxylates of the acids described above, but also corresponding oxides or hydroxides, carbonates or basic carbonates. Their mixtures with organic acids are also suitable. Examples are NaOH, KOH, CaO, Ca(OH) 2 , MgO, Mg(OH) 2 , CaCO 3 , MgCO ß , dolomite, zinc oxide, zinc carbonate and fatty acid Na, K, Ca, Mg or Zn salts .
  • Alkali is additionally preferred for a stabilizer according to the invention -, Alkaline earth and / or aluminum carboxylates used, for example sodium, potassium, calcium or aluminum stearates.
  • the stabilizer composition can, for example, comprise one or more perchlorate salts, for example those of the general formula M(Cl0 4 ) n , where M is Li, Na, K, Mg, Ca, Ba, Zn, Al, Ce or La.
  • the index n runs from 1 to 3, depending on the value of M, and is therefore 1, 2 or 3.
  • the perchlorate salts can be complexed with alcohols or ether alcohols.
  • the respective perchlorate can be used in various common dosage forms, e.g. B. as a salt or aqueous solution mounted on a carrier material such as PVC, calcium silicate, zeolite or hydrotalcite, or obtained by chemical reaction of hydrotalcite with perchloric acid.
  • phyllosilicates intercalated with perchlorate such as hydrotalcites
  • perchlorate such as hydrotalcites
  • exemplary compounds from this group are Alcamizer® products from Kisuma Chemicals.
  • the perchlorates can be used in an amount of, for example, 0.001 to 5, suitably 0.01 to 3, particularly preferably 0.01 to 2 parts by weight, based on 100 parts by weight of PVC or other polymer.
  • Co-stabilizers are compounds that can make a further stabilizing contribution to halogen-containing polymers.
  • Possible co-stabilizers can be selected from the group consisting of 1,3-diketone compounds, polyols, metal salts, natural or synthetic minerals such as hydrotalcite, hydrocalumite and zeolite, amino acid derivatives, organic esters of phosphorous acid, epoxy compounds.
  • 1,3-diketone compounds include, but are not limited to, dibenzoylmethane, stearoylbenzoylmethane, palmitoylbenzoylmethane, myristoylbenzoylmethane, lauroylbenzoylmethane, benzoylacetone, acetylacetone, tribenzoylmethane, diacetylacetobenzene, p-methoxystearoylacetophenone, acetoacetic acid ester and acetylacetone and their metal salts, especially those of lithium , sodium, potassium, calcium, magnesium, titanium and/or aluminum.
  • Co-stabilizers from the group of polyols include, but are not limited to, glycerol, pentaerythritol, di- and tri-pentaerythritol, trismethylolpropane (TMP), di-TMP, sorbitol, mannitol, malititol, saccharides, disaccharides (especially sucrose, 4- O-ß-D-galactopyranosyl-D-glucose, 4-0-alpha-D-glucopyranosyl-D-glucose, 6-0-(6-deoxy-alpha-L-mannopyranosyl)-D-glucose, alpha-D- Glucopyranosyl- alpha-D-glucopyranoside, 6-O-alpha-D-glucopyranosyl-D-glucose, 4-O-ß-D-glucopyranosyl-D-glucose, 2-0-ß-D-glu
  • antioxidants include, but are not limited to, alkylphenols, hydroxyphenylpropionates, hydroxybenzyl compounds, alkylidenebisphenols, thiobisphenols and aminophenols, especially e.g. B. 2,6-di-tert-butyl-4-methyl-phenol, 2,6-di-benzyl-4-methyl-phenol, stearyl-3-(3'-5'-di-tert-butyl).
  • metal salt co-stabilizers include, but are not limited to, hydroxides, oxides, carbonates, basic carbonates, and carboxylic acid salts of lithium, sodium, potassium, magnesium, calcium, aluminum, titanium, and the like, so long as (excluding zinc ) no heavy metal is used.
  • the metal salts may be salts of higher carboxylic acids, for example C6-C22 carboxylic acids, such as stearic, palmitic, myristic, lauric, oleic, oleic and ricinoleic acid.
  • natural and synthetic minerals include, but are not limited to, A3, A4, A5 zeolites, mordenite, erionite, faujasite X or Y type zeolites, and ZSM-5 zeolites, hydrotalcites (from Alcamizer® 1 and 4-type) and/or mixtures thereof.
  • Mesoporous materials in particular mesoporous silicates such as MCM-41 or SBA-15, can also represent components of a stabilizer composition according to the invention.
  • amino acid derivative co-stabilizers include, but are not limited to, glycine, alanine, lysine, tryptophan, acetylmethionine, pyrrolidone carboxylic acid, ⁇ -aminocrotonic acid, ⁇ -aminoacrylic acid, ⁇ -aminoadipic acid and the like, and the corresponding esters thereof.
  • the alcohol components of these esters can be monohydric alcohols, e.g.
  • methyl alcohol ethyl alcohol, propyl alcohol, i-propyl alcohol, butyl alcohol, a-ethylhexanol, octyl alcohol, i-octyl alcohol, lauryl alcohol, stearyl alcohol and the like, and polyols such as e.g. B. ethylene glycol, propylene glycol, 1,3-butanediol, 1,4-butanediol, glycerol, diglycerol, trismethylolpropane, pentaerythritol, dipentaerythritol, erythritol, sorbitol, mannitol and the like.
  • polyols such as e.g. B. ethylene glycol, propylene glycol, 1,3-butanediol, 1,4-butanediol, glycerol, diglycerol, trismethylolpropane, penta
  • phosphorous acid ester co-stabilizers include, but are not limited to, triaryl phosphites, such as e.g. B. triphenyl phosphite, tris (p-nonylphenyl) phosphite, alkylaryl phosphites, such as. B. monoalkyldiphenyl phosphites, z. B. diphenylisooctyl phosphite, diphenylisodecyl phosphite, and dialkyl monophenyl phosphites, such as. B.
  • triaryl phosphites such as e.g. B. triphenyl phosphite, tris (p-nonylphenyl) phosphite, alkylaryl phosphites, such as. B. monoalkyldiphenyl phosphites, z. B. diphenylisooctyl phos
  • phenyldiisooctyl phosphite or phenyl diisodecyl phosphite and trialkyl phosphites such as triisooctyl phosphite, tristearyl phosphite and the like.
  • Titanium dioxide essentially occurs naturally in three modifications: anatase, brookite and rutile. Both anatase and rutile have technical importance as pigments. The high refractive indices of 2.55 (anatase) and 2.75 (rutile) justify the brightening and hiding power and thus its use as a white pigment. With the appropriate dosage, rutile completely absorbs light below 400 nm, i.e. the entire UV range. The absorption of anatase is slightly shifted to shorter wavelengths. Brookite, on the other hand, does not show any photocatalytic activity and is therefore not preferred as another component of the stabilizer composition, but can be added as a filler.
  • the titanium dioxide advantageously has a rutile structure.
  • it can have both anatase and rutile structure. Combinations of these modifications are also possible.
  • the titanium dioxide can be used in accordance with the present invention in an amount of from about 0.01% to about 20% in the stabilizer composition. In another embodiment, the titanium dioxide can be used in an amount of from about 0.05% to about 10.0%, or from about 0.1% to about 5%, for example in an amount of about 4%.
  • the titanium dioxide should be finely divided and well dispersed.
  • Paraffin wax can be used as a lubricant, for example.
  • the paraffin wax can be a mixture of alkanes having the general molecular formula C n H 2n+ 2, where n is an integer from 20 to 100. The mixture can consist of straight-chain and odd-chain components as well as purely straight-chain components. Examples of commercially available and useful paraffin waxes include, but are not limited to, Fischer-Tropsch paraffins and related compounds.
  • Fillers can be provided as part of a stabilizer composition, but are not necessarily part of it.
  • the other co-stabilizers specified above can be used in identical amounts to the lubricants.
  • halogen-containing polymers with the stabilizer composition produced according to the invention the methods known in the prior art can be used. Examples of such methods include, but are not limited to, calendering, extrusion, injection molding, blow molding, and the like.
  • the composition according to the invention can also be admixed to a dry blend which is subsequently processed further to give a product which is at least close to the final dimensions.
  • Polymers can be made into products for different applications from the stabilizer composition according to the invention. For example, window profiles, pipes, floor coverings, roofing membranes, cables and foils can be produced with the appropriately stabilized polymers.
  • the polymers can also be foamed or foamed during processing.
  • the polymers can be used in materials for sports boats, rotor blades for wind turbines and in wagon construction, to name just a few examples. All of these applications are only examples, without the use of a stabilizer composition according to the invention being limited in any way.
  • the task of specifying the use of a planetary roller extruder is achieved if a planetary roller extruder is used to produce a stabilizer composition, shear forces being adjusted via a different number of planetary spindles in modules of the planetary roller extruder.
  • the extruder is a planetary roller extruder 1.
  • the planetary roller extruder has a first end 2 and a second end 3 opposite the first end 2 .
  • the planetary roller extruder 1 is composed of several modules 10, 11, 12, 13, 14, 15, 16. Each of these modules 10, 11, 12,
  • 13, 14, 15, 16 is each equipped with a circuit 10a, 11a, 12a, 13a, 14a, 15a, 16a with heating and/or cooling function.
  • a fluid in particular an oil, can be circulated in these circuits 10a, 11a, 12a, 13a, 14a, 15a, 16a in order to bring the individual modules 10, 11, 12, 13, 14, 15, 16 to a desired temperature or to be kept at this temperature during processing of a composition. If necessary, temperature changes can also be carried out.
  • a similar circuit p is provided for tempering a spindle 4 .
  • a spindle 4 of the planetary roller extruder 1 passes through the modules 10 , 11 , 12 , 13 , 14 , 15 , 16 .
  • the spindle 4 is the central drive element.
  • On the outside is the spindle 4 surrounded by a large number of planetary spindles, which cannot be seen, as is usual for a planetary roller extruder 1 .
  • the number of planetary spindles, which are arranged around the spindle 4 within the modules 10, 11, 12, 13, 14, 15, 16, can be varied for the individual modules 10, 11, 12, 13, 14, 15, 16 .
  • three, five or seven planetary spindles are provided in each module 10, 11, 12, 13, 14, 15, 16.
  • the planetary roller extruder 1 can be divided between individual modules 10, 11, 12, 13,
  • 14, 15, 16 include dispersing disks 8 and a degassing disk 9 downstream.
  • the spindle 4 is connected to a motor, not shown, which can cause the spindle 4 to rotate.
  • the spindle 4 runs at a freely selectable rotational speed, e.g. typically at rotational speeds between 200 rpm and 400 rpm with an internal diameter of the extruder of 100 mm to 120 mm and a central spindle diameter of 70 mm to 75 mm. Rotational speeds in the range from about 275 rpm to 375 rpm have proven particularly useful for the extruder dimensions given as an example.
  • Shearing forces in the modules 10, 11, 12, 13, 14, 15, 16 can be set via the rotational speed on the one hand and a number of planetary spindles, which are arranged around the spindle 4, which allows this, as will be explained below Otherwise, to create stabilizer compositions that cannot be produced or can only be produced with unsatisfactory results.
  • the planetary roller extruder 1 according to FIG. 1 also has a number of outlets 5 , 6 , 7 .
  • the outlets 5, 6, 7 do not necessarily have to be provided, but they are favorable and expedient when a stabilizer composition is processed which tends to form a lot of foam during processing. This is the case, for example, when stabilizer compositions containing fatty acids or derivatives are processed, with water being released during their reaction.
  • the outlets 5, 6, 7, which are arranged on an upper side of the housing of the individual modules 10, 11, 12, 13, 14, 15, 16 of the planetary roller extruder 1, are preferably rectangular in cross section.
  • outlets 5, 6, 7 can be cuboid or slit-shaped and extend upwards, through which controlled foaming with release of water is possible without the stabilizer composition to be processed escaping. Rather, there is only an escape of water while the processing stabilizer composition is propelled downstream towards the second end 3 by the spindle 4 in cooperation with the associated planetary spindles.
  • the planetary roller extruder 1 For the production of a stabilizer composition, the planetary roller extruder 1 must be fed in a suitable manner. Individual supply devices or feeders 21, 22, 23, 24, 25, 26 can be provided for this purpose. In the corresponding feeders 21, 22, 23, 24, 25, 26, the task of individual components for the production of the stabilizer composition takes place, with a supply in relation to the temperature of the modules 10, 11, 12, 13, 14, 15, 16, shear forces and degree of homogenization of the stabilizer components can be adjusted.
  • the individual modules 10, 11, 12, 13, 14, 15, 16 are temperature-controlled separately via the circuits 10a, 11a, 12a, 13a, 14a, 15a, 16a.
  • Table 2 below lists typical temperatures for individual modules when producing a stabilizer composition, the stabilizer composition being created with an impact modifier.
  • the temperature of the melt pump relates to a pump downstream of the extruder for pressurizing the discharged stabilizer composition.
  • the individual components for the stabilizer composition are first fed into one or more of the feeders 21, 22, 23, 24, 25, but not the impact modifier.
  • a corresponding composition with a premix according to Table 4 is given in Table 3 below.
  • the modules 10, 11, 12, 13, 14, but not the module 16, are each operated with five planetary spindles.
  • a typical speed of rotation of the spindle 4 is 300 rpm.
  • Module 16 and optionally module 15 are only operated with three planetary spindles.
  • a premix containing an impact modifier such as an acrylate, in particular polybutyl acrylate, is fed into the modules 15, 16 via the feeder 25 and/or the feeder 26.
  • the composition of the premix can be seen from Table 4 below.
  • Table 3 Exemplary composition for a stabilizer composition based on 1000 kg output (10.7 kg escaping residual water taken into account, all bases react with the acids)
  • Table 4 Composition of a premix (see Table 3) based on 1000 kg of stabilizer composition
  • Components 1 to 4 of the stabilizer composition can be fed into modules 10, 11, 12, in particular stearic acid. Hydroxystearic Acid, Zinc Oxide and Calcium Hydroxide. Downstream thereafter, magnesium hydroxide and acetic acid may be fed to react. In modules 12,13,
  • a conversion and mixing can then take place in 14 before the premix is supplied in module 15 and/or in module 16 .
  • the temperature control leads to the melting of the fatty acids.
  • the fatty acids react to form soaps or salts of the corresponding acids, the conversion of which is or will be completed by module 13.
  • the premix is fed into module 15, module 16 is used for temperature control in preparation for subsequent underwater granulation.
  • a stabilizer composition is discharged at the second end 3, which can be pressurized with a pump in the direction of a downstream perforated plate, so that the stabilizer composition passes through the perforated plate is pressed and cutting to length can take place.
  • a corresponding granulation can, for example, take place under water, but also in air. Is then obtained granular stabilizer, which
  • the resulting stabilizer product containing an impact modifier is designated P1.
  • all components 1 to 4 from Table 3 were reacted in a conventional batch process in a reactor and after the reaction to the corresponding soaps or salts was complete, components A to G were added to the melt in a suitable order and the comparative product V1 shaped as a tablet.
  • a dry blend is produced with PVC and additional filler and the respective dry blend is extruded to form profile samples. These profile samples were subjected to a notched bar impact test. The higher impact energy value of the sample prepared according to the invention shows the unexpected benefit.
  • Stabilizer composition which immediately has an impact modifier added, can be achieved through targeted adjustment of the shear forces.
  • a planetary roller extruder 1 it is possible to increase the shear forces during production via the rotational speed of the spindle 4 and a number of planetary spindles optimize that the best possible mixing or homogenization takes place for the individual components.
  • a smaller number of planetary spindles results in lower shearing forces, so that unwanted gelation or specks formation is prevented and a stabilizer composition of high quality can be obtained.

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Abstract

L'invention concerne un procédé de production d'une composition stabilisante pour un polymère, en particulier un polymère contenant un halogène tel que le polychlorure de vinyle, dans lequel des composants pour former la composition stabilisante sont mélangés dans une extrudeuse et déchargés en continu à partir de celle-ci. Selon l'invention, un agent antichoc est ajouté. L'invention divulgue également une composition stabilisante produite de manière correspondante et l'utilisation d'une extrudeuse planétaire (1) pour produire une composition stabilisante.
EP22701286.1A 2021-03-19 2022-01-24 Procédé de production d'une composition stabilisante pour un polymère, et composition stabilisante produite à l'aide dudit procédé Pending EP4308363A1 (fr)

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ATA50189/2021A AT524902A1 (de) 2021-03-19 2021-03-19 Verfahren zur Herstellung einer Stabilisatorzusammensetzung für ein Polymer und damit hergestellte Stabilisatorzusammensetzung
PCT/AT2022/060019 WO2022192928A1 (fr) 2021-03-19 2022-01-24 Procédé de production d'une composition stabilisante pour un polymère, et composition stabilisante produite à l'aide dudit procédé

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WO2024083304A1 (fr) * 2022-10-17 2024-04-25 Akdeniz Chemson Additives A.G. Procédé et dispositif pour la production d'une composition de stabilisant sous forme de granulés et composition de stabilisant ainsi produite

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DE2922378A1 (de) * 1979-06-01 1980-12-11 Neynaber Chemie Gmbh Verfahren zur herstellung einer nichtstaubenden, schwermetallhaltigen stabilisator/gleitmittel-kombination fuer halogenhaltige vinylpolymerisate
EP0365483B1 (fr) 1988-10-20 1993-12-29 Ciba-Geigy Ag Esters d'acide mercaptobenzoique utilisés comme stabilisateurs de polymérisats contenant du chlore
DE59712513D1 (de) 1996-03-22 2006-01-19 Wolfgang Wehner Stabilisatorkombination für chlorhaltige Polymere
DE19755561A1 (de) * 1997-12-13 1999-06-17 Basf Ag Verfahren zur Herstellung von staubarmen Stabilisatorsystemen zur thermischen Stabilisierung von PVC
MXPA01008705A (es) * 2000-09-03 2004-08-12 Rohm & Haas Sistemas de aditivos polimericos multiples: composiciones, procesos y productos derivados.
DE102004045296A1 (de) * 2004-09-16 2006-03-23 Röhm GmbH & Co. KG Verwendung von Polyalkyl (meth) acrylat-Perlpolymerisaten und Formmasse zur Herstellung von extrudierten Formteilen mit mattierter Oberfläche
CN105295367B (zh) * 2014-06-27 2019-03-08 上海凯赛生物技术研发中心有限公司 一种增韧聚酰胺树脂复合材料及其制备方法
WO2016058096A1 (fr) * 2014-10-15 2016-04-21 Terraverdae Bioworks Inc. Films biopolymères bioactifs et revêtements
AT519431B1 (de) * 2016-12-12 2020-04-15 Chemson Polymer Additive Ag Verfahren zur Herstellung einer Stabilisatorzusammensetzung und damit hergestellte Stabilisatorzusammensetzung
DE102017221072A1 (de) * 2017-11-24 2019-05-29 Tesa Se Verfahren zur Herstellung haftklebriger Reaktivklebebänder
WO2019166125A1 (fr) * 2018-02-28 2019-09-06 Entex Rust & Mitschke Gmbh Procédé pour la préparation et la transformation de polymères et de mélanges polymères dans une extrudeuse planétaire de structure modulaire

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CN117320866A (zh) 2023-12-29
US20240165866A1 (en) 2024-05-23
AU2022236929A1 (en) 2023-10-05

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