EP2970614A1 - Mousse polymère et son utilisation dans des corps creux - Google Patents

Mousse polymère et son utilisation dans des corps creux

Info

Publication number
EP2970614A1
EP2970614A1 EP14709308.2A EP14709308A EP2970614A1 EP 2970614 A1 EP2970614 A1 EP 2970614A1 EP 14709308 A EP14709308 A EP 14709308A EP 2970614 A1 EP2970614 A1 EP 2970614A1
Authority
EP
European Patent Office
Prior art keywords
polymer
polymer foam
profile
blowing agent
nozzle
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Withdrawn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
EP14709308.2A
Other languages
German (de)
English (en)
Inventor
Herbert Ackermann
Andreas Brunner
Frank Hoefflin
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.)
Sika Technology AG
Original Assignee
Sika Technology 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 Sika Technology AG filed Critical Sika Technology AG
Priority to EP14709308.2A priority Critical patent/EP2970614A1/fr
Publication of EP2970614A1 publication Critical patent/EP2970614A1/fr
Withdrawn legal-status Critical Current

Links

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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/22—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/22—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/24—Making multilayered articles
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
    • 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
    • B29C48/03—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
    • B29C48/07—Flat, e.g. panels
    • 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
    • B29C48/03—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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the cylinders
    • B29C48/832—Heating
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/908—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014—Use of organic additives
    • C08J9/0028—Use of organic additives containing nitrogen
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0066—Use of inorganic compounding ingredients
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/141—Hydrocarbons
    • 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
    • B29C48/03—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
    • B29C48/06—Rod-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • B29K2025/04—Polymers of styrene
    • B29K2025/06—PS, i.e. polystyrene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2071/00—Use of polyethers, e.g. PEEK, i.e. polyether-etherketone or PEK, i.e. polyetherketone or derivatives thereof, as moulding material
    • B29K2071/12—PPO, i.e. polyphenylene oxide; PPE, i.e. polyphenylene ether
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0012—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular thermal properties
    • B29K2995/0015—Insulating
    • 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
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
    • C08J2201/03—Extrusion of the foamable blend
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/18—Binary blends of expanding agents
    • C08J2203/182—Binary blends of expanding agents of physical blowing agents, e.g. acetone and butane
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/20—Ternary blends of expanding agents
    • C08J2203/204—Ternary blends of expanding agents of chemical foaming agent and physical blowing agents
    • 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
    • C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2325/02—Homopolymers or copolymers of hydrocarbons
    • C08J2325/04—Homopolymers or copolymers of styrene
    • C08J2325/06—Polystyrene
    • 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
    • C08J2371/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
    • C08J2371/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
    • 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
    • C08J2371/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
    • C08J2371/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
    • C08J2371/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
    • C08J2371/12—Polyphenylene oxides
    • 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
    • C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2425/02—Homopolymers or copolymers of hydrocarbons
    • C08J2425/04—Homopolymers or copolymers of styrene
    • C08J2425/06—Polystyrene
    • 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
    • C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
    • C08J2471/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
    • C08J2471/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
    • C08J2471/12—Polyphenylene oxides

Definitions

  • the invention relates to a polymer foam, which in particular for
  • Foaming cavities and hollow bodies is suitable. Furthermore, the invention relates to a foam-filled hollow body, which with the
  • Polymer foam is filled and a coextrudate, wherein a component thereof is the polymer foam.
  • the invention also relates to a process for the preparation of a foam filled with the polymer foam hollow body.
  • Two-component polyurethane foams proposed filled profiles that are weldable and in which the voids of finished profiles are filled with polyurethane foam.
  • both polyurethane components are injected with the aid of long syringes under high pressure into the cavities of the profile and foamed.
  • the problem with these systems is that in the case of polyurethanes complete reaction of the isocyanate monomers is not easy to realize. This will affect the later
  • two-component polyurethane systems have the disadvantage that they must be classified in a lower flame retardant class because of possible free isocyanate.
  • expanded polystyrene foam bodies were first produced outside the window profile and then inserted into a profile.
  • EP 0 296 408 A1 describes extruded foams of polyphenylene ether / polystyrene mixtures with low density and high compressive strength. These foams are made by the
  • Hydrocarbons are mixed. Subsequently, the mixture is extruded, whereby the material expands to a foam body.
  • EP 0 937 741 A1 A solution to this problem is provided by EP 0 937 741 A1, according to which a mixture of low-boiling ethers such as dimethyl ether and water is to be used as the blowing agent.
  • this blowing agent mixture gives improved foam density, foam power and Surface shape.
  • the blowing agent mixture can be used inter alia for foaming polyphenylene ether / polystyrene mixtures.
  • the resin granules according to EP 0 377 1 15 A2 are prepared by cooling an extrusion mixture of resin and blowing agent below the softening point of the resin and processing it into a granulate.
  • WO 2009/062986 A1 A solution to this problem is proposed by WO 2009/062986 A1, according to which a foamable material in the form of granules is introduced into the cavity of the profile during the extrusion of a PVC profile. By contact with the still hot profile, a blowing agent contained in the granules is activated and achieved a foaming of the material in the still hot PVC profile. In this process, it is necessary that the foam is incompatible with the profiled plastic, otherwise it becomes an undesirable
  • Cavity in the profile can not be completely filled with compositions consisting essentially of a foamable base polymer and a blowing agent, since foaming only takes place on contact with a surface of the hollow profile. This leads partly to the fact that the
  • Cavity body and the processing properties of the material used as a separately pre-fixed part in the hollow body or cavity and use in a non-expanded initial state on
  • EP 0 265 788 B1 describes a process for producing expanded particles of low density polyphenylene ether resin compositions, wherein the polyphenylene ether resin is blended with up to 98% by weight of an alkylene aromatic resin, based on the weight of the two resins taken together. This procedure is thereby
  • WO 201 1/062632 A1 describes the foaming of polyvinyl chloride. However, the density of the resulting foam is not satisfactory.
  • the invention has for its object to overcome the above disadvantages, in particular to provide a polymer foam, which is such that it fills the cavity as evenly as possible without significantly deform the profile walls and does not contract appreciably during cooling. It should also be possible during the production of plastic profiles to introduce the polymer foam directly into the still hot extruded profiles, for example by direct coextrusion, and thus to create a cost-effective alternative to the subsequent "insertion" of preformed foams in the profile. Furthermore, a good insulation should be made possible and it should be possible no adhesion to the profile, which would be unfavorable in terms of recyclability.
  • a polymer foam according to claim 1 This is by extrusion of a composition which a) a polymer blend of polystyrene, polyphenylene oxide and / or polyphenyl ether, b) at least one Propellant and c) at least one nucleating agent, available.
  • the core of the invention is therefore in the use of a special
  • the polymer blend is a polymer blend of polystyrene and polyphenylene oxide.
  • the polymer blend is a polymer blend of polystyrene and polyphenyl ether.
  • a polymer blend of polystyrene, polyphenylene oxide and polyphenyl ether represents a further preferred embodiment of the invention.
  • the three polymers which can be used in the polymer blend (polystyrene, polyphenylene oxide and polyphenyl ether) are completely miscible with one another.
  • the polymer blend has only a glass transition temperature T g , which is preferably in the range of about 1 10 ° C to 210 ° C, more preferably in the range of about 140 ° C to about 170 ° C. By varying the individual components or their proportions in the polymer blend, the T g can be adjusted to the desired value.
  • the glass transition temperature T g was determined as follows:
  • the glass transition temperature T g is adjusted to the extrusion temperature. Customize means that
  • Glass transition temperature T g is about 20 ° C to 40 ° C, preferably about 30 ° C to 40 ° C, below the extrusion temperature.
  • the use of the polymer blend leads to the advantage that the rheological properties of the composition can be adjusted such that the foaming behavior under the given process conditions, for example an extrusion temperature of about 200 ° C., is advantageous over previously used formulations.
  • the composition which is extruded into the polymer foam is already loaded with a blowing agent prior to extrusion. Furthermore, it is preferred that the nucleating agent is also added prior to extrusion of the composition to be extruded.
  • the EPS products (expandable polystyrenes) from Synbra Technology bv, in particular their HT EPS (high temperature expandable polystyrene) products, can be used if at least one nucleating agent is added to them.
  • Preferred products are HT EPS 600, HT EPS 800 and HT EPS 1000, all available from Synbra
  • Synbra Technology bv. Synbra Technology bv products are those products that were on sale on October 23, 2012. That is, it is preferably not first the polymer matrix
  • blowing agent before the material is extruded directly to the foam, but the loading of the composition with blowing agent and / or nucleating agent is carried out before extrusion.
  • the polymer blend is usually the main component of the
  • composition wherein its proportion, based on the total composition, preferably about 50 to 95 wt .-% is. Especially Preferably, the content of polymer blend is in the range of about 70 to 95 wt .-%.
  • the proportion of the polyphenylene oxide and / or the proportion of the polyphenyl ether is preferably about 40 to 80 wt .-%, in particular up to about 60 wt .-%, based on the polymer blend.
  • the at least one propellant may be a physical and / or chemical propellant.
  • a physical blowing agent is preferred since this, compared with nitrogen and
  • Carbon dioxide which is commonly formed in chemical blowing agents, has improved solubility in the polymer matrix, which is especially true for the short chain alkanes such as propane, butane, pentane, heptane, and octane. Furthermore, the use of a physical blowing agent due to its molecular size leads to improved thermal conductivity and the diffusion rate of the gas molecules through the polymer is reduced, whereby the volume can be better kept, d. H. less shrinkage occurs.
  • An advantage of using a physical blowing agent due to its molecular size leads to improved thermal conductivity and the diffusion rate of the gas molecules through the polymer is reduced, whereby the volume can be better kept, d. H. less shrinkage occurs.
  • Propellant is also in the elimination of the complex reactions and the known side effects (for example, additional energy input), which bring chemical blowing agents with it.
  • Propellant is a hydrocarbon, preferably selected from the group comprising pentane, heptane, octane, nonane and / or decane and their isomers.
  • HFC gases such as Formacel 1 100 from DuPont, can be used.
  • the blowing agent in the composition of the invention consists of hydrocarbons.
  • the physical blowing agent is a mixture of n-pentane and iso-pentane.
  • n-pentane and iso-pentane are used in a ratio of about 3: 1 to about 4: 1.
  • Composition is about 2 to 15 wt .-%, preferably about 3 to 10 wt .-%, and particularly preferably about 5 to 9 wt .-%.
  • a chemical blowing agent can also be used.
  • the chemical blowing agent is preferably selected from the group comprising azodicarbonamides, sulfohydrazides, bicarbonates and / or carbonates.
  • the chemical blowing agent is, based on the total composition, preferably in an amount of about 5 to 20 wt .-%, more preferably in an amount of about 12 to 16 wt .-%, used.
  • composition of the invention comprises by means of extrusion
  • the at least one nucleating agent is preferably selected from the group comprising CaCO 3 (chalk), talc, carbon black, graphite, titanium dioxide and / or at least one chemical blowing agent (as defined above). That is, as a nucleating agent, a chemical blowing agent can be used. However, this is only used if the at least one propellant is a physical propellant and not a chemical propellant. The chemical blowing agent contributes to a small extent to the expansion. The use of the at least one nucleating agent improves the group comprising CaCO 3 (chalk), talc, carbon black, graphite, titanium dioxide and / or at least one chemical blowing agent (as defined above). That is, as a nucleating agent, a chemical blowing agent can be used. However, this is only used if the at least one propellant is a physical propellant and not a chemical propellant. The chemical blowing agent contributes to a small extent to the expansion. The use of the at least one nucleating agent improves the
  • CaCO 3 (chalk) is preferably used in an amount of up to about 15% by weight, based on the total composition. Talk becomes
  • a chemical blowing agent is used as the nucleating agent, then it is used, based on the total composition, preferably in an amount of up to about 1.5% by weight, particularly preferably up to about 1.0% by weight.
  • Carbon black, graphite and / or titanium dioxide are preferably used in an amount of up to about 5% by weight, based on the total composition.
  • composition from which the polymer foam according to the invention can be obtained by extrusion may contain further customary constituents.
  • Heat reflector At least one heat loss additive, at least one
  • Antioxidant present and / or at least one anti-condensation additive present and / or at least one anti-condensation additive.
  • the flame retardant is preferably aluminum trihydrate, hexabromocyclododecane, tetrabromobisphenol A and / or polybrominated diphenyl ether.
  • Useful heat reflectors are carbon black, graphite and / or titanium dioxide, which, as mentioned above, can also be used as nucleating agents.
  • Suitable antioxidants are, for example, hindered phenols.
  • the composition may also be coated with at least one surface antistatic agent.
  • the composition from which the polymer foam of the invention is obtainable by extrusion comprises a) at least about 70% by weight of a polymer blend of polystyrene,
  • polymer foam according to the invention is obtained by extrusion of the above-described composition. Foaming by extrusion has several advantages over foam formation using water vapor. So can by means of
  • Water vapor moldings can only be produced in a batch process and not in a continuous process. By means of steam no endless bodies can be obtained.
  • the extrusion does not require any pre-foaming and aging, which requires several process steps.
  • the polymer foam according to the invention which is obtained by means of extrusion of the above-described composition, is less energy-intensive and therefore more cost-effective.
  • the blowing agent in the polymer foam according to the invention remains trapped longer than in known particle foams, which leads to an improvement in the isolation. Extrusion provides a continuous and homogeneous strand.
  • the extrusion can be carried out in a conventional extrusion device.
  • the temperature should be between 50 and 350 ° C, preferably between 80 and 220 ° C, lie.
  • the pressure conditions should be at least about 30 bar, more preferably about 50 bar.
  • the extrusion device has a nozzle geometry such that an abrupt pressure drop occurs at the outlet of the extrusion.
  • the pressure drop is preferably adjusted to the rheological properties of the polymer foam.
  • FIGS. 5A and 5C Examples of such nozzles are shown in FIGS. 5A and 5C. Particularly preferred devices are explained below and shown in the figures, wherein the part of the device, which relates to the fusion of the thermoplastically processable plastic, is omitted here. In a preferred embodiment, the inventive
  • Polymer schaunn a density of 15-100 kg / m3, preferably from 20-60 kg / m3 and most preferably from 25-30 kg / m3 on.
  • the polymer foam according to the invention also preferably has one
  • welding mirror remain. By welding, it should therefore come to any weakening of the mechanical and optical properties. Particularly preferred is the use of Teflon-coated welding mirrors.
  • the polymer foam is preferably characterized by at least one further property listed below:
  • the polymer foam has all of the aforementioned properties.
  • Another aspect of the present invention relates to a hollow body with a cavity into which the polymer foam according to the invention is introduced.
  • the hollow body with cavity is preferably window or door profiles. Furthermore, it is preferred if the cavity into which the polymer foam according to the invention has been introduced is completely filled with it.
  • Plastic profiles can advantageously also be produced by a method in which a composition as described above is introduced and foamed during the extrusion of the profile into at least one of the cavities of the profile.
  • Polymer foam is available, at high extrusion temperatures,
  • temperatures of 160 to 210 ° C and more preferably from 180 to 200 ° C can be foamed.
  • the present invention also relates to a process for producing a hollow body or cavity foamed with the abovementioned polymer foam as an insulating material, a composition comprising a) a polymer blend of polystyrene, polyphenylene oxide and / or polyphenylene ether, b) at least one blowing agent, and c) at least a nucleating agent comprises, fed to an extrusion device, activated in this under pressure and expanded during discharge from this into the hollow body or the cavity with such a high Volumenausdehnungsgrad, that the insulation formed by the expansion, the cross section of the hollow body or cavity at the entrance without delay, preferably completely fills ,
  • a composition comprising a) a polymer blend of polystyrene, polyphenylene oxide and / or polyphenylene ether, b) at least one blowing agent, and c) at least a nucleating agent comprises, fed to an extrusion device, activated in this under pressure and expanded during discharge from this into
  • a certain pressure is present even before the activation so as to allow premature foaming
  • the pressure should already be generated at the point at which the composition from which the polymer foam according to the invention is obtainable, has not yet melted.
  • the screw configuration in the extruder is designed such that the flight depth of the screw before melting is approximately in the range of the size of the composition from which the polymer foam according to the invention is obtainable by extrusion.
  • Plastic material and the composition of the polymer foam according to the invention is available by extrusion, adapted to each other. This is especially true since the degree of expansion is preferably controlled by the amount of propellant.
  • Solid feedstock is supplied in granular form.
  • Solid, granular starting material can be easily and inexpensively formulated, stored and processed with little residual pressure and thus offers considerable advantages over liquid or pasty formulations.
  • a current view from the environmental aspects and economically particularly important embodiment of the hollow body is a from a
  • the invention can also be used with extruded metal profiles for window and door frames and, in addition, for other types of products, for example for the in-situ sealing of joints or insulation of
  • the cavity may be the chamber of a single-chamber profile or a chamber of a multi-chamber profile, wherein one or more remaining chambers may well be free of insulation material.
  • Plastic extrusion device is used with at least one screw conveyor and the plastic extrusion device is configured and the mechanical properties of the starting material are predetermined so that high pressures and / or shear forces occur that prevent premature foaming of the material and / or thermal activation of the starting material at least contribute.
  • a plastic extrusion device is used with a heater and the
  • Heating device operated so that it contributes to a thermal activation of the starting material at least.
  • a combination of both ways to activate the starting material is possible.
  • the expansion process of the starting material during discharge from the extrusion device is controlled by a special nozzle geometry. Customized and tailored to the specific insulating material (or its starting material)
  • the geometry of the nozzle is first a gradual reduction in cross-section with a small gradient over a long length, then keeping the cross-section constant over a small length and then a gradual reduction in cross-section with a large
  • FIGS. 5A and 5C This section subdivision of the nozzle is an advantageous realization from the current point of view, but it should be noted that not
  • Feeding through the tool can be vented or vented (degassing). Under certain circumstances, this can also be equipped with an adjustable pressure valve. This prevents being in the space between Profile chamber and foam an excessive underpressure or overpressure arises, which can lead to an undesirable deformation of the plastic profile.
  • the invention also relates to the hollow bodies or cavities contained with the above-mentioned method.
  • Another aspect of the present invention relates to a process for the extrusion of two (polymer foam and plate / plate profile) and / or three components (sandwich panels), wherein the polymer foam according to the invention described above is used.
  • the polymer foam by means of suitable additives, such as
  • the polymer foam according to the invention acts as a thermal insulation layer.
  • Fig. 1 is a schematic representation for explaining a
  • Embodiment of the method according to the invention in the manner of a longitudinal section through a coextrusion arrangement,
  • FIG. 2 sketch-like cross-sectional views of a simple
  • 3A and 3B are schematic representations (longitudinal sectional view) with a graphical representation of an associated pressure curve
  • FIGS. 4A and 4B are schematic representations (longitudinal sectional view) with a graphical illustration of an associated pressure curve (FIG. 4A) and cross-sectional views along a sectional plane in Fig. 4A (Fig. 4B) for explaining a further embodiment of the invention
  • FIG. 5A and 5B are schematic representations (longitudinal sectional view) with a graphical representation of an associated pressure profile (FIG. 5A) and cross-sectional representations along a sectional plane in FIG. 5A (FIG. 5B) to explain a further embodiment of the invention;
  • 5C and 5D are schematic representations of another embodiment
  • 6A to 6D are longitudinal sectional views and a plan view of a
  • FIGS. 7A and 7B are a longitudinal sectional view and perspective view of an additional part of a plastic extrusion device according to another embodiment of the invention.
  • 1 shows a coextrusion process according to the invention for the production of plastic profiles 1 with a foamed insulation core 2 is shown schematically.
  • thermoplastically processable plastic 5 filled This plastic can be in any form.
  • the plastic is present as granules or as a powder.
  • the plastic is preferably extruded at a temperature of 150 ° C to 350 ° C, in particular from 170 ° C to 260 ° C, preferably from 180 ° C to 220 ° C, extruded.
  • the plastic 5 passes through the hopper 3 in the interior of the first extruder 4.
  • the plastic is conveyed by means of a screw conveyor 6, which is operated by a motor 7 via a gear 8 in the direction of a nozzle 9 and simultaneously by heating elements 10, which attached to the first extruder, heated from the outside to a temperature above its melting point, whereby the plastic melts.
  • the molten plastic 5 ' is pressed through the nozzle 9, which has approximately the cross-sectional shape of the profile to be produced.
  • foamable material 1 i. the composition described above, in particular in the form of granules, filled in the hopper 12 of a second extruder 13 and then passes through this into the interior of the second extruder.
  • the foamable material 1 1 is by means of a
  • Conveying screw 14 which is operated by a motor 15 via a gear 16, in the direction of a nozzle 17 promoted.
  • a suitable geometric configuration of the screw and the worm cylinder targeted high pressures and shear forces are generated, which lead to softening and activation of the originally solid granules, and an additional heating device 18 provided supports this process.
  • the activated foamable material 1 1 'under almost sudden expansion which is controlled by a special geometric configuration of the nozzle, coextruded into the cavity of the plastic hollow profile 1 a, where it with the inner walls of the Kunststoffholprofils in touch comes.
  • the insertion of the plastic profile 1 in a calibration device 19 is intended to ensure that the plastic hollow profile is not deformed by the pressure of the foamed material until solidification of the plastic, but maintains its predetermined cross-sectional shape. This is especially true for the outer walls.
  • a separate cooling device where it passes for example in a water bath or sprayed by water showers.
  • a discharge device 20 At the end of the coextrusion process is via a discharge device 20 the
  • Plastic profile 1 at a constant, adapted to the flow rate of the extruder, speed deducted.
  • the cross-sectional shape of the nozzle 17 corresponds to that of the profile.
  • Corner areas. 3A and 3B show exemplary geometries of a discharge nozzle 17 in a schematic longitudinal or cross-sectional view together with a subdivided into several chambers plastic profile V with a Dämmkern 2 in a chamber 1 a.
  • At the outlet of the nozzle here are additional steel baffles 21 for lateral limitation of the expanding insulating material after leaving the nozzle and to reduce its adherence to the
  • a nozzle or injection core (mandrel) 22 is provided for pre-embossing the shape in which the activated starting material 1 1 'expands to the finished insulating material 2.
  • Fig. 3A it can be seen that the nozzle core 22 is double-conically shaped in the longitudinal extent, and Fig. 3B shows, as a cross-sectional view along the
  • Sectional plane A 'in Fig. 3A two different cross-sectional shapes (in
  • FIG. 3A shows the pressure profile at the outlet of the extrusion device.
  • Figs. 4A and 4B show a similar nozzle arrangement as in Figs. 3A and 3B in connection with the same plastic profile V.
  • nozzle core 22 is dimensioned substantially smaller here in its central dimensions and the nozzle 17 '(in addition to a first portion of constant diameter, which is not separately designated) a constriction portion 17a' with a
  • FIG. 4A again shows the pressure curve
  • FIG. 4B shows three examples of FIG
  • the cross section of the nozzle core is here so either rectangular or butterfly-shaped or elliptical, which is
  • FIGS. 5A and 5B show, as a fundamentally different embodiment, a nozzle 17 "of an extrusion device which passes the expanding insulating material through a nozzle 17" Aperture (Strainer) 23 discharges, again in conjunction with the
  • the nozzle 17 "comprises an approximately hemispherical expansion section 17a" which merges into a cylindrical section 17b "of larger diameter next to the feed section of constant diameter, the pinhole 23 being located at its end and thus directly at the exit of the nozzle 17" for which three different implementations are shown in FIG. 5B.
  • FIG. 5C shows, as a further embodiment, a nozzle 17 "', which has a
  • Plastic profile 1 ' which has the same shape as in the embodiment of FIGS. 3A and 3B. From the diagram in the lower part of the figure it can be seen that the pressure drop is faster here than in the embodiment of FIGS. 3A and 3B.
  • Fig. 5D shows a synoptic representation of some
  • Nozzle cross sections cross sections of the end of the necking section 17a '' ') relative to the wall of the central profile chamber 1a
  • Nozzle arrangement has a first nozzle portion 17a of great length, in which the nozzle cross section with small pitch continuously decreases, a second nozzle portion 17b of short length, in which the cross section remains constant, a third nozzle portion 17c short length, in which the nozzle cross section decreases with high pitch , a fourth
  • Nozzle section 17d of medium length in which the nozzle cross section with increased mean slope, and a fifth nozzle portion 23 having a plurality of spray openings. Furthermore, it can be seen that the
  • the additional part 24 is divided into a plurality of individual (not separately designated) plates, wherein the first nozzle portion 17a is realized by two longitudinally juxtaposed plates or body. Due to this modular structure, variations of the nozzle geometry in certain sections can be realized relatively easily without having to produce a new additional part 24 as a whole.
  • Figs. 6C and 6D show further embodiments of a particular one
  • Nozzle assembly for shaping the insulation material flow in the
  • the nozzle sections 17a and 17b are in any case functionally identical to each other and to the
  • FIGS. 6A and 6B match.
  • the nozzle portion 17b of constant width as in the embodiment of Fig. 6A, is followed by a portion 17c in which the width of the insulating discharge channel decreases with high gradient.
  • the narrow end of the nozzle portion 17c is in this embodiment at the same time the discharge opening of the nozzle.
  • a nozzle section 17B of constant width is immediately followed by a nozzle section 17d 'of increasing diameter, and on the output side there is a strainer 23.
  • the embodiment of Fig. 6D is similar to that of Fig. 6A, however, in the present case, the narrowing nozzle section has dropped on the input side of the widening nozzle section 17d ', and the
  • End cross-section of the expanding nozzle portion is chosen such that all openings of the strainer 23 are passed by discharged insulation.
  • Figs. 7A and 7B show a relation to that described above
  • Modified modified additional part 24 ' which for placement on the
  • Output of the extrusion device 13 is constructed.
  • this additional part 24 ' is in principle the same geometry of the nozzle assembly 17 as shown in Fig. 6A realized, so that the nozzle sections with the same reference numerals as there are designated.
  • Figs. 7A and 7B the modules constituting the attachment 24 'are designated by the numerals 24a' to 24f, and also the attachment bolts 25 for mounting the modules are indicated.
  • the foams tested contained a polymer blend of polystyrene and polyphenylene oxide / polyphenyl ether, a blowing agent and a nucleating agent.
  • blowing agent a mixture of n-pentane and iso-pentane was used.
  • the blowing agent is already included in the HT EPS products used.
  • the nucleating agents used were azodicarbonamide (samples 1 and 3) and talc (samples 2 and 4).
  • Table 1 The investigated compositions are shown in the following Table 1:
  • the resulting foams are characterized by a fine and very regular foam structure. Furthermore, they show little shrinkage after extrusion. These properties were determined by visual inspection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

L'invention concerne une mousse polymère obtenue par extrusion d'une composition comprenant a) un mélange de polymères composé de polystyrène, de polyphénylène oxyde et/ou de polyphényléther, b) au moins un agent d'expansion et c) au moins un agent de nucléation, ainsi que l'utilisation de cette mousse pour remplir des corps creux, en particulier sous forme de profilés de fenêtres ou de portes. L'invention concerne également des corps creux remplis de mousse, des produits extrudés et un procédé de fabrication de la mousse polymère.
EP14709308.2A 2013-03-12 2014-03-12 Mousse polymère et son utilisation dans des corps creux Withdrawn EP2970614A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14709308.2A EP2970614A1 (fr) 2013-03-12 2014-03-12 Mousse polymère et son utilisation dans des corps creux

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13158828 2013-03-12
EP14709308.2A EP2970614A1 (fr) 2013-03-12 2014-03-12 Mousse polymère et son utilisation dans des corps creux
PCT/EP2014/054768 WO2014140063A1 (fr) 2013-03-12 2014-03-12 Mousse polymère et son utilisation dans des corps creux

Publications (1)

Publication Number Publication Date
EP2970614A1 true EP2970614A1 (fr) 2016-01-20

Family

ID=47843196

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14709308.2A Withdrawn EP2970614A1 (fr) 2013-03-12 2014-03-12 Mousse polymère et son utilisation dans des corps creux

Country Status (3)

Country Link
US (1) US20160145404A1 (fr)
EP (1) EP2970614A1 (fr)
WO (1) WO2014140063A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10245783B2 (en) * 2015-05-21 2019-04-02 Kenneth Fuller Printer for three dimensional printing
BE1027400B1 (de) * 2019-07-05 2021-02-01 Nmc Sa Koextrusionskopf für die herstellung von verbundstoffprofilteilen aus polystyrolschaum niedriger dichte
EP4023408B1 (fr) * 2021-01-05 2023-08-02 Promix Solutions AG Procédé de fabrication d'un extrudat expansé
IT202100012026A1 (it) * 2021-05-11 2022-11-11 Vb Soluzioni E Tecnologie S R L Stazione di centrifugazione per impianti di estrusione
EE05890B1 (et) * 2023-06-06 2026-02-16 Tiree OÜ Meetod profiilelemendi koekstrudeerimiseks
EE01678U1 (et) * 2023-06-06 2026-02-16 Tiree OÜ Meetod profiilelemendi koekstrudeerimiseks

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598101A (en) * 1983-12-12 1986-07-01 Mobil Oil Corporation Polymer foam, thermoformed shapes thereof and methods of forming same
US4857390A (en) * 1987-06-26 1989-08-15 General Electric Company Low density extruded foam having high compressive strength
EP0305862A1 (fr) * 1987-09-04 1989-03-08 General Electric Company Procédé en une étape pour la production de perles expansibles en mousse
US4994217A (en) * 1988-12-29 1991-02-19 General Electric Company Low odor polyphenylene ether/polystyrene process
NL1008383C2 (nl) * 1998-02-20 1999-08-24 Synbra Tech Bv Werkwijze voor het vervaardigen van schuimmaterialen door extrusie, alsmede een inrichting voor het uitvoeren van een dergelijke werkwijze.
GB2453512B (en) * 2007-10-08 2009-11-25 Gurit Composite laminated article and manufacture thereof
PL2062717T3 (pl) * 2007-11-13 2013-10-31 Sika Tech Ag Sposób wytwarzania usztywnionych profili z tworzywa sztucznego o polepszonej izolacji termicznej do budowy okien oraz ich zastosowanie

Also Published As

Publication number Publication date
US20160145404A1 (en) 2016-05-26
WO2014140063A1 (fr) 2014-09-18

Similar Documents

Publication Publication Date Title
WO2014140063A1 (fr) Mousse polymère et son utilisation dans des corps creux
EP2062717B1 (fr) Procédé de fabrication de profils en matière plastique durcis à isolation thermique améliorée pour la structure d'une fenêtre et la utilisation
EP2828055B1 (fr) Composition moussante à moindre conduction thermique pour l'utilisation dans des profils plastiques
DE60023409T2 (de) Mehrschichtiges Expansionsformteil aus Polypropylenharz, Verfahren zur Herstellung, und aus dem mehrschichtigen Expansionsformteil hergestellte Behälter und stossabsorbierendes Material für Fahrzeugunterteil
EP2668036B1 (fr) Procédé de production d'un film plastique multicouche
EP2828057B1 (fr) Procédé et dispositif d'extrusion de matière plastique permettant de produire un corps creux ou un vide moussé au moyen d'une substance isolante
EP0417405B1 (fr) Procédé de préparation d'une mousse de polymère thermoplastique
DE3152243T1 (de) Method and apparatus for making large size,low density,elongated thermoplastic cellular bodies
WO2014060205A1 (fr) Procédé permettant de produire un élément en mousse et extrudeuse manuelle de mousse
EP2602086B1 (fr) Procédé de fabrication d'un profil creux en matière synthétique avec au moins une chambre creuse pourvue d'un corps expansé et outil d'extrusion prévu à cet effet
AT516041B1 (de) Fenster
EP2760654B1 (fr) Procédé de moussage de profilés de chambre creux
WO2014114437A2 (fr) Procédé de fabrication d'un produit alvéolaire et dispositif à cet effet
DE19850340C2 (de) Verfahren zur Herstellung von Schäumen aus Polymeren oder Polymergemischen sowie daraus herstellbarer Formkörper
WO2012052144A1 (fr) Procédé d'introduction de matériau en mousse dans des profils à chambres creuses, ainsi que profils à chambres creuses
DE102012001108A1 (de) Verfahren und Vorrichtung zur Herstellung von mit Fasern versetzten Polymerschäumen
EP1072375A2 (fr) Méthode et appareil de préparation de mousses polymères
EP4105428A1 (fr) Profilé d'extrusion, procédé de fabrication d'un profilé d'extrusion et partie de porte et/ou fenêtre
AT412767B (de) Verfahren zum herstellen von länglichen gegenständen sowie mit diesem verfahren hergestellter gegenstand
EP1952964A1 (fr) Procédé de fabrication d'un tableau de bord
DE10063894A1 (de) Dämmleiste aus einem Kunststoff hoher Festigkeit zur gegenseitigen Verbindung zweier Metallprofile zu einem Verbundprofil
EP4105429A1 (fr) Profilé de co-extrusion, procédé de fabrication d'un profilé de co-extrusion et système de porte et/ou de fenêtre
DE10026757A1 (de) Verfahren zur Herstellung geschäumter Bauteile
DE102011110613B4 (de) Verfahren zur Herstellung einer extrudierten Schaumbahn sowie nach diesem Verfahren hergestellte Schaumware
EP2246172A2 (fr) Procédé de fabrication de composants légers en plastique expansé

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20151012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20171003