EP4580856A1 - Procédé de production d'un stratifié de couche barrière, stratifié de couche barrière et contenant fabriqué à partir du stratifié de couche barrière - Google Patents

Procédé de production d'un stratifié de couche barrière, stratifié de couche barrière et contenant fabriqué à partir du stratifié de couche barrière

Info

Publication number
EP4580856A1
EP4580856A1 EP23768175.4A EP23768175A EP4580856A1 EP 4580856 A1 EP4580856 A1 EP 4580856A1 EP 23768175 A EP23768175 A EP 23768175A EP 4580856 A1 EP4580856 A1 EP 4580856A1
Authority
EP
European Patent Office
Prior art keywords
barrier layer
container
layer
polyolefin
weight
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
EP23768175.4A
Other languages
German (de)
English (en)
Inventor
Reginaldo Cintra IURKIV
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.)
Greif International Holding BV
Original Assignee
Greif International Holding BV
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 Greif International Holding BV filed Critical Greif International Holding BV
Publication of EP4580856A1 publication Critical patent/EP4580856A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
    • B29B17/0042—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting for shaping parts, e.g. multilayered parts with at least one layer containing regenerated plastic
    • 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
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • B29B17/0412—Disintegrating plastics, e.g. by milling to large particles, e.g. beads, granules, flakes, slices
    • 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
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/08—Copolymers of ethylene
    • B29K2023/086—EVOH, i.e. ethylene vinyl alcohol copolymer
    • 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
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • 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
    • B29K2105/26—Scrap or recycled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/02—2 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/04—4 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/05—5 or more layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/02—Synthetic macromolecular particles
    • B32B2264/0214—Particles made of materials belonging to B32B27/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2272/00—Resin or rubber layer comprising scrap, waste or recycling material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/40—Closed containers
    • B32B2439/60—Bottles

Definitions

  • the invention relates to a method for producing a barrier layer laminate according to the preamble of claim 1, a barrier layer laminate according to the preamble of claim 8 and a container with/from such a barrier layer laminate according to the preamble of claim 9, as well as a method for producing a container with/from one such recycled barrier layer laminate.
  • Barrier layer laminates have been known from the prior art for some time.
  • the term barrier layer laminates refers to laminates that have a barrier layer that is impermeable to gases.
  • the structure of previous barrier layer laminates is based, according to the current state of the art, on the fact that such laminates have one or more barrier layers that are incorporated into the laminate structure or the layer structure of the remaining base laminate are integrated.
  • barrier layer laminates A disadvantage of these previously known barrier layer laminates is that a connection between the one or more barrier layers and the layers arranged adjacent to the barrier layer must, on the one hand, be very strong and stable in order to avoid delamination of the layers, but on the other hand causes the barrier layers and the rest
  • REPLACEMENT SHEET (RULE 26) Layers of the laminate are disadvantageously practically no longer separable from one another. The latter has an extremely disadvantageous effect, particularly when reusing or recycling products manufactured with such a barrier layer laminate, such as packaging or containers or their materials, and prevents effective recycling in most cases. This is essentially because the structuring base materials, such as polyethylene or polypropylene, from which such barrier layer laminates are made, are generally non-polar, while the barrier layer materials themselves, such as polyamide or ethylene vinyl alcohol copolymer, have polar groups.
  • the invention is based on the object of providing a method as well as a barrier layer laminate and a container produced with such a barrier layer laminate, through which the aforementioned problems are avoided and the reusability and recyclability of products containing such barrier layer laminates is improved compared to the previous state of the art.
  • This object is achieved by a method according to claim 1, by a barrier layer laminate according to claim 8 and by a container made from such a barrier layer laminate according to claim 9 and further by methods for producing a container with/from such a recycled barrier layer laminate according to claims 13 and 14 .
  • barrier layer material Performing a coextrusion of barrier layer material, polyolefin and recycled plastic mixture to produce a barrier layer laminate with the following layer sequence:
  • the object according to the invention is also achieved by a method for producing a container, which is characterized by the following steps:
  • the shredded barrier layer laminate is also fed into an extruder while the virgin polyolefin is divided between two extruders.
  • the extruder nozzles are preferably arranged concentrically to one another, it being important to ensure that the extruder nozzles, or the content to be extruded with them, are arranged in the desired order, so that in a two-layer container the "virgin" polyolefin, in particular HDPE, depending on Desired is arranged inside or outside the container to be manufactured and that in a three-layer container the middle layer consists of the homogenized barrier layer laminate material.
  • the respective layers come into contact with one another immediately after leaving the extruder nozzles while they are still hot, which leads to an optimal and firm connection of the layers to one another .
  • This optimal connection of the layers to one another is also promoted by the fact that the material properties of the homogenized barrier layer laminate material, which is preferably based on HDPE, and the "virgin" polyolefin, in particular HDPE, are almost, ie essentially, identical and can therefore be intimately connected to one another.
  • the object according to the invention is also achieved by a method for producing a single-layer container, the following steps being carried out:
  • the granules obtained from the barrier layer laminate are fed to a blower in a proportion of, for example, 70% by weight of the total packaging, while in this example the remaining 30% by weight is “virgin” HDPE Barrier layer laminate amine groups of polyamide chains and / or hydroxyl residues of EVOH are dispersed, it is possible to mix or homogenize the granules with new HDPE, resulting in a unique mixture without phase separation, which has similar properties to HDPE and is therefore suitable for the production of new ones Packaging with the same physical, mechanical and performance properties as packaging made from virgin raw material or even PCR-HDPE (Post Consumer Recycled HDPE) can be used.
  • PCR-HDPE Post Consumer Recycled HDPE
  • Barrier layer laminates according to the invention are described below, which can be used in the form of 4-layer barrier laminates and 5-layer barrier laminates for the production of containers, for example with a capacity of four liters, 10 liters or even 20 liters, but also for all other desired volumes.
  • structural base polymer HDPE high density polyethylene with a density in the range of 0.951 g/cm 3 to 0.961 g/cm 3 ,
  • Barrier layer material EVOH ethylene vinyl alcohol copolymer
  • Adhesion promoter 0.2% modified LDPE (low density polyethylene) with a density of 0.921 g/cm 3
  • VLDPE very low density polyethylene
  • the density of the dye used is in the range of the aforementioned substances.
  • these substances are added to the extruders assigned to them according to the exemplary embodiments mentioned below and at temperatures in the range from 170 ° C to 250 ° C, preferably 190 ° C to 230 ° C, as part of a coextrusion to the desired one
  • three-dimensional preforms can be produced, which, after cooling to a temperature in the range of 8 ° C to 15 ° C, are blown in a further step in a blow mold surrounding the preforms with compressed air and a pressure in the range of seven to ten bar be inflated into a desired container with a desired geometry.
  • Example 7 The respective barrier layer laminate obtained from exemplary embodiments 1-7 can be homogenized after the barrier layer laminate is used for the first time for containers or other products and mixed with "virgin" base polymer, for example HDPE, or extruded parallel to these to form single-, two- or three-layer containers to produce which preferably have a capacity in the range of 0.5 l to 50 l, preferably 1 l to 20 l and are themselves self-supporting, ie dimensionally stable, and optionally also stackable.
  • "virgin" base polymer for example HDPE
  • the preform As already described above, is placed from the previous process in a non-melted state into a steel/aluminum mold that is filled with cold water at temperatures is cooled between 8 ° C and 15 ° C in order to shape and cool the preform with a predetermined design, whereby the shaped container changes from the pasty state to a solid state.
  • the shaping is carried out by blowing in compressed air at a pressure in the range of 7 to 10 bar for a certain time into the preform so that the manufactured product undergoes the correct shaping and solidification and thus takes on the shape of the mold.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un procédé pour produire un stratifié de couche barrière, notamment pour fabriquer des contenants, comprenant les étapes qui consistent à : fournir un matériau de couche barrière extrudable ; fournir une polyoléfine ; fournir des particules, en particulier des flocons ou des pastilles, de matière plastique stratifiée obtenue par broyage d'un stratifié extrudable disponible ou recyclé à couche barrière ; mélanger une partie de la polyoléfine avec les particules pour produire un mélange plastique recyclé ; amener le matériau de couche barrière, la polyoléfine et le mélange plastique recyclé respectivement dans une extrudeuse ; et réaliser une coextrusion de la matière de couche barrière, de la polyoléfine et du mélange plastique recyclé pour produire un stratifié de couche barrière présentant la suite de couches suivante : 1) une première couche extérieure, à savoir une couche extérieure barrière ; 2) une couche intégrée, à savoir une couche de mélange plastique recyclé ; 3) une deuxième couche extérieure, à savoir une couche extérieure de polyoléfine, disposée à l'opposé de la première couche extérieure, ainsi qu'un stratifié de couche barrière fabriqué avec un tel procédé et un contenant fabriqué à partir d'un matériau de couche barrière ainsi qu'un procédé correspondant.
EP23768175.4A 2022-09-01 2023-08-31 Procédé de production d'un stratifié de couche barrière, stratifié de couche barrière et contenant fabriqué à partir du stratifié de couche barrière Pending EP4580856A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022122136.9A DE102022122136A1 (de) 2022-09-01 2022-09-01 Verfahren zur Herstellung eines Barriereschichtlaminats, Barriereschichtlaminat und aus dem Barriereschichtlaminat hergestellter Behälter
PCT/EP2023/073886 WO2024047153A1 (fr) 2022-09-01 2023-08-31 Procédé de production d'un stratifié de couche barrière, stratifié de couche barrière et contenant fabriqué à partir du stratifié de couche barrière

Publications (1)

Publication Number Publication Date
EP4580856A1 true EP4580856A1 (fr) 2025-07-09

Family

ID=88016346

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23768175.4A Pending EP4580856A1 (fr) 2022-09-01 2023-08-31 Procédé de production d'un stratifié de couche barrière, stratifié de couche barrière et contenant fabriqué à partir du stratifié de couche barrière

Country Status (3)

Country Link
EP (1) EP4580856A1 (fr)
DE (1) DE102022122136A1 (fr)
WO (1) WO2024047153A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4705708A (en) * 1982-03-04 1987-11-10 American Can Company Multi-laminate structure containing a scrap layer and containers made therefrom
US4668571A (en) 1986-05-02 1987-05-26 The Dow Chemical Company Coextrustion tie layer and process for producing such tie layer
DE4314212A1 (de) * 1993-04-30 1994-11-03 Wolff Walsrode Ag Tiefziehbare, siegelbare, mindestens dreischichtige Recyclingfolie auf Basis von Polyamid und Polyolefinen mit hohem Recyclatanteil
FR2776228B1 (fr) * 1998-03-20 2000-05-19 Solvay Corps creux multicouche en matiere thermoplastique
JP2000258872A (ja) * 1999-03-10 2000-09-22 Fuji Photo Film Co Ltd 写真感光材料用包装材料
US7384679B2 (en) * 2000-08-29 2008-06-10 Pechiney Emballage Flexible Europe Encapsulated barrier for flexible films and a method of making and using the same
DE102005004548A1 (de) * 2004-03-11 2005-12-22 Schütz GmbH & Co. KGaA Verfahren zur Herstellung von Weithalsfässern aus thermoplastischem Kunststoff
KR102691447B1 (ko) * 2014-12-30 2024-08-05 도레이 플라스틱스 아메리카 인코오포레이티드 재생 폴리올레핀 재료로부터 공압출 가교된 다층 폴리올레핀 발포체 구조물 및 그의 제조 방법
ES2653722T3 (es) * 2014-12-31 2018-02-08 Dow Global Technologies Llc Embalaje de barrera autorreciclable
BR112020024397B1 (pt) 2018-05-30 2024-02-20 Amcor Flexibles North America, Inc Filmes para embalagem com teor de poliamida reciclada

Also Published As

Publication number Publication date
WO2024047153A1 (fr) 2024-03-07
DE102022122136A1 (de) 2024-03-07

Similar Documents

Publication Publication Date Title
DE69829208T3 (de) Mikrozellulares schaumstoff-extrusions/blasformverfahren und damit hergestellter gegenstand
DE69431589T2 (de) Verfahren und vorrichtung zur herstellung von extrudierbaren synthetischen holz
EP0447423B1 (fr) Preforme en dechets de matiere synthetique files ou extrudes
DE2933231C2 (fr)
EP2207662A1 (fr) Procédé et dispositif de fabrication en continu d'un extrudé de matériau végétal en fines particules et d'un matériau thermoplastique
EP4090509A1 (fr) Procédé de recyclage d'un produit de transfert
DE69905567T2 (de) Verfahren zur herstellung einer biaxial verstreckten folie aus evoh und polyester
DE69929161T2 (de) Leicht aufreissbare verbundsperrfolie und daraus hergestellter beutel
EP2504385B1 (fr) Procédé de fabrication de granulés de pet et granulés de pet
DE69017116T2 (de) Thermoplastische Schichtartikel, die mindestens zwei Harzschichten enthalten.
EP1678241A1 (de) Extrusionsverfahren zur herstellung von zähmodifizierten und schichtsilikatverstärkten thermoplastischen systemen
WO2024047153A1 (fr) Procédé de production d'un stratifié de couche barrière, stratifié de couche barrière et contenant fabriqué à partir du stratifié de couche barrière
JP2006192748A (ja) アルミニウム箔入り多層フィルムの再生方法およびこれを用いた再生品の製造方法
DE102015000262A1 (de) Verfahren zur Herstellung eines thermoplastischen Granulates
DE102016226064A1 (de) Hohlkörper umfassend eine Wand aus einem mehrschichtigen thermoplastischen Kunststoff sowie Verfahren zu dessen Herstellung
DE1544706C3 (de) Formmassen aus Polyolefinen und Polyamiden
EP3944949A1 (fr) Procédé et installation de fabrication de réservoirs de carburant
EP4238760A1 (fr) Tube multicouche durable
EP4534287A1 (fr) Film plastique multicouche comprenant un materiau en feuille recyclable enduit de colle, procede de production et utilisation dudit film
DE3906478C2 (fr)
EP4630218A1 (fr) Procédé pour produire une feuille, procédé pour produire un granulat, une feuille et une installation de moulage de matière plastique
CN109719858B (zh) 一种多层功能性共挤膜的回收方法
DE102024101800A1 (de) Anordnung auf Polyethylenbasis
DE102024130356A1 (de) Anordnung auf Polyethylenbasis
DE10046619A1 (de) Kunststoff-Zusammensetzung, Verfahren zu deren Herstellung sowie deren Verwendung, insbesondere als Barrieremedium

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

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

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20250224

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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)