Nothing Special   »   [go: up one dir, main page]

EP3619042A1 - Stratifié d'emballage recyclable, facilement déchirable, à effet barrière satisfaisant, et son procédé de fabrication - Google Patents

Stratifié d'emballage recyclable, facilement déchirable, à effet barrière satisfaisant, et son procédé de fabrication

Info

Publication number
EP3619042A1
EP3619042A1 EP18719175.4A EP18719175A EP3619042A1 EP 3619042 A1 EP3619042 A1 EP 3619042A1 EP 18719175 A EP18719175 A EP 18719175A EP 3619042 A1 EP3619042 A1 EP 3619042A1
Authority
EP
European Patent Office
Prior art keywords
layer
laminate
barrier
laminate layer
substrate
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
EP18719175.4A
Other languages
German (de)
English (en)
Inventor
Achim Grefenstein
Markus Kick
Thami LAMTIGUI
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.)
Constantia Pirk GmbH and Co KG
Original Assignee
Constantia Pirk GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=64132008&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3619042(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Constantia Pirk GmbH and Co KG filed Critical Constantia Pirk GmbH and Co KG
Priority claimed from PCT/EP2018/060462 external-priority patent/WO2018202479A1/fr
Publication of EP3619042A1 publication Critical patent/EP3619042A1/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
    • 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
    • B32B27/16—Layered products comprising a layer of synthetic resin specially treated, e.g. irradiated
    • 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
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • 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
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • 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
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/325—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polycycloolefins
    • 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
    • B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • 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
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • B32B2255/205—Metallic coating
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • 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
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/402—Coloured
    • B32B2307/4023—Coloured on the layer surface, e.g. ink
    • 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
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/514—Oriented
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/514—Oriented
    • B32B2307/516—Oriented mono-axially
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/582—Tearability
    • 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
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • 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
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7244—Oxygen barrier
    • 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
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7248—Odour barrier
    • 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
    • B32B2307/732—Dimensional properties
    • 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
    • B32B2307/746—Slipping, anti-blocking, low friction
    • 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
    • B32B2439/46—Bags
    • 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
    • B32B2439/70—Food packaging
    • 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
    • B32B2553/00—Packaging equipment or accessories not otherwise provided for
    • 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
    • B32B2597/00—Tubular articles, e.g. hoses, pipes
    • 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
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties

Definitions

  • the subject invention relates to a packaging laminate having a first laminate layer and a second laminate layer, wherein the first laminate layer comprises a barrier layer, and a method for producing such a packaging laminate.
  • packaging laminates are used, which should have different properties depending on the application.
  • Such packaging laminates are generally multilayer plastic films which are produced by the extrusion process, coextrusion processes (both in the flat film and blown film processes) or laminating processes (bonding of individual layers by means of a laminating adhesive), including mixtures thereof.
  • the packaging laminate may also incorporate non-plastic layers, for example a layer of aluminum or paper.
  • the packaging laminate also typically includes an outer sealant layer for thermosealing the packaging laminate into a desired package such as e.g. a bag, a sack, a bag, etc. to process.
  • a packaging laminate may also be in the form of a shrinkable film, which, depending on the application, may also be of sealable but unprinted type, e.g. for the packaging of larger portions of meat, can be made.
  • a typical requirement for a packaging laminate is a barrier function against water vapor, oxygen and aroma.
  • the packaging laminate typically contains a barrier layer of aluminum or a suitable barrier polymer, such as ethylene-vinyl alcohol copolymer (EVOH) or polyamide (PA).
  • EVOH ethylene-vinyl alcohol copolymer
  • PA polyamide
  • other layers may be included to give the packaging laminate the desired properties, such as toughness, stiffness, shrinkability, tear resistance, etc.
  • a sealant layer is typically made of a polyolefin, typically polypropylene (PP) or polyethylene (PE) in various densities LLDPE, LDPE, MDPE or HDPE.
  • the packaging laminate in order to be able to process the packaging laminate, the packaging laminate must not be thrown or rolled up (the so-called curling), which is why usually symmetrical layer structures are used.
  • orientation can be achieved by the extrusion process, for example in a multiple bubble process, or only after the extrusion process by stretching of the packaging laminate in the machine direction (in the longitudinal direction of the packaging laminate) and / or in the transverse direction (normal on the longitudinal direction). Due to the orientation of the packaging Above all, the stiffness, tensile strength and toughness can be improved. Furthermore, the orientation of the shrinkage property of the packaging laminate can be achieved that also rather cloudy materials, such as HDPE, achieve a higher transparency after stretching.
  • WO 2013/032932 A1 describes such a packaging laminate, for example with the structure HDPE / bonding layer / EVOH / bonding layer / sealing layer, as a shrink film. To produce the shrinkage property, the packaging laminate is stretched biaxially as a whole. However, stretching can only be carried out after the individual layers of the packaging laminate have achieved sufficient bond strength. Similar shows the WO 2009/017588 A1. WO 2013/032932 A1 and WO 2009/017588 A1, however, primarily aim at a suitable material for the bonding layer.
  • EP 673 759 B1 also discloses a packaging laminate for a shrink film having a barrier layer of EVOH and at least one further polymer layer, which should be compatible with the barrier layer in terms of stretching properties.
  • a further polymer layer an anhydride modified linear low density polyethylene (LLDPE) is mentioned.
  • WO 2015/175871 A1 in turn describes a packaging laminate of an HDPE layer, which is connected to a barrier layer, for example of PA, vinyl-containing or acrylate-containing polymers. Furthermore, a sealing layer, for example of LLDPE, can also be arranged on the barrier layer. The goal is to produce a recycle-friendly laminate by making the barrier layer a maximum of 5% of the total weight of the packaging laminate.
  • the packaging laminate of WO 2015/175871 A1 is not oriented.
  • a unidirectionally stretched film can be torn more easily parallel to the stretching direction than transversely thereto, and that such a film is torn parallel to the stretching direction in relation to an unstretched or bidirectionally stretched film, even with reduced tear strength can.
  • Such a film may also be part of a laminate, which may also comprise a barrier layer of aluminum or EVOH.
  • the unidirectionally stretched film gives the laminate good tear properties parallel to the stretching direction and substantially prevents it from tearing transversely thereto.
  • EP 1 769 908 A1 in turn describes that a laminate of a barrier layer (eg of EVOH) and a double-sided plastic layer can be easily torn in both directions if the plastic layer consists of a mixture of PE with a density between see 0.910 g / cm 3 and 0.960 g / cm 3 (ie LDPE, MDPE or HDPE) and a polycyclic olefin, such as a cycloolefin copolymer (COC) exists, and the laminate is subjected to a low bidirectional stretching.
  • a low bidirectional stretching occurs, for example, in the extrusion in the blown film process, with which a separate step of orientation of the laminate after extrusion can be omitted.
  • This object is achieved by co-extrusion of a first laminate layer consisting of a substrate layer having an HDPE content of at least 60% by volume, a tie layer and a barrier layer of a barrier polymer, preferably of polyamide or ethylene-vinyl alcohol copolymer, having a maximum thickness 20% of the total thickness of the first laminate layer, wherein the tie layer is disposed between the substrate layer and the barrier layer, subsequently stretching the coextruded first laminate layer in the machine direction, and then bonding the thus stretched first laminate layer to a second laminate layer having a polyethylene portion of at least 80% by volume, wherein the second laminate layer is bonded to the barrier layer of the first laminate layer.
  • a barrier polymer preferably of polyamide or ethylene-vinyl alcohol copolymer
  • the packaging laminate according to the invention comprises a first laminate layer and a second laminate layer, wherein the first laminate layer is a coextruded and MD stretched composite of a substrate layer having an HDPE content of at least 60% by volume, a tie layer and a barrier layer of a barrier polymer, preferably polyamide or ethylene-vinyl alcohol copolymer having a thickness of at most 20% of the total thickness of the first laminate layer, wherein the bonding layer is disposed between the substrate layer and the barrier layer and the first laminate layer is bonded to the second laminate layer at its barrier layer.
  • the first laminate layer is a coextruded and MD stretched composite of a substrate layer having an HDPE content of at least 60% by volume, a tie layer and a barrier layer of a barrier polymer, preferably polyamide or ethylene-vinyl alcohol copolymer having a thickness of at most 20% of the total thickness of the first laminate layer, wherein the bonding layer is disposed between the substrate layer and the barrier layer and the first laminate layer is bonded to the second laminate
  • the unidirectional stretching of the first laminate layer before lamination with the second laminate layer significantly increases the barrier effect of the first laminate layer.
  • the first laminate layer with the defined structure can be equally easily torn in both directions. These tearing properties are impressed on the packaging laminate so that the packaging laminate itself can easily be torn in both directions. can be.
  • the production is simplified considerably by the simple, asymmetrical structure and the only unidirectional stretching of the first laminate layer compared to conventional symmetrical, bidirectional structures, which also significantly reduces the production costs.
  • a machine-direction stretched (MDO) layer with a high HDPE content tends to splice longitudinally.
  • MDO layers with a high HDPE content have hitherto always been combined with the tougher LLDPE or mLLDPE, for example through a further layer of LLDPE, with a high LLDPE content being sought in the packaging laminate.
  • the first laminate layer with such a high proportion of HDPE is sufficiently tough even without such a tough LLDPE layer and does not tend to splice. The reason for this lies in the bonding layer, which gives the laminate layer the required toughness.
  • the first laminate layer can therefore also be advantageously used as a barrier film.
  • the optical properties of the packaging laminate can be improved if the first laminate layer is printed, metallized or coated on the barrier layer prior to bonding to the second laminate layer.
  • the barrier effect can be increased by metallizing or coating.
  • the first laminate layer on the substrate layer is joined to a further single-layer or multi-layer laminate layer.
  • the first laminate layer may be printed, metallized or coated on the barrier layer and / or on the substrate layer.
  • at least one layer of the further laminate layer can be printed, metallized or coated.
  • the first laminate layer is bonded to its substrate layer with a unidirectionally stretched fourth laminate layer comprising a substrate layer having an HDPE content of at least 60% by volume, a barrier layer of a barrier polymer, and a tie layer disposed therebetween.
  • a packaging laminate has particularly good barrier properties.
  • the second laminate layer is a coextruded, MD stretched laminate of a substrate layer having an HDPE content of at least 60% by volume, preferably at least 70% by volume and most preferably at least 80% by volume of a tie layer , a barrier layer of a barrier polymer, preferably of polyamide or ethylene-vinyl alcohol copolymer, having a thickness of at most 20% of the total thickness of the second laminate layer and a sealant wherein the bonding layer of the second laminate layer is disposed between the substrate layer and the barrier layer of the second laminate layer and the sealing layer is disposed on the substrate layer and the barrier layer of the second laminate layer is bonded to the barrier layer of the first laminate layer.
  • a packaging laminate also has particularly good barrier properties.
  • the sealing layer is thereby advantageously integrated into the coextruded second laminate layer, so that no further production steps are required for the packaging laminate.
  • FIG. 1 shows a first embodiment of a packaging laminate according to the invention
  • FIG. 2 shows a second advantageous embodiment of a packaging laminate according to the invention
  • FIG. 3 shows a third advantageous embodiment of a packaging board according to the invention
  • FIG. 4 shows a fourth advantageous embodiment of a packaging laminate according to the invention.
  • FIG 5 shows an embodiment of a first laminate layer as a symmetrical barrier film.
  • FIG. 1 shows a packaging laminate 1 according to the invention with a first laminate layer 2 and a second laminate layer 3 connected thereto.
  • the first laminate layer 2 in the packaging laminate 1 is stretched in the machine direction (MDO) and has an asymmetric layer structure with a substrate layer 4 and a barrier layer 6, which are interconnected by a bonding layer 5.
  • the thickness of the first laminate layer 2 is preferably 10 to 40 ⁇ " ⁇ .
  • Substrate layer 4 has a high density polyethylene (PE) content of at least 60% by volume, preferably at least 70% by volume, and most preferably at least 80% by volume.
  • PE polyethylene
  • the proportion of HDPE can go against 100% by volume, with 100% by volume usually never being achieved due to common additives (such as slip additives, antiblocking additives, fillers, etc.).
  • a HDPE is understood as meaning a PE with a density between 0.94-0.97 g / cm 3 .
  • the balance is a compatible polyolefin material, preferably a linear low density polyethylene (LLDPE) (having a density between 0.87-0.94 g / cm 3 ), a low density polyethylene (LDPE) (having a density between 0.915-0.935 g / cm 3 ) or also a linear metallocene low density polyethylene (mLLDPE), in particular to increase the toughness.
  • LLDPE linear low density polyethylene
  • LDPE low density polyethylene
  • mLLDPE linear metallocene low density polyethylene
  • a compatible polyolefin material are basically any types of polyethylenes in question, especially ethylene copolymers, such as ethylene-ene-vinyl acetate copolymer (EVA), methacrylic acid ethyl ester (EMA), ethylene / acrylic acid Copolymer (EAA) or ethylene-butyl acrylate copolymer (EBA).
  • EVA ethylene-ene-vinyl acetate copolymer
  • EMA methacrylic acid ethyl ester
  • EAA ethylene / acrylic acid Copolymer
  • EBA ethylene-butyl acrylate copolymer
  • PP polypropylene
  • COC cycloolefin copolymer
  • PP polypropylene random copolymer with ethylene as comonomer (customary from 5 to 15%), a polypropylene copolymer with ethylene or a polypropylene homopolymer which is mixed with linear PE types, such as mLLDPE, LLDPE or HDPE is sufficiently compatible, used to achieve at least limited recyclability.
  • linear PE types such as mLLDPE, LLDPE or HDPE
  • the HDPE and the compatible polyolefin material may be present in the substrate layer 4 as a mixture.
  • the substrate layer 4 can also be multilayered (extruded or coextruded) with one (or more) HDPE layer and one (or more) layer of the polyolefin material.
  • the thickness of the substrate layer 4 is preferably 5 to 35 ⁇ " ⁇ .
  • the barrier layer 6 consists of a barrier polymer, ie a polymer with a sufficient barrier property, in particular against oxygen, hydrogen and / or aroma.
  • the barrier polymer is preferably a polyamide (PA) or an ethylene-vinyl alcohol copolymer (EVOH).
  • PA polyamide
  • EVOH ethylene-vinyl alcohol copolymer
  • the barrier layer 6 has a maximum thickness of 20%, preferably 5 to 10%, of the total thickness of the first laminate layer 2, ie a maximum of 2 to ⁇ . Due to the small thickness of the barrier layer 6, the recycling friendliness is not impaired.
  • the connecting layer 5 is used to connect the barrier layer 6 and the substrate layer 4. In this case, a sufficient bond should be achieved adhesion, in particular to prevent unwanted delamination of the first laminate layer 2 safely.
  • Suitable tie layers 5 are preferably made of polymers having increased polarity, for example based on maleic anhydride-modified polyolefins (such as PE or PP), ethylene-vinyl acetate copolymer (EVA), ethylene / acrylic acid copolymer (EAA), ethylene-butyl acrylate copolymer ( EBA), or similar polyolefin copolymers.
  • the thickness of a connecting layer 5 is at most 10% of the total thickness of the first laminate layer 2, typically 1 to 5 ⁇ " ⁇ .
  • the second laminate layer 3 consists predominantly of a PE, wherein the PE content of the total amount of polymer of the second laminate layer 3 without any added mineral or other fillers should be at least 80% by volume.
  • PE ie LDPE, LLDPE, MDPE, HDPE varietal or even as a mixture or in the form of co-polymers or even multilayer can be used.
  • the thickness of the second laminate layer 3 is typically between 20 and 200 ⁇ m.
  • the remainder remaining will consist of a compatible polyolefin material as described above.
  • the first laminate layer 2 is produced by coextrusion, because this allows a particularly simple, cost-effective production.
  • the known blown film or flat film extrusion process is preferably used.
  • the first laminate layer 2 is stretched after co-extrusion exclusively in the machine direction (usually the longitudinal or extrusion direction).
  • the degree of stretching is preferably at least 4: 1 in the machine direction. Stretching can be done in-line (ie immediately after co-extrusion) or off-line (ie at a later time after co-extrusion). Unidirectional stretching can be performed much easier and less costly than bidirectional stretching, which can reduce manufacturing costs.
  • the extrusion gap in the blown film 1, 5 to 2.5 mm or the gap of the extrusion die is significantly larger than the final thickness of the extruded foil (typically between 10 to 200 ⁇ ).
  • the extruded melt is stretched at temperatures well above the melting point of the extruded polymer, thereby obtaining the final thickness.
  • the melt is e.g. typically in the transverse direction by a factor of about 2 to 3 (the so-called blow-up ratio) and in the longitudinal direction by a factor of 1:10 to 1: 100 (the so-called draw-off ratio).
  • this stretching in extrusion can not be compared with the stretching of a plastic film, since the stretching is usually carried out at temperatures just below the melting point of the polymer in order to align the disordered polymers and the semi-crystalline regions by stretching in the stretching direction.
  • the advantage of the atypical asymmetrical structure of the first laminate layer 2 lies above all in the fact that only a single expensive and less rigid connecting layer 5 is required.
  • the cost of the first laminate layer 2 can be reduced and a stiffer first laminate layer 2 can be achieved.
  • the higher stiffness is particularly advantageous when using the packaging laminate 1 for producing a bag.
  • first laminate layer 2 results from the stretching. This results in a high transparency, especially the substrate layer 4.
  • the stretching of the barrier layer is achieved in comparison to the unstretched similar barrier polymer about three to four times increased barrier values, whereby less expensive barrier polymer can be used with the same barrier effect. As a result, the cost of the first laminate layer 2 can be significantly reduced.
  • the first laminate layer 2 is produced by the blown film extrusion process because this results in less edge portion due to production, which leads to lower costs of the packaging laminate 1, especially in the case of the more expensive barrier polymers.
  • blown film extrusion even more viscous HDPE materials with a MFI (Mass Flow Index) of less than 3 can be used.
  • Such HDPE materials have a higher molecular weight and better mechanical properties, which is favorable for use in a packaging laminate 1.
  • such a material would break particularly easily in the longitudinal direction and it comes even to undesirable splitting in the longitudinal direction. This undesirable property can be eliminated by incorporating the HDPE material having an MFI of less than 3 into a first laminate layer 2 as described and even achieving uniform tearing in both directions.
  • This effect occurs both in the case of an asymmetrical Construction of the first laminate layer 2, as well as in a symmetrical structure of the first laminate layer 2 a. This observed effect is demonstrated for a first laminate layer 2 as a barrier film by the following examples in Table 1.
  • tensile strength in the longitudinal direction (MD) and transverse direction (TD) is given in N / 15 mm and measured according to ASTM D882
  • the elongation at break (MD) and transverse direction (TD) are given in% and measured according to ASTM D882
  • the tear propagation resistance in longitudinal direction (MD) and transverse direction (TD) in N and measured according to DIN EN ISO 6383-1.
  • the thickness is the total thickness of the respective film and given in ⁇ .
  • Sheet A in Table 1 is a 10% by volume MDO HDPE monofilm LDPE.
  • Film A is constructed as a five-layer coextrusion film with 10% by volume of mLLDPE in all five layers of the same thickness (composition 1/1/1/1).
  • the stretch ratio in the machine direction is 6: 1.
  • Such a film 1 tends to splice in the longitudinal direction, which is particularly recognizable by the very low tensile strength and elongation at break in the transverse direction.
  • the tear strength in the longitudinal direction is also significantly lower than in the other comparative films in Table 1, which is likewise an indication of the splice tendency in the longitudinal direction.
  • Film B is also a five-layer coextrudate with the film structure 95% HDPE + 5% LLDPE / 100% HDPE / 60% HDPE + 40% LLDPE / 100% HDPE / 100% HDPE.
  • the stretch ratio in the machine direction is 6: 1. Consequently, in the film B, a tough component (LLDPE) in higher proportions (40%) was admixed in at least one layer in order to reduce the tendency to splice. This is evident from the higher values of the transverse tensile strength, the transverse elongation at break (TD) and the tear propagation resistance in the longitudinal direction, compared to film A.
  • LLDPE tough component
  • the barrier film C is a five-layer coextrudate with the film structure 95% HDPE + 5% LLDPE / 100% HDPE / 60% HDPE + 40% LLDPE / tie layer 5 / EVOH barrier layer 6.
  • the stretch ratio of the coextruded barrier film 3 in the machine direction is 5: 1.
  • the substrate layer 4 is in three layers (layer thicknesses 4 ⁇ / 4 ⁇ / 8 ⁇ ) with a HDPE content of -78% vol% in the substrate layer 4.
  • the compound layer 5 is in the barrier film C 2 ⁇ , ie 10% of the total thickness, and the barrier layer 5 also 2 ⁇ , so 10% of the total thickness. This results in a 2/2/4/1/1 structure of the barrier film C.
  • the barrier film C receives sufficient toughness to significantly reduce the splice tendency in the longitudinal direction. This is evident from the significantly higher values of transverse elongation at break (TD) and tear strength in the longitudinal direction.
  • the tensile strength in the transverse direction is comparable to the film B.
  • the barrier film D is a five-layer coextrudate with the film structure 95% HDPE + 5% LLDPE / 100% HDPE / 100% HDPE / tie layer 5 / EVOH Barrier Layer 6.
  • the low LLDPE content in the outermost layer serves primarily to improve the surface properties of the film Barrier film D to modify to improve the processing properties.
  • the stretch ratio in the machine direction is again 5: 1.
  • the substrate layer 4 is in three layers (layer thicknesses 4 ⁇ / 4 ⁇ / 8 ⁇ ) with a HDPE content of -97% Vol% in the substrate layer 4.
  • the compound layer 5 is in the barrier film D 2 ⁇ , ie 10% of Total thickness, and the barrier layer 5 also 2 ⁇ , ie 10% of the total thickness. This results in a 2/2/4/1/1 structure of the barrier film D. In the barrier film D, the tear propagation behavior in the longitudinal direction and transverse direction is even particularly uniform.
  • Table 1 describes only asymmetric film constructions of the MDO barrier film 11.
  • inventive barrier film 1 1 for the first laminate layer 2 in use as inventive barrier film 1 1 but also symmetrical structures in question (as shown in Figure 5), for example in the form of substrate layer 4 of 100 vol% HDPE / compound layer 4 / EVOH barrier layer 6 / compound layer. 4 / Substrate layer 5 of 100 vol% HDPE.
  • a low mLLDPE or LLDPE content for example, 5 to 10% by volume
  • Such a first laminate layer 2 alone as a barrier film 1 1 is also considered inventive and is characterized in particular by at least one substrate layer 4, which has a HDPE content of at least 60% by volume, preferably at least 80% by volume, and which is connected via a connecting layer 5 as described above with a barrier layer 6 as described above.
  • the substrate layer 4 can also be constructed in multiple layers.
  • the barrier layer 6 may be connected to a further substrate layer 4 as described above for a symmetrical structure by means of a further connection layer 5 as described above.
  • Such a barrier film 11 is produced by co-extrusion and subsequent stretching in the machine direction. The degree of stretching is preferably at least 4: 1 in the machine direction. Stretching can be done inline (ie immediately after co-extrusion) or off-line (ie at a later time after co-extrusion).
  • the stretched first laminate layer 2 and the second laminate layer 3 are joined together, preferably by extrusion lamination, extrusion coating or adhesive lamination, wherein the second laminate layer 3 is joined to the barrier layer 6 of the first laminate layer 2.
  • the second laminate layer 3 is extruded onto the barrier layer 6 of the first laminate layer 2, whereby a bonding agent should preferably also be provided therebetween.
  • the second laminate layer 3 is connected to the barrier layer 6 by means of a suitable laminating adhesive, for example based on polyurethane adhesives or else polyolefin copolymers in the extrusion lamination.
  • the thickness of the laminating adhesive is preferably 2 to 5 g / m 2 in the case of conventional adhesives based on polyurethane or 5 to 20 g / m 2 in the extrusion lamination.
  • suitable second laminate layers 3 that also the entire packaging laminate 1 assumes the tear properties of the first laminate layer 2, i. that the packaging laminate 1 is equally easy to tear in both directions by hand.
  • the first laminate layer 2 thus imprints the tearing properties on the packaging laminate 1.
  • the second laminate layer 3 preferably forms a sealing layer 7, which in a packaging from the packaging laminate 1 generally faces the packaged product.
  • the packaging is produced by cutting, folding and thermosealing the packaging laminate 1. Possible packages are pouches, bags, sacks, etc.
  • the second laminate layer 3 can also have a multilayered construction, for example extruded or coextruded, as indicated in FIG. 2 and described in detail below. However, the second laminate layer 3 can also be provided with a barrier function and can also be stretched, as indicated in FIG. 4 and described in detail below.
  • the first laminate layer 2 is joined on the side of the barrier layer 6 to the second laminate layer 3 and on the side of the substrate layer 4 with a further laminate layer 10, here a third laminate layer 8.
  • the third laminate layer 8 is preferably a single- or multi-layered polymer film, for example a predominantly PE (at least 80% by volume PE) film, as described with respect to the second laminate layer 3.
  • the third laminate layer 8 may again be either extrusion-coated or adhesive-laminated onto the first laminate layer 2, as explained with reference to the sealing layer 7 in FIG.
  • Such a packaging laminate 1 according to Figure 2 can be used for example for the production of tubes.
  • the thickness of the second laminate layer 3 and the third laminate layer 8 is typically in the range of 150 ⁇ .
  • the second laminate layer 3 can also have a multilayer structure, here for example with two layers 7 a, 7 b, which form the sealing layer 7.
  • Such a structure of the second laminate layer 3 can of course also be provided in an embodiment according to FIG.
  • the barrier layer 6 can also be subjected to a pretreatment of the surface to be printed, for example a corona or flame treatment, in order to improve the adhesion of the print layer to the barrier layer 6.
  • the substrate layer 4 may also be printed, metallized or printed, both on the side facing the barrier layer 6 and on the other side, optionally again after a surface treatment.
  • common printing methods can be used, for example, a gravure printing method or a Flexod jerking method.
  • the third laminate layer 8 could, in addition to or as an alternative to the first laminate layer 2, be printed, metallized or coated on one or both sides.
  • the barrier layer 6 of the first laminate layer 2 is metallized, preferably with aluminum, to increase the barrier effect.
  • the third laminate layer 8 could be printed on the outside.
  • a further embodiment of a packaging laminate 1 according to the invention is described, which can preferably be used for the production of tubes used.
  • the first laminate layer 2 is connected to the barrier layer 6 as in the example of FIG. 1 with the second laminate layer 3.
  • the first laminate layer 2 is at the Substrate layer 4 with a further laminate layer 10, here a fourth laminate layer 2 ', connected, which has the same structure as the first laminate layer 2 and which is also unidirectionally stretched.
  • the fourth laminate layer 2 'thus again comprises a substrate layer 4', which is connected to a connection layer 5 'with a barrier layer 6'.
  • the barrier layer 6 'of the fourth laminate layer 2' is connected to the substrate layer 4 of the first laminate layer 2, preferably with a suitable laminating adhesive as described above.
  • the fourth laminate layer 2 ' is constructed and assembled as already described above.
  • the fourth laminate layer 2 ' consists primarily of PE materials with at least 80% by volume PE fraction. However, the thicknesses and the exact compositions or materials of the individual layers of the first laminate layer 2 and of the fourth laminate layer 2 'need not be overstated.
  • the fourth laminate layer 2 ' may be printed, metallized or coated on the substrate layer 4' and / or on the barrier layer 6 ', in addition to or as an alternative to the first laminate layer 2.
  • the fourth laminate layer 2 ' is printed, preferably at its barrier layer 6', and the first laminate layer 2 metallized, preferably on the barrier layer 6 or substrate layer 4.
  • the barrier effect of the packaging laminate 1 can be increased.
  • the second laminate layer 3 is again embodied as multi-layered and comprises a substrate layer 4 ", barrier layer 6" and a bonding layer 5 ", similar to the first laminate layer 2.
  • the second laminate layer 3 additionally comprises a sealing layer 7 in this embodiment.
  • the sealing layer 7 is preferably made of a PE material, such as, for example, mLLDPE, LLDPE, or from another suitable thermoplastic, for example polypropylene (PP), but this second laminate layer 3 with the sealing layer 7 still applies that it consists of at least 80% by volume PE
  • PP polypropylene
  • the second laminate layer 3 of Figure 4 is coextruded as the first laminate layer 2 and as described above.
  • the sealing layer 7 is thus integrated in a multi-layered, stretched barrier film, which is constructed similarly to the first laminate layer 2.
  • this second laminate layer 3 has substantially the same tear properties as the first laminate layer 2.
  • the unidirectionally stretched first laminate layer 2 and the unidirectionally stretched wide laminate layer 3 are joined together at the abutting barrier layers 6, 6 ", preferably by adhesive lamination using an adhesive layer 9.
  • a suitable laminating adhesive is for example a polyurethane or polyurethane based adhesive
  • the thickness of the laminating layer 9 is preferably 2 to 5 g / m 2 .
  • one (or more) of the layers of the packaging laminate 1 may be printed, metallized or coated.
  • a further laminate layer 10 (for example a third laminate layer 8 or fourth laminate layer 2 'as described above) could of course also be provided on the first laminate layer 2, as indicated in FIG.
  • the packaging laminate 1 thus has at least one asymmetrical, non-directionally stretched, first laminate layer 2 of at least 60% by volume HDPE with a substrate layer 4, a barrier layer 6 and a bonding layer 5 and a second laminate layer 3 connected therewith, which forms a sealing layer 7, with a PE content of at least 80% by volume.
  • a further single-layer or multi-layer laminate layer 10 eg, a third laminate layer 8 or fourth laminate layer 2 '
  • This further single-layer or multi-layer laminate layer 10 is thus connected to the substrate layer 4 of the first laminate layer 2.
  • the sealing layer 7 of the packaging laminate 1 advantageously faces the inside of the packaging.
  • the barrier effect of the packaging laminate 1 can be further increased in this way.
  • a barrier lacquer for example polyvinyl alcohol (PVOH)
  • PVH polyvinyl alcohol
  • paint layers can be applied very thinly, typically in the range of 0.5 to 2.0 g / m 2 , and thus do not affect the recycling friendliness of the packaging laminate 1.
  • each of the above-described layers in the first laminate layer 2, second laminate layer 3 or the further laminate layer 10 itself can again be constructed in multiple layers.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Laminated Bodies (AREA)
  • Wrappers (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

L'invention concerne un stratifié d'emballage recyclable, facilement déchirable, à effet barrière satisfaisant, possédant une première couche de stratifié (2) et une seconde couche de stratifié (3), la première couche de stratifié (2) étant un composite co-extrudé et étiré dans le sens machine, composé d'une couche de substrat (4) possédant une proportion de HDPE d'au moins 60 % en volume, d'une couche de liaison (5) et d'une couche barrière (6) composée d'un polymère barrière, de préférence d'un polyamide ou d'un copolymère éthylène-alcool vinylique, possédant une épaisseur de 20 % au maximum de l'épaisseur totale de la première couche de stratifié, la couche de liaison (5) étant disposée entre la couche de substrat (4) et la couche barrière (6) et la première couche de stratifié (2) étant reliée à la seconde couche de stratifié (3) au niveau de sa couche barrière (6).
EP18719175.4A 2017-05-05 2018-04-24 Stratifié d'emballage recyclable, facilement déchirable, à effet barrière satisfaisant, et son procédé de fabrication Pending EP3619042A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT503722017 2017-05-05
ATA50622/2017A AT519866B1 (de) 2017-05-05 2017-07-25 Recyclingfreundliches, einfach reißbares Verpackungslaminat mit guter Barrierewirkung und Verfahren zu dessen Herstellung
PCT/EP2018/060462 WO2018202479A1 (fr) 2017-05-05 2018-04-24 Stratifié d'emballage recyclable, facilement déchirable, à effet barrière satisfaisant, et son procédé de fabrication

Publications (1)

Publication Number Publication Date
EP3619042A1 true EP3619042A1 (fr) 2020-03-11

Family

ID=64132008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18719175.4A Pending EP3619042A1 (fr) 2017-05-05 2018-04-24 Stratifié d'emballage recyclable, facilement déchirable, à effet barrière satisfaisant, et son procédé de fabrication

Country Status (8)

Country Link
US (3) US20200122439A1 (fr)
EP (1) EP3619042A1 (fr)
JP (1) JP7145879B2 (fr)
CN (1) CN110582399B (fr)
AT (1) AT519866B1 (fr)
CA (1) CA3062387A1 (fr)
MX (1) MX2019013141A (fr)
RU (1) RU2764100C2 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020038579A1 (fr) * 2018-08-23 2020-02-27 Constantia Pirk Gmbh & Co. Kg Stratifié d'emballage recyclable, facilement déchirable, à effet barrière satisfaisant, et son procédé de fabrication
WO2020136674A1 (fr) * 2018-12-26 2020-07-02 Huhtamaki Ppl Limited Stratifié recyclable
AT522884B1 (de) 2020-02-18 2021-03-15 Constantia Pirk Gmbh & Co Kg Recyclebare Papierverpackung mit hoher Barriere gegen Wasserdampf und Sauerstoff
CN111497354B (zh) * 2020-04-21 2022-06-21 上海唐科新材料科技有限公司 一种液体食品包装膜及其加工工艺
US11987026B2 (en) 2020-05-27 2024-05-21 Proampac Holdings Inc. Recyclable laminated polyolefin-based film structures
MX2022014257A (es) 2020-05-27 2022-12-07 Proampac Holdings Inc Estructuras con una pelicula a base de poliolefina laminada reciclable.
CA3183380A1 (fr) 2020-07-24 2022-01-27 Alexander David Jones Films d'emballage a base de polyethylene, recyclables et a transparence elevee
US20220134719A1 (en) * 2020-10-29 2022-05-05 Fres-Co System Usa, Inc. Mechanically recyclable barrier laminates for making flexible packaging and methods of recycling flexible packages formed of recyclable barrier laminates
EP4015218A1 (fr) 2020-12-17 2022-06-22 Flexopack S.A. Film mince pour cassettes de conditionnement de déchets
US20230234347A1 (en) * 2022-01-13 2023-07-27 Sonoco Development, Inc. Recyclable resealable laminate structure
CN114407460B (zh) * 2022-01-28 2023-07-04 佛山市南海利达印刷包装有限公司 高阻隔薄膜及其生产方法
WO2023190907A1 (fr) * 2022-03-30 2023-10-05 大日本印刷株式会社 Matériau de base étiré, matériau de base d'impression, film d'étanchéité barrière, stratifié et sac d'emballage
EP4275863A1 (fr) * 2022-05-10 2023-11-15 Huhtamaki Flexible Packaging Germany GmbH & Co. KG Procédé de fabrication d'un stratifié tubulaire, stratifié tubulaire et emballage de tube
WO2024013378A1 (fr) * 2022-07-15 2024-01-18 Repsol, S.A. Film multicouche à orientation uniaxiale
KR20240017193A (ko) * 2022-07-28 2024-02-07 에스케이이노베이션 주식회사 개봉성이 확보된 폴리에틸렌계 적층 포장재 및 이의 제조방법
WO2024029200A1 (fr) * 2022-08-05 2024-02-08 タキロンシーアイ株式会社 Film étiré et son procédé de production
DE102023103371A1 (de) * 2023-02-13 2024-08-14 Constantia Pirk Gmbh & Co. Kg Mehrlagiges Kunststofflaminat und Verfahren zu deren Herstellung

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4708705A (en) * 1984-02-09 1987-11-24 Aubry Paul E Reinforced plastic bag
CA1308012C (fr) * 1986-01-17 1992-09-29 Robert Wayne Thies Pellicule de polyolefine multicouche a capacite de contraction elevee mais a faible retrait
WO1991011317A1 (fr) * 1990-01-30 1991-08-08 Nippon Petrochemicals Co., Ltd. Materiau d'emballage multicouche a orientation monoaxiale
JPH06262737A (ja) * 1993-03-15 1994-09-20 Nippon Petrochem Co Ltd 防湿性に優れる直線カット性包装材
DE202004016420U1 (de) 2004-05-17 2005-03-24 Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Standbeutel mit optimiertem Aufreißverhalten
SE0402197D0 (sv) * 2004-09-10 2004-09-10 Tetra Laval Holdings & Finance A polymer film, a packaging laminate comprising the polymer film, a packaging container formed from the packaging laminate and a process for the production of the polymer film
US8642144B2 (en) * 2008-05-28 2014-02-04 Bemis Company, Inc. Innerliner with nylon skin layer
WO2010001471A1 (fr) * 2008-07-02 2010-01-07 日本合成化学工業株式会社 Procédé de production d'un matériau composite d'evoh
HRP20220369T1 (hr) * 2014-03-21 2022-05-27 Loparex Germany Gmbh & Co. Kg Folija za pakiranje
US10465053B2 (en) 2014-05-15 2019-11-05 Dow Global Technologies Llc Barrier film, methods of manufacture thereof and articles comprising the same
CA2919466C (fr) * 2015-02-10 2023-06-27 Nova Chemicals Corporation Pochette verticale
US20160339663A1 (en) * 2015-02-10 2016-11-24 Nova Chemicals (International) S.A. Film structures for use in recylcable packaging
AT15085U1 (de) * 2015-03-27 2016-12-15 Constantia Hueck Folien Gmbh & Co Kg Bedruckte Polyethylen-Folie und Folienlaminat mit einer solchen Folie
MX2018001970A (es) * 2015-08-31 2018-06-19 Dow Global Technologies Llc Resinas para usarse como capa de union en estructura de multiples capas y estructuras de multiples capas que comprenden las mismas.
US10253146B2 (en) * 2015-10-16 2019-04-09 Board Of Trustees Of Michigan State University Thermoplastic polymeric nanocomposite films and related methods

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
BOKOBZA LILIANE: "Infrared Linear Dichroism for the Analysis of Molecular Orientation in Polymers and in Polymer Composites", POLYMERS, vol. 14, no. 6, 21 March 2022 (2022-03-21), pages 1257, XP055939319, DOI: 10.3390/polym14061257 *
See also references of WO2018202479A1 *
TIRTHA CHATTERJEE ET AL: "Machine direction orientation of high density polyethylene (HDPE): Barrier and optical properties", POLYMER, vol. 55, no. 16, 1 August 2014 (2014-08-01), GB, pages 4102 - 4115, XP055571515, ISSN: 0032-3861, DOI: 10.1016/j.polymer.2014.06.029 *

Also Published As

Publication number Publication date
CN110582399A (zh) 2019-12-17
MX2019013141A (es) 2019-12-16
BR112019022614A2 (pt) 2020-05-19
US20240359443A1 (en) 2024-10-31
US20200122439A1 (en) 2020-04-23
JP7145879B2 (ja) 2022-10-03
RU2019139383A (ru) 2021-06-08
RU2764100C2 (ru) 2022-01-13
RU2019139383A3 (fr) 2021-06-30
CN110582399B (zh) 2022-04-01
AT519866B1 (de) 2018-11-15
AT519866A4 (de) 2018-11-15
CA3062387A1 (fr) 2019-11-04
US20240359442A1 (en) 2024-10-31
JP2020519487A (ja) 2020-07-02

Similar Documents

Publication Publication Date Title
AT519866B1 (de) Recyclingfreundliches, einfach reißbares Verpackungslaminat mit guter Barrierewirkung und Verfahren zu dessen Herstellung
WO2018202479A1 (fr) Stratifié d'emballage recyclable, facilement déchirable, à effet barrière satisfaisant, et son procédé de fabrication
EP1885558B2 (fr) Feuille-barriere multicouche coextrudee comportant au moins une couche de feuille a base de copolymere ethylene-alcool vinylique (evoh), son procede de production, et son utilisation
EP3600889B1 (fr) Laminé d'emballage recyclable ayant une résistance à la chaleur améliorée pendant le scellage
EP4076944B1 (fr) Emballage en papier recyclable formant une barrière efficace contre la vapeur d'eau et l'oxygène
EP3880473B1 (fr) Stratifié d'emballage recyclable à effet barrière satisfaisant et à faible densité et son procédé de fabrication
DE102018132333A1 (de) Kunststofffolienverbund, Folienverpackung und Verfahren zur Herstellung von Verpackungsgebinden
EP1306209B1 (fr) Film multicouche produit par co-extrusion
EP3840951B1 (fr) Stratifié d'emballage recyclable, facilement déchirable, à effet barrière satisfaisant, et son procédé de fabrication
WO2004050353A2 (fr) Feuille a orientation biaxiale presentant une couche de copolymere ethylene/alcool vinylique (evoh)
EP2094465B1 (fr) Procédé de production d'un laminé multicouche, et laminé multicouche ainsi obtenu
EP2528737A1 (fr) Feuille de polyoléfines matte présentant des propriétés de pelabilité
EP0842044A1 (fr) Films composites a couches de scellement en polyethylene a orientation biaxiale
EP3995307A1 (fr) Feuille polyéthylène
EP1614530B1 (fr) Feuille composite et emballages contenant cette feuille
DE10254731B4 (de) Transparente biaxial orientierte Polyolefinfolie mit verbesserter Sauerstoffbarriere
DE102006026306A1 (de) Deckelverbundfolie, Verfahren zu deren Herstellung und Verwendung bei einer Verpackungseinheit
DE102023104566A1 (de) Hochbarriere-Verpackungslaminat mit verbesserter Maschinenverarbeitbarkeit
DE102015100106A1 (de) Laminat, insbesondere zur Herstellung von Deckelmaterial, Verfahren zu dessen Herstellung sowie Deckelmaterial aus einem solchen Laminat
WO2024126657A1 (fr) Stratifié monomatière à résistance à l'éclatement améliorée
EP4201670A1 (fr) Feuille composite bloquée multicouche
WO2024115618A1 (fr) Stratifié, en particulier pour produire un emballage, utilisation du stratifié pour produire un emballage, emballage produit à partir du stratifié, et procédé de production du stratifié

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: 20191023

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

DAV Request for validation of the european patent (deleted)
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: EXAMINATION IS IN PROGRESS

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20201214

TPAC Observations filed by third parties

Free format text: ORIGINAL CODE: EPIDOSNTIPA