EP4334223A1 - Utilisation d'un mélange polymère pour la fabrication d'un film de couverture pour un emballage-coque - Google Patents

Utilisation d'un mélange polymère pour la fabrication d'un film de couverture pour un emballage-coque

Info

Publication number
EP4334223A1
EP4334223A1 EP22746941.8A EP22746941A EP4334223A1 EP 4334223 A1 EP4334223 A1 EP 4334223A1 EP 22746941 A EP22746941 A EP 22746941A EP 4334223 A1 EP4334223 A1 EP 4334223A1
Authority
EP
European Patent Office
Prior art keywords
weight
layer
polymer mixture
component
proportion
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
EP22746941.8A
Other languages
German (de)
English (en)
Inventor
Michael Nedelcu
Tobias Maienfisch
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.)
Perlen Packaging AG
Original Assignee
Perlen Packaging 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 Perlen Packaging AG filed Critical Perlen Packaging AG
Publication of EP4334223A1 publication Critical patent/EP4334223A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
    • B65D75/30—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
    • B65D75/32—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents
    • B65D75/36—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents one sheet or blank being recessed and the other formed of relatively stiff flat sheet material, e.g. blister packages, the recess or recesses being preformed
    • B65D75/367—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents one sheet or blank being recessed and the other formed of relatively stiff flat sheet material, e.g. blister packages, the recess or recesses being preformed and forming several compartments
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • 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
    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions 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 a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions 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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions 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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • 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
    • B32B2270/00—Resin or rubber layer containing a blend of at least two different 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
    • 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
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/414—Translucent
    • 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
    • B32B2435/00—Closures, end caps, stoppers
    • B32B2435/02—Closures, end caps, stoppers for containers
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • 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
    • C08J2327/00—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 a halogen; Derivatives of such polymers
    • C08J2327/02—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 a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—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 a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/06—Homopolymers or copolymers of vinyl chloride
    • 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
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/08—Copolymers of ethene
    • 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
    • C08J2445/00—Characterised by the use of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Derivatives of such polymers

Definitions

  • the invention relates to the use of a polymer mixture for the production of a pierceable lid film for a blister pack according to the preamble of patent claim 1, and a lid film for a blister pack according to the preamble of claim 18,
  • lid foils have the particular disadvantage that the polymer mixtures used for this purpose lead to foils that cannot be pushed through due to their physical strength and that it is therefore necessary to add considerable amounts of inorganic fillers to the polymer mixtures used or to weaken them physically by methods such as laser scribing , in order to obtain a weakening of the fully polymerized film and thus its ability to be pushed through.
  • the inorganic fillers added lead to an undesirable opacity of the lidding films, which also has a disadvantageous effect on the recyclability of the lidding films.
  • WO 2004/018202 A1 discloses various top layers B and C of a three-layer film ABC with a mixing ratio of 95% polypropylene and a cycloolefinic copolymer, i.e. with a mixing ratio of 1:19. Because of its high proportion of polypropylene, such a film has too high a physical strength, so that it is primarily not possible to obtain films that can be pushed through.
  • the invention aims to remedy the situation.
  • the invention is based on the object of creating a polymer mixture which is suitable for producing a lid film for a blister pack and leads to good transparency or translucency, optimum push-through properties and improved recyclability of the lid film obtained even without the addition of inorganic fillers.
  • the invention solves the problem with the use of a polymer mixture, which has the features according to claim 1, and a lid film, which has the features of claim 13.
  • the toughness and strength of the lid film are different in machine direction MD and transverse direction TD;
  • the advantage lies in the fact that the transparent lid film according to the invention remains intact and does not have the risk of leakage ("blue water test" by the pharmacist);
  • component K2 consists of polyvinyl chloride (PVC) and the weight ratio between component K1 and component K2 is in the range from 1:7 to 1:11, preferably in the range from 1:8 to 1:10.
  • PVC polyvinyl chloride
  • component K2 consists of polypropylene (PP) and the weight ratio between component K1 and component K2 is in the range from 1:5 to 1:9, preferably in the range from 1:6 to 1:8.
  • the polymer mixture contains a maximum proportion of inorganic fillers of 5% by weight, preferably a maximum of 1% by weight.
  • component K1 contains a cycloolefinic copolymer (COC) and a cycloolefinic polymer (COP) and the weight ratio between COC and COP is in the range from 3:1 to 1.4:1, preferably in the range from 2.4: up to 1.7:1 ,
  • the proportion by weight of the cycloolefinic copolymer in the total polymer mixture is expediently at least 9% by weight, preferably at least 13% by weight.
  • the proportion by weight of the cycloolefinic copolymer in the total polymer mixture is expediently at most 14.5% by weight, preferably at most 11.0% by weight.
  • the proportion by weight of the polyvinyl chloride in the total polymer mixture is expediently at least 70% by weight, preferably at least 79% by weight.
  • the proportion by weight of the polyvinyl chloride in the total polymer mixture is expediently at most 80% by weight, preferably at most 75% by weight.
  • the proportion by weight of the polypropylene in the total polymer mixture is expediently at least 75% by weight, preferably at least 80% by weight.
  • the proportion by weight of the polypropylene in the total polymer mixture is expediently at most 80% by weight, preferably at most 75% by weight.
  • the proportion by weight of the high-density polyethylene (HDPE) in the total polymer mixture is expediently at least 72% by weight, preferably at least 78% by weight.
  • the proportion by weight of the high-density polyethylene (HDPE) in the total polymer mixture is expediently at most 88% by weight, preferably at most 84% by weight.
  • the cycloolefinic copolymer has a weight-average molecular weight of at least 100000 g/mol, preferably at least 150000 g/mol, measured by gel permeation chromatography.
  • the cycloolefinic copolymer expediently has a weight-average molecular weight of at most 200,000 g/mol, preferably at most 160,000 g/mol, measured by gel permeation chromatography.
  • the invention also relates to a cover film for a blister pack, the cover film comprising at least one layer which consists of a polymer mixture according to the invention.
  • the cover film can be constructed in one layer, preferably with a thickness in the range from 50 to 100 ⁇ m.
  • the cover film can also consist of at least two layers of different composition, for example a first layer consisting of a polymer mixture according to the invention and a second layer with a different composition than the first layer as the outer layer.
  • the second layer expediently consists of at least 90% by weight, preferably at least 95% by weight, of polypropylene.
  • the cover film comprises a third layer with a different composition than the first layer as a sealing layer and which is applied to the second layer on the side of the first layer opposite to the latter.
  • the third layer expediently consists of at least 85% by weight, preferably at least 90% by weight, of polypropylene.
  • the thickness of the individual layers is preferably in the range of 30-100 ⁇ m.
  • the lid film expediently has a metal content of at most 0.10% by weight, preferably at most 0.01% by weight.
  • the cover film is transparent as a whole.
  • Single-ply lidding films according to the invention can advantageously be produced by means of a calendering process.
  • Multi-layer lidding films according to the invention can advantageously be produced by means of a coextrusion process.
  • the invention also relates to a press-through pack with a blister base part E and a lid foil according to the invention sealed against the blister base part.
  • FIG. 1 shows a single-layer lidding film according to the invention
  • FIG. 2 shows the schematic layer structure of a three-layer lidding film according to the invention.
  • Figure 3 shows a press-through pack with a blister base part and a lid foil sealed against the blister base part according to the invention.
  • the single-layer cover layer shown in FIG. 1 consists solely of a main blend layer B with a thickness of 50 to 100 gm and consists of the polymer mixture according to the invention.
  • the 3-ply cover layer shown in FIG. 2 consists of a main blend layer B according to the polymer mixture according to the invention, to which an outer layer C is applied on top and a bonding sealing layer A is applied on the bottom.
  • the blister pack shown schematically in FIG. 3 has a blister base part E and a lid foil D sealed against the blister base part E according to the invention.
  • Example 1 single-layer lidding film ⁇
  • the mixture according to Example 1a) was homogenized at a mass temperature of 185° C. using a planar roll extruder and then calendered on a melt calender at a mass temperature between 185° C. and 20° C. to give two films of different thicknesses of 100 ⁇ m and 60 ⁇ m.
  • Example 1a The mixture according to Example 1a) was homogenized at a melt temperature of 186° C. using a planetary roller extruder and then calendered on a melt calender at a melt temperature of between 186° C. and 199° C. to give a film with a thickness of 80 ⁇ m.
  • the following physico-mechanical mean values were measured for the calendered film:
  • A/B/B layer structure was achieved with a 10 ⁇ m thick A layer and two B layers (main layers) of 45 ⁇ m and 10 ⁇ m thickness, in which the B layers represent the push-through layers on which the invention is based and the A layer is an independent sealing layer.
  • the cyclic olefin on which the cyclic olefin copolymer is based is preferably norbornene.
  • the acyclic olefin is preferably selected from the group consisting of ethylene, propylene, butylene or mixtures thereof.
  • the cyclic olefin copolymer consisting of a copolymer of norbornene and ethylene.
  • the cyclic olefin copolymer may suitably have a heat deflection temperature (HDT/B) of at least 50°C, preferably at least 60°C and more preferably at least 75°C.
  • HDT/B heat deflection temperature
  • the cyclic olefin copolymer can specifically have a heat deflection temperature (HDT/B) of at most 200°C, preferably at most 100°C and particularly preferably at most 80°C.
  • HDT/B heat deflection temperature
  • the melting temperature of the olefin cyclic copolymer may suitably be at least 190°C, preferably at least 230°C.
  • the melting temperature of the cyclic olefin copolymer may suitably be at most 320°C, more preferably at most 250°C.
  • the glass transition temperature of the cyclic olefin copolymer is suitably in the range of 30° to 200°.
  • the molecular weight of the cyclic olefin copolymer is suitably higher than 50 ⁇ 00, preferably higher than 100 ⁇ 00.
  • the molecular weight of the cyclic olefin copolymer is suitably lower than 180 ⁇ 00, preferably lower than 150 ⁇ 00.
  • the cyclic oxygenated copolymer may have an amorphous structure.
  • the cyclic OSefin copolymer suitably has a water vapor transmission rate WVTR ⁇ 0.5 g mm m-2 day-1 and preferably ⁇ 0.3 g mm m-2 day-1 measured at 75% relative humidity difference at 40°C.
  • the cyclic olefin copolymer desirably has a water absorption after immersion in water for 24 hours at 23°C of less than 0.020%, preferably less than 0.012%.
  • the polyvinyl chloride (PVC) preferably has a K value of at least 55 and at most 65.
  • the polyvinyl chloride (PVC) can be a polyvinyl chloride copolymer or a polyvinyl chloride terpolymer.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Wrappers (AREA)

Abstract

L'invention concerne l'utilisation d'un mélange polymère pour la fabrication d'un film de couverture transparent ou translucide à déchirement par pression pour un emballage-coque, le mélange polymère comprenant A) un premier composant K1 qui contient un copolymère d'oléfine cyclique (COC) et/ou un polymère d'oléfine cyclique (COP), et B) un deuxième composant K2, qui contient principalement soit un polypropylène (PP), soit un polychlorure de vinyle (PVC), soit un polyéthylène haute densité (HDPE), soit des mélanges de ceux-ci, le rapport en poids entre le composant K1 et le composant K2 étant dans la plage de 1:5 à 1:12.
EP22746941.8A 2021-07-07 2022-07-05 Utilisation d'un mélange polymère pour la fabrication d'un film de couverture pour un emballage-coque Pending EP4334223A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP21184301.6A EP4116219A1 (fr) 2021-07-07 2021-07-07 Utilisation d'un mélange de polymères pour la fabrication d'une feuille de recouvrement pour un emballage blister
PCT/CH2022/050015 WO2023279215A1 (fr) 2021-07-07 2022-07-05 Utilisation d'un mélange polymère pour la fabrication d'un film de couverture pour un emballage-coque

Publications (1)

Publication Number Publication Date
EP4334223A1 true EP4334223A1 (fr) 2024-03-13

Family

ID=76829476

Family Applications (2)

Application Number Title Priority Date Filing Date
EP21184301.6A Withdrawn EP4116219A1 (fr) 2021-07-07 2021-07-07 Utilisation d'un mélange de polymères pour la fabrication d'une feuille de recouvrement pour un emballage blister
EP22746941.8A Pending EP4334223A1 (fr) 2021-07-07 2022-07-05 Utilisation d'un mélange polymère pour la fabrication d'un film de couverture pour un emballage-coque

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP21184301.6A Withdrawn EP4116219A1 (fr) 2021-07-07 2021-07-07 Utilisation d'un mélange de polymères pour la fabrication d'une feuille de recouvrement pour un emballage blister

Country Status (2)

Country Link
EP (2) EP4116219A1 (fr)
WO (1) WO2023279215A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10238516A1 (de) * 2002-08-21 2004-03-04 Ticona Gmbh Polyolefin-Mehrschichtfolie, Verfahren zu ihrer Herstellung und ihre Verwendung
DE10242730A1 (de) * 2002-09-13 2004-03-25 Ticona Gmbh Thermoformbare Folie mit hoher Wärmeformbeständigkeit und Wasserdampfbarriere
JP6264092B2 (ja) * 2014-02-27 2018-01-24 日本ポリエチレン株式会社 易引裂性多層フィルム及び包装材
WO2017184584A1 (fr) * 2016-04-19 2017-10-26 Ascent Pharmaceuticals, Inc. Système d'emballage stable pour formes pharmaceutiques sensibles à l'humidité et à l'oxygène

Also Published As

Publication number Publication date
WO2023279215A1 (fr) 2023-01-12
EP4116219A1 (fr) 2023-01-11

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