WO2006058952A1 - Matiere multicouche et emballage de produit thermosoude constitue de celle-ci - Google Patents

Matiere multicouche et emballage de produit thermosoude constitue de celle-ci Download PDF

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Publication number
WO2006058952A1
WO2006058952A1 PCT/FI2004/000728 FI2004000728W WO2006058952A1 WO 2006058952 A1 WO2006058952 A1 WO 2006058952A1 FI 2004000728 W FI2004000728 W FI 2004000728W WO 2006058952 A1 WO2006058952 A1 WO 2006058952A1
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WO
WIPO (PCT)
Prior art keywords
heat
sealing
product package
layer
package according
Prior art date
Application number
PCT/FI2004/000728
Other languages
English (en)
Inventor
Tommi Lehikoinen
Liisa Lehtinen
Erkki Laiho
Markku Sainio
Risto Salminen
Tommi Tuominen
Iina HATANPÄÄ
Antti Savolainen
Jurkka Kuusipalo
Original Assignee
Walki Wisa Oy
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 Walki Wisa Oy filed Critical Walki Wisa Oy
Priority to PCT/FI2004/000728 priority Critical patent/WO2006058952A1/fr
Priority to EP04798337A priority patent/EP1824679A1/fr
Publication of WO2006058952A1 publication Critical patent/WO2006058952A1/fr

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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
    • B32B27/10—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 paper or cardboard
    • 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
    • B32B27/18—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
    • B32B27/34—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
    • 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
    • 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
    • B32B7/06—Interconnection of layers permitting easy separation
    • 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
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/20—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks doubled around contents and having their opposed free margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
    • 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
    • B32B2255/26—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
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/102—Oxide or hydroxide
    • 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
    • B32B2307/30—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
    • B32B2307/70—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
    • B32B2307/748—Releasability
    • 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
    • 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
    • B32B2439/40—Closed containers
    • B32B2439/62—Boxes, cartons, cases
    • 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

Definitions

  • Multi-layered material and heat-sealed product package comprised thereof
  • the invention relates to a multi-layered heat-sealable material for structures closed by sealing and capable of being opened from the sealing point by pulling free, such as for heat-sealable product packages, whose material comprises at least, in the order mentioned, a base layer, an inner polymeric support layer and an outer, polymer-based heat-sealing layer.
  • the invention relates to a heat-sealed product package in which the material in question is used.
  • lids fastened to the mouth of the package by heat-sealing are used, wherein the lids are to be pulled free when opening the package.
  • the lid In order to be workable the lid must come off essentially in one piece from the sealing point between the mouth of the package and the inner surface of the lid.
  • package lids such a material, which is heat-sealable and removable from the point of sealing, can also be used in packaging containers which are provided with a lid of the same or some other material, or in container packages formed by folding or bending the material, such as bag containers which are closed by heat-sealing the material against itself.
  • Package lids that are heat-sealable and removable in the manner described above by pulling free (peelable) are made especially of aluminium, but also in growing amounts of comparably more environmentally friendly polymer-coated papers and cardboards, and their main applications for use have been for consumer packages of liquid foodstuffs such as milk products, juices and water, edible fats and prepared food.
  • the container packages in which these lids are used have typically been of polymer such as polyolefin, polyester or polystyrene, or polymer-coated cardboard.
  • lids made of polymer-coated papers or cardboards are clarified for example in Finnish patent publications 97285 and 104887, Finnish patent application 93 AAl ⁇ and publication WO 95/34489.
  • multi-layered coating structures of these lids an attempt has been made to achieve not only the demanded heat-sealability and pulling-free ability, but additionally the air- and aroma lock required for preservation of the product as well as prevention of the curving of the lid that hinders the packing procedure.
  • binding agent layers may also have been needed to bind the polymer layers, which serve various purposes, to the base paper or cardboard as well as to one another.
  • lid materials In the development of lid materials an aim has also been to find polymer compositions for the innermost heat-sealing layer of the lid, wherein these compositions would seal as well as possible to the different surface materials used in container packages, such as different qualities of polymers, or uncoated cardboard, glass or even metal.
  • the object of the invention is therefore to form a simply-structured layered aluminium foil-free packaging material, which can be sealed together tightly and securely to polyethylene over a wide range of temperatures such that the adhesive strength of the seal allows the material to easily be pulled free in one piece without producing the fibre-like hairs due to tearing in the heat-sealed layer, which are a known commonly-occurring disadvantage of heat-sealing compositions.
  • the multi- layered structure of a material according to the invention comprises in a manner known per se a base layer, which basically gives the material its required stiffness, a heat-sealing layer, with which the required heat-sealing and pulling-free abilities of the material are achieved, and a polymeric support layer between these two that works as a bond between the heat-sealing layer and the base layer and with which the material gains its desired product-protecting steam-, gas- and aroma lock characteristics.
  • a material according to the invention is characterized in that in the heat-sealing layer are mixed polystyrene, acrylate copolymer, and a fine inorganic substance.
  • the said inorganic substance produces a cohesive strength in the seal, which loosens the tightness of the seal in a controlled manner.
  • a material according to the invention has been found to be capable of being heat- sealed in a peelable manner to other polymers as well, such as polypropylene and polyethylene terephthalate, as well as to itself when heat-sealing layers are brought together against one another.
  • the base layer of a material according to the invention is most preferably of a fibre- based material, such as paper or cardboard.
  • the material of the support layer between the base layer and the outer heat- sealing layer may be for example polyolefin, such as for example polypropylene, polyamide, polyester, such as for example polyethylene terephthalate (PET), or ethylene vinyl alcohol polymer (EVOH).
  • polyamide, PET or EVOH give the layer advantageous gas-lock characteristics.
  • the material may comprise between the base layer and the heat-sealing layer a polymeric multi-layered structure implementing various functions.
  • a suitable acrylate copolymer is for example ethyl methyl acrylate (EMA), and the fine inorganic substance evenly-dispersed in this layer can be for example talcum.
  • EMA ethyl methyl acrylate
  • possibilities can also include for example ethyl butyl acrylate (EBA) or ethyl ethyl acrylate (EEA).
  • EBA ethyl butyl acrylate
  • EOA ethyl ethyl acrylate
  • talcum there may be mentioned for example mica or calcium carbonate.
  • a composition that has been noticed to work well is one in which are mixed approximately 17.5 % polystyrene, approximately 52.5 % ethyl methyl acrylate, and approximately 30 % talcum.
  • the support layer and the heat-sealing layer are to be applied to the base layer, such as to packing paper or cardboard, simultaneously by coextrusion.
  • a heat-sealed product package according to the invention comprised of the packaging material described above, may be formed from a container that is closed by a lid of the material in question that is heat-sealed to the mouth of the container and removable from there by pulling it free.
  • a package according to the invention is in this case a cup- or box-model foodstuffs package whose container portion is either entirely of polymer material or cardboard having an inner surface with a polymer coating. In cardboard the outer surface may also be polymer-coated.
  • polyethylene is particularly suited, but a lid according to the invention also works well when sealed to other polyolefins, polystyrene or polyester, such as polyethylene terephthalate.
  • the invention comprises a heat-sealed product package which is formed of the layered packaging material described above by bending or folding and by heat-sealing the heat-sealing layers brought to be against the material to one another along the sealing line.
  • a heat-sealed product package which is formed of the layered packaging material described above by bending or folding and by heat-sealing the heat-sealing layers brought to be against the material to one another along the sealing line.
  • bag packages shut by heat-sealing and capable of being opened by a pulling directed to the sealing point.
  • Fig. 1 shows a box-model product package according to the invention, suitable for example for a package of edible fat or prepared food and provided with a lid that can be pulled free,
  • Fig. 2 is a section H-II of Fig. 1, showing a cross-section of the sealing point betweer* the mouth of the container and the lid,
  • Fig. 3 is a schematic cross-section IH-III of Fig. 2, showing the multi-layered structure of a material according to the invention which is used in the lid,
  • Fig. 4 shows a sheet of packaging material according to the invention, which can be folded and heat-sealed into a bag package, and
  • Fig. 5 shows a bag package obtained from the sheet of Fig. 4 in partially opened state.
  • a box-model package 1 as shown in Fig. 1 and 2 which typically forms for example consumer packages of edible fat 2, comprises a container portion 4 having an edge flange 3 as well as a lid 5 fastened to the edge flange by heat-sealing.
  • Package 1 can be opened by pulling on the extending lip 6 on the package edge 3 that is a part of the Hd 5.
  • the sealing point 7 gives way such that the lid 5 is removed in one piece from the mouth of the container 4.
  • the multi-layered lid 5 comprises in the embodiment shown a base layer 8, which is for example paper, against which is a polymeric support layer 9, to which, using the chosen polymer, an air- or aroma lock protecting the packaged product 2 can be achieved, and the polymer-based heat-sealing layer 10 forming the inner surface of the lid, from which the lid is sealed to the edge flange 3 of the container.
  • a base layer 8 which is for example paper
  • a polymeric support layer 9 to which, using the chosen polymer, an air- or aroma lock protecting the packaged product 2 can be achieved
  • the polymer-based heat-sealing layer 10 forming the inner surface of the lid, from which the lid is sealed to the edge flange 3 of the container.
  • the heat-sealing layer 10 is mixed polystyrene, aery late copolymer, and a fine inorganic substance.
  • the container portion 4 contained in the product 2 is in the exemplary embodiment packaging cardboard 11, whose inner surface has a layer of polymeric coating 12 that seal
  • Fig. 3 shows a schematic cross-section of a multi-layered packaging material according to the invention, such as is used in a product package lid 5 according to Fig. 1 and 2.
  • the base layer 8 of the material is paper, whose weight is for example 40-120 g/m 2 .
  • the base layer can also be cardboard having a weight for example 130-500 g/ m 2 .
  • a two-layer polymer coating 9, 10, of which the inner support layer 9, located against the base layer 8, is for example polypropylene.
  • the material of support layer 9 can be chosen for example some known air- sealant polymer, such as for example polyamide, PET or EVOH.
  • the weight of the support layer 9 is for example 10-30 g/m 2 .
  • the outer heat-sealing layer 10 is mixed 8-30 % polystyrene, 30-70 % acrylate copolymer, and 10-40 % a fine inorganic substance.
  • a suitable mixture composition is for example 17.5 % polystyrene, 52.5 % ethyl methyl acrylate, and 30 % fine talcum.
  • the weight of the heat-sealing layer 10 can be for example 5-20 g/m 2 .
  • the layer composition of a material according to the invention may differ from that presented above. It is also possible to add to the structure polymeric barrier layers as well as possible layers of a binding substance between the layers as needed.
  • a bag package 13 that can be effected as in Fig. 4 and 5 can be made for example of a sheet 14 of packaging material having a multi-layered structure of Fig. 3.
  • the sheet 14 is folded double along the fold line 15 such that the heat-sealing layers 10 of the material come to be across from one another in the folded sheet.
  • the folded sheet is heat-sealed along the edges into a closed bag package 13.
  • the bag 13 can be opened by taking hold of the sides of the bag 16 and pulling them away from each other, wherein the sealing line 17, in those areas where the pulling force is exerted, gives way.
  • Fig. 5 can be seen a bag 13 partially opened at its mouth 18.
  • the peelable multi-layered structure was produced using coextrusion techniques by coating Lumiflex paper of basis weight 90 g/m 2 . 15 g/m 2 polypropylene WG341C was used for the support layer, the peelable layer being 10 g/m 2 in strength.
  • the composition of the peelable layer was 17.5 % polystyrene, 52.5 % ethyl methyl acrylate, and 30 % talcum.
  • the web speed during coating was 100 m/s.
  • the temperature profile of the polypropylene extruder was 240-290-315-314-315-315-285-285-285 0 C when the melt temperature was 315 0 C.
  • the temperature profile of the extruder feeding the peelable mixture was 200-240-290-290-290-290-275-275-275 0 C when the melt temperature was 290 0 C and the temperature of the nozzles was 300 0 C.
  • the resulting multi-layered coated paper was sealed against itself, wherein a bag- like flexible package was created.
  • the peelability of the seal was tested using a T- peel test on a Hounsfield pulling apparatus.
  • the seal tester was a Kopp Hot Tack -seal tester and the sealing time was 0.5 s.
  • the seal temperature was 9O 0 C
  • the strength needed for peeling was 150 N/m, at a temperature of 100 0 C 180 N/m, at a temperature of 110 0 C 250 N/m, at a temperature of 120 0 C N/m and at 130 0 C 220 N/m.
  • Example 1 The suitability of a peelable layered material produced as in Example 1 as the material for different types of peelable cardboard packages was tested by sealing it against coated cardboard.
  • the material was tested by sealing it to coated cardboard using a Kopp Hot Tack -sealing apparatus.
  • the width of the jaw of the sealer was 20 mm, the sealing time 1.0 s and the sealing force 100 N (0.5 bar).
  • the temperature area, in which a peelable seal was achieved, was when sealing to polyethylene-coated (PE-) cardboard (Cupforma PE 210+15) 100-130°C, when sealing to polyethylene terephthalate-coated (PET-) cardboard (Trayforma WPET 350+40) 130-140 0 C, and when sealing to polypropylene-coated (PP-) cardboard (Trayforma PP 420+20) 130-140°C.

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

Abstract

L’invention concerne une matière multicouche thermosoudable pour des structures fermées par soudage et pouvant être ouvertes à partir d’un point de soudure (7) en les détachant, notamment des emballages de produits thermosoudés (1). L’invention concerne également des emballages constitués de la matière en question. L’invention concerne en particulier des couvercles (5) de gobelets et des boîtes d’emballage (4) qui peuvent être détachés, ainsi que des sachets d’emballage formés par soudage de la matière proprement dite. La matière est constituée d’une couche de base (8) en papier ou en carton, d’une couche de support polymère (9) servant, par exemple, de poche d’air, et d’une couche extérieure thermosoudable à base de polymère (10), dans laquelle sont mélangés, selon l’invention, du polystyrène, un copolymère d’acrylate et une substance inorganique fine telle que, par exemple, du talc. Une matière selon l’invention est soudable de manière détachable sur, par exemple, du polyéthylène, du polyester ou du polystyrène.
PCT/FI2004/000728 2004-11-30 2004-11-30 Matiere multicouche et emballage de produit thermosoude constitue de celle-ci WO2006058952A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/FI2004/000728 WO2006058952A1 (fr) 2004-11-30 2004-11-30 Matiere multicouche et emballage de produit thermosoude constitue de celle-ci
EP04798337A EP1824679A1 (fr) 2004-11-30 2004-11-30 Matiere multicouche et emballage de produit thermosoude constitue de celle-ci

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FI2004/000728 WO2006058952A1 (fr) 2004-11-30 2004-11-30 Matiere multicouche et emballage de produit thermosoude constitue de celle-ci

Publications (1)

Publication Number Publication Date
WO2006058952A1 true WO2006058952A1 (fr) 2006-06-08

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EP (1) EP1824679A1 (fr)
WO (1) WO2006058952A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2913230A1 (fr) * 2007-03-01 2008-09-05 Europ D Emballage Et De Condit Plateau de presentation en materiau composite et son procede de fabrication.
US7871696B2 (en) 2006-11-21 2011-01-18 Kraft Foods Global Brands Llc Peelable composite thermoplastic sealants in packaging films
US7871697B2 (en) 2006-11-21 2011-01-18 Kraft Foods Global Brands Llc Peelable composite thermoplastic sealants in packaging films
DE202011051782U1 (de) 2011-10-27 2013-01-28 Engelhardt-Druck Gmbh Membranabdeckung mit einer Papierschicht
US8389596B2 (en) 2010-02-26 2013-03-05 Kraft Foods Global Brands Llc Low-tack, UV-cured pressure sensitive adhesive suitable for reclosable packages
US8398306B2 (en) 2005-11-07 2013-03-19 Kraft Foods Global Brands Llc Flexible package with internal, resealable closure feature
US8763890B2 (en) 2010-02-26 2014-07-01 Intercontinental Great Brands Llc Package having an adhesive-based reclosable fastener and methods therefor
US9532584B2 (en) 2007-06-29 2017-01-03 Kraft Foods Group Brands Llc Processed cheese without emulsifying salts
US9533472B2 (en) 2011-01-03 2017-01-03 Intercontinental Great Brands Llc Peelable sealant containing thermoplastic composite blends for packaging applications
JP2018177252A (ja) * 2017-04-05 2018-11-15 昭和電工パッケージング株式会社 易開封性蓋材および包装体
EP3960446A1 (fr) 2020-08-28 2022-03-02 Danapak Flexibles A/S Feuille d'emballage thermoscellable
WO2022043370A1 (fr) 2020-08-28 2022-03-03 Danapak Flexibles A/S Feuille d'emballage thermoscellable

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US8398306B2 (en) 2005-11-07 2013-03-19 Kraft Foods Global Brands Llc Flexible package with internal, resealable closure feature
US7871696B2 (en) 2006-11-21 2011-01-18 Kraft Foods Global Brands Llc Peelable composite thermoplastic sealants in packaging films
US7871697B2 (en) 2006-11-21 2011-01-18 Kraft Foods Global Brands Llc Peelable composite thermoplastic sealants in packaging films
US8110286B2 (en) 2006-11-21 2012-02-07 Kraft Foods Global Brands Llc Peelable composite thermoplastic sealants in packaging films
US9309027B2 (en) 2006-11-21 2016-04-12 Intercontinental Great Brands Llc Peelable composite thermoplastic sealants in packaging films
US8470397B2 (en) 2006-11-21 2013-06-25 Kraft Foods Global Brands Llc Peelable composite thermoplastic sealants in packaging films
FR2913230A1 (fr) * 2007-03-01 2008-09-05 Europ D Emballage Et De Condit Plateau de presentation en materiau composite et son procede de fabrication.
US9532584B2 (en) 2007-06-29 2017-01-03 Kraft Foods Group Brands Llc Processed cheese without emulsifying salts
US8763890B2 (en) 2010-02-26 2014-07-01 Intercontinental Great Brands Llc Package having an adhesive-based reclosable fastener and methods therefor
US9096780B2 (en) 2010-02-26 2015-08-04 Intercontinental Great Brands Llc Reclosable fasteners, packages having reclosable fasteners, and methods for creating reclosable fasteners
US8389596B2 (en) 2010-02-26 2013-03-05 Kraft Foods Global Brands Llc Low-tack, UV-cured pressure sensitive adhesive suitable for reclosable packages
US9382461B2 (en) 2010-02-26 2016-07-05 Intercontinental Great Brands Llc Low-tack, UV-cured pressure sensitive adhesive suitable for reclosable packages
US10287077B2 (en) 2010-02-26 2019-05-14 Intercontinental Great Brands Llc Low-tack, UV-cured pressure sensitive adhesive suitable for reclosable packages
US9533472B2 (en) 2011-01-03 2017-01-03 Intercontinental Great Brands Llc Peelable sealant containing thermoplastic composite blends for packaging applications
DE202011051782U1 (de) 2011-10-27 2013-01-28 Engelhardt-Druck Gmbh Membranabdeckung mit einer Papierschicht
JP2018177252A (ja) * 2017-04-05 2018-11-15 昭和電工パッケージング株式会社 易開封性蓋材および包装体
EP3960446A1 (fr) 2020-08-28 2022-03-02 Danapak Flexibles A/S Feuille d'emballage thermoscellable
WO2022043370A1 (fr) 2020-08-28 2022-03-03 Danapak Flexibles A/S Feuille d'emballage thermoscellable

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