EP2197671A1 - Laminate für leicht zu öffnende verpackungen - Google Patents
Laminate für leicht zu öffnende verpackungenInfo
- Publication number
- EP2197671A1 EP2197671A1 EP08802692A EP08802692A EP2197671A1 EP 2197671 A1 EP2197671 A1 EP 2197671A1 EP 08802692 A EP08802692 A EP 08802692A EP 08802692 A EP08802692 A EP 08802692A EP 2197671 A1 EP2197671 A1 EP 2197671A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealing layer
- plastic film
- printing
- overcoat
- aluminum foil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000007789 sealing Methods 0.000 claims abstract description 68
- 230000004888 barrier function Effects 0.000 claims abstract description 41
- 239000002985 plastic film Substances 0.000 claims abstract description 41
- 229920006255 plastic film Polymers 0.000 claims abstract description 41
- 239000004922 lacquer Substances 0.000 claims abstract description 23
- -1 polypropylene Polymers 0.000 claims abstract description 19
- 239000004743 Polypropylene Substances 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 229920001155 polypropylene Polymers 0.000 claims abstract description 13
- 239000004952 Polyamide Substances 0.000 claims abstract description 10
- 229920002647 polyamide Polymers 0.000 claims abstract description 10
- 229920000728 polyester Polymers 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000001125 extrusion Methods 0.000 claims abstract 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 33
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 33
- 239000011888 foil Substances 0.000 claims description 30
- 239000003973 paint Substances 0.000 claims description 11
- 238000004806 packaging method and process Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 7
- 238000010030 laminating Methods 0.000 claims description 6
- 239000002966 varnish Substances 0.000 claims description 6
- 238000007765 extrusion coating Methods 0.000 claims description 5
- 239000005030 aluminium foil Substances 0.000 abstract 1
- 239000000796 flavoring agent Substances 0.000 abstract 1
- 238000001771 vacuum deposition Methods 0.000 abstract 1
- 229920002799 BoPET Polymers 0.000 description 20
- 239000004698 Polyethylene Substances 0.000 description 9
- 229920002239 polyacrylonitrile Polymers 0.000 description 6
- 229920000573 polyethylene Polymers 0.000 description 6
- 229920004439 Aclar® Polymers 0.000 description 5
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- BLDFSDCBQJUWFG-UHFFFAOYSA-N 2-(methylamino)-1,2-diphenylethanol Chemical compound C=1C=CC=CC=1C(NC)C(O)C1=CC=CC=C1 BLDFSDCBQJUWFG-UHFFFAOYSA-N 0.000 description 3
- 229920001824 Barex® Polymers 0.000 description 3
- 229920000298 Cellophane Polymers 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 229920003182 Surlyn® Polymers 0.000 description 3
- 239000005035 Surlyn® Substances 0.000 description 3
- 239000012876 carrier material Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 229920000554 ionomer Polymers 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 229920000092 linear low density polyethylene Polymers 0.000 description 3
- 239000004707 linear low-density polyethylene Substances 0.000 description 3
- 229920001684 low density polyethylene Polymers 0.000 description 3
- 239000004702 low-density polyethylene Substances 0.000 description 3
- 229920001179 medium density polyethylene Polymers 0.000 description 3
- 239000004701 medium-density polyethylene Substances 0.000 description 3
- 239000005033 polyvinylidene chloride Substances 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 1
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- 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
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding 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
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/514—Oriented
- B32B2307/518—Oriented bi-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
- B32B2307/70—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
- B32B2307/7246—Water vapor 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
- B32B2439/00—Containers; Receptacles
Definitions
- the invention relates to laminates for the production of easy-open packages without opening aid and packaging produced from the laminates.
- Paper-free laminates for the production of flat bags with three or four peripheral sealing seams - so-called 4-edge and 3-edge sealed bags - as well as tubular bags and stick-packs with a longitudinal seal and two transverse sealing seams have on the outside mainly a biaxially oriented polyester film or biaxially oriented polypropylene films or polyamide of at least 12 ⁇ m thickness.
- a biaxially oriented polyester film or biaxially oriented polypropylene films or polyamide of at least 12 ⁇ m thickness For the consumer, it is often very difficult to open the bag by tearing when no opening aid is present.
- a known opening aid consists of a notch introduced in the packing unit usually on the finished bag into a sealed seam.
- the laminate is weakened locally before bag production by means of laser cuts in the intended opening area. In either case, there is a possibility that an existing barrier layer is damaged or a notch extends into the unsealed area.
- cellophane In the case of laminates for the production of strip packaging, for the purpose of easier tearing, predominantly cellophane is used as the laminating film in a thickness> 20 ⁇ m.
- the resources of cellophane are limited and the production affects the environment.
- To protect against moisture cellophane is usually also provided with a paint.
- a tear-in help is required, or the opening is made by cutting with a pair of scissors, which affects the consumer-friendliness of the packaging.
- the invention has for its object to provide laminates that are too Can process bags and strip packs and which are easy to tear without tools and opening aids.
- a laminate carrying a 4 to 10 ⁇ m thick plastic film of biaxially oriented polyester, polypropylene or polyamide, optionally as a barrier against the passage of water vapor, gases and aroma substances, an aluminum foil, a vapor-deposited in vacuum or by painting, Extrusion coating or as a plastic film by laminating applied barrier layer and a sealing layer comprises.
- the plastic film may be replaced by at least one lacquer layer.
- the laminates can be divided into three groups:
- High barrier laminates These contain an aluminum foil as barrier layer.
- Laminates with medium barrier effect contain metallized plastic films or ceramic coatings, such as SiO x or Al 2 O 3 as
- the packages to be produced from the laminates are normally printed and, depending on the printing process and printing ink, may be overpainted.
- the sealant layers are usually polyethylenes, e.g. LDPE, LLDPE, MDPE and mixtures thereof or coextruded, metallocenes, polyethylenes and ionomers, e.g. Surlyn®, or coextruded films of these materials with PE as the backing layer.
- polyethylenes e.g. LDPE, LLDPE, MDPE and mixtures thereof or coextruded, metallocenes, polyethylenes and ionomers, e.g. Surlyn®, or coextruded films of these materials with PE as the backing layer.
- PAN polyacrylonitrile
- Polypropylene can also be used for special applications.
- the thickness of the sealing layers is in the range of 10 to 100 .mu.m, preferably 15 to 75 .mu.m.
- the sealing layers can be applied to the carrier material by means of extrusion coating or lamination.
- the thickness of the aluminum foil used as a barrier for the bag is about 5 to 30 ⁇ m, preferably 7 to 25 ⁇ m, and for strip packing about 12 to 50 ⁇ m, preferably 15 to 40 ⁇ m.
- the thickness of the biaxially oriented plastic film of polyester, polypropylene or polyamide arranged on the outside is 4 to 10 ⁇ m, preferably 6 to 8 ⁇ m.
- the plastic film and is laminated against the aluminum foil with the usual methods and materials.
- the plastic film can be counter-printed, or the pressure is frontal. In this case, a corresponding lubricious overcoat is required if the ink does not already have this property.
- the aluminum on the outside can also only be painted / printed / overpainted or printed / overpainted.
- the coating weight of the paints is 0.2 to 3 g / m 2 , preferably 0.5 to 2 g / m 2 .
- the lacquer base used is, for example, nitrocellulose, acrylate, polyurethane, polyester, polystyrene resins, resins based on urea or melamine resin, and mixtures thereof with corresponding additives for improving the adhesion, the heat resistance, the Sliding behavior, gloss or dullness, and printability in inline and conventional printing processes.
- the outside must have the same sliding properties as the plastic composite.
- Laminates having an average barrier effect have, for example, the following structures:
- the sealant layers are usually polyethylenes, eg LDPE, LLDPE, MDPE and mixtures thereof or coextruded, metallocenes polyethylenes and ionomers, eg Surlyn®, or coextruded films of these materials PE as carrier layer.
- polyethylenes eg LDPE, LLDPE, MDPE and mixtures thereof or coextruded, metallocenes polyethylenes and ionomers, eg Surlyn®, or coextruded films of these materials PE as carrier layer.
- PAN polyacrylonitrile
- Polypropylene can also be used for special applications.
- the thickness of the sealing layers is in the range of 10 to 100 microns, preferably 15 to 75 microns.
- the sealing layers can be applied to the carrier material by means of extrusion coating or lamination.
- the thickness of the biaxially oriented plastic film of polyester, polypropylene or polyamide arranged on the outside is 4 to 10 ⁇ m, preferably 6 to 8 ⁇ m.
- the plastic film can be counter-printed, or the pressure is frontal. In this case, a corresponding lubricious overcoat is required if the ink does not already have this property.
- Suitable barrier layers are, for example, silicon oxide (SiO x ), metal oxides, such as aluminum or iron oxide, vapor-deposited metal, such as aluminum, chromium, copper, iron, platinum, gold and silver, Ormoceren-based paint or a coating made of polyvinylidene chloride (PVdC).
- SiO x silicon oxide
- metal oxides such as aluminum or iron oxide
- vapor-deposited metal such as aluminum, chromium, copper, iron, platinum, gold and silver
- the barrier layer may be on the inside or outside of the outer plastic film.
- Laminates which do not require any special barrier properties have the following constructions, for example:
- the sealant layers are usually polyethylenes, e.g. LDPE, LLDPE, MDPE and mixtures thereof or coextruded, metallocenes, polyethylenes and ionomers, e.g. Surlyn®, or coextruded films of these materials with PE as the backing layer.
- polyethylenes e.g. LDPE, LLDPE, MDPE and mixtures thereof or coextruded, metallocenes, polyethylenes and ionomers, e.g. Surlyn®, or coextruded films of these materials with PE as the backing layer.
- PAN polyacrylonitrile
- Polypropylene can also be used for special applications.
- the thickness of the sealing layers is in the range of 10 to 100 microns, preferably 15 to 75 microns.
- the sealing layers can be applied to the carrier material by means of extrusion coating or lamination.
- the thickness of the arranged on the outside, biaxially oriented plastic film of polyester, polypropylene or polyamide is 4 to 10 microns, preferably 6 to 8 microns.
- the plastic film can be counter-printed, or the pressure is frontal. In this case, a corresponding lubricious overcoat is required lent, if the ink does not already have this property.
- Laminates which do not require any special barrier properties have, for example, the following structures:
- the laminates described above may also be combined with each other.
- the front and back of a bag or a strip pack may consist of a differently structured laminate.
- the laminates are particularly suitable for the production of 3- and 4-sealed edge bags, tubular bags and stick-packs.
Landscapes
- Laminated Bodies (AREA)
- Wrappers (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08802692A EP2197671A1 (de) | 2007-10-04 | 2008-09-29 | Laminate für leicht zu öffnende verpackungen |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07405301A EP2045072A1 (de) | 2007-10-04 | 2007-10-04 | Laminate für leicht zu öffnende Verpackungen |
| EP08802692A EP2197671A1 (de) | 2007-10-04 | 2008-09-29 | Laminate für leicht zu öffnende verpackungen |
| PCT/EP2008/008255 WO2009043563A1 (de) | 2007-10-04 | 2008-09-29 | Laminate für leicht zu öffnende verpackungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2197671A1 true EP2197671A1 (de) | 2010-06-23 |
Family
ID=39144589
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07405301A Withdrawn EP2045072A1 (de) | 2007-10-04 | 2007-10-04 | Laminate für leicht zu öffnende Verpackungen |
| EP08802692A Withdrawn EP2197671A1 (de) | 2007-10-04 | 2008-09-29 | Laminate für leicht zu öffnende verpackungen |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07405301A Withdrawn EP2045072A1 (de) | 2007-10-04 | 2007-10-04 | Laminate für leicht zu öffnende Verpackungen |
Country Status (3)
| Country | Link |
|---|---|
| EP (2) | EP2045072A1 (de) |
| TW (1) | TW200936465A (de) |
| WO (1) | WO2009043563A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11794450B2 (en) | 2020-12-18 | 2023-10-24 | Altria Client Services Llc | Polymer-laminated metal lid |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2799799A (en) * | 1998-03-03 | 1999-09-20 | Qpf, Llc | Biaxially-oriented polypropylene film containing particles of metal or metal oxide |
| DE10022493A1 (de) * | 2000-05-09 | 2001-11-15 | Wolff Walsrode Ag | Siegelbare Verbundfolie mit einem Sicherheitsmerkmal ein Verfahren zu ihrer Herstellung und ihre Verwendung als Verpackungsmaterial |
| US20070031546A1 (en) * | 2005-08-05 | 2007-02-08 | Curwood, Inc. | Polyester and polyamide blend containing article for packaging a CO2 respiring foodstuff |
-
2007
- 2007-10-04 EP EP07405301A patent/EP2045072A1/de not_active Withdrawn
-
2008
- 2008-09-29 EP EP08802692A patent/EP2197671A1/de not_active Withdrawn
- 2008-09-29 WO PCT/EP2008/008255 patent/WO2009043563A1/de not_active Ceased
- 2008-09-30 TW TW97137528A patent/TW200936465A/zh unknown
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2009043563A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2045072A1 (de) | 2009-04-08 |
| WO2009043563A1 (de) | 2009-04-09 |
| TW200936465A (en) | 2009-09-01 |
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