EP1525089A1 - Sterilisierbare siegelfolie mit barriereschicht - Google Patents
Sterilisierbare siegelfolie mit barriereschichtInfo
- Publication number
- EP1525089A1 EP1525089A1 EP03784043A EP03784043A EP1525089A1 EP 1525089 A1 EP1525089 A1 EP 1525089A1 EP 03784043 A EP03784043 A EP 03784043A EP 03784043 A EP03784043 A EP 03784043A EP 1525089 A1 EP1525089 A1 EP 1525089A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- sealing film
- barrier layer
- film according
- sterilizable
- 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- Withdrawn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
- 230000004888 barrier function Effects 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 title claims abstract description 24
- 239000010410 layer Substances 0.000 claims abstract description 67
- 239000002346 layers by function Substances 0.000 claims abstract description 17
- 239000000758 substrate Substances 0.000 claims abstract description 9
- 230000005012 migration Effects 0.000 claims abstract description 7
- 238000013508 migration Methods 0.000 claims abstract description 7
- 229920000642 polymer Polymers 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 239000004952 Polyamide Substances 0.000 claims description 4
- 239000002318 adhesion promoter Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 229920000106 Liquid crystal polymer Polymers 0.000 claims description 2
- 229920002292 Nylon 6 Polymers 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims 1
- 239000000945 filler Substances 0.000 abstract description 2
- 239000000470 constituent Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 238000007765 extrusion coating Methods 0.000 description 5
- 230000001954 sterilising effect Effects 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003313 weakening effect Effects 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 230000001617 migratory effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 229920006334 epoxy coating Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 150000003626 triacylglycerols Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 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
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
- B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
-
- 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
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/55—Liquid crystals
-
- 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
- B32B2307/704—Crystalline
-
- 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
- B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
-
- 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
- B32B2369/00—Polycarbonates
-
- 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
- B32B2377/00—Polyamides
Definitions
- the invention relates to a sterilizable sealing film with a substrate, a primer layer and at least one extruded function layer.
- Sterilizable sealing foils the substrates of which consist, for example, of aluminum, plastic or paper, generally have a primer layer as a primer for extrusion coatings.
- the functional layers applied by extrusion are, for example, welding, sealing and / or peeling layers.
- sterilizable, peelable (extrusion) coatings especially lids for polypropylene shells or shells with polypropylene on the inside, are only partially resistant to filling material components. This can manifest itself in inadequate seal seam strength, inadequate peel resistance when opening, pellicle or thread formation when opening the container or in delamination of partial layers or the complete coating. This failure occurs due to migration of filling material components into the layers of the mostly coextruded extrudate and weakening of these layers at interfaces with one another or cohesive weakening of individual or all layers, especially during heat treatments, such as, for example Pasteurize or sterilize. Adhesion layers adjacent to aluminum as the substrate are particularly sensitive when in particular fat components (essentially triglycerides and fatty acids) are absorbed.
- the adhesion-promoting interface can be protected in a complex manner, for example by polyimide, or epoxy coating or chemical conversion treatment of the aluminum.
- this treatment is ineffective in the case of cohesive failure of the adhesion promoter or adhesive failure at the interface with the coating / primer or pretreatment.
- heat seal lacquers based on VC polymers, acrylates, epoxy resins consisting of PVC polymers or acrylates generally have a good barrier effect for filling components such as water, lactic acid, acetic acid and salt, so that these filling components, which adhere to substrates such as Al -Foil can adversely affect the surface of the aluminum.
- extrusion coatings made of ethylene or polypropylene (co) polymers or mixtures offer only moderate protection against such filling material components, so that greater attention needs to be paid to the adhesion and the filling material resistance, especially at elevated temperatures.
- the present invention is based on the object of providing a sterilizable sealing film in which migration of components of the Filling material within the film is reduced or avoided entirely.
- the previously derived and demonstrated object is achieved in that an extruded barrier layer is provided between the primer layer and the extruded functional layer to prevent the migration of components of the filling material.
- the arrangement of such a barrier layer between the primer layer and the functional layer ensures that the composite is free of migratory substances, thereby providing an easy-to-manufacture, sterilizable sealing film which, in particular, ensures the safe use of adhesive and easy-to-use, inexpensive, but not yet usable due to lack of filling material resistance Primer systems enabled.
- This sterilizable sealing film requires, for example, shorter or no necessary curing times and / or has a higher product safety.
- a major advance in the sterilizable sealing film according to the invention is that the adhesion-promoting polymer, the primer, is protected against absorption and migration of, in particular, fat components to the interface with the aluminum or the substrate.
- a barrier layer provided in accordance with the invention protects both adhesive interfaces and the adhesive agent via its thickness from excessive absorption or enrichment with migratory material, particularly during sterilization and also during storage of the container after sterilization. Because the barrier layer according to a first embodiment has good adhesive properties on the primer layer, the layer system according to the invention can be constructed very simply.
- an adhesive agent layer and / or a compatibility agent layer is advantageously provided between the primer layer and the barrier layer in order to produce the adhesive properties.
- a compatibility mediator layer is provided between the barrier layer and the functional layer significantly expands the spectrum of the materials that can be used for the barrier layer.
- the barrier layer, the adhesive layer and / or the compatibility agent layer are coextruded with the 'functional layer, the extrusion coating is ensured in a single step.
- the barrier plastic for producing the barrier layer provided according to the invention is targeted according to the migratable components of the layers or the filling material to be expected and, with regard to the sterilization process, its temperature resistance select.
- Particularly suitable polymers for the barrier layer provided according to the invention are polyamide, modified polyamide, polyamide 6, amorphous or crystalline polycarbonate, polyester, liquid-crystalline polymers, polyolefins, filled polymers or, for example, polyolefins which crosslink under the influence of temperature and moisture.
- Suitable filling components for the filled polymers are, for example, mica, talc or so-called nanoparticles.
- the crosslinking of the polyolefins, for example under the influence of temperature and moisture, can be produced in particular by silane.
- the peel resistance of the sterilizable sealing film can be determined by the additive content, the heat treatment temperature and time , especially the sterilization temperature and time.
- the weakening can be done specifically by the components on the product side of the packaging.
- the embodiment shown in the single figure of a sterilizable sealing film 1 according to the invention has a substrate 2 made of aluminum in the embodiment shown.
- This substrate 2 is provided with a primer layer 3 as a primer for the extrusion coating.
- an extrusion coating was carried out by coextruding a barrier layer 4 provided according to the invention, a compatibility agent layer 5 and a functional layer 6.
- an adhesion promoter layer can also be used between these two layers, which is preferably coextruded together with the barrier layer 4, the compatibility promoter layer 5 and the functional layer 6.
- a side effect of the arrangement according to the invention of a barrier layer 4 between the primer layer 3 and the functional layer 6 is that, under certain circumstances, expensive functional layers, consisting for example of peel mixtures, can be replaced by the relatively inexpensive barrier material.
- the use of two or more functional layers instead of, as shown, a functional layer 6 is possible in order to adapt the sterilizable sealing film 1 according to the invention to your intended use.
Landscapes
- Laminated Bodies (AREA)
- Wrappers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10235584 | 2002-08-03 | ||
| DE10235584A DE10235584A1 (de) | 2002-08-03 | 2002-08-03 | Sterilisierbare Siegelfolie mit Barriereschicht |
| PCT/EP2003/008018 WO2004014645A1 (de) | 2002-08-03 | 2003-07-23 | Sterilisierbare siegelfolie mit barriereschicht |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1525089A1 true EP1525089A1 (de) | 2005-04-27 |
Family
ID=30469394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03784043A Withdrawn EP1525089A1 (de) | 2002-08-03 | 2003-07-23 | Sterilisierbare siegelfolie mit barriereschicht |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1525089A1 (de) |
| AU (1) | AU2003254569A1 (de) |
| DE (1) | DE10235584A1 (de) |
| WO (1) | WO2004014645A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004020076A1 (de) * | 2004-04-24 | 2005-11-17 | Bayerische Motoren Werke Ag | Schlauchloser Fahrzeugluftreifen |
| AT13631U1 (de) * | 2011-03-16 | 2014-05-15 | Constantia Teich Gmbh | Tiefziehbare, sterilisierbare Platine |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1453621A (en) * | 1972-11-10 | 1976-10-27 | Toyo Seikan Kaisha Ltd | Sterilised food packages |
| DE2719113A1 (de) * | 1977-04-29 | 1978-11-09 | Sengewald Kg Karl H | Verbundfolie aus kunststoffolien fuer verpackungen |
| DE4123672A1 (de) * | 1991-07-17 | 1993-01-21 | Basf Ag | Siegelfaehige, peelbare kunststoffolie |
| CH684746A5 (de) * | 1993-02-25 | 1994-12-15 | Alusuisse Lonza Services Ag | Laminat. |
| DE4306963A1 (de) * | 1993-03-05 | 1994-09-08 | Wolff Walsrode Ag | Weiß-opake Sperrschichtfolie mit ausgezeichneter Planlage |
| EP0686500A3 (de) * | 1994-06-06 | 1998-05-13 | Wolff Walsrode Ag | Verbundfolie enthaltend auf der Siegelseite zwei Propylen-Copolymerisat-Schichten |
| DE19515254C2 (de) * | 1995-04-26 | 1998-06-04 | Fresenius Ag | PVC-freie Mehrschichtfolie, Verfahren zur Herstellung derselben und deren Verwendung |
| WO1997017198A1 (de) * | 1995-11-04 | 1997-05-15 | Tetra Laval Holding & Finance S.A. | Papierähnliche und thermoverformbare mehrschichtenbarrierefolien |
| ATE273253T1 (de) * | 1996-02-28 | 2004-08-15 | Fraunhofer Ges Forschung | Barriereschichten |
| EP0845350A1 (de) * | 1996-11-29 | 1998-06-03 | Alusuisse Technology & Management AG | Kalt-verformbare Verbundfolie |
| EP1010519A1 (de) * | 1998-12-16 | 2000-06-21 | Alusuisse Technology & Management AG | Sterilisierbare Verbundfolie |
| EP1060875A3 (de) * | 1999-06-15 | 2001-12-12 | Alcan Technology & Management AG | Sterilisierbare Verbundfolie |
| EP1199158A1 (de) * | 2000-10-20 | 2002-04-24 | Alcan Technology & Management AG | Sterilgut-Verpackungsmaterial |
-
2002
- 2002-08-03 DE DE10235584A patent/DE10235584A1/de not_active Withdrawn
-
2003
- 2003-07-23 WO PCT/EP2003/008018 patent/WO2004014645A1/de not_active Ceased
- 2003-07-23 AU AU2003254569A patent/AU2003254569A1/en not_active Abandoned
- 2003-07-23 EP EP03784043A patent/EP1525089A1/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004014645A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10235584A1 (de) | 2004-02-19 |
| WO2004014645A1 (de) | 2004-02-19 |
| AU2003254569A1 (en) | 2004-02-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
|
| 17P | Request for examination filed |
Effective date: 20050122 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20070608 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ALCAN TECHNOLOGY & MANAGEMENT AG |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: 3A TECHNOLOGY & MANAGEMENT AG |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20100202 |