EP1525080A1 - Siegelfolie mit barriereschicht - Google Patents
Siegelfolie mit barriereschichtInfo
- Publication number
- EP1525080A1 EP1525080A1 EP03784042A EP03784042A EP1525080A1 EP 1525080 A1 EP1525080 A1 EP 1525080A1 EP 03784042 A EP03784042 A EP 03784042A EP 03784042 A EP03784042 A EP 03784042A EP 1525080 A1 EP1525080 A1 EP 1525080A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- sealing film
- primer
- barrier layer
- functional
- 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.)
- Ceased
Links
- 230000004888 barrier function Effects 0.000 title claims abstract description 26
- 238000007789 sealing Methods 0.000 title claims abstract description 23
- 239000010410 layer Substances 0.000 claims abstract description 58
- 239000002346 layers by function Substances 0.000 claims abstract description 24
- 230000005012 migration Effects 0.000 claims abstract description 10
- 238000013508 migration Methods 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims abstract description 7
- 229920000642 polymer Polymers 0.000 claims description 6
- 239000002318 adhesion promoter Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 239000000470 constituent Substances 0.000 abstract description 4
- 238000007765 extrusion coating Methods 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 238000001228 spectrum Methods 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
- B29C33/68—Release sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0067—Using separating agents during or after moulding; Applying separating agents on preforms or articles, e.g. to prevent sticking to each other
- B29C37/0075—Using separating agents during or after moulding; Applying separating agents on preforms or articles, e.g. to prevent sticking to each other using release sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
-
- 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
- B32B27/18—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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31725—Of polyamide
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31786—Of polyester [e.g., alkyd, etc.]
Definitions
- the invention relates to a sealing film with a substrate, a primer layer and at least one extruded functional layer.
- 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 or peeling layers.
- Migratable components of the primer that occur as long as the primer is not yet crosslinked or has reacted can cause disturbances in the properties of the functional layers (sealing, sealing or peeling properties) or disturbances in additive functions, such as sliding properties or anti-static properties.
- Such migration occurs especially then when functionalized polymers, copolymers and / or blends with low crystallinity, incompatible constituents and / or higher solubility are used for migratable components.
- the present invention is based on the object of providing a sealing film in which undesired migration of constituents of the primer layer and / or the functional layer is avoided while impairing the packaging function.
- the previously derived and demonstrated object is achieved in that an extruded barrier layer which at least prevents the migration of components of the primer layer and / or the functional layer is provided between the primer layer and the extruded functional layer.
- an extruded barrier layer which at least prevents the migration of components of the primer layer and / or the functional layer is provided between the primer layer and the extruded functional layer.
- the layer system according to the invention can be constructed very simply.
- an adhesion promoter 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 materials that can be used for the barrier layer.
- the barrier layer and / or the adhesion promoter layer and / or the compatibility promoter layer are coextruded with the functional layer, the extrusion coating is ensured in one work step.
- the barrier plastic for producing the barrier layer provided according to the invention is targeted to select according to the expected migrable components of the layers.
- Particularly suitable polymers for the barrier layer provided according to the invention are higher density polyethylene, polyester, polyamide or filled polymers.
- the single figure shows a section through an embodiment of a sealing film according to the invention.
- An embodiment of a 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.
- the substrate can also be formed from a polyester film, for example.
- 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.
- a compatibility agent layer 5 provided according to the invention
- a functional layer 6 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 at least partially replaced by the relatively inexpensive barrier material.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002135583 DE10235583A1 (de) | 2002-08-03 | 2002-08-03 | Siegelfolie mit Barriereschicht |
| DE10235583 | 2002-08-03 | ||
| PCT/EP2003/008017 WO2004014628A1 (de) | 2002-08-03 | 2003-07-23 | Siegelfolie mit barriereschicht |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1525080A1 true EP1525080A1 (de) | 2005-04-27 |
Family
ID=30469393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03784042A Ceased EP1525080A1 (de) | 2002-08-03 | 2003-07-23 | Siegelfolie mit barriereschicht |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20060141274A1 (de) |
| EP (1) | EP1525080A1 (de) |
| AU (1) | AU2003250137A1 (de) |
| DE (1) | DE10235583A1 (de) |
| WO (1) | WO2004014628A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10337055A1 (de) | 2003-08-12 | 2005-03-10 | Tyco Electronics Amp Gmbh | Elektrisches Fahrzeugtürgriff-Steckverbindungssystem |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT347698B (de) * | 1974-11-04 | 1979-01-10 | Herberts & Co Gmbh | Verfahren zum verbinden von folien |
| US4288483A (en) * | 1980-09-09 | 1981-09-08 | Schlegel Corporation | Weatherstrip with heat sealed substrate |
| DE3828355A1 (de) * | 1988-08-20 | 1990-02-22 | Hoechst Ag | Mehrschichtige verpackungsfolie mit gasbarriere |
| CA1328836C (en) * | 1989-05-22 | 1994-04-26 | Charles E. Gibbons | Oxygen impermeable leak free container |
| SE500346C2 (sv) * | 1989-10-16 | 1994-06-06 | Tetra Laval Holdings & Finance | Förpackningslaminat innefattande ett syrgasbarriärskikt och ett smakbarriärskikt, båda bestående av en blandning av eten- vinylalkohol-sampolymer och polyeten |
| DE4026656A1 (de) * | 1990-08-23 | 1992-02-27 | Hoechst Ag | Siegelbare, weisse folie aus propylenpolymeren mit guten technischen eigenschaften |
| DE4306963A1 (de) * | 1993-03-05 | 1994-09-08 | Wolff Walsrode Ag | Weiß-opake Sperrschichtfolie mit ausgezeichneter Planlage |
| EP0842044A1 (de) * | 1995-07-24 | 1998-05-20 | Wolff Walsrode Ag | Verbundfolien mit biaxial orientierten polyethylen-siegelschichten |
| DE19534012C2 (de) * | 1995-09-14 | 1997-07-31 | Basf Lacke & Farben | Verbundwerkstoff aus Direktextrusion |
| 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 |
| US6576308B2 (en) * | 1996-05-23 | 2003-06-10 | Pliant Corporation | Carrier release sheet for styrene molding process and process system |
| AU4057497A (en) * | 1996-08-12 | 1998-03-06 | Daniel G. Denehy | Carrier release sheet for molding compound |
| US5871842A (en) * | 1996-10-28 | 1999-02-16 | Thomas & Betts International, Inc. | Grafted thermoplastic elastomer barrier layer |
| 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 |
| WO2001019694A1 (fr) * | 1999-09-10 | 2001-03-22 | Ishida Co., Ltd. | Sac d'emballage de produits alimentaires, procede d'emballage de produits alimentaires et film lamine utilise en tant que sac d'emballage de produits alimentaires |
| EP1199158A1 (de) * | 2000-10-20 | 2002-04-24 | Alcan Technology & Management AG | Sterilgut-Verpackungsmaterial |
| MXPA05000686A (es) * | 2002-07-19 | 2005-04-08 | Avery Dennison Corp | Metodo de etiquetado que emplea adhesivos curables de dos partes. |
| US20070116910A1 (en) * | 2005-11-23 | 2007-05-24 | Polykarpov Alexander Y | Multilayer laminated structures |
-
2002
- 2002-08-03 DE DE2002135583 patent/DE10235583A1/de not_active Ceased
-
2003
- 2003-07-23 AU AU2003250137A patent/AU2003250137A1/en not_active Abandoned
- 2003-07-23 WO PCT/EP2003/008017 patent/WO2004014628A1/de not_active Ceased
- 2003-07-23 US US10/522,221 patent/US20060141274A1/en not_active Abandoned
- 2003-07-23 EP EP03784042A patent/EP1525080A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004014628A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004014628A1 (de) | 2004-02-19 |
| AU2003250137A1 (en) | 2004-02-25 |
| DE10235583A1 (de) | 2004-02-19 |
| US20060141274A1 (en) | 2006-06-29 |
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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: 20051025 |
|
| 17Q | First examination report despatched |
Effective date: 20051025 |
|
| 17Q | First examination report despatched |
Effective date: 20051025 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ALCAN TECHNOLOGY & MANAGEMENT AG |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
| 18R | Application refused |
Effective date: 20081208 |