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HRP20201276T1 - Kompozitna folija - Google Patents

Kompozitna folija Download PDF

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Publication number
HRP20201276T1
HRP20201276T1 HRP20201276TT HRP20201276T HRP20201276T1 HR P20201276 T1 HRP20201276 T1 HR P20201276T1 HR P20201276T T HRP20201276T T HR P20201276TT HR P20201276 T HRP20201276 T HR P20201276T HR P20201276 T1 HRP20201276 T1 HR P20201276T1
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HR
Croatia
Prior art keywords
layer
composite film
polypropylene
container
membrane
Prior art date
Application number
HRP20201276TT
Other languages
English (en)
Inventor
Christoph Dietrich
Steven WELVAERT
Bert De Schoenmaker
Original Assignee
Amcor Flexibles Singen Gmbh
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 Amcor Flexibles Singen Gmbh filed Critical Amcor Flexibles Singen Gmbh
Publication of HRP20201276T1 publication Critical patent/HRP20201276T1/hr

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    • 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
    • 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
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • 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
    • B32B15/085—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 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
    • 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
    • B32B27/06—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
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    • 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
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
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    • 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
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    • B32B7/02—Physical, chemical or physicochemical properties
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    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
    • 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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • 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
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    • 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
    • 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
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Laminated Bodies (AREA)
  • Closures For Containers (AREA)
  • Wrappers (AREA)
  • Glass Compositions (AREA)

Claims (15)

1. Kompozitna folija (1) za zatvaranje spremnika (10) brtvljenjem kompozitne folije (1) na obodnu brtvenu površinu (11) spremnika (10) ili pokrovnog prstena (12) koji se spaja na spremnik (10), te kompozitna folija (1) sadrži vanjski nosivi sloj (30) izrađen od metalne folije i unutarnju višeslojnu membranu (20) laminiranu na vanjski nosivi sloj (30) pomoću vezujućeg sloja (28), naznačena time što membrana (20) ima strukturu od uzastopnih slojeva izvana prema unutra, koja se sastoji od temeljnog sloja (21) izrađenog od polipropilena, međusloja (23) izrađenog od djelomično kristalnog poliamida i kohezivno lomljivog sloja za ljuštenje (25) izrađenog od polipropilena, polietilena i talka, pri čemu se između međusloja (23) i temeljnog sloja (21) kao i između međusloja (23) i sloja za ljuštenje (25) nalazi vezni sloj (22, 24) izrađen od polipropilena cijepljenog anhidridom maleinske kiseline (MAH-PP), te membrana nadalje ima unutarnji sloj za brtvljenje (26) izrađen od slučajnog kopolimera koji sadrži monomere propilena, etilena i butilena, te je slučajni kopolimer cijepljen s anhidridom maleinske kiseline (MAH), pri čemu točka omekšavanja sloja za brtvljenje (26) leži barem između 15 i 25 °C niže od točke veznih slojeva (22, 24).
2. Kompozitna folija (1) prema patentnom zahtjevu 1, naznačena time što su vezni slojevi (22, 24) izrađeni od homopolimernog polipropilena cijepljenog s anhidridom maleinske kiseline (MAH).
3. Kompozitna folija (1) prema patentnom zahtjevu 1, naznačena time što sloj za brtvljenje (26) ima točku omekšavanja od između 140 i 145°C i vezni slojevi (22, 24) imaju točku omekšavanja od između 160 i 165 °C.
4. Kompozitna folija (1) prema patentnom zahtjevu 1, naznačena time što međusloj (23) ima točku omekšavanja od između 185 i 220 °C.
5. Kompozitna folija (1) prema patentnom zahtjevu 1, naznačena time što je temeljni sloj (21) izrađen od homopolimernog polipropilena koji ima točku omekšavanja u rasponu od 155 do 170 °C.
6. Kompozitna folija (1) prema patentnom zahtjevu 1, naznačena time što je vezujući sloj (28) koji se nalazi između vanjskog temeljnog sloja (21) i nosivog sloja (30) izrađen od polipropilena cijepljenog anhidridom maleinske kiseline, laka ili ljepila.
7. Kompozitna folija (1) prema patentnom zahtjevu 1, naznačena time što je djelomično kristalni poliamid međusloja (23) PA 6.6 ili PA 66.6.
8. Kompozitna folija (1) prema patentnom zahtjevu 1, naznačena time što je vanjski nosivi sloj (30) aluminijska folija koja ima debljinu od 20 do 160 µm, naročito 30 do 80 µm.
9. Kompozitna folija (1) prema patentnom zahtjevu 1, naznačena time što temeljni sloj (21) kao i međusloj (23) imaju debljinu od 8 do 12 µm, sloj za ljuštenje (25) ima debljinu od 10 do 18 µm, svaki od vezivnih slojeva (22, 24) su debljine 3,5 do 4,5 µm i sloj za brtvljenje (26) ima debljinu od između 2,8 i 3,2 µm.
10. Kompozitna folija (1) prema patentnom zahtjevu 1, naznačena time što sadržaj talka u kohezivno lomljivom sloju za ljuštenje (25) iznosi između 5 i 49 tež.%.
11. Kompozitna folija (1) prema patentnom zahtjevu 1, naznačena time što kohezivno lomljivi sloj za ljuštenje (25) sadrži 5 do 35 tež.% polietilena.
12. Upotreba kompozitne folije (1) prema bilo kojem od patentnih zahtjeva 1 do 11 za zatvaranje spremnika (10) brtvljenjem kompozitne folije (1) na obodnu brtvenu površinu (11) spremnika (10) ili pokrovnog prstena (12) koji se spaja na spremnik (10), naznačena time što se brtvena površina (11) sastoji od metala, metalnog oksida, polipropilena ili od polipropilenom modificiranog laka.
13. Upotreba kompozitne folije (1) prema patentnom zahtjevu 12, naznačena time što se spremnik (10) ili barem pokrovni prsten (12) zagrijavaju najmanje do točke omekšavanja sloja za brtvljenje (26) i kompozitna folija (1) koja ima temperaturu okoline se zatim pritišće na obodnu brtvenu površinu (11) spremnika (10) ili pokrovnog prstena (12).
14. Postupak za proizvodnju kompozitne folije (1) za zatvaranje spremnika (10) brtvljenjem kompozitne folije (1) na obodnu brtvenu površinu (11) spremnika (10) ili pokrovnog prstena (12) koja se spaja na spremnik (10), te kompozitna folija (1) sadrži vanjski nosivi sloj (30) izrađen od metalne folije i unutarnju višeslojnu membranu (20) laminiranu na vanjski nosivi sloj (30) pomoću vezujućeg sloja (28), pri čemu membrana (20) ima strukturu od uzastopnih slojeva izvana prema unutra koja sadrži temeljni sloj (21) izrađen od polipropilena, međusloj (23) izrađen od djelomično kristalnog poliamida i kohezivno lomljiv sloj za ljuštenje (25) izrađen od polipropilena, polietilena i talka, pri čemu se između međusloja (23) i temeljnog sloja (21) kao i između međusloja (23) i sloja za ljuštenje (25) nalazi vezni sloj (22, 24) izrađen od polipropilena cijepljenog anhidridom maleinske kiseline (MAH-PP), te membrana nadalje ima unutarnji sloj za brtvljenje (26) izrađen od slučajnog kopolimera koji sadrži monomere propilena, etilena i butilena, te je slučajni kopolimer cijepljen s anhidridom maleinske kiseline (MAH), pri čemu točka omekšavanja sloja za brtvljenje (26) leži najmanje između 15 i 25 °C niže od točke veznih slojeva (22, 24), naznačen time što postupak sadrži sljedeće korake: (a) osiguravanje metalne folije kao vanjskog nosivog sloja (30) i osiguravanje granuliranih komponenti koje se koriste za višeslojnu membranu (20), naročito polipropilena, polipropilena cijepljenog anhidridom maleinske kiseline, poliamida, polietilena, talka, anhidrida maleinske kiseline i monomera propilena, etilena i butilena; (b) stvaranje unutarnje višeslojne membrane (20) koekstruzijom, pri čemu se svaki sloj pripravka zagrijava i ekstrudira u zasebnom ekstruderu; (c) nanošenje vezujućeg sloja (28) koji je poželjno izrađen od polipropilena cijepljenog anhidridom maleinske kiseline na membranu (20) i dovođenje u kontakt navedenog vezujućeg sloja (28) s navedenim nosivim slojem (30); (d) zagrijavanje kompozitne folije (1) do temperature aktiviranja između 165 do 175 °C tijekom 1,5 do 3 s kako bi se trajno vezala membrana (20) na nosivi sloj (30).
15. Postupak prema patentnom zahtjevu 14, naznačen time što je membrana (1) napuhana.
HRP20201276TT 2017-10-26 2020-08-13 Kompozitna folija HRP20201276T1 (hr)

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KR20200074972A (ko) 2020-06-25
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