EP2024156A1 - Procédé de fabrication d'une feuille de plastique extrudée et utilisation de la feuille de plastique - Google Patents

Procédé de fabrication d'une feuille de plastique extrudée et utilisation de la feuille de plastique

Info

Publication number
EP2024156A1
EP2024156A1 EP07730009A EP07730009A EP2024156A1 EP 2024156 A1 EP2024156 A1 EP 2024156A1 EP 07730009 A EP07730009 A EP 07730009A EP 07730009 A EP07730009 A EP 07730009A EP 2024156 A1 EP2024156 A1 EP 2024156A1
Authority
EP
European Patent Office
Prior art keywords
film
plastic film
produced
fofo
odt
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Withdrawn
Application number
EP07730009A
Other languages
German (de)
English (en)
Inventor
Michael Bauer
Roland Kelm
Josef Müller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huhtamaki Forchheim Zweigniederlassung der Hutamaki Flexible Packaging Germany GmbH and Co KG
Original Assignee
Huhtamaki Forchheim Zweigniederlassung der Hutamaki Deutschland GmbH and Co KG
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 Huhtamaki Forchheim Zweigniederlassung der Hutamaki Deutschland GmbH and Co KG filed Critical Huhtamaki Forchheim Zweigniederlassung der Hutamaki Deutschland GmbH and Co KG
Publication of EP2024156A1 publication Critical patent/EP2024156A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/007—Forming single grooves or ribs, e.g. tear lines, weak spots
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/222—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length characterised by the shape of the surface
    • 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
    • B32B27/06—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
    • 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
    • B32B27/36—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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • 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

Definitions

  • the invention relates to a method for producing a monolayer or multilayer plastic film, as well as the use of the plastic film. Such films are often used for packaging purposes.
  • the invention has for its object to provide a method for producing a single or multilayer plastic film with which a readily on and tear-film can be produced, wherein the film has a preferred tear direction.
  • plastic film is provided at least partially with a structure during or after the extrusion.
  • Embossed structures can be attached in a particularly simple and precisely defined manner.
  • the structure is aligned at an angle to the film longitudinal direction.
  • Another very advantageous embodiment of the invention is also present when the structure is formed as a line structure or crossed line structure.
  • the line structures do not necessarily have to be straight, but can also be wavy, for example.
  • Another, according to the invention very advantageous embodiment of the invention is also in that the film is produced by blow molding.
  • the casting process also offers a good opportunity to introduce, for example, with structured pressing and / or stretching rollers, the proposed structure in the film.
  • Another very advantageous embodiment of the invention is also present when at least a portion of the layers of the film is extruded onto a carrier or laminated onto a carrier.
  • the carrier is structured and optionally transfers its structure to at least one adjacent film layer.
  • the film is cooled during its production up to its crystalline temperature range.
  • a further advantageous embodiment of the invention is that the plastic film is cooled on both sides, i. in the blown film production both on the outside and on the inside of the plastic film tube.
  • the properties of the film achieved can be adjusted particularly well.
  • Another very advantageous embodiment of the invention is also present when the cooling takes place with a defined temperature gradient.
  • the molecular chains can thereby be selectively arranged or fixed.
  • a further advantageous embodiment of the invention is characterized in that the cooling is followed by a so-called annealing zone.
  • the process according to the invention is further improved if, in blown film production, the expansion ratio between the extrusion gap and the finished film tube is less than 2.5, preferably less than 1.8.
  • the gap width of the extrusion die is at least 1.0 mm, preferably at least 1.5 mm.
  • a film is produced, which in the finished state has a thickness of 1 .mu.m to 1500 .mu.m, preferably from 30 .mu.m to 300 .mu.m.
  • the structure has a depth between 1 and 1000 .mu.m, preferably between 5 and 300 .mu.m, in particular between 10 and 20 .mu.m.
  • the structure has a groove width of 1 to 100 ⁇ m, preferably between 10 and 500 ⁇ m, in particular between 40 and 80 ⁇ m.
  • the structure has a groove spacing of 1 to 1000 ⁇ m, preferably between 100 and 500 ⁇ m, in particular between 200 and 300 ⁇ m.
  • T ⁇ DATA ⁇ WORD ⁇ FOFO ⁇ Fo7308 ⁇ 7308PCTB odt a polyolefin, PET, PA and / or a biodegradable plastic and / or a blend of these plastics is also produced with other substances.
  • the plastic film is made from a PLA.
  • the plastic film is produced from a poorly tearing PP.
  • a further advantageous embodiment of the method according to the invention is characterized in that the plastic film is produced as a monofilm of PP homopolymer.
  • the plastic film is produced as monofilm from blends of PP homopolymer with E / P and or Random PP.
  • plastic film is produced by the coextrusion process, wherein at least one of the coextruded layers consists of PP homopolymer.
  • Another very advantageous embodiment of the invention is also the fact that the PP homopolymer is intrinsically nucleated.
  • melt flow index (MFI) of the film material is greater than 0.8, preferably greater than 1.5.
  • the films of the invention can be used particularly advantageously according to a further embodiment of the invention, when the plastic film is used for packaging.
  • the packaging formed can be opened easily but still defined.
  • plastic film is laminated together with other packaging materials.
  • Fig. 1 a produced with a plastic film according to the invention
  • FIG. 2 shows another packaging in the torn state
  • Fig. 3 shows a section through an inventive
  • FIG. 4 shows a section through a second invention
  • FIG. 5 shows a section through a third invention
  • Fig. which is designed in this embodiment as a tubular bag packaging.
  • the package 1 is closed at both ends by welds 2 and 3.
  • a notch 4 is arranged, which serves as a tear-open.
  • the package 1 tears along a predetermined line 5. It can be adjusted depending on the used packaging material or packaging construction lighter or heavier Anr contemplate.
  • T ⁇ DATA ⁇ WORD ⁇ FOFO ⁇ Fo7308 ⁇ 7308PCTB odt Tearing along a given line or contour is created by the structure of the package, as exemplified in FIG.
  • This packaging structure has a cover layer 6 made of a PET, an intermediate layer 7 made of an aluminum or the like, and a plastic film layer 8.
  • the plastic film layer 8 is provided on at least one side with a structure which consists of a plurality of parallel aligned grooves 9.
  • plastic layer 8 is arranged between two layers 6 and 7, as shown in Fig. 4. It is also conceivable that the grooves 9 are arranged on the other layers 6 and 7 facing side, as shown in Fig. 5.
  • the crack is passed along one of the grooves 9. For example, should the crack migrate out of this groove 9 due to material inhomogeneity or the like, it will be directed through the next groove 9.
  • the grooves 9 are so pronounced that they are able to conduct the crack despite further layers of further, undefined tear packaging materials.
  • the grooves 9 and the webs 10 arranged between the grooves 9 have a width of 10 to 1000 ⁇ m, preferably between 300 and 500 ⁇ m.
  • the depth of the grooves 9 is between 10 and 100 ⁇ m, preferably between 100 and 300 ⁇ m.
  • Such a plastic film which determines the breaking behavior of a package can be produced by providing it with the structure during or after the extrusion.
  • the structure is impressed into the film and can be oriented in a continuous production in the film longitudinal direction. Other orientations that can take an angle to the film longitudinal direction are conceivable.
  • the desired structure is already at least partially generated by a corresponding shaping of the extrusion die.
  • an intrinically nucleated polypropylene homopolymer having an MFI greater than 2 is extruded on a blown film line.
  • the gap width of the extruder is set to 2mm.
  • the trigger and the expansion of the film tube is adjusted so that the expansion ratio is 1, 6.
  • the film tube is cooled.
  • the cooling can be done, for example, by internal and / or external cooling air supply.
  • the cooling is not only particularly fast, but also in several stages, whereby, for example, the orientation of the molecules is virtually frozen.
  • the cooling takes place over a predetermined gradient, so that the film is linearly cooled, for example, within 30 seconds to approximately room temperature.
  • the film is produced by the casting process and there the two sides of the film are treated analogously.
  • an annealing zone in which the film is heated again, which can be influenced not only the flatness of the film and the roll quality positive, but also improve the tearing properties and changed defined.
  • the resulting films should have a thickness between 1 and 1500 .mu.m, preferably between 40 and 300 .mu.m and may be formed as monofilms of the above-mentioned raw material, blends thereof or else as coextrusions with at least one such layer.
  • composite films of PETP, aluminum, polypropylene and other comparable materials are often used.
  • Such composite films are often used for packaging in which the packaging is supposed to be particularly light but nevertheless defined. It is important that the rupture takes place only along a desired line or at least approximately along this line. Such a tear behavior is often produced consuming by paints, labels or other aids.
  • a laser perforation is often still applied in one of the film layers in order to support this tearing behavior. Such behavior is known as easy-tear behavior.
  • the plastic film according to the invention is able to replace such film composites and, on the other hand, to be optimized in such a way that they obtain the desired tear properties in a simple manner, without relying on tearing aids.
  • the tear properties are further improved by the plastic film according to the invention. On perforations can be omitted. Deterioration of the barrier properties of the film is thereby avoided.
  • the packaging film can be designed as a single or multilayer film structure.
  • constructions that contain any polyolefin, PET, PA and / or biodegradable plastics such as PLA.
  • the films can be produced by blow molding or by casting. But it is also conceivable that the film layers are laminated or extruded onto a carrier layer. Uniaxial and biaxial stretching of the overall composite or individual layers are conceivable and influence the tearing ability and on-travel properties of the film structure.
  • the structuring can be provided on an outside, inside or between layers.
  • two-layer structures made of PE / PP and OPP / PET are also conceivable as film structures.
  • an aluminum layer can be provided between the two plastic layers.
  • barrier layers are provided which can be arranged both on the outside and in the film structure.
  • the film structure can furthermore be equipped with a print job and / or release coatings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'une feuille de plastique extrudée monocouche ou multicouche, la feuille de plastique étant équipée pendant ou après l'extrusion au moins par sections d'une structure, et l'utilisation d'une feuille fabriquée selon ce procédé dans des buts d'emballage.
EP07730009A 2006-06-08 2007-06-08 Procédé de fabrication d'une feuille de plastique extrudée et utilisation de la feuille de plastique Withdrawn EP2024156A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006027004A DE102006027004A1 (de) 2006-06-08 2006-06-08 Verfahren zum Herstellen einer extrudierten Kunststoff-Folie, sowie Verwendung der Kunststofffolie
PCT/EP2007/055651 WO2007141327A1 (fr) 2006-06-08 2007-06-08 Procédé de fabrication d'une feuille de plastique extrudée et utilisation de la feuille de plastique

Publications (1)

Publication Number Publication Date
EP2024156A1 true EP2024156A1 (fr) 2009-02-18

Family

ID=38362861

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07730009A Withdrawn EP2024156A1 (fr) 2006-06-08 2007-06-08 Procédé de fabrication d'une feuille de plastique extrudée et utilisation de la feuille de plastique

Country Status (6)

Country Link
US (1) US20090134547A1 (fr)
EP (1) EP2024156A1 (fr)
CA (1) CA2654598A1 (fr)
DE (1) DE102006027004A1 (fr)
RU (1) RU2412810C2 (fr)
WO (1) WO2007141327A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007038473C5 (de) * 2007-08-14 2013-11-07 Huhtamaki Films Germany Gmbh & Co. Kg Folienanordnung, Verfahren zu deren Herstellung und Verwendung
DE102009041341A1 (de) 2009-05-19 2010-11-25 Huhtamaki Forchheim Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Leicht zu öffnende Verpackung
US8814430B2 (en) 2010-02-23 2014-08-26 Kraft Foods R&D, Inc. Food package having opening feature
CA2811137A1 (fr) * 2010-08-31 2012-03-08 Huhtamaki Films Germany Gmbh & Co. Kg Procede de fabrication d'un feuille plastique comportant un revetement de polysiloxane durci
DE102011050221A1 (de) * 2011-05-09 2012-11-15 Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Folienmaterial zur Herstellung einer Verpackung sowie Verfahren zur Herstellung und Verwendung
GB2528289A (en) 2014-07-16 2016-01-20 Kraft Foods R&D Inc A die-cut lid and associated container and method
JP6756146B2 (ja) * 2016-04-28 2020-09-16 凸版印刷株式会社 積層体の製造方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6715051A (fr) * 1967-02-27 1968-08-28
GB1301198A (en) * 1969-03-20 1972-12-29 Mobil Oil Corp Method of embossing plastics film and manufacturing a bag structure
DE1959466A1 (de) * 1969-11-27 1971-06-03 Johnson & Johnson Zuschnitte und Behaelter aus thermoplastischen Folien
US3857144A (en) * 1971-07-02 1974-12-31 Mobil Oil Corp Method of embossing limp plastic sheet material
US3984047A (en) * 1973-07-26 1976-10-05 Mobil Oil Corporation Reinforced thin wall plastic bag
US4139669A (en) * 1974-09-09 1979-02-13 Chang Chow M Non-knifing plastic adhesive tape for packaging and sealing purpose
US4165356A (en) * 1978-05-15 1979-08-21 Owens-Illinois, Inc. Method of forming tubular plastic material having a flare-top edge using a blow head
US4298647A (en) * 1979-07-16 1981-11-03 Clopay Corporation Cross-tearable decorative sheet material
US4465729A (en) * 1981-08-05 1984-08-14 Clopay Corporation Cross-tearable plastic films
US4777073A (en) * 1987-03-11 1988-10-11 Exxon Chemical Patents Inc. Breathable films prepared from melt embossed polyolefin/filler precursor films
ATE118188T1 (de) * 1990-04-04 1995-02-15 American National Can Co Kontrollierbare, leicht zu öffnende verpackung.
US5874155A (en) * 1995-06-07 1999-02-23 American National Can Company Easy-opening flexible packaging laminates and packaging materials made therefrom
US20030199218A1 (en) * 1998-10-23 2003-10-23 Mueller Louann S. Ream wrap comprising PLA resin
US6432527B1 (en) * 1999-12-14 2002-08-13 3M Innovative Properties Company Embossed film having controlled tear
WO2003089501A1 (fr) * 2002-04-19 2003-10-30 Gammatron (Pty) Ltd Procede d'augmentation de la resistance a la contrainte hydrostatique d'un polymere
JP4351074B2 (ja) * 2002-04-25 2009-10-28 清二 加川 直線的易裂性熱可塑性樹脂フィルム並びにその製造方法及びその製造装置
DE102005041018A1 (de) * 2005-08-29 2007-03-01 Huhtamaki Forchheim Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Verfahren zum Herstellen einer Kunststoff-Folie

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007141327A1 *

Also Published As

Publication number Publication date
WO2007141327A1 (fr) 2007-12-13
RU2008137087A (ru) 2010-03-20
CA2654598A1 (fr) 2007-12-13
DE102006027004A1 (de) 2007-12-13
RU2412810C2 (ru) 2011-02-27
US20090134547A1 (en) 2009-05-28

Similar Documents

Publication Publication Date Title
WO2007141327A1 (fr) Procédé de fabrication d'une feuille de plastique extrudée et utilisation de la feuille de plastique
EP1885558B2 (fr) Feuille-barriere multicouche coextrudee comportant au moins une couche de feuille a base de copolymere ethylene-alcool vinylique (evoh), son procede de production, et son utilisation
DE2529996C2 (de) Laminat aus mindestens zwei Polymerschichten und Verfahren zu dessen Herstellung
DE69610066T2 (de) Biaxial-0rientierte polypropylenfolie enthaltendes polyesterlaminat und verfahren zu seiner herstellung
DE102005020913B3 (de) Hochfeste Barrierefolie für Verpackungszwecke auf Polypropylenbasis, Verfahren zu ihrer Herstellung und ihre Verwendung
DE60308653T2 (de) Kreuzweise schichtung ausgerichteter folien, herstellungsverfahren dafür und bei dem prozess geeignete coextrusionsdüse
WO2018006980A1 (fr) Pellicule de polyéthylène recyclable
DE3025564A1 (de) Verfahren und vorrichtung zur herstellung mehrschichtiger flachfolien aus thermoplastischen kunststoffen durch coextrusion
EP2874811B1 (fr) Stratifié multicouche pour tubes pourvu d'une couche barrière intégrée ainsi que tube fabriqué à partir de ce stratifié et utilisation d'un tel stratifié
EP3600889B1 (fr) Laminé d'emballage recyclable ayant une résistance à la chaleur améliorée pendant le scellage
EP2374604B1 (fr) Couvercle à feuille destiné à la fermeture d'un récipient et son procédé de fabrication
DE19840991A1 (de) Verfahren zur Herstellung einer biaxial orientierten Folie aus einem geschäumten orientierbaren thermoplastischen Polymer
WO2013087226A1 (fr) Produit en feuille pour l'emballage de produits dans des emballages scellés, réalisés avec ledit produit
DE102005014474A1 (de) Verfahren zum Herstellen einer gereckten Kunststoff-Folie
WO2004050353A2 (fr) Feuille a orientation biaxiale presentant une couche de copolymere ethylene/alcool vinylique (evoh)
DE3239167A1 (de) Coextrudierte thermoplastische verbundfolie und verfahren zu ihrer herstellung
EP2803478B1 (fr) Feuille à plusieurs couches en plastique
WO2020038579A1 (fr) Stratifié d'emballage recyclable, facilement déchirable, à effet barrière satisfaisant, et son procédé de fabrication
DE102004058257A1 (de) Verfahren zum Herstellen einer Trägerbahn sowie Trägerbahn
EP2684675B1 (fr) Polymer film for in-mould labelling
DE202008017949U1 (de) Kunststofffolie mit asymmetrischer Struktur und daraus hergestellte Standbeutelverpackungen
EP1213138A1 (fr) Procédé de fabrication d'une feuille stratifiée
DE102005041018A1 (de) Verfahren zum Herstellen einer Kunststoff-Folie
EP4385730A1 (fr) Film plastique et son procédé de fabrication
DE102015100106A1 (de) Laminat, insbesondere zur Herstellung von Deckelmaterial, Verfahren zu dessen Herstellung sowie Deckelmaterial aus einem solchen Laminat

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: 20080616

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 IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DIE ANDERE ERFINDER HABEN AUF IHRE NENNUNG VERZICH

Inventor name: MUELLER, JOSEF

Inventor name: KELM, ROLAND

17Q First examination report despatched

Effective date: 20090403

DAX Request for extension of the european patent (deleted)
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: 20121127