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DE217252T1 - Thermoplastische mehrschichtverpackungsfolie und daraus hergestellte beutel. - Google Patents

Thermoplastische mehrschichtverpackungsfolie und daraus hergestellte beutel.

Info

Publication number
DE217252T1
DE217252T1 DE198686113010T DE86113010T DE217252T1 DE 217252 T1 DE217252 T1 DE 217252T1 DE 198686113010 T DE198686113010 T DE 198686113010T DE 86113010 T DE86113010 T DE 86113010T DE 217252 T1 DE217252 T1 DE 217252T1
Authority
DE
Germany
Prior art keywords
copolymer
ethylene
film according
film
heat
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.)
Pending
Application number
DE198686113010T
Other languages
English (en)
Inventor
Cesare Milan Quacquarella
Richard Stephen Taino Varese Williams
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.)
WR Grace and Co Conn
Original Assignee
WR Grace and Co Conn
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26327539&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE217252(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from IT22305/85A external-priority patent/IT1190394B/it
Priority claimed from IT8620457A external-priority patent/IT1207999B/it
Application filed by WR Grace and Co Conn filed Critical WR Grace and Co Conn
Publication of DE217252T1 publication Critical patent/DE217252T1/de
Pending legal-status Critical Current

Links

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
    • B32B27/16—Layered products comprising a layer of synthetic resin specially treated, e.g. irradiated
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/04—Homopolymers or copolymers of ethene
    • C09J123/08—Copolymers of ethene
    • C09J123/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C09J123/0815—Copolymers of ethene with aliphatic 1-olefins
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B2038/0052—Other operations not otherwise provided for
    • B32B2038/0076—Curing, vulcanising, cross-linking
    • 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
    • B32B2305/72—Cured, e.g. vulcanised, cross-linked
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • 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
    • B32B2307/732—Dimensional properties
    • B32B2307/734—Dimensional stability
    • B32B2307/736—Shrinkable
    • 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
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • 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
    • B32B2327/00—Polyvinylhalogenides
    • B32B2327/06—PVC, i.e. polyvinylchloride
    • 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
    • B32B2331/00—Polyvinylesters
    • B32B2331/04—Polymers of vinyl acetate, e.g. PVA
    • 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
    • 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
    • B32B2439/70—Food packaging
    • 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
    • B32B2553/00—Packaging equipment or accessories not otherwise provided for
    • 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
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1328—Shrinkable or shrunk [e.g., due to heat, solvent, volatile agent, restraint removal, etc.]
    • 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
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
    • Y10T428/1341—Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
    • 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
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2813—Heat or solvent activated or sealable
    • Y10T428/2817—Heat sealable
    • Y10T428/2826—Synthetic resin or polymer
    • 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
    • Y10T428/3175—Next to addition polymer from unsaturated monomer[s]
    • 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
    • Y10T428/3175—Next to addition polymer from unsaturated monomer[s]
    • Y10T428/31757—Polymer of monoethylenically unsaturated hydrocarbon
    • 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]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31913—Monoolefin polymer
    • 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]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31913—Monoolefin polymer
    • Y10T428/3192—Next to vinyl or vinylidene chloride polymer
    • 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]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31928—Ester, halide or nitrile of addition polymer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Wrappers (AREA)

Claims (13)

0210252 86113010.2 Patentansprüche
1. Thermoplastische Mehrschicht-Verpackungsfolie mit verbesserten Heißschrumpf- und Kaltsiegeleigenschaften, welche mindestens eine äußere Polymerschicht, eine innere heiß versiegelbare Schicht und gegebenenfalls eine Sauerstoffsperrschicht zwischen den besagten inneren und äußeren Schichten aufweist, dadurch gekennzeichnet, daß die Heißsiegelschicht ein Copolymer aus Ethylen und &khgr; bis y Gew.%, bezogen auf das Copolymer, eines a-Olefins mit 4 bis 8 Kohlenstoffatomen je Molekül enthält, wobei &khgr; = 0,5nc + 8 und y = l,25nc + 15 ist (nc ist die Zahl der Kohlenstoff atome in dem a-Olefin) und das Copolymer eine Dichte von weniger als 920 kg/m3 aufweist.
2. Folie gemäß Anspruch 1, dadurch gekennzeichnet, daß die Heißsiegelschicht ein Copolymer aus Ethylen und 12 bis 20 Gew.%, bezogen auf das Copolymer, eines a-01efins mit 4 bis 8 Kohlenstoffatomen enthält.
3. Folie gemäß Anspruch 1, dadurch gekennzeichnet, daß die Heißsiegelschicht ein Copolymer aus Ethylen und 10 bis 20 Gew.%, bezogen auf das Copolymer, Buten(l) enthält, wobei das Copolymer eine Dichte von weniger als 915 km/m3 aufweist.
4. Folie gemäß Anspruch 1, dadurch gekennzeichnet, daß die Heißsiegelschicht ein Copolymer aus Ethylen und 12 bis 25 Gew.%, bezogen auf das Copolymer, Octen(l) enthält, wobei das Copolymer eine Dichte von weniger als 920 kg/m3 aufweist.
5. Folie gemäß einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Heißsiegelschicht weiterhin bis zu 50 Gew.%, bezogen auf die Schichtzusammensetzung, eines Polymeren enthält, welches mit dem besagten Ethylen/a-Olefin-Copolymer
0210252
verträglich und aus der Gruppe ausgewählt ist, welche lineares Polyethylen niederer Dichte (LLDPE), lineares Polyethylen hoher Dichte (LHDPE), Polyethylen niedriger Dichte (LDPE), Ethylen/Vinylacetat (EVA), säuremodifiziertes EVA, Polypropylen, Ethylen/Propylencopolymere, Ionomere und Ethylen/Alkylacrylat-Copolymere mit 1 bis 8 C-Atomen in der jeweiligen Alkylgruppe umfaßt.
6. Folie gemäß Anspruch 5, bei welcher das mit dem besagten Ethylen/a-Olefin-Copolymer verträgliche Polymer ein Ethylen/Alkylacrylat-Copolymer ist, welches ausgewählt ist aus Ethylen/Methylacrylat, Ethylen/Ethylacrylat und Ethylen/-Butylacrylat.
7. Folie gemäß einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die äußere Polymerschicht ein Polymer ist, welches aus der Gruppe ausgewählt ist, welche ein Copolymer von Ethylen und 10 bis 25 Gew.%, bezogen auf das Copolymer, eines a-Olefins mit 4 bis 8 Kohlenstoffatomen, wobei das Copolymer eine Dichte von weniger als 920 kg/m3 aufweist, EVA, Polyamid und Ionomerharze umfaßt.
8. Folie gemäß einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Sauerstoffsperrschicht ein Polymer enthält, welches aus der Gruppe ausgewählt ist, welche Polyvinylidenchlorid (PVDC) und hydrolisierte Ethylen/Vinylacetat-Copolymere (EVOH) umfaßt.
9. Folie gemäß einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß eine Klebstoffschicht und/oder eine die Haftung verbessernde Schicht zwischen den besagten anderen Schichten angeordnet ist.
10. Folie gemäß einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß wenigstens die Heißsiegelschicht durch Strahlung vernetzt ist.
0210252
11. Folie gemäß Anspruch 10, dadurch gekennzeichnet, daß die Sauerstoff sperrschicht EVOH enthält und daß die gesamte Mehrschichtfolie bestrahlt ist.
12. Ein an den Kanten verschweißter Beutel aus der Folie der Ansprüche 1 bis 11, bei welchem die Folie so gefaltet ist, daß die Faltung den Boden des Beutels bildet und die seitlichen Siegelnähte beide Seiten des Beutels verschließen.
13. Beutel aus einer schlauchförmigen Folie gemäß einem der Ansprüche 1 bis 11, bei welchem der Boden des Beutels von einer Versiegelung quer über den flachgelegten Folienschlauch gebildet wird und die Beutelöffnung dadurch erhalten ist, daß der Schlauch in einem vorgewählten Abstand von der Querversiegelung abgeschnitten ist.
DE198686113010T 1985-09-30 1986-09-20 Thermoplastische mehrschichtverpackungsfolie und daraus hergestellte beutel. Pending DE217252T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT22305/85A IT1190394B (it) 1985-09-30 1985-09-30 Pellicola multistrato termoplastica per imballaggio e sacchetti da essa ricavati
IT8620457A IT1207999B (it) 1986-05-16 1986-05-16 Pellicola multistrato termoplastica per imballaggio e sacchetti da essa ricavati.

Publications (1)

Publication Number Publication Date
DE217252T1 true DE217252T1 (de) 1989-11-16

Family

ID=26327539

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8686113010T Expired - Lifetime DE3682473D1 (de) 1985-09-30 1986-09-20 Thermoplastische mehrschichtverpackungsfolie und daraus hergestellte beutel.
DE198686113010T Pending DE217252T1 (de) 1985-09-30 1986-09-20 Thermoplastische mehrschichtverpackungsfolie und daraus hergestellte beutel.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE8686113010T Expired - Lifetime DE3682473D1 (de) 1985-09-30 1986-09-20 Thermoplastische mehrschichtverpackungsfolie und daraus hergestellte beutel.

Country Status (11)

Country Link
US (1) US4801486A (de)
EP (1) EP0217252B1 (de)
JP (1) JPH0773904B2 (de)
BR (1) BR8604693A (de)
CA (1) CA1303473C (de)
DE (2) DE3682473D1 (de)
DK (1) DK170038B1 (de)
ES (1) ES2003111A6 (de)
FI (1) FI88375C (de)
MX (1) MX168438B (de)
NZ (1) NZ217626A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9091025B2 (en) 2009-03-13 2015-07-28 Trespa International B.V. Method for manufacturing a resin-impregnated decorative paper, and decorative panel

Families Citing this family (106)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5004647A (en) * 1986-03-21 1991-04-02 W. R. Grace & Co.-Conn. Oxygen barrier biaxially oriented film
EP0243510B1 (de) * 1986-04-15 1991-10-02 W.R. Grace & Co.-Conn. Mehrschichtiger Verpackungsfilm
DE3706618A1 (de) * 1987-03-01 1988-09-15 Wolff Walsrode Ag Verfahren zur verlaengerung der haltbarkeit von guetern und dafuer geeignete beutel
US4837084A (en) * 1987-07-02 1989-06-06 W. R. Grace & Co.-Conn. Thermoplastic multi-layer packaging film and bags made therefrom
US4927691A (en) * 1987-10-16 1990-05-22 W. R. Grace & Co.-Conn. Implosion resistant films
US4937112A (en) * 1987-12-18 1990-06-26 W. R. Grace & Co.-Conn. High strength coextruded film for chub packaging
US4977022A (en) * 1988-03-15 1990-12-11 W. R. Grace & Co.-Conn. Barrier stretch film
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NZ217626A (en) 1989-11-28
AU6310286A (en) 1987-04-02
US4801486A (en) 1989-01-31
EP0217252A2 (de) 1987-04-08
DK463186D0 (da) 1986-09-29
JPH0639978A (ja) 1994-02-15
DK463186A (da) 1987-03-31
MX168438B (es) 1993-05-25
EP0217252B1 (de) 1991-11-13
FI863919A0 (fi) 1986-09-29
ES2003111A6 (es) 1988-10-16
FI88375C (fi) 1993-05-10
BR8604693A (pt) 1987-06-23
CA1303473C (en) 1992-06-16
FI863919A (fi) 1987-03-31
AU582902B2 (en) 1989-04-13
DK170038B1 (da) 1995-05-08
EP0217252A3 (en) 1988-10-05
FI88375B (fi) 1993-01-29
DE3682473D1 (de) 1991-12-19
JPH0773904B2 (ja) 1995-08-09

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