WO1998022281A1 - Emballage torsade - Google Patents

Emballage torsade Download PDF

Info

Publication number
WO1998022281A1
WO1998022281A1 PCT/AT1997/000248 AT9700248W WO9822281A1 WO 1998022281 A1 WO1998022281 A1 WO 1998022281A1 AT 9700248 W AT9700248 W AT 9700248W WO 9822281 A1 WO9822281 A1 WO 9822281A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
styrene
packaging
packaging material
weight
Prior art date
Application number
PCT/AT1997/000248
Other languages
German (de)
English (en)
Inventor
Olle Mannertorp
Erich Kreutzer
Original Assignee
Teich Aktiengesellschaft
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 Teich Aktiengesellschaft filed Critical Teich Aktiengesellschaft
Priority to BR9707156A priority Critical patent/BR9707156A/pt
Priority to EE9800217A priority patent/EE9800217A/xx
Priority to PL97327926A priority patent/PL327926A1/xx
Priority to AU49342/97A priority patent/AU4934297A/en
Priority to EP97911952A priority patent/EP0885120A1/fr
Publication of WO1998022281A1 publication Critical patent/WO1998022281A1/fr
Priority to NO983296A priority patent/NO983296L/no

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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (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
    • B32B2323/00—Polyalkenes
    • B32B2323/10—Polypropylene
    • 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
    • B32B2325/00—Polymers of vinyl-aromatic compounds, e.g. polystyrene
    • 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

Definitions

  • the invention relates to a packaging material for twist packaging and a twist packaging consisting of this packaging material.
  • a known way of closing full wraps for packaging purposes, in particular of small packaging goods such as candy, is twisting or twisting.
  • the packaging material is wrapped in the packaging material and then closed on one or both sides by twisting the packaging material.
  • twist packs it is necessary that the packaging material is rotatable, that is twistable, on the one hand, and maintains its screwed-in shape on the other hand. This is the only way to ensure that the goods to be packaged are not released from the packaging by automatically opening the film during transport and storage.
  • This twist behavior is either due to high surface friction, e.g. with polypropylene (PP) and / or by breaking open the internal material structure, e.g. with cellophane.
  • PP polypropylene
  • the object of the invention is therefore to provide a packaging material with satisfactory twist behavior and at the same time good machinability.
  • a multilayer packaging material for twist packaging produced by coextrusion which consists of at least one layer A, which is formed from a polypropylene-containing plastic, and at least one layer B, which contains a styrene / styrene-butadiene copolymer blend .
  • the layers A preferably adjoin the layer B on both sides.
  • the packaging material according to the invention also has the advantages that layer A contains a sealable polypropylene copolymer and layer B contains 15-25% by weight of styrene and 75-85% by weight of styrene-butadiene copolymer based on 100% by weight. of the total weight of layer B.
  • the invention further relates to a twist packaging for lumpy packaging goods such as candies, which can be produced from the aforementioned packaging material.
  • layers A are attached to the layer B on both sides by coextrusion, so that a multilayer composite with the structure A-B-A is formed.
  • the layer thicknesses are selected from the following percentage ranges, the sum of which must each amount to 100% of the total layer thickness.
  • the materials of layer A are polypropylene (PP) -containing plastics or blends.
  • the PP can be both a homopolymer and a copolymer or a mixture (blend) thereof.
  • a copolymer provides the advantage of additionally to ⁇ sealability against itself, against a PP homo-polymer or PP blends.
  • the layer composition according to A can be modified by adding additives.
  • Layer B consists of a styrene / styrene-butadiene copolymer blend, the so-called “general purpose polystyrene” (crystal styrene) being suitable as the styrene component.
  • Polystyrene with a molecular weight of greater than 200,000 and a molecular weight distribution of 2-3 is particularly preferred.
  • Suitable styrene-butadiene copolymers are styrene-butadiene-styrene (SBS) and styrene-butadiene rubber (SBR) types with 10-90% by weight of styrene or 10-90% by weight of butadiene on the total copolymer weight. Very good results can be achieved with a butadiene content of 10 to 36% by weight.
  • SBS styrene-butadiene-styrene
  • SBR styrene-butadiene rubber
  • a blend of 15-25% by weight of high molecular weight styrene and a styrene-butadiene copolymer fraction of 75-85% by weight is particularly preferred.
  • the sum of the individual layers must total 100% of the total layer thickness. Although these multilayer composites have a high level of rigidity, they are more difficult to manufacture. To improve the adhesion of the layers to one another, adhesion promoters such as EVA, EAA, etc. can be used in a small thickness.
  • the outermost layer of material is formed by the PP-containing layer A.
  • the water and fat resistance and the decorative design are provided by printing or metallizing the packaging material according to the invention.

Abstract

L'invention concerne un matériau d'emballage multicouche coextrudé destiné à des emballages torsadés. Ce matériau est constitué d'une couche A en plastique contenant du polypropylène et d'au moins une couche B contenant un mélange copolymère de styrène/styrène-butadiène.
PCT/AT1997/000248 1996-11-18 1997-11-18 Emballage torsade WO1998022281A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BR9707156A BR9707156A (pt) 1996-11-18 1997-11-18 Embalagem de torção
EE9800217A EE9800217A (et) 1996-11-18 1997-11-18 Twist-pakend
PL97327926A PL327926A1 (en) 1996-11-18 1997-11-18 Screwed together package
AU49342/97A AU4934297A (en) 1996-11-18 1997-11-18 Twist packaging
EP97911952A EP0885120A1 (fr) 1996-11-18 1997-11-18 Emballage torsade
NO983296A NO983296L (no) 1996-11-18 1998-07-16 Vri-emballasje

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA2010/96 1996-11-18
AT0201096A AT405628B (de) 1996-11-18 1996-11-18 Verwendung eines durch coextrusion hergestellten mehrschichtigen verpackungsmaterials für twistverpackungen

Publications (1)

Publication Number Publication Date
WO1998022281A1 true WO1998022281A1 (fr) 1998-05-28

Family

ID=3525895

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1997/000248 WO1998022281A1 (fr) 1996-11-18 1997-11-18 Emballage torsade

Country Status (9)

Country Link
EP (1) EP0885120A1 (fr)
AT (1) AT405628B (fr)
AU (1) AU4934297A (fr)
BR (1) BR9707156A (fr)
CA (1) CA2243299A1 (fr)
EE (1) EE9800217A (fr)
NO (1) NO983296L (fr)
PL (1) PL327926A1 (fr)
WO (1) WO1998022281A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002062576A1 (fr) * 2001-02-05 2002-08-15 Nordenia Deutschland Gronau Gmbh Feuille d'emballage, en particulier feuille d'emballage fermee par torsion, et procede de fabrication de ladite feuille
WO2002066247A1 (fr) * 2001-02-17 2002-08-29 Nordenia Deutschland Gronau Gmbh Film d"etiquetage, son procede de production et son utilisation
WO2003004268A1 (fr) * 2001-07-04 2003-01-16 Nova-Plast S.R.L. Utilisation d'une pellicule de conditionnement multicouche pour l'emballage, pellicule de conditionnement multicouche et emballage pouvant etre ferme par torsion
EP1419975A2 (fr) * 2002-11-14 2004-05-19 Alcan Packaging Italia S.r.l. Emballage en particulier pour produits alimentaires
WO2007058783A1 (fr) * 2005-11-15 2007-05-24 Dow Global Technologies Inc. Etiquette retractable orientee multicouche
DE112008001811T5 (de) 2007-07-16 2010-07-01 Rkw Se Folien für Etikettenmaterial

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB993981A (en) * 1961-10-10 1965-06-02 William Robert Brown Improvements in or relating to twist sealable sheet material and container, and method of making the same
DE7441421U (de) * 1974-12-12 1975-04-10 Ebert Kg Einwickler fuer Bonbons u dgl
JPS5119079A (ja) * 1974-08-09 1976-02-16 Sumitomo Bakelite Co Fukugofuirumunaishishiito
DE3611341A1 (de) * 1986-04-04 1987-10-08 Hoechst Ag Opake folie fuer den bonbondreheinschlag
DE9111671U1 (fr) * 1991-09-19 1991-11-14 Ebert Folien Ag, 6200 Wiesbaden, De
EP0627305A2 (fr) * 1993-05-29 1994-12-07 Hoechst Aktiengesellschaft Film multicouche en polypropylène biaxiallement orienté contenant une résine, son procédé de fabrication et son utilisation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5957748A (ja) * 1982-09-29 1984-04-03 電気化学工業株式会社 共押出積層シ−ト
IT1251530B (it) * 1991-10-31 1995-05-16 Enichem Polimeri Accoppiato multistrato termoplastico

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB993981A (en) * 1961-10-10 1965-06-02 William Robert Brown Improvements in or relating to twist sealable sheet material and container, and method of making the same
JPS5119079A (ja) * 1974-08-09 1976-02-16 Sumitomo Bakelite Co Fukugofuirumunaishishiito
DE7441421U (de) * 1974-12-12 1975-04-10 Ebert Kg Einwickler fuer Bonbons u dgl
DE3611341A1 (de) * 1986-04-04 1987-10-08 Hoechst Ag Opake folie fuer den bonbondreheinschlag
DE9111671U1 (fr) * 1991-09-19 1991-11-14 Ebert Folien Ag, 6200 Wiesbaden, De
EP0627305A2 (fr) * 1993-05-29 1994-12-07 Hoechst Aktiengesellschaft Film multicouche en polypropylène biaxiallement orienté contenant une résine, son procédé de fabrication et son utilisation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 7614, Derwent World Patents Index; Class A18, AN 76-25055X, XP002052914 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002062576A1 (fr) * 2001-02-05 2002-08-15 Nordenia Deutschland Gronau Gmbh Feuille d'emballage, en particulier feuille d'emballage fermee par torsion, et procede de fabrication de ladite feuille
WO2002066247A1 (fr) * 2001-02-17 2002-08-29 Nordenia Deutschland Gronau Gmbh Film d"etiquetage, son procede de production et son utilisation
US6783864B2 (en) 2001-02-17 2004-08-31 Nordenia Deutschland Gronau Gmbh Labeling film, method for production and use thereof
WO2003004268A1 (fr) * 2001-07-04 2003-01-16 Nova-Plast S.R.L. Utilisation d'une pellicule de conditionnement multicouche pour l'emballage, pellicule de conditionnement multicouche et emballage pouvant etre ferme par torsion
EP1419975A2 (fr) * 2002-11-14 2004-05-19 Alcan Packaging Italia S.r.l. Emballage en particulier pour produits alimentaires
EP1419975A3 (fr) * 2002-11-14 2005-03-30 Alcan Packaging Italia S.r.l. Emballage en particulier pour produits alimentaires
US7128210B2 (en) 2002-11-14 2006-10-31 Alcan Packaging Italia S.R.L. Package particularly for packaging food products
WO2007058783A1 (fr) * 2005-11-15 2007-05-24 Dow Global Technologies Inc. Etiquette retractable orientee multicouche
US8541077B2 (en) 2005-11-15 2013-09-24 Dow Global Technologies Llc Oriented multi-layer shrink labels
DE112008001811T5 (de) 2007-07-16 2010-07-01 Rkw Se Folien für Etikettenmaterial

Also Published As

Publication number Publication date
AU4934297A (en) 1998-06-10
EE9800217A (et) 1998-12-15
BR9707156A (pt) 1999-05-18
CA2243299A1 (fr) 1998-05-28
EP0885120A1 (fr) 1998-12-23
NO983296L (no) 1998-09-17
PL327926A1 (en) 1999-01-04
NO983296D0 (no) 1998-07-16
ATA201096A (de) 1999-02-15
AT405628B (de) 1999-10-25

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