WO1995029805A1 - Container - Google Patents

Container Download PDF

Info

Publication number
WO1995029805A1
WO1995029805A1 PCT/EP1995/001541 EP9501541W WO9529805A1 WO 1995029805 A1 WO1995029805 A1 WO 1995029805A1 EP 9501541 W EP9501541 W EP 9501541W WO 9529805 A1 WO9529805 A1 WO 9529805A1
Authority
WO
WIPO (PCT)
Prior art keywords
petg
container
layer
polyethylene
inner layer
Prior art date
Application number
PCT/EP1995/001541
Other languages
German (de)
French (fr)
Inventor
Johannes Schneider
Dietholf Mehl
Albert Stöffler
Detlef Hollenberg
Original Assignee
Henkel Kommanditgesellschaft Auf Aktien
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 Henkel Kommanditgesellschaft Auf Aktien filed Critical Henkel Kommanditgesellschaft Auf Aktien
Publication of WO1995029805A1 publication Critical patent/WO1995029805A1/en

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
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/0005—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor characterised by the 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
    • B32B1/00—Layered products having a general shape other than plane
    • B32B1/08—Tubular products
    • 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
    • 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
    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
    • B65D1/0215—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features multilayered
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0065—Permeability to gases
    • B29K2995/0067—Permeability to gases non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7158—Bottles
    • 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

Definitions

  • the invention relates to a container made of plastic, which is formed by an extrusion blow molding process from a two-layer hose, the hose having a PETG (glycol-modified polyethylene terephthalate) inner layer and a PE or PP (polyethylene or polypropylene) outer layer an adhesion promoter located between them is formed.
  • PETG glycol-modified polyethylene terephthalate
  • PE or PP polyethylene or polypropylene
  • Containers made of plastic as packaging material for liquid cleaning agents, personal care products or the like are known, for. B. from DE-PS 25 28 954 or DE 37 44 639 AI. These extruded from a two-layer thermoplastic plastic container, the outer surface is particularly shiny, while the inner layer z. B. can be colored, especially have good presentation properties.
  • active ingredients eg. B. pigments, immigrate into the container material made of polyethylene, which are then missing in the product and deteriorate the product properties.
  • containers are also known which consist exclusively of PETG, in which there is no problem with the penetration of product active substances into the container.
  • PETG has very poor water vapor barrier properties, so that the containers retract strongly, which is intolerable.
  • a generic container is known from US-A-4,846,359.
  • the PETG inner layer is detached and thus the effect desired by the two-layer structure, namely one
  • surfactants and / or emulsifiers contained in hair tinting agents are responsible for this detachment of the PETG inner layer.
  • the object of the invention is therefore to provide an improved container made of plastic which on the one hand has an adequate water vapor barrier and on the other hand prevents the active substances from migrating into the container wall.
  • adhesion promoter is an anhydride-modified polyolefin, in particular polyethylene polypropylene or polybutylene.
  • the two thermoplastic materials described can be bonded to one another well and permanently, even under the action of surfactant and / or emulsifier-containing hair tinting agents, and form a PETG-PE or PP Hose can be designed.
  • the two plastics from two extruders are squeezed through slot nozzles which are arranged in an annular nozzle, the adhesive agent being squeezed through a third slot nozzle at the same time.
  • the two-layer bottle formed by blowing air has a good water vapor barrier due to the outside PE or PP layer, the PETG inner layer prevents the active ingredient from migrating out.
  • the various plastics are permanently and firmly bonded to one another and the barrier properties of the two plastic layers are increased overall.
  • Suitable adhesion promoters are polymers which are compatible both with polyolefins such as polyethylene and with polyesters such as polyethylene glycol terephthalate (PET).
  • Suitable adhesion promoters are anhydride-modified polyolefins, e.g. B. anhydride modified polyethylene polypropylene or polybutylene. Copolymers of the olefins and maleic anhydride mentioned are particularly suitable.
  • Ad er SE 800 adhesion promoter has proven particularly suitable from Mitsui Petrochemical Ind., Ltd. Tokyo, Japan highlighted, with which it is surprisingly particularly successful to permanently and firmly bond these two thermoplastics together.
  • the PETG inner layer and the PE or PP outer layer in bottle-shaped containers remain permanently and firmly bonded to one another with the aid of an adhesion promoter according to the invention, so that the desired effects - an adequate water vapor barrier on the one hand and a barrier property against the migration of active ingredients on the other - is permanently maintained.
  • the container inner layer preferably consists of Kodar® PETG copolyester 6763 from Eastman Chemical Products, Inc., Kingsport, Tennessee, USA, described, for example, in the company publication, publication number MB-82A, October 1983.
  • Fig. 1 shows a schematic representation, partly in section, of a container according to the invention
  • FIG. 1st is an enlarged detail of FIG. 1st
  • a container 1 in bottle form for a liquid product e.g. B. a hair care product, in particular a surfactant and / or emulsifier-containing hair tonic, has a wall 2, the outer surface of which is designated 3, and an opening 4.
  • the wall 2 consists of an inner layer 5 and an outer layer 6.
  • the inner layer 5 is made of PETG (glycol-modified polyethylene terephthalate) and the outer layer of PE (polyethylene) or PP (polypropylene).
  • An adhesion promoter 7, for example Admer SE 800 from Mitsui Petrochemical Ind., Ltd., is located between the two layers 5 and 6. Tokyo, Japan made from one anhydride modified polyolefin.
  • the container 1 is formed by an extrusion blow molding process from a tube produced by coextrusion of the two polymers (PETG and PE or PP), including the adhesion promoter 7.

Abstract

The proposed plastic container (1) is produced by an extrusion blowing process from a double-layer tube. The aim of the invention is to improve the tube, which consists of an inner layer (5) of glycol-modified polyethylene terephthalate (PETG), an outer layer (6) of polyethylene (PE) or polypropylene (PP) and an intermediate adhesive (7). The improvement is achieved by the use as adhesive of an anhydride-modified polyolefine, especially polyethylene-propylene or polybutylene.

Description

"Behälter""Container"
Die Erfindung betrifft einen Behälter aus Kunststoff, welcher durch ein Extrusionsblasverfahren aus einem zweischichtigen Schlauch gebildet ist, wobei der Schlauch von einer PETG (mit Glycol modifiziertes Polyethylen- terephthalat)-Innenschicht und einer PE oder PP (Polyethylen oder Poly- propylen)-Außenschicht mit einem dazwischen befindlichen Haftvermittler gebildet ist.The invention relates to a container made of plastic, which is formed by an extrusion blow molding process from a two-layer hose, the hose having a PETG (glycol-modified polyethylene terephthalate) inner layer and a PE or PP (polyethylene or polypropylene) outer layer an adhesion promoter located between them is formed.
Behälter aus Kunststoff als Verpackungsmaterial für flüssige Reinigungs¬ mittel, Körperpflegemittel oder dergleichen sind bekannt, z. B. aus DE-PS 25 28 954 oder DE 37 44 639 AI. Diese aus einem zweischichtigen thermo¬ plastischen Kunststoff extrudierten Behälter, deren Außenfläche besonders glänzend ist, während die Innenschicht z. B. eingefärbt werden kann, weisen vor allem gute Präsentationseigenschaften auf. Von Nachteil bei diesem Behälter ist, daß bei bestimmten Produkten Produktwirkstoffe, z. B. Pigmente, in das Behältermaterial aus Polyethylen einwandern, welche dann im Produkt fehlen und die Produkteigenschaften verschlechtern.Containers made of plastic as packaging material for liquid cleaning agents, personal care products or the like are known, for. B. from DE-PS 25 28 954 or DE 37 44 639 AI. These extruded from a two-layer thermoplastic plastic container, the outer surface is particularly shiny, while the inner layer z. B. can be colored, especially have good presentation properties. The disadvantage of this container is that in certain products, active ingredients, eg. B. pigments, immigrate into the container material made of polyethylene, which are then missing in the product and deteriorate the product properties.
Grundsätzlich sind auch Behälter, die ausschließlich aus PETG bestehen, bekannt, bei welchen das Problem des Einwanderns von Produktwirkstoffen in den Behälter nicht besteht. Allerdings weist PETG sehr schlechte Wasser¬ dampfsperreigenschaften auf, so daß sich die Behälter stark einziehen, was nicht tolerierbar ist.Basically, containers are also known which consist exclusively of PETG, in which there is no problem with the penetration of product active substances into the container. However, PETG has very poor water vapor barrier properties, so that the containers retract strongly, which is intolerable.
Ein gattungsgemäßer Behälter ist aus der US-A-4,846,359 bekannt. Bei Ver¬ suchen mit Haartönungsmittel ist nun festgestellt worden, daß sich bei Verwendung von für die Verbindung von PE- bzw. PP-Schichten mit PETG- Schichten bekannten Haftvermittlern die PETG-Innenschicht ablöst und damit der durch den zweischichtigen Aufbau gewünschte Effekt, nämlich einen Be¬ hälter zu schaffen, welcher einerseits eine ausreichende Wasserdampfsperre aufweist und andererseits das Auswandern von Produktwirkstoffen in die Behälterwandung verhindert, nicht mehr gegeben ist. Es wird vermutet, daß für dieses Ablösen der PETG-Innenschicht in Haartönungsmittel enthaltene Tenside und/oder Emulgatoren verantwortlich sind.A generic container is known from US-A-4,846,359. In tests with hair tinting agents it has now been found that when using adhesion promoters known for the connection of PE or PP layers to PETG layers, the PETG inner layer is detached and thus the effect desired by the two-layer structure, namely one To create containers which on the one hand have an adequate water vapor barrier and on the other hand the emigration of active ingredients into the Container wall prevented, no longer exists. It is suspected that surfactants and / or emulsifiers contained in hair tinting agents are responsible for this detachment of the PETG inner layer.
Die Aufgabe der Erfindung besteht deshalb darin, einen verbesserten Be¬ hälter aus Kunststoff zu schaffen, welcher einerseits eine ausreichende Wasserdampfsperre aufweist und andererseits das Auswandern von Produkt¬ wirkstoffen in die Behälterwandung verhindert.The object of the invention is therefore to provide an improved container made of plastic which on the one hand has an adequate water vapor barrier and on the other hand prevents the active substances from migrating into the container wall.
Diese Aufgabe wird mit einem Behälter der eingangs bezeichneten Art erfin¬ dungsgemäß dadurch gelöst, daß der Haftvermittler ein anhydrid modifizier¬ tes Polyolefin, insbesondere Polyethylenpolypropylen oder Polybutylen ist.This object is achieved according to the invention with a container of the type mentioned at the outset in that the adhesion promoter is an anhydride-modified polyolefin, in particular polyethylene polypropylene or polybutylene.
Es hat sich überraschend herausgestellt, daß sich unter Verwendung eines solchen Haftvermittlers die beiden beschriebenen thermoplastischen Kunst¬ stoffe gut und dauerhaft - auch unter Einwirkung von tensid- und/oder emulgatorhaltigen Haartönungsmitteln - miteinander verbinden lassen und zu einem PETG-PE- bzw. PP-Schlauch ausgestaltet werden können. Hierzu werden die beiden Kunststoffe aus zwei Extrudern durch Schlitzdüsen, die in einer Ringdüse angeordnet sind, hindurchgequetscht, wobei gleichzeitig durch eine dritte Schlitzdüse der Haftvermittler hindurchgequetscht wird. Die durch Einblasen von Luft gebildete zweischichtige Flasche weist durch die außen liegende PE- bzw. PP-Schicht eine gute Wasserdampfsperre auf, die PETG-Innenschicht verhindert das Auswandern des Produktwirkstoffes. Durch die Auswahl des geeigneten Haftvermittlers werden die verschiedenen Kunst¬ stoffe dauerhaft und fest miteinander verbunden und die Barriereeigen¬ schaften der beiden Kunststoffschichten insgesamt erhöht.It has surprisingly been found that, using such an adhesion promoter, the two thermoplastic materials described can be bonded to one another well and permanently, even under the action of surfactant and / or emulsifier-containing hair tinting agents, and form a PETG-PE or PP Hose can be designed. For this purpose, the two plastics from two extruders are squeezed through slot nozzles which are arranged in an annular nozzle, the adhesive agent being squeezed through a third slot nozzle at the same time. The two-layer bottle formed by blowing air has a good water vapor barrier due to the outside PE or PP layer, the PETG inner layer prevents the active ingredient from migrating out. Through the selection of the suitable adhesion promoter, the various plastics are permanently and firmly bonded to one another and the barrier properties of the two plastic layers are increased overall.
Geeignete Haftvermittler sind Polymere, die sowohl mit Polyolefinen wie Polyethylen als auch mit Polyestern wie Polyethylenglycolterephthalat (PET) verträglich sind. Geeignete Haftvermittler sind anhydrid modifi¬ zierte Polyolefine, z. B. anhydrid modifiziertes Polyethylenpolypropylen oder Polybutylen. Besonders geeignet sind Copolymere aus den genannten Olefinen und Maleinsäureanhydrid.Suitable adhesion promoters are polymers which are compatible both with polyolefins such as polyethylene and with polyesters such as polyethylene glycol terephthalate (PET). Suitable adhesion promoters are anhydride-modified polyolefins, e.g. B. anhydride modified polyethylene polypropylene or polybutylene. Copolymers of the olefins and maleic anhydride mentioned are particularly suitable.
Als besonders geeignet hat sich ein Haftvermittler des Typs Ad er SE 800 der Firma Mitsui Petrochemical Ind., Ltd. Tokyo, Japan herausgestellt, mit dem es auf überraschende Weise besonders gut gelingt, diese beiden Ther¬ moplaste dauerhaft und fest miteinander zu verbinden.An Ad er SE 800 adhesion promoter has proven particularly suitable from Mitsui Petrochemical Ind., Ltd. Tokyo, Japan highlighted, with which it is surprisingly particularly successful to permanently and firmly bond these two thermoplastics together.
Insbesondere auch unter der Einwirkung von tesid- und/oder emulgatorhal¬ tigen Haartönungsmitteln bleiben bei flaschenförmigen Behältern die PETG- Innenschicht und die PE- bzw. PP-Außenschicht mit Hilfe eines erfindungs¬ gemäßen Haftvermittlers dauerhaft und fest miteinander verbunden, so daß die gewünschten Effekte - eine ausreichende Wasserdampfsperre einerseits und eine Barriereeigenschaft gegen das Auswandern von Produktwirkstoffen andererseits - dauerhaft erhalten bleibt.In particular, even under the action of surfactant and / or emulsifier-containing hair tinting agents, the PETG inner layer and the PE or PP outer layer in bottle-shaped containers remain permanently and firmly bonded to one another with the aid of an adhesion promoter according to the invention, so that the desired effects - an adequate water vapor barrier on the one hand and a barrier property against the migration of active ingredients on the other - is permanently maintained.
Die Behälterinnenschicht besteht bevorzugt aus Kodar^ PETG Copolyester 6763 der Firma Eastman Chemical Products, Inc., Kingsport, Tennessee, USA, beschrieben beispielsweise in der Firmenpublikation, Publikations Nr. MB-82A, Oktober 1983.The container inner layer preferably consists of Kodar® PETG copolyester 6763 from Eastman Chemical Products, Inc., Kingsport, Tennessee, USA, described, for example, in the company publication, publication number MB-82A, October 1983.
Die Erfindung ist nachstehend anhand der Zeichnung beispielsweise näher erläutert. Diese zeigt inThe invention is explained below with reference to the drawing, for example. This shows in
Fig. 1 in schematischer Darstellung teilweise im Schnitt einen erfindungsgemäßen Behälter undFig. 1 shows a schematic representation, partly in section, of a container according to the invention
Fig. 2 ein vergrößertes Detail der Fig. 1.2 is an enlarged detail of FIG. 1st
Ein Behälter 1 in Flaschenform für ein flüssiges Produkt, z. B. ein Haar¬ pflegemittel, insbesondere ein tensid- und/oder emulgatorhaltiges Haartö¬ nungsmittel, weist eine Wandung 2, deren Außenfläche mit 3 bezeichnet ist, und eine Öffnung 4 auf. Die Wandung 2 besteht aus einer inneren Schicht 5 und einer äußeren Schicht 6. Dabei ist die innere Schicht 5 aus PETG (mit Glycol modifiziertes Polyethylenterephthalat) und die äußere Schicht aus PE (Polyethylen) oder PP (Polypropylen) gebildet. Zwischen beiden Schich¬ ten 5 und 6 befindet sich ein Haftvermittler 7, beispielsweise Admer SE 800 der Firma Mitsui Petrochemical Ind., Ltd. Tokyo, Japan, der aus einem anhydrid modifizierten Polyolefin besteht.A container 1 in bottle form for a liquid product, e.g. B. a hair care product, in particular a surfactant and / or emulsifier-containing hair tonic, has a wall 2, the outer surface of which is designated 3, and an opening 4. The wall 2 consists of an inner layer 5 and an outer layer 6. The inner layer 5 is made of PETG (glycol-modified polyethylene terephthalate) and the outer layer of PE (polyethylene) or PP (polypropylene). An adhesion promoter 7, for example Admer SE 800 from Mitsui Petrochemical Ind., Ltd., is located between the two layers 5 and 6. Tokyo, Japan made from one anhydride modified polyolefin.
Der Behälter 1 wird durch ein Extrusionsblasverfahren aus einem durch Coextrusion der beiden Polymere (PETG und PE bzw. PP) hergestellten Schlauch unter Einschluß des Haftvermittlers 7 gebildet. The container 1 is formed by an extrusion blow molding process from a tube produced by coextrusion of the two polymers (PETG and PE or PP), including the adhesion promoter 7.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Behälter aus Kunststoff, welcher durch ein Extrusionsblasverfahren aus einem zweischichtigen Schlauch gebildet ist, wobei der Schlauch von einer PETG (mit Glycol modifiziertes Polyethylenterephthalat)-Innen- schicht und einer PE oder PP (Polyethylen oder Polypropylen)-Außen- schicht mit einem dazwischen befindlichen Haftvermittler gebildet ist, d a d u r c h g e k e n n z e i c h n e t, daß der Haftvermittler ein anhydrid modifiziertes Polyolefin, insbe¬ sondere Polyethylenpolypropylen oder Polybutylen ist.1. Container made of plastic, which is formed by an extrusion blow molding process from a two-layer hose, the hose having a PETG (glycol-modified polyethylene terephthalate) inner layer and a PE or PP (polyethylene or polypropylene) outer layer with an intermediate layer located adhesion promoter is formed, characterized in that the adhesion promoter is an anhydride modified polyolefin, in particular polyethylene polypropylene or polybutylene.
2. Behälter nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, daß die Innenschicht aus PETG 6763 mit einem mittleren numerischen Molekulargewicht (MU) von etwa 26.000 besteht. 2. Container according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the inner layer consists of PETG 6763 with an average numerical molecular weight (MU) of about 26,000.
PCT/EP1995/001541 1994-05-03 1995-04-24 Container WO1995029805A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4415549.2 1994-05-03
DE4415549A DE4415549A1 (en) 1994-05-03 1994-05-03 container

Publications (1)

Publication Number Publication Date
WO1995029805A1 true WO1995029805A1 (en) 1995-11-09

Family

ID=6517157

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1995/001541 WO1995029805A1 (en) 1994-05-03 1995-04-24 Container

Country Status (2)

Country Link
DE (1) DE4415549A1 (en)
WO (1) WO1995029805A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111453121A (en) * 2020-04-10 2020-07-28 苏州通成化妆品包装有限公司 Double-layer composite PETG bottle and production process

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0961731B1 (en) * 1996-07-05 2004-01-02 Wella Aktiengesellschaft Hollow plastic structure with a high level of chemical stability
CN1108960C (en) 1997-03-31 2003-05-21 普罗克特和甘保尔公司 Multi-layered plastic container providing good product drainage
WO1998043881A1 (en) * 1997-03-31 1998-10-08 The Procter & Gamble Company Multi-layered plastic container providing good product drainage
FR2774078B1 (en) * 1998-01-29 2000-03-03 Soplaril Sa FILM FOR THE WRAPPING OF OBJECTS

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5983651A (en) * 1982-11-06 1984-05-15 住友ベークライト株式会社 Package
JPS6097849A (en) * 1983-11-02 1985-05-31 三菱化学株式会社 Composite film or sheet which can be thermocompression-bonded
JPS63290742A (en) * 1987-05-22 1988-11-28 Dainippon Printing Co Ltd Laminated material having excellent properties in holding fragrance
US4846359A (en) * 1987-12-18 1989-07-11 The Procter & Gamble Company Multi-layered plastic bottle having integrally formed handle and method of making
WO1989008556A1 (en) * 1988-03-17 1989-09-21 Eastman Kodak Company Multilayered sheets having excellent adhesion
EP0365266A2 (en) * 1988-10-17 1990-04-25 Nippon Petrochemicals Company, Limited Multi-layered blow-molded bottle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5983651A (en) * 1982-11-06 1984-05-15 住友ベークライト株式会社 Package
JPS6097849A (en) * 1983-11-02 1985-05-31 三菱化学株式会社 Composite film or sheet which can be thermocompression-bonded
JPS63290742A (en) * 1987-05-22 1988-11-28 Dainippon Printing Co Ltd Laminated material having excellent properties in holding fragrance
US4846359A (en) * 1987-12-18 1989-07-11 The Procter & Gamble Company Multi-layered plastic bottle having integrally formed handle and method of making
WO1989008556A1 (en) * 1988-03-17 1989-09-21 Eastman Kodak Company Multilayered sheets having excellent adhesion
EP0365266A2 (en) * 1988-10-17 1990-04-25 Nippon Petrochemicals Company, Limited Multi-layered blow-molded bottle

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 8425, Derwent World Patents Index; Class A92, AN 84-156105 *
DATABASE WPI Section Ch Week 8528, Derwent World Patents Index; Class A94, AN 85-168469 *
DATABASE WPI Section Ch Week 8902, Derwent World Patents Index; Class A94, AN 89-013317 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111453121A (en) * 2020-04-10 2020-07-28 苏州通成化妆品包装有限公司 Double-layer composite PETG bottle and production process

Also Published As

Publication number Publication date
DE4415549A1 (en) 1995-11-09

Similar Documents

Publication Publication Date Title
EP0961731B1 (en) Hollow plastic structure with a high level of chemical stability
EP1661686B1 (en) Method of manufacturing a thin layer of silicone, thin silicone layer and application
DE69633200T2 (en) DELAMINABLE PACKAGING LAMINATE AND METHOD FOR THE PRODUCTION THEREOF
EP3720707A1 (en) Plastic film composite, plastic packaging and method for producing a plastic film composite
CH649263A5 (en) COMPRESSIBLE DISPENSER.
DE2534873A1 (en) MULTI-LAYER MATERIAL AND CONTAINERS MADE FROM IT
EP3715114A1 (en) Packaging bag made of plastic tissue composite
DE102010042342A1 (en) Tubular laminate film with at least one oriented barrier layer and at least partially formed from this tube packaging
CH626542A5 (en)
DE69630892T2 (en) METHOD FOR PRODUCING A MULTILAYER PACKAGING MATERIAL
WO1995029805A1 (en) Container
DE10347908A1 (en) Method and device for producing at least one container filled with a medium
DE2922556A1 (en) CONTAINER IN THE FORM OF A EXPRESSING TUBE OR DGL. AND PROCESS FOR ITS MANUFACTURING
DE3544062A1 (en) LAMINATE AND DISPENSER MADE THEREOF
DE602004003369T2 (en) MULTILAYER, TRANSPARENT BOTTLE
EP0308668B1 (en) Multilayered coextrusion-blow-moulded plastics container
WO2007006163A1 (en) Oxygen impermeable pourer with spout and flange for cardboard composite packagings
DE1586824A1 (en) Multi-layered thermoplastic plastic bag
DE102010046378B4 (en) Multilayer plastic articles with barrier properties and method of making the same
EP3758929A1 (en) Composite structure for an airbag cover, and sewn product of the composite structure
DE102011000189A1 (en) Packaging made of cardboard
DE2215817A1 (en) Multilayered, blow molded bottles
DE10221141B4 (en) plastic film
DE2304105A1 (en) Thermoplastic combination matl. for multi-component articles - with adjacent strips of differing materials for shaping into the various components
DE1504619A1 (en) Method and device for the extrusion of plastic films

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): SI

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase