DE4415549A1 - container - Google Patents

container

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Publication number
DE4415549A1
DE4415549A1 DE4415549A DE4415549A DE4415549A1 DE 4415549 A1 DE4415549 A1 DE 4415549A1 DE 4415549 A DE4415549 A DE 4415549A DE 4415549 A DE4415549 A DE 4415549A DE 4415549 A1 DE4415549 A1 DE 4415549A1
Authority
DE
Germany
Prior art keywords
petg
container
layer
adhesion promoter
inner layer
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Withdrawn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
DE4415549A
Other languages
German (de)
Inventor
Johannes Schneider
Dietholf Mehl
Albert Stoeffler
Detlef Dr Hollenberg
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.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
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 AG and Co KGaA filed Critical Henkel AG and Co KGaA
Priority to DE4415549A priority Critical patent/DE4415549A1/en
Priority to PCT/EP1995/001541 priority patent/WO1995029805A1/en
Publication of DE4415549A1 publication Critical patent/DE4415549A1/en
Withdrawn legal-status Critical Current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
    • 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

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

Die Erfindung betrifft einen Behälter aus Kunststoff mit zwei aus verschiedenen thermoplastischen Kunststoffen ge­ bildeten Innen- und Außenschichten, welcher durch ein Ex­ trusionsblasverfahren aus einem zweischichtigen Schlauch gebildet ist.The invention relates to a container made of plastic two ge from different thermoplastics formed inner and outer layers, which by an Ex blow molding process from a two-layer hose is formed.

Derartige Behälter aus Kunststoff als Verpackungsmaterial für flüssige Reinigungsmittel, Körperpflegemittel oder dgl. sind bekannt, z. B. aus DE-PS 25 28 954 oder DE 37 44 639 A1. Diese aus einem zweischichtigen thermoplastischen Kunststoff extrudierten Behälter, deren Außenfläche beson­ ders glänzend ist, während die Innenschicht z. B. eingefärbt werden kann, weisen vor allem gute Präsentationseigenschaf­ ten auf. Von Nachteil bei diesem Behälter ist, daß bei be­ stimmten Produkten Produktwirkstoffe, z. B. Pigmente, in das Behältermaterial aus Polyethylen einwandern, welche dann im Produkt fehlen und die Produkteigenschaften verschlechtern.Such containers made of plastic as packaging material for liquid detergents, personal care products or the like are known, e.g. B. from DE-PS 25 28 954 or DE 37 44 639 A1. This consists of a two-layer thermoplastic Plastic extruded container, the outer surface of which ders glossy, while the inner layer z. B. colored have good presentation properties on. The disadvantage of this container is that at be agreed products product ingredients, e.g. B. pigments, in the Immigrate container material made of polyethylene, which then in Product is missing and the product properties deteriorate.

Grundsätzlich sind auch Behälter, die ausschließlich aus PETG bestehen, bekannt, bei welchen das Problem des Einwan­ derns von Produktwirkstoffen in den Behälter nicht besteht. Allerdings weist PETG sehr schlechte Wasserdampfsperreigen­ schaften auf, so daß sich die Behälter stark einziehen, was nicht tolerierbar ist. Basically, containers are also made entirely of PETG exist, known to have the problem of objection there is no active ingredient in the container. However, PETG has very poor water vapor barrier properties create on, so that the container retract strongly what is intolerable.  

Die Aufgabe der Erfindung besteht deshalb darin, auf einfa­ che Weise einen Behälter aus Kunststoff zu schaffen, wel­ cher einerseits eine ausreichende Wasserdampfsperre auf­ weist und andererseits das Auswandern von Produktwirkstof­ fen in die Behälterwandung verhindert.The object of the invention is therefore to simplify che way to create a container made of plastic, wel cher on the one hand an adequate water vapor barrier shows and on the other hand the emigration of active ingredient prevented into the container wall.

Diese Aufgabe wird mit einem Behälter der eingangs bezeich­ neten Art erfindungsgemäß dadurch gelöst, daß der Schlauch von einer PETG (mit Glycol modifiziertes Polyethy­ lenterephthalat) -innenschicht und einer PE oder PP (Poly­ ethylen oder Polypropylen) -außenschicht mit einem dazwi­ schen befindlichen Haftvermittler gebildet ist.This task is described with a container at the beginning neten Art solved according to the invention in that the hose from a PETG (glycol modified polyethylene lenterephthalate) inner layer and a PE or PP (poly ethylene or polypropylene) outer layer with an addition the existing adhesion promoter is formed.

Es hat sich überraschend herausgestellt, daß sich unter Verwendung eines geeigneten Haftvermittlers die beiden be­ schriebenen thermoplastischen Kunststoffe gut und dauerhaft miteinander verbinden lassen und zu einem PETG-PE- bzw. PP- Schlauch ausgestaltet werden können. Hierzu werden die bei­ den Kunststoffe aus zwei Extrudern durch Schlitzdüsen, die in einer Ringdüse angeordnet sind, hindurchgequetscht, wo­ bei gleichzeitig durch eine dritte Schlitzdüse der Haftver­ mittler 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 eines geeigneten Haftvermittlers werden die verschiedenen Kunststoffe dauer­ haft und fest miteinander verbunden und die Barriereeigen­ schaften der beiden Kunststoffschichten insgesamt erhöht.It has surprisingly turned out that under Use a suitable adhesion promoter the two be wrote thermoplastic materials well and permanently let them connect and make a PETG-PE or PP Hose can be designed. For this, the at the plastics from two extruders through slot nozzles that are arranged in an annular nozzle, squeezed through where at the same time through a third slot nozzle of the adhesive is squeezed through the middle. The by blowing in Air-formed two-layer bottle points through the outside lying PE or PP layer a good water vapor barrier on, the PETG inner layer prevents the  Active ingredient. By choosing a suitable one Adhesion promoter will last the various plastics cohesive and firmly connected and the barrier proper shafts of the two plastic layers increased overall.

Als besonders geeignet hat sich ein Haftvermittler des Typs Admer SE 800 der Firma Mitsui Petrochemical Ind., Ltd. To­ kyo, Japan herausgestellt, mit dem es auf überraschende Weise besonders gut gelingt, diese beiden bisher kaum ver­ bindbaren Thermoplaste dauerhaft und fest miteinander zu verbinden.An adhesion promoter of the type has proven particularly suitable Admer SE 800 from Mitsui Petrochemical Ind., Ltd. To kyo, Japan exposed, which is surprising Wise particularly well, these two have so far hardly ver bindable thermoplastics permanently and firmly together connect.

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 inner layer of the container preferably consists of Kodar® PETG Copolyester 6763 from Eastman Chemical Products, Inc., Kingsport, Tennessee, USA, described for example in the company publication, publication no. MB-82A, October 1983.

Die Erfindung ist nachstehend anhand der Zeichnung bei­ spielsweise näher erläutert. Diese zeigt inThe invention is below with reference to the drawing explained in more detail, for example. This shows in

Fig. 1 in schematischer Darstellung teilweise im Schnitt einen erfindungsgemäßen Behälter und Fig. 1 shows a schematic representation, partly in section, of a container according to the invention

Fig. 2 ein vergrößertes Detail der Fig. 1. Fig. 2 shows an enlarged detail of FIG. 1.

Ein Behälter 1 in Flaschenform für ein flüssiges Produkt, z. B. ein Haarpflegemittel, weist eine Wandung 2, deren Außen­ fläche mit 3 bezeichnet ist und eine Öffnung 4 auf. Die Wandung 2 besteht aus einer inneren Schicht 5 und einer äu­ ßeren 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 Schichten 5 und 6 befindet sich ein Haftvermittler 7, beispielsweise Admer SE 800 der Firma Mitsui Petrochemical Ind., Ltd. Tokyo, Japan.A container 1 in bottle form for a liquid product, e.g. B. a hair care product has a wall 2 , the outer surface 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.

Der Behälter 1 wird durch ein Extrusionsblasverfahren aus einem durch Coextrusion der beiden Polymere (PETG und PE bzw. PP) hergestellten Schlauch unter Einschluß des Haft­ vermittlers 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 bonding agent 7 .

Natürlich ist die Erfindung nicht auf das in der Zeichnung beschriebene Ausführungsbeispiel beschränkt. Weitere Ausge­ staltungen sind möglich, ohne den Grundgedanken zu verlas­ sen. So kann selbstverständlich auch ein anderer, geeigne­ ter Haftvermittler eingesetzt werden und dgl. mehr.Of course, the invention is not based on that in the drawing described embodiment limited. Further Ausge Events are possible without leaving the basic idea behind sen. So, of course, another suitable one ter adhesion promoter are used and the like. More.

Claims (3)

1. Behälter aus Kunststoff mit zwei aus verschiedenen thermo­ plastischen Kunststoffen gebildeten Innen- und Außenschich­ ten, welcher durch ein Extrusionsblasverfahren aus einem zweischichtigen Schlauch gebildet ist, dadurch gekennzeichnet, daß der Schlauch von einer PETG (mit Glycol modifiziertes Polyethylenterephthalat) -innenschicht (PETG) und einer PE oder PP (Polyethylen oder Polypropylen) -außenschicht mit einem dazwischen befindlichen Haftvermittler gebildet ist.1. Container made of plastic with two inner and outer layers formed from different thermoplastic materials, which is formed by an extrusion blow molding process from a two-layer hose, characterized in that the hose is made of a PETG (glycol-modified polyethylene terephthalate) inner layer (PETG) and a PE or PP (polyethylene or polypropylene) outer layer with an adhesion promoter located between them. 2. Behälter nach Anspruch 1, dadurch gekennzeichnet, daß der Haftvermittler vom Typ Admer SE 800 gebildet ist.2. Container according to claim 1, characterized, that the Admer SE 800 adhesion promoter is formed. 3. Behälter nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Innenschicht aus PETG 6763 mit einem mittleren nu­ merischen Molekulargewicht (MU) von etwa 26.000 besteht.3. Container according to claim 1 or 2, characterized, that the inner layer made of PETG 6763 with a medium nu meric molecular weight (MU) of about 26,000.
DE4415549A 1994-05-03 1994-05-03 container Withdrawn DE4415549A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE4415549A DE4415549A1 (en) 1994-05-03 1994-05-03 container
PCT/EP1995/001541 WO1995029805A1 (en) 1994-05-03 1995-04-24 Container

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DE4415549A1 true DE4415549A1 (en) 1995-11-09

Family

ID=6517157

Family Applications (1)

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

Country Status (2)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998043881A1 (en) * 1997-03-31 1998-10-08 The Procter & Gamble Company Multi-layered plastic container providing good product drainage
WO1999038685A1 (en) * 1998-01-29 1999-08-05 Soplaril S.A. Film for wrapping objects
US6068900A (en) * 1996-07-05 2000-05-30 Wella Ag Plastic container having a high resistance to chemical attack and method of making same
US6632493B1 (en) 1997-03-31 2003-10-14 The Procter & Gamble Company Multi-layered plastic container providing good product drainage

Families Citing this family (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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4846359A (en) * 1987-12-18 1989-07-11 The Procter & Gamble Company Multi-layered plastic bottle having integrally formed handle and method of making

Family Cites Families (5)

* 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
JP2554882B2 (en) * 1987-05-22 1996-11-20 大日本印刷株式会社 Laminated material with excellent aroma retention performance
US4939009A (en) * 1988-03-17 1990-07-03 Eastman Kodak Company Multilayered sheets having excellent adhesion
JPH0751343B2 (en) * 1988-10-17 1995-06-05 日本石油化学株式会社 Hollow container

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4846359A (en) * 1987-12-18 1989-07-11 The Procter & Gamble Company Multi-layered plastic bottle having integrally formed handle and method of making

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6068900A (en) * 1996-07-05 2000-05-30 Wella Ag Plastic container having a high resistance to chemical attack and method of making same
WO1998043881A1 (en) * 1997-03-31 1998-10-08 The Procter & Gamble Company Multi-layered plastic container providing good product drainage
US6632493B1 (en) 1997-03-31 2003-10-14 The Procter & Gamble Company Multi-layered plastic container providing good product drainage
WO1999038685A1 (en) * 1998-01-29 1999-08-05 Soplaril S.A. Film for wrapping objects

Also Published As

Publication number Publication date
WO1995029805A1 (en) 1995-11-09

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