EP1812222A1 - Method for producing a container provided with a container opening, and a container produced according to this method - Google Patents
Method for producing a container provided with a container opening, and a container produced according to this methodInfo
- Publication number
- EP1812222A1 EP1812222A1 EP05801319A EP05801319A EP1812222A1 EP 1812222 A1 EP1812222 A1 EP 1812222A1 EP 05801319 A EP05801319 A EP 05801319A EP 05801319 A EP05801319 A EP 05801319A EP 1812222 A1 EP1812222 A1 EP 1812222A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- balloon
- mandrel
- preform
- container opening
- 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- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000007664 blowing Methods 0.000 claims abstract description 9
- 229920000642 polymer Polymers 0.000 claims abstract description 7
- 239000012815 thermoplastic material Substances 0.000 claims abstract description 6
- 229920001971 elastomer Polymers 0.000 claims description 10
- -1 polytetrafluoroethylene Polymers 0.000 claims description 10
- 239000005060 rubber Substances 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 229920002943 EPDM rubber Polymers 0.000 claims description 4
- 239000004705 High-molecular-weight polyethylene Substances 0.000 claims description 4
- 229920001903 high density polyethylene Polymers 0.000 claims description 4
- 239000004700 high-density polyethylene Substances 0.000 claims description 4
- 229920001684 low density polyethylene Polymers 0.000 claims description 4
- 239000004702 low-density polyethylene Substances 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 claims description 2
- 229920000459 Nitrile rubber Polymers 0.000 claims description 2
- 229920010741 Ultra High Molecular Weight Polyethylene (UHMWPE) Polymers 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 229920002379 silicone rubber Polymers 0.000 claims description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 2
- 238000003825 pressing Methods 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/44—Component parts, details or accessories; Auxiliary operations for applying pressure through the walls of an inflated bag
-
- 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
- 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
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/58—Blowing means
-
- 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
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3086—Interaction between two or more components, e.g. type of or lack of bonding
- B29C2949/3088—Bonding
-
- 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
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3086—Interaction between two or more components, e.g. type of or lack of bonding
- B29C2949/3094—Interaction between two or more components, e.g. type of or lack of bonding preform having at least partially loose components, e.g. at least partially loose layers
-
- 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
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- 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
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/76—Neck calibration
-
- 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
- B29K2009/00—Use of rubber derived from conjugated dienes, as moulding material
- B29K2009/06—SB polymers, i.e. butadiene-styrene polymers
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
- B29K2023/0608—PE, i.e. polyethylene characterised by its density
- B29K2023/0625—LLDPE, i.e. linear low density polyethylene
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
- B29K2023/0608—PE, i.e. polyethylene characterised by its density
- B29K2023/0633—LDPE, i.e. low density polyethylene
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
- B29K2023/0608—PE, i.e. polyethylene characterised by its density
- B29K2023/065—HDPE, i.e. high density polyethylene
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
- B29K2023/0658—PE, i.e. polyethylene characterised by its molecular weight
- B29K2023/0683—UHMWPE, i.e. ultra high molecular weight polyethylene
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
-
- 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
- B29L2009/00—Layered products
- B29L2009/001—Layered products the layers being loose
Definitions
- the present invention relates to a method for producing a container provided with a container opening with a substantially dimensionally stable outer layer and at least one inner layer of each different, thermoplastic materials.
- the method is particularly suitable for the production of a container, as described in DE-A 100 17 443.
- a preform which consists of at least two coaxial melt-shaped polymer tubes, which have sufficient lengths for the production of the container.
- the manufacture of the container then takes place in a blowing process between the closed individual parts of a blow mold, with a blow mandrel being inserted through the mold into the molten preform.
- Polypropylene and the inner tube are adversely affected without special measures due to the pressure introduced by a mandrel in the interior pressure.
- this relates to the inner tube in the container opening area.
- the outer tube may have wall thicknesses of between 0.3 to 2 mm
- the inner tube will have a wall thickness of 0.08 to 0.5 mm. If this material now mentioned Pressure is caused, inter alia, due to shifts of the layer regions of the inner and outer layer, which lie on each other before blowing, in the neck area between the inner tube and the mandrel to damage the inner wall as a thinning of the tubing down to, for example 0, 01 mm or to holes.
- a rigid mandrel with a balloon attached thereto is guided through the container opening into the interior of the preform, the balloon is inflated in the region of the container opening, such that the At least two layers are pressed against the blow mold and solidify there, and finally pressure is passed through the mandrel in the interior of the preform.
- the described problem is thus solved in this case that the plastic layers are first pressed selectively in the neck region of the container to be manufactured to the blow mold by means of the inflated balloon. Only after this process step has been completed, the remaining area of the container is inflated and the container is formed so that the plastic layers in the rest Cling areas to the blow mold and freeze there.
- the proposed procedure ensures that the plastic layers are initially fixed in the container opening to some extent before the remaining areas of the container are formed, whereby no influence can be exerted on the plastic layers in the container neck area, since they are already solidified in the desired shape ,
- the balloon may suitably be connected to the mandrel, for example by gluing.
- a rigid mandrel with a balloon placed in the mandrel is guided into the area of the container opening, the balloon is inflated in the region of the container opening while leaving the mandrel, such that the at least two layers are pressed to the blow mold and solidify there and finally the mandrel is optionally carried deeper into the interior of the preform and then further air pressure is passed through the mandrel in the interior of the preform.
- the balloon is therefore initially inside the mandrel before it is inflated by introducing air and performs the same function as the balloon in the first variant.
- the plastic layers are fixed in advance in the container opening so that they solidify in this state and no shifts or the like, which can lead to a thinning of the inner layer, are possible.
- the unit mandrel and balloon in the container opening In order to facilitate the insertion of the unit mandrel and balloon in the container opening, it may be provided according to an advantageous development that before the introduction of the mandrel in the balloon, a vacuum is generated. As a result, the introduction behavior is improved, since the possibility that the balloon material hooked with edges on the container opening, is reduced.
- the temperature of the air with which the balloon is inflated is preferably below the ambient temperature. As a result, the cooling of the plastic material during inflation of the two hoses is faster. As a result, the throughput of the blow mold can be increased.
- the balloon is inflated at a higher pressure than the rest of the preform.
- a polytetrafluoroethylene coated balloon may be used. This reduces the static friction and ensures easy detachment of the balloon after completion of the container.
- a silicone-coated balloon may be used, or a metallized surface balloon may be used. All these measures are used to easily detach the balloon after completion of the container from the container opening.
- a material for the balloon and a composite material of metal components can be used in a polymer matrix.
- an elastic mandrel with a larger inlet than the outlet through the container opening into the interior of the preform is guided and pressurized, such that the mandrel in the region of the container opening the press at least two layers of the blow mold before the pressure spreads in the rest of the preform.
- an elastic mandrel application which is designed in a special way so that it is inflated, so to speak, in the region of the container opening to fix the two layers of the blow mold , before due to the flow conditions pressure in the rest of the preform can be initiated.
- the Flow conditions result, among other things, from the fact that the inlet of the mandrel is greater than its outlet.
- the wall of the balloon consists of layers of rubber and polyolefins.
- the container with a multilayer wall construction consists of layers of rubbers and polyurethane in the form of thermoplastic elastomers.
- the rubbers are selected from the following group:
- HNBR hydrogenated nitrile butadiene rubber
- EPDM ethylene propylene (diene) rubbers
- silicone rubbers silicone rubbers
- MPVQ methyl phenyl vinyl rubber
- MPQ methyl phenyl silican rubber
- polyolefins are selected from the following group:
- LDPE low density polyethylene
- LLDPE linear low density polyethylene
- HDPE high density polyethylene
- HMWPE high molecular weight polyethylene
- UHMWPE ultra high molecular weight polyethylene
- Figure 1 is a schematic sectional view of the arrangement of two plastic tubes in a blow mold with inserted mandrel in
- Figure 2 is a similar view with inflated balloon
- Figure 3 is a view similar to Figure 2, after the whole preform the
- FIG. 1 shows the starting situation before the coextrusion blown process.
- a blow mold 4 two coaxial tubes 2, 3 are guided from above.
- the hoses 2, 3 still have a certain distance from the wall of the blow mold 4.
- a blowing mandrel 5 is guided, which also passes through the cutting plate 8.
- the cutting plate 8 serves to form the container opening 7.
- balloon 6 At the rigid mandrel 5 a not yet inflated in Figure 1 balloon 6 is attached.
- This balloon 6 can be inflated by means of compressed air, which is passed through the compressed air line 9.
- FIG. 2 This snapshot shows Figure 2. Clearly visible, the balloon 6 is now inflated, so that the two tubes 2 and 3 are pressed against the wall of the blow mold 4 and solidify there. In this way, the container opening of the container is fully formed before compressed air is passed through the mandrel 5 in the interior of the preform. In this way, a thinning especially of the inner tube 2 is prevented.
- This snapshot shows Figure 3. The balloon 6 is still inflated and air has been passed through the mandrel 5 in the rest of the preform, which is indicated that the hoses 2 and 3 in the areas behind the container opening to the wall of the blow mold. 4 have been pressed.
- the air is discharged from the balloon 6 or it is preferably generated in the balloon 6, a vacuum.
- the uniformly moving machine part from mandrel 5, 6 balloon and insert 8 can then be withdrawn from the container opening and the blow mold 4 are opened to remove the molded container.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
The invention relates to a method for producing a container, which is provided with a container opening and which has an, in essence, dimensionally stable outer layer and at least one internal layer made of thermoplastic materials of a different kind. Firstly, a parison consisting of at least two coaxial molten polymer tubes (2, 3), which have sufficient lengths for producing the container, is created between the closed separate parts of a blow mold (4) during a blowing process. A rigid blowing mandrel (5) with a balloon (6) placed thereon is guided through the mold and into the parison, whereupon the balloon (6) is inflated in the area of the container opening whereby pressing the at least two layers against the blow mold (4) where they then solidify. Finally, the pressure is directed through the blowing mandrel (5) and inside the parison.
Description
Verfahren zur Herstellung eines mit einer Behälteröffnung versehenen Behälters und nach diesem Verfahren hergestellter BehälterMethod for producing a container provided with a container opening and container produced by this method
Beschreibungdescription
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung eines mit einer Behälteröffnung versehenen Behälters mit einer im wesentlichen formsteifen Außenschicht und wenigstens einer innen liegenden Schicht aus jeweils verschiedenartigen, thermoplastischen Kunststoffen.The present invention relates to a method for producing a container provided with a container opening with a substantially dimensionally stable outer layer and at least one inner layer of each different, thermoplastic materials.
Das Verfahren eignet sich insbesondere zur Herstellung eines Behälters, wie er in der DE- A 100 17 443 beschrieben ist.The method is particularly suitable for the production of a container, as described in DE-A 100 17 443.
Bei der Durchführung des Verfahrens wird zunächst ein Vorformling erzeugt, der aus wenigstens zwei koaxialen schmelzförmigen Polymerschläuchen, die für die Herstellung des Behälters ausreichende Längen aufweisen, besteht. Die Herstellung des Behälters findet dann in einem Blasverfahren zwischen den geschlossenen Einzelteilen einer Blasform statt, wobei ein Blasdorn durch die Form in den schmelzförmigen Vorformling eintaucht.In carrying out the method, first a preform is produced, which consists of at least two coaxial melt-shaped polymer tubes, which have sufficient lengths for the production of the container. The manufacture of the container then takes place in a blowing process between the closed individual parts of a blow mold, with a blow mandrel being inserted through the mold into the molten preform.
Genau in diesem Moment können Probleme an der Blasform im Bereich der zu formenden Behälteröffnung auftreten. Wenn nämlich die Schichten der thermoplastischen Kunststoffe nicht parallel aufeinander liegen, sondern meist ineinander verschoben sind, führt dies zu einer unerwünschten Schwächung des Halsbereiches des Behälters, die Undichtigkeiten hervorrufen kann. Die Schläuche, wobei der Außenschlauch beispielsweise ausAt this very moment, problems can occur at the blow mold in the area of the container opening to be formed. Namely, if the layers of thermoplastic materials are not parallel to each other, but are usually shifted into each other, this leads to an undesirable weakening of the neck region of the container, which can cause leaks. The hoses, wherein the outer tube, for example, out
Polypropylen und der Innenschlauch beispielsweise aus Polyethylen bestehen, werden ohne besondere Maßnahme aufgrund des durch einen Blasdorn in das Innere eingebrachten Druckes negativ beeinträchtigt. Insbesondere betrifft dies den Innenschlauch im Behälteröffnungsbereich. Während der Außenschlauch Wandstärken beispielsweise zwischen 0,3 bis 2 mm aufweisen kann, wird der innere Schlauch beispielsweise eine Wandstärke von 0,08 bis 0,5 mm aufweisen. Wenn dieses Material nun dem erwähnten
Druck ausgesetzt wird, kommt es unter anderem aufgrund von Verschiebungen der Schichtbereiche der inneren und äußeren Schicht, die vor dem Blasen aufeinander liegen, im Halsbereich zwischen dem Innenschlauch und dem Blasdorn zu einer Schädigung der Innenwand wie einer Ausdünnung des Schlauchmaterials bis hinunter zu beispielsweise 0,01 mm oder zu Löchern. Darüber hinaus entstehen Inhomogenitäten in der Wandstärke des Innenschlauches im Halsbereich des Behälters. Eine derartige Ausdünnung hat aber ein Problem hinsichtlich der Dichtigkeit zur Folge. Ist der Behälter undicht, kann an diesen Stellen Flüssigkeit austreten. In den Bereichen mit ausgedünnter Wandstärke ist auch die Diffusionsbarriere erniedrigt, so daß leicht flüchtige Stoffe an dieser Stelle verstärkt ausdiffundieren können.Polypropylene and the inner tube, for example made of polyethylene, are adversely affected without special measures due to the pressure introduced by a mandrel in the interior pressure. In particular, this relates to the inner tube in the container opening area. For example, while the outer tube may have wall thicknesses of between 0.3 to 2 mm, the inner tube will have a wall thickness of 0.08 to 0.5 mm. If this material now mentioned Pressure is caused, inter alia, due to shifts of the layer regions of the inner and outer layer, which lie on each other before blowing, in the neck area between the inner tube and the mandrel to damage the inner wall as a thinning of the tubing down to, for example 0, 01 mm or to holes. In addition, inhomogeneities arise in the wall thickness of the inner tube in the neck region of the container. However, such a thinning has a problem with respect to the tightness result. If the container leaks, liquid can escape at these points. In the areas with thinned wall thickness and the diffusion barrier is lowered, so that volatile substances at this point can out-diffuse.
Vor diesem Hintergrund ist es die Aufgabe der vorliegenden Erfindung, das eingangs erwähnte Verfahren so weiterzubilden, dass eine Ausdünnung der Wandstärken der Schläuche weitestgehend unterbunden wird. Es soll also ein Verfahren angegeben werden, welches das Problem der Verdünnung, vor allem der Innenschicht im Halsbereich des Behälters löst. Darüber hinaus soll ein Behälter angegeben werden, welcher mit Hilfe des Verfahrens hergestellt wird. Verfahrensmäßig werden drei Alternativvorschläge angegeben.Against this background, it is the object of the present invention to further develop the initially mentioned method so that thinning of the wall thicknesses of the hoses is largely prevented. It is therefore intended to specify a method which solves the problem of dilution, especially of the inner layer in the neck region of the container. In addition, a container is to be specified, which is produced by means of the method. The procedure gives three alternative proposals.
Gemäß der ersten Möglichkeit wird vorgeschlagen, dass - nachdem die Blasform wie beschrieben geschlossen worden ist - ein starrer Blasdorn mit einem daran angebrachten Ballon durch die Behälteröffnung in das Innere des Vorformlings geführt wird, der Ballon im Bereich der Behälteröffnung aufgeblasen wird, derart, dass die wenigstens zwei Schichten an die Blasform gedrückt werden und dort erstarren, und schließlich Druck durch den Blasdorn in das Innere des Vorformlings geleitet wird.According to the first possibility, it is proposed that - after the blow mold has been closed as described - a rigid mandrel with a balloon attached thereto is guided through the container opening into the interior of the preform, the balloon is inflated in the region of the container opening, such that the At least two layers are pressed against the blow mold and solidify there, and finally pressure is passed through the mandrel in the interior of the preform.
Das geschilderte Problem wird also in diesem Falle dadurch gelöst, dass die Kunststoffschichten zuerst gezielt im Halsbereich des herzustellenden Behälters an die Blasform gedrückt werden mittels des aufgeblasenen Ballons. Erst nachdem dieser Verfahrensschritt vollzogen worden ist, wird der übrige Bereich des Behälters aufgeblasen und der Behälter so ausgeformt, dass sich die Kunststoffschichten auch in den übrigen
Bereichen an die Blasform anschmiegen und dort erstarren. Durch die vorgeschlagene Vorgehensweise wird erreicht, dass die Kunststoffschichten zunächst im Bereich der Behälteröffnung gewissermaßen fixiert werden, bevor die übrigen Bereiche des Behälters ausgeformt werden, wodurch keinerlei Einfluss mehr auf die Kunststoffschichten im Behälterhalsbereich ausgeübt werden kann, da diese bereits in der gewünschten Form erstarrt sind.The described problem is thus solved in this case that the plastic layers are first pressed selectively in the neck region of the container to be manufactured to the blow mold by means of the inflated balloon. Only after this process step has been completed, the remaining area of the container is inflated and the container is formed so that the plastic layers in the rest Cling areas to the blow mold and freeze there. The proposed procedure ensures that the plastic layers are initially fixed in the container opening to some extent before the remaining areas of the container are formed, whereby no influence can be exerted on the plastic layers in the container neck area, since they are already solidified in the desired shape ,
Der Ballon kann geeigneterweise mit dem Blasdorn verbunden sein, beispielsweise durch Verklebung.The balloon may suitably be connected to the mandrel, for example by gluing.
Gemäß einem zweiten Vorschlag wird - wiederum, nachdem die Blasform geschlossen worden ist - ein starrer Blasdorn mit einem im Blasdorn untergebrachten Ballon in den Bereich der Behälteröffnung geführt, der Ballon im Bereich der Behälteröffnung unter Verlassen des Blasdorns aufgeblasen, derart, dass die wenigstens zwei Schichten an die Blasform gedrückt werden und dort erstarren und schließlich der Blasdorn gegebenenfalls tiefer in das Innere des Vorformlings geführt wird und dann weiter Luftdruck durch den Blasdorn in das Innere des Vorformlings geleitet wird.According to a second proposal, again after the blow mold has been closed, a rigid mandrel with a balloon placed in the mandrel is guided into the area of the container opening, the balloon is inflated in the region of the container opening while leaving the mandrel, such that the at least two layers are pressed to the blow mold and solidify there and finally the mandrel is optionally carried deeper into the interior of the preform and then further air pressure is passed through the mandrel in the interior of the preform.
Im Unterschied zu der ersten Variante befindet sich der Ballon also zunächst im Inneren des Blasdorns, bevor er durch Einleiten von Luft aufgeblasen wird und dieselbe Funktion ausübt wie der Ballon in der ersten Variante. Auch hier werden also die Kunststoffschichten im Bereich der Behälteröffnung vorab fixiert, so dass sie in diesem Zustand erstarren und keine Verschiebungen oder dergleichen, die zu einer Ausdünnung der Innenschicht führen können, möglich sind.In contrast to the first variant, the balloon is therefore initially inside the mandrel before it is inflated by introducing air and performs the same function as the balloon in the first variant. Again, therefore, the plastic layers are fixed in advance in the container opening so that they solidify in this state and no shifts or the like, which can lead to a thinning of the inner layer, are possible.
Um das Einführen der Einheit Blasdorn und Ballon in die Behälteröffnung zu erleichtern, kann es gemäß einer vorteilhaften Weiterbildung vorgesehen sein, dass vor der Einführung des Blasdorns in dem Ballon ein Vakuum erzeugt wird. Hierdurch wird das Einführungs verhalten verbessert, da die Möglichkeit, dass sich das Ballonmaterial mit Kanten an der Behälteröffnung verhakt, reduziert wird.
Die Temperatur der Luft, mit welcher der Ballon aufgeblasen wird, liegt vorzugsweise unterhalb der Umgebungstemperatur. Hierdurch geht die Abkühlung des Kunststoffmaterials beim Aufblasen der beiden Schläuche schneller vonstatten. Hierdurch kann der Durchsatz der Blasform gesteigert werden.In order to facilitate the insertion of the unit mandrel and balloon in the container opening, it may be provided according to an advantageous development that before the introduction of the mandrel in the balloon, a vacuum is generated. As a result, the introduction behavior is improved, since the possibility that the balloon material hooked with edges on the container opening, is reduced. The temperature of the air with which the balloon is inflated is preferably below the ambient temperature. As a result, the cooling of the plastic material during inflation of the two hoses is faster. As a result, the throughput of the blow mold can be increased.
Vorzugsweise wird der Ballon mit einem höheren Druck aufgeblasen als der übrige Vorformling. Durch diese Vorgehens weise wird zuverlässig verhindert, dass der Ballon aufgrund eines höheren Druckes im Vorformling zusammengedrückt wird und es unter Umständen wieder zu einer Verschiebung bzw. Ausdünnung des Innenschlauches kommt.Preferably, the balloon is inflated at a higher pressure than the rest of the preform. By this approach, it is reliably prevented that the balloon is compressed due to a higher pressure in the preform and it may come again to a shift or thinning of the inner tube.
Bevorzugt kann ein mit Polytetrafluorethylen beschichteter Ballon verwendet werden. Dies setzt die Haftreibung herab und gewährleistet ein leichtes Ablösen des Ballons nach Fertigstellung des Behälters. Alternativ kann auch ein mit Silikonen beschichteter Ballon verwendet werden oder es wird ein Ballon mit metallisierter Oberfläche verwendet. Alle diese Maßnahmen dienen zum leichten Ablösen des Ballons nach Fertigstellung des Behälters von der Behälteröffnung.Preferably, a polytetrafluoroethylene coated balloon may be used. This reduces the static friction and ensures easy detachment of the balloon after completion of the container. Alternatively, a silicone-coated balloon may be used, or a metallized surface balloon may be used. All these measures are used to easily detach the balloon after completion of the container from the container opening.
Als Material für den Ballon kann auch ein Werkstoffverbund aus Metallbauteilen in einer Polymermatrix verwendet werden.As a material for the balloon and a composite material of metal components can be used in a polymer matrix.
Gemäß einer dritten Variante des Verfahrens wird - wiederum nachdem die Blasform geschlossen worden ist - ein elastischer Blasdorn mit einem größeren Einlass als der Auslass durch die Behälteröffnung in das Innere des Vorformlings geführt und mit Druck beaufschlagt, derart, dass der Blasdorn im Bereich der Behälteröffnung die wenigstens zwei Schichten an die Blasform drückt, bevor sich der Druck im übrigen Vorformling ausbreitet. Es findet bei dieser Variante also kein starrer Blasdorn wie bei den ersten beiden Varianten, sondern ein elastischer Blasdorn Anwendung, der in spezieller Weise so ausgebildet ist, dass er zunächst im Bereich der Behälteröffnung gewissermaßen aufgeblasen wird, um die beiden Schichten an der Blasform zu fixieren, bevor aufgrund der Strömungsverhältnisse Druck im übrigen Vorformling eingeleitet werden kann. Die
Strömungsverhältnisse ergeben sich unter anderem daraus, dass der Einlass des Blasdorns größer ist als sein Auslass.According to a third variant of the method - again after the blow mold has been closed - an elastic mandrel with a larger inlet than the outlet through the container opening into the interior of the preform is guided and pressurized, such that the mandrel in the region of the container opening the press at least two layers of the blow mold before the pressure spreads in the rest of the preform. Thus, in this variant, there is no rigid mandrel as in the first two variants, but an elastic mandrel application, which is designed in a special way so that it is inflated, so to speak, in the region of the container opening to fix the two layers of the blow mold , before due to the flow conditions pressure in the rest of the preform can be initiated. The Flow conditions result, among other things, from the fact that the inlet of the mandrel is greater than its outlet.
Ein Vorteil dieser dritten Variante ist neben anderen darin zu sehen, dass eine Erzeugung eines Vakuums zur erleichterten Einführung in die Behälteröffnung nicht notwendig ist. Der elastische Blasdorn bildet gewissermaßen seinen eigenen Ballon aus, wenn Druck angelegt wird.One advantage of this third variant, among others, is that it is not necessary to create a vacuum to facilitate introduction into the container opening. The elastic mandrel effectively forms its own balloon when pressure is applied.
Im Hinblick auf den Behälter, der mittels der drei Verfahrensvarianten hergestellt wird, ist vorteilhafterweise vorgesehen, dass die Wand des Ballons aus Schichten aus Kautschuk und Polyolefinen besteht.With regard to the container produced by means of the three variants of the method, it is advantageously provided that the wall of the balloon consists of layers of rubber and polyolefins.
Alternativ besteht der Behälter mit mehrschichtigem Wandaufbau aus Schichten aus Kautschuken und Polyurethan in Form von thermoplastischen Elastomeren.Alternatively, the container with a multilayer wall construction consists of layers of rubbers and polyurethane in the form of thermoplastic elastomers.
In einer bevorzugten Ausführungsform sind die Kautschuke ausgewählt aus der folgenden Gruppe:In a preferred embodiment, the rubbers are selected from the following group:
hydrierter Nitril-Butadien-Kautschuk (HNBR), Ethylen-Propylen-(Dien)-Kautschuke (EPDM), Silikonkautschuke, Methyl-Phenyl-Vinyl-Kautschuk (MPVQ), Methyl-Phenyl- Silican-Kautschuk (MPQ).hydrogenated nitrile butadiene rubber (HNBR), ethylene propylene (diene) rubbers (EPDM), silicone rubbers, methyl phenyl vinyl rubber (MPVQ), methyl phenyl silican rubber (MPQ).
Alternativ ist bevorzugt vorgesehen, dass die Polyolefine ausgewählt sind aus der folgenden Gruppe:Alternatively, it is preferably provided that the polyolefins are selected from the following group:
low density Polyethylen (LDPE), linear low density Polyethylen (LLDPE), high density Polyethylen (HDPE), high molecular weight Polyethylen (HMWPE), ultra high molecular weight Polyethylen (UHMWPE), Polypropylen sowie deren Copolymere, Derivate und Blends.
Die Erfindung wird anhand eines Ausführungsbeispiels gemäß den Zeichnungsfiguren näher erläutert. Hierbei zeigt:low density polyethylene (LDPE), linear low density polyethylene (LLDPE), high density polyethylene (HDPE), high molecular weight polyethylene (HMWPE), ultra high molecular weight polyethylene (UHMWPE), polypropylene and their copolymers, derivatives and blends. The invention will be explained in more detail with reference to an embodiment according to the drawing figures. Hereby shows:
Figur 1 eine schematische Schnittansicht der Anordnung zweier Kunststoffschläuche in einer Blasform mit eingeführtem Blasdorn imFigure 1 is a schematic sectional view of the arrangement of two plastic tubes in a blow mold with inserted mandrel in
Halsbereich des zu formenden Behälters,Neck area of the container to be molded,
Figur 2 eine ähnliche Ansicht mit aufgeblasenem Ballon, undFigure 2 is a similar view with inflated balloon, and
Figur 3 eine ähnliche Ansicht wie Figur 2, nachdem der ganze Vorformling demFigure 3 is a view similar to Figure 2, after the whole preform the
Druck ausgesetzt worden ist.Pressure has been exposed.
In den Zeichnungsfiguren sind gleiche Teile mit denselben Bezugszeichen versehen.In the drawing figures, like parts are given the same reference numerals.
Figur 1 zeigt die Ausgangssituation vor Durchführung des Koextrusionsblasverfahrens.FIG. 1 shows the starting situation before the coextrusion blown process.
In eine Blasform 4 sind von oben zwei koaxiale Schläuche 2, 3 geführt. Die Schläuche 2, 3 haben noch einen gewissen Abstand zu der Wandung der Blasform 4. Von oben in die koaxialen Schläuche 2, 3 ist ein Blasdorn 5 geführt, der auch die Schneidplatte 8 durchsetzt. Die Schneidplatte 8 dient zur Ausbildung der Behälteröffnung 7.In a blow mold 4 two coaxial tubes 2, 3 are guided from above. The hoses 2, 3 still have a certain distance from the wall of the blow mold 4. From above into the coaxial hoses 2, 3, a blowing mandrel 5 is guided, which also passes through the cutting plate 8. The cutting plate 8 serves to form the container opening 7.
An dem starren Blasdorn 5 ist ein in Figur 1 noch nicht aufgeblasener Ballon 6 angebracht. Dieser Ballon 6 kann mittels Druckluft, welche durch die Druckluftleitung 9 geleitet wird, aufgeblasen werden.At the rigid mandrel 5 a not yet inflated in Figure 1 balloon 6 is attached. This balloon 6 can be inflated by means of compressed air, which is passed through the compressed air line 9.
Diese Momentaufnahme zeigt Figur 2. Deutlich erkennbar ist der Ballon 6 hier nun aufgeblasen, derart, dass die beiden Schläuche 2 und 3 an die Wandung der Blasform 4 gedrückt werden und dort erstarren. Auf diese Weise ist die Behälteröffnung des Behälters fertig geformt, bevor durch den Blasdorn 5 Druckluft in das Innere des Vorformlings geleitet wird. Auf diese Weise wird eine Ausdünnung vor allem des Innenschlauches 2 verhindert.
Diese Momentaufnahme zeigt Figur 3. Der Ballon 6 ist noch aufgeblasen und durch den Blasdorn 5 ist Luft in den übrigen Vorformling geleitet worden, was damit angedeutet ist, dass die Schläuche 2 und 3 auch in den Bereichen hinter der Behälteröffnung an die Wandung der Blasform 4 gedrückt worden sind.This snapshot shows Figure 2. Clearly visible, the balloon 6 is now inflated, so that the two tubes 2 and 3 are pressed against the wall of the blow mold 4 and solidify there. In this way, the container opening of the container is fully formed before compressed air is passed through the mandrel 5 in the interior of the preform. In this way, a thinning especially of the inner tube 2 is prevented. This snapshot shows Figure 3. The balloon 6 is still inflated and air has been passed through the mandrel 5 in the rest of the preform, which is indicated that the hoses 2 and 3 in the areas behind the container opening to the wall of the blow mold. 4 have been pressed.
Danach wird die Luft aus dem Ballon 6 abgelassen oder es wird vorzugsweise im Ballon 6 ein Vakuum erzeugt. Das einheitlich zu bewegende Maschinenteil aus Blasdorn 5, Ballon 6 und Schneidplatte 8 kann sodann aus der Behälteröffnung abgezogen werden und die Blasform 4 zur Entnahme des geformten Behälters geöffnet werden.
Thereafter, the air is discharged from the balloon 6 or it is preferably generated in the balloon 6, a vacuum. The uniformly moving machine part from mandrel 5, 6 balloon and insert 8 can then be withdrawn from the container opening and the blow mold 4 are opened to remove the molded container.
Claims
1. Verfahren zur Herstellung eines mit einer Behälteröffnung (7) versehenen Behälters mit einer im wesentlichen formsteifen Außenschicht und wenigstens einer innen liegenden Schicht aus jeweils verschiedenartigen, thermoplastischen Kunststoffen, bei dem zunächst ein Vorformling aus wenigstens zwei koaxialen, schmelzförmigen Polymerschläuchen (2,3), die für die Herstellung des Behälters ausreichende Längen aufweisen, in einem Blasverfahren zwischen den geschlossenen Einzelteilen einer Blasform (4) erzeugt wird, bei dem ein starrer Blasdorn (5) mit einem daran angebrachten Ballon (6) durch die Form in das Innere des Vorformlings geführt wird, der Ballon (6) im Bereich der Behälteröffnung (7) aufgeblasen wird, derart, dass die wenigsten zwei Schichten an die Blasform (4) gedrückt werden und dort erstarren, und schließlich Druck durch den Blasdorn (5) in das Innere des Vorformlings geleitet wird.1. A method for producing a container having a container opening (7) provided with a substantially dimensionally stable outer layer and at least one inner layer of different types of thermoplastic materials, in which first a preform of at least two coaxial, melted polymer tubes (2,3) , which have sufficient lengths for the manufacture of the container, is produced in a blowing process between the closed individual parts of a blow mold (4) in which a rigid blow mandrel (5) with a balloon (6) attached thereto passes through the mold into the interior of the preform is guided, the balloon (6) in the region of the container opening (7) is inflated, such that the least two layers are pressed to the tuyere (4) and solidify there, and finally pressure by the mandrel (5) into the interior of the Is passed preform.
2. Verfahren zur Herstellung eines mit einer Behälteröffnung (7) versehenen Behälters mit einer im wesentlichen formsteifen Außenschicht und wenigstens einer innen liegenden Schicht aus jeweils verschiedenartigen, thermoplastischen Kunststoffen, bei dem zunächst ein Vorformling aus wenigstens zwei koaxialen, schmelzförmigen Polymerschläuchen (2,3), die für die Herstellung des Behälters ausreichende Längen aufweisen, in einem Blasverfahren zwischen den geschlossenen Einzelteilen einer Blasform (4) erzeugt wird, bei dem ein starrer Blasdorn (5) mit einem darin untergebrachten Ballon in den Bereich der Behälteröffnung (7) geführt wird, der Ballon (6) im Bereich der Behälteröffnung (7) unter Verlassen des Blasdorns (5) aufgeblasen wird, derart, dass die wenigsten zwei Schichten an die Blasform (4) gedrückt werden und dort erstarren, und schließlich der Blasdorn in das Innere des Vorformlings geführt wird und Druck durch den Blasdorn (5) in das Innere des Vorformlings geleitet wird.2. A method for producing a container having a container opening (7) provided with a substantially dimensionally stable outer layer and at least one inner layer of different types, thermoplastic materials, in which first a preform of at least two coaxial, molten polymer tubes (2,3) which have sufficient lengths for the production of the container, are produced in a blowing process between the closed individual parts of a blow mold (4), in which a rigid blow pin (5) with a balloon housed therein is guided into the region of the container opening (7), the balloon (6) is inflated in the region of the container opening (7) leaving the mandrel (5) such that the at least two layers are pressed against the blow mold (4) and solidify there, and finally the mandrel into the interior of the preform is guided and pressure by the mandrel (5) in the interior of the preform gele it will be.
3. Verfahren nach Anspruch 1 oder 2, bei dem vor Einführung des Blasdorns (5) in dem Ballon (6) ein Vakuum erzeugt wird. 3. The method of claim 1 or 2, wherein before the introduction of the mandrel (5) in the balloon (6), a vacuum is generated.
4. Verfahren nach einem der Ansprüche 1 bis 3, bei dem der Ballon (6) mit Luft aufgeblasen wird, deren Temperatur unterhalb der Umgebungstemperatur liegt.4. The method according to any one of claims 1 to 3, wherein the balloon (6) is inflated with air whose temperature is below the ambient temperature.
5. Verfahren nach einem der Ansprüche 1 bis 4, bei dem der Ballon (6) mit einem höheren Druck aufgeblasen wird als der übrige Vorformling.5. The method according to any one of claims 1 to 4, wherein the balloon (6) is inflated with a higher pressure than the rest of the preform.
6. Verfahren nach einem der Ansprüche 1 bis 5, bei dem ein mit Polytetrafluorethylen beschichteter Ballon (6) verwendet wird.6. The method according to any one of claims 1 to 5, wherein a polytetrafluoroethylene coated balloon (6) is used.
7. Verfahren nach einem der Ansprüche 1 bis 5, bei dem ein mit Silikonen beschichteter Ballon (6) verwendet wird.7. The method according to any one of claims 1 to 5, wherein a silicone-coated balloon (6) is used.
8. Verfahren nach einem der Ansprüche 1 bis 5, bei dem ein Ballon (6) mit metallisierter Oberfläche verwendet wird.8. The method according to any one of claims 1 to 5, wherein a balloon (6) is used with metallized surface.
9. Verfahren nach einem der Ansprüche 1 bis 5, bei dem als Material für den Ballon (6) ein Werkstoffverbund aus Metallbauteilen in einer Polymermatrix verwendet wird.9. The method according to any one of claims 1 to 5, wherein as material for the balloon (6) a composite material of metal components is used in a polymer matrix.
10. Verfahren zur Herstellung eines mit einer Behälteröffnung (7) versehenen Behälters mit einer im wesentlichen formsteifen Außenschicht und wenigstens einer innen liegenden Schicht aus jeweils verschiedenartigen thermoplastischen Kunststoffen, bei dem zunächst ein Vorformling, bestehend aus wenigstens zwei koaxialen schmelzförmigen Polymerschläuchen, die für die Herstellung des Behälters ausreichende Längen aufweisen, in einem Blasverfahren zwischen den geschlossenen Einzelteilen einer Blasform (4) erzeugt wird, bei dem ein elastischer Blasdorn (5) mit einem größeren Einlass als der Auslass durch die Form in das Innere des Vorformlings geführt wird und mit Druck beaufschlagt wird, derart, dass der Blasdorn (5) im Bereich der Behälteröffnung (7) die wenigstens zwei Schichten an die Blasform (4) drückt, bevor sich der Druck im übrigen Vorformling ausbreitet.10. A process for producing a container having a container opening (7) provided with a substantially dimensionally stable outer layer and at least one inner layer of different thermoplastic materials, in which first a preform consisting of at least two coaxial melted polymer tubes, for the production of the container having sufficient lengths, is produced in a blowing process between the closed parts of a blow mold (4), wherein an elastic mandrel (5) is guided with a larger inlet than the outlet through the mold into the interior of the preform and pressurized is, in such a way that the mandrel (5) in the region of the container opening (7), the at least two layers press on the blow mold (4) before the pressure spreads in the rest of the preform.
11. Verfahren nach einem der Ansprüche 1 bis 10, bei dem die wenigstens zwei Schichten aus Kunststoff bestehen, die keine Verbindung miteinander eingehen.11. The method according to any one of claims 1 to 10, wherein the at least two layers are made of plastic, which do not form a connection with each other.
12. Behälter mit einer Behälteröffnung (7) und einem mehrschichtigen Wandaufbau, hergestellt nach einem der Ansprüche 1 bis 11, bei dem die Wand aus Schichten aus Kautschuk und Polyolefinen besteht.A container having a container opening (7) and a multilayer wall structure made according to any one of claims 1 to 11, wherein the wall is made of layers of rubber and polyolefins.
13. Behälter mit einer Behälteröffnung (7) und einem mehrschichtigen Wandaufbau, hergestellt nach einem der Ansprüche 1 bis 11, bei dem die Wand aus Schichten aus Kautschuk und Polyurethan in Form von thermoplastischen Elastomeren besteht.13. A container having a container opening (7) and a multilayer wall construction, prepared according to any one of claims 1 to 11, wherein the wall consists of layers of rubber and polyurethane in the form of thermoplastic elastomers.
14. Behälter nach Anspruch 12 oder 13, bei dem der Kautschuk ausgewählt ist aus der folgenden Gruppe:14. A container according to claim 12 or 13, wherein the rubber is selected from the following group:
hydrierter Nitril-Butadien-Kautschuk (HNBR), Ethylen-Propylen-(Dien)- Kautschuke (EPDM), Silikonkautschuke, Methyl-Phenyl-Vinyl-Kautschukhydrogenated nitrile butadiene rubber (HNBR), ethylene propylene (diene) rubbers (EPDM), silicone rubbers, methyl phenyl vinyl rubber
(MPVQ), Methyl-Phenyl-Silican-Kautschuk (MPQ).(MPVQ), methyl phenyl silican rubber (MPQ).
15. Behälter nach Anspruch 12, bei dem die Polyolefine ausgewählt sind aus der folgenden Gruppe:15. A container according to claim 12, wherein the polyolefins are selected from the following group:
low density Polyethylen (LDPE), linear low density Polyethylen (LLDPE), high density Polyethylen (HDPE), high molecular weight Polyethylen (HMWPE), ultra high molecular weight Polyethylen (UHMWPE), Polypropylen sowie deren Copolymere, Derivate und Blends. low density polyethylene (LDPE), linear low density polyethylene (LLDPE), high density polyethylene (HDPE), high molecular weight polyethylene (HMWPE), ultra high molecular weight polyethylene (UHMWPE), polypropylene and their copolymers, derivatives and blends.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004052360A DE102004052360A1 (en) | 2004-10-28 | 2004-10-28 | Process for the preparation of a container with a container opening and container produced by this method |
PCT/EP2005/055560 WO2006045813A1 (en) | 2004-10-28 | 2005-10-26 | Method for producing a container provided with a container opening, and a container produced according to this method |
Publications (1)
Publication Number | Publication Date |
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EP1812222A1 true EP1812222A1 (en) | 2007-08-01 |
Family
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EP05801319A Withdrawn EP1812222A1 (en) | 2004-10-28 | 2005-10-26 | Method for producing a container provided with a container opening, and a container produced according to this method |
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EP (1) | EP1812222A1 (en) |
JP (1) | JP2008517806A (en) |
CA (1) | CA2587071A1 (en) |
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WO (1) | WO2006045813A1 (en) |
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EP2077132A1 (en) | 2008-01-02 | 2009-07-08 | Boehringer Ingelheim Pharma GmbH & Co. KG | Dispensing device, storage device and method for dispensing a formulation |
EP2414560B1 (en) | 2009-03-31 | 2013-10-23 | Boehringer Ingelheim International GmbH | Method for coating a surface of a component |
JP5763053B2 (en) | 2009-05-18 | 2015-08-12 | ベーリンガー インゲルハイム インターナショナル ゲゼルシャフト ミット ベシュレンクテル ハフツング | Adapter, inhaler and atomizer |
AP3141A (en) | 2009-11-25 | 2015-02-28 | Boehringer Ingelheim Int | Nebulizer |
US10016568B2 (en) | 2009-11-25 | 2018-07-10 | Boehringer Ingelheim International Gmbh | Nebulizer |
WO2011064163A1 (en) | 2009-11-25 | 2011-06-03 | Boehringer Ingelheim International Gmbh | Nebulizer |
WO2011160932A1 (en) | 2010-06-24 | 2011-12-29 | Boehringer Ingelheim International Gmbh | Nebulizer |
WO2012130757A1 (en) | 2011-04-01 | 2012-10-04 | Boehringer Ingelheim International Gmbh | Medical device comprising a container |
US9827384B2 (en) | 2011-05-23 | 2017-11-28 | Boehringer Ingelheim International Gmbh | Nebulizer |
ITPD20110255A1 (en) * | 2011-07-28 | 2013-01-29 | A." | PLANT AND PROCEDURE FOR REALIZING GLASSES WITH BOMBATED SHAPE AND GLASS MADE WITH THIS SYSTEM AND WITH THIS PROCEDURE |
WO2013152894A1 (en) | 2012-04-13 | 2013-10-17 | Boehringer Ingelheim International Gmbh | Atomiser with coding means |
US9744313B2 (en) | 2013-08-09 | 2017-08-29 | Boehringer Ingelheim International Gmbh | Nebulizer |
EP2835146B1 (en) | 2013-08-09 | 2020-09-30 | Boehringer Ingelheim International GmbH | Nebulizer |
MX2016014402A (en) | 2014-05-07 | 2017-01-20 | Boehringer Ingelheim Int | Nebulizer and container. |
WO2015169430A1 (en) | 2014-05-07 | 2015-11-12 | Boehringer Ingelheim International Gmbh | Nebulizer |
CN106255554B (en) | 2014-05-07 | 2021-05-04 | 勃林格殷格翰国际有限公司 | Container, sprayer and use |
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US3032823A (en) * | 1960-05-26 | 1962-05-08 | Sherman Plastics Corp | Method of forming plastic articles |
DE1176830B (en) * | 1960-10-14 | 1964-08-27 | Kautex Werke Gmbh | Method and device for the production of hollow bodies from thermoplastic material by blow molding |
US3861851A (en) * | 1971-12-08 | 1975-01-21 | Schiemann Dr Wolfram | Apparatus for moulding the neck of an extruded hollow body |
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2004
- 2004-10-28 DE DE102004052360A patent/DE102004052360A1/en not_active Withdrawn
-
2005
- 2005-10-26 CA CA002587071A patent/CA2587071A1/en not_active Abandoned
- 2005-10-26 JP JP2007538410A patent/JP2008517806A/en active Pending
- 2005-10-26 EP EP05801319A patent/EP1812222A1/en not_active Withdrawn
- 2005-10-26 WO PCT/EP2005/055560 patent/WO2006045813A1/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
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See references of WO2006045813A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2008517806A (en) | 2008-05-29 |
WO2006045813A1 (en) | 2006-05-04 |
DE102004052360A1 (en) | 2006-05-04 |
CA2587071A1 (en) | 2006-05-04 |
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