EP3592322A1

EP3592322A1 - Plastic container product

Info

Publication number: EP3592322A1
Application number: EP18708942.0A
Authority: EP
Inventors: Michael Spallek; Johannes Geser; Alexander Hammer; Alexander BEIER; Michael Schultes
Original assignee: Kocher Plastik Maschinenbau GmbH
Current assignee: Kocher Plastik Maschinenbau GmbH
Priority date: 2017-03-07
Filing date: 2018-02-23
Publication date: 2020-01-15
Anticipated expiration: 2038-02-23
Also published as: JP7007387B2; KR102511663B1; US20200085688A1; WO2018162255A1; AU2018232417A1; DE102017002401A1; SG11201907438XA; MX2019010545A; CN110191697B; EP3592322B1; BR112019010889A2; RU2751496C2; CA3054973A1; JP2020510467A; RU2019129536A; AU2018232417B2; US11376192B2; CN110191697A; RU2019129536A3; KR20190121381A

Abstract

The invention relates to a plastic container product, particularly produced according to a blow-moulding, filling and sealing method, with a container body comprising a container content and a head part (12) connecting thereto, which defines a removal region (14) closed by a head membrane (16) comprising a joint seam (38) that passes through a plane (20) spanned by the head membrane (16), and separates at least two penetrable regions (22, 24) on the free front side (26) of the head membrane (16), for the removal of the content. The invention is characterised in that the joint seam (38), observed from the free front side (26) of the head membrane (16), has a seam line (36) that at least partially deviates from an imaginary straight line (32), and extends inside said plane (20), is longer than the straight line (32) and at least partially encompasses the penetrable regions (22, 24).

Description

kocher-plastik Maschinenbau GmbH, Talstraße 22-30, 74429 Sulzbach- Laufen

Plastic container product

The invention relates to a plastic container product, in particular according to a blow molding, filling and sealing method, having a container body having a container body and an adjoining headpiece which delimits a removal region which is closed by a head membrane, which has a connecting seam, which passes through a plane spanned by the head membrane and separated areas for a removal operation of the container contents penetratable areas on the free end face of the head membrane. Plastic containers that in a blow molding, filling and sealing process (BFS method) are hergestel lt, as described for example in EP 2 269 558 A1 and in the art under the name bottelpack ^® - system has become known used for food and beverages as well as in medicine with great advantage for the packaging of pharmaceuticals, diagnostics, enteral nutrition and medical devices, eg rinsing and dialysis solutions. A significant advantage of such containers for such purposes is that the contents are in exclusive contact with a polymer forming the container material, typically a plastic such as LDPE, HDPE or PP. In one-piece containers produced and filled according to the BFS process, the germ reduction / sterility of the contents can be ensured for longer periods of time. Behäl- ter, which are intended for injection, infusion, transfusion or enteral nutrition, have a special formation of the head area for the formation of access to the container contents. The one-piece design of container and head allows a secure sterility of the contents with particularly efficient implementation of the manufacturing process. Caps with elastomer sealing elements (DIN ISO 15759) are applied to the retaining head by welding or extrusion coating.

In such containers - as well as other container products for medical purposes, such as injection vials, cylindrical vials or plastic containers for injections (DIN EN ISO

15747: 2012-07) - may e.g. When piercing with injection needles or piercing, polymer or elastomer particles are punched out of the closure material. These loose particles may remain in the cannula, the syringe, or in the container itself. This can inter alia lead to a clogging of the cannula, which makes the removal and / or the injection process impossible; also particles can get into the product. In view of this problem, limits were already prescribed in the use of injection vials with elastomeric closure in EN ISO 8871-5: 2014, as well as in the US Pharmacopoeia Chapter 381. To address this problem - also known as fragmentation - to master, were reported by Marinacci et al. in the prior art (US 5868721) already proposed special needle geometries, which, however, makes expensive and expensive special needles necessary.

WO 81/02286 discloses a plastic container with preferred thin-walled piercing positions for a cannula, which are arranged on a defined lateral shoulder region of the container. Sufficient thinning can only be achieved here by a very complex tool technology. At the expense of confiscated areas, which make easy cleaning very difficult. Moreover, a complete emptying of the container through these thin points is not possible because they are not at the highest or lowest part of the container.

In contrast, US Pat. No. 4,574,965 (Meierhoefer) discloses a container product manufactured according to a blow-molding, filling and sealing method with a specially designed double-dome geometry without thinning for the container head so as to pierce the container with a cannula for a removal operation to ensure a secure sealing and no particle formation. In this case, a small wall thickness in the piercing area is not necessary. The necessary double-dome geometry allows only one piercing point and deviates very much from the proven head geometry of blow-molding, filling and sealing infusion containers designed as container products according to DIN EN ISO 15759: 2006-05 and makes special capping systems necessary in accordance with the well-proven ISO standard 15759: 2006-05, which in turn is cost-intensive and can impair the functional safety of the entire container system.

US 4574965 (FIGS. 1 and 3) also shows - as well as CN 85103261 A (FIGS. 1, 2 and 3) - a disadvantageous profile of the mold parting line in the head region (FIGS. 1 and 3: seam 18); As a result, the piercing point is very close to the edge of the container head and brings the great danger even at slightly divergent Einstechwinkel with the cannula and the neck region of the container to pierce unintentionally. Another disadvantage is the low central rigidity of the container head, which is taken up in DE 102013012809. In this document, a large number of different dome-like head shapes with a plurality of head faces are proposed for stiffening the head area, the cap designs also adapted in detail. Necessary and considerably reduce the piercing area in relation to the top surface according to DIN EN ISO 15759: 2006-05. This also reduces the possible distance between the two piercing points from each other, which in turn can lead to disadvantages in the application, for example, when administering an infusion, if a pierced infusion device (EN ISO 8536-4: 2013) with the right sweeping drip chamber, the piercing site for blocks the cannula, with which another medication must be injected during the infusion. EP 0621027 A1 (Weiler) shows in Figure 4 a container with a dividing line (42, "Parting I ine", column 8, lines 26ff), which extends in a frontal view straight across the container body The parting line results from the separations of the forming two-part tool The corresponding sealing or connecting seam in the head area has a minimal length and follows the course of the dividing line in a straight line As in this example, in general - not only For blow molded containers - Sealing seams should be as short as possible to minimize the risk of weaknesses, imperfections or even leaks, which can have very serious consequences for the health of the patient in the case of filled sterile containers for medical purposes.

In particular, sealing seams in containers with multilayer wall construction - for example described in EP 1616549 B1 and DE 10347908 A1 - are sensitive and prone to occurring leaks.

DE 102013012809 A1 relates to a container product in which, instead of a uniform head membrane, which spans the end of the head part of the container body with uniform curvature, different top surfaces are formed which have different curvatures at the head end form, so that for the total possible removal area of the head membrane increased resistance to deflection and easier puncturing, cutting or penetration is achieved. Avoidance of the head membrane during the removal process and the risk of leaks are thereby kept to a minimum and the handling is also possible safely when using less sharp puncture spikes, cutting edges or thick cannulas.

Based on this prior art, the present invention seeks to provide a container product that is further improved over the known solutions, in particular as regards the handling and removal behavior for the container contents.

A related object solves a container product with the features of claim 1 in its entirety.

Because according to the characterizing part of patent claim 1, the connecting seam seen on the free end face of the head membrane has a seam course at least partially deviating from a fictitious rectilinear course, extending within this plane, which is longer than the rectilinear course and At least partially encompassing the penetrable areas, it is possible to form very thin-walled, penetratable areas which are supported by the extended connecting or sealing seam lying in the plane of the head membrane in such a way that it is connected to the container during a removal or addition operation each penetrable area can not unintentionally come to a denting of the entire head membrane with worsened removal behavior, in particular concerning the sterility. Since in this respect erroneous operations are excluded, the handling of the plastic container product according to the invention as a whole is made easier for an operator and, moreover, a safe addition and / or removal In any case, the container contents were taken care of. The support and stiffening function for the addition or removal process via the connecting seam according to the invention is also ensured by the fact that this leaving the geradl inige orientation, at least partially encompasses the penetrable areas and so further stiffening edge. Due to the supporting and securing seam of the head part, it is therefore possible to reduce the penetrable areas on the free end face of the head membrane from the wall diameter with respect to the other wall parts of the head membrane, which further facilitates the mentioned addition and / or removal process.

It is surprising for a person of ordinary skill in the art that, as compared to an otherwise straight-lined course, substantially elongated connecting seam using the known blow-molding, filling and sealing method (FSO) in a production-safe manner is thinner than penetrable ranges of 0, 1 0 mm to 0.25 mm can easily produce, without causing leaks at the seam, the fachsprachl I also as a head seal seam or head weld is called, and without it for tearing at the Dünnstel len occurring internal pressure stresses in Temperature range above 1 1 0 ° C comes; Temperature ranges, such as those arising during the sterilization of the filled container product in the context of the necessary autoclave process. On the one hand, this seems to be due to the counter-shearing movement of the still hot polymer in the third manufacturing step of the BFS process, ie, the sealing of the container head part, to an obviously favorable orientation of the polymer chains and / or an advantageous state of stress in the head membrane system. Connecting seam / enterable areas to come. On the other hand, as already mentioned, the supporting effect of the connecting seam which comes close to the thin piercing surfaces is of particular importance. In a particularly preferred embodiment of the container product according to the invention the seam course of the connecting seam is formed as a kind of sealing or welding seam, which arises during the head part creation in the context of the blow molding, filling and sealing process (BFS), which runs along on opposite sides of the head part along the same and merges into the mold parting line that results from its production with multi-part forming tools as part of the BFS process. In the production of the pertinent sealing seam for the head part, the addressed penetrable areas are also formed in the head membrane within the scope of the stated production method with reduced wall thickness compared to the average wall thickness of the head membrane. The seal or weld fully penetrates the head membrane in a sealed manner.

As further particularly advantageous, it has been found that the seam course in the head membrane merges at two opposite points in the corresponding parting lines / seam course in the other head part, which form a fictitious connecting straight line between them, on which the centers of the penetratable areas of the head membrane lie and / or outside, and that in one embodiment, the notional straight line limits at least one penetrable area in the manner of a tangent or this area occupies a predeterminable distance to the notional straight line. In this way, for a large number of applications, the penetrable areas can be arranged in a supported manner on the head membrane of the container product in a manner safe of use.

In this context, it has further proven to be particularly advantageous to form the connecting seam similar or directly to the course of a sinusoidal wave on the top membrane, the wave trough and / or Wellenberg each receives a penetratable region of the head membrane and thus at least partially comprises supporting.

In a further particularly preferred embodiment of the container product according to the invention, it is provided that the container body is preferably fixedly connected via its head part and / or via a collar between the head part and the container body to a cap part which has externally releasable or released piercing parts which are to be arranged congruent with the assignable penetrable areas of the head membrane. As the addressed penetrable

Regions in the head membrane can be arranged eccentrically and the cap part with its piercing parts to cover the penetrable areas for a removal operation, it is possible and advantageously provided according to apply the cap parts rotated to the container by a predetermined offset angle.

Further advantageous embodiments of the container product according to the invention are the subject of the other dependent claims. Overall, a container product is created with the solution according to the invention,

- which can be produced safely and reproducibly by the blow-molding, filling and sealing process with a low risk of leakage,

- whose container head geometry is essentially DIN ISO 1 5759:

2006-05 corresponds,

- Which preferably has two spatially separated, equally penetrable areas with controlled low wall thickness, in the piercing with a standard cannula (DIN EN ISO 7864) - if at all - even without a cap very few particles are punched with - the low piercing forces when piercing with a piercing part of an infusion device in accordance with EN ISO 8536-4: 201 3, and

- It makes it possible to apply cap parts with two piercing len also in oblique positions on the container body.

In the following, the solution according to the invention will be explained in more detail on the basis of exemplary embodiments of a container product. In principle, they show the notion of principle and not of scale

FIG. 1 shows a perspective view of a plastic container product in the form of an infusion container with a head part according to FIG

State of the art according to DI N ISO 1 5759;

Fig. 2 is an enlarged view of the head portion of the container product of Fig. 1;

Fig. 3 is a corresponding to Fig. 2 depicting development of an amended head portion for a container product according to the invention; Fig. 4 is a frontal plan view of a head membrane, as used for a head part of FIG. 3;

Fig. 5 to 8 one of Fig. 4 each corresponding presen- tation of a

Head membrane, however, each with different joint seams and different arrangement of penetrable areas; a Schnittdarstel ment by a head portion of another embodiment of a container product according to the invention with a mögl ichen head membrane training according to one of Figures 3 to 8 with an attached cap portion, wherein for carrying out a removal operation of the container contents of the state during the insertion with a piercing dargestel. and a perspective Darstel development of the cap portion of FIG. 9 with cap side covered piercing, wherein the cap member is arranged as a whole of its position relative to the longitudinal direction of the container product only partially shown obliquely.

FIG. 1 shows a plastic container product that can be detected in the prior art (DE 1 0 201 3 01 2 809 A1), which is manufactured according to the so-called blow molding, filling and sealing method (BFS) with one Container contents (not shown) of a container body 10 of the type having a typical type and a head part 1 2 adjoining it, which delimits a removal area 14 which is closed by a head membrane 16 which has a connecting seam 18 which is one of the 2, two penetrable areas 22, 24 on the free end face 26 of the head membrane 1 6 separated from each other, the ideal isiert in a circular shape with their centers M1, M2 are dargestel lt. Parts of the head part 1 2 are further a neck part 28 and a collar part 30. The container product shown in FIG. 1 is an infusion bottle produced in one piece according to the BFS method, consisting of a plastic material, in particular a polyolefin material. The in the example shown the prior art according to DIN ISO

15759: 2006-05 formed head part 12 can be connected to cap parts 31 according to ISO 15759-BFS-A or ISO 15759-BFS-B by welding or encapsulation on the collar part 30, as shown by way of example in Figures 9 and 10. At the free end-side end of the head part 12 is for removal and / or addition processes, the continuous and uniformly convex curved head membrane 16, for example by means of a cannula (DIN EN ISO 7864) or a piercing 34 (EN ISO 8536), as exemplified in represented in Fig.9, in the indicated arrow direction is pierceable. If one looks from above in a vertical plan view of the end face 26 of the head membrane 16, the protruding thereon shown bulging connecting seam 18 follows a fictitious rectilinear curve 32, which is shown in dashed lines in Figure 2. This fictitious rectilinear course 32 establishes the shortest connection between two points E1 and E2, at which the known connecting seam 18 continuously merges into the adjoining shape-separating line 19 in the head part 12. The so far arcuate or tendon-shaped between the punctiform points E1 and E2 extending connecting seam 18 follows the curvature of the head membrane 16 and is designed as a kind of reinforcing rib preferably by a predetermined projection on the free end face 26 of the head membrane 16 before. Furthermore, the mold parting lines 19 merge into a mold parting line 21 of the container body 10, which is typically formed in the BFS process by means of a two-part mold.

As seen in the direction of FIG. 2, on both sides of the curved connecting seam 18 there are the two opposite penetratable areas 22, 24 which, for the sake of simplicity, are considered to be closed. sene circles are shown with their centers M1 and M2. However, the regions 22, 24 can also have other peripheral geometries due to their production, for example elliptical, crescent-shaped or the like. These penetratable or pierceable areas 22, 24 have, as is suggested in FIG. 9, reduced wall thicknesses which are smaller than the other wall thickness of the head membrane 1 6. The reduced wall thicknesses for the penetratable areas 22, 24 as already stated, may actually have a slightly different shape than a circular shape, resulting from flow processes of the material during the manufacturing process by means of the BFS process; However, they can also be intentionally obtained by appropriate shaping via suitable tools in the head membrane 16. For the sake of completeness it should be mentioned that according to ISO 1 5759 the diameter of the head membrane 1 6 can typically be 30 mm.

The connecting seam 18, which is also referred to as head seam seam in technical terms, thus extends from the one point E1 of the head part 12 to the opposite point E2 of the same head part and, as reinforcing means in the form of a protruding rib, at least partially provides resistance to unwanted impressions of the entire head membrane 1 6 when preparing a removal device, such as a cannula or a piercing part 34 for a subsequent removal or addition process concerning the container contents. Without such a rib-like reinforcing device, no puncturing by the head membrane 1 6 would essentially take place when the piercing tool 34 strikes as shown in FIG. 9, but rather would be arched inward with thin-walled formation and effective piercing or penetrating in this respect be prevented. If one then forms, which seems to be obvious, the head membrane 1 6 of its wall thickness according to thick, then the head membrane 1 6 then even a resistance even without bead-reinforced connection is approaching 18; All that is required is an increased force expenditure for the piercing operation by means of the piercing tool 34 and, in particular, the already mentioned fragmentation occurs, in which loose plastic particles increasingly pass from the thickened wall areas into the withdrawal channel (not shown) of the piercing tool 34, which is to avoid in any case.

Although the rib-like reinforcing seam 18 according to the depictions in the prior art according to FIGS. 1 and 2 already provides a remedy for this problem; Nevertheless, it has been found in practice that this known solution for a functionally reliable and undisturbed removal process for a container, especially in the form of an infusion container, still leaves desires that lungs with the inventive solution according to the depicting according to FIGS. 3ff erfulf , The vol lständigkeithalbber should be mentioned at this Stel le that for the removal process by means of a puncture of container contents from the container upstream of this an addition operation of at least one medium may be provided, for example in the form of a drug delivery in the already finished filling container with the container liquid , like an infusion fluid. In FIG. 9, only in principle, the insertion tool 34 may be a diseased hypodermic needle of a syringe.

In the inventive solution according to FIGS. 3 and 4, the seen on the free end face 26 of the head membrane 1 6 respectively arranged, inventive seam 38 has a deviating from the fictitious geradl inigen course 32 seam 36 which within the plane 20 respectively within the bulging head membrane 1 6 extends as a surface, is longer than the geradl inige course 32 and the at least partially encompasses the penetrable areas 22, 24. The non-straight course 36 of the connecting seam 38 according to the invention gives an operator an indication of the position or position of the respectively penetratable part. Reichs 22, 24 on the head membrane 1 6, since the connecting seam 38 in about half of the respective penetratable region 22, 24 comprises.

3 and 4, the connecting seam 38 extending within the plane 20 of the head membrane 16 has an alternating, preferably curved course which forms a sinusoidal shaft 40 whose wave trough 42 and the associated wave peak 44 each have a penetratable one Area 22 and 24 of the head membrane 1 6 receives and thus at least partially in half comprises. The seam course 36 in the head membrane 16 also passes here again at two opposite points E1, E2 in the other seam course in the head part 12, wherein the two opposite points E1 and E2 form the fictitious connecting line 32 between them, the fictitious straight seam 32 after of Fig. 2 corresponds. The centers M1, M2 of the penetratable regions 22, 24 of the head membrane 16 lie on this fictitious connection line 32.

The head diaphragm 116 has a circular outer circumference and the said notional connecting straight line 32 defines, with another notional connecting straight line 48 perpendicular to the straight line 32, a fictitious center point Z through which the shaft 40, as shown in FIG the seam 38 of the invention at the point of transition from wave trough 42 to wave mountain 44 goes. If, as shown in FIG. 4, a tangent is applied to the wave trough 42 and the wave peak 44 through the center point Z, this tangent T with the imaginary connecting straight line 32 forms an angle α of approximately 50 °. Other angular dimensions α in the range of approximately 40 ° (FIG. 8) to 75 ° (FIG. 5) are possible here depending on the embodiment of the connecting seam 38. In the embodiment of FIG. 7 runs the

Transition from wave valley 42 to wave mountain 44 outside the central fictitious ven center point Z by the other center point Z + 1, then through the then according to the illustration of FIG. 4, the tangent would be to lay. At the angle α does not change in this respect. As is further apparent from Figs. 3 and 4, the beginning P1 of wave trough 42 and the beginning or end P2 of the wave peak 44 of a shaft 40 of the connecting seam 38 in each case a section 50, which in turn in plan view, on the front side 26 seen the head membrane 1 6, along the notional connection line 32 extends, wherein the respective section 50 at the edge opens out in the opposite positions E1, E2 on the head part 12. Instead of rectilinearly selected sections 50, these can also have an arcuate course in continuation of the sine wave 40 or in opposite directions to this wave path. The length of the wave-shaped connecting seam 38 is preferably selected to be at least 30% longer than the diameter of the circularly shaped head membrane 16.

The penetrable or pierceable areas 22, 24 on the head membrane 16 are selected to be substantially equal in the embodiment of FIGS. 3 and 4. 9, the two penetrable areas 22, 24 on the head membrane 16 have wall thicknesses which are smaller than the other average wall thickness of the other head membrane 16 and the average wall thickness of a penetratable area 22, 24 lies preferably between 0.1 5 mm and 0.35 mm. The wall thicknesses for each penetrable area 22, 24 can also be chosen differently, so that, for example, a penetratable area is particularly suitable for introducing a puncture cannula and another penetrable area allows good accessibility for the introduction of a syringe needle. Furthermore, the two areas of the penetrable areas 22, 24 can be selected to be of different sizes, as shown by way of example in FIG. 7 for a head membrane 1 6 modified to that extent, wherein in one embodiment of a head membrane 1 6 according to FIG. 8, the sequence of wave trough 42 on Wellenberg 44 is exchanged such that seen in the direction of Fig. 8 first on the left side of the wave peak 44 comes before the wave trough 42.

The connecting seam 38 on the respective head membrane 1 6 may protrude in the manner of a reinforcing rib at least partially outwardly to the environment and / or in the direction of the interior of the container body 10, wherein an outward projection for the known solution according to FIG. 2 is shown there , For the sake of simplicity, the rib design was omitted in the illustration in FIGS. 3ff. The head membrane 1 6 shown in the figures is shown in each case as a curved surface in the form of the plane 20, which projects convexly outwards to the environment. However, it is quite possible, the head membrane 1 6 as a plane, i. form uncurved, planar plane (not shown). As a plastic material for the container body 10 is a polyethylene, a cycloolefin polymer, a polypropylene in question, as well as a cycloolefin copolymer, a polypropylene copolymer or a polypropylene blend. Furthermore, the container wall of the container according to the invention may have a multilayer structure (not shown) of at least two materials.

In order to obtain the wave-shaped connecting seam 38, it is necessary, with a corresponding molding device, to design the molding tools in such a way that they have the necessary mold recesses and projections on their opposite end faces in order to obtain the wave form for the head part 12. A pertinent molding device for moving molds for generating pertinent head geometries in plastic containers with slide control is exemplified in DE 103 1 7 712 A1. The waveform shown in the figures for the connection seam 38 has manufacturing technology as proved particularly advantageous. However, other wave forms can also be selected, for example in the form of an S-shaped arc with a different curve shape. Furthermore, meander-shaped seam courses or zig-zag-shaped seam courses can be implemented in case of need. It is important that the seam course of the connecting seam 38 is selected such that the respectively penetratable regions 22, 24 are at least partially covered in order to sufficiently stabilize them during the piercing. Furthermore, an improved overall reinforcement of the otherwise flexible plastic head membrane 1 6 is achieved overall due to the extended seam course 36. Furthermore, it is possible to also attach more than two penetratable areas on the head membrane 16 (not illustrated).

The further embodiments of the head membrane 1 6 for a container product according to the invention in accordance with the depictions in FIGS. 5 to 8 are explained only insofar as they differ substantially from the preceding embodiments and if they have not already been adequately explained. In the embodiment according to FIG. 5 of a head membrane 16, the penetratable region 22 is tangent on its upper side by the imaginary connecting straight line 32, and the further penetratable region 24 has a predeterminable axial distance to this connecting straight line 32. In the embodiment according to FIG. 6, the tangent T applied to world valley 42 and Wel lenberg 44, which passes through the center point Z, is steeper than in the embodiment according to FIG. 4. Further, the connecting straight line lies as a further tangent Viewed in the direction of view on FIG. 6 at the top of the penetrable area 22 or at the bottom of the further penetrable area 24, both of which are roughly the same size in terms of area. In the embodiment according to FIG. 7, the penetratable region 24 is chosen to be smaller in diameter than the penetratable region 22. Furthermore, as already explained, the course of the shaft 40 goes off-center to the center point Z through the further center point Z + 1. sets arranged. In the embodiments according to Figure 8, the two penetrable areas 22, 24, which are approximately the same size, are affected by the connecting line 32 and, as already explained, the course of wave trough 42 to wave mountain 44 according to the embodiments of FIGS .3 to 7 reversed.

In the embodiment according to Figures 9 and 10, the cap member 31 is mounted on the head part 12 in a conventional manner. The cap member 31 is preferably made of a rigid plastic material which generally has the shape of a circular cup 52 with bottom and releasable tabs 54, 56, of which, as shown in Figure 9, the right tab 56 is for a picking operation is removed by means of the plunge tool 34. The cap member 31 is integrally attached at its lower edge to a flange 58, which extends at the head portion 12 between the collar portion 30 and the neck portion 28. For the sake of simplicity, FIG. 9 does not show the container body 10, which, by the way, may also have a different shape than the container body 10 shown in FIG. 1. The cap part 31 has two piercing parts 60, 62, which cover the respective penetratable regions 22, 24 in an associated manner (see FIG. The piercing members 60, 62 each form a type of sealing member and are preferably formed of an elastomeric material having a low rigidity and low hardness. Thermoplastic elastomers are preferably used for the piercing parts 60, 62, which can be connected to the cap part 31 in a simple manner by welding, for example, by welding. As is apparent from the presen- tation of FIG. 1 0, the transition in the form of the neck portion 28 between the other head portion 12 and the container top of the container body 1 0 has been omitted for the sake of simplicity. Furthermore, with the solution with a cap part 31 according to FIGS. 9 and 10, a particularly secure solution is achieved, since released only after removal of the respective strap 54 and / or 56, the penetrable areas 22 and 24 for a removal or addition are, in which case the piercing tool 34 has yet to penetrate the respective respective elastomeric piercing member 60, 62.

Furthermore, it is possible with the solution according to the invention I mögl, as shown in particular in FIG. 1 0, the cap portion 31 the penetratable areas 22, 24 assigned offset put on the head part 1 2. Thus, the two penetrable areas 22 and 24 on (Fig. 4) or outside (Fig. 5 - 8) of the notional connecting line 32 l lie, so far as the longitudinal axis 64 through the two tabs 54, 56 drawn with the notional straight line 32nd includes an offset angle β, which according to the embodiment of FIG. 1 0 can enclose in approximately 45 °; but may also readily have values between 0 ° (Fig. 4.) to about 30 ° (Fig. 5) and beyond. Thus, it is possible depending on the purpose of the cap alignment of the cap member 31 for a BFS bottle with its two approaches 60, 62 parallel to the axis 32 of the container 1 0 align; but also with other cap orientations, preferably between 0 ° to 50 °, to the longer transverse axis or connecting straight line 32 of the container bottle 10, as shown in FIG. 10.

Claims

P a n t a n s p r e c h e

1 . Plastic container product, in particular according to a blow molding, filling and sealing method, having a container body having a container body (10) and an adjoining thereto head part (12) which limits a removal area (14) of a head membrane (1 6) is closed, which has a connecting seam (38), which engages through a plane of the head membrane (1 6) (20) and for a removal operation of the container contents at least two penetrable areas (22, 24) on the free End face (26) of the head membrane (1 6) separated from each other, characterized in that on the free end face (26) of the head membrane (1 6) seen connecting seam (38) of a fictitious geradl inigen course (32) at least partially deviating seam course (36) extending within said plane (20), which is longer than the geradl inige course (32) and the penetratable portions (22, 24) at least partially included. 2. Container product according to claim 1, characterized in that the connecting seam (38) extends from one point (E1) of the head part (12) to a gegenüberlieending point (E2) thereof and as reinforcing means at least partially a counter to unwol lly pressing the Head membrane (1 6) offers.

3. container product according to claim 1 or 2, characterized in that the course of the connecting seam (38) respectively the reinforcing means of an operator gives a clue about the position of the respective penetrable area (22, 24) on the head membrane (1 6). Container product according to one of the preceding claims, characterized in that within the plane (20) of the head membrane (16) extending connecting seam (38) has an alternating, preferably curved course.

Container product according to one of the preceding claims, characterized in that the curved course substantially resembles a single, preferably sinusoidal shaft (40) whose wave trough (42) and / or wave crest (44) each have a penetratable region (22, 24). the head membrane (16) receives and thus at least partially.

Container product according to one of the preceding claims, characterized in that the seam (36) of the connecting seam (38) is formed as a kind of parting line, which arises during the head part creation in the blow molding, filling and sealing process, which on opposite sides the head part (12) continues along the same (19) and merges into a mold parting line (21) of the container body (10), which, when manufactured, is formed from a multi-part molding tool in the same method.

Container product according to one of the preceding claims, characterized in that the seam course (36) in the head membrane (16) merges at two opposite points (E1, E2) into the seam course (19) in the head part (12), which has a fictitious connecting straight line (32 ) on which the centers (M1, M2) of the penetratable regions (22, 24) of the head membrane (16) lie and / or outside, and that in one embodiment the notional straight line (32) has at least one penetratable region (22, 24) limited in the manner of a tangent or this area occupies a predeterminable distance to the notional straight line (32).

8. Container product according to one of the preceding claims, characterized in that the head membrane (16) has a circular outer circumference and the fictitious connecting line (32) with another fictitious connecting line (48) which is perpendicular to her, at the point of their crossing a define the fictitious center point (Z) through which the shaft (40) of the connecting seam (38) passes at the location of the transition from wave trough (42) to wave peak (44).

A container product according to any one of the preceding claims, characterized in that a tangent (T) is applied to the trough (42) and / or the crest (44) passing through the fictitious center point (Z) or another center point (Z + 1 ), an angle α with the notional connecting line (32) of 10 to 90 degrees, preferably from 30 to 70 degrees, more preferably from 40 to 60 degrees, includes.

10. Container product according to one of the preceding claims, characterized in that the sequence of wave trough (42) on Wellenberg (44) is exchanged.

11.A container product according to one of the preceding claims, characterized in that the beginning (P1, P2) of wave trough (42) and / or wave crest (44) of a shaft (40) of the connecting seam (38) merges into a section (50), in plan view, on the front side

(26) of the head diaphragm (16), along the notional connecting line (32) extends and in each case in the opposite points (E1, E2) opens at the head part (12). 12. Container product according to one of the preceding claims, characterized in that the length of the connecting seam (38) is at least 20%, preferably at least 30%, longer than that Diameter of the preferably circular designed head membrane (1 6), seen in the end view.

1 3. Container product according to one of the preceding claims, characterized in that the penetrable areas (22, 24) on the top membrane (1 6) have wall thicknesses which are smaller than the other average wall thickness of the head membrane (1 6), in particular in the area the connecting seam (38), and the average wall thickness of a penetrable area (22, 24) between 0, 1 0 mm to 0.40 mm, preferably between 0.1 5 mm and 0.35 mm long.

14. Container product according to one of the preceding claims, characterized in that the wall thicknesses and / or the surfaces of the two penetrable areas (22, 24) on the top membrane (1 6) unterschiedl I are large.

1 5. Container product according to one of the preceding claims, characterized in that the connecting seam (38) on the top membrane (1 6) in the manner of a reinforcing rib at least partially outwardly to the environment and / or in the direction of the interior of the container body (10) protrudes ,

1 6. Container product according to one of the preceding claims, characterized in that the container body (10) via its head part (12) and / or via a collar (30) between the head part (12) and the container body (10) with a cap part ( 31) is preferably firmly connected, the externally releasable or released piercing parts (60, 62), which are arranged overlapping with the assignable, penetratable areas (22, 24) of the head membrane (1 6).

1 7. Behältererzeugn is according to one of the preceding claims, characterized in that depending on the position of the penetrable areas (22, 24) len in the head membrane (1 6) d the Aufsetzrichtung the Kappentei ls (31) with their jewei time lenstechtei (60, 62) relative to the notional connecting line (32) on Kopftei l (1 2) with an offset angle ß of less than 70 °, preferably less than 50 °, more preferably less than 30 ° is applied.

1 8. Behältererzeugn is according to one of the preceding claims, characterized in that the Kappentei l (31) on a reinforcing rib on the free end face (26) of the head membrane (1 6) is set, ie preferably from the connecting seam (38) gebi is alive.

1 9. Container product according to one of the preceding claims, characterized in that the head membrane (1 6) has an unbent, planar or a curved plane (20) which protrudes convexly outwards to the environment.

20. Behältererzeugn is according to one of the preceding claims, characterized in that the plastic material is a polyethylene, a polypropylene, a polypropylene copolymer or a polypropylene blend used as a container material and / or that the container wall of the container body (1 0) a mehrsch ichtliche structure from m at least two materials ien.