BE1025052B1 - CONTAINER FOR PACKAGING UNDER PRESSURE OF CONTINUOUS FILL PRODUCT, AND PRODUCTION METHOD FOR THIS - Google Patents

Abstract

This invention relates to a container for packaging of a continuum fill product under pressure, i.h.b. (semi) liquid, in particular fluids, such as pastes, creams, gels, powders, which is remarkable in that it consists of a plastic polymer container comprising two end openings at the top and bottom of a jacket which forms the body of the container, the bottom side is closed by a separately added bottom (2) which is attached to the casing of the container (1) by means of a connection (13) and which is closed at the top with a valve (5); and method for manufacturing them.

Description

(30) Priority data:

(73) Holder (s):

TRADIDEC NV

9070, DESTELBERGEN

Belgium (72) Inventor (s):

THE CUYPER Dirk

9070 DESTELBERGEN Belgium

DIERICKX William

9070 DESTELBERGEN

Belgium (54) CONTAINER FOR PRESSURE PACKAGING OF CONTINUOUS FILLING PRODUCT, AND PRODUCTION METHOD FOR THIS (57) This invention relates to a container for packaging continuous fill product under pressure, especially. (semi) liquid, in particular fluids, such as pastes, creams, gels, powders, which is remarkable in that it consists of a plastic polymer container comprising two end openings at the top and bottom of a jacket that forms the body of the container, of which the bottom side is closed by a separately added bottom (2) which is attached to the jacket of the container (1) by means of a connection (13) and which is closed at the top with a valve (5); and method of making this.

BELGIAN INVENTION PATENT

FPS Economy, K.M.O., Self-employed & Energy Publication number: 1025052 Filing number: 2012/0681 Intellectual Property Office International Classification: B65D 83/38 B65D 83/42 B65D 83/64 B65D 83/62 Date of grant: 05/10/2018

The Minister of Economy,

Having regard to the Paris Convention of 20 March 1883 for the Protection of Industrial Property;

Having regard to the Law of March 28, 1984 on inventive patents, Article 22, for patent applications filed before September 22, 2014;

Having regard to Title 1 Invention Patents of Book XI of the Economic Law Code, Article XI.24, for patent applications filed from September 22, 2014;

Having regard to the Royal Decree of 2 December 1986 on the filing, granting and maintenance of inventive patents, Article 28;

Having regard to the application for an invention patent received by the Intellectual Property Office on the date of 10/10/2012.

Whereas for patent applications that fall within the scope of Title 1, Book XI, of the Code of Economic Law (hereinafter WER), in accordance with Article XI.19, § 4, second paragraph, of the WER, the granted patent will be limited. to the patent claims for which the novelty search report was prepared, when the patent application is the subject of a novelty search report indicating a lack of unity of invention as referred to in paragraph 1, and when the applicant does not limit his filing and does not file a divisional application in accordance with the search report.

Decision:

Article 1

TRADIDEC NV, Park ter Kouter 16, 9070 DESTELBERGEN Belgium;

represented by

EECKHAOUDT Sabine, Gloxiniastraat 28, 9940, EVERGEM;

a Belgian invention patent with a term of 20 years, subject to payment of the annual taxes as referred to in Article XI.48, § 1 of the Code of Economic Law, for: CONTAINER FOR PACKAGING UNDER PRESSURE OF CONTINUOUS FILLING PRODUCT, AND PRODUCTION METHOD FOR THIS.

INVENTOR (S):

DE CUYPER Dirk, Molenweidestraat 5, 9070, DESTELBERGEN;

DIERICKX William, Leenstraat 41, 9070, DESTELBERGEN;

PRIORITY :

BREAKDOWN:

Split from basic application:

Filing date of the basic application:

Article 2. - This patent is granted without prior investigation into the patentability of the invention, without warranty of the merit of the invention, nor of the accuracy of its description and at the risk of the applicant (s).

Brussels, 05/10/2018,

With special authorization:

BE 2012/0681

2012/0681

Retainer for pressurized packaging of continuum filler, and production method therefor

The present invention relates to a plastic pressure container, which is intended for packaging of continuum filler product, in particular fluids such as gases or liquids, if necessary, semi-liquid, of the type of pastes, creams, foams, gels, and even powders, etc., to be expelled after exercise of a printing operation on the container.

Such retainers are comprised of plastic polymer, comprising at least 1 end opening at the top of a jacket that forms the body of the container, which can be closed at the top with a cap-type valve.

Plastic pressure receptacles show a number of advantages compared to those of metal, in terms of the environment and sustainability, due to a lower energy and transport cost, which leads to a reduced CO ₂ emission. In addition, they are non-corrosive, have a lower weight and can be transparent if necessary. In contrast, they can deform slightly if pressure is applied. Another limitation is in case of a long-term load on the plastic exhibiting this creep. However, this can be considerably limited if an appropriate selection of plastics is made.

The object of this invention is to pressurize the container acting as packaging with the filling product, from atmosphere to about min. 20 bar and even 50 bar and more.

According to the invention, a container of plastic polymer is proposed for this purpose, as defined in the main claim. This is remarkable because an inner holder is provided in the latter holder. Thus, one of the applications can be to make a pressure package by means of a bottle in an inner bottle going up to 20 Bar and even more, if necessary up to 100 Bar, so that if something is going on inside the container, it is the outer container who can and will take care of everything, acting as a kind of safety container.

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According to a rather curious embodiment of the invention, Pascal's law has been applied which states that a pressure exerted on a liquid contained in a fully filled and closed vessel will propagate undiminished in all directions. This law can be applied to a pressure vessel that consists of an inner vessel and an outer vessel, where the outer vessel completely encloses the inner vessel. If the inner container is placed under a high pressure and the outer container under a lower pressure, whereby both pressures are naturally higher than atmospheric pressure, the residual pressure on the inner container is equal to the difference between the high pressure of the inner container minus the lower (against ) pressure from the outer bracket. This has the advantage that the inner container can be made lighter than normal expectations to withstand the high pressure.

According to a possible embodiment of the invention, the pressure package can be formed by a multi-chamber system consisting of at least two chambers, in the case of a two-chamber system the container is closed at the bottom as determined and a chamber separation is arranged to create the various chambers in the container . In this case, the room separation can be provided with at least one pressure control valve, respectively. gassing valve. I.h.b. this pressure control valve can be a closure, which can be indirectly opened from the outside by means of the pressure control valve, so that the contents of one chamber can come into contact with the other chamber, whereby the chambers are under pressure or not, if necessary, where both the bottom and top sides are closed by means of the same closing piece, in particular a valve, especially wherein this lid consists of a dosing valve, or possibly a screw cap or other valves.

The intention of including the aforementioned inner container can also advantageously exist in the creation of a so-called counter-keeper, on the understanding that a negative pressure is created with respect to the other keeper, namely the outer keeper. This creates, as it were, a kind of pressure regulator holder. The inner container is thus placed under pressure, whereby two different pressures are regulated for both containers.

According to a further advantageous embodiment of the pressure container according to the invention, one or both of the interior and / or the. outdoor holders transparent.

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According to a particularly advantageous embodiment, the pressure container according to the invention consists of a combined embodiment of double container as described above on the one hand, and with a multiple chamber system on the other.

In general, the pressure container according to the invention is remarkable in that it comprises at least one end opening, in particular. two, on top and bottom side of a jacket forming the body of the container, the bottom side of which is closed by a separately added bottom which is attached to the jacket of the container by means of a connection and which is closed at the top with a valve .

According to a special embodiment of the invention, a valve is included in the added bottom of the container package.

According to a further defined embodiment of the invention, the packaging under pressure goes up to about 20 bar and even up to 100 bar, especially. at a temperature of about 55 ° C.

According to an advantageous embodiment of the invention, said plastic consists of PET (polyethylene terephthalate). However, it can also consist of another plastic such as polyolefins, polyesters, PETG, PBT, ... With a proper selection of plastics, unsuitable deformations can be better controlled.

According to a specific embodiment of the invention, the welding connection consists of a laser, induction or ultrasonic connection.

According to a preferred embodiment of the invention, a reinforcement is effected by inserting an inner container which in turn is attached to the bottom with a connection, this inner container being additionally supported under pressure by the container, these being connected to the container by gluing or welding, if necessary without connection. The fixation of the rings can be by gluing or welding.

According to an additional embodiment of the invention, a set of specific reinforcement elements may be provided spaced apart to render the container resistant to higher internal pressures. I.h.b. the aforementioned reinforcing elements are obtained by wrapping and / or shrinking the foil around the

BE 2012/0681

2012/0681 keeper. More esp. said reinforcement elements consist of a set of inner support rings which are connected to the holder.

According to an alternative embodiment of this, the above-mentioned reinforcing elements consist of a set of bosses, respectively. reinforcement ribs directly in the material of the bra.

According to a further alternative embodiment of this, the aforementioned reinforcing elements consist of a set of outer support rings, which can advantageously be applied directly during the blowing process of the container.

According to a still further alternative embodiment of this, said outer support rings can be replaced by a mesh and / or a grid and / or a shrink film in which the grid is already incorporated.

According to a specific embodiment thereof, said outer support rings are made of metal, said outer or inner support rings may also be made of plastics.

This invention also relates to a method of manufacturing a pressure retainer package as defined above, wherein the container employed herein is formed by a one-stage process with subsequent cutting of the container to thus obtain a tube, wherein pressure means are provided therein pressurizing the container packaging with the filling product, in particular from atmosphere to approx. 20 bar and more, if necessary up to 100 bar, by gassing. The holder can also be formed by a two-stage process. The holder can be formed directly by injection molding, without cutting. Afterwards it can still be cut.

I.h.b. a flexible inner container or bag can be inserted into the container so that the filling product does not come into contact with the outer wall or with the compressed gas (gases, air, ...), more in particular. wherein a flexible inner container is introduced into the container by blowing.

According to a more special embodiment of the method of the invention, a flexible inner container or bag is introduced into the container in order not to

BE 2012/0681

2012/0681 contact with the outer wall and also not with the compressed gas (gases, air, ...), in particular wherein a flexible inner container is introduced into the container by blowing.

Pressurization herein may be via the lockable bottom valve through an opening which is self-closable by the seal, said seal consisting of a tubular element made of a flexible plastic material; in particular the pressurization herein being effected via the lockable top valve; e.g. via a so-called “umbrella plug” that is self-closing, or via a so-called “Nichelson plug”.

Example

This can easily be tested: pressurize the container, for example with 6 bar on the inside, measure the deformation and add 2.5 bar along the top and also measure the deformation. Then that keeper should be able to withstand that 6 bar, but if the container rises above 2.5 bar, then you may consider that 2.5 bar pressure in the opposite direction to the inner container, so that the pressure that the inner container must withstand whether he really feels that wall is actually only 3.5 bar: 6-2.5 = 3.5.

The main application is that you can make the inner holder lighter. The inner container should no longer withstand 6 bar, the walls may be thinner because it should only hold 3.5 bar. This gives an extra advantage of the double holder by applying Pascal's law where an effect is obtained that you have to withstand a small pressure for one of those two holders, which may then be useful in certain applications. So it is in principle less mechanically loaded. Then we can also make that container lighter. And that is an important advantage, so that we can make a lighter product thanks to the back pressure we create in this. In this example, the inner container has served as a pressure vessel, whereby the inner bottle under pressure actually protects the outer bottle, and acts as a counter-container, in other words: The container rejects a negative pressure on the base container, so with a reduced pressure for that one, namely, the double container with less pressure for the second keeper thanks to the other keeper.

The bottle in bottle is one chamber with the inner bottle serving as extra reinforcement of the outer bottle. So we are going to put an inner container under pressure, via a pressure regulator, they are two different pressures that we are now controlling, with the creation of a

BE 2012/0681

2012/0681 pressure gradient ΔΡ, the difference between the inner holder and the holder, that has a certain pressure difference, a ΔΡ. And by means of that ΔΡ we can make the inner container lighter. That is the application of Pascal's Law.

Further details and features of the invention are defined in further subclaims.

Further details are explained in more detail below in some embodiments of the invention with reference to the accompanying drawings. Herein, the same reference characters refer to the same or analogous elements.

Figures 1 et seq. Each represent an embodiment of a container according to the invention, each with variants in different views, full and / or partial.

In general, this invention relates to a pressure container, which functions as packaging, with a top, a middle and a foot part, the top part of which is provided with an opening through which the pressure container can be filled, and in which a valve or valve can be accommodated, and.

The base part forms a loose part that is placed at the bottom of the holder, while it is provided with a valve to pressurize the holder. For example, the central part shows. a cylindrical or prismatic profile.

This invention also relates to a pressure-packed multi-chamber system consisting of a container of plastic, for example PET formed by one-stage or two-stage process 1 or a container formed by one-stage or two-stage process with subsequent cutting of the container to also obtain a tube. Either container T formed by the extrusion process.

This is closed at the bottom by a bottom 2 which is attached to container 1 by means of a connection 13. The joint 13 can be obtained by gluing, seaming or welding. Or is it closed at the bottom by sealing lid bottom 18. At the top, the container 1 is closed with a lid 5, this lid can be a metering valve 17 or a screw cap or other valves.

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The aim is to pressurize the packaging with the filling product, to gas it out

o.a. happens via

i) the lockable top valve 17 ii) the lockable bottom valve via opening 3 self-closing by the seal 4, the seal 4 being a tube of a flexible plastic material.

iii) the self-lockable “umbrella-plug” 6 (a purchase part).

iv) the two-stage “Nichelson plug” 7 (ditto, a purchase part).

In order for the container 1 or T to withstand high internal pressures, the invention consists of reinforcing this container in various ways:

a) by means of inner support rings 8 and 8 'which are spaced apart and which are connected to the container by eg gluing or welding. The distance between 8 and 8 'and the amount of support rings to be placed depends on the desired container strength.

b) Thickened or reinforcing ribs 9 and 9 'directly in the material of the container 1. The distance between 9 and 9' and the quantity to be placed depends on the desired container strength.

c) By means of outer support rings 10 and 10 'which are spaced apart and which are connected to the container by eg gluing or welding or simply without connection. The distance between 10 and 10 'and the amount of support rings to be placed depends on the desired container strength. It is possible to arrange these outer support rings 10 directly during the blowing process of the container. The invention is not only limited to these drawn outer support rings, but can also be a mesh or a grid. The materials of these support rings can be both metals and plastics.

d) By inserting an inner container 14 which in turn is attached to bottom 2 with a connection. The connection 15 can be glued, folded or welded. This inner container 14 under internal pressure is then additionally supported by container 1.

If the container 1 has been produced by the extrusion process, the top is closed with a container head 11 which is attached to container 1 by means of a connection 12. The connection 12 can be glued, folded or welded.

The container head 11 can then in turn be closed with a lid 5, being a dosing valve 17 or a screw cap or other valve.

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In order not to allow a filling product to come into contact with the outer wall and also with the compressed gas (gases, air, ...), a flexible inner container 16 is introduced into the container, e.g. by blowing.

With atmospheric packaging and / or pressure packaging, the container can be closed with sealing lid bottom 18 and may or may not be pressurized according to the above-described methods.

Here one speaks of 1-room system.

Two chamber systems are shown in Fig. 12 where container 1 is closed at the bottom according to the methods described above and the 2 chambers are obtained by arranging a chamber partition 19 in the container.

The chamber separation 19 may or may not be provided with a pressure control valve 20, which may also be a closure which can be opened from the outside so that the contents of chamber 21 can come into contact with chamber 22. The chambers are under pressure or not.

A limited number of rooms can be created by arranging different room dividers. In the different chambers, the filling product can consist of liquid, powder or gas. The rooms may or may not be under pressure.

Retainer package 30 is with one end opening, so not cut at the bottom, and characterized in that it consists of a plastic, especially modified PET, so that it can withstand high (er) pressures. The bottom at the bottom is executed according to the well-known “petaloid” principle.

Retainer package 23 is with 1 end opening, so not cut at the bottom, and characterized in that it is made of a plastic such as e.g. modified PET exists so that it can withstand high (er) pressure and / or higher temperature. The bottom at the bottom is practically flat, but slightly curved inwards.

Retainer package 24 with one end opening, so not cut at the bottom, characterized in that it consists of a plastic, in particular modified PET, so that it can withstand high (er) pressures. The bottom at the bottom is designed as a sphere because this geometry can withstand more pressure in the container. This version requires one

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2012/0681 base-cup 25 that allows the packaging to remain upright. The base cup 25 is attached to the holder by gluing or welding.

Retainer package 24 is not necessarily cylindrical in shape but may also take other shapes such as, for example, triangle prismatic with rounded corners.

Retainer package 26 is characterized in that it is manufactured according to the 3-step process: first preform injection molding, then inflate preform into a bottle and then cut. At the bottom, the container is closed by a full lid 28 which is attached to the container by gluing or welding.

Retainer package 29 of a PET material where an inner retainer 30 is inserted through the opening at the bottom of the outer retainer 29 created by cutting. The inner container 30 is not necessarily of the same material as the outer container 29 and may have a shape that is not necessarily cylindrical. The bottom opening of the outer container 29 is closed via a lid or base cup 25 'which is attached to the container by gluing or welding. At the top, the inner container 30 is closed with a valve 5 '. The wall of the inner container 30 is supported by the outer container at a higher inner pressure, so that the container packaging per se is more resistant to higher pressures, for instance up to 20 bar.

Retainer package 29 'is a variant of the outer container 29 in which the valve 5' is integrated in the container container and can therefore no longer be disassembled, shielded from the outside and as extra security for retaining the valve through the inner wall of the outer container 29 '.

Retainer packaging 29 is a further variant of the outer container 29, characterized in that the outer container is cut off 2x: at the top and bottom.

Retainer package 30 is with one end opening, so not cut at the bottom, and characterized in that it consists of a plastic, especially modified PET, so that it can withstand high (er) pressures.

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Claims (38)

CONCLUSIONS 1. Container for packaging of continuum filler under pressure, especially (semi) liquid, in particular fluids, characterized in that it consists of a plastic polymer container comprising at least one end opening, in particular two, on top and bottom side of a jacket forming the body of the container, the bottom side of which is closed by a separately added bottom (2) attached to the jacket of the container (1) by means of a connection (13 ) and which is closed at the top with a valve (5), more especially characterized in that there is provided an inner holder (14) which is attached to the bottom (2) of the holder (1), this inner holder (14) being additionally supported by the holder (1) under internal pressure. 2. Retainer for packaging of continuum filler, especially liquid, if necessary semi-liquid, in particular fluids, characterized in that the inner container (14) is subjected to its own pressure, in particular which is different from the one to which the outer retainer (1) is subject, more especially wherein the inner container, which is completely enclosed in the outer container, is placed under a higher pressure and the outer container under a lower pressure, wherein at least one of the two aforementioned pressures -i.h.b. all be higher than atmospheric pressure, and the residual pressure on the inner container is equal to the difference between the high pressure of the inner container minus the lower back pressure of the outer container. A container according to claim 1, characterized in that the inner container (14) is subjected to its own pressure, especially which is different from the one to which the outer retainer (1) is subject, more especially wherein the inner container, which is completely enclosed in the outer container, is placed under a higher pressure and the outer container under a lower pressure, wherein at least one of the two aforementioned pressures -i.h.b. all be higher than atmospheric pressure, and the residual pressure on the inner container is equal to the difference between the high pressure of the inner container minus the lower back pressure of the outer container. Pressure container according to either of the preceding claims, characterized in that the inner container has a thinner wall than the standard value to withstand the aforementioned higher pressure, and is thus made lighter. BE 2012/0681 2012/0681 Pressure container according to one of the preceding claims, characterized in that the pressure package is formed by a multi-chamber system consisting of at least one chamber, in particular. two, the pressure container (1) being closed at the bottom and a chamber partition (19) provided between the various chambers in the container. Pressure retainer according to the preceding claim, characterized in that the chamber partition (19) is provided with at least one pressure control valve (20), respectively. gassing valve as closure. Pressure retainer according to the preceding claim, characterized in that said closure is indirectly adjustable from the outside in an open or closed position by means of pressure control valve (20) so that the contents of the chamber (21) can come into contact with chamber (22), the chambers being under pressure or not. Pressure retainer according to the preceding claim, characterized in that both bottom and top sides are closed by means of the same closing piece, in particular a valve (18). Pressure container according to the preceding claim, characterized in that this valve consists of a metering valve (17) or a screw cap or .. Pressure container according to the preceding claims, characterized in that the inner container (14) is connected to the container (1) on its bottom (2), if necessary by gluing or welding. Pressure container according to one of the preceding claims, characterized in that a valve is included in the added bottom (2). Pressure container according to any one of the preceding claims, characterized by a package under pressure going up to about 20 bar, in particular. at a temperature T of approx. s 55 ° C. Pressure container according to one of the preceding claims, characterized in that said plastic consists of PET (polyethylene terephthalate). Pressure container according to the previous claim, characterized in that it consists of other plastics such as polyolefins, polyesters, PETG, PBT, ... Pressure container according to any one of claims 1 to 12, characterized in that said plastic consists of a polymer bio-aggregate, in particular PETG with incorporated spores. BE 2012/0681 2012/0681 Pressure retainer according to any one of the preceding claims, characterized in that the connection (13) consists of a glue, flare or weld connection, Pressure container according to one of the preceding claims, characterized in that it (23) has an end opening and is not cut at the bottom, and in that it is made of such a plastic, in particular. modified PET, it is resistant to high (er) pressure and / or higher temperature, with the bottom at the bottom being almost flat but slightly more inwardly bent. Pressure retainer according to the preceding claim, characterized in that it (24) is provided with a bottom which is formed as a ball at the bottom in order to resist even more pressure in the retainer, wherein a base cup (25) is provided due to the vertical position which is attached to the holder. Pressure container according to any one of claims 1 to 15, characterized in that it (26) is closed at the bottom by a full lid (28) which is attached to the container by glue or weld connection. Pressure retainer according to any one of claims 6 to 19, characterized in that the welded connection (13) consists of a laser, induction or resp. ultrasonic connection exists. Pressure container according to one of the preceding claims, characterized in that a set of reinforcing elements (a, b) are provided which are spaced apart on the inside and / or outside of the pressure container (1) or (1 ') make it resistant to high internal pressures. Pressure retainer according to the preceding claim, characterized in that said reinforcing elements (b) consist of a set of bosses or brackets. reinforcement ribs (9) and (9 ") directly into the material of the pressure retainer (1). Pressure container according to either of the preceding claims, characterized in that said reinforcing elements (a) consist of a pair of inner support rings (8) and (8 ') connected to the pressure container. Pressure retainer according to any one of claims 21 to 23, characterized in that said reinforcing elements (b) consist of a pair of outer support rings (10) and (10 '). BE 2012/0681 2012/0681 Pressure retainer according to the preceding claim, characterized in that said reinforcing elements are obtained by means of wrapping and / or shrinking the foil around the pressure retainer. Pressure retainer according to either of the preceding claims, characterized in that said reinforcing elements (b) (10) are formed by a mesh and / or a grid and / or a shrink film in which the grid is already incorporated. Pressure retainer according to any one of claims 15 to 17, characterized in that said outer or inner support rings (a, b) are made of plastics. Pressure retainer according to any of the 3 preceding claims, characterized in that said outer support rings (b) are made of metal. Method according to any one of claims 29 to 31, characterized in that the production process of the pressure vessel proceeds as follows: in a first step (A), a semi-finished preform is extruded by injection molding, granules of plastic are dried, melted in an extruder, and then driven into an injection mold; in a subsequent step (B) said semi-finished into a bottle shape is blown as an additional intermediate into a blow mold; in a subsequent step (C), the underside of said additional intermediate is cut to a given length, whereby a separately added injection molding base is then incorporated into said additional intermediate; Method according to the previous claim, characterized in that the pressurization therein takes place via the closable bottom valve via opening (3) which is self-closing by the seal (4), the seal (4) consisting of a tube element made of a flexible plastic. Method according to the previous claim, characterized in that the pressurization therein takes place via the lockable top valve (17). A method according to any one of claims 29 to 31, characterized in that the pressurization therein takes place via a self-lockable element, in particular. a so-called “umbrella plug” (6). BE 2012/0681 2012/0681 A method according to any one of claims 29 to 32, characterized in that the pressurization herein takes place via a two-step element, in particular. a so-called two-stage “Nichelson plug” (7). 34. Method for manufacturing a pressure retainer, especially according to any of claims 29 to 33, wherein it is formed by the container (T) formed by the extrusion process. 35. Method for manufacturing a pressure retainer, especially as defined in any one of claims 1 to 29, wherein it is formed by an extruded tube which is at least once, in particular Is cut off twice, whereby both open ends of the jacket thus created are closed by the same piece, valve or lid. Method according to either of the preceding claims, characterized in that the top is closed with a retaining head (11) which is attached to the pressure retainer (1) by means of a connection (12). A method according to any one of claims 29 to 36, characterized in that said compounds are carried out by gluing, seaming or welding, especially laser welding, more in particular by laser, induction or ultrasonic welding, whereby the fixation of the rings is glued or welded. A method according to any one of claims 29 to 37, characterized in that said outer support rings (10) are directly incorporated when blowing the container. BE 2012/0681 2012/0681 Fi «3 Fi «. 6 FQ. 7 BE 2012/0681 2012/0681 Ft ¢ 5. ? 1 ' BE 2012/0681 -472012/0681 Fi <q. 19 FiC Z1 BE 2012/0681 -402012/0681 F i G · Z2. Fl (q. 24- Fîq.Z6 F i C-ι. 21 BE 2012/0681 -492012/0681 P i ή. 28 Fi G. 50 Fi G, 51 Fig. 32 BE 2012/0681 -2 © 2012/0681 F i Q- 56 Fiq. 3? 2012/0681