WO2009030439A2

WO2009030439A2 - Method for the production of quick mineral agglomerates (mbda, micro bubbles distorted agglomerates)

Info

Publication number: WO2009030439A2
Application number: PCT/EP2008/007107
Authority: WO
Inventors: Andreas Noack
Original assignee: Andreas Noack
Priority date: 2007-08-30
Filing date: 2008-08-30
Publication date: 2009-03-12
Also published as: WO2009030439A9; WO2009030439A3; DE102007041231A1

Abstract

The present invention relates to a method for the contaminant-free production of mineral agglomerates, particularly quick structurally viscous agglomerates (QSA). Said agglomerates may be used, among other uses, for nutritional purposes for stabilizing nanoscale trace element types in milling processes and making the same suitable for storage. QSA may also be used to produce oversaturated solutions with a high degree of bioavailability. The invention further relates to a device for supplying corresponding oversaturated solutions in an advantageous fashion.

Description

Process for producing fast mineral agglomerates - MBDA Micro

Bubbles distorted agglomerates)

As the formation of fast-constituting agglomerates in wet milling is a very unwelcome event, it usually leads to processes having to stop and corresponding equipment to be "cleaned." On the other hand, fast and especially pseudoplastic agglomerates (Quick Structure-viscous agglomerates - QSA) at least the theoretical possibility as a kind of "cage builder" eg To immobilize nanoparticles and thus to stabilize or store them.

The problem with this QSA is that its structure is e.g. during a bead mill grinding leads to a sudden increase in viscosity, which changes the flow properties of the grinding medium massively. U. a. Then the introduced mechanical energy in the milling process can then no longer dissipate as planned, which typically leads to massive overheating problems.

For technical applications, it is possible to use known dispersants-as a rule tenside-but this does not apply in the case of applications in the field of foods, medicaments or cosmetics. As agglomerates with target use in the field of dietary supplements especially finely dispersed calcium and magnesium agglomerates are interesting.

The object of the present invention is to provide a process for the production of fast, pseudoplastic agglomerates (QSA) for food and drug applications. The term "fast" is understood here above all that the agglomerate should go into a stable and immobile state at the moment when an external force stops acting.

The basic prerequisite is that the regrind must not be contaminated or contaminated in any way.

These objects are achieved according to the invention with the features of the independent patent claims:

The method according to the invention for the contamination-free production of mineral agglomerates comprises the following steps: a. Submitting an aqueous mineral suspension and grinding the suspension in a milling unit b. Introducing a gas-releasing dispersant precursor into the millbase

The essential point here is that with a correspondingly high Mahlstraaden or high mineral solids content, the time comes typically at which the system begins to form an agglomerate. Normally one would now control the grinding process by adding a dispersing agent and ultimately keeping the fluid properties of the system constant. What applies to technical products, however, can not be applied to products in the field of food or pharmaceuticals, since all the known dispersants would contaminate the product. According to the invention, however, a dispersant precursor is used which itself does not have to have any significant dispersing properties. But the gas bubbles, in particular microscopic gas bubbles (microbubbles), have the decisive dispersing effect in order to keep the process stable. Typically, the gas bubble germs (microbubbles) that form within the agglomerate of the invention alter the flow properties of the paint material.

An essential feature of the system is also that especially in the area in which the grinding energy is introduced into the agglomerate, the gas bubble formation and thus the dispersion effect is particularly supported location-related by the high local energy input and the temperature increase involved. This method is also referred to below as Micro Bubble Distorted Agglomerates (MBDA) method.

It is particularly advantageous if the released gas consists essentially of oxygen, which of course does not contaminate the millbase.

Since H2O2 eventually evaporates without residue and also has food quality, this is to be regarded as a well-suited dispersant - especially in terms of task.

Furthermore, the MBDA method is very well suited to represent agglomerates based nutritiv important alkaline earth and alkali hydroxides.

The use of hydrogen peroxide still has the effect that peroxdic structures stabilize the agglomerate. Preferred dispersants are also alkali metal and / or alkaline earth peroxides, which release oxygen analogously to hydrogen peroxide.

The remaining proportion of peroxidic structures in the agglomerate is typically between 0.01% and 5%, based on the molar content of hydroxide ions, preferably between 0.1% and 3%, particularly preferably between 0.5% and 2%.

Preference is given to using chromates, perchromates and particularly preferably permanganates and manganates, which are unstable in the applied pH range, as peroxidic or O 2 -releasing precursors.

Here, preferred mineral systems are those which have a chromium and / or manganese content between 0.1% and 10%, particularly preferably between 0.5% and 5% - based on the dry mineral matrix. Particular preference is given to converting corresponding mineral systems which have a corresponding proportion of chorm and / or manganese into the required oxidation state via an upstream, strongly oxidizing treatment. This strongly oxidizing pretreatment is typically carried out with water-vapor and / or oxygen-enriched air at temperatures above 800 ^° C., preferably above 1000 ^° C. These are used in the temperature range of strongly oxidizing gases in the volume concentration range of more than 25% up to their pure gases. The corresponding manganese and / or chromium oxidizing treatment is preferably brought about by introducing the pure gas / water vapor into a correspondingly heated furnace, in which the substrate is initially introduced. For nutritive applications, preference is given to using mineral systems of plant origin, in particular ashes having a manganese content of between 0.5 and 5% by weight, based on the mineral mass balance.

Particularly preferably, the combination of chromates and / or manganates / permanganates with the addition of hydrogen peroxide in the milling process is used to optimally control the milling process and at the same time to stabilize the agglomerate obtained therewith.

The agglomerates produced according to the invention typically have a solids content of between 5 and 40% by weight, preferably between 10 and 30%. Long-term stable agglomerates are formed according to the process of the invention if they consist of at least 35%, preferably at least 50, of alkaline earth metal hydroxides. The stability is months, sometimes even years.

This durability is typically reduced by absorption of carbon dioxide. Typically, the molar ratio of the carbonate ions to the total number of anions is at most 10%. The ratio of the carbonate ions to the hydroxide ions is typically at least 1: 100, preferably 1: 250. Preference is therefore given to shielding the agglomerate of carbon dioxide, in particular during storage. For storage, vessels of low CO2 permeation rate are typically used; more preferably, these have a metal / Metallfolienumkleidung.

With the help of the M B DA method, a substance class of novel agglomerates can be produced reproducibly, especially for the foodstuffs sector but also for the cosmetics and pharmaceutical sectors, in particular the substance class of Quick Structurviscous Agglomerates (QSA) based on alkaline earth metal hydroxides.

The substance class of this QSA is characterized by particularly high stability. Intrinsic viscosities remain essentially stable over months. The solubility behavior with respect to acids typically does not change at all over the years. Particularly interesting are these QSA to assist the grinding process of poorly soluble trace elements. On the one hand, they are very fluidizable due to their intrinsic viscosity and in no way hinder the actual grinding process. However, as soon as the QSA, together with embedded crushed trace element and / or ultra-trace element particles, are discharged from the grinding zone, they store the corresponding particle in a cage. They immobilize these and thus prevent correspondingly similar particles from being able to recombine.

Preferred QSA consist essentially of calcium and magnesium hydroxide. The calcium / magnesium ratio can vary between 20: 1 and 1: 6, depending on which impurities are still introduced into the agglomerate. Also advantageous is the doping of the agglomerate according to the invention with iron salts up to a weight fraction based on Fe 2 O 3 of 5%. Hereby, the oxygen evolution of the dispersant can be optimized process-related again. Based on the content of alkaline earth metal hydroxides, up to 60% of potassium hydroxide, up to 30% of sodium hydroxide and silica oxides of up to 40%, based on the dry mass, may be present in the agglomerate for nutritive purposes. It is advantageous to use a proportion by weight of silicon dioxide, in particular also in conjunction with aluminum oxide between 40% and 5%, preferably between 30 and 15% to partially bind for acidity purposes Suren- and ultra trace elements and then this over a period of up to several hours this Release absorption in the intestine. The particle distribution is particularly preferably such that aluminum silicates are larger in relation to non-aluminum-bonded silicon species and therefore have a lower tendency to resorb in the intestine when used for nutritive purposes. Agglomerates according to the invention show a resorption ratio of silicon to aluminum greater than 2, which has the nutritionally-specific advantage of corresponding systems, than to allow trace and ultratrace elements accompanying substantially nonabsorbable adsorbents to pass more uniformly into the blood.

Typically, the silicon content based on the dry matter is between 3% and 40%, preferably between 10 and 25%.

An overview of the composition of the typical main components of agglomerates according to the invention provides the following table:

Min. Value Max. Value Typical value

Ca (OH) 2 15% 95% 88%

Mg (OH) 2 5% 85% 12%

KOH 0% 60% 33%

SiO2 0% 80% 40%

NaOH 0% 30% 3%

The numbers are based on the sum of calcium and magnesium hydroxide. The water content of the agglomerates is typically between 50 and 95%, preferably between 65 and 90%.

For the intrinsic viscosity agglomerates of the invention - based on tau (O) - results in values between 20 and 400 Pa; preferred tau (0) values are between 100 and 30 Pa. Characteristic and advantageous is further that the agglomerates according to the invention thixotropic values based on the rel. Hysteresis area less than 100 Pa / (s * ml), preferably less than 50 Pa / (s ^* ml). The ratio of tau (O) and rel. Hysteresis area is typically greater than 0.5 [s ^* ml]; preferably greater than 1, 5 [s ^* ml] and more preferably greater than 2.5 [s ^* ml]

At least 90% of all particles are smaller than 10 μm; Preferably, 99% of all particles are less than 10 microns and more preferably 99% of the particles are less than 5 microns. Typical grinding energies are between 0.5 and 4 kWh / kg (solids-based), preferably between 1 and 4 kWh / kg. Agitator ball mill with grinding beads between 0.1 and 0.8 mm are used. In special cases, other mills familiar to those skilled in the art, such as colloid mills or ball mills, can be used for this purpose, but they have the disadvantage of higher abrasion of the grinding medium and in particular have lower energy efficiency. Production of nanoscale or bioavailable trace element species using QSA

On the one hand, because of their properties, QSA is on the one hand highly structurally viscous, but on the other hand has only low tixotropy, in order to stabilize high-energy nanoparticles in a milling process as quickly as possible and to prevent the recombination of the split-up particles, and therefore represents a particularly suitable medium in the milling process For the first time ever, it has been possible to produce trace element and ultra trace element nanos and to store them in QSA on a long-term basis.

If you want this release, this can u.a. also silicate-free QSA can be dissolved with organic acids. The corresponding acid-insoluble nanos of poorly soluble metals can be dispersed in solutions and measured.

Ultimately, high volume-based grinding energies can be dissipated via the matrix without having to accept the immobilization of the correspondingly produced nanosets, which would otherwise significantly hinder nano-milling.

It is therefore advantageous to trace element species that are nutritiv interesting, and have the inherently low bioavailabilities in a QSA Martrix to be ground. To this end, iron, zinc, vanadium, molybdenum, chromium, selenium salts, or very generally ashes, in particular plant ashes, are advantageously introduced into the QSA Martix and embedded in it and dispersed or ground with the aid of a high-performance mill.

With the method according to the invention further ultratrace elements such as gold, silver, platinum, indium, germanium, iridium, in particular all catalytically active metals, which can be processed in the ppb / ppm range in the sense of drugs, can be converted into the nanosklaischen state.

applications

Furthermore, QSA can be used to produce highly supersaturated solutions / dispersions. These are nutritive particularly advantageous, because particularly good bioavailable because of oral intake due to the high concentration gradient, which then rests on the body's membranes, high permeation rates can be achieved especially in the corresponding alkaline earth ions, which ultimately leads to a high bioavailability. The more supersaturated the concentrated solution, the better the absorption. Due to the high outer surface of the particulate in the agglomerate alkaline earth metal hydroxides they can be solved very quickly by acids, especially fruit acids quantitatively. The resulting solution is highly supersaturated. If these concentrates according to the invention are introduced into a matrix which retracts the crystallization, then corresponding concentrates can remain stable over a period of up to one hour.

The concentrate then typically contains dissolved amounts well above the solubility limit of the bulk minerals such as, calcium citrate, magnesium citrate, calcium tartrate, magnesium tartrate, and the corresponding magnesium and / or calcium malates, or hydromalates. Corresponding concentrates, in their pure form, as well as doped with nanoscale trace elements, can be used diluted or undiluted for the mineral enrichment of a variety of foods.

A preferred application is to incorporate appropriate concentrates in pasta. Here, the supersaturated in the concentrate, such as nanoscale minerals or trace elements are immobilized and thus protected from the bioavailability reducing recrystallization. Concentrates according to the invention are preferably also introduced into viscose milk products such as yoghurt or quark, which is able to increase the nutritive quality of the food based on diet.

In a preferred form, these can be incorporated into fruit gum matrices. Here, in particular, the nanoscale structure of the introduced trace elements is immobilized by the gelling matrix and thus "stored" in a highly bioavailable state.

Corresponding fruit gum matrices, such as those based on gelatin, agar agar, pectins - in particular apple pectin - harmonize optimally with inventive nanoscale trace and / or ultra trace element concentrates.

Furthermore, you can also enrich the nanoscale trace elements on cereals with the help of appropriate solutions or concentrates. The enrichment of cereal flakes, cornflakes and / or flours is advantageous. The application can be achieved, for example, by spraying. Again, krisatllisationsretadierende substances are added to the sprayed-on concentrate, such as pectins or starch.

The highly supersaturated and provided with nanoscale trace elements solutions are preferably used as a dietary supplement, and / or as a drug. The aim here is to include as appropriate as possible dietary supplements or drugs.

A highly concentrated gel, for example, can be absorbed in a very defined manner via the oral mucosa, but must always be applied in a standardized manner.

Typically, concentrates of the invention are also used to fortify cosmetics, especially skin creams and hair growth tonics. These have the advantage of providing the skin as balanced as possible with bioavailable minerals or trace elements.

However, the combination of the agglomerate according to the invention with the corresponding fruit acid medium is usually very cumbersome. A particular problem here is that due to the viscosity of the non-moving QSA relatively high forces must be entered into a corresponding mixing device, on the other hand, the concentrate but would like to take as quantitative as possible. The whole complex of problems that such an innovative mixing device has to solve is briefly presented here:

The mixing process in the drug application area must be sterile. Also here are very no defined amounts - preferably between 1 and 3 ml - to apply without it may come in normal use large fluctuations in the backing of a corresponding mixing device. The mixing of the components has to be done very evenly in each case. It is also essential that during storage of the loaded as well as the unloaded QSA no CO2 may be taken, which would eventually disintegrate and segregate the QSA.

These problems are from typical separation segment systems, among others. also not to be solved because a dissolved separation segment always obstructs the mixing process, forming a dead zone and thus provides undefined support.

The device according to the invention for homogeneous and contamination-free mixing of QSA systems and in general of viscous systems fulfills the stated requirements.

The device according to the invention has the following essential features on a. two chambers separated by a peeling seal, wherein the sealing seal is composed of at least five layers, these include: i. two symmetrically sealed together to the center plane

Film composites and ii. a middle layer, which arises from the at least partial interlocking of the respective inner layers, and wherein b. a fluid medium hydraulically deflecting the punctiform pressure applied to the chamber in which it is placed, so as to create a tensile force on the film area of the chamber adjacent to the sealing seal which ultimately forms the middle layer consisting of the Teeth of rough, plasitfizierbaren surface layer was prepared, again dissolves.

The big advantage is that you only have to press externally on this device; This opens the connection channel between the chambers, without disturbing or nutritiv concern substances remain. Advantageously, this "film tube" also has the geometry of a stick, which ensures that the sealing length, relative to the length of the device, is small, which ensures that the seal rises over its entire length there are no death zones or attachments.

The advantage here is the use of low density PE film in combination with an aluminum foil. The LDPE film is very easy to plasticize and thus preferably used as an inner layer. On the one hand, the aluminum layer is a permeation prerite for CO2 and water vapor and thus protects the QSA. At the same time, the aluminum foil meets the strength requirement to finally transfer the mechanical pressure on the one chamber to the pealing seal so that it is hydraulically pulled apart. A corresponding stick-shaped device is particularly suitable for intensive mixing / dispersing of lumpy or highly viscous, as pseudoplastic substances, since due to the flexible film structure of the device external forces directly targeted along a very large relative packaging surface on pseudoplastic particles according to their tendency to move more targeted can to disperse them with the least possible mechanical effort.

It is also advantageous to dope the QSA with about 2% carbonate. This partially inflates the stick during the mixing process, when the basic QSA is mixed with the excess acidic gel, which in turn causes the seal to open 100%

Examples

Example 1 An aqueous suspension of 3 l volume with 16% CaO, 6% MgO (200 μm in each case) and 3% KOH was prepared. The suspension was circulated in a bead mill from Drais with grinding bodies in the range between 0.2 and 0.5 mm. The grinding beads were retained by means of a sieve, column width 100 μm in the grinding chamber. After 30 minutes and an energy input of 0.9 kWh / kg, it was visually discernible that the viscosity in the millbase had increased; the pumping capacity of the feeding pump dropped sharply, the system pressure exceeded the maximum value. The mill had to be opened. The grinding chamber was purged of the solid, clogging agglomerate with the aid of 200 ml of water, which was then re-combined with suspension and rinse water. The suspension separated again. The suspension was further ground up to an energy input of 3 kWh / kg without agglomerate forming again. The solid always settled down after switching off the stirring.

Example 2: The suspension (undiluted) according to Ex. 1 was ground to 0.8 kWh / kg (30 min) and then added over a period of 30 minutes with a total of 0.3% H2O2. Gas bubble formation was observed. The forming agglomerate is very easy to pump and stable. The agglomerate was allowed to rest for 120 hours; tau (O) was found to be 87.8 Pa and the viscosity 0.067 Pa ^* s. The rel. Hysteresis area was 28.8 Pa / (s ^* ml).

Example. 3: The suspension (diluted according to Ex. 1) was ground to 1, 0 kWh / kg. H2O2 was added according to Ex. 2. Tau (O) was measured at 63.2 Pa.

Example. 4: 2 kg of the agglomerate shown in Example 3 were ground with 200g in O2 stream at 800 ° C treated wood ash (pre-milling to <0.2 mm); Successively, 800 ml of water were added. With an energy input of 0.3 kWh / kg, the pressure increased significantly; the thickening of the agglomerate was observed. 0.1% H2O2 was added based on the amount of agglomerate. The pressure fell off again. The mean particle diameter was 0.3 μm. tau (O) was 48.2 Pa and the rel. Hysteresefläche to 25.6 Pa / (s * ml) determined. Example 5: 1 g of the agglomerate according to Ex. 4 were mixed with 10 ml of 10% citric acid, the solution was diluted to 200 ml and measured the particle distribution by laser scattering: An average particle diameter of 80 nm was found. Example. 6: From a composite film (inside roughened LDPE film (20 microns), outside AI film (50 microns)) a Doppelkammerstick was produced. The pealing suture was prepared at an applied pressure of 20 kg / cm2 and a sealing temperature below the melting temperature of the PE film at 75 ⁰ C. The dimension of the empty tube in a flat state was I: 100 mm, B: 18 mm; the sealing seam had a base width of 4 mm at the edge and 7 mm in the middle of the stick. 2% K2CO3 was added to the agglomerate from Ex. 4 based on the Ca / Mg (OH) 2 content. The "ausschwitzende" water was removed in vacuo, so that no further condensation occurred within 24 hours.Even 1, 2 ml of the carbonated agglomerate and a gel consisting of water, citric acid (20%) and apple pectin (1%) were in Pressing the two chambers and then sealing the ends of the stick Pressing the thumb and forefinger on one of the two chambers, the center seal is pealed up The components mix with heat and gas, the latter inflating the stick in such a way, that before the kind, how the seal originally opened, always the total opening of the Pealing seal took place.On a rupture aid the stick was then opened and the forming mineral gel was introduced directly into the mouth.The Doppelkammersticks had 10 persons after short instruction tested, whereby the individual retention volume was determined, which was 1, 3% +/- 2.5% When using the non-carbonated Aggl omerats, the retention volume was 3% +/- 9%; As a rule, there was no total opening of the pealing seal. When using 0.5% carbonate, the retention volume was 2.4% +/- 5.2%.

Figure 1: Measurement of the intrinsic viscosity or of tau (O) and the thixotropy or the relative hysteresis surface QSA produced according to the invention; The measurements were carried out with the Physica MCR300 rheometer and the cylindrical geometry CC27 (27 mm diameter).

Claims

claims

1. A process for the contamination-free production of mineral agglomerates, in particular of fast, pseudoplastic agglomerates comprising the following steps: a. Submitting an aqueous mineral suspension and grinding the suspension in a milling unit b. Introducing a gas-releasing dispersant precursor into the millbase.

2. The method according to claim 1, characterized in that the released gas is oxygen.

3. The method according to any one of claims 1 or 2, characterized in that step b. before step a. he follows.

4. The method according to any one of the preceding claims, characterized in that the gas-releasing dispersant precursor is an alkali metal and / or alkaline earth peroxide and / or hydrogen peroxide and / or manganate / permanganate and / or a chromate / perchromat.

5. The method according to any one of the preceding claims, characterized in that the aqueous mineral suspension in addition to water as skin component hautsächlich consists of at least one alkaline earth metal hydroxide.

6. The method according to any one of the preceding claims, characterized in that the weight fraction of the at least one alkaline earth metal hydroxide is based on the suspension between 5% and 40%, preferably between 10% and 30%.

7. The method according to any one of the preceding claims, characterized in that the milling unit is a bead mill.

8. The method according to any one of the preceding claims, characterized in that before and / or during the grinding process one or more trace elements and / or ultra trace elements are added.

9. The method according to any one of the preceding claims, characterized in that in the milling process vegetable ash is added.

10. The method according to any one of the preceding claims, characterized in that additional quantity minerals are added in the milling process.

11.Verfahren according to any one of the preceding claims, characterized in that the hinzudosierten in the milling process trace elements and / or Ultraspurenernernente be up to 10% of the dry mass.

12. Fast, pseudoplastic agglomerate, preparable according to the method claims 1 to 10, characterized in that a. this based on the solids content to at least 50% of calcium, magnesium and potassium ions together with corresponding counterions. b. the ratio of the tau (0) value characterizing the intrinsic viscosity and the relative hysteresis area characterizing the thixotropy is greater than 0.5 [s * ml] c. at least 90% of the particles are smaller than 10μm d. the water content is at least 50%

13. Fast pseudoplastic agglomerate, according to claim 12, characterized in that the ratio of the structural viscosity characterizing tau (0) value and the thixotropy characterizing relative hysteresis area greater than 1, 5 [s ^* ml], preferably greater than 2.5 s ^* ml].

14. Fast pseudoplastic agglomerate, according to claim 12 or 13, characterized in that the counterions are substantially hydroxide ions.

15. Fast pseudoplastic agglomerate, according to one of the preceding claims, characterized in that the molar ratio of peroxide to hydroxide ions between 0.01% and 5%, preferably between 0.1% and 3%, and particularly preferably between 0.5% and 2 % lies.

16. A fast pseudoplastic agglomerate according to any one of the preceding claims, characterized in that the molar ratio of the carbonate ions is at most 10% based on the total number of anions.

17. Fast pseudoplastic agglomerate, according to one of the preceding claims, characterized in that the silicon content based on the dry mass between 3% and 40%, preferably between 10 and 25%.

18. Fast pseudoplastic agglomerate according to one of the preceding claims, characterized in that the thixotropy-characterizing relative hysteresis area is less than 50 [Pa / (s ^* ml)], preferably less than 30 [Pa / (s ^* ml)].

19. Use of the fast pseudoplastic agglomerate according to claims 12 to 18 for the preparation of dietary supplements, in particular, if this is disperse directly before ingestion with fruit acid and or organic acids.

20. Use of the fast pseudoplastic agglomerate according to claim 19, wherein the organic acids consist essentially of citric acid, malic acid, tartaric acid and / or ascorbic acid.

21. Use of the fast pseudoplastic agglomerate according to claims 12 to 10 as a dietary supplement, in particular when this is partially dissolved directly before ingestion with fruit acid-containing media.

22. Use of the fast pseudoplastic agglomerate according to claims 12 to 20 as a dietary supplement, especially if this is partially dissolved directly before ingestion with fruit acid-containing gels.

23. Use of the fast pseudoplastic agglomerate according to claims 12 to 20 for the enrichment of pasta, cereals or dairy products, especially if this is added immediately before further processing, by with organic acids.

24. Use of the fast pseudoplastic agglomerate according to claims 12 to 20 for the enrichment of cosmetics, such as creams or hair restorer, especially when this is added immediately before further processing or application, with organic acids.

25. An apparatus for using the fast pseudoplastic agglomerate according to claims 12 to 22, comprising the following essential features: a. two chambers separated by a peeling seal, the pealing seal being composed of at least five layers, these include: i. in each case two layers sealed together symmetrically with respect to the median plane, each forming a film composite and ii. a middle layer, which results from a meshing of the respective inner layers and wherein b. a fluid medium that hydraulically diverts the punctiform pressure to the chamber in which it is placed so that a tensile force is built up on the foil area of the chamber adjacent to the pealing seal, which ultimately forms the middle layer, the the toothing of the rough, plasitfizierbaren surface layer was prepared, dissolves again.

26. The device according to claim 25, characterized in that the two composite films each consist of at least two individual sheets, wherein the inwardly directed film is plastifiable and extensible, and wherein the outer film is substantially nichtdehnbar.

27. The device according to claim 25 or 26, characterized in that the plastifiable inner film consists of a thermoplastic,

28. Device according to one of the preceding claims, characterized in that the plastifiable inner film on the inside is rough or microporous.

29. Device according to one of the preceding claims, characterized in that the middle layer comprises a range between 10 microns and 5 nm in which the roughness or the porous structures of the plasticizable inner films interlock or are interlocked.

30. Device according to one of the preceding claims, characterized in that the outer, substantially non-stretchable film is an aluminum foil.

31. Device according to one of the preceding claims, characterized in that the composite film is a CO2-impermeable film.

32. Device according to one of the preceding claims, characterized in that the device is a Doppelkammerstick whose ratio of the width of the pealing seal to the length of the stick is less than 1: 4.