EP2920082B1 - Container for outputting an adhesive in the form of a multi-component mixture - Google Patents

Description

The invention relates to a container for dispensing a multicomponent mixture. Such containers are known in the art and may comprise separate chambers for receiving various components that are mixable with each other before or during dispensing from the container to a multi-component mixture. Known containers are generally used for multicomponent cosmetic or pharmaceutical preparations.

For example, shows the US5,647,481 a container assembly for dispensing a multi-component mixture comprising a first mixing container having a receiving space containing a first component and a closable by a cap container opening, wherein the cap in turn has a closable projecting dispensing nozzle. In addition, with the mixing container a second container can be coupled with another component in such a way that both components can be brought into contact with each other and miscible, wherein the resulting multicomponent mixture can be dispensed from the dispensing nozzle. The problem here may be an accumulation of parts of the first component in the region of the dispensing nozzle, so that the mixing ratio of the dispensed multi-component mixture may be variable.

Another example shows the US4,177,938 , the mixing vessel disclosed herein comprises a mixing space containing the first component. The mixing chamber has a dispensing opening which is closed by a screw cap having a dispensing nozzle. The lid in turn has a receiving chamber for a second component, wherein the same can be opened by rotation of the lid so that the second component can be brought into the mixing chamber to the first component. The multicomponent mixture can be dispensed via the dispensing nozzle after mixing said components. Again, parts of the second component may remain in the region of the dispensing nozzle, which could lead to a non-uniform mixing ratio of the multicomponent mixture.

A similar mixing container with a closable by means of a closure cap discharge opening also discloses the DE1646116A1 , Again, a first receiving area for a first component is provided. Another component is provided in a reservoir in the closure cap, wherein the reservoir is openable by the user to bring the second component into the receiving area for mixing with the first component.

Another mixing device shows the DE3606003A1 , Here, a dual-chamber container is disclosed, the inclusion of two before removal from the container to a ready-to-use preparation to be prepared filling components used, consisting of two separately fillable and composable in superimposed container chambers, which are separated by a separating element, the latter can be opened to mix the filling components. In addition, the mouth of the spout of the container has a tube extending into the container interior, whose length extending into the container interior is selected such that it just keeps back the amount of one of the filling components in the container when pouring out the container contents. However, parts of one of the filling components may also remain here, in particular before mixing, which could lead to a non-uniform mixing ratio of the multicomponent mixture.

The document JP 2003 305107 A shows another mixing container. The object of the present invention is therefore to provide an improved container for dispensing an adhesive.

This object is solved by the features of claim 1.

Advantageous embodiments are specified by the subclaims.

The basic idea of the invention is the use of a container for dispensing an adhesive in the form of a multicomponent mixture with a dispensing opening, wherein an interior space is provided which has at least two chambers which are separate from each other and which serve to receive a respective component, wherein means are provided which combine and allow a mixing of the components in the interior, wherein a projecting from the discharge opening into the interior hollow connecting pipe is provided, which provides a connection channel between the interior and output port, wherein the connecting pipe at its opposite the discharge opening side with one of the components before mixing in Contact is and wherein one or more barrier means are provided for the connection pipe to prevent contamination of the connection channel with this component, wherein the or the barrier means for dispensing the multi-component mixtures s is removable or are.

The use of a hollow connecting tube, which protrudes into the interior, which can also act as a mixing chamber of the two components, brings significant benefits. Most of the containers have at their end, ie at the top and at the bottom, dead or dead spaces, in which there contained parts of a component can not be mixed to desirable extent with the or the other components. These dead spaces may be due to the design of the container. For example, flexible containers can be used, in particular with flexible sidewall regions which can be kneaded or deformed for mixing the components, wherein the same containers have a shoulder region with a greater material thickness and a thicker bottom region compared to the sidewall regions can have. These areas are typically not as flexible and kneadable or malleable as the sidewall areas, so portions of one component located there may not be sufficiently blended with the one or more components. In particular, corners, undercuts and narrow sections of the interior can also be located, in particular at the top side of the container facing the dispensing opening, which can also be labeled as damaged or dead space, since defects in the mixing result can also occur here since parts of a component located there are not in sufficient extent with the or the further component are miscible. In addition, the nature and / or the properties of a component can play a further role. In particular, sticky and / or viscous materials may tend to adhere to the interior space surrounding inner walls of a container, which may significantly affect mixing in the area of said top, corners, edges, pegs and / or tapers.

For this purpose, the use of the hollow connecting tube is provided, which protrudes into the interior. On the one hand, a design of a container is conceivable in which a first component is located in the interior in the region of the upper side from the beginning. When mixing the components used with each other within the interior can be avoided by the use of the protruding connecting tube that residues are issued in respect of the discharge opening facing the region of the top over the discharge opening, as the connecting tube protrudes into the interior and an output the discharge opening via the hollow connecting pipe, so the connecting channel takes place. The hollow connecting tube thus enables a communication of used as a mixing chamber interior to the dispensing opening, wherein the hollow inner tube extends beyond the Schad- or dead space in the region of the top of the container.

In an alternative design is initially none of the components in the interior in the region of the top. In this case, this is done only for mixing the components. Again, however, one of the components may flow in the direction of said dead space and not be sufficiently mixed. However, an output of the component or of the mixture present here in the non-predetermined mixing ratio can also be avoided here through the hollow connecting tube.

In order to enable an effective dead space bridging, the sidewall regions surrounding the interior or the side walls are at least partially flexible and / or elastic and the connecting tube preferably protrudes so far into the interior, that contacting the inner surface by manual and thereby customary force on said side wall region the flexible and / or elastic side wall area surrounding the interior is possible with the distal end of the part of the connecting pipe projecting into the interior. For example, a container made of a plastic material such as For example, polyethylene or a polypropylene are used, wherein the wall thickness of said flexible and / or elastic sidewall region is in a range of 0.5mm to 1.2mm, preferably in a range of 0.7 to 0.9mm, for example, 0.8mm is. Preferably, the connecting tube is at a distance of not more than 5 mm from the inner wall of the next side wall region and protrudes at least 2 mm, preferably at least 3 mm from the level of the arranged at the top of the flexible and / or elastic side wall portion into the interior.

A particular advantage of the invention described herein is the use of a barrier means for the hollow connecting tube to prevent contamination of the connecting channel with one of the components and / or a mixture in the non-predetermined mixing ratio, the barrier means being removable for dispensing the multi-component mixture.

This barrier means can be realized by various possibilities and designs. For example, the barrier means can be designed in the form of a sealing pin or a sealing mandrel removably disposed in the hollow connecting tube, the same being preferably removable via the dispensing opening for dispensing the multicomponent mixture. In an alternative embodiment may be used as a barrier means a sealing membrane or sealing surface in particular on the projecting into the mixing chamber part of the connecting tube, which seals the connecting channel, which is openable for dispensing it multi-component mixtures. In addition, the barrier means can be configured in particular by suitably selecting the design of the hollow connecting tube and the components to be mixed. For example, a connecting tube can be used with such a small diameter of the connecting channel with a corresponding viscosity of at least one of the components that, for example, an output of this component via the connecting channel from the discharge opening is not possible. For example, a further component can allow dilution and / or an increase in the flowability of the first-mentioned component, wherein the resulting multicomponent mixture can be dispensed via said connection channel and the dispensing opening. In addition, a gaseous medium that is a gaseous barrier means can be used as the barrier means, which is provided in the connecting channel of the connecting tube and preferably fills the connecting tube. In this case, the dispensing opening is preferably closed, so that the gaseous medium can not escape through the dispensing opening. In addition, the connecting tube can be used with such a small diameter of the connecting channel with appropriate viscosity of at least one of the components, that the gaseous barrier means does not escape from the connecting channel through said component.

Of course, the invention is not limited to multi-component mixtures consisting of two components. Nevertheless, three or more components can be used.

The container can have any shape. For example, the use of bottle-shaped containers is conceivable. Also conceivable container in the form of tubes, tubular bags, cartridges and other suitable and known in the art container shapes. In particular, a film material or a film composite material may be used as the container material, which is preferably matched to the properties of the multicomponent mixture used.

According to the invention the use of such a container for the release of an adhesive is provided as a multi-component mixture, in particular based on an epoxy resin, a urethane resin, or an acrylate resin, also known as a multi-component adhesive or multi-component adhesive. An adhesive should expressly also be understood as meaning an adhesive with sealing properties, that is to say a sealing material. The components contained in the container thereby yield by mixing selbiger the adhesive. Here, the correct mixing ratio can be essential for the properties, in particular the bond strength, the strength, the hardness and / or other characteristics of the adhesive. Accordingly, the container is an adhesive container for dispensing a multi-component adhesive or multicomponent adhesive as a multicomponent mixture.

In particular, a plastic material such as, for example, a polyethylene, a polypropylene or another suitable plastic material or even a composite material, in particular comprising a barrier film or barrier layer, may be used as container material. The same container materials, composites or film composites are well known in the art, the latter are packaging materials, which consist of at least two different materials, which are preferably connected to each other over the entire surface and usually can not be separated by hand. The choice of the film material used depends preferably on the mass contained and to be dispensed in the sachet. In particular, it is conceivable to use a container material or a composite material comprising an ethylene-vinyl alcohol copolymer and / or a silicone oxide and / or a polypropylene and / or a polyethylene.

Foil material produced. This may in particular be a simple plastic or metal foil. As film materials but also composites or film composites are conceivable. The same films, composites or film composites are well known in the art, the latter being packaging materials that consist of at least two different materials, which are preferably connected to each other over the entire surface and usually can not be separated by hand. The choice of the film material used depends preferably on the mass contained and to be dispensed in the sachet.

By way of example, means for merging may be suitable technical means which allow the originally separated components to be merged. such Technical means are well known. For example, separate chambers for the components can be used, wherein a partition wall or a suitable separating element of the chambers to each other, for example by a separate plunger element from the outside can be opened. Also, for example, a relative movement of the chambers to each other cause an opening of the chambers and so a merging of the components. In addition, it is conceivable to provide a membrane or film between the chambers, which can be torn in order to bring the components together. In an advantageous embodiment, at least the sidewall region surrounding the interior space is designed to be flexible, at least in the region of said membrane or membranes, so that the user can, for example by manual pressure from outside on said sidewall regions, allow the membrane to rupture and thus bring the components together.

Means for mixing the components may in particular be said sidewall regions of the container that are designed to be flexible at least in certain areas. Thus, the user can allow in particular by kneading and squishing a mixing of the components. Alternatively or additionally, further mixing means may be provided, such as projections or passages which allow mixing, in particular by means of turbulences which can be achieved during component transport. Such means may for example be designed as static mixers and are well known in the art.

As mentioned above, it has been found to be particularly advantageous to make the connecting tube closed at the dispensing opening and to provide a gaseous barrier means in the connecting channel, the connecting tube or rather the configuration of the connecting tube at its opposite side of the dispensing opening and the viscosity of the first component matched to one another that an exchange of the gaseous barrier means and the first component in the closed state of the connecting tube can be prevented to prevent contamination of the connecting channel with this component, wherein the gaseous barrier means by opening the connecting tube at the discharge port for dispensing the multi-component mixture is removable.

In an advantageous development, the inner diameter of the connecting channel, ie the inner opening diameter, is in a range between 0.8 mm and 2.2 mm, the dynamic viscosity (Brookfield) of the one component at room temperature (23 ° C. (73.4 ° F.)). in a range of 6000 mPas to 80000 mPas to prevent contamination of the connection channel by these components, the barrier means being removable for dispensing the multicomponent mixture.

As mentioned above, it has also proven to be advantageous to provide a barrier means in the form of a projecting into the connecting channel and removable via the output opening sealing pin, which allows a seal of the connecting channel at least in the interior projecting part. Thus, the sealing pin, for example, have an end, in the assembled state pointing in the direction of the interior sealing region, which completely seals the connecting channel with respect to the interior. For this purpose, for example, the shape of the sealing pin can be configured complementary or corresponding to the cross-sectional area of the connecting channel in this area. Additionally or alternatively, the sealing pin can have a sealing shoulder or a sealing lip, in particular in this area.

Another advantage is the use of a dispensing closure means which includes the sealing pin so that the sealing pin is removable together with the closure means to allow dispensing of the multicomponent mixture through the dispensing opening. The closure means can be designed as a cap or lid. Preferably, it completely covers the dispensing opening and provides protection of the dispensing opening from external influences. It is also conceivable the use of connecting means between closure means and container. For example, a thread may be provided, snap-fit means between said components or other suitable connection means. A further advantage is the use of an opening-opening safety device, so that the user can be quickly identified that it is an unopened packaging.

In an advantageous embodiment of the present invention, the sealing pin fills the connecting channel at least partially. By a at least partially corresponding to the cross-sectional shape of the connecting channel shape of the sealing pin, a particularly good sealing of the connecting channel can be achieved.

Another advantage is a design of the sealing pin such that the sealing pin in the mounted state is flush with the lying in the interior end of the connecting channel. Alternatively, a sealing pin may be used, which is longer than the connecting channel, that it projects at least partially into the interior of the connecting channel.

In an advantageous development, the sealing pin has at least at its distal end or at least in the region of the distal end a form corresponding to the cross-sectional shape of the connecting channel shape, that the connecting channel is at least partially closed at the projecting towards the mixing chamber area by this distal end of the sealing pin.

Another advantage is the use of a sealing pin, which is longer than the connecting channel and projects at least partially into the interior of the connecting channel. In this way can be particularly well ensured that a described unwanted contamination of the connecting channel is prevented by one of the components.

As an alternative to the use of a sealing pin or a gaseous barrier means, as mentioned above, it may prove expedient to use a sealing membrane as the barrier means, which is provided on the part of the connecting tube protruding into the mixing chamber and seals the connecting tube or the connecting channel there and which for dispensing it is openable multi-component mixture. Preferably, the connecting tube is made of a plastic material, wherein the membrane preferably consists of the same material and is preferably formed on the connecting tube.

In an advantageous development, the membrane can be opened by applying pressure to the container. Here, it has been found to be particularly advantageous that the container is at least partially or partially designed to be flexible, in particular in the region surrounding the interior sidewall regions to allow at least partially deformation of the container by pressure from the outside. In this way, a pressure effect on said membrane will be made possible to selbige to open the multi-component mixture. Alternatively, a piercing means in the form of a dome can be provided, with which said membrane can be pierced and thus opened, in particular, from the direction of the dispensing opening.

A further advantage for all described barrier means used is the use of a connecting tube which, at least on the part protruding into the interior, has a circular cross-section at least in regions, the diameter being in the range from 0.8 mm to 2.2 mm.

Furthermore, it has been found to be advantageous to select or adjust said one component in such a way that its dynamic viscosity (Brookfield) of the one component at room temperature (23 ° C. (73.4 ° F.)) lies in a range from 6000 mPas to 80,000 mPas ,

Another advantage is the use of another component which has a dynamic viscosity which is lower at room temperature (23 ° C (73.4 ° F)) than the dynamic viscosity (Brookfield) at room temperature (23 ° C (73.4 ° F)). ) of the above one component, the latter preferably in contact with the connecting tube prior to mixing.

It is particularly advantageous to use or to select and / or select the components in such a way that the multicomponent mixture formed by mixing the components has a lower dynamic viscosity (Brookfield) at room temperature (23 ° C. (73.4 ° F.) than the one component). which is in contact with the connecting tube before mixing.

Another advantage is the subdivision of the interior by means of at least one separable seam or separable membrane in different chambers, which serve to accommodate a respective component. Preferably, two chambers are used for two components, wherein both chambers are separated from each other by said seam or membrane. The use of a seam or membrane in conjunction with a container has proven to be particularly advantageous, which in turn consists of a film material, in particular on its side wall regions surrounding the interior. In this case, the seam or membrane can be welded into the film material. Here, it has been found to be particularly advantageous that the container is at least partially or partially designed to be flexible, in particular in the region surrounding the interior sidewall regions to allow at least partially deformation of the container by pressure from the outside. This allows pressure to be applied to said membrane to open the same for merging and mixing the components.

Another advantage is the equipment of the container with a side wall portion which is designed in some areas so flexible that issued in particular by manual pressure on said side wall area by the user, the multi-component mixture and / or the components can be mixed together.

In an advantageous embodiment of the invention, insulation elements are provided on the side wall regions and in particular on flexibly designed side wall regions which are preferably used, for example in order to be able to process reactive multicomponent mixtures which, for example, react exothermically under mixing in the container.

• Figur 1 eine geschnittene Seitenansicht eines erfindungsgemäßen Behälters,
• Figur 2 eine geschnittene Seitenansicht des Behälters aus Figur 1 während des Zusammenführens der Komponenten,
• Figur 3 eine geschnittene Seitenansicht des Behälters aus Figur 1 nach dem Mischen der Komponenten bei dem entfernen eines Barrieremittels,
• Figur 4 eine geschnittene Seitenansicht des Behälters aus Figur 1 bei der Ausgabe eines Mehrkomponentengemisches,
• Figur 5 ein Detail A der Oberseite des Behälters aus Figur 1.
• Figur 6 ein Detail A einer alternativen Gestaltung des Oberseite des Behälters aus Figur 1,
• Figur 7 ein Detail A einer weiteren alternativen Gestaltung der Oberseite des Behälters aus Figur 1,
• Figur 8 ein Detail A einer dritten alternativen Gestaltung der Oberseite des Behälters aus Figur 1,

Preferred embodiments of the present invention are indicated by the figures. It shows

• FIG. 1 a sectional side view of a container according to the invention,
• FIG. 2 a sectional side view of the container FIG. 1 during the merging of the components,
• FIG. 3 a sectional side view of the container FIG. 1 after mixing the components in removing a barrier agent,
• FIG. 4 a sectional side view of the container FIG. 1 when dispensing a multicomponent mixture,
• FIG. 5 a detail A of the top of the container FIG. 1 ,
• FIG. 6 a detail A of an alternative design of the top of the container FIG. 1 .
• FIG. 7 a detail A of a further alternative design of the top of the container FIG. 1 .
• FIG. 8 a detail A of a third alternative design of the top of the container FIG. 1 .

FIG. 1 1 shows a cross-sectional side view of a container 1 according to the invention for dispensing a multicomponent mixture 14. The container 1 in the embodiment shown is an adhesive container for dispensing a multicomponent adhesive as a multicomponent mixture 14, in particular based on an epoxy resin, a urethane resin, or an acrylate resin. It is a flexible container 1 is used, which can be deformed by a user 16 at least partially. The container 1 is designed tube-shaped and has an interior space 2, which is surrounded or surrounded by a side wall region 3 of a plastic material substantially. At an underside 5 of the container 1 is closed by a fold 7. For this purpose, the opposite parts of the side wall portion 3 have been welded together after the rear filling of the container 1. On the upper side 4 opposite the lower side 5, the container 1 has a shoulder region 8 and a centrally arranged connecting tube 19 projecting from the shoulder region 8, which defines a discharge opening 6 for dispensing the multicomponent mixture 14 with a tube outer edge 22.

The connecting tube 19 also projects in the opposite direction from the shoulder region 8 into the interior 2 of the container 1. In this case, the connecting tube 19 is hollow, more precisely designed in the form of a hollow cylinder and defines with an inner wall 21 a connecting channel 23, which allows communication of the inner space 2 with the discharge opening 6 for dispensing the multi-component mixture 14. The diameter of the connecting tube 19 is preferably in a range of 0.8 mm to 2.2 mm, in the embodiment shown at about 1.2 mm.

The interior 2 is further divided into two chambers. A first chamber 9 is provided for receiving a first component 12, here for example an epoxy resin, for the multicomponent mixture 14. In the exemplary embodiment shown, the first chamber 9 is defined in the direction of the upper side 4 in particular by the shoulder region 8 and laterally by the side wall region 3. The protruding into the interior 2 connecting pipe 19 thus protrudes simultaneously into the first chamber 9, so that in the first chamber 9 located first component 12 is in communication with the connecting pipe 19. The first component has a dynamic viscosity (Brookfield) at room temperature (23 ° C (73.4 ° F)) in a range of preferably 6000 mPas to 80,000 mPas, in the embodiment shown at 20,000 mPas.

In order to avoid wetting and in particular contamination of the connecting channel 23 with a part of the first component 12, a sealing pin 26 is provided which is located within the hollow connecting tube 19, ie in the connecting channel 23 and there as a barrier means the connecting channel 23 in particular in the interior 2 protruding part of the connecting pipe 19 seals. The sealing pin 26 is formed on a closure 24, which serves as a closure possibility of the discharge opening 6. For this purpose, connection means can be provided in particular between closure 24 and protruding part of connecting tube 19. Conceivable here is in particular a screw, suitable snap connection means or other types of fastening known in the art, which allow a releasable attachment of the closure 24 on or on the connecting pipe 19. To remove the closure 24 from the container 1 to remove the sealing pin 26 and release the dispensing opening 6, the closure 24 has a handle member 25 for the user 16, which may be provided with anti-slip means such as ribs or nubs. The sealing pin 26 is dimensioned and shaped in such a way that, in particular, it has a shape corresponding to the cross-sectional shape of the connecting channel 23 in the region of the distal end 28, that is to say in the region of the end pointing in the mounted state in the direction of the inner space 2, that the connecting channel 23 can be closed by the distal end of the sealing pin 26 on the area projecting towards the interior 2. In the illustrated embodiment, the sealing pin is cylindrical, wherein the lateral surface is provided by a sealing pin outer wall 27, which conforms to the connecting channel 23 defining the inner wall 21 of the hollow cylindrical connecting pipe 19 so seals the connecting channel 23. In the assembled state, the distal end 28 of the sealing pin 26 is flush with the inner tube 2 located in the inner tube 2 from 20. Nevertheless, it is possible for the distal end 28 of the sealing pin 26 to project beyond the inner pipe edge 20 into the inner space 2.

Furthermore, a second chamber 10 is provided for receiving a second component 13, here for example a hardener for the above-mentioned epoxy resin, for the multicomponent mixture 14. The further component 13 has a lower dynamic viscosity (Brookfield) at room temperature (23 ° C. (73.4 ° F.)) than the dynamic viscosity (Brookfield) at room temperature (23 ° C. (73.4 ° F.)) of the first component 12 In addition, it may be advantageous to match the two components 12, 13 such that the dynamic viscosity (Brookfield) at room temperature (23 ° C. (73.4 ° F.)) of the multicomponent mixture 14 resulting from the mixing is lower than the dynamic one Viscosity (Brookfield) at room temperature (23 ° C (73.4 ° F)) of the first component 12. In the illustrated embodiment, the second chamber 10 is defined in the direction of the bottom 5 by the fold 7 and laterally through the side wall portion 3. In the direction of top 4 is the second chamber 10 from the first chamber 9 separated and sealed by a membrane 11, so that the two components 12, 13 are separated from each other in the interior 2 vorratsbar. The membrane 11 has been provided by welding opposite regions of the side wall region 3, wherein in the embodiment shown, the membrane 11 is designed such that it can be torn open and opened by the user 16, in particular by deformation of the side wall region 3.

FIG. 2 shows a sectional side view of the container 1 from FIG. 1 during the merging of the components 12, 13. For this purpose, the user 16, for example, with a thumb 17 and an index finger 18 of a hand exerted a force on the side wall portion 3, so for example pressed two opposite areas of the side wall portion 3 against each other. As a result, the membrane 11 has been opened between the first chamber 9 and the second chamber 10, so that a combination of the two components 12, 13 can be made possible. The tearable or openable membrane 11 thus constitutes a means by whose tearing or opening a merging of said components can be made possible. The interior space 2 now acts as a mixing space for the two components 12, 13 in order to obtain the desired multicomponent mixture 14. In particular, by further pressing or kneading, made possible by the at least partially flexible sidewall region 3, the user can perform such a material displacement in the interior 2 of the container 1, that a mixing of the components 12, 13 can be achieved with each other.

FIG. 3 shows a sectional side view of the container 1 from FIG. 1 after mixing the components 12, 13 during the removal of the closure 24 with the barrier means 24 formed as a sealing pin 26 formed on the closure. In the interior 2 is the multi-component mixture 14 mixed by the user 16. However, a small area adjoining the shoulder area 8, a so-called dead space 15 or dead space, which still contains residues of the first component 12, can be seen. In particular, in narrow areas or in corners of the same material residues can be found, which is the user 16, for example, whether a stiff design of the shoulder region 8 is unable to mix sufficiently. In order to avoid an output of the part of the unmixed first component 12 which is located near the shoulder region 8 and thus close to the dispensing opening 6, the connecting tube 19 protrudes into the interior 2 in regions. It may be provided to calculate the amount of first component 12 and / or to adjust the mixing ratio in such a way and / or in particular to design the shoulder region 8 such that a remainder of the first component 12 located there can be handled and the quality of the Multi-component mixture 14 has little or no influence.

To output the multicomponent mixture 14 located there, the user grips the grip element 25 of the closure 24, for example, with the index finger 18 and the thumb 17 of his hand and removes the closure 24 from the container 1. This not only the Release opening 6 is released, but also the integrally formed on the closure 24 sealing pin 26 is pulled out of the connecting pipe 19, so that the connecting channel 23 is released to output the multi-component mixture 14 from the discharge opening 6.

FIG. 4 shows a sectional side view of the container FIG. 1 when dispensing a multicomponent mixture. For this purpose, the user presses 16 on the flexible side wall portion 3 and presses the multicomponent mixture 14 through the connecting channel 23 of the connecting pipe 19 from the discharge opening 6 on a substrate 37. By projecting into the interior 2 part of the connecting pipe 19, an output of the dead space 15 remaining first component 12 are largely prevented.

FIG. 5 shows an alternative design of a detail A of the connecting pipe 19 and adjacent areas on the upper side 4 of the container 1 from FIG. 1 , The remaining features of the container 1 are the FIGS. 1 to 4 and the associated description. Again, the sealing pin 26 is integrally formed on the closure 24. The closure 24 again has, on its underside facing the container 1 in the assembled state, a groove or a clearance 31 defined by a circumferential projection 30. In this free space 31, the region of the connecting tube 19 protruding at the top 4 and the discharge opening 6 sealed by the closure 24 are located. For fastening the closure 24, the connecting tube has an external thread 32 in this region and the closure 24 in the region of the overhang 30 a corresponding internal thread 33.

Again, the sealing pin 26 is used as a barrier means, which allows a sealing of the connecting channel 23 in the interior 2 protruding part, wherein the sealing pin 26 as described above, together with the closure 24 via the discharge opening 6 is removable. The sealing pin 26 has for this purpose at its distal end 28 on a sealing portion 29, which fills the connecting channel 23 in this area and thus seals. The sealing portion 29 terminates flush with the lying in the interior 2 end of the connecting channel 19, so the pipe inner edge 20 from. Alternatively, however, the sealing pin 26 can also be designed to be longer than the connecting channel 23, in such a way that the sealing pin 26 in particular protrudes with its sealing portion 29 partially into the interior 2 of the connecting channel 23.

FIG. 6 shows a further alternative design of a detail A of the connecting pipe 19 and adjacent areas on the upper side 4 of the container 1 from FIG. 1 , The remaining features of the container 1 are the FIGS. 1 to 4 and the associated description. Here, the connecting pipe 19 is preferably closed at the discharge opening 6 by a closure 24, wherein in the connecting channel 23, a gaseous barrier means 38 is provided, the connecting pipe 19, in particular the diameter and / or the cross section of the connecting pipe 19 at its opposite the discharge opening 19 Page and the viscosity of the first component 12 are selected to be coordinated with one another such that an exchange of the gaseous barrier means 38 and the first component 12 in the closed state of the connecting tube 19 can be prevented in order to prevent contamination of the connecting channel 23 with this component 12, wherein the gaseous Barrier means 38 can be removed by opening the connecting pipe 19 at the discharge opening 6 for dispensing the multi-component mixture 14.

In the illustrated embodiment, the inner diameter of the connecting channel 23, ie the inner opening diameter at least at its opposite the discharge port 19 side in a range of 1.2mm wherein the dynamic viscosity (Brookfield) of a component 12 at room temperature (23 ° C (73.4 ° F)) is at 20,000 mPas to prevent contamination of the connection channel 23 by this component 12. The further component 13 also has a lower dynamic viscosity (Brookfield) at room temperature (23 ° C. (73.4 ° F.)) than the first component 12. Furthermore, the two components 12, 13 are matched to one another such that the dynamic viscosity ( Brookfield) at room temperature (23 ° C (73.4 ° F)) of the multicomponent mixture 14 resulting from the mixing of components 12, 13 is lower than the dynamic viscosity (Brookfield) at room temperature (23 ° C (73.4 ° F)) of the first Component 12, which is in contact with the connecting tube (19) before mixing.

The gaseous barrier means 38 is air in the present case. In this case, of course, a discharge opening 6 that is hermetically sealed by a closure 24 is particularly advantageous. When filling the container 1, for example via its in FIG. 1 shown bottom 5 before closing by means of the fold 7, the first component 12 passes into the first chamber 9 of the interior 2, in which also the connecting tube 19 protrudes. During the filling, the dispensing opening 6 is preferably already closed by means of the closure 24. During filling, the air in the first chamber 9 escapes at the bottom. However, the filled-in first component 12 is preferably so viscous that the air contained in the connecting channel 23 is enclosed by the first component 9. Only after the mixing of the components 12, 13 and the receipt of the multicomponent mixture 14 and after the closure 24 has been released and the dispensing opening 6 has been released can the gaseous barrier means 38 located in the connection channel 23 escape to the container 1 via the dispensing opening 6, in particular by manual pressure action described above and the multicomponent mixture 14 is output. Conceivable is such a seal as mentioned above by means of air as a gaseous barrier means 38, on the other hand, a protective gas or other gaseous medium prove to be advantageous, the former may be particularly advantageous in a reactive component 12.

FIG. 7 shows a further alternative design of a detail A of the connecting pipe 19 and adjacent areas on the upper side 4 of the container 1 from FIG. 1 , The rest of the container 1 relevant features are the FIGS. 1 to 4 and the associated description. Again, the discharge opening 6 is closed by means of a removable closure 24. In the embodiment shown, however, a barrier membrane 34 provided on the part of the connecting tube 19 projecting into the interior 2 is used as the barrier means, which seals the connecting tube 19 and the connecting channel 23 and which can be opened to dispense it with multicomponent mixture 14. In the exemplary embodiment shown, the sealing membrane 34 can be opened by applying pressure to the container 1. For this purpose, in particular the sidewall region 3 is designed to be flexible at least in some areas, in such a way that the user can exert pressure on the multicomponent mixture 14 obtained in the interior 2 and in the interior 2 stored by the mixing of the components. Of course, this is the output opening 6 at least partially open and preferably the closure 24 to remove completely. As a result of this pressure which can be built up in the interior 2, tearing of the sealing membrane 34 can be achieved in order to dispense the multicomponent mixture 14 out of the dispensing opening 6 through the connecting channel 23.

FIG. 8 shows a further alternative design of a detail A of the connecting pipe 19 and adjacent areas on the upper side 4 of the container 1 from FIG. 1 , The remaining features of the container 1 are the FIGS. 1 to 4 and the associated description. Also comes as a barrier means on a projecting into the interior 2 part of the connecting pipe 19 provided sealing membrane 34 is used, which seals the connecting pipe 19 and the connecting channel 23 and which can be opened to issue it multi-component mixture 14. To open the sealing membrane 34 is a formed on the closure 24 and in the connecting channel 23 in the direction of the sealing membrane 34 projecting piercing element 35 is used. The piercing element 35 has, on its side facing the sealing membrane 34, a last-mentioned, slightly spaced tip 36. The closure 24 is similar to the connection tube, similar to the closure 24 FIG. 5 is connected to the container 1 by means of an internal thread 33 arranged on a projection 30 and an external thread 32 provided on the connecting tube 19. However, the closure has a free space 31 designed in the region of the dispensing opening 6 such that the closure 24 could be moved further in the direction of the container 1 via said thread. The clearance 31 allows for such an offset that the distance of the tip 36 of the piercing element 35 can be overcome by the sealing membrane 34 and the sealing membrane 34 can be opened. To dispense the multi-component mixture 14, the closure 24 is to be removed from the container 1 in the connection. LIST OF REFERENCE NUMBERS 1 container 21 inner wall 2 inner space 22 Pipe outer edge 3 Sidewall region 23 connecting channel 4 top 24 shutter 5 bottom 25 handle element 6 discharge opening 26 sealing pin 7 fold 27 Sealing pin outer wall 8th shoulders 28 Distal end 9 First chamber 29 Dichtabsschnitt 10 Second Chamber 30 Got over 11 membrane 31 free space 12 First component 32 external thread 13 Second component 33 inner thread 14 Multi-component mixture 34 sealing membrane 15 dead space 35 Piercing element 16 user 36 top 17 thumb 37 substratum 18 index finger 38 Gaseous barrier agent 19 connecting pipe 20 Pipe inside edge

Claims (10)

1. A container (1) for dispensing an adhesive in the form of a multi-component mixture (14), comprising a dispensing opening (6), an inner space (2) being provided which has at least two separate chambers (9, 10) that receive one component (12, 13) each, devices (3, 11) being provided that allow the components (12, 13) to be combined and mixed in the inner space (2), a hollow connecting pipe (19) that protrudes from the dispensing opening (6) into the inner space (2) being provided, the connecting pipe providing a connecting channel (23) between the inner space (2) and the dispensing opening (6), the connecting pipe (19) being in contact, on its side opposite the dispensing opening (19), with one of the components (12) prior to mixing, characterized in that barrier means (26, 34, 38) are provided for the connecting pipe (19), which means prevent contamination of the connecting channel (23) by this component (12), the barrier means (26, 34, 38) being removable for dispensing the multi-component mixture (14).
2. The container according to claim 1, characterized in that the connecting pipe (19) is closed at the dispensing opening (6) and a gaseous barrier means (38) is provided in the connecting channel (23), the side of the connecting pipe (19) opposite the dispensing opening (19) and the viscosity of the first component (12) being selected so as to be matched to one another in such a way that an exchange of the gaseous barrier means (38) and the first component (12) in the closed state of the connecting pipe (19) may be prevented in order to prevent contamination of the connecting channel (23) by this component (12), the gaseous barrier means (38) being removable by opening the connecting pipe (19) at the dispensing opening (6) for dispensing the multi-component mixture (14).
3. The container according to claim 2, characterized in that the opening diameter of the connecting channel (23) is in a range of between 0.8 mm and 2.2 mm and the dynamic viscosity of the one component (12) is in a range of from 6,000 mPas to 80,000 mPas in order to prevent contamination of the connecting channel (23) by the component (12), the barrier means (26, 34) being removable for dispensing the multi-component mixture (14).
4. The container (1) according to claim 1, characterized in that the barrier means (26, 34) is a sealing pin (26) which protrudes into the connecting channel (23) and is removable via the dispensing opening (6), and which allows sealing of the connecting channel (23) at least in the portion of the connecting pipe (19) that protrudes into the inner space (2).
5. The container (1) according to claim 4, characterized in that a closure means (24) is provided for the dispensing opening (6) and surrounds the sealing pin (26) such that the sealing pin (26) is removable together with the closure means (24) in order to allow dispensing of the multi-component mixture (14) via the dispensing opening (6).
6. The container (1) according to either claim 4 or claim 5, characterized in that the sealing pin (26) completely fills the connecting channel (23), at least in regions.
7. The container (1) according to one of claims 4 to 6, characterized in that, in the installed state, the sealing pin (26) ends substantially flush with the end of the connecting pipe (19) located in the inner space (2).
8. The container (1) according to one of claims 4 to 6, characterized in that the sealing pin (26) is longer than the connecting channel and protrudes, at least in regions, from the connecting channel into the inner space.
9. The container (1) according to one of claims 6 to 8, characterized in that at least the distal end (28) of the sealing pin (26) is of a shape that corresponds to the cross-sectional shape of the connecting channel (23), such that the connecting channel (23) is closed by this distal end (28) of the sealing pin (26) in the region which protrudes in the direction of the mixing space (2).
10. The container (1) according to claim 1, characterized in that the barrier means is formed as a sealing membrane (34) on the portion of the connecting pipe (19) which protrudes into the inner space (2), the sealing membrane sealing off the connecting pipe (19) and being openable for dispensing the multi-component mixture (14).

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