Container for viscous material and device for transporting viscous material comprising such a container

Abstract

The invention relates to a container (10) for receiving and / or dispensing a viscous material, comprising: - at least one side wall (11) and a container base (12) which at least partially delimit a container interior (13); and - at least one device (15) for closing the container interior (13) and / or for removing a viscous material from the container interior (13), wherein the device (15) comprises at least one disc-shaped element (16) which is displaceably arranged in the container interior (13), wherein the disc-shaped element (16) is releasably sealed in a closed position (VS) by at least one first sealing means (17) against an inner side (14) of the side wall (11) facing the container interior (13).

Description

[0001] The invention relates to a container for a viscous material and a device for conveying a viscous material using such a container. A container according to the preamble of claim 1 is known, for example, from EP 4 155 244 A1.

[0002] Products are packaged and transported in containers for various applications. Viscous materials, such as adhesives or sealants, are typically placed in a film bag (liner) inside metal containers. Such materials are often removed from the containers using a press or by pumping using a plunger pump combined with a follower plate, which pumps the contents out of the container interior under pressure. A device with a combination of pump and follower plate is known, for example, from EP 4 155 244 A1.

[0003] The device described in EP 4 155 244 A1 comprises a container with an inner cover layer in the form of a film. The film lines the interior of the container and holds a pasty product, e.g. a sealant or adhesive. To remove the product, a follower plate of a pump presses the film towards the container bottom, so that the product is removed through a central opening in the film. A disadvantage of EP 4 155 244 A1 is that the entire film is folded against the container bottom during removal and, in an end position of the follower plate in the area of the container bottom, forms an undesirable limitation of the removal movement of the follower plate. As a result, a correspondingly large residual amount of product remains in the bottom area and cannot be removed. The device does have a raised base to counteract this effect, but there is still room for improvement in this area.

[0004] The invention is therefore based on the object of providing a container for a viscous material whose interior space can be utilized more effectively and in which the filling and removal of the viscous material is simplified. The invention is further based on the object of providing a device with such a container.

[0005] According to the invention, this object is achieved with respect to the container by the subject matter of claim 1. With respect to the device, the above-mentioned object is achieved by the subject matter of claim 20.

[0006] Specifically, the task is carried out by a container for receiving and / or dispensing a viscous material, comprising: at least one side wall and one container bottom, which at least partially define a container interior; and at least one device for closing the container interior and / or for removing a viscous material from the container interior.

[0007] According to the invention, the device comprises at least one disc-shaped element which is arranged displaceably in the container interior and, in a closed position, is releasably sealed by at least one first sealing means against an inner side of the side wall facing the container interior.

[0008] The invention has the significant advantage that the disc-shaped element is detachably connected to the inside of the container side wall by the first sealing means. The disc-shaped element can be in direct or indirect contact with the inside of the side wall. In this state, the disc-shaped element is in a closed position, in which it seals that portion of the container interior that lies between the disc-shaped element and the container bottom.

[0009] The detachable connection between the disc-shaped element and the inside of the side wall makes it possible, in contrast to the prior art, to move the disc-shaped element closer to the container bottom, as there is no folded film to limit the removal movement of the element. This allows essentially the entire amount of viscous material located in the section between the element and the container bottom to be removed. Tests have shown that the residual amount of material remaining is significantly reduced compared to the prior art. The disc-shaped design of the element also makes it possible to fill the container interior with the viscous material almost up to its maximum interior volume. Overall, the container interior can therefore be utilized more effectively.

[0010] In order to remove the viscous material from the partial area of the container interior, the tight connection between the disc-shaped element and the inside of the side wall is broken. This is achieved, for example, by moving a follower plate into the container interior and pressing the follower plate onto the disc-shaped element. A compressive force is applied in the direction of the container bottom, preferably downwards, which acts on the disc-shaped element, wherein the compressive force exceeds a holding force, in particular adhesive force, of the first sealant for holding the disc-shaped element. The follower plate is often heated in order to bring the viscous material filled into the container interior into a processable state. The heated follower plate can promote the loosening of the tight connection between the disc-shaped element and the side wall, but is not absolutely necessary.

[0011] By releasing the tight connection, the disc-shaped element can be moved along the inside of the side wall. To remove the viscous material, the disc-shaped element is moved towards the container bottom. This is preferably done by the follower plate, whereby the disc-shaped element serves as a protective element for the follower plate against the viscous material to be removed during the removal process. Once the disc-shaped element is detached from the inside of the side wall, the disc-shaped element is in a removal state. In the removal state, the disc-shaped element is movable relative to the container bottom. To remove the viscous material, a pump device is preferably provided which pumps the material out of the container interior during the displacement movement of the disc-shaped element.In the case of a covering layer that preferably covers the inside of the side wall and the container bottom, this remains unchanged in its position at least during the removal process.

[0012] The invention has the great advantage that the container according to the invention simplifies the filling and removal of viscous material. In particular, the container enables fully automated filling of the viscous material.

[0013] As described above, the disc-shaped element forms a disc which serves, on the one hand, to close a partial region of the container interior and, on the other hand, to remove a viscous material located in the partial region. The disc-shaped element is preferably designed as a piston-like disc and / or formed from at least one film. The disc-shaped element preferably comprises an outer circumference which substantially corresponds to an inner circumference of the side wall. If a cover layer is present, this is arranged between the inner side of the side wall and the disc-shaped element. The outer circumference of the disc-shaped element is preferably circular. Other shapes are possible. The outer circumference of the disc-shaped element can be oversized with respect to the inner circumference of the container in order to be clamped, in particular slightly, against the side wall.

[0014] The container preferably comprises two longitudinal ends. Preferably, the disc-shaped element closes the container interior, particularly in its closed position, in the direction of a first of the two longitudinal ends, and the container base closes the container interior at a second of the two longitudinal ends. The disc-shaped element and the container base are arranged opposite one another, particularly parallel. The first sealing means is preferably arranged in the region of the first longitudinal end of the container. The position of the first sealing means determines the position of the disc-shaped element in the closed position. Preferably, the container has a central longitudinal axis around which the side wall extends. Particularly preferably, the side wall is designed such that the container has a cylindrical shape. Other shapes are possible.

[0015] The container is preferably a barrel or a container for holding and / or dispensing a viscous material, e.g., an adhesive or sealant. The container can be used as a storage container. Other filling materials are possible. The container interior can have a capacity of essentially 20 to 400 liters, in particular 100 to 300 liters, and particularly preferably 200 liters. It is possible for the container interior to have a capacity of greater than 400 liters or less than 20 liters.

[0016] Preferred embodiments of the invention are specified in the subclaims.

[0017] In a preferred embodiment, the disc-shaped element has at least one collar with an externally arranged sealing surface, which in the closed position is in sealing contact with the first sealing means. This has the advantage of providing a widened sealing area and thus increasing the tightness of the connection. It is also advantageous that, in the removal state, the collar provides a widened surface which, during the removal movement towards the container bottom, preferably slides tightly against the inside of the side wall, in particular the cover layer or directly on the side wall. This prevents viscous material from escaping between the side wall and the collar of the disc-shaped element.

[0018] The collar preferably forms an edge of the disc-shaped element that is closed in the circumferential direction. Particularly preferably, the collar protrudes from the disc-shaped element toward a first longitudinal end of the container. This has the advantage that the disc-shaped element can be moved closer to the container bottom during removal without causing a collar-induced stop.

[0019] In a preferred embodiment, the disc-shaped element is designed as a molded part. Alternatively, the disc-shaped element can be designed as a film component, in particular a film rondel, which is brought into its final shape, for example, when connected, in particular glued, to the inside of the side wall. The disc-shaped element is preferably designed as a single piece. In other words, the disc-shaped element is preferably monolithic. Here, the disc-shaped element forms an individual part, in particular a separate part. The disc-shaped element as a molded part or film component can be produced cost-effectively and has the advantage of being more leak-proof due to its one-piece design.

[0020] In a further preferred embodiment, the disc-shaped element has a through-opening, particularly a central one, that leads into the portion of the container interior located between the disc-shaped element and the container base. It is advantageous if the disc-shaped element is circular in shape. In this embodiment, the viscous material can be removed centrally from the container interior. This allows for particularly effective removal.

[0021] It is advantageous if at least one, in particular flexible, cover element is provided which releasably closes the through-opening, wherein the cover element is sealingly connected to the disc-shaped element by a second sealing means. The cover element can be a film which can be removed through the releasable connection to the disc-shaped element. This has the advantage that the through-opening can be exposed without great effort for removing the viscous material. This facilitates the removal process itself. The second sealing means can be applied to the disc-shaped element and / or the cover element. The cover element is thus preferably provided for temporarily closing the through-opening.

[0022] The cover element preferably comprises at least one section which projects beyond the second sealing means, in particular a free and / or loose section, through which the cover element can be removed from the disc-shaped element, in particular manually. It is possible for the cover element to have more than one projecting section, i.e. at least two sections. The projecting section can be formed, for example, by at least one tab. The cover element can be designed as an oversized disc, which allows a freely ending and loose projection beyond the second sealing means. The projecting section allows the cover element to be detached from the disc-shaped element by hand and pulled off. The advantage here is that any aids, e.g. knives or the like, for opening the through-opening are omitted. This further simplifies the removal process and additionally increases work safety.

[0023] The second sealing means is preferably arranged on the disc-shaped element. When closing the through-opening, the cover element simply needs to be pulled over the second sealing means. It is advantageous if the second sealing means extends at least around the through-opening, in particular completely. This creates a completely sealed connection between the cover element and the disc-shaped element.

[0024] The first sealant is preferably applied to the inside of the side wall as at least one strip that surrounds the container interior. The first sealant can form at least one circumferential track. The first sealant can also comprise several strips that surround the container interior. The first sealant can be arranged on the inside of the side wall so as to completely surround the container interior.

[0025] In one embodiment, at least one of the sealing means, for example, the first and / or second sealing means, consists of a wax material. Wax has the advantage of being well-suited for creating a detachable, sealed connection and is cost-effective. Other sealing materials are possible. For example, the material filled into the container interspace or a sealing adhesive can be used as the first and / or second sealing means.

[0026] Preferably, the disc-shaped element and / or the cover element are formed from a low-vapor diffusion material. The disc-shaped element and / or the cover element can be formed from plastic, in particular polyethylene, or metal, in particular aluminum. It is particularly advantageous if the disc-shaped element is a molded part made of polyethylene.

[0027] The container is preferably made of metal, in particular sheet metal. Specifically, the side wall and / or the container base can be made of metal, in particular sheet metal. It is possible for the container to be made at least partially of plastic.

[0028] In one embodiment, the inside of the side wall is free of a cover layer such that the disc-shaped element is in contact with the side wall. In other words, the inside of the side wall is uncoated, i.e. not covered. In the closed position, the disc-shaped element is directly connected to the (core) material forming the side wall by means of the first sealing means. In other words, the disc-shaped element can be releasably sealed by the first sealing means against the raw material of the, in particular untreated, side wall or against at least one cover layer covering the inside of the side wall. In the removed state, the disc-shaped element lies essentially directly against the inside of the side wall. The advantage here is that the container is simple in design and cost-effective.

[0029] In a further embodiment, the inner side of the side wall is formed by at least one cover layer lining the container interior, with which the disc-shaped element is in contact. The cover layer is preferably fixed, in particular stationary, during removal of a viscous material located between the disc-shaped element and the container base. In other words, the cover layer remains on the side wall during a removal process, in particular without creases. This has the advantage that the cover layer does not fold when the viscous material is removed, and thus the container interior can be almost completely emptied.

[0030] In a preferred embodiment, the cover layer rests on the inside of the side wall and / or the container base without bubbles and / or wrinkles. In other words, the cover layer is arranged tightly against the side wall and the container base without trapping air between the container and the cover layer. Furthermore, the cover layer is arranged free of wrinkles. In this case, the cover layer sits firmly against the side wall and / or the container base, thus achieving a stationary, in particular fixed, arrangement of the cover layer in the container. Such an arrangement can be achieved, for example, by means of an inflatable balloon.

[0031] The cover layer is preferably formed from a plastic film and forms a stationary inner liner of the container. In this sense, "stationary" means that the inner liner does not change its position and shape, or cannot be changed, at least until after the viscous material has been removed.

[0032] Particularly preferably, the cover layer is removable from the side wall and the container base, in particular without leaving any residue. This allows the container to be separated into separate materials, which allows for recycling or reuse.

[0033] The cover layer can be slipped over the side wall at a first longitudinal end of the container and preferably runs on an outer side of the side wall at least partially towards a / the second longitudinal end of the container.

[0034] In one embodiment, the cover layer is formed by a film bag which is sucked onto the side wall and / or the container bottom by vacuum, in particular free of bubbles and / or wrinkles, or the cover layer is formed by a preformed cover layer insert, in particular a molded liner.

[0035] Alternatively, the cover layer can be formed by a layer, in particular a film, sprayed onto at least the side wall and / or the container base. In other words, the cover layer can be formed by a sprayed-on plastic material to form a plastic film. Additionally, an outer side of the side wall and / or the container base can be coated with a plastic material to form an outer layer to provide color and protect the container from corrosion.

[0036] According to a secondary aspect, the invention relates to a device for conveying a viscous material, which device has at least one conveying pump with a removal unit, in particular a scoop piston pump and / or a follower plate, and at least one container according to the invention, wherein the removal unit with the disc-shaped element is movable towards the container bottom and, in a removal operation, moves with the disc-shaped element in the direction of the container bottom into the container interior and removes the viscous material via the through-opening of the disc-shaped element. Reference is made here to the advantages explained in connection with the container. Furthermore, the device can alternatively or additionally have individual features or a combination of several of the features previously mentioned in relation to the container.

[0037] The invention will be explained in more detail below with reference to the accompanying drawings. The illustrated embodiments represent examples of how the container according to the invention can be designed.

[0038] In these show Fig. 1 is a partial view of a container according to a preferred embodiment of the invention; Fig. 2 is a perspective overall view of the container according to Fig. 1 and individual components of the container in exploded view; Fig. 3 a perspective view of a first filling component, in particular an insert ring, for transporting the container according to Fig. 1 in a filled state; Fig. 4 a perspective partial view of the container with a second filling component, in particular an inflatable cushion, for transporting the container according to Fig. 1 in a filled state; Fig. 5 a longitudinal section through the container according to Fig. 1, wherein the container bottom is excluded; and Fig. 6 a cover layer of the container according to Fig. 1 .

[0039] In the following, the same reference numbers are used for identical or equivalent parts.

[0040] Fig. 1 shows a container 10 according to a preferred embodiment of the invention. The container 10 is preferably used as packaging for a viscous material, for example, an adhesive or a sealant. The container 10 can alternatively serve as packaging for other, unmentioned materials.

[0041] As in Fig. 1 As shown, the container 10 has an elongated shape. Specifically, the container 10 is designed as a barrel, in particular a container. The container 10 has a central longitudinal axis LA. Fig. 1It can be seen that the container 10 is rotationally symmetrical with respect to the central longitudinal axis LA. Furthermore, the container 10 comprises two opposite and spaced-apart longitudinal ends 28, 29, between which a side wall 11 extends. Specifically, the two longitudinal ends 28, 29 are opposite each other in the longitudinal direction.

[0042] The side wall 11 is shaped such that the container 10 has a cylindrical outer shape. In other words, the side wall 11 completely surrounds the central longitudinal axis LA, forming a closed cylindrical shape. The container 10 has an interior space 13 for accommodating the viscous material. The interior space 13 is laterally delimited by the side wall 11. Specifically, the side wall 11 delimits the interior space 13 circumferentially, i.e., transversely to the central longitudinal axis LA.

[0043] As from Fig. 2As can be seen, the container 10 comprises a container bottom 12, which completely closes the container interior 13 at the second longitudinal end 29. According to Fig. 1 the container 10 is also designed to be closed at the first longitudinal end 28.

[0044] The container 10 has a cover layer 31 that lines the container interior 13. Specifically, the cover layer 31 lines an inner side 14 of the side wall 11 and the container base 12 facing the container interior 13. The cover layer 31 is arranged so as to fit tightly against the inner side 14 of the side wall 11 and the container base 12. Particularly preferably, the cover layer 31 lies against the inner side 14 of the side wall 11 and the container base 12 without bubbles or wrinkles. The design and arrangement of the cover layer 31 will be discussed in more detail later. Alternatively, the inner side 14 of the side wall 11 can be free of a cover layer, i.e., not covered. The cover layer 31 is not absolutely necessary for the function of the container 10.

[0045] As in the Fig. 1 and 2As can be clearly seen, the container 10 has a device 15 for closing the container interior 13. The device 15 is also used for removing a viscous material filled into a partial area 32 of the container interior 13. The device 15 comprises a disc-shaped element 16 which, in a closed position VS, is releasably sealed against the cover layer 31 by a first sealing means 17. This releasable connection of the disc-shaped element 16 to the cover layer 31 is necessary in order to displace the disc-shaped element 16 towards the container bottom 12 in order to remove the viscous material.

[0046] In order to remove the viscous material from the partial area 32 of the container interior 13, the tight connection between the disc-shaped element 16 and the cover layer 31 is broken. This is done, for example, by inserting a follower plate (not shown) into the container interior 13 and pressing the follower plate onto the disc-shaped element 16. In doing so, a compressive force is applied in the direction of the container bottom 12, preferably downwards, which acts on the disc-shaped element 16, wherein the compressive force exceeds a holding force, in particular adhesive force, of the first sealing means 17 for holding the disc-shaped element 16. The follower plate is often heated in order to bring the viscous material located in the partial area 32 of the container interior 13 into a processable state. The heated follower plate can promote the release of the tight connection between the disc-shaped element 16 and the side wall 11, but is not absolutely necessary.

[0047] By releasing the tight connection, the disc-shaped element 16 can be moved along the cover layer 31. To remove the viscous material, the disc-shaped element 16 is moved in the direction of the container base 13. This is preferably done by the follower plate, wherein the disc-shaped element 16 serves as a protective element for the follower plate during the removal process against the viscous material to be removed. Once the disc-shaped element 16 is detached from the side wall inner side 14, the disc-shaped element is in a removal state. In the removal state, the disc-shaped element 16 is movable relative to the container base 13. The cover layer 31, which covers the side wall 11 and the container base 13, remains unchanged in its position at least during the removal process. In other words, the cover layer 31 is stationary, i.e., fixed, on the side wall 11 and the container base 13.

[0048] Fig. 1 and 2 show that the disc-shaped element 16 is designed as a molded part. For the sake of simplicity, the disc-shaped element 16 is referred to below as the molded part 16, with the following description of the molded part also applying to the disc-shaped element.

[0049] In Fig. 2It is clearly visible that the molded part 16 has a collar 18 with an externally arranged sealing surface 19, which in the closed position VS is in sealing contact with the first sealing means 17. When the viscous material is removed, the collar 18 creates a widened collar surface which slides tightly against the cover layer 31 during a removal movement of the molded part 16 in the direction of the container base 12. The collar 18 forms an edge of the molded part 16 which is closed in the circumferential direction. The collar 18 also projects from the molded part 16 in the direction of the first longitudinal end 28 of the container 10. The molded part 16 is therefore bowl-shaped. Or to put it another way, the molded part 16 is a bowl-shaped disc. The molded part 16 is circular.

[0050] By forming the disc-shaped element as a molded part 16, it is formed in one piece. In other words, the molded part 16 is monolithic. The molded part 16 is made of a low-vapor diffusion material. Preferably, the molded part 16 is made of plastic, in particular polyethylene, particularly preferably high-density polyethylene (HDPE). Alternatively, the molded part 16 can be made of metal, in particular sheet metal. Other materials are possible.

[0051] According to Fig. 2the molded part 16 has a through-opening 22 that leads into the partial area 32 of the container interior 13, which is located between the molded part 16 and the container base 12. The through-opening 22 is circular. The through-opening 22 can alternatively have a different shape. The through-opening 22 is concentric. In other words, the through-opening 22 is formed centrally in the molded part 16. The molded part 16 therefore has a circular ring shape. The molded part 16 has an underside facing the partial area 32 of the container interior 13, which underside is essentially flat. The molded part 16 is rigid, although slight deformation is possible during removal.

[0052] Fig. 1 and 2 show that the device 15 has a cover element 23 for the through opening 22. According Fig. 1 the cover element 23 is arranged on the molded part 16, whereby it releasably closes the through opening 22. In Fig. 2 The cover element 23 is shown in a released state. In the closed position VS, the cover element 23 is sealingly and releasably connected to the molded part 16 by a second sealing means 24.

[0053] In this case, the cover element 23 is a flexible film that can be removed through its detachable connection to the molded part 16. The cover element 23 comprises a tab 25 through which the cover element 23 can be manually removed from the molded part 16. The tab 25 thus allows the cover element 23 to be manually removed from the molded part 16. The cover element 23 is thus provided for temporarily closing the through-opening 22.

[0054] To remove the viscous material arranged in the partial area 32, the cover element 23 is removed, exposing the through-opening 22. Subsequently, the molded part 16 is released as described and moved toward the container bottom 13. As a result, the viscous material escapes through the through-opening 22 and can be removed, for example, by a removal unit, in particular a pumping device.

[0055] The cover element 23 is preferably formed from a metal foil. This can be made of aluminum. It is also possible for the cover element 23 to consist of a plastic foil. It is essential that the cover element 23 be formed from a low-vapor diffusion material.

[0056] The second sealant 24 can be applied to the molded part 16 or the cover element 23. In any case, the second sealant 24 is in sealing contact with the molded part 16 and the cover element 23. Fig. 2shows that the second sealing means 24 completely surrounds the through opening 22.

[0057] The first sealant 17, however, is arranged on an inner side 33 of the cover layer 31 (see Fig. 1 ). The first sealing means 24 is continuous in the circumferential direction. In other words, the first sealing means 17 forms a closed sealing strip 26 with respect to the central longitudinal axis LA, which sealing strip is arranged, in particular applied, on the inner side 33 of the cover layer 31. The first sealing means 17 therefore forms a circumferential path on the inner side 33 of the cover layer 31. The first sealing means 17 is preferably located near the first longitudinal end 28 of the container 10. The position of the first sealing means 17 determines the position of the closed position VS. This means that the molded part 16 is also located in the region of the first longitudinal end 28 of the container 10 in the closed position VS.

[0058] The two sealing means 17, 24 comprise a wax material. The sealing means 17, 24 may additionally or alternatively comprise a different sealing material.

[0059] In order to prevent unwanted sloshing, for example when transporting low-viscosity materials, a filling component, for example an insert ring 35 (see Fig. 3 ) or an inflatable cushion. The filling component, in particular the insert ring 35, can be made of Styrofoam. Other means are possible.

[0060] Fig. 4 shows a free space 36 that can occur when a filled, in this case turned, inliner is deformed, for example, due to a strong braking maneuver. Inserting the filling component, in particular the insert ring 35, can prevent such a free space 36 from occurring.

[0061] As described above, the container interior 13 is lined with the cover layer 31. The cover layer 31 forms an inliner into which a viscous material is poured. The cover layer 31 is fixedly arranged on the side wall 11 and the container base 12. The cover layer 31 can additionally be detached from the container 10, i.e., the side wall 11 and the container base 12, if necessary. The cover layer 31 comprises a film bag that is introduced into the container interior 13 and, by vacuum, rests against the side wall 11 and the container base 12 without any air inclusions and without wrinkles. Fig. 5 shows the cover layer 31 in its bubble-free and wrinkle-free arrangement. Fig. 6 shows that the cover layer 31 can be removed from the base body of the container 10, i.e., the side wall 11 and the container bottom 12. This is relevant, for example, for the production of a purity of materials, which considerably simplifies recycling.

[0062] Fig. 1shows that the film bag extends from the inside outward over a container edge 34 in the region of the first longitudinal end 28 of the container 10. In other words, the film bag is slipped over the container edge 34. The film bag extends on an outer side 27 of the side wall 11 partially toward the second longitudinal end 29 of the container 10, in particular downwards.

[0063] As an alternative to the film bag, it is possible for the cover layer 31 to be formed from a preformed cover layer insert, namely a form liner. Furthermore, it may be advantageous to form the cover layer 31 by spraying a plastic material onto the side wall 11 and the container base 12. It is also conceivable to spray the outer side 27 of the side wall 11 with the same or a different plastic material to form the cover layer 31. List of reference symbols

[0064] 10Container 11Side wall 12Container base 13Container interior 14Inside of the side wall 15Device 16Disc-shaped element 17First sealant 18Collar 19Sealing surface 21Rim 22Through opening 23Cover element 24Second sealant 25Tab 26Strip 27Outside of the side wall 28First longitudinal end 29Second longitudinal end 31Cover layer 32Partial area of the container interior 33Inside of the cover layer 34Container edge 35Insert ring 36Free space LA Central longitudinal axis VSClosed position

Claims

1. A container (10) for receiving and / or dispensing a viscous material, comprising: - at least one side wall (11) and a container bottom (12) which at least partially define a container interior (13); and - at least one device (15) for closing the container interior (13) and / or for removing a viscous material from the container interior (13), characterized in that the device (15) comprises at least one disc-shaped element (16) which is displaceably arranged in the container interior (13), wherein the disc-shaped element (16) is releasably sealed in a closed position (VS) by at least one first sealing means (17) against an inner side (14) of the side wall (11) facing the container interior (13).

2. Container (10) according to claim 1, characterized in thatthe disc-shaped element (16) has at least one collar (18) with an externally arranged sealing surface (19) which, in the closed position (VS), is in sealing contact with the first sealing means (17).

3. Container (10) according to claim 2, characterized in that the collar (18) forms an edge (21) of the disc-shaped element (16) which is closed in the circumferential direction.

4. Container (10) according to claim 2 or 3, characterized in that the collar (18) projects towards a first longitudinal end (28) of the container (10) on the disc-shaped element (16).

5. Container (10) according to one of the preceding claims, characterized in that the disc-shaped element (16) is designed as a molded part or as a film component, in particular a film roundel.

6. Container (10) according to one of the preceding claims, characterized in thatthe disc-shaped element (16) has a through-opening (22), in particular a central one, which leads into that part of the container interior (13) which is located between the disc-shaped element (16) and the container bottom (12).

7. Container (10) according to one of the preceding claims, in particular according to claim 6, characterized in that at least one, in particular flexible, cover element is provided which releasably closes one / the through opening (22), wherein the cover element (23) is sealingly connected to the disc-shaped element (16) by a second sealing means (24).

8. Container (10) according to claim 7, characterized in that the cover element (23) has at least one section projecting beyond the second sealing means (24), in particular a tab (25), through which the cover element (23) can be removed from the disc-shaped element (16), in particular by hand.

9. Container (10) according to claim 7 or 8, characterized in thatthe second sealing means (24) is arranged on the disc-shaped element (16) and surrounds at least one through-opening (22), in particular completely.

10. Container (10) according to one of the preceding claims, characterized in that the first sealing agent (17) is applied to the inside (14) of the side wall (11) or mold liner as at least one strip (26) which runs around the container interior (13).

11. Container (10) according to one of the preceding claims, characterized in that at least one of the sealing means (17, 24) consists of a wax material, a viscous material filled into the container interior (13) or a dense adhesive.

12. Container (10) according to one of the preceding claims, in particular according to claim 7 or 8, characterized in that the disc-shaped element (16) and / or the cover element (23) are formed from a low-vapour diffusion material.

13. Container (10) according to one of the preceding claims, in particular according to claim 7 or 8, characterized in that the disc-shaped element (16) and / or the cover element (23) is made of plastic, in particular polyethylene, or metal, in particular aluminum.

14. Container (10) according to one of the preceding claims, characterized in that the inner side (14) of the side wall (11) is free of a covering layer in such a way that the disc-shaped element (16) is in contact with the side wall (11).

15. Container (10) according to one of claims 1 to 13, characterized in that the inner side (14) of the side wall (11) is formed by at least one cover layer (31) lining the container interior (13) with which the disc-shaped element (16) is in contact.

16. Container (10) according to claim 15, characterized in that the cover layer (31) rests on the inside of the side wall (11) and / or the container base (12) without bubbles and / or wrinkles.

17. Container (10) according to claim 15 or 16, characterized in that the cover layer (31) is slipped over the side wall (11) at a first longitudinal end (28) of the container and extends on an outer side (27) of the side wall (11) at least partially towards a / the second longitudinal end (29) of the container (10).

18. Container (10) according to one of claims 15 to 17, characterized in that the cover layer (31) is formed by a film bag which is sucked onto the side wall (11) and / or the container bottom (12) by vacuum, or is formed by a preformed cover layer insert, in particular a molded liner.

19. Container (10) according to one of claims 15 to 17, characterized in that the cover layer (31) is formed by a layer, in particular film, sprayed onto at least the side wall (11) and / or the container bottom (12).

20. Device for conveying a viscous material, which has at least one feed pump with a removal unit, in particular a scooping piston, and at least one container (10) according to one of the preceding claims, wherein the removal unit with the disc-shaped element (16) is movable towards the container bottom (12) and in a removal operation moves with the disc-shaped element (16) in the direction of the container bottom (12) into the container interior (13) and removes the viscous material via the through-opening (22) of the element (16).

Images