EP2177456A1 - Packaging unit for mutually reactive materials - Google Patents

Abstract

The packaging unit (1) has two substances, which are arranged in a container, where envelopes are provided additionally in the container. One of the substances is arranged in each envelope such that a reaction of the reactive substances with each other is prevented. The substances are made of resins, curing unit, glue, dye and quartz.

Description

The present invention relates to a packaging unit according to the preamble of claim 1.

Such packaging units are used in particular in the production of plastic, but can also be used in other applications, such. B. in two-component adhesives or the like.

"Reactive" in this context means not only that a chemical reaction of substances among each other to a new substance is possible, but also that physical reactions, such. B. the inclusion of granules in an adhesive, wherein the granules are not dissolved in the adhesive, but only bound, are possible.

In the field of plastics production, it has hitherto been known to package two or three reactive chemicals in two different containers, preferably plastic or metal containers, and to assemble them into a packaging unit, wherein the end product in the form of a specific plastic can then be produced from the reactive chemicals.

Since the various chemicals for producing the final product must be mixed by the user, the container of a component is usually only partially, i. H. filled with 40 to 60% of its nominal container volume. In the production of the final product, the other components of this component are then mixed in this container, whereby a chemical reaction is initialized and optionally after stirring the final product is ready for use.

A disadvantage of this known solution that remains unused by the only partially filled container, a large volume range of the packaging unit during storage, transport and handling, which on the one hand unnecessary material is wasted and on the other increased costs arise from the fact that the transport volume is increased, higher Reprocessing costs for the container material and possibly an increased environmental tax burden.

The object of the present invention is therefore to provide a packaging unit which overcomes these disadvantages, ie is particularly cost-effective in its production and in storage, transport and handling and also no high follow-up costs caused, but in particular a simple manufacturability of a final product should be given by the user.

This object is achieved by a packaging unit according to claim 1. Advantageous embodiments of this object are specified in the dependent subclaims.

The packaging unit according to the invention for a number of n ≥ 2 substances, wherein at least two substances are reactive substances with one another and a reactive substance is received in a container, is characterized in that all n substances (usually an A component and a B Component which effects the reaction with the A component and fillers or effect substances) are arranged in the container, wherein in addition at least n-1 enclosures are provided in the container and in each of these enclosures one of n-1 substances is arranged, so that a reaction of the reactive substances with each other and a mixing of the substances is prevented. This ensures that all substances can be accommodated together in a single container, without any mixing or reaction of the individual substances can take place. The space requirement and packaging costs are thereby significantly reduced. In addition, the provision of a single, for example, stable container for producing the packaging unit is sufficient, whereas previously such packaging units consisted of several stable containers.

Each fabric is advantageously arranged in a separate envelope, so that each substance can be easily removed from the packaging unit. However, to further save on packaging material, it may also be provided that a substance is not placed in its own envelope, but is e.g. is arranged without its own wrapping in the container itself. This can e.g. then take place, if this substance is a basic material which quantitatively forms the main part of an end product to be produced and the final product is to be mixed together directly in the container.

Suitably, the wrapper may be a closed container portion of the container. This is achieved, for example, in that individual container sections are separated from one another by glued-in trays and the substances are placed in the spaces created. To prepare a mixture of the starting materials, these intermediate floors are then simply separated out. For substances that added later to such a mixture Of course, a separate wrapping in the form of, for example, a bag, a sack or a bag may be provided, which is formed, in particular, from a plastic which is inert to the material received therein. On the other hand, one of the substances can also be placed loosely in the sealable container and the other substances are placed in separate envelopes in the container. The closed container then forms the wrapping of the loose substance.

In contrast, if no lid is provided for the container, it is the basic form of the packaging unit according to the invention, in which an envelope is less than to provide substances. Of course, instead of a separate wrapping material, the wrapping of the other substances can also take place again through intermediate bottoms in interaction with the container itself. However, it is preferred that the design with a lid, since then the substance is not readily removed from the container or e.g. can be spilled.

In a preferred embodiment, the container is a bucket, a can or a drum and consists in particular of plastic, metal, hard cardboard or cardboard, wherein the container preferably has a safety cover that can not be opened without visible destruction of a fuse. In this way, the mixture can be done directly in the container and the consumer is warned about already opened packaging units.

Advantageously, the materials are materials from the group resin, hardener, adhesive, dye and quartz. From this it is possible to produce plastics, in particular directly in the container. For this or for other end products, it is preferred that the substances are starting materials of a final product. Suitably, the dimensions of the sheaths and thus the amounts of substance are adjusted so that the container contains the starting materials in the mixing ratio necessary for the final product. In order to be able to carry out the mixture directly in the container, without the risk of contamination or damage to the container, it is particularly preferred if the container material is chemically inert to the starting materials, the end product and optionally the intermediate or intermediates. Finally, the container should in particular have sufficient stability to serve as a mixing vessel during the preparation of the final product.

Fig.1

eine Verpackungseinheit gemäß einer ersten Ausführungsform der Erfindung,

Fig. 2

eine Verpackungseinheit gemäß einer zweiten Ausführungsform der Erfindung und

Fig. 3

eine Verpackungseinheit gemäß einer dritten Ausführungsform der Erfindung.

The characteristics and advantages of the present invention will now be apparent from the description of preferred embodiments in conjunction with the drawings. Showing:

Fig.1

a packaging unit according to a first embodiment of the invention,

Fig. 2

a packaging unit according to a second embodiment of the invention and

Fig. 3

a packaging unit according to a third embodiment of the invention.

In the Fig. 1 to Fig. 3 three different preferred embodiments of the present invention are shown purely schematically, wherein in each case on the left side a sectional view and on the right side a view is reproduced. The same or the same reference numerals are used for the same or the same elements.

In Fig. 1 a first packaging unit 1 is shown, which is formed from a metal bucket 2 with a lid 2a and arranged therein bags 3, 4, in each of which a chemical 5, 6 is added. The two chemicals 5, 6 are, for example, a curing agent 5 and a resin 6, which are chemically reactive with each other so that after preparation of a mixture, the resin hardens and from it a plastic can be produced. To facilitate the transport of the bucket 2 is provided with a handle 7. The lid 2a is one which is clamped by means of a encompassing edge 8 on the wall 9 of the bucket 2.

The bags 3, 4 of the packaging unit 1 consist of a vacuum blown or laminated plastic which is chemically inert to the chemicals 5, 6, d. H. is not reactive. The bags 3, 4 have been closed after filling with the respective chemicals 5, 6 by heating or ultrasonic welding, whereby the two chemicals 5, 6 are not only against each other, but also with respect to the container 2, 2a isolated, so that neither a thorough mixing still reaction of the chemicals 5, 6 can be done with each other.

The packaging unit 1 'according to Fig. 2 is formed from an air-blown plastic drum 10 with a lid 10a, inside which in turn bag 3, 4 with chemicals 5, 6 are included. The cover 10a may either be a clamping cover, but it is preferred that this is screwed over a counter-rotating screw thread with the projecting opening 11 of the barrel 10 in particular sealingly. To facilitate handling of such a packaging unit 1 ', which may include large amounts of chemicals 5, 6, annular bulges 12 are provided, which not only serve to stiffen the drum 10, but also facilitate its rollability on the side surface.

The packaging unit 1 "according to Fig. 3 is like the one according to Fig. 1 from a bucket 2 ', but made of plastic, and a lid 2a' formed, in turn, bags 3, 4 are added with chemicals 5, 6. Again, a mounting bracket 7 is provided for easier handling. The bucket 2 'in this case has a base 20 and the lid 2a' is provided with stiffening ribs 21. In addition, on the protruding projection 22 of the lid 2a 'and the protruding surface 23 of the bucket 2', a seal, for example in the form of an adhesive tape be attached.

Alternatively to the in Fig. 1 or. Fig. 3 shown bucket 2, 2 'can also be a bucket with safety lock according to DE 102 60 225 A1 be used.

While the containers 2, 10, 2 'of the Fig. 1 to 3 can consist of a relative to the chemicals 5, 6 inert plastic, a metal, cardboard or cardboard can be used, since the chemicals 5, 6 are enveloped by the bags 3, 4.

The quantities of chemicals packed in the packaging units 1, 1 ', 1 "are coordinated so that their mixing leads to the desired end product in the correct composition, wherein if the container 2, 10, 2' consists of an inert material, the Production of the final product in a simple manner done by the bags 3, 4 are removed and the mixture takes place directly in the container 2, 10, 2 '.

Although in the embodiments shown only two substances, namely 2 chemicals 5, 6 are packed, of course, other substances in the packaging units can be packed with. These substances do not have to be reactive with themselves react to other substances in the packaging unit. For the production of plastics, this may be, in addition to resin 5 and the curing agent 6, for example, also adhesives, dyes, quartz particles and the like. Also their amount can be adjusted by suitable dimensioning of the bags 3, 4 so that the amounts of starting materials contained in the packaging unit automatically give the desired composition of the final product.

From the foregoing it has become clear that with the present invention two or more substances, two of which are reactive substances with one another, can be combined in a common container to form a packaging unit, whereby the packaging space is optimally utilized. Even if the container 2, 10, 2 'itself is to be used as a mixing vessel for the packaged substances 5, 6, no surplus packaging space as in previously known solutions is more necessary. As a result, the packaging unit according to the invention is not only more economical, but also more ergonomic usable, in particular, a higher stacking stability during storage and transport is given for this packaging unit.

In the event that the container 2, 10, 2 'should not be used as a mixing vessel, there is the advantage, in particular when wrapping each substance 5, 6 packed therein with a separate bag 3, 4, that the container 2, 10, 2 'not polluted and can be used without a costly cleaning. For the packaging units 1, 1 ', 1 "then only the individual bags 3, 4 and the packaged substances 5, 6 are to be provided as a consumable.

Thus, it should be noted that the packaging unit 1, 1 ', 1 "according to the invention requires less packaging material 3, 4, 5, 6, increases storage and transport capacities, reduces recycling costs and environmental pollution fees, and is also more environmentally friendly than previously known solutions.

Claims (10)

Packaging unit (1, 1 ', 1 ") of a number of n ≥ 2 substances (5, 6), wherein at least two substances with one another reactive substances (5, 6) and a reactive substance (5, 6) in a container (2 10, 2 ') is recorded,
characterized in that
all n substances (5, 6) are arranged in the container (2, 10, 2 '), wherein additionally in the container (2, 10, 2') at least n-1 envelopes (3, 4) are provided and in each of these sheaths (3, 4) one of n-1 substances (5, 6) is arranged, so that a reaction of the reactive substances (5, 6) with each other and a mixing of the substances (5, 6) is prevented. Packaging unit (1; 1 '; 1 ") according to claim 1, characterized in that each substance (5, 6) is arranged in a separate envelope (3, 4). Packaging unit according to claim 1 or 2, characterized in that the envelope is a closed container portion of the container. Packaging unit (1; 1 '; 1 ") according to one of the preceding claims, characterized in that the envelope is a bag (3, 4), a bag or a bag, in particular formed from a substance (5, 6) received therein ) inert plastic. Packaging unit (1; 1 '; 1 ") according to one of the preceding claims, characterized in that the container (2; 10; 2') is a bucket (2; 2 '), a can or a drum (10) and in particular made of plastic, metal, hard cardboard or cardboard, wherein the container preferably has a safety cover that can not be opened without visible destruction of a fuse. Packaging unit (1; 1 '; 1 ") according to one of the preceding claims, characterized in that the substances (5, 6) are materials from the group consisting of resin, hardening agent, adhesive, dye and quartz. Packaging unit (1; 1 '; 1 ") according to one of the preceding claims, characterized in that the substances (5, 6) are starting materials of a final product. Packaging unit (1; 1 '; 1 ") according to claim 7, characterized in that the dimensions of the envelopes (3, 4) and thus the amounts of substance are adjusted so that the container (2; 10; 2') the starting materials in the contains for the final product necessary mixing ratio. Packaging unit (1, 1 ', 1 ") according to claim 7 or 8, characterized in that the container material is chemically inert to the starting materials (5, 6), the end product and optionally the intermediate or intermediates. Packaging unit (1; 1 '; 1 ") according to claim 9, characterized in that the container (2; 10; 2') has sufficient stability to serve as a mixing vessel during the preparation of the final product.

Images