NL8007010A - CARRYING MATERIAL FOR AN INSULATION ELEMENT. - Google Patents

Description

ί * h. ο 29743

Turning material for an insulating element.

The invention relates to a support material for an insulating material of glass and / or mineral fibers, which support material is water vapor-tight as well as at least in three layers and is connected with the insulating material to an insulating element for sound and / or heat insulation. .

Insulation elements are used, for example, for covering roofs, walls and ceilings as well as pipelines and aeration channels. They can be based on at least three layers of a water-vapor-proof support material, which is bonded with an insulating material of glass and / or mineral fibers. On the three layers of the support material, the outer layers are formed by metal foils, thin metal strips, chemically treated or untreated papers and plastic films. As a rule, which materials are used depends on the place of application. In principle, however, they must have such properties that they meet the requirements regarding strength as well as resistance to temperature, fire and chemicals. They also serve as transport protection, installation assistance, visible surface and protection against fire. In particular, however, the outer layers must perform the function of a so-called vapor barrier, ie they must separate two at least different climatic conditions on either side of an insulating element.

For the production of an insulating element, for example, continuous material layers, for instance of aluminum foil, are first joined together, for instance bonded together. The insulating material consisting of glass and / or mineral fibers, for example of rock wool, is then attached to one of the outer layers.

For this purpose, in a first treatment step, the two continuous material layers are joined together by a suitable bonding material or by a sealing compound, and then in a second treatment step, the multi-layered support material thus formed is provided with a coating which adheres the insulating material. on the carrier material.

In this connection it is known to provide the carrier material first with an adhesive of 8007010 w '-i independent of the insulating material.

2 capable material layer. For this purpose, as a rule, the application by means of rolling or pressing the sealing mass through a nozzle with "wide slot" is chosen. The carrier material pretreated in this way is then used for connection with the insulating material in a later stage. heated with the aid of, for example, a heating roller, so that the sealing compound plasticizes, thereby forming a connection with the insulating material and causing the adhesion of the insulating material to the carrier material during cooling. Furthermore, it is known shortly before joining the support material 10 with the insulating material to coat the usually web-like tapering support material with aqueous or dissolved adhesive materials, such as dispersions, emulsions or water glass. The thus-coated webs are immediately contacted with the insulating material and subsequently dried.

Irrespective of the method used for the application or for the application of the layer, however, this involves high material and treatment costs. Particularly when adhesives are used for attaching the insulating material, application and drying after attaching the insulating material to the support material requires high-quality technical equipment and careful control. Add to this the energy costs for drying.

In addition to the manufacturing disadvantages, a further significant disadvantage of the known insulating elements is that they do not meet the more highly qualified fire protection requirements. This is because there is a danger that a flame can continue to eat freely along the sealing layer between the insulating material and the adjoining material layer, because there are no barriers here.

It is admittedly also possible, with a three-layer support material, to apply a layer to one of the outer layers which both offers resistance to flames or is at least flame-retardant, as well as permits complete adhesion of the insulating material to the support material. The application of such a layer is, however, disproportionately demanding and therefore involves additional costs, a great deal of time and the use of special machines.

The object of the invention is therefore to provide a support material for an insulating element serving for the sound and / or heat insulation, which requires considerably less technical costs and which also meets the high requirements of the fire protection ensures sufficient connection with an insulating material.

According to the invention, the solution to this task consists in that one of the two outer layers of the carrier material has openings as adhesion points between the insulating element and a securing, which is also a continuous layer of a sealing layer, which secures the broken outer layer on a continuous material layer. state mass.

The basic idea of the measure according to the invention is now to utilize the material layer which contacts the insulating material and a further uninterrupted material layer, which is also applied continuously, as a means for fixing the insulating material on the carrier material. It is therefore possible to refrain from applying a layer of the support material again to fix the insulating stop. This eliminates further steps and corresponding machines. Personnel and material, such as, for example, adhesion or sealing materials, can be saved, so that the total manufacturing costs of the insulating elements are also significantly reduced.

By using at least three-layer support material (two outer layers, one connecting layer), two of which are continuous, and therefore have a sufficient water vapor density, the requirements imposed on a support material can be distributed in an especially suitable manner between the different layers.

When the support material is bonded to the insulating material, when the sealing mass is heated, only the breaches come into contact with the insulating material, so that there are only bonding points here and there. It is of particular importance here that the design, size and distribution of these bonding points in the plane of the material layer bordering the insulating material is designed such that, taking into account the application location of the complete insulating element, the 35 depends on the local conditions. The design of the materials of the support material as well as the character of the sealing compound at the place of application will prevent any expected fires from spreading from the bonding site to the bonding site. The non-broken surface areas, if they consist of a non-flammable layer, such as, for example, a metal foil, therefore form to some extent flame barriers which prevent the flames from spreading in the plane of the insulation. element. An insulating element provided with the carrier material according to the invention thus also meets the very high requirements of the fire protection that occurs.

The continuous sealing layer between the broken material layer and the adjacent continuous material layer must form a good bond with the insulating material within suitable sealing temperature ranges and ensure a faultless connection of the material layers even after cooling.

It is advantageous if the sealing compound is high- or low-pressure polyethylene. Polyvinyl chloride such as polyvinylidene chloride is also conceivable. Furthermore, polyesters, polyamides, polypropylene or mixtures or copolymers of these materials as well as synthetic resin ionomers can be used. The layers of material held together by the mass which is capable of sealing consist of substances which meet the requirements of the respective application site, in particular with regard to strength, resistance to temperature, fire and chemicals. This may involve metal foils, thin metal strips, chemically treated or untreated papers, as well as plastic foils and gas fiber webs or glass fiber fabrics. These materials not only guarantee a trouble-free processing of the carrier material during the connection with the insulating material, but they are also very flexible, flexible and load-bearing. Furthermore, they have a high resistance to tearing and further tearing, and in particular a good barrier property against water vapor.

Although it is generally sufficient for the support material to consist of only the material layer which has been broken through and a further mass capable of sealing with this connected continuous material layer, it may be advantageous in certain applications that between these material layers for increasing the strength still a fabric, individual longitudinal threads, a grid, a non-woven material or nonwovens are used. In addition, the outside of the continuous material layer can optionally still be used as a visible surface, so that certain symbols or features, for example in the sense of advertising, can be applied in this area.

An extension of the flame front in the plane of an insulating 40 element is according to an advantageous embodiment of the invention by 8007010. definitely prevented * that the ratio of the broken surface parts to the non-broken surface parts of the outer layer is about 2: 8 to 8: 2.

The breaches can be separate larger breaches according to the invention. It is also possible to summarize smaller breaches in groups. It is important for both embodiments that sufficiently large non-broken surface parts are present between the individual breaks or between the separate groups of bonding sites, which effectively prevent a further spread of a flame front.

In this connection, the openings can then be distributed evenly or unevenly in the plane of the material layer. They can further have a uniform or an uneven contour. Rectangular, round, oval or openings with arbitrary angles are conceivable.

The breaches can be formed by perforation or by punching a continuous layer of material in the initial state.

The material particles that fall off can then be recycled in an advantageous manner for reuse.

It is previously possible for the breaks to be formed by strips of material applied regionally by a continuous material layer. Furthermore, it is possible that the openings are formed by intersecting strips of material. For example, when the carrier material is manufactured, these rollers can run from 25 transverse to the material layer already provided with the sealing compound, so that patterns are then formed, in which the material strips overlap in crosswise or at least approximate crosswise form and in this way open and unbroken surface parts are formed. .

Finally, an advantageous embodiment can also consist in that openings through transverse slots are formed with subsequent extension of a continuous material layer. The transverse slots are herein preferably arranged in series displacement with respect to each other. Their length depends on the dimensions of the openings desired during processing. They should definitely not run the full width of a material web. After the slots have been fitted, the entire track or the relevant part of the hand is extended. In doing so, the web narrows, respectively, the hand portion and the slots widen to breakthroughs. In this state, the 8007010 6 «. > The track or the part of the hand are connected to a continuous material layer.

The invention will be described in more detail below with reference to a drawing, in which exemplary embodiments are shown.

FIG. 1 is a large-scale perspective view of part of an insulating element in vertical section.

Fig. 2 shows on a smaller scale a longitudinal part of a broken material layer of an insulating element.

Fig. 3 again shows, on a smaller scale, a longitudinal part of a broken material layer according to another embodiment.

Figures 4 and 5 show, on a smaller scale, a top view of longitudinal parts of a transversely slotted material layer before and after the lengthening thereof.

The insulating element 1 shown in Fig. 1 consists of a three-layer support material 2 and an insulating material 3 * connected to this support material 2.

The carrier material 2 has a continuous outer layer 4 of an aluminum foil as well as a material layer 6 provided with openings 5, which also consists of an aluminum foil. Both aluminum foils 4> 6 are connected to each other by a sealing compound of polyethylene, which is applied continuously to the outer layer 4.

When the carrier material 2 is connected with the insulating material 3, for example consisting of rock wool, the carrier material 2 is heated to such an extent that the polyethylene 7 is plasticized and can then bond with the insulating material 3 in the region of the openings 5 · After cooling then adhere the insulating material 3 to the support material 2.

It can be seen from Fig. 2 that the openings 5 in the material layer 6 in contact with the insulating material 3 can be formed and grouped in different ways. Bat means separate openings 5a distributed over the surface can be present. Openings 5a may have an even or non-uniform contour. They can be distributed regularly or irregularly over the length of an insulating element 1 or be grouped together in groups 5h35.

As can be seen from Fig. 3, it is conceivable that the breakthroughs 5 can also be developed by placing material strips 8 crosswise. These material strips 8 then form the material layer 6.

8007010 7

Fig. 4 shows a material layer 6 which is provided with transverse slots 9 which have been moved in series relative to each other. To develop the openings, this material layer is then made longer or stretched, so that the slots 5 widen to openings 5c, but the material layer becomes narrower.

In all embodiments it is important that the distance between two adjacent individual openings 5> 5a, 5c and between adjacent opening groups (5b) is so great that these surface parts act as unambiguous flame barriers.

8007010

Claims (9)

1. Mat material for an insulating material of glass and / or mineral fibers that is water vapor-proof as well as in at least three layers and is connected to the insulating material to form an insulating element for sound and / or heat insulation, with the 5, note that one of the two outer layers (4, 6) of the support material (2) has openings (5, 5a> 55c) as bonding points between the insulating element (3) and an outer layer (6) which has been broken through on a continuous material layer (4) which has an adhering, also continuous layer (7) of a mass capable of sealing. 10 Bearing material according to claim 1, characterized in that the ratio of the broken surface parts (5, 5a, 5b, 5c) to the unbroken surface parts of the outer layer (6) is about 2 {8 to 8 i 2. Bearing material according to claims 1 or 2, characterized in that the openings (5b, 5c) are summarized in groups. Bearing material according to claim 1 or one or more of the following claims, characterized in that the openings (5 »5a, 5L> 5c) are distributed uniformly or unevenly. Bearing material according to claim 1 or one or more of the following claims, characterized in that the openings (5, 5a, 5 * >> 5c) have a uniform or non-uniform contour. Bearing material according to claim 1 or one or more of the following claims, characterized in that the openings (5, 5a, 5 "b) are formed by perforating or punching a continuous material layer. Bearing material according to one or more of claims 1 to 5, characterized in that the openings (5) are formed by material strips (8) arranged regionally on a continuous material layer. Bearing material according to one or more of claims 1 to 5 or 7, characterized in that the openings (5) are formed by intersecting material strips (8). 8007010 *. V Support material according to one or more of claims 1 to 5, characterized in that the openings (5c) are formed by providing transverse slots with the subsequent lengthening of a continuous material layer. --- oooOooo --- 8 0 0 7 0 10