DE102005059674B3 - Process for producing a firmly bonded composite panel with at least one plate of silicate glass or organic glass - Google Patents

Abstract

In a process for the production of a firmly bonded panel composite with two panels lying on top of one another and an intermediate fabric layer, the lateral edge areas of the fabric layer are first fixed and the lateral outer edges of the panels are sealed in a pressure-tight manner, then reaction resin is introduced into an upstream feed channel that communicates with the space in between and then pressure is applied to the outside of a plate, starting at the end face of the plate assembly facing the introduction channel and progressing in the direction of the exit end face.

Description

The The invention relates to a method for producing a solid glued plate composite, consisting of two superimposed Plates, of which at least one plate is designed as a glass plate, with one between the plates and with reaction resin soaked Fabric layer.

Known are so-called laminated safety glass panes, for example used in automobile construction as windscreens and two parallel, stacked individual glass panes with an intermediate consist thermoplastic film. These laminated safety glass panes are autoclaved under pressure and heat with preliminary evacuation of air with each other connected, wherein the film is designed as a melt resin film, which leads to the gluing of the glass panes. Advantageous in such Safety glass is that these under violence although break, but not in individual due to the intermediate film pieces disintegrated.

A method for producing a laminated glass pane is also in the DE 27 28 762 A1 described. In this method, a hardening plastic is introduced into the space between two individual panes, which is filled in a corner of the disc composite or possibly also at several filling points, wherein the air is discharged at an opposite corner or at several outlets.

These Leave a process for joining two individual panes of glass but do not apply to the case that as intermediate Able to use a dense fabric layer, creating desired optical Effects and aesthetic impressions high security at the same time. For fabric layers it is required, a liquid To introduce resin into the gap between the glass panes, a particular difficulty is the air bubble-free impregnation of the porous fabric layer represents. Furthermore Care must be taken that the fabric layer during insertion of the reaction resin is not compressed.

Of the Invention is based on the object, a plate composite with two superimposed plates, of which at least one formed as a glass plate is to create, and an intermediate fabric layer, wherein the Plates should be firmly connected to each other and the fabric layer evenly and should be embedded without air inclusion between the plates.

This Problem is inventively with the Characteristics of claim 1 solved. The dependent claims give expedient further education at.

at the novel process for producing a firmly bonded plate composite be first at least two lateral, opposite Edge regions of the fabric layer between the overlapping plates fixed and it is the plate gap to the assigned lateral outer edges sealed pressure-tight. Subsequently Reaction resin is closed in an upstream and pressure-tight Inlet channel, located in the region of one end face of the plate composite appropriate over the entire the width of the plates extends, introduced; the introduction channel is with the plate gap, in which the fabric layer was added is connected, so that the reaction resin from the introduction channel can flow into the space between the plates. The during the Injection of the liquid Reaction resin resulting hydraulic pressure pushes the Plate slightly apart and thereby allows the injection of the total amount of the reaction resin in the range the front of the plate.

After that will be on the outside a plate applied pressure, beginning at the introduction channel with the reaction resin facing the front side of the plate composite and progressing toward the opposite exit end face. At the Outlet end there is an open passage between the overlapping plates, so that this side at the front edge of the Plates is depressurized and so far spreading reaction resin on the Outflow pass can.

By means of this method a uniform spreading of the reaction resin is ensured while avoiding air inclusions in the intermediate space and in the fabric layer. The introduction channel is first completely filled with reaction resin, which is expediently injected under pressure into the introduction channel. Since the introduction channel is sealed pressure-tight and connected only to the space between the plates, the reaction resin spreads from the introduction channel into the space with the fabric layer therein. The direction of propagation is uniquely determined, since the lateral outer edges of the plates are sealed pressure-tight, for example by means of a sealing resin, and the plate gap is open only at the outlet end face. In order to prevent the fabric layer from being compressed by the incoming reaction resin or by the externally applied and advancing pressure, the fabric layer is fixed to the panels at its lateral edge regions. The fixing of the fabric layer is expediently carried out in a common working step with the pressure-tight sealing of the intermediate space The lateral outer edges of the plates by the lateral, reaching to the outer edge of the plates edge regions of the fabric layer are fixed by means of the sealing resin, which is also used for the pressure-tight sealing at the outer edges.

Of the on the outside at least one plate applied pressure perpendicular to the plate surface, the for example, by means of a roller roller is pressed the reaction resin from the introduction channel or from the introduction channel immediately adjacent, slightly curved edge areas of the plates towards the opposite Outlet end, due to the open passage between the plates is depressurized. The progressing toward the exit end face Supported printing the uniform spread of the reaction resin in the entire space between the plates. Furthermore Ensures that the air in the space and in the fibers displaced the fabric layer will and over escapes the open passage at the exit end face. As a result the gap and the fabric layer including all fibers and pores in the fabric layer completely filled by the reaction resin in the absence of trapped air. at Use of a clear reaction resin thus becomes a plate laminate achieved, with the fabric layer visible through the glass plate is, which makes special aesthetic impressions and optical effects can be achieved. At the same time the plates are unsolvable connected together and represents the intermediate fabric layer a reinforcement that provides stability and safety as one Laminated safety glass pane improved considerably.

When Reaction resins are useful completely clear Reaction resins used, for example, monomer-free polyaddition resins or monomer-free liquid Acrylic resins that do not dissolve the printing inks of the fabric layer and also cure largely shrinkage-free. Polyaddition resins can be special used in silicate glass, whereas acrylic resins (PMMA) in particular can be used in organic glass. To improve the flowability can the viscosity of the Reaction resin by solvent and / or warming be reduced, which in particular the spread in the Interspace with the fabric layer therein is improved. Because of the outside applied pressure no air bubbles trapped in the reaction resin are a perfectly clear and translucent bonding layer in the Plate clearance reaches the colors and patterns or other optical effects such as holography of the introduced for decoration Fabric layer in no way impaired. About the magnifying glass effect of the reaction resin can even cause an effect gain become.

The Method is suitable for connecting two plates, one of which at least one is designed as a glass plate. When using two glass plates will have a light transmission through the whole Plate composite achieved, which improves the aesthetic impressions become. As material for the glass plates come both inorganic silicate glass as well organic glass, for example, acrylic, PET, PS, PVC or similar. As a fabric layer can natural and synthetic materials, but also paper, Nonwovens or films, such as perforated films or knitted fabrics, for example, metal knitwear. The fabric layer should, however, for improved spread of the reaction resin provided with passages be advantageous in the propagation direction of the reaction resin, So extend in the plane of the fabric layer.

Advantageous is in the area of the outlet end face of the plate composite pressure-free collecting channel for excess and over the Exit end face exiting reaction resin provided. In this Receiving channel, the exiting reaction resin is added, wherein at the same time it is ensured that after releasing the pressure on the outside a plate and one of them possibly caused slight Raising the previously pressurized plate a certain amount on reaction resin from the collection channel back into the gap can flow back between the plates, without drawing in air. The negative pressure of the slightly rising, upper plate sucks the reaction resin from the collection channel again into the gap. Since the outlet end face completely with Reaction resin is covered by the collecting channel, is also at a backflow of the Resin is ensured in the space between the plates, that no inclusion of air bubbles he follows.

The introduction channel at the entrance end face of the plate assembly can be formed by a peripheral portion of the lower and upper plate, wherein in this peripheral portion no intermediate fabric layer is introduced, so that the injected reaction resin can propagate unhindered in the gap. The introduction channel expediently extends over the entire width of the plate composite, so that the reaction resin first spreads into the introduction channel in the injection channel and then flows into the intermediate space of the fabric layer, even before the application of pressure to the outside of the plate. Subsequently, it is expedient to apply pressure to the outside of the plate via a roller roller, starting in the region of the introduction channel and progressing into Direction outlet end.

Further Advantages and expedient designs are the further claims, the figure description and the drawings. Show it:

1 a plan view of a plate composite, consisting of two superimposed glass plates and an intermediate fabric layer,

2 a section according to section line II-II 1 .

3 a section according to section line III-III 1 ,

In the figures is a plate composite or laminate 1 represented, consisting of two superimposed glass plates 2 and 3 there is a gap between them 4 with a fabric layer received therein 5 is formed. The fabric layer 5 is made of synthetic or natural material, such as silk, in addition, however, also come into consideration other materials that allow spreading of liquid resins in the fabric plane, such as paper, nonwoven or perforated films of different materials, polyester, wool, cotton, fiberglass, lurex and more. The thickness of the fabric layer 5 is for example 0.3 mm, the height of the gap 4 Depending on the thickness of the fabric layer is typically between 0.1 and 0.5 mm. The thickness of the glass plates is for example 3 mm. As a material for the glass plates, both organic silicate glass and organic glass can be used. The glass plates can be clear or colored.

The connection between the glass plates 2 and 3 as well as the intermediate fabric layer 5 takes place with the aid of a liquid reaction resin, which is designed, for example, as a monomer-free polyaddition resin or acrylic resin which hardens substantially without shrinkage and does not dissolve the printing inks in the fabric layer.

The glass plates 2 and 3 are rectangular in plan view, wherein the lower glass plate 2 both slightly wider and longer than the upper glass plate 3 is. As a result, in both side areas each have a shoulder 6 between the top at the lateral edge of the lower glass plate 2 and the lateral outer edge 7 the upper glass plate 3 educated. In addition, there is in the longitudinal direction following the exit end face 11 the upper glass plate 3 one through the lower glass plate 2 formed supernatant, as a collecting channel 10 is being used. This collection channel 10 is from on the top of the plate of the lower plate 2 applied boundary walls 12 framed; the collecting channel 10 is open at the top. The gap 4 between the two glass plates 2 and 3 flows into the collecting channel 10 , for which a free passage in the area of the outlet end face 11 in the collecting channel 10 is formed into it.

In the area of the outlet end face opposite end face of the plate composite 1 is a delivery channel 9 provided, which is formed by that in the region of this introduction channel 9 the two glass plates 2 and 3 with the intermediate space 4 lie one above the other, but the fabric layer 5 not in this injection channel 9 extends into it. The fabric layer 5 extends only from the dashed line end edge 13 ( 1 ), which are at a distance from the frontal outer edge 14 the two glass plates is located, to the opposite outlet end face 11 the upper glass plate 3 , Accordingly, the introduction channel 9 between the frontal outer edge 14 and the front edge 13 the fabric layer 5 educated. The introduction channel 9 extends as well as the collection channel 10 over the entire width of the upper glass plate 3 and thus also the fabric layer 5 ,

The plate composite 1 is on three sides using a sealing resin 8th sealed pressure-tight. The sealing resin 8th extends in the area of the lateral outer edges 7 as well as the front edge 14 at the introduction channel 9 , The opposite outlet end face 11 is on the other hand open, so that on this front side of the gap 4 with the collecting channel 10 can communicate.

The method for assembling the panel composite 1 works as follows:
First, the fabric layer 5 on the lower glass plate 2 then put on the upper, slightly narrower glass plate 3 placed. The fabric layer is expedient 5 wider than the upper glass plate 3 chosen so that on the sides left and right of the edge area of the fabric layer on the shoulder 6 the lower glass plate 2 survives. This projecting edge area can then be exactly at the outer edge by means of a knife 7 the upper glass plate 3 be separated.

The plate composite 1 is done on three sides using the sealing resin 8th sealed pressure-tight, only the opposite outlet end face 11 stays open.

Over a gate 15 in the upper glass plate 3 at the level of the introduction channel 9 is introduced, liquid and preheated reaction resin in the introduction channel 9 injected, in which the reaction resin completely spreads. Since the introduction channel 9 across the width of the Plate composite extends and with the gap 4 In conjunction, the reaction resin spreads evenly into the gap 4 with the fabric layer 5 out. However, the pressure under which the reaction resin in the arrow direction is sufficient 16 ( 2 ) over the gate 15 is injected, and the diffusion forces in the tissue layer 5 not sufficient to allow propagation throughout the gap. Therefore, after a sufficient amount of reaction resin is injected and the sprue opening 15 was sealed pressure-tight, as in 2 indicated by means of a roller roller 17 Pressure on the outside of the upper glass plate 3 applied, vertical to the plate surface. The pressure over the roller roller 17 is initially in the amount of the introduction channel 9 on the outside of the glass plate 3 applied. From the injection channel 9 starting from the roller 17 in the direction of the arrow 18 progress - or is the plate composite 1 pulled in the opposite direction under the roller - until the entire top of the glass plate 3 from the pressure of the roller 17 until reaching the outlet end face 11 was charged. The pressure over the roller 17 causes the two glass plates to approach and the gap 4 is slightly compressed, whereby on the one pressed air bubbles out of the reaction resin and on the other hand, the reaction resin from the introduction channel 9 starting in the direction of the outlet end face 11 is pressed. As at the outlet end 11 a passage to the collecting channel 10 exists and the collection channel 10 pressure-free, can excess reaction resin in the collecting channel 10 flow.

After the pressure of the roller 17 has been lifted, the glass plates may slightly diverge, creating a negative pressure, which has the consequence that in the collecting channel 10 residing reaction resin back into the gap 4 is sucked in. As long as the level of the reaction resin in the collecting channel 10 the free passage to the gap 4 There is no risk that air bubbles will be sucked into the gap.

After the reaction resin in the entire space 4 was distributed by applying the pressure, the plate composite 1 placed in a heating oven where the reaction resin cures. After curing, the plate composite 1 be tailored, in particular the edge regions with the introduction channel 9 , the collection channel 10 as well as the side area with the sealing resin 8th can be removed. The remaining plate composite is permanently bonded together, due to the clarity of the reaction resin, the structure and color of the space in the space 4 located fabric layer 5 can be seen from both sides of the plate.

Claims (18)

Process for producing a firmly bonded composite panel consisting of two superimposed panels ( 2 . 3 ), of which at least one plate ( 2 . 3 ) is designed as a glass plate, and one between the plates ( 2 . 3 ) lying tissue layer ( 5 ), with the following process steps: a) placing the fabric layer ( 5 ) on the lower plate ( 2 ) and placing the upper plate ( 3 ) on the fabric layer ( 5 b) fixing at least two lateral edge regions of the fabric layer ( 5 ) between the successive plates ( 2 . 3 ) and pressure-tight sealing of the gap ( 4 ) at the associated lateral outer edges ( 7 ) of the plates ( 2 . 3 c) injecting the reaction resin into an upstream and pressure-tight closed injection channel ( 9 ), which is located in the region of one end face of the panel composite ( 1 ) across the width of the plates ( 2 . 3 ) and with which the fabric layer ( 5 ) receiving space ( 4 ) between the plates ( 2 . 3 d) applying pressure to the outside of a plate ( 3 ), wherein the pressure first at the the introduction channel ( 9 ) facing end face of the plate composite ( 1 ) is applied and then in the direction of the opposite outlet end face ( 11 ), so that the space between the plates ( 2 . 3 ) and the fabric layer ( 5 ) are filled evenly by the reaction resin and air and excess reaction resin via the at least partially open passage of the stacked plates ( 2 . 3 ) at the exit end face ( 11 ), e) curing the reaction resin. Method according to claim 1, characterized in that in that a polyaddition resin is used as the reaction resin, in particular a monomer-free polyaddition resin. Method according to claim 1 or 2, characterized in that an acrylic resin is used as the reaction resin, in particular a monomer-free acrylic resin. Method according to one of claims 1 to 3, characterized in that the introduction channel ( 9 ) by a peripheral portion of the plate composite ( 1 ) with lower and upper plate ( 2 . 3 ) without intermediate fabric layer ( 5 ) is formed, wherein the outer edge ( 14 ) of the introduction channel is sealed pressure-tight. Method according to one of claims 1 to 4, characterized in that at the outlet end face ( 11 ) of the plate composite ( 1 ) a pressure-free collecting channel ( 10 ) for excess and over the outlet end face ( 11 ) exiting reaction resin is provided. Method according to claim 5, characterized in that the collecting channel ( 10 ) over the entire width of the outlet end face ( 11 ). Method according to claim 5 or 6, characterized in that the collecting channel ( 10 ) is formed by the lower plate ( 2 ) the front edge of the upper plate ( 3 ) and the projecting portion of the lower plate ( 2 ) of boundary walls ( 12 ) is enclosed. Method according to one of claims 5 to 7, characterized in that after curing of the reaction resin of the collecting channel ( 10 ) is separated. Method according to one of claims 1 to 8, characterized in that after curing of the reaction resin of the introduction channel ( 9 ) is separated. Method according to one of claims 1 to 9, characterized in that after curing of the reaction resin, a lateral projecting shoulder ( 6 ) of the lower plate ( 2 ) is separated. Method according to one of claims 1 to 10, characterized in that following the application of the pressure to the outside of at least one plate ( 3 ) the reaction resin in the composite plate ( 1 ) Cures under heat. Method according to one of claims 1 to 11, characterized in that the reaction resin via a gate ( 15 ) into the introduction channel ( 9 ) is injected. Method according to one of claims 1 to 12, characterized in that the reaction resin prior to introduction into the introduction channel ( 9 ) is heated. Method according to one of claims 1 to 13, characterized in that the pressure by means of a roller ( 17 ) on the outside of the plate ( 3 ) is applied. Method according to one of claims 1 to 14, characterized in that as a fabric layer ( 5 ) a fabric layer is used. Method according to one of claims 1 to 15, characterized in that as a glass plate ( 2 . 3 ) An inorganic silicate glass plate is used. Method according to one of claims 1 to 16, characterized in that the glass plate ( 2 . 3 ) consists of organic glass. Method according to one of claims 1 to 17, characterized in that for sealing the outer edges ( 7 . 14 ) of the plate composite ( 1 ) a sealing resin is used.