EP3507089A1

EP3507089A1 - Laminated pane, method for the production thereof, and use thereof

Info

Publication number: EP3507089A1
Application number: EP17751368.6A
Authority: EP
Inventors: Marcus Neander; Manfred Gillissen; Walter Schreiber; Francis SERRUYS
Original assignee: Saint Gobain Glass France SAS; Compagnie de Saint Gobain SA
Current assignee: Saint Gobain Glass France SAS
Priority date: 2016-08-30
Filing date: 2017-08-07
Publication date: 2019-07-10
Also published as: WO2018041539A1; US20190111664A1

Abstract

The invention relates to a laminated pane (1) comprising two main surfaces (2.1a) and (2.1b) and a surrounding edge surface (2.2), including the following, arranged on top of one another in the specified order and adhesively connected to one another: a transparent glass pane (2.3); a transparent adhesion-promoting layer (2.4); an opaque or translucent stone layer (2.5); and an all-around sealing (3) of the surrounding edge surface (2.2), characterised in that the all-around sealing (3) has at least two polymer layers (3.1, 3.2) of different materials, wherein one polymer layer (3.1) of the two polymer layers (3.1) is an adhesive film which engages in pores and/or cracks of the stone layer (2.5) at its boundary layer, and the other polymer layer (3.2) of the two polymer layers (3.1, 3.2) is a barrier film which forms a fluid barrier. The invention also relates to a method for producing the laminated pane (1) and to the use thereof.

Description

Laminated composite, process for its production and its use

Description:

The invention relates to a laminated composite, a process for its preparation and its use.

From the German patent application DE102008052066A1 an article is known which comprises a disk-shaped composite material with two main surfaces and a

Contains circumferential edge surface. The disk-shaped composite material comprises one another in the stated sequence one above the other and adhesively bonded to one another, a first mechanically stable, transparent layer, a first transparent, tear-resistant, adhesion-promoting layer, an essentially opaque or translucent stone layer substantially free of volatile compounds, or a second transparent layer , tear-resistant, adhesion-promoting layer and a second mechanically stable, transparent layer, as well as an all-round sealing of the peripheral edge surface containing a cured cast resin or a tear-resistant adhesive film. The tear resistant adhesive film is preferably polyvinyl butyral, PVB (polyvinyl butyral), polyethylene vinyl acetate, EVA (ethylene vinyl acetate), polyethylene terephthalate, PET

(Polyethylene terephthalate), polyvinyl chloride, PVC (polyvinyl chloride), lonomerharz based on ethylene and / or propylene and alpha, beta-unsaturated carboxylic acids or polyurethane, PU (polyurethane) and preferably contains at least one filler. The all-round seal is applied in a separate thermal process step and is discolored by the occurring temperature influence brownish black. Due to this effect, no unlimited applicability of the disc composite is possible. US 2006/0105121 A1 describes a multi-pane laminated glass with bulletproof glass function, which lies above one another in the stated sequence and adheres firmly together:

- coat layer,

- Polyurethane layer,

- polycarbonate layer,

- Polyurethane layer,

- laminated glass, Polyvinyl butyral or polyurethane layer,

- laminated glass,

Polyvinyl butyral or polyurethane layer,

- Offset layer, and

an all-edge seal having a polyurethane layer and a polyethylene terephthalate layer.

The present invention was based on the object to provide a disc composite that offers more universal applications, and is easier and thus cheaper to produce.

The objects of the present invention are achieved by a laminated pane according to claim 1, a method according to claim 9 and a use according to claim 12. Preferred embodiments will become apparent from the dependent claims.

The disc composite according to the invention with two main surfaces and a peripheral edge surface contains one above the other lying in the specified order and adhesively bonded together,

- a transparent glass pane,

a transparent adhesion promoter layer,

- an opaque or translucent stone layer and

a circumferential seal of the peripheral edge surface comprising at least two polymer layers of different materials, one polymer layer of the two polymer layers being an adhesive film engaging at its boundary layer in pores and / or cracks of the stone layer, and the other polymer layer of the two polymer layers forming a barrier film is that forms a liquid barrier.

In view of the prior art, it was surprising that the disc composite according to the invention, which can be produced in a simple manner, has an optically neutral all-round seal. Furthermore, if used, it is at least one

If desired colored polymer layer possible to provide the all-round seal with a desired color. The coloring by using at least one colored polymer layer also provides an optically neutral

All-round sealing is because the all-round seal according to the wishes of the user or manufacturer is adjustable and thus fits harmoniously into its environment with its adjustable appearance desired. The composite pane according to the invention contains a translucent or opaque

Stone layer. The laminated composite is preferably also translucent or opaque. Preferably, the stone layer of the disc composite according to the invention is translucent.

In contrast to transparency, one can describe translucency as translucency and transparency as visual or visual transparency. The reciprocal property of translucency is opacity. If an object has a high transparency, it has a low opacity and vice versa.

The laminated pane according to the invention can, beyond its two main surfaces and its peripheral edge surface, further functional components such as

Fasteners, spacers, electrical cables, functional

Layers, such as protective layers or sound-absorbing layers, or glass panes are included or connected thereto. In addition, it can contain recesses and / or bores that can serve decorative purposes and / or the inclusion and / or attachment of functional components. The composite pane comprises a disc-shaped composite material which, in the stated sequence, has one transparent glass pane, one transparent adhesion promoter layer and an opaque or translucent stone layer lying one above the other and adhesively bonded to one another, and the peripheral edge area has the all-round seal. The term "disk-shaped" means that the

Main surfaces of the composite material or the disc composite have a larger area than the peripheral edge surface. Preferably, the ratio of the area of a main surface to the surface of the peripheral edge surface is> 1, preferably> 2 and in particular> 3. The laminated composite is preferably approximated or within the scope of

Measuring accuracy exactly planar. The term "approximately planar" in the present invention means that the composite material is bent in one direction or in several directions of the space in the per thousand range or by a few percent, whereby the bending must not be so strong that the stability limit of the stone layer is exceeded the stone layer breaks or breaks. The disk composite can have any outline. So the outline can be angular and / or rounded. Examples of square shapes are squares, rectangles, diamonds, triangles, pentagons, hexagons or stars. Examples of rounded shapes are circles or ellipses. In this case, the individual elements of these shapes can also be combined with one another, so that, for example, quadrangular or circular, disk-shaped composite materials result whose edge describes a wavy line. The shapes described above define the shapes of the

Compound according to the invention substantially or exactly fixed. In a preferred embodiment, the composite pane is translucent and consists of or contains

a first mechanically stable transparent glass pane,

a first transparent adhesion promoter layer,

- a translucent stone layer,

which lie one above the other in the specified order and are firmly bonded together. Here, the term "mechanically stable" means that the layer is not damaged within wide temperature limits even when exposed to mechanical forces, such as those caused by prolonged pressure, by short hard impacts or by friction, but preserves their integrity and shape ,

The term "transparent" in the present invention means that the relevant layer is permeable to images or to see through it, which is the case in particular when the visible light layer in question has a transmission of> 50%, preferably> 70% and in particular> 80 % having.

The essential component of the laminated pane according to the invention is the

All-around seal that fully covers and adheres to the peripheral edge surface, has or consists of two polymer layers of different materials. A polymer layer of the two polymer layers is one

Adhesive film which intervenes at its boundary layer, microscopically, in pores and / or cracks of the stone layer, and the other polymer layer of the two

Polymer layers a barrier film that forms a liquid barrier. As a result, in particular, the stone layer at least partially or completely before

Protected against environmental influences and it is ensured that the all-round seal adheres to the long-term composite disc material. A material of the adhesive film is preferably selected from PU (polyurethane) and / or EVA (ethylene vinyl acetate). A material of the barrier film is preferably PET (polyethylene terephthalate). The PU used as the adhesive film is more preferably a TPU (thermoplastic polyurethane).

Preferably, the all-around seal has the same thickness throughout. The thickness of the all-round seal can vary widely from case to case and can thus be adapted to the requirements of the individual case in an optimized manner. Preferably, a layer thickness of the barrier film is in the range of 0.05 to 0.20 mm, preferably 0.08 to 0.17 mm, more preferably 0.12 to 0.18 mm. A layer thickness of the adhesive film is preferably in the range of 0.36 to 1, 25 mm, preferably 0.5 to 1, 1 mm, more preferably 0.7 to 0.9 mm.

A width of the all-round seal is or preferably substantially equal to the thickness of the disk-shaped composite material, which is formed from the layer thickness of the superposed adhesively bonded glass, primer and stone layers. A length of the all-round seal is or preferably corresponds substantially to the circumference of the disk-shaped composite material which, for example in the case of a polygon, results from the sum of the side lengths or, in the case of a circle, can be calculated from a diameter or radius of the circle. The peripheral edge surface is therefore preferably completely or substantially completely provided with the all-round seal or covered by it.

Preferably, the barrier film has a coating. Alternatively or additionally, the barrier film may contain a dye. Further alternatively or additionally, the barrier film may have a printing. By means of the dye or the printing on the laminated pane a desired color or patterning can be achieved. The coating is preferably designed as a barrier coating, which forms a liquid preferably water barrier. Suitable coating materials are, for example, silicon dioxide, silicon nitride and / or titanium oxide. The coating can continue to protect the composite pane against environmental influences.

Preferably, the two polymer layers are transparent. In this case, the color and the structure of the stone layer are visible up to the edge of the disk composite. The polymer layers of the all-round seal are preferably tear-resistant. Furthermore, at least one of the polymer layers of the all-round seal preferably contains at least one filler. Suitable fillers are all customary and better known organic and inorganic fillers according to DIN 55943: 1993-1 1 and DIN EN 971-1: 1996-09. The content of the all-around sealant on filler can vary widely and thus be adapted to the requirements of the individual case. Preferably, the content is from 5 to 50 wt .-%, preferably 7.5 to 45 wt .-%, particularly preferably 10 to 40 wt .-% and in particular 12.5 to 35 wt .-%, each based on the total amount the all-round seal.

If necessary, the disc composite preferably has further layers. Preferably, on the side facing away from the transparent adhesion promoter layer side of the translucent or opaque stone layer is a further transparent

Adhesive layer arranged and on the side facing away from the translucent or opaque stone layer side of the transparent adhesive layer another transparent glass pane. Alternatively preferably, a seal is arranged on the side of the translucent or opaque stone layer facing away from the transparent adhesion promoter layer, if required. The seal is preferably applied directly to the stone layer. But also an indirect seal over a mediating layer between stone layer and seal is possible. The seal is functionally defined in particular by its impermeability to moisture.

The further transparent adhesion promoter layer is preferably tear-resistant. The

transparent adhesion promoter layer and the further transparent adhesion promoter layer may be the same or different, that is, they may be composed of the same materials or of different materials and / or have different thicknesses. Here too, the thicknesses can vary widely and thus be adapted to the requirements of the individual case. The adhesion promoter layers are preferably in each case 0.4 to 10 mm, preferably 0.5 to 8 mm, particularly preferably 0.6 to 6 mm and in particular 0.7 to 4 mm thick. When two adhesion promoter layers are used, they preferably have an equal thickness.

Preferably, the further transparent glass pane is mechanically stable.

In principle, the transparent glass pane and, in the case of a double structure with two glass panes, the further transparent glass pane can be the same or different from one another be different, that is, they may be constructed of the same materials or of different materials and / or have different thicknesses. The thicknesses can vary widely and be adapted to the requirements of the case. The layers are preferably 2 to 50 mm, preferably 2 to 40 mm, particularly preferably 2 to 30 mm and in particular 2 to 25 mm thick.

Furthermore, at least one of the adhesion promoter, glass and / or stone layers of the composite pane of at least two layers of at least two

consist of different materials. Essential for the selection of the materials is that the layer in question requires the above-described

Has property profile. In particular, the at least two layers must be permanently adhered to each other and to the adjacent layers.

As materials for the production of the transparent glass pane and possibly the further glass pane are basically all materials into consideration, which have the required property profile described above. Preferably, the

Materials selected from the group consisting of colored and uncolored glasses, colored and uncolored, rigid, clear plastics provided with a barrier to vapor diffusion. However, colored and uncolored glasses are preferably selected.

Preferably, the colored and uncolored glass is selected from the group consisting of colored and undyed, non-tempered, partially tempered and

prestressed float glass, cast glass, ceramic glass and glass. Float glass is particularly preferred.

As materials for the preparation of the primer layer and possibly further

Bonding agent layer are basically all materials into consideration, which have the required property profile described above. Preferably, the material is selected from the group consisting of thermally and / or actinic radiation cured cast resins and tear resistant adhesive sheets.

As is known, thermally cured cast resins are made from thermosetting cast resins containing complementary reactive functional groups that react with each other under the action of heat energy to form a three-dimensional network in the cured cast resin. Examples of suitable thermally curable casting resins are epoxy resins. It is known to be with actinic radiation cured casting resins prepared from casting resins which contain reactive functional groups which polymerize under the action of actinic radiation anionic, cationic or free-radical, in particular free-radical.

In particular, the reactive functional groups are olefinically unsaturated double bonds. As actinic radiation is electromagnetic radiation, such as near infrared (NIR), visible light, UV radiation, X-rays and gamma rays, or corpuscular radiation, such as electron radiation,

Proton radiation, beta radiation or alpha radiation, into consideration. The casting resins may contain customary and known adhesion promoters, as described, for example, in European patent application EP0799949A1, column 6, lines 24 to 32. Preferably, the tear-resistant adhesive sheets are selected from the group consisting of polyvinyl butyral, PVB, polyethylene-vinyl acetate, EVA,

Polyethylene terephthalate, PET, polyvinyl chloride, PVC, ionomer resins based on ethylene and / or propylene and alpha, beta-unsaturated carboxylic acids or

Polyurethane, PU, selected. In particular, polyurethane films are used.

As materials for the production of the translucent or opaque stone layer are basically all types of natural stones and artificial stones into consideration, which can be produced in thin layers. The thickness of the stone layer can be varied widely and adapted to the requirements of the case. The thickness depends in particular on the desired transparency or opacity, the

mechanical stability and the morphology of the stone. Preferably, the thickness is 1 to 20 millimeters, preferably 1, 5 to 15 mm and in particular 2 to 10 mm.

Examples of particularly well-suited natural stones are granite, gneiss, limestones, crystalline marble, onyx and semi-precious stones. As already mentioned above, the stone layer may also consist of at least two layers which are adhesively bonded together. For this purpose, the transparent adhesive layers described above can be used. In this embodiment, the disc composite on two optically different sides, which provides additional design options in the context of the inventive use. For reasons of ease of manufacture and handling but single-layer stone layers are preferably used. In addition, the stone layer can be off

be composed of different stones, so that there is an ornamental or mosaic-like structure in the surface. Preferably, the individual stone parts are adherent to each other. Preferably, the translucent or opaque stone layer is substantially or completely free of volatile compounds, the term "volatile" in the context of the present invention means that the compound in question already at comparatively low temperatures, for example temperatures <150 ° C, a comparatively high vapor pressure, The volatile compounds may be liquid, solid and gaseous inorganic and organic compounds at room temperature, the volatile compounds may be natural constituents of the bricks, decomposition products of constituents and / or residues and / or decomposition products of processing aids, the at the

Production of artificial stones or when cutting, grinding and polishing the stones are commonly used. Examples of such volatile compounds are carbon dioxide, hydrogen sulfide, ammonia, carbonates, sulfides, organic and inorganic acids, organic solvents, monomers or water. Mainly the volatile compound is water.

In the context of the present invention, the expression "substantially free" means that the translucent or opaque stone layer has such a low content of volatile compounds that only a slight dynamic pressure builds up in the inventive use of the pane composite according to the invention, which also long-term the pane composite can no longer harm for many years.

If the volatile compound is water, the water content of the translucent or opaque stone layer, based on its total amount, is preferably <1% by weight, preferably <0.5% by weight and in particular <0.1% by weight. %.

The term "completely free" in the context of the invention means that the content of the translucent or opaque stone layer of volatile compounds is so low that its detection limit is undershot.

Due to its structure, the disc composite has a peripheral edge surface, the contour of which can vary both from composite material to composite material and in one and the same composite material in partial areas of the overall circumference. Thus, the circumferential edge surface, seen in cross-section, each form an angle of 90 ° with the two main surfaces at least in a part of their total circumference. But it can also be chamfered at least in part of the total circumference, so that, viewed in cross-section, it forms an angle of> 90 ° with one main surface and an angle of <90 ° with the other main surface. However, it can also have a round or angular, convex or concave contour, at least in part of the total circumference, seen in cross-section.

Preferably, the peripheral edge surface in each case forms an angle of 90 ° with the two main surfaces in its entire circumference.

The laminated pane according to the invention can be produced in a manner known per se. Preferably, however, it is produced by means of the method according to the invention.

The invention relates to a method for producing a disk composite described above, in which

(I) a stone layer is adhesively bonded to a transparent glass sheet via a transparent adhesive layer, and

(II) the peripheral edge surface is sealed with an all-around seal having at least two polymer layers of different materials. Preferably, the process steps (I) and (II) are simultaneously under

Heat treatment performed. This simplifies the production, because laminating and sealing is produced in a single process step both in the surface and along the edges of the composite pane. Furthermore, the suitable choice of the polymer layer system for edge sealing has the advantage that in a single process step an optically neutral edge

provided.

For example, the laminated composite is produced by means of a temperature process in an autoclave. The process steps (I) and (II) are preferably carried out without pressure.

Preferably, the stone layer in method step (I) is further adhesively bonded via a further transparent adhesion promoter layer to a further transparent glass pane on the side facing away from the adhesion promoter layer. Alternatively, preferably, the stone layer in method step (I) is further sealed by means of a side facing away from the adhesion promoter layer side. For the process according to the invention, a translucent or opaque stone layer in the desired thickness is prepared in a conventional manner, for example by means of the process known from US Pat. No. 4,177,789. Preferably, the translucent stone layer is connected for further processing with a temporary support from which it can easily be peeled off again.

Before the first method step of the method according to the invention is carried out, the translucent or opaque stone layer can still be ground, polished and / or freed from adhering impurities, in particular processing aids.

As part of a pretreatment to the process according to the invention, the translucent or opaque stone layer can be substantially or completely freed from the volatile compounds described above. This can be done using chemical and / or physical, especially physical, methods. The selected conditions are based primarily on the content of the translucent or opaque stone layer of volatile compounds and their material

Composition and its morphology.

Preferably, the translucent or opaque stone layer is heated for this purpose in a dry atmosphere or in a vacuum, preferably in a dry atmosphere. In this case, the heat energy can be supplied by gaseous media, preferably the dry atmosphere itself, heating plates, heating rollers and / or radiant heaters. Preferably, the translucent or opaque stone layer is heated until the desired maximum material temperature is reached. Preferably, the maximum material temperature is> 100 ° C. Preferably, it should not exceed 200 ° C, preferably 180 ° C and especially 160 ° C. The heating of the translucent or opaque stone layer can be done by rapidly mixing them with the above-described heat sources, the maximum

Have material temperature, heated. Preferably, however, the translucent or opaque stone layer is gradually heated over a longer period of time, for example by a rampwise or stepwise increase in the temperature. It is essential here that the time for the heating is set such that no thermal stresses arise in the translucent or opaque stone layer. After the desired maximum material temperature is reached, the

translucent or opaque stone layer for a long time, preferably for 30 minutes to 24 hours, preferably 1 to 12 hours and especially 2 to 6 hours held at this temperature.

Subsequently, the translucent or opaque stone layer is cooled. Again, it is essential that the time for cooling is set so that no thermal stresses arise in the translucent or opaque stone layer. Preferably, the translucent or opaque stone layer is gradually cooled, preferably by a ramp-wise or stepwise lowering of its temperature. The refrigerant used is preferably a dry gaseous medium, the temperature of which is lowered in the appropriate manner. Here and in the following

Process steps must be taken to ensure, for example, by working under a dried and purified atmosphere, that the volatiles-free, translucent or opaque stone layer does not resorb volatile compounds, especially water.

In process step (I) of the process according to the invention, the translucent or opaque stone layer is coated on one or both sides via one of those described above

Bonding agent layers adhesively bonded to one of the glass sheets described above. If the adhesion promoter layers are produced from a casting resin which is curable thermally and / or with actinic radiation, the casting resin can be applied bead-like at one end of a glass pane over its width. Subsequently, the glass sheet is placed with this area on the stone layer, after which it conforms to the surface of the stone layer, whereby it displaces the cast resin by degassing by its own weight. However, the casting resin can also be applied in the central region of the stone layer, after which a convexly curved, mechanically stable, transparent layer is placed on the casting resin and then relaxed, so that the casting resin is distributed evenly on the stone layer by the applied layer. Thereafter, the resulting cast resin layer is cured thermally and / or with actinic radiation. Then, if necessary, the

disk-shaped laminate of stone layer, adhesive layer and glass sheet turned to the other side, and if necessary, the free side of the stone layer can be provided with further adhesive and glass panes in the same manner as described above or a seal. If the adhesion promoter layers are produced from the above-described adhesive films, all layers of the composite pane are placed precisely on top of each other. Subsequently, the air between the layers in a suitable

Device, for example, in a vacuum bag, removed by applying a vacuum, wherein the external air pressure of 100 kPa compresses the layers. Preferably, this process step is carried out at a temperature> 50 ° C. Subsequently, the resulting composite material can be aftertreated even at temperatures up to 150 ° C at a uniformly acting pressure> 100 kPa, for example in an autoclave. The superimposed layers can also be prelaminated at a temperature> 50 ° C, for example 70 ° C, and a pressure> 100 kPa, for example 700 kPa, after which the layers of the resulting precompound at a uniformly acting pressure> 100 kPa, for example 1 .200 kPa, and at a temperature> 100 ° C, for example 135 ° C, in one

Autoclave adherent to each other.

Preferably, the adhesion promoter layers of tear-resistant, transparent

Adhesive films produced. The peripheral edge surface of the resulting disk-shaped composite material is provided in step (II) with the all-round seal. The wrap-around seal is made from the materials described above.

Preferably, the polymer layers are made in the desired thicknesses. The polymer layers are adhesively bonded to the edge surface either singly or together in the form of a band having a width at least equal to the width of the peripheral edge surface.

Preferably, these polymer layers are laminated together with glass sheet and stone layer in a common process step. Optionally, excess circumferential sealant material that extends beyond the level of one or both major surfaces may then be removed.

The laminated pane according to the invention, in particular the pane composite produced by means of the method according to the invention described above, has particular advantages and can therefore be used in many different ways.

He is particularly well in the context of the use of the invention as novel purely decorative and / or decorative-architectural object and / or use as a novel purely decorative and decorative or architectural component for indoor and outdoor use. Or it may be used for the manufacture of such a new article or component. If the stone layer is exposed in the composite pane, the composite pane is preferably suitable for indoor use. If the stone layer is covered on both sides, the disc composite for indoor and outdoor

Outdoor applications. By the term decorative-architectural is meant that the object or the component in addition to a decorative effect also fulfills a structural or functional property in or on a building section.

Examples of such new items and new components are purely decorative or decorative-architectural components for the interior and exterior, in particular interior or exterior cladding of buildings such as external facades or interior walls. But also as cladding for door leaves, cover for lights, load-bearing furniture components such as table tops or countertops, for example in kitchens, component for roofing or screening element for railings, the disc composite according to the invention or the disc composite produced by the inventive method can be used.

Exemplary embodiments of the laminated pane according to the invention will be explained below by way of example with reference to the following figures. The schematic

Representations are not to scale. The illustrated proportions therefore do not correspond to those in the practice of the invention in practice

applied proportions. Show it:

Fig. 1 is a schematic cross-sectional view of an inventive

Disc composite according to a first embodiment;

Fig. 2 is a schematic cross-sectional view of an inventive

Disc composite according to a second embodiment;

Fig. 3 is a schematic cross-sectional view of an inventive

Disc composite according to a third embodiment; and Fig. 4 is a schematic cross-sectional view of an inventive

Laminated composite in the form of a Mehrfachisolierglases, the one

Disc composite according to the figures 1 to 3 contains. Fig. 1 shows a schematic cross-sectional view of an inventive

Disc composite according to a first embodiment.

In a preferred, not limiting the invention first embodiment of the disc assembly according to the invention 1 according to FIG. 1 is

for example, a decorative translucent lining for an inner wall.

The disc composite 1 comprises a disc-shaped composite material 2 with two main surfaces 2.1 a and 2.1 b and a peripheral edge surface 2.2 forming the edge of the disc composite 1, which is covered by an all-round seal 3. Possibly. contains the disc assembly 1 nor brackets with which it can be arranged on the inner wall. The brackets are not shown for clarity.

The composite material 2 contains, in the stated sequence, one above the other and adhesively bonded together, a transparent glass pane 2.3, a transparent adhesion promoter layer 2.4 and a translucent or opaque stone layer 2.5. The all-round seal 3 of the peripheral edge surface 2.2 has a

Polymer layer 3.1 in the form of an adhesive film and a further polymer layer 3.2 in the form of a liquid barrier barrier film.

The transparent glass pane 2.3 is a transparent one

Glass pane of dimensions 300 mm 300mm, a thickness of 4 mm and a transmission for visible light of 90%. The outer surface of the transparent glass pane 2.3 forms the main surface 2.1 a, while the outer surface of the translucent or opaque stone layer 2.5 forms the other main surface 2.1 b.

The translucent or opaque stone layer 2.5 is this

Embodiment around a 5 mm thick translucent marble disc, which has the same dimensions as the transparent glass 2.3. The translucent stone layer 2.5 is completely free of volatile compounds. In particular, it is free of water. It is on the transparent adhesive layer 2.4 with the transparent Glass pane 2.3 connected. The transparent primer layer 2.4 is a 0.8 mm thick adhesive film of polyurethane with the same

Dimensions such as the translucent stone layer 2.5 and the transparent glass 2.3.

The disc-shaped, translucent composite material 2 of the disc composite 1 is thus a total of 9.8 mm thick, which corresponds exactly to the width of the peripheral edge surface 2.2. Its length is 1 .200 mm and its total area is 0.01 176 m ² . The ratio of the area of a main surface 2.1 a or 2.1 b to the surface of the peripheral edge surface 2.2 is therefore approximately 8: 1. Seen in cross-section, the peripheral edge surface 2.2 forms with both main surfaces 2.1 a and 2.1 b in each case an angle of 90 °.

The peripheral edge surface 2.2 is covered with the all-round seal 3, which consists of a 0.8 mm thick band of a connected to the peripheral edge surface 2.2 polymer layer 3.1 of EVA and on the side facing away from the edge surface 2.2 side of the polymer layer 3.1 further polymer layer 3.2 is formed from PET.

The laminated composite 1 is produced by first subjecting the translucent stone layer 2.5 to a pretreatment. The translucent stone layer 2.5 of dimensions 300 mm 300 mm 5 mm is polished on its surfaces.

Subsequently, any solid residues resulting from the polishing are removed with compressed air. Thereafter, the translucent stone layer 2.5 is rinsed with deionized water and pre-dried. The pre-dried, translucent stone layer 2.5 is in a convection oven, which is operated with purified and dried air, at a maximum material temperature of 140 ° C of volatile compounds, especially water, free. Subsequently, the volatile compounds free, translucent stone layer 2.5 is gradually cooled to room temperature.

Thereafter, in the order given, the polished, cleaned and

dried transparent glass 2.3 of the dimensions 300 mm ^χ 300 mm ^χ 4 mm, the transparent adhesion promoter layer 2.4 of the dimensions 300 mm ^χ 300 mm ^χ 0.8 mm and the translucent stone layer 2.5, which is free from volatile compounds, placed one on top of the other. Subsequently, the peripheral edge surface 2.2 of the resulting,

disc-shaped, translucent composite material 2 with a band having a width of 9.8 mm from the polymer layer 3.1 of EVA and the other polymer layer 3.2 made of PET, so that the peripheral edge surface 2.2 is completely covered by the all-round seal 3. The glass layer layered with the stone layer and the edge-sealing polymer layers 3.1, 3.2 are adhesively bonded together by means of a heat-pressure treatment at 100 ° C. in an autoclave. In a single step, the layers are laminated while their edges are sealed.

The disc composite 1 is of high mechanical stability and has a

excellent intercoat adhesion. It is therefore very well suited in particular as an interior wall paneling. Fig. 2 shows a schematic cross-sectional view of an inventive

Disc composite according to a second embodiment. The laminated composite 1 shown in FIG. 2 corresponds to the composite pane 1 shown in FIG. 1, with the difference that on the side of the translucent stone layer 2. 5 facing away from the transparent adhesion promoter layer 2. 2 a further transparent adhesion promoter layer 2. 2 is arranged and facing away from the stone layer 2 Side of

Adhesive layer 2.4 a further transparent glass pane 2.7 is arranged so that an outer surface of the transparent glass pane 2.7 instead of the outer surface of the translucent stone layer 2.5, the main surface forms 2.1 b. The further transparent glass pane 2.7 is a further transparent glass pane with the dimensions 300 mm ^χ 300 mm, a thickness of 4 mm and a transmission for visible light of 90%.

The further transparent adhesion promoter layer 2.6 is a 0.8 mm thick adhesive film of polyurethane with the same dimensions as the

translucent stone layer 2.5, the transparent adhesion promoter layer 2.4 and the transparent glass panes 2.3 and 2.7.

The disc-shaped, translucent composite material 2 of the disc composite 1 is therefore a total of 14.6 mm thick, which is exactly the width of the peripheral edge surface 2.2. Its length is 1,200 mm and its total area is 0,01752 m ² . The ratio of the area a main surface 2.1 a or 2.1 b to the surface of the peripheral edge surface 2.2 is therefore around 5: 1. Seen in cross-section, the peripheral edge surface 2.2 forms with both main surfaces 2.1 a and 2.1 b in each case an angle of 90 °. The peripheral edge surface 2.2 is covered according to the first embodiment with the all-round seal 3, which consists of a 0.8 mm thick band of one connected to the peripheral edge surface 2.2 polymer layer 3.1 of EVA and on the side facing away from the edge surface 2.2 side of the polymer layer 3.1 arranged further polymer layer 3.2 is formed from PET.

The disc composite 1 is operated in the same manner as that shown in FIG

Disc composite produced, with the difference that on the free side of the translucent stone layer 2.5, the further transparent adhesion promoter layer 2.6 of dimensions 300 mm ^χ 300 mm ^χ 0.8 mm and the other transparent glass 2.7 dimensions of 300 mm ^χ 300 mm ^χ 3 mm in the specified order to be superimposed on each other. The peripheral edge surface 2.2 of the resulting, disc-shaped, translucent composite material 2 is provided with a band of dimensions 4 m ^χ 12.6 mm ^χ 1 mm from the polymer layer 3.1 of EVA and the other polymer layer 3.2 made of PET, so that the peripheral edge surface 2.2 completely covered by the wrap-around sealer 3. The layers are also adhesively bonded together by autoclaving at 100 ° C using the heat-pressure treatment.

The laminated composite 1 shown in Fig. 2 is also excellent

mechanical stability and the statements made to the disc assembly shown in Fig. 1 therefore apply accordingly.

Fig. 3 shows a schematic cross-sectional view of an inventive

Disc composite according to a third embodiment. The disk composite 1 shown in FIG. 2 corresponds to the disk composite 1 shown in FIG

Difference in that on the side remote from the transparent adhesion promoter layer 2.4 side of the translucent stone layer 2.5 a seal 2.8 is arranged so that an outer surface of the seal 2.8 instead of the outer surface of the translucent stone layer 2.5, the main surface forms 2.1 b. The laminated composite 1 is produced by a method which corresponds to the method for producing the disc composite shown in Fig. 1 with the difference that on the of the transparent adhesive layer 2.4 opposite side of the stone layer 2.5, the seal 2.8 is placed accurately and then the peripheral edge surface is provided with the all-round seal. Alternatively, the seal in the form of a paint or a resin subsequently to the outer surface of the

Stone layer 2.5 are applied. In this embodiment, the

Laminated composite is ideal as an external facade cladding because the seal protects against dirt and mechanical, chemical and thermal damage. Fig. 4 shows as a further preferred, not limiting the invention

Embodiment is a schematic cross-sectional view of a composite pane 1 in the form of a Mehrfachisolierglases containing a composite pane according to one of the preceding and described in Figures 1 to 3 embodiments. This laminated composite 1 combines one described in FIG. 1, 2 or 3

Laminated composite 1 via a spacer 4 made of aluminum, as it is commonly used for the production of multi-pane insulating glass according to DIN EN 1279-2, using a primary and a secondary adhesive (not shown) adherent with a 3 mm thick tempered glass sheet 6 dimensions 300 mm ^χ 300 mm, so that between the composite pane 1 and glass 6, an insulating cavity 5 results. In Fig. 4, the individual layers of composite material 2 of

Disk composite 1 for clarity no longer shown. In this configuration, the laminated composite 1 is ideal for outdoor use, because the tempered glass pane 6, the disc composite 1 before

Pollution and mechanical, chemical and thermal damage protects. In addition, a thermal insulation is realized, so that in particular when using the composite pane for building an insulating effect is realized.

LIST OF REFERENCE NUMBERS

1 composite pane,

2 composite material

2.1 a first major surface,

2.1b second major surface,

2.2 circumferential edge surface,

2.3 glass pane,

2.4 primer layer, 2.5 stone layer,

2.6 more adhesive layer,

2.7 more glass pane,

2.8 sealing

3 All-round sealing 3.1 Polymer layer

3.2 more polymer layer

4 spacers

5 insulating cavity

6 glass pane

Claims

claims:

1 . Disc assembly (1) with two main surfaces (2.1 a) and (2.1 b) and a peripheral edge surface (2.2), containing in the order above superimposed and adherent to each other,

a transparent glass pane (2.3),

a transparent adhesion promoter layer (2.4),

- an opaque or translucent stone layer (2.5) and

- an all-round seal (3) of the peripheral edge surface (2.2)

characterized in that

the all-round seal (3) at least two polymer layers (3.1, 3.2)

of different materials, one polymer layer (3.1) of the two polymer layers (3.1) being an adhesive film which engages at its boundary layer in pores and / or cracks of the stone layer (2.5), and the other polymer layer (3.2) of the two polymer layers (3.1, 3.2) is a barrier film that forms a liquid barrier.

2. Disc assembly according to claim 1, characterized in that a material of the adhesive film is selected from PU and / or EVA and a material of the barrier film PET, wherein the PU is more preferably a TPU.

3. Laminate according to claim 1 or 2, characterized in that a layer thickness of the barrier film in the range of 0.05 to 0.20 mm, preferably 0.08 to 0.17 mm, more preferably 0.12 to 0.18 mm, and a layer thickness of the adhesive sheet is in the range of 0.36 to 1, 25 mm, preferably 0.5 to 1, 1 mm, more preferably 0.7 to 0.9 mm.

4. laminated composite according to one of claims 1 to 3, characterized in that the barrier film has a coating, contains a dye and / or has a printing.

5. Disc assembly according to claim 4, characterized in that the coating is formed as a barrier coating.

6. Disc assembly according to one of the preceding claims, characterized

characterized in that the two polymer layers (3.1, 3.2) are transparent.

7. Disc assembly according to one of the preceding claims, characterized

in that an additional transparent adhesion promoter layer (2.6) is arranged on the side of the opaque or translucent stone layer (2.5) facing away from the transparent adhesion promoter layer (2.4) and on the side of the transparent side facing away from the opaque or translucent stone layer (2.5)

Adhesive layer (2.4) a further transparent glass pane (2.7) is arranged.

8. laminated composite according to one of claims 1 to 6, characterized in that on the side facing away from the transparent adhesion promoter layer (2.4) side of the opaque or translucent stone layer (2.5) a seal (2.8) is arranged.

9. A process for producing the composite pane according to one of claims 1 to 8, characterized in that

(I) an opaque or translucent stone layer (2.5) over a transparent

Bonding agent layer (2.4) is adhesively bonded to a transparent glass pane (2.3), and

(II) the peripheral edge surface is sealed with an all-around seal (3) comprising at least two polymer layers of different materials.

10. The method according to claim 9, characterized in that the method steps (I) and (II) are carried out simultaneously under heat treatment.

1 1. Method according to claim 9 or 10, characterized in that the opaque or translucent stone layer (2.5) in method step (I) further comprises a further transparent adhesion promoter layer (2.6) with a further transparent glass pane (2.7) on the surface of the transparent adhesion promoter layer (2.4). opposite side is firmly adhered.

12. Use of the disc composite (1) according to any one of claims 1 to 8 as a purely decorative or decorative architectural component for the interior and exterior.

13. Use according to claim 12, characterized in that the purely decorative and / or decorative architectural component is used as an outer facade or as an inner wall paneling.