LAMINATED PANE HAVING ALL-AROUND SEALING

Abstract

A laminated pane has two primary surfaces and a surrounding edge surface, containing the following, positioned atop one another in the order indicated and adhesively bonded to one another, a transparent glass panel, a transparent adhesion-promoting layer, a mechanically stable layer, and an all-around sealing of the surrounding edge surface, wherein the all-around sealing has at least three polymer layers of different materials, wherein a first polymer layer of the three polymer layers is a first adhesive film that is adhesively bonded at its boundary layer to the surrounding edge surface of the laminated pane, a second polymer layer of the three polymer layers is a second adhesive film that is provided for bonding the first adhesive film to a third polymer layer, and the third polymer layer of the three polymer layers is a barrier film that forms a barrier to liquid.

Claims

1. A laminated pane having two primary surfaces and a surrounding edge surface, containing the following, positioned atop one another in the order indicated and adhesively bonded to one another, a transparent glass panel, a transparent adhesion-promoting layer, a mechanically stable layer, and an all-around sealing of the surrounding edge surface, wherein the all-around sealing has at least three polymer layers of different materials, wherein a first polymer layer of the three polymer layers is a first adhesive film that is adhesively bonded at its boundary layer to the surrounding edge surface of the laminated pane, a second polymer layer of the three polymer layers is a second adhesive film that is provided for bonding the first adhesive film to a third polymer layer, and the third polymer layer of the three polymer layers is a barrier film that forms a barrier to liquid.

2. The laminated pane according to claim 1, wherein a material of the first and second adhesive film is selected from PE (polyethylene), PU, and/or EVA (ethylene vinyl acetate) and a material of the barrier film is PET (polyethylene terephthalate).

3. The laminated pane according to claim 1, wherein a layer thickness of the barrier film is in the range from 0.05 to 0.20 mm, and a layer thickness of the first adhesive film is in the range from 0.05 to 0.250 mm, and a layer thickness of the second adhesive film is in the range from 0.02 to 0.07 mm.

4. The laminated pane according to claim 1, wherein the mechanically stable layer is an opaque or translucent stone layer.

5. The laminated pane according to claim 1, wherein the barrier film has a coating, contains a dye, and/or has printing.

6. The laminated pane according to claim 5, wherein the coating is implemented as a barrier coating.

7. The laminated pane according to claim 1, wherein the three polymer layers are transparent.

8. The laminated pane according to claim 1, comprising a further transparent adhesion-promoting layer arranged on the side of the mechanically stable layer facing away from the transparent adhesion-promoting layer, and a further transparent glass panel arranged on the side of the transparent adhesion-promoting layer facing away from the mechanically stable layer.

9. The laminated pane according to claim 1, comprising a seal arranged on the side of the mechanically stable layer facing away from the transparent adhesion-promoting layer.

10. A method for producing the laminated pane according to claim 1, comprising (I) adhesively bonding a mechanically stable layer to a transparent glass panel via a transparent adhesion-promoting layer, and (II) sealing the surrounding edge surface with an all-around sealing that has at least three polymer layers of different materials.

11. The method according to claim 10, wherein the steps (I) and (II) are carried out simultaneously under heat treatment.

12. The method according to claim 10, wherein the mechanically stable layer is an opaque or translucent stone layer and in step (I), is further adhesively bonded via another transparent adhesion-promoting layer to another transparent glass panel on the side facing away from the transparent adhesion-promoting layer.

13. A method comprising utilizing a laminated pane according to claim 1 as a purely decorative or decorative-architectural component for indoors or outdoors.

14. The method according to claim 13, wherein the purely decorative and/or decorative-architectural component is used as an external faade or as an internal wall cladding.

15. The laminated pane according to claim 2, wherein the PU is a TPU (thermoplastic polyurethane).

16. The laminated pane according to claim 3 wherein the layer thickness of the barrier film is in the range from 0.08 to 0.17 mm, and the layer thickness of the first adhesive film is in the range from 0.06 to 0.1 mm, and the layer thickness of the second adhesive film is in the range from 0.04 to 0.06 mm.

17. The laminated pane according to claim 16, wherein the layer thickness of the barrier film is in the range from 0.10 to 0.15 mm.

Description

[0073] In the following, exemplary embodiments of the laminated pane according to the invention are explained by way of example with reference to the following figures. The schematic representations are not to scale. The proportions shown do not, consequently, correspond to the proportions used in implementation of the invention in practice. They depict:

[0074] FIG. 1 a schematic cross-sectional view of a laminated pane according to the invention according to a first embodiment;

[0075] FIG. 2 a schematic cross-sectional view of a laminated pane according to the invention according to a second embodiment;

[0076] FIG. 3 a schematic cross-sectional view of a laminated pane according to the invention according to a third embodiment; and

[0077] FIG. 4 a schematic cross-sectional view of a laminated pane according to the invention in the form of a multiple insulating glass containing a laminated pane per FIGS. 1 to 3.

[0078] FIG. 1 depicts a schematic cross-sectional view of a laminated pane according to the invention according to a first embodiment.

[0079] A preferred first embodiment of the laminated pane 1 according to the invention of FIG. 1, which does not restrict the invention, is, for example, a decorative translucent cladding for an interior wall.

[0080] The laminated pane 1 comprises a panel-shaped composite material 2 having two primary surfaces 2.1a and 2.1b and a surrounding edge surface 2.2 forming the edge of the laminated pane 1, which is covered by an all-around sealing 3. Optionally, the laminated pane 1 also includes brackets, with which it can be arranged on the interior wall. For the sake of clarity, the brackets are not shown.

[0081] The composite material 2 contains, positioned atop one another in the order indicated and adhesively bonded to one another, a transparent glass panel 2.3, a transparent adhesion-promoting layer 2.4, and a mechanically stable layer implemented as a translucent or opaque stone layer 2.5. The all-around sealing 3 of the surrounding edge surface 2.2 has a first polymer layer 3.1 in the form of a first adhesive film, a second polymer layer 3.2 in the form of a second adhesive film, and a third polymer layer 3.3 in the form of a barrier film forming a barrier to liquid.

[0082] The transparent glass panel 2.3 is a transparent glass panel of dimensions 300 mm300 mm, a thickness of 4 mm, and visible light transmittance of 90%. The outer surface of the transparent glass panel 2.3 forms the primary surface 2.1a, while the outer surface of the translucent or opaque stone layer 2.5 forms the other primary surface 2.1b.

[0083] The translucent or opaque stone layer 2.5 is, in this exemplary embodiment, a 5-mm-thick translucent marble panel that has the same dimensions as the transparent glass panel 2.3. The translucent stone layer 2.5 is completely free of volatile compounds. It is, in particular, free of water. It is bonded to the transparent glass panel 2.3 via the transparent adhesion-promoting layer 2.4. The transparent adhesion-promoting layer 2.4 is a 0.8-mm-thick adhesive film made of polyurethane with the same dimensions as the translucent stone layer 2.5 and the transparent glass panel 2.3.

[0084] The panel-shaped, translucent composite material 2 of the laminated pane 1 is a total of 9.8-mm-thick, which corresponds exactly to the width of the surrounding edge surface 2.2. Its length is 1,200 mm and its total surface area is 0.01176 m.sup.2. The ratio of the area of a primary surface 2.1a or 2.1b to the area of the surrounding edge surface 2.2 is consequently about 8:1. Viewed in cross-section, the surrounding edge surface 2.2 forms an angle of 90 with the two primary surfaces 2.1a and 2.1b in each case.

[0085] The surrounding edge surface 2.2 covered with the all-around sealing 3, which is formed by a 0.06-mm-thick band of a polymer layer 3.1 made of EVA bonded to the surrounding edge surface 2.2 and a second polymer layer 3.2 made of PE arranged on the side of the polymer layer 3.1 facing away from the edge surface 2.2. A third polymer layer 3.3 made of PET covers the second polymer layer 3.2, which forms an adhesive bond between the first polymer layer 3.1 and the third polymer layer 3.3.

[0086] The laminated pane 1 is produced by first subjecting the translucent stone layer 2.5 to a pre-treatment. The translucent stone layer 2.5 of dimensions 300 mm300 mm5 mm is polished on its surfaces. Then, any solid residues from the polishing are removed with compressed air. After that, the translucent stone layer 2.5 is rinsed with deionized water and pre-dried. The pre-dried, translucent stone layer 2.5 is freed of volatile compounds, in particular, of water, in a circulating-air oven that is operated with cleaned, dried air, at a maximum material temperature of 140 C. Then, the translucent stone layer 2.5 free of volatile compounds is gradually cooled to room temperature.

[0087] Then, in the order indicated, the polished, cleaned, and dried transparent glass panel 2.3 of dimensions 300 mm300 mm4 mm, the transparent adhesion-promoting layer 2.4 of dimensions 300 mm300 mm0.8 mm, and the translucent stone layer 2.5 free of volatile compounds are placed one atop another in a precisely fitting manner.

[0088] Subsequently, the surrounding edge surface 2.2 of the resultant, panel-shaped, translucent composite material 2 is bonded to a band with a width of 9.8 mm made of the first polymer layer 3.1 made of EVA, the second polymer layer 3.2 made of PE, and the third polymer layer 3.3 made of PET such that the surrounding edge surface 2.2 is completely covered by the all-around sealing 3.

[0089] The first polymer layer 3.1 made of EVA, the second polymer layer 3.2 made of PE, and the third polymer layer 3.3 made of PET form a so-called film pre-laminate, which is arranged as a band on the surrounding edge surface 2.2. The film pre-laminate can be processed without special precautionary measures and is, consequently, particularly easy to handle. The total thickness of the film pre-laminate is approx. 0.250 mm, wherein the first polymer layer 3.1 made of EVA has a film thickness of 0.06 mm, the second polymer layer 3.2 made of PE has a film thickness of 0.04 mm, and the third polymer layer 3.3 made of PET has a film thickness of 0.150 mm.

[0090] In an alternative embodiment of the film pre-laminate, the first polymer layer 3.1 made of EVA has a film thickness of 0.1 mm, the second polymer layer 3.2 made of PE has a film thickness of 0.05 mm, and the third polymer layer 3.3 made of PET has a film thickness of 0.10 mm.

[0091] The glass pane layered with the stone layer and the edge-sealing polymer layers 3.1, 3.2, 3.3 are adhesively bonded to one another in an autoclave using a heat-pressure treatment at 100 C. In a single step, simultaneously, the layers are laminated and their edges sealed.

[0092] The laminated pane 1 is of high mechanical stability and has excellent interlayer adhesion. It is, therefore, very well suited in particular for use in particular as an interior wall cladding.

[0093] FIG. 2 depicts a schematic cross-sectional view of a laminated pane according to the invention in accordance with a second embodiment. The laminated pane 1 depicted in FIG. 2 corresponds to the laminated pane 1 depicted in FIG. 1 with the difference that on the side of the translucent stone layer 2.5 facing away from the transparent adhesion-promoting layer 2.4, a further transparent adhesion-promoting layer 2.6 is arranged, and on the side of the adhesion promoting layer 2.4 facing away from the stone layer 2.5, a further transparent glass pane 2.7 is arranged such that instead of the surface of the translucent stone layer 2.5, an outer surface of the transparent glass pane 2.7 forms the primary surface 2.1b.

[0094] The further transparent glass pane 2.7 is a further transparent glass panel of dimensions 300 mm300 mm, a thickness of 4 mm, and a visible light transmittance of 90%.

[0095] The further transparent adhesion-promoting layer 2.6 is a 0.8-mm-thick adhesive film made of polyurethane with the same dimensions as the translucent stone layer 2.5, the transparent adhesion-promoting layer 2.4, and the transparent glass panels 2.3 and 2.7.

[0096] The panel-shaped, translucent composite material 2 of the laminated pane 1 is thus 14.6-mm-thick in total, which is exactly the width of the surrounding edge surface 2.2. Its length is 1,200 mm, and its total area 0.01752 m.sup.2. The ratio of the area of a primary surface 2.1a or 2.1b to the area of the surrounding edge surface 2.2 is, consequently, approx. 5:1. Viewed in cross-section, the surrounding edge surface 2.2 forms an angle of 90 with the two primary surfaces 2.1a and 2.1b in each case.

[0097] Furthermore, the surrounding edge surface 2.2 corresponding to the first embodiment is covered with the all-around sealing 3, which is formed by a band of a first polymer layer 3.1 made of EVA bonded to the surrounding edge surface 2.2, the second polymer layer 3.2 made of PE, and a third polymer layer 3.3 made of PET.

[0098] The laminated pane 1 is produced in the same way as the laminated pane depicted in FIG. 1, with the difference that the further transparent adhesion-promoting layer 2.6 of dimensions 300 mm300 mm0.8 mm and the further transparent glass panel 2.7 of dimensions 300 mm300 mm3 mm are placed on the free side of the translucent stone layer 2.5, one atop the other in the order indicated in a precisely fitting manner. The surrounding edge surface 2.2 of the resultant, panel-shaped, translucent composite materials 2 is provided with a band consisting of the first polymer layer 3.1 made of EVA, the second polymer layer made of PE, and the third polymer layer 3.3 made of PET such that the surrounding edge surface 2.2 is completely covered by the all-around sealing 3. The layers are likewise adhesively bonded to one another using the heat-pressure treatment at 100 C. in the autoclave.

[0099] The laminated pane 1 depicted in FIG. 2 is also of excellent mechanical stability and, consequently, the statements made concerning the laminated pane depicted in FIG. 1 apply accordingly.

[0100] FIG. 3 depicts a schematic cross-sectional view of a laminated pane according to the invention in accordance with a third embodiment. The laminated pane 1 depicted in FIG. 3 corresponds to the laminated pane 1 depicted in FIG. 1 with the difference that a seal 2.8 is arranged on the side of the translucent stone layer 2.5 facing away from the transparent adhesion-promoting layer 2.4 such that instead of the outer surface of the translucent stone layer 2.5, an outer surface of the seal 2.8 forms the primary surface 2.1b. The laminated pane 1 is produced by a method that corresponds to the method for producing the laminated pane depicted in FIG. 1 with the difference that the seal 2.8 is placed in a precisely fitting manner on the side of the stone layer 2.5 facing away from the transparent adhesion-promoting layer 2.4; and, then, the surrounding edge surface is provided with the all-around sealing. Alternatively, the seal can even be subsequently applied in the form of a lacquer or a resin to the outer surface of the stone layer 2.5. In this embodiment, the laminated pane is ideally suitable as an external faade cladding since the seal protects against dirt and mechanical, chemical, and thermal damage.

[0101] FIG. 4 depicts, as another preferred embodiment not restricting the invention, a schematic cross-sectional view of a laminated pane 1 in the form of a multiple insulating glass that contains a laminated pane in accordance with one of the preceding embodiments described in FIG. 1 to 3. This laminated pane 1 combines a laminated pane 1 described in FIG. 1, 2, or 3 via spacer 4 made of aluminum as is customarily used per DIN EN 1279-2 for the production of multiple insulating glasses, using a primary and a secondary adhesive (not shown) adhesively with a 3-mm-thick toughened glass pane 6 of dimensions 300 mm300 mm such that an insulating cavity 5 results between the laminated laminated pane 1 and the glass pane 6. For the sake of clarity, in FIG. 4, the individual layers of the composite material 2 of the laminated pane 1 are no longer shown. In this configuration, the laminated pane 1 is ideally suitable for outdoor applications because the toughened glass pane 6 protects the laminated pane 1 against dirt and mechanical, chemical, and thermal damage. In addition, thermal insulation is realized such that, in particular with the use of the pane for building construction, an insulating effect is realized.

LIST OF REFERENCE CHARACTERS

[0102] 1 laminated pane, [0103] 2 composite material [0104] 2.1a first primary surface, [0105] 2.1b second primary surface, [0106] 2.2 surrounding edge surface, [0107] 2.3 glass panel, [0108] 2.4 adhesion-promoting layer, [0109] 2.5 stone layer, [0110] 2.6 further adhesion-promoting layer, [0111] 2.7 further glass panel, [0112] 2.8 seal [0113] 3 all-around sealing [0114] 3.1 first polymer layer [0115] 3.2 second polymer layer [0116] 3.3 third polymer layer [0117] 4 spacer [0118] 5 insulating cavity [0119] 6 glass panel