LAMINATED PANE, METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF

Abstract

A laminated pane having two main surfaces and a circumferential edge surface is presented. The laminated pane includes, in order and adhesively joined one atop another, a transparent glass pane, a transparent adhesion-promoting layer, an opaque or translucent stone layer, and an all-around seal of the circumferential edge surface. According to one aspect, the all-around seal has at least two polymer layers of different materials. One of the polymer layers is an adhesive film that engages, on its boundary layer, in pores and/or cracks of the stone layer. The other polymer layer is a barrier film that forms a fluid barrier. Methods for producing and using of the laminated pane are also presented.

Claims

1.-13. (canceled)

14. A laminated pane having two main surfaces and a circumferential edge surface, the laminated pane comprising, in order and adhesively joined one atop another: a transparent glass pane; a transparent adhesion-promoting layer; an opaque or translucent stone layer; and an all-around seal of the circumferential edge surface, wherein the all-around seal comprises at least two polymer layers of different materials, wherein one polymer layer of the at least two polymer layers is an adhesive film that engages, on its boundary layer, in pores and/or cracks of the stone layer, and wherein the other polymer layer of the at least two polymer layers is a barrier film that forms a fluid barrier.

15. The laminated pane according to claim 14, wherein a material of the adhesive film is selected from at least one of: a) polyurethane (PU), and b) EVA, and wherein a material of the barrier film is PET.

16. The laminated pane according to claim 15, wherein the PU is a thermoplastic.

17. The laminated pane according to claim 14, wherein a layer thickness of the barrier film is in a range from 0.05 mm to 0.20 mm, and wherein a layer thickness of the adhesive film is in a range from 0.36 mm to 1.25 mm.

18. The laminated pane according to claim 17, wherein a layer thickness of the barrier film is in the range from 0.12 mm to 0.18 mm.

19. The laminated pane according to claim 17, wherein a layer thickness of the adhesive film is in the range from 0.7 mm to 0.9 mm.

20. The laminated pane according to claim 14, wherein the barrier film comprises at least one of: a) a coating, b) a colorant, and c) a printing.

21. The laminated pane according to claim 20, wherein the coating is implemented as a barrier coating.

22. The laminated pane according to claim 14, wherein the at least two polymer layers are transparent.

23. The laminated pane according to claim 14, wherein on a side of the opaque or translucent stone layer facing away from the transparent adhesion-promoting layer, another transparent adhesion-promoting layer is arranged, and wherein on a side of the transparent adhesion-promoting layer facing away from the opaque or translucent stone layer, another transparent glass pane is arranged.

24. The laminated pane according to claim 14, further comprising a seal arranged on a side of the opaque or translucent stone layer facing away from the transparent adhesion-promoting layer.

25. A method for producing a laminated pane, the method comprising: (I) adhesively joining an opaque or translucent stone layer to a transparent glass pane via a transparent adhesion-promoting layer; and (II) sealing a circumferential edge surface with an all-around seal that comprises at least two polymer layers of different materials, wherein the laminated pane comprises, in order and adhesively joined one atop another, i) the transparent glass pane, ii) the transparent adhesion-promoting layer, iii) the opaque or translucent stone layer, and iv) the all-around seal.

26. The method according to claim 25, wherein the process steps (I) and (II) are carried out simultaneously with heat treatment.

27. The method according to claim 25, wherein the process step (I) further comprises adhesively joining, a side of the opaque or translucent stone layer facing away from the transparent adhesion-promoting layer, to another transparent glass pane via another transparent adhesion-promoting layer.

28. A method, comprising: providing a laminated pane according to claim 14; and using the laminated pane as a purely decorative or decorative architectural component for indoors or outdoors.

29. The method according to claim 28, wherein the purely decorative or decorative architectural component is used as an exterior faade or an interior wall covering.

Description

[0079] The schematic representations are not true to scale. Consequently, the size ratios depicted do not correspond to the size ratios used in the working of the invention in practice. They depict:

[0080] FIG. 1 a schematic cross-sectional view of a laminated pane according to the invention in accordance with a first embodiment;

[0081] FIG. 2 a schematic cross-sectional view of a laminated pane according to the invention in accordance with a second embodiment;

[0082] FIG. 3 a schematic cross-sectional view of a laminated pane according to the invention in accordance with a third embodiment; and

[0083] FIG. 4 a schematic cross-sectional view of a laminated pane according to the invention in the form of a multiple insulating glass that includes a laminated pane in accordance with FIGS. 1 to 3.

[0084] FIG. 1 depicts a schematic cross-sectional view of a laminated pane according to the invention in accordance with a first embodiment.

[0085] A first embodiment in accordance with FIG. 1 of the laminated pane 1 according to the invention, which is preferred but does not restrict the invention, is, for example, a decorative translucent lining for an interior wall.

[0086] The laminated pane 1 comprises a pane-shaped composite material 2 having two main surfaces 2.1a and 2.1b and a circumferential edge surface 2.2 forming the edge of the laminated pane 1, which is covered by an all-around seal 3. Optionally, the laminated pane 1 also includes mounting brackets, with which it can be arranged on the interior wall. For the sake of clarity, the mounting brackets are not shown.

[0087] The composite material 2 includes, one atop another and adhesively joined to one another in the order indicated, a transparent glass pane 2.3, a transparent adhesion-promoting layer 2.4, and a translucent or opaque stone layer 2.5. The all-around seal 3 of the circumferential edge surface 2.2 has one polymer layer 3.1 in the form of an adhesive film and another polymer layer 3.2 in the form of barrier film forming a fluid barrier.

[0088] The transparent glass pane 2.3 is a transparent glass pane having the dimensions 300 mm300 mm, a thickness of 4 mm, and visible-light transmittance of 90%. The outer surface of the transparent glass pane 2.3 forms the main surface 2.1a, whereas the outer surface of the translucent or opaque stone layer 2.5 forms the other main surface 2.1b.

[0089] The translucent or opaque stone layer 2.5 is, in this embodiment, a 5-mm-thick translucent marble sheet, which has the same dimensions as the transparent glass pane 2.3. The translucent stone layer 2.5 is completely free of volatile compounds. In particular, it is free of water. It is joined to the transparent glass pane 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 pane 2.3.

[0090] The pane-shaped, translucent composite material 2 of the laminated pane 1 is thus 9.8 mm thick in all, precisely matching the width of the circumferential edge surface 2.2. Its length is 1200 mm and its total area is 0.01176 m.sup.2. The ratio of the area of one main surface 2.1a or 2.1b to the area of the circumferential edge surface 2.2 is, consequently, approx. 8:1. Viewed in cross-section, the circumferential edge surface 2.2 forms, in each case, an angle of 90 with the two surfaces 2.1a and 2.1b.

[0091] The circumferential edge surface 2.2 is covered with the all-around seal 3, which is formed by a 0.8-mm-thick strip of a polymer layer 3.1 made of EVA and joined to the circumferential edge surface 2.2 and another polymer layer 3.2 made of PET and arranged on the side of the polymer layer 3.1 facing away from the edge surface 2.2.

[0092] The laminated pane 1 is produced by first subjecting the translucent stone layer 2.5 to a pretreatment. The translucent stone layer 2.5 of the dimensions 300 mm300 mm5 mm is polished on its surface. Then, solid residues resulting from the polishing that may be present are removed by compressed air. After that, the translucent stone layer 2.5 is rinsed with deionized water and pre-dried. In a forced-air oven that is operated with purified and dried air, at a maximum material temperature of 140 C., the pre-dried, translucent stone layer 2.5 is freed of volatile compounds, in particular of water. Then, the translucent stone layer 2.5, free of volatile compounds, is gradually cooled to room temperature.

[0093] After that, in the order indicated, the polished, cleaned, and dried transparent glass pane 2.3 of the dimensions 300 mm300 mm4 mm, the transparent adhesion-promoting layer 2.4 of the 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.

[0094] Subsequently, the circumferential edge surface 2.2 of the resultant, pane-shaped, translucent composite material 2 is joined with a strip with a width of 9.8 mm made of the polymer layer 3.1 made of EVA and of the other polymer layer 3.2 made of PET such that the circumferential edge surface 2.2 is completely covered by the all-around seal 3. The glass pane layered with the stone layer and the edge-sealed polymer layers 3.1, 3.2 are adhesively joined to one another using a heat-pressure treatment at 100 C. in an autoclave. In a single working step, the layers are laminated and their edges are simultaneously sealed.

[0095] The laminated pane 1 has high mechanical stability and excellent interlayer adhesion. It is, consequently, very suitable as an interior wall cladding.

[0096] FIG. 2 depicts a schematic cross-sectional view of a laminated glass 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, another 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, another transparent glass pane 2.7 is arranged such that an outer surface of the transparent glass pane 2.7 instead of the outer surface of the translucent stone layer 2.5 forms the main surface 2.1b.

[0097] The other transparent glass pane 2.7 is another transparent glass pane having the dimensions 300 mm300 mm, a thickness of 4 mm, and visible-light transmittance of 90%.

[0098] The other 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 panes 2.3 and 2.7.

[0099] The pane-shaped, translucent composite material 2 of the laminated pane 1 is thus 14.6 mm thick in all, precisely the width of the circumferential edge surface 2.2. Its length is 1200 mm and its total area is 0.01752 m.sup.2. The ratio of the area of one main surface 2.1a or 2.1b to the area of the circumferential edge surface 2.2 is, consequently, approx. 5:1. Viewed in cross-section, the circumferential edge surface 2.2 forms an angle of 90, in each case, with the two main surfaces 2.1a and 2.1b.

[0100] The circumferential edge surface 2.2 is, corresponding to the first embodiment, covered with the all-around seal 3, which is formed by a 0.8-mm-thick strip made of a polymer layer 3.1 made of EVA joined with the circumferential edge surface 2.2 and another polymer layer 3.2 made of PET arranged on the side of the polymer layer 3.1 facing away from the edge surface 2.2.

[0101] The laminated pane 1 is produced in the same manner as the laminated pane depicted in FIG. 1, with the difference that, on the free side of the translucent stone layer 2.5, the other transparent adhesion-promoting layer 2.6 of the dimensions 300 mm300 mm0.8 mm, and the other transparent glass pane 2.7 of the dimensions 300 mm300 mm3 mm are placed one atop another in a precisely fitting manner in the order indicated. The circumferential edge surface 2.2 of the resultant, pane-shaped, translucent composite material 2 is provided with a strip of the dimensions 4 m12.6 mm1 mm made of the polymer layer 3.1 made of EVA and the other polymer layer 3.2 made of PET such that the circumferential edge surface 2.2 is completely covered by the all-around seal 3. The layers are also adhesively joined to one another using the heat-pressure treatment at 100 C. in the autoclave.

[0102] The laminated pane 1 depicted in FIG. 2 is likewise of excellent mechanical stability and the statements made concerning the laminated pane depicted in FIG. 1 apply accordingly.

[0103] 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. 2 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 an outer surface of the seal 2.8 instead of the outer surface of the translucent stone layer 2.5 forms the main surface 2.1b. The laminated pane 1 is produced according to 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 circumferential edge surface is provided with the all-around seal. Alternatively, the seal can also be applied later to the outer surface of the stone layer 2.5 in the form of a lacquer or a resin. In this embodiment, the laminated pane is outstandingly suitable as an external faade cladding, since the seal protects against contamination and mechanical, chemical, and thermal damage.

[0104] FIG. 4 depicts, as another embodiment that is preferred but does not restrict the invention, a schematic cross-sectional view of a laminated pane 1 in the form of a multiple insulating glass that includes 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 a spacer 4 made of aluminum, as is customarily used for the production of multipane insulating glazings per DIN EN 1279-2, using a primary and a secondary adhesive (not shown) adhesively with a 3-mm-thick prestressed glass pane 6 of the dimensions 300 mm300 mm, such that an insulating cavity 5 results between the laminated pane 1 and the glass pane 6. In FIG. 4, for the sake of clarity, the individual layers of the composite material 2 of the laminated pane 1 are no longer depicted. In this configuration, the laminated pane 1 is outstandingly suitable for outdoor applications, since the prestressed glass pane 6 protects the laminated pane 1 against contamination and mechanical, chemical, and thermal damage. In addition, thermal insulation is implemented such that with the use of the laminated pane for building construction, an insulating effect is realized.

LIST OF REFERENCE CHARACTERS:

[0105] 1 laminated pane,

[0106] 2 composite material

[0107] 2.1a first main surface,

[0108] 2.1b second main surface,

[0109] 2.2 circumferential edge surface,

[0110] 2.3 glass pane,

[0111] 2.4 adhesion-promoting layer,

[0112] 2.5 stone layer,

[0113] 2.6 another adhesion-promoting layer,

[0114] 2.7 another glass pane,

[0115] 2.8 seal

[0116] 3 all-around seal

[0117] 3.1 polymer layer

[0118] 3.2 another polymer layer

[0119] 4 spacer

[0120] 5 insulating cavity

[0121] 6 glass pane