Insulating glass with load-bearing properties

Abstract

The present application relates to an insulating glass (1) having at least two glass panes (2, 3) spaced apart from one another. The insulating glass (1) comprises at least one marginal join arranged between the glass panes (2, 3) in the region (8, 9, 10, 11) of edges (4, 5, 6, 7) of said glass panes (2, 3), said marginal join consisting of a spacer (12) and also at least one adhesive. The marginal join comprises a first adhesive at least in the region (8, 9) of two mutually opposite edges (4, 5), said adhesive having a rigidity in the cured state of at least 50 N/mm.sup.2, preferably of at least 100 N/mm.sup.2.

Claims

1. An insulating glass having at least two glass panes spaced apart from one another, said insulating glass comprising at least one marginal join arranged between the glass panes, said marginal join comprising a spacer and also at least one first adhesive and at least one second adhesive, the marginal join comprising the spacer and only the first adhesive in a first region between a first edge of said insulating glass and the spacer and in a second region between a second edge of said insulating glass and said spacer, said second edge lying opposite of said first edge on said insulating glass, said first adhesive having a rigidity in a cured state of at least 50 N/mm.sup.2, wherein the marginal join comprises the spacer and only the second adhesive in a third region between a third edge of said insulating glass and said spacer and in a fourth region between a fourth edge of said insulating glass and said spacer, said third edge and said fourth edge lying opposite to each other on said insulating glass, wherein the second adhesive has a lower rigidity in the cured state than the first adhesive.

2. The insulating glass according to claim 1, wherein the adhesive has a short-term stability with respect to erosion by wind loads of at least 5 N/mm.sup.2, preferably of at least 10 N/mm.sup.2.

3. The insulating glass according to claim 1, wherein the first adhesive is applied in the first region and the second region to a width of 20 mm to 200 mm from said first and said second edges in a direction of the center of a glass panes.

4. The insulating glass according to claim 1, wherein the marginal join comprises the first adhesive in the regions of the first and second edges in which the insulating glass is supported during an intended use of the insulating glass.

5. The insulating glass according to claim 1, wherein the at least one second adhesive is applied to a smaller width in the third and fourth regions than the first adhesive in the first and second regions.

6. The insulating glass according to claim 1, wherein at least one anchoring element is inserted in the first adhesive in the first or second regions.

7. The insulating glass according to claim 1, wherein a film consisting of a polymer is stretched between the at least two glass panes and parallel thereto, wherein the film is spaced apart from each of the glass panes by way of the at least one spacer.

8. The insulating glass according to claim 1, wherein outermost glass panes of the at least two glass panes consists of a glass laminate.

9. The insulating glass according to claim 1, wherein the first adhesive is applied in the first area of the least two mutually opposite edges to a width of 80 mm to 120 mm from the edge in the direction of the center of the glass panes.

10. The insulating glass according to claim 1, wherein the first adhesive has a rigidity in the cured state of at least 100 N/mm.sup.2.

11. A method for producing the insulating glass according to claim 1, said method comprising the following steps: a) providing a first glass pane of said two glass panes; b) arranging the at least one spacer circumferentially in the first, second, third and fourth region of the first, second, third and fourth edge, respectively, of the first glass pane at a distance from said edges; c) applying only the first adhesive, which has a rigidity in a cured state of at least 50 N/mm.sup.2, in said first and said second regions, d) applying only the second adhesive, which has a lower rigidity in the cured state than the first adhesive, in said third and said fourth regions, wherein the second glass pane is positioned on the at least one spacer before or after the application of the first adhesive.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The drawings used to explain the exemplary embodiment show:

(2) FIG. 1 a schematic illustration of an insulating glass according to the invention;

(3) FIGS. 2a-2c sections of insulating glasses according to the invention in cross section;

(4) FIG. 3 a section of a further embodiment of an insulating glass according to the invention in cross section;

(5) FIG. 4 a further embodiment of an insulating glass according to the invention in cross section.

(6) In principle, identical parts are denoted by identical reference signs in the figures.

WAYS OF CARRYING OUT THE INVENTION

(7) FIG. 1 shows a schematic illustration of an insulating glass 1 according to the invention. The insulating glass 1 comprises two glass panes, which are held spaced apart from one another by a spacer 12. The spacer 12 is arranged at a first distance D1 in a first region 8 and a second region 9, which adjoin a first edge 4 and respectively an edge 5 lying opposite the first edge 4. In a third region 10 and a fourth region 11, the spacer 12 is arranged at a second distance D2 from a third edge 6 and respectively from a fourth edge 7. The first distance D1 is greater than the second distance D2.

(8) A first adhesive having a rigidity of at least 50 N/mm.sup.2 in the cured state is introduced between the two glass panes in the first region 8 and in the second region 9 between the first edge 4 or the second edge 5 and the spacer 12. A second adhesive having a lower rigidity than the first adhesive in the cured state is introduced in the third region 10 and in the fourth region 11 between the third edge 6 or the fourth edge 7 and the spacer 12. The spacer 12 and also the first adhesive or the second adhesive form what is termed the marginal join of the insulating glass 1.

(9) FIGS. 2a to 2c show sections of insulating glasses according to the invention in cross section. FIG. 2a shows a cross section through the first region 8. The spacer 12 is arranged between the first glass pane 2 and the second glass pane 3 at the first distance D1 from the first edge 4. An intermediate space 13, which can be filled for example with an inert gas, is formed in the inner region of the insulating glass as a result of the spacer 12. For reasons of illustration, the spacer 12 is shown in the form of a quadrangle. It ought to be clear to a person skilled in the art, however, that the spacer 12 can be present in any suitable shape. Various shapes and configurations of spacers are known from the prior art. Furthermore, an adhesive and sealant such as polyisobutyl is preferably arranged between the spacer 12 and the glass panes 2, 3, as is known from the prior art. The first adhesive is introduced in the intermediate space between the two glass panes 2, 3 and also the first edge 4 and the spacer 12. A person skilled in the art will understand that the cross section through the second region 9 which adjoins the second edge 5 lying opposite the first edge 4 is identical to the cross section shown here.

(10) FIG. 2b shows a cross section through the third region 10. The spacer 12 is arranged between the two glass panes 2, 3 spaced apart from the third edge 6 at a second distance D2. The second adhesive is introduced in the intermediate space between the two glass panes 2, 3 and also the third edge 4 and the spacer 12. A person skilled in the art will understand that the cross section through the fourth region 11 is identical to the cross section shown here.

(11) FIG. 2c shows a further embodiment of an insulating glass 1 according to the present invention. In this case, the first adhesive is introduced between the two glass panes 2, 3 between the first edge 5 and the spacer 12 in a first partial region 14. A further adhesive or a sealant is introduced in a second partial region 15. It is thereby possible for the properties of a marginal join to be varied depending on the site of use and the intended use of the insulating glass.

(12) FIG. 3 shows a section of a further embodiment of an insulating glass 1 in cross section. In the case of this embodiment, an anchoring element 16 is inserted in the second adhesive in the first region 8. The insulating glass 1 can be connected, for example, to further elements via the anchoring element 16.

(13) FIG. 4 shows a further embodiment of an insulating glass 1. In the case of this embodiment, a film 17 is arranged between the two glass panes 2, 3 and is spaced apart from the glass panes 2, 3 by a respective spacer 12. In this case, the film 12 is embedded in the first adhesive. The film 17 forms an additional heat barrier between the two glass panes 2, 3, and this increases the thermal insulation of the insulating glass 1.