IP Library Granted Patent US 9,012,045
Granted Patent B2
US 9,012,045 · App. 14/236,530 · Granted Apr 21, 2015

Transparent composite pane for safety applications

Inventors: Andreas Krell (Dresden, DE); Elmar Strassburger (Kandern, DE)
Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
F41H5/0407C30B29/26F41H5/0428B32B9/00
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Quick Facts
Patent No.
US 9,012,045
App. No.
14/236,530
Granted
Apr 21, 2015
Kind
B2
Abstract

Transparent composite pane for safety applications. The composite pane is composed of multiple layers which are arranged behind one another. At least one of the layers is composed of, a plate or plates arranged in a mosaic or in series, of monocrystalline magnesium aluminate spinel.

Claims (24)

1. Transparent composite pane for safety applications, wherein the composite is composed of multiple layers which are arranged behind one another and of which at least one layer is composed of one plate, or of plates arranged in a mosaic or in series, of monocrystalline magnesium aluminate spinel.

2. Transparent composite pane according to claim 1 , wherein other layers of the multiple layers are composed of glasses, ceramics and/or plastics.

3. Transparent composite pane according to claim 1 , wherein the multiple layers are connected to one another by an adhesion-promoting connection medium.

4. Transparent composite pane according to claim 1 , wherein the at least one layer comprises plural plates of monocrystalline magnesium aluminate spinel arranged in a mosaic or in series.

5. Transparent composite pane according to claim 1 , wherein the at least one layer comprises plural plates composed of monocrystalline magnesium aluminate spinel with joints between the plural plates of monocrystalline magnesium aluminate spinel wherein said joints are respectively covered outwardly by at least one larger cover plate of a transparent material.

6. Transparent composite pane according to claim 1 , wherein the at least one layer is composed of monocrystalline magnesium aluminate spinel with a <111> orientation of the surface normals.

7. Transparent composite pane according to claim 1 , wherein the monocrystalline magnesium aluminate spinel has a chemical composition of MgO.nAl 2 O 3 with a parameter n within the range of 0.9 to 3.5.

8. A multi-layer transparent composite pane for safety applications, wherein at least one layer is composed of one or more plates whose material is formed without MgO precipitations or Al 2 O 3 precipitations, and has a monocrystalline magnesium aluminate spinel composition of MgO.nAl 2 O 3 with a parameter n within a range of 0.9 to 3.5.

9. The composite pane of claim 8 , wherein the one or more plates comprises a moasic structure.

10. The composite pane of claim 8 , wherein the one or more plates comprises an arrangement of plates in series on a backing.

11. The composite pane of claim 8 , wherein the at least one layer is composed of only one plate whose material is formed without MgO precipitations or Al 2 O 3 precipitations, and has a monocrystalline magnesium aluminate spinel composition of MgO.nAl 2 O 3 with a parameter n within a range of 0.9 to 3.5.

12. The composite pane of claim 8 , wherein at least one other layer of the multi-layer composite pane comprises one or more plates whose material has a monocrystalline magnesium aluminate spinel composition.

13. The composite pane of claim 8 , wherein at least one other layer of the multi-layer composite pane comprises one or more plates whose material is formed without MgO precipitations or Al 2 O 3 precipitations, and has a monocrystalline magnesium aluminate spinel composition of MgO.nAl 2 O 3 with a parameter n within a range of 0.9 to 3.5.

14. A multi-layer transparent composite pane for, safety applications, wherein at least one layer is composed of one or more plates whose material has a monocrystalline magnesium aluminate spinel composition of MgO.nAl 2 O 3 with a parameter n equal to 3 and with a <111> orientation of the surface normals.

15. The composite pane of claim 14 , wherein the material of the at least one layer is formed without MgO precipitations or Al 2 O 3 precipitations.

16. The composite pane of claim 14 , wherein the one or more plates comprises a moasic structure.

17. The composite pane of claim 14 , wherein the one or more plates comprises plural plates arranged in series.

18. The composite pane of claim 14 , wherein the one or more plates is only one plate.

19. A method of using the transparent composite pane for safety applications and/or protective applications, said method comprising:

utilizing the transparent composite pane of claim 1 in panes or windows in the civilian sector and military sector.

20. The method according to claim 19 , wherein the panes or windows are in one of:

vehicles,

flying objects, or

personal protection.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 7, 2014
From: KRELL, ANDREAS; STRASSBURGER, ELMAR
To: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Reel/Frame 032843/0086 →
Priority Claims (1)
DE 10 2011 080 378 · Aug 3, 2011 · national
Continuity (1)
Related Publication 20140255704A1 · Sep 11, 2014