The present disclosure relates to bullet-resistant laminated glass having at least three sheets of glass. One of the sheets of glass faces the impact side as a cover sheet, and one sheet of glass is formed as a closure sheet facing away from the impact side. Between the cover sheet and the closure s
The present disclosure relates to bullet-resistant laminated glass having at least three sheets of glass. One of the sheets of glass faces the impact side as a cover sheet, and one sheet of glass is formed as a closure sheet facing away from the impact side. Between the cover sheet and the closure sheet, one or more intermediate sheets are disposed, these sheets of glass being connected to each other by composite layers. The composite layers are formed by flexible and dimensionally unstable films and/or cast compounds. The composite layers do not consist of polycarbonate, polyurethane or polymethylmethacrylate. In order to prevent splinter output on the rear side, this glass composite has a closure sheet on the rear side consisting of thermally or chemically prestressed glass.
대표청구항▼
1. A bullet-resistant laminated glass having at least three sheets of glass, wherein one of the glass sheets faces the impact side (A) as a cover sheet, and one glass sheet that faces away from the impact side (A) is formed as a closure sheet, wherein one or more intermediate sheets are disposed bet
1. A bullet-resistant laminated glass having at least three sheets of glass, wherein one of the glass sheets faces the impact side (A) as a cover sheet, and one glass sheet that faces away from the impact side (A) is formed as a closure sheet, wherein one or more intermediate sheets are disposed between the cover sheet and the closure sheet, wherein the glass sheets are connected to one another by composite layers, which are formed by flexible and dimensionally unstable films and/or cast compounds, and wherein the closure sheet is formed as a thermally or chemically pre-stressed glass sheet, wherein the cover sheet and the one or more intermediate sheets are composed of non-pre-stressed glass, wherein the thermally pre-stressed closure sheet is selected and has the ratio (x) between the thickness of the closure sheet and the tensile bending strength of the closure sheet in the range between 1:15≦x≦1:50, or wherein the chemically pre-stressed closure sheet is selected and has the ratio (x) between the thickness of the closure sheet and a tensile bending strength of the closure sheet in the range between 1:50≦x≦1:1000, and wherein the closure sheet has a thickness in the range of 4 to 10 mm. 2. The bullet-resistant laminated glass according to claim 1, further comprising that the closure sheet has a glass material that closes the bullet-resistant laminated glass and no foil and/or film is applied on the outside onto the closure sheet. 3. The bullet-resistant laminated glass according to claim 1, wherein the cover sheet and at least one intermediate sheet have a greater thickness than the closure sheet. 4. The bullet-resistant laminated glass according to claim 1, wherein the cover sheet, intermediate sheet, and closure sheet are formed by a glass selected from the group consisting of a borosilicate glass, a soda-lime glass, an aluminosilicate glass, a lithium aluminosilicate glass, and any combination thereof. 5. The bullet-resistant laminated glass according to claim 1, wherein at least one composite layer is formed by one or more films. 6. The bullet-resistant laminated glass according to claim 1, wherein at least one composite layer has a thickness of less than 2 mm. 7. The bullet-resistant laminated glass according to claim 1, wherein the closure sheet has a tensile bending strength that is 100 N/mm2. 8. The bullet-resistant laminated glass according to claim 1 has a glass composition (mol %) of the closure sheet is selected as follows: Aluminosilicate glassSiO2 63-67.5B2O30.0-7.0Al2O3 10-14.0Na2O 8.5-15.5K2O0.0-4.0MgO 0-9.0CaO + SrO + ZnO 0-2.5TiO2 + ZrO2 0-1.5CeO20.0-0.5As2O3 + Sb2O30.0-0.4SnO20.05-0.5 F 0.0-1.0. 9. The bullet-resistant laminated glass according to claim 1, wherein one of the one or more intermediate sheets has a thickness in the range of ≧4 mm. 10. The bullet-resistant laminated glass according to claim 1, further comprising at least one more intermediate sheet that is formed as a thermally or chemically pre-stressed glass sheet. 11. The bullet-resistant laminated glass according to claim 10, wherein the closure sheet and/or all other thermally and/or chemically pre-stressed intermediate sheets are disposed behind the mid-point plane of the laminated glass, facing away from the impact side (A), and are disposed parallel to the two end faces formed by the cover sheet and the closure sheet. 12. The bullet-resistant laminated glass according to claim 10, wherein the closure sheet, the thermally and/or chemically pre-stressed one or more intermediate sheets and the composite layers have a total thicknesses that is less than or equal to half the total thickness of the laminated glass. 13. The bullet-resistant laminated glass according to claim 1, wherein the cover sheet and/or at least one of the one or more intermediate sheets is disposed in front of the mid-point transverse plane facing the impact side (A) and is formed by a non-pre-stressed glass material or a glass ceramic or the cover sheet and all of the one or more intermediate sheets are formed by a non-pre-stressed glass material or a glass ceramic. 14. The bullet-resistant laminated glass according to claim 1 has a glass composition (mol %) of the closure sheet is selected with the following molar ratios: SiO2/Al2O35.0-6.8Na2O/K2O 2.1-12.0Al2O3/K2O 2.5-12.0Al2O3/Na2O0.6-1.5(Na2O + K2O)/(MgO + CaO + SrO)0.95-6.5. 15. A bullet-resistant laminated glass having at least three sheets of glass, wherein one of the glass sheets faces the impact side (A) as a cover sheet, and one glass sheet that faces away from the impact side (A) is formed as a closure sheet, wherein one or more intermediate sheets are disposed between the cover sheet and the closure sheet, wherein the glass sheets are connected to one another by composite layers that are not composed of polycarbonate, polyurethane or polymethyl methacrylate, and wherein the closure sheet is formed as a thermally or chemically pre-stressed glass sheet, wherein the cover sheet is composed of non-pre-stressed glass and wherein the pre-stressed glass sheet extends at maximum up to half the total thickness of the laminated glass, wherein the thermally pre-stressed closure sheet is selected and has the ratio (x) between the thickness of the closure sheet and the tensile bending strength of the closure sheet in the range between 1:15≦x≦1:50, or wherein the chemically pre-stressed closure sheet is selected and has the ratio (x) between the thickness of the closure sheet and a tensile bending strength of the closure sheet in the range between 1:50≦x≦1:1000, and wherein the closure sheet has a thickness in the range of 4 to 10 mm. 16. The bullet-resistant laminated glass according to claim 15, further comprising the closure sheet has a glass material that closes the bullet-resistant laminated glass and no foil and/or film is applied on the outside onto the closure sheet. 17. The bullet-resistant laminated glass according to claim 15, wherein the cover sheet and at least one intermediate sheet have a greater thickness than the closure sheet. 18. The bullet-resistant laminated glass according to claim 15, wherein the cover sheet, intermediate sheet, and closure sheet are formed by a glass selected from the group consisting of a borosilicate glass, a soda-lime glass, an aluminosilicate glass, a lithium aluminosilicate glass, and any combination thereof.
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이 특허에 인용된 특허 (5)
Speit Burkhard,DEX, Chemically prestressable aluminosilicate glass and products made therefrom.
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