Ballistic resistant laminated structure
AssigneeSaint-Gobain Glass France
InventorsMatthias Mandelartz, Stephane Leray, Pierre Chaussade
Life of this patent
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Abstract
The invention relates to a ballistic resistant laminated structure comprising at least three glass sheets (1, 3, 5) a polycarbonate sheet (11) which are bound by adhesive layers (2, 4, 10) and a shielding insert (20), wherein a space delimited by said insert (20), the end face of the sheet (5) and the edge of the sheet (11) are provided with a material (30, 31) for absorbing the energy of a projectile. Said materials (30, 31) are embodied in the form of an yielding material (30) for degassing during assembling said stricture and an encapsulating material (31). A highly ballistic resistant glazing for a building or a transport vehicle comprising the inventive structure is also disclosed.
Claims11
1-9. (canceled)
A laminated structure comprising, in succession:
- at least a first glass sheet;
- a second glass sheet connected to the first glass sheet via an adhesive layer, an edge of the second glass sheet being set back from an edge of the first glass sheet on at least one side;
- a third glass sheet connected to the second glass sheet via an adhesive layer, the edge of the second glass sheet being, on the at least one side, set back from the edge of the third glass sheet which is itself set back from the edge of the first glass sheet;
- a sheet for dampening impact of a projectile, connected to the third glass sheet via an adhesive layer;
- and
- an armoring insert made of material of high bullet resistance that occupies, on at least one side, at least part of a cavity bounded by the edges of the first and third glass sheets and the end face of the second glass sheet,
- wherein, on the at least one side, the edge of the third glass sheet is set back from that of the sheet for dampening the impact of a projectile, wherein the space between the armoring insert, the end face of the third glass sheet, and the edge of the sheet for dampening the impact of a projectile is at least partly occupied by a material capable of absorbing energy of a projectile, wherein the material capable of absorbing the energy of a projectile is bonded to the armoring insert, to the end face of the third glass sheet and to the sheet for dampening the impact of a projectile, via a material capable of flowing and of ensuring degassing during assembly of the laminated structure, and
- wherein an encapsulation material, impervious to the material flowing during the assembly and impermeable to penetration of moisture into the laminated structure, encapsulates at least that portion of the end face of the laminated structure that lies between the end face of the sheet for dampening the impact of a projectile and at least part of the armoring insert.
Dependencies are inferred from the claim text.