Safety glazing
AssigneeAgc Glass Europe
InventorsThomas Lescot, Louis Dellieu, Bertrand Mathy
Life of this patent
Estimating the term…
Abstract
A fireproof/bullet-proof safety glazing that includes a laminated assembly I of glass sheets, the laminate I, the glass sheets of which are assembled by means of thermoplastic interlayer sheets and n layers of intumescent material made from hydrated alkali silicate, with 1≤n≤3. The laminate I also includes a fireproof module comprising the n layers of intumescent material made of hydrated alkali silicate and n+1 glass sheets, the module being flanked on either side by at least one interlayer thermoplastic sheet and at least one glass sheet. The laminate I does not include organic glass sheets made from a polymer material that is rigid at ambient temperature. The glazing includes at least six glass sheets.
Claims19
A fireproof/bulletproof safety glazing comprising:
- a laminated assembly of glass sheets I, the laminate I,
- the glass sheets of which are assembled by means of thermoplastic interlayer sheets and by means of n layers of intumescent material based on hydrated alkali metal silicate, where 1≤n≤3;
- comprising a fireproof module comprising said n layers of intumescent material based on hydrated alkali metal silicate and n+1 glass sheets, said module being flanked on either side by at least one thermoplastic interlayer sheet and at least one glass sheet, and
- not comprising an organic glass sheet based on polymer material rigid at ambient temperature;
- the laminate I optionally being associated either with a glass sheet or with a second laminated assembly II made up of glass sheets assembled by means of thermoplastic interlayer sheets, a space being maintained between the laminate I and either the glass sheet or the laminate II,
- the glazing comprising at least 6 glass sheets.
Dependencies are inferred from the claim text.