Fire resistant glazing

Details Fire resistant glazing Fire resistant glazing

C - Chemistry, Metallurgy

03

C

C03C 17/00 (2006.01) B32B 17/06 (2006.01) B32B 17/10 (2006.01) C01B 33/32 (2006.01) C03C 17/30 (2006.01) C09K 21/00 (2006.01)

Patent

CA 2494194

Fire resistant glazings comprise a fire resistant interlayer based upon a silicate waterglass are characterised by the incorporation of aluminium ions. The aluminate is incorporated as a solution which has been partially neutralised using a hydroxycarboxylic acid which is preferably citric acid. The incorporation of aluminium provides glazings have improved fire resistance and impact properties

L'invention se rapporte à des vitrages résistants au feu, qui comportent une couche de liaison intercouche résistante au feu, à base de verre soluble de silicate, et se caractérisent en ce qu'elles contiennent des ions aluminium. L'aluminate est intégré sous la forme d'une solution qui a été partiellement neutralisée au moyen d'un acide hydroxycarboxylique, de préférence l'acide citrique. L'intégration d'aluminium permet d'obtenir des vitrages présentant des propriétés améliorées de résistance au feu et aux chocs.

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