Transparent fire protection glazing with uv - a stabilized fire protection layer, a method for their preparation and their use

摘要

The present invention relates to a transparent fire protection glazing, comprising at least 2 disks which, with a defined distance from each other and form an interspace, wherein at least the fire side disk as a glass - or glass ceramic plate and in the interspace, an intumescent layer in the event of a fire is contained in the form of a fire protection layer, which, if necessary, with organic additives offset alkali metal silicates, whereby in the foaming layer is a uv - protection formulation, comprising one or more system compatible uv - absorber or a combination of one or more compatible with the uv - absorber with one or more free-radical scavengers. The present invention also relates to a process for the production of the transparent fire protection glazing and their use as well as 2 process variants for the production of the uv - protection formulation. The use of uv - protection formulations in optionally organically modified silicate-containing gel leads to a considerable improvement of the aging stability with respect to uv - radiation and heat.