Solutions comprising a sodium silicate waterglass having a modulus of less than 3 and at least 8% by weight of an organic polyhydroxy compound such as glycerol are useful in the production of interlayers used in fire resistant glass laminates. The solutions are dried on a flat surface such as glass to produce a clear intumescent interlayer having improved impact resistance. The dried interlayer may be removed from the surface in the form of an elastomeric material which may also be used as an interlayer in a fire resistant glazing.

Fire resistant glazings

A transparent heat-swellable material, a method for its preparation and fire-resistant glazing panels in which it is incorporated, are provided by a mixture of hydrated alkali metal silicate and an additive selected from polyalcohols and mono-or polysaccharides, in which the additive content is in the range of 5 to 22 % by weight, the water content is in the range of 12 to 19.5 % by weight, and the hydrated alkali metal silicate has a silicon oxide (SiO2): alkali metal oxide molar ratio greater than 3.3 to 1. Glazing panels including the said material offer thermal insulation of greater than 30 minutes, a barrier to flames and fumes for greater than 90 minutes and thermal radiation of less than 10 kW/m , or even of less than 6 kW/m , after 90 minutes.

Transparent heat-swellable material

The invention relates to a fire protection means integrateable into a construction element. The inventive fire protection means comprises at least one hybrid foil system. At least one foil of said system is coated with intumiscent material. A method for producing said fire protection means and a glazing unit provided therewith are also disclosed.

Fire protection means and method for the production thereof

A method for producing a fire protection glazing including at least two flat substrates and a fire protection element, preferably transparent, including at least one film or a film system which includes at least one intumescent layer and is disposed between the substrates. Several segments of the film of the fire protection element are applied to a first substrate, wherein the film segments cover the entire surface of the substrate which is provided with a fire protection element. Afterwards a second substrate is arranged on the first substrate including the film segments and is exposed to a high pressure and high temperature binding treatment which can be carried out, for example in an antoclave.

Method for Producing a Fire Protection Glazing

Fire protection glazing comprising plates (1) and in the case of fire, a foamed filler layer (2) forming a sandwich. At least the fire side of the plate consists of glass plate and the filler layer (2) contains a predetermined amount of fibers.

Fire protection glazing comprising glass plates and a foamed filler layer forming a sandwich useful in fire protection e.g. for building windows

Flame retardant glass has two panes arranged at a distance from each other, where the flame-sided pane is a glass pane and a foamed intermediate layer is arranged in the space between the panes. The intermediate layer is made of sodium silicate glass and water and has an additive increasing the resistance time in the case of a fire, which is displaced with multivalent alcohols and/or sugars. The novelty is that the sodium silicate glass as additive to the intermediate layer to suppress the sensitivity of the intermediate layer towards UV radiation is chosen so that there is no more sensitivity towards UV light.

Fire resistant glass unit

Verfahren zum Aufbringen eines aus einem Kitt geformten Ablaufschutzrandes auf eine Glasplatte im Zuge der Herstellung von Brandschutz-Glaseinheiten

A fire resistant glass structure in which the intervening layer between the panes has a portion of its polyhydric organic compounds replaced by potassium water glass in a layer which consists primarily of sodium water glass. The replacement eliminates ultraviolet light sensitivity without reduction in the increase in the duration of fire resistance provided by the organic compound.

Fire resistant glass structure

An antidrip edge composition of fine-powder glass formers, cellulosic polymer and water to which a mineral acid is added has a pot-life lengthener for the dispersion is subjected to vacuum and/or agitation and/or vibration to remove bubbles, upon application to a glass sheet, prevents escape of an alkali silicate solution forming a fire-resisting intervening layer between that glass sheet and another glass or plastic sheet applied thereto.

Process for applying antidrip edge to a glass sheet

of EP0705686A process is claimed for forming a protective barrier edging of cement (I) on a glass pane during the prodn. of fireproof glass units consisting of a sheet of glass, a fireproof interlayer and a cover sheet of glass or plastic. The cement (I) consists of a finely divided glass-former (II) as filler and a polymeric cellulose deriv. (III), made into an aq. dispersion with water and mixed with mineral acid(s) in an amt. sufficient to give a pot life of 10-20 mins. after mixing, and then freed from air bubbles by vibration and/or vacuum treatment and/or stirring before the end of the pot life. The degassed dispersion is matured to form the cement and then moulded onto the edge of the glass pane.

Hans-Henning Nolte

Papers

Fire resistant glass unit

Verfahren zum Aufbringen eines aus einem Kitt geformten Ablaufschutzrandes auf eine Glasplatte im Zuge der Herstellung von Brandschutz-Glaseinheiten

Fire resistant glass structure

Process for applying antidrip edge to a glass sheet

Process for forming a protective barrier edging of a mastic on a glass pane during the production of fireproof glass units