摘要:
An interlayer material for fire resistant laminates comprising a water soluble, glass forming metal phosphate, a water soluble char forming component and a binding agent. The material can be cast-in-place.
摘要:
A fire retardant composition that is halogen-free comprises an aqueous solution of an amine, a borate and a phosphate. The claimed composition is effective in providing wood-based panels like medium- or high-density fibreboards with high fire resistance without a diminution in their physical and mechanical properties.
摘要:
The invention concerns transparent fire break glass panels. The inventive glazing comprises at least two glass sheets and an intumescent phosphate-based material layer, layer which is located between said two glass sheets. The intumescent material comprises pyrogenous silica or a mixture of pyrogenous silica and alumina which enables said material to be exempt from creep deformation at temperatures preceding the expansion of the intumescent material in fire resistance tests. The inventive glass panels have improved heat resistance, and are more easily manufactured than similar glass panels in prior art.
摘要:
Bei einem Verfahren zur Herstellung eines Feuerschutzmittels werden Monoammoniumphosphat und Diammoniumphosphat sowie Harnstoff in einem bestimmten Massenverhältnis zusammengeführt. Sie werden einer Schmelztemperatur von 120° C unterzogen und ergeben ein Endprodukt mit einem Schmelzpunkt von 102° C bis 106° C. Diesen Mischungen werden Tenside hinzugeführt. Um eine erhöhte Feuerschutzwirkung zu erhalten, wird vorgeschlagen, die Tenside in die Schmelze der o. g. Mischung in einer Menge von 0,5 bis 5 Masse% bezogen auf die Masse der Trockenmischung hinzuzugeben. Dann wird der Schmelzvorgang bei 120° C mindestens so lange durchgeführt, bis eine entnommene Probe in einer 20%-igen wässrigen Lösung ein pH-Wert zwischen 5,0 bis 6, 2 ergibt.
摘要:
The invention relates to a fire-protective substance particularly for the treatment of objects made of steel, for plastic materials, wood, regenerating raw materials, for the coating of cables, for wettable and/or absorptive materials, and further relates to a method for producing of a fire-protective substance particularly for the last-mentioned materials and to a method for depositing of a fire-protective substance particularly on an object made of steel. The fire-protective substance according to the present invention comprises particularly for objects made of steel at least one priming component, further an intermediate component as well as a swelling component, particularly for plastic materials the dehydrating agent ammonium polyphosphate, particularly for the treatment of wood an insulating layer forming agent, particularly for the coating of cables clay in addition to the insulating layer forming agent and particularly for the wettable and/or absorptive materials as dehydrating agent which is solved in water, urea phosphate, monoammonium phosphate and diammonium phosphate. According to the method of the present invention for producing of a fire-protective substance, a binding agent is, first of all, solved in water; this admixture is diluted by water; urea phosphate, monoammonium phosphate are solved therein and, after a further addition of water, diammonium phosphate is added with such a portion that the resulting solution is neutralized. According to the method of the present invention, the first priming component is deposited on the surface of the object made of steel which is to be protected, then the intermediate component and the swelling component are deposited, and finally the second priming component is deposited on the swelling component. The fire-protective substance is particularly suitable for objects made of steel and for regenerating raw materials, for example deciduous trees or conifers in order to avoid the danger of a forest fire or a fire of christmas trees.
摘要:
Brandschutzgele auf der Basis von Aminsalzen saurer Phosphate sind dadurch gekennzeichnet, daß sie eine Aluminiumkomponente, eine Phosphorkomponente, eine Aminkomponente und gegebenenfalls Wasser in solchen Mengenverhältnissen enthalten, daß sie bei 5 bis 30°C für mehr als 24 Stunden eine fließfähige Mischung bilden und beim Erhitzen auf Temperaturen über 45°C in weniger als 24 Stunden in ein durchsichtiges Gel übergehen. Neben anderen Anwendungen sind solche Brandschutzgele insbesondere zur Herstellung von Verbundglaskonstruktionen mit Brandschutzwirkung geeignet.
摘要:
A composition consisting essentially of ammonium pyrophosphate and having at least 70% of its phosphorus content present in the form of pyrophosphate is useful as a flame retardant for various materials.
摘要:
Red phosphorus flame retardants for synthetic resin are produced by a method comprising the steps of heating yellow phosphorus at temperatures of 250 to 600 °C to effect a partial conversion of yellow phosphorus to red phosphorus; removing unconverted yellow phosphorus; and coating particles of the resulting red phosphorus with at least one of thermosetting resin and metal hydroxide. The thus obtained red phosphorus flame retardants are very stable because of significantly improved heat resistance, water resistance and weatherability and thus can provide nonflammable resinous compositions which can be used for long period of time. The nonflammable composition consists essentially of 100 parts by weight of polyolefine resin, 20 to 200 parts by weight of hydrated inorganic filler and 0.1 to 30 parts by weight of the coated red phosphorus flame retardant.