Aqueous glass expanding agent from water-glass and glycerine

Details Aqueous glass expanding agent from water-glass and glycerine Aqueous glass expanding agent from water-glass and glycerine

C - Chemistry, Metallurgy

03

C

261/2, 48/47

C03C 11/00 (2006.01)

Patent

CA 1125000

ABSTRACT OF THE DISCLOSURE An expanding agent is used to produce glass, with mainly closed cells, free glass flour. It constitutes a durable colloidal dispersion capable of being diluted with water. It contains water, water-glass and a liquid hydrocarbon, preferably glycerine, soluble in water-glass. Preferably it also contains an alkali-bentonite, for example sodium-bentonite, the amount thereof being preferably between 1 and 10% by weight. The expanding agent produces a particularly finely cellular glass foam, with cells of uniform size. It has a high compressive strength.

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