Fire resistant materials

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B - Operations, Transporting

31

F

154/118, 117/32,

B31F 1/28 (2006.01) B32B 29/06 (2006.01) B32B 29/08 (2006.01) C09K 21/02 (2006.01) D21H 19/74 (2006.01) D21H 27/40 (2006.01)

Patent

CA 1275898

ABSTRACT The production of fire resistant cellulose products is described comprising a normally combustible carrier element having applied thereto sodium silicate which is heat foamable to produce a further element capable of resisting the passage of fire and/or heat therethrough in the event the article is exposed to fire and/or heat. Fire resistance is enhanced by the addition to the sodium silicate of minor amounts of calcium carbonate. The calcium carbonate also may be directly added to the cellulose product as a separate surface coating.

493440

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