B - Operations – Transporting – 31 – F
Patent
B - Operations, Transporting
31
F
154/118, 154/133
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 1275900
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 a bicarbonate compound such as sodium bicarbonate. Alternatively, bicarbonate compound may be added directly to the paper stock slurry for incorporation into the cellulose products.
493441
Digital Equipment Corporation
Smart & Biggar
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