Sawdust compositions

Details Sawdust compositions Sawdust compositions

A - Human Necessities

62

D

31/5

A62D 1/00 (2006.01)

Patent

CA 1112034

ABSTRACT A fire extinguishing or fire preventing composition comprising sawdust combined with a dry colouring material which reacts with the sawdust at elevated temperatures to improve the fire extinguishing properties. In one form the colouring material comprises a transition metal compound such as ferric oxide Fe203 which forms complexes with glucose units derived from the cellulose in sawdust. In another form the colouring material is organic, for example, an azo-compound which forms a complex with the cellulose in the sawdust, and this also improves the fire extinguishing properties.

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