Fire suppression biodegradable suspension forming compositions

1. A powdered fire suppression composition comprising;

35-65 wt % starch;

25-55 wt % pseudo-plastic, high yield, suspending agent;

0.1-10 wt % paraffin or olefin; and

0.5-15 wt % neutralizer.

2. A powdered fire suppression composition according to claim 1 wherein the paraffin comprises C 10 to C 15 linear alkanes.

3. A powdered fire suppression composition according to claim 1 wherein the olefin comprises a C 15 to C 18 linear alkene.

4. A powdered fire suppression composition according to claim 1 wherein the composition forms a suspension composition when added to water; the suspension composition having a pH in the range of 5.0 to 8.0; whereby the composition clings to a surface positioned in any orientation, and forms an exterior intumescent char coating upon fire contact, while retaining an interior aqueous gel composition.

5. A powdered fire suppression composition according to claim 1 wherein the neutralizer comprises caustic soda.

6. A powdered fire suppression composition according to claim 1 wherein the pseudo-plastic, high yield, suspending agent comprises a mixture of an acrylic acid copolymer cross linked with a polyalkenyl polyether and a synthetic smectite clay.

7. A powdered fire suppression composition according to claim 1 wherein the neutralizer is at least partially encapsulated by the starch.

8. A powdered fire suppression composition according to claim 1 wherein the powdered composition comprises;

40-60 wt % starch;

30-50 wt % pseudo-plastic, high yield, suspending agent;

1-5 wt % paraffin; and

0.5-10 wt % neutralizer comprising basic material.

9. A powdered fire suppression composition according to claim 1 wherein the powdered composition comprises;

40-60 wt % starch;

30-50 wt % pseudo-plastic, high yield, suspending agent;

1-5 wt % olefin; and

0.5-10 wt % neutralizer comprising basic material.