Fire extinguishing compositions and method
AssigneeTyco Fire Products LP
InventorJohn Paul Libal
Life of this patent
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Abstract
A firefighting foam preservative composition and a method of making the firefighting foam preservative composition are provided. The firefighting foam preservative composition includes a suspension system containing water and at least one suspension agent. The firefighting foam preservative composition also includes a first polysaccharide that is soluble in the suspension system; and a second polysaccharide that is insoluble in the suspension system, but soluble in water alone. Methods of using the firefighting foam preservative composition to produce a firefighting foam and using the firefighting foam to secure a hazard by extinguishing fire and/or suppressing flammable vapors are also provided.
Claims24
A firefighting foam preservative composition comprising:
- a suspension system comprising water;
- and a suspension agent;
- wherein the suspension agent comprises water-soluble organic solvent and/or water-soluble polymer;
- a first polysaccharide that is soluble in the suspension system;
- and
- a second polysaccharide that is at least partially insoluble in the suspension system but soluble in water alone;
- wherein the second polysaccharide is different from the first polysaccharide;
- and
- the foam preservative composition has a viscosity of no more than about 6000 cPs.
A firefighting foam preservative composition comprising:
- a suspension system comprising water;
- and a suspension agent;
- wherein the suspension agent comprises one or more of glycerol, a glycol, a glycol ether and a water-soluble polyethylene glycol;
- a first polysaccharide that is soluble in the suspension system, wherein the first polysaccharide comprises xanthan gum;
- and
- a second polysaccharide that is at least partially insoluble in the suspension system but soluble in water alone;
- wherein the second polysaccharide comprises one or more of rhamsam gum, welan gum, and diutan gum.
Dependencies are inferred from the claim text.