Patent ID: 11951345
Assignee: TYCO FIRE PRODUCTS LP
Field: Machine tools (Mechanical engineering)
Classification: CPC A | IPC A

Claim 15:
16. A method of making a firefighting foam concentrate, the method comprising:
forming a suspension agent by blending microfibrous cellulose with a solvent at sufficient shear to disperse fibers of the microfibrous cellulose in the solvent;
blending the suspension agent with:
a sugar component comprising at least about 50 wt. % of a monosaccharide, sugar alcohol, or a mixture of any two or more thereof;
a surfactant component comprising an anionic surfactant and a zwitterionic surfactant; and
a polysaccharide thickener comprising succinoglycan; and

wherein the firefighting foam concentrate is substantially free of non-ionic surfactants.