US 11,911,644 B2
Fire-fighting foam concentrate
JoAnna M. Monfils, Peshtigo, WI (US); John P. Libal, Peshtigo, WI (US); Robert A. Chaltry, Porterfield, WI (US); and Adam L. Monfils, Peshtigo, WI (US)
Assigned to Tyco Fire Products LP, Cranston, RI (US)
Filed by Tyco Fire Products LP, Lansdale, PA (US)
Filed on Mar. 14, 2022, as Appl. No. 17/694,663.
Claims priority of provisional application 63/288,026, filed on Dec. 10, 2021.
Claims priority of provisional application 63/288,024, filed on Dec. 10, 2021.
Claims priority of provisional application 63/288,020, filed on Dec. 10, 2021.
Claims priority of provisional application 63/245,028, filed on Sep. 16, 2021.
Claims priority of provisional application 63/215,006, filed on Jun. 25, 2021.
Claims priority of provisional application 63/188,633, filed on May 14, 2021.
Prior Publication US 2022/0362603 A1, Nov. 17, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A62D 1/02 (2006.01); A62C 99/00 (2010.01); A62C 5/02 (2006.01); A62D 1/00 (2006.01)
CPC A62D 1/0071 (2013.01) [A62C 5/02 (2013.01); A62C 99/0036 (2013.01); A62D 1/0042 (2013.01)] 16 Claims
 
1. An aqueous fire-fighting foam concentrate comprising:
about greater than 10 wt. % to about 40 wt. % of a sugar component comprising a monosaccharide sugar, a sugar alcohol, or a combination thereof,
a polysaccharide thickener;
a surfactant component comprising an anionic, surfactant and a zwitterionic surfactant;
a water-miscible organic solvent; and
at least about 30 wt. % water;
wherein the concentrate is substantially free of nonionic surfactants.