US 11,938,363 B2
Fire-fighting foam composition
JoAnna M. Monfils, Peshtigo, WI (US); John P. Libal, Peshtigo, WI (US); and Blake H. Bomann, Greenville, WI (US)
Assigned to Tyco Fire Products LP, Cranston, RI (US)
Filed by Tyco Fire Products LP, Cranston, RI (US)
Filed on Apr. 26, 2023, as Appl. No. 18/307,691.
Application 18/307,691 is a continuation of application No. 17/723,009, filed on Apr. 18, 2022, granted, now 11,666,791.
Application 17/723,009 is a continuation in part of application No. 17/694,653, filed on Mar. 14, 2022.
Claims priority of provisional application 63/297,384, filed on Jan. 7, 2022.
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 63/288,026, 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 2023/0256280 A1, Aug. 17, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A62D 1/02 (2006.01); A62C 99/00 (2010.01); A62D 1/00 (2006.01)
CPC A62D 1/0071 (2013.01) [A62C 99/0036 (2013.01); A62D 1/0042 (2013.01)] 19 Claims
 
1. A firefighting foam concentrate comprising:
a sugar component comprising a monosaccharide sugar, a sugar alcohol, or a mixture of any two or more thereof;
an anionic surfactant;
a zwitterionic surfactant;
an organic solvent comprising a glycol ether, a glycol solvent, or a mixture of any two or more thereof;
a polysaccharide thickener;
microfibrous cellulose; and
at least about 30 wt. % water,
wherein the composition is substantially free of any nonionic surfactants and fluorinated compounds.