US 11,938,362 B2
Fire-fighting foam concentrate
JoAnna M. Monfils, Peshtigo, WI (US); John P. Libal, Peshtigo, WI (US); Blake H. Bomann, Greenville, 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, Cranston, RI (US)
Filed on Apr. 26, 2023, as Appl. No. 18/307,680.
Application 18/307,680 is a continuation of application No. 17/722,965, filed on Apr. 18, 2022, granted, now 11,673,010.
Application 17/722,965 is a continuation in part of application No. 17/694,663, filed on Mar. 14, 2022.
Claims priority of provisional application 63/297,384, filed on Jan. 7, 2022.
Claims priority of provisional application 63/288,026, 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 2023/0372757 A1, Nov. 23, 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)] 17 Claims
 
1. A firefighting foam composition comprising:
a sugar component comprising at least 50 wt. % of a monosaccharide sugar, a sugar alcohol, or a mixture of any two or more thereof;
a polysaccharide thickener;
a suspension agent comprising microfibrous cellulose;
a surfactant component comprising an anionic, surfactant and a zwitterionic surfactant;
a water-miscible organic solvent comprising a glycol, a glycol ether, a glycerol, a or a mixture of any two or more thereof; and
wherein the firefighting foam concentrate is substantially free of non-ionic surfactants.