	US 11,794,048 B2
	Nonfluorinated agent for liquid vehicle systems
Katherine L. Zabronsky, Marinette, WI (US)
Assigned to Tyco Fire Products LP, Cranston, RI (US)
Appl. No. 17/602,024
Filed by Tyco Fire Products LP, Lansdale, PA (US)
PCT Filed Apr. 9, 2020, PCT No. PCT/IB2020/053412 § 371(c)(1), (2) Date Oct. 7, 2021, PCT Pub. No. WO2020/217126, PCT Pub. Date Oct. 29, 2020.
Claims priority of provisional application 62/837,477, filed on Apr. 23, 2019.
Prior Publication US 2022/0143444 A1, May 12, 2022
Int. Cl. A62D 1/00 (2006.01); A61D 1/02 (2006.01); A62D 1/02 (2006.01)

CPC A62D 1/0042 (2013.01) [A62D 1/0071 (2013.01)]

23 Claims

1. An aqueous firefighting composition comprising:

a) about 20-50 wt. % of a sodium and/or potassium salt of an organic acid;

b) a surfactant mixture containing one or more of an alkylpolyglycoside surfactant, an alkyl sulfate anionic surfactant, an alkyliminodialkylcarboxylate surfactant and a zwitterionic surfactant;

c) an acetylenic diol derivative surfactant and/or a siloxane-based surfactant;

d) about 2-25 wt. % alkylene glycol and glycerol, wherein the weight ratio of alkylene glycol to glycerol is about 0.1:1 to 5:1; and

e) at least about 40 wt. % water.