US 11,771,938 B2
Firefighting foam compositions containing deep eutectic solvents
Pamela Havelka-Rivard, Wallace, MI (US); Stephen A. Barker, Menominee, MI (US); and Mark Adam-Christopher Siem, Menominee, MI (US)
Assigned to Tyco Fire Products LP, Cranston, RI (US)
Appl. No. 16/319,885
Filed by Tyco Fire Products LP, Lansdale, PA (US)
PCT Filed Jul. 26, 2017, PCT No. PCT/US2017/043969
§ 371(c)(1), (2) Date Jan. 23, 2019,
PCT Pub. No. WO2018/022763, PCT Pub. Date Feb. 1, 2018.
Claims priority of provisional application 62/368,760, filed on Jul. 29, 2016.
Prior Publication US 2019/0262647 A1, Aug. 29, 2019
Int. Cl. A62D 1/00 (2006.01); A62D 1/02 (2006.01)
CPC A62D 1/0071 (2013.01) 30 Claims
 
1. An aqueous firefighting foam concentrate composition comprising:
greater than 20 wt. % of a deep eutectic solvent;
about 5 to 40 wt. % of at least one nonionic surfactant; and
one or more additional firefighting foam components dissolved or dispersed in the deep eutectic solvent;
wherein:
the deep eutectic solvent comprises:
a first compound selected from a sugar and a sugar alcohol, wherein the sugar or sugar alcohol comprises sucrose, fructose, glucose, lactose, maltose, cellobiose, arabinose, ribose, ribulose, galactose, rhamnose, raffinose, xylose, mannose, trehalose, mannitol, sorbitol, inositol, xylitol, ribitol, galactitol, erythritol, or adonitol, or a combination thereof; and
a second compound selected from a different sugar and a different sugar alcohol;
the one or more additional firefighting foam components comprises at least one biopolymer polysaccharide.