	US 11,679,290 B2
	Liquid concentrate fire retardant compositions containing mixtures of ammonium phosphates
Juan Robles, Highland, CA (US); Marcela Munoz, Fontana, CA (US); and Melissa Kim, Alta Loma, CA (US)
Assigned to Perimeter Solutions LP, Clayton, MO (US)
Filed by Perimeter Solutions LP, Clayton, MO (US)
Filed on Feb. 7, 2020, as Appl. No. 16/784,913.
Claims priority of provisional application 62/802,902, filed on Feb. 8, 2019.
Prior Publication US 2020/0254290 A1, Aug. 13, 2020
Int. Cl. A62D 1/00 (2006.01); A62C 3/02 (2006.01); C09K 21/04 (2006.01)

CPC A62D 1/005 (2013.01) [A62C 3/0292 (2013.01); C09K 21/04 (2013.01)]

37 Claims

1. A liquid fire retardant concentrate composition, the composition comprising:

one or more powdered fire retardants dispersed throughout an aqueous medium, wherein the one or more fire retardants are selected from the group consisting of monoammonium phosphate (MAP), diammonium phosphate (DAP), and ammonium polyphosphate (APP);

a suspending agent comprising micronized clay, and

a corrosion inhibitor system comprising a molybdate corrosion inhibitor and an azole corrosion inhibitor.