Method for the preparation of aqueous fire retarding concentrate

Details Method for the preparation of aqueous fire retarding concentrate Method for the preparation of aqueous fire retarding concentrate

1988-12-22

1990-11-20

Locker, Howard J.

Compositions

Fire retarding

For living matter

106 1405, 106 1814, 106 1815, 106 1816, 106 1817, 106 1831, 106 1833, 169 45, 169 46, 252 2, 252 7, 252601, 252602, 252607, C09K 2100, C09D 516, C09D 518, A62D 100

Patent

active

049717286

ABSTRACT:
The present invention is directed to an aqueous concentrate adapted to be diluted with water and used in fire control. The concentrate exhibits a viscosity of less than about 2000 centipoise and containing between about 0.75% and about 6% by weight a thickening agent and at least about 24% by weight of certain fire retardants, particularly diammonium phosphate, diammonium sulfate, a blend of diammonium phosphate and diammonium sulfate, a blend of monoammonium phosphate and diammonium phosphate having a nitrogen to phosphorus ratio of at least about 1.25, and a blend of monoammonium phosphate, diammonium sulfate and diammonium phosphate having a nitrogen to phosphorus ratio of at least about 1.25. Processes for the preparation of such concentrates and for use thereof are also disclosed.

REFERENCES:
patent: 3196108 (1968-07-01), Nelson
patent: 3585135 (1971-06-01), Smith et al.
patent: 3960735 (1976-06-01), Lacey
patent: 4101485 (1978-07-01), Brooks et al.
patent: 4176071 (1979-11-01), Crouch
patent: 4226727 (1980-10-01), Tarpley, Jr. et al.
patent: 4272414 (1981-06-01), Vandersall
patent: 4447336 (1984-05-01), Vandersall
patent: 4447337 (1984-05-01), Adl et al.
patent: 4606831 (1986-08-01), Kegeler et al.

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