Aqueous swollen macromolecule-containing system as water for fir

Details Aqueous swollen macromolecule-containing system as water for fir Aqueous swollen macromolecule-containing system as water for fir

1988-05-12

1990-12-18

Locker, Howard J.

Compositions

Fire-extinguishing

252 8, 252601, 252610, 252611, 169DIG2, 169 5, 523179, 106203, 26099812, A62D 100, C09K 2114, C09K 2100

Patent

active

049784609

ABSTRACT:
In a particulate additive for water for fire fighting containing a strongly swelling water-insoluble high molecular weight polymer as gelatinizing agent, the improvement which comprises a water-soluble release agent which does not cause the particles of said gelatinizing agent to swell, the particles of the gelatinizing agent being encased or dispersed in the release agent. Suitable release agents include polyethylene glycol, diammonium biphosphate, sugars, mannitol, etc. The gelatinizing agent may be a moderately cross-linked water-insoluble acrylic or methacrylic acid copolymer.

REFERENCES:
patent: 3080316 (1963-03-01), Petertyl et al.
patent: 3666707 (1972-05-01), Livingston
patent: 3684707 (1972-08-01), Livingston
patent: 4145296 (1979-03-01), Fox et al.
patent: 4179367 (1979-12-01), Barthell et al.
patent: 4338239 (1982-07-01), Dammann
patent: 4351754 (1982-09-01), Dupre 524445

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