Substituted ammonium polyphosphate composition

Details Substituted ammonium polyphosphate composition Substituted ammonium polyphosphate composition

1975-04-11

1977-08-23

Czaja, Donald E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25R, 260 25A, 260 296MT, 260 296MN, 260 296MQ, 260 2971, 260 297N, 260 297SQ, 260 457P, 260 458NT, 260 458N, 260 458NL, 26050121, 260920, 260926, 260933, 428411, 544196, C07D25166, C07F 902

Patent

active

040439879

ABSTRACT:
Substantially water-insoluble, substituted ammonium polyphosphate compositions are provided, suitable as flame retardants in aqueous coating emulsions. The compositions are prepared by condensing together at an elevated temperature a condensed phosphoric acid and a spumific agent containing reactive nitrogen and optionally urea and/or a metal containing compound to form a solid foam, crushing the solid foam, to form a particulate material, and optionally curing the particulate material at an elevated temperature under pressure, without substantial weight loss.

REFERENCES:
patent: 2995551 (1961-08-01), Reuter et al.
patent: 3634422 (1972-01-01), Nachbur et al.
patent: 3701817 (1972-10-01), Maier
patent: 3755323 (1973-08-01), Weil et al.
patent: 3887553 (1975-06-01), Nachbur et al.

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