Flame retardant

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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106 15FP, 260551P, 427342, 427390D, 427392, 428274, 428296, C07D25166, C09K 328

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active

039897028

ABSTRACT:
Mixtures comprising compounds of the formula ##EQU1## wherein A is either NH.sub.2 or N=P(NH.sub.2).sub.3, provided at least one A is N=P(NH.sub.2).sub.3, have been found to be good flame-retardants for material made from cotton or polyester-cotton having about 30 to 70% by weight cotton. Conveniently the material can be treated with an aqueous solution containing a sufficient amount of said mixtures and the material dried to make the material self extinguishing. Then the treated and dried material is cured at a sufficient temperature to bond said compounds to the material. Alternatively and usually preferably the drying and curing can be accomplished as a single operation.

REFERENCES:
patent: 2782133 (1957-02-01), Vallette
patent: 3050522 (1962-08-01), Coates et al.
patent: 3296265 (1967-01-01), Garner
patent: 3787407 (1974-01-01), Hendricks
patent: 3887553 (1975-06-01), Nachbier et al.
"Derivatives of Trichlorophosphazo-1,3,5-triazines," Derkach et al., CA 69:36082s, (1968).
"Fireproofing of Synthetic Fibers . . . ", Date et al., CA 78: 137898d (1973).
"Phosphorus-Containing Condensates as Flame Retardants," Nachbur et al., CA 79:93396c, (1973).

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