Flame retardant

Details Flame retardant Flame retardant

1976-06-25

1977-08-09

Schulz, William E.

Bleaching and dyeing; fluid treatment and chemical modification

Chemical modification of textiles or fibers or products thereof

Cellulose fibers

106 15FP, 252 81, 428276, D06M 100

Patent

active

040407802

ABSTRACT:
Flame retardant protection has been demonstrated on cotton and on polyester-cotton materials by the product obtained from the reaction of cyanamide and PCl.sub.5 followed by reaction with anhydrous ammonia in excess of that required to react with the chlorine on the cyanamide and PCl.sub.5 intermediate product. Conveniently the material can be treated with an aqueous solution containing a sufficient amount of the new flame retardant compound and the material dried to make the material self extinguishing. Then the treated and dried material is cured at a sufficient temperature to bond the flame retardant 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: 3698854 (1972-10-01), Donaldson et al.
patent: 3776950 (1973-12-01), Mitsch
patent: 3882103 (1975-05-01), Beriger
patent: 3897584 (1975-07-01), Swidler et al.
patent: 3989702 (1976-11-01), Garner

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