Flame retardant

Details Flame retardant Flame retardant

1975-11-17

1977-10-11

Wyman, Daniel E.

Chemistry of inorganic compounds

Phosphorus or compound thereof

Nitrogen containing

106 15FP, C01B 2100, C01B 2110

Patent

active

040535606

ABSTRACT:
The new product, a Cl.sub.3 P=N-N=PCl.sub.3 + NH.sub.3 reaction product, has been found to be an excellent flame-retardant for material made from cellulose such as cotton, paper and sponge; polyester, wool and blends thereof. Conveniently the material can be treated with an aqueous solution containing a sufficient amount of the product 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 product 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: 3545942 (1970-12-01), Rice et al.
patent: 3685974 (1972-08-01), Silvestri
Becke-Goehring et al., CA 62:10056f, (1965).
Becke-Goehring et al., CA 60:14109g, (1964).

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