Production of black flame-resistant flexible textile materials

Details Production of black flame-resistant flexible textile materials Production of black flame-resistant flexible textile materials

1979-06-07

1981-04-28

Schofer, Joseph L.

Bleaching and dyeing; fluid treatment and chemical modification

Chemical modification of textiles or fibers or products thereof

Cellulose fibers

8116P, 8181, 8195, 8196, 8196, 106 1816, 106 1818, 106 1821, 106 1822, 106 1832, 106 1833, 252 81, 252423, 427227, C08K 328, C01B 3100, D06M 1344

Patent

active

042643201

ABSTRACT:
Black, flame-resistant, substantially inert, non-conductive, flexible textile materials are produced by impregnating a scoured regenerated cellulosic textile material with a composition containing (a) a compound having in one tautomeric form, the general formula ##STR1## in which X is oxygen, sulphur or --NH--, and Z is --NH.sub.2, --NHGN, --NH.NH.sub.2, --NH.CO.NH.sub.2 or lower alkyl or X and Z taken together represent a trivalent nitrogen atom, and (b) an ammonium salt of an oxy-acid of phosphorus, heating the impregnated textile in an oxygen-containing gas to a temperature of 220.degree.-300.degree. C. until a black, flame retardant product is obtained and there has been a loss in weight based upon the original weight of the textile material, of 20% to 30%.

REFERENCES:
patent: 3639140 (1972-02-01), Miyamichi
patent: 3661616 (1972-05-01), Miyamichi
patent: 3676365 (1972-07-01), Shirai et al.
patent: 3702832 (1972-11-01), Ermoleniko et al.
patent: 3803056 (1974-04-01), Hart
patent: 3969268 (1976-07-01), Fukada et al.
patent: 4110509 (1978-08-01), Roth
Miller et al. "Chars Produced From Cellulose under Various Conditions of Thermal Decomp" , J.P. Sci PTC #36, pp. 3-19, 1971.

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