FIELD: synthetic fibers. SUBSTANCE: modified fiber is consists of copolymer composed of 75-85 wt.% of acrylonitrile and 15-25 wt.% of 2-methyl-2,5-dioxo-1-oxaphospolane and is characterized by oxygen index up to 30 vol %, initial thermolysis temperature up to 242 C, whiteness up to 98.6%, and stitch strength vN/tex. EFFECT: increased whiteness and decreased inflammability and electrifiabiliness.
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