ACRYLIC SYNTHETIC FIBERS HAVING INCREASED FLAME RETARDANCE AND METHOD OF PRODUCING SAME

摘要

An acrylic synthetic fiber having increased flame retardance, consisting essentially of 20 to 90 weight percent acrylonitrile, 80 to 10 weight percent vinyl chloride, 0 to 30 weight percent other ethylenically unsaturated compounds copolymerizable with acrylonitrile or vinyl chloride and 0.5 to 30 weight percent flame retardant additive comprising a magnesium compound selected from the group consisting essentially of MgO, Mg(OH)2, MgCO3 and mixtures thereof, and method of producing same.