| abstract |
Process for preparing an acrylic fiber containing halogen, of improved fireproofing, characterized in that it comprises preparing a spinning composition of an acrylonitrile polymer containing halogen composed of at least 50% by weight of acrylonitrile, said halogen being chosen between chlorine and bromine and being present in an amount of about 3 to 40% by weight, based on the weight of said polymer; uniformly dispersing, in said spinning composition, from about 0.1 to 10% by weight, based on the weight of said polymer, of a diorganotin oxide compound; and spin the resulting dispersion. (Machine-translation by Google Translate, not legally binding) |