Filaments which may be cross-linked comprising at least 65% acrylonitrile and 0.5{14 10% N-methylol derivative of a urethane

摘要

The invention relates to cross-linkable or cross-linked filaments or fibers of a copolymer comprising at least 65% by weight of acrylonitrile and from 0.5 to 10% by weight of at least one copolymerised N-methylol compound of an unsaturated mono- or bis-urethane or an alkyl ether thereof and, optionally, at least one other copolymerisable monomer.