| abstract |
The invention concerns a fiber obtainable by spinning a copolymer from the polymerization solution, derived from a plurality of amine monomers, the plurality including 3,3'diaminodiphenyl sulfone amine monomer and at least one amine monomer having an aromatic group that is a para-oriented benzene ring, and at least one acid monomer; and yarns, fabrics and garments comprising this fiber, and methods of making the same. This fiber has use in heat-resistant protective apparel fabrics and garments. |