HEAT RESISTANT ORGANIC SYNTHETIC FIBERS AND PROCESS FOR PRODUCING THE SAME
摘要
Heat resistant organic fibers comprising a wholly aromatic polymer having amide group and/or imide group, said fibers having properties satisfying the following formulas <MATH> wherein Tm is a melting point; Tex is an exotherm starting temperature; Xc is a degree of crystallization; DE is an elongation; DSR is a dry shrinkage factor at Tm; and DSR(Tm + 55 DEG C) is a dry shrinkage factor at Tm + 55 DEG C. The process for producing the fibers is also disclosed.