"Fibers." . . . . . . . . . . . . . . . . . . . . . . . . . "Polyimide fibers"@en . . "Polyimide fibers" . . "\"This invention relates generally to the extrusion preparation of fibers and relates specifically to the preparation of polyimide fibers having enhanced flow and high mechanical properties.\"--P. 1." . . . . . . . . . . . . . . . "Composite materials." . . "Polyimides." . . "Fabrication." . . "Powder (Particles)" . . . . "Monomers." . . "Textiles." . .