ultrahigh-performance PPTA, poly (p-phenylene terephthalamide) aramid film for use in aerospace, automation, automotive and sports and leisure and for use in film-reinforced composite plastics, reinforcing fiber/film hybrids, thin endless belts, tension members, acoustic diaphragms, magnetic recording tapes, floppy disks, substrates for flexible printed circuits, film carrier for TAB, cover films, masking tapes, electrical insulation films