FILM OF AROMATIC POLYAMIDE AND/OR AROMATIC POLYIMIDE AND MAGNETIC RECORDING MEDIUM USING THE SAME

摘要

A film excellent in flatness, and not degraded in flatness by curling, etc. even at high temperature during processing and use as a product. The film of the present invention is made of an aromatic polyamide and/or aromatic polyimide, and satisfies the following: $where\; Pmax\; is\; the\; maximum\; value\; of\; the\; orientation\; degree\; obtained\; from\; the\; Raman\; spectrum\; in\; the\; section\; direction\; of\; the\; film;\; Pmin\; is\; the\; minimum\; value\; and\; Pavr\; is\; the\; average\; value.$