(JP8507935-X)      An aromatic polyamide film contg. 0.001-10 wt.% of fine inorganic or organic particles and having, on at least one surface, 102-107 (mm-2) projections with a height of 0.01-0.05 m, 0-5 (cm-2) projections with a height of 0.27 to less than 0.54 m, 0-2 (10 cm-2) projections with a height of 0.54 to less than 0.81 m, and 0-0.5 (100 cm-2) projections with a height of 0.81 m or above. The film has both slipperiness and surface smoothness. The film is produced by sufficiently dispersing fine inorganic or organic particles in a solvent for aromatic polyamides, filtering the obtd. dispersion, preparing an aromatic polyamide soln. by using the dispersion as the solvent, filtering the obtd. soln., and forming a film.    USE -   Useful as an insulation film for rapidly rotating electrical appliances, a base film for magnetic recording media, a base film for solar cells, and a flexible printed wiring board.    (US5853907-A)      An aromatic polyamide film contg. 0.001-10 wt.% of fine inorganic or organic particles and having, on at least one surface, 102-107 (mm-2) projections with a height of 0.01-0.05 m, 0-5 (cm-2) projections with a height of 0.27 to less than 0.54 m, 0-2 (10 cm-2) projections with a height of 0.54 to less than 0.81 m, and 0-0.5 (100 cm-2) projections with a height of 0.81 m or above. The film has both slipperiness and surface smoothness. The film is produced by sufficiently dispersing fine inorganic or organic particles in a solvent for aromatic polyamides, filtering the obtd. dispersion, preparing an aromatic polyamide soln. by using the dispersion as the solvent, filtering the obtd. soln., and forming a film.    USE -   Useful as an insulation film for rapidly rotating electrical appliances, a base film for magnetic recording media, a base film for solar cells, and a flexible printed wiring board.    (JP2001114913-A)      An aromatic polyamide film contg. 0.001-10 wt.% of fine inorganic or organic particles and having, on at least one surface, 102-107 (mm-2) projections with a height of 0.01-0.05 m, 0-5 (cm-2) projections with a height of 0.27 to less than 0.54 m, 0-2 (10 cm-2) projections with a height of 0.54 to less than 0.81 m, and 0-0.5 (100 cm-2) projections with a height of 0.81 m or above. The film has both slipperiness and surface smoothness. The film is produced by sufficiently dispersing fine inorganic or organic particles in a solvent for aromatic polyamides, filtering the obtd. dispersion, preparing an aromatic polyamide soln. by using the dispersion as the solvent, filtering the obtd. soln., and forming a film.    USE -   Useful as an insulation film for rapidly rotating electrical appliances, a base film for magnetic recording media, a base film for solar cells, and a flexible printed wiring board.    (JP3183297-B2)      An aromatic polyamide film contg. 0.001-10 wt.% of fine inorganic or organic particles and having, on at least one surface, 102-107 (mm-2) projections with a height of 0.01-0.05 m, 0-5 (cm-2) projections with a height of 0.27 to less than 0.54 m, 0-2 (10 cm-2) projections with a height of 0.54 to less than 0.81 m, and 0-0.5 (100 cm-2) projections with a height of 0.81 m or above. The film has both slipperiness and surface smoothness. The film is produced by sufficiently dispersing fine inorganic or organic particles in a solvent for aromatic polyamides, filtering the obtd. dispersion, preparing an aromatic polyamide soln. by using the dispersion as the solvent, filtering the obtd. soln., and forming a film.    USE -   Useful as an insulation film for rapidly rotating electrical appliances, a base film for magnetic recording media, a base film for solar cells, and a flexible printed wiring board.