NOVELTY - A heat resistant film is manufactured by casting process which casts dope with which linear polymeric compound is melted or dispersed to organic solvent at a film form on casting support which works, drying process which dries the cast film on the casting support, peeling process which peels dry cast film from the casting support, and forms a film, and gelatinization drying process which dries the solvent in the cast film at wind speed of less than or equal to 1 m/sec of drying wind until dry stress works to the cast film and gelatinizes for the first time.    USE - Manufacture of heat resistant film for transparent conductive film, display apparatus substrate, substrate for flexible displays, substrate for flat panel displays, substrate for solar cells, touch panel substrate, substrate for flexible circuits, and optical disk protective film.    ADVANTAGE - The resin film is excellent in heat resistance and has low linear thermal expansion coefficient.    DETAILED DESCRIPTION - A heat resistant film is manufactured by casting process which casts dope with which linear polymeric compound is melted or dispersed to organic solvent at a film form on casting support which works, drying process which dries the cast film on the casting support, peeling process which peels dry cast film from the casting support, and forms a film, gelatinization drying process which dries the solvent in the cast film at wind speed of less than or equal to 1 m/sec of drying wind until dry stress works to the cast film and gelatinizes for the first time, and low-temperature rapid drying process which carries out low-temperature drying of the gelatinized cast film at - 40-10 degrees C film surface temperature, and carries out the rapid drying at wind speed of drying wind at greater than or equal to 5 m/sec. The film surface temperature of the cast film is set to 30-1- degrees C boiling point of organic solvent. An INDEPENDENT CLAIM is included for a manufacturing apparatus of the heat resistant film (10).    DESCRIPTION OF DRAWING(S) - The drawing shows a conceptual diagram of the manufacturing apparatus of heat resistant film.    Manufacturing apparatus of the heat resistant film (10)    Stock tank (12)    Stirrer (14)    Liquid feeding pump (16)    Liquid feeding piping (18)