METHOD FOR PRODUCING THERMOPLASTIC RESIN FILM

The present invention relates to a method for producing a film containing a thermoplastic resin, the method comprising: a step of feeding a material containing a thermoplastic resin and having a pair of opposed flat portions to between a pair of rollers with the thermoplastic resin in a molten state...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TAKATA, ATSUHIRO, YAMAGUCHI, TAKANARI, SUZUKI, TOSHIHIKO
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:The present invention relates to a method for producing a film containing a thermoplastic resin, the method comprising: a step of feeding a material containing a thermoplastic resin and having a pair of opposed flat portions to between a pair of rollers with the thermoplastic resin in a molten state, and a step of rolling, with the pair of rollers, the pair of flat portions being stacked, thereby welding the flat portions to each other to form a united film, wherein the material to be fed to between the rollers is two separate films each having a flat portion or one flat cylindrical film having a pair of opposed flat portions linked together by connecting portions at their end portions.