METHOD FOR WASHING TWIN-SCREW EXTRUDER AND METHOD FOR MANUFACTURING AROMATIC POLYCARBONATE

PROBLEM TO BE SOLVED: To provide a technique capable of easily washing a twin-screw extruder used in the treatment of an aromatic polycarbonate in a short time without disassembling the same and capable of stably producing the aromatic polycarbonate with a high molecular weight excellent in hue and...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SHIMONARI MASASHI, SAWAKI TORU, SASAKI KATSUJI, ITO EIJI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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