Invention Grant
- Patent Title: Extrusion pelletizer for polycarbonate resin and method for extrusion-pelletizing polycarbonate resin
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Application No.: US14765450Application Date: 2013-12-25
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Publication No.: US10464235B2Publication Date: 2019-11-05
- Inventor: Nobuhiro Watanabe , Takayoshi Tanaka
- Applicant: IDEMITSU KOSAN CO., LTD.
- Applicant Address: JP Chiyoda-ku
- Assignee: IDEMITSU KOSAN CO., LTD.
- Current Assignee: IDEMITSU KOSAN CO., LTD.
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2013-019945 20130204
- International Application: PCT/JP2013/084562 WO 20131225
- International Announcement: WO2014/119187 WO 20140807
- Main IPC: B29C48/04
- IPC: B29C48/04 ; B29B9/02 ; B01D35/18 ; B29C48/69 ; B29C48/694 ; B29B9/06 ; B29K69/00 ; B29C48/30 ; B29C48/00 ; B29C48/345 ; B29C48/87

Abstract:
An extrusion pelletizer for a polycarbonate resin includes: an extruder; a cooling unit; and a cutter. The extruder includes a cylinder top, a first adapter, a polymer filter unit, a second adapter, and a die head. The polymer filter unit includes a plurality of stick-shaped filter elements therein. A temperature of the second adapter is set to be lower than a temperature of the polymer filter unit. The cooling unit and the cutter are disposed under an atmosphere in which air cleanliness defined in accordance with JIS B 9920 is any one of class 1 to class 7.
Public/Granted literature
- US20150360393A1 EXTRUSION PELLETIZER FOR POLYCARBONATE RESIN AND METHOD FOR EXTRUSION-PELLETIZING POLYCARBONATE RESIN Public/Granted day:2015-12-17
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