Invention Grant
- Patent Title: Process for producing conjugated diene polymer
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Application No.: US15506495Application Date: 2015-09-07
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Publication No.: US10246525B2Publication Date: 2019-04-02
- Inventor: Tetsuji Tokiwa
- Applicant: Asahi Kasei Kabushiki Kaisha
- Applicant Address: JP Tokyo
- Assignee: Asahi Kasei Kabushiki Kaisha
- Current Assignee: Asahi Kasei Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Morgan, Lewis & Bockius LLP
- Priority: JP2014-183614 20140909; JP2014-254933 20141217
- International Application: PCT/JP2015/075307 WO 20150907
- International Announcement: WO2016/039284 WO 20160317
- Main IPC: C08C2/02
- IPC: C08C2/02 ; B29B13/06 ; C08F36/00 ; C08F6/10 ; C08F8/00 ; B29B7/48 ; C08C19/22 ; C08C19/25 ; C08J3/00 ; B29K9/00
Abstract:
The present invention provides a process for producing a conjugated diene polymer, the process including a production step of producing a conjugated diene polymer solution containing a conjugated diene polymer and a solvent, and a devolatilization step of heating the conjugated diene polymer solution while conveying the conjugated diene polymer solution with an apparatus having rotary twin screws, thereby devolatilizing the solvent, in which a motor current value of the screw in the devolatilization step and a motor current value of the screw under no load satisfy a predetermined relational expression.
Public/Granted literature
- US20170260301A1 Process for Producing Conjugated Diene Polymer Public/Granted day:2017-09-14
Information query
