Invention Grant
- Patent Title: Method for producing polymer for electronic material and polymer for electronic material obtained by the production method
-
Application No.: US15735748Application Date: 2016-04-15
-
Publication No.: US10766973B2Publication Date: 2020-09-08
- Inventor: Tomohiro Masukawa , Ryo Fujisawa , Kazuhiko Haba , Satoshi Kakuta
- Applicant: MARUZEN PETROCHEMICAL CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: Maruzen Petrochemical Co., Ltd.
- Current Assignee: Maruzen Petrochemical Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Burr & Brown, PLLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@1b8fb41d
- International Application: PCT/JP2016/062058 WO 20160415
- International Announcement: WO2016/208257 WO 20161229
- Main IPC: C08F6/06
- IPC: C08F6/06 ; C08G8/04 ; C08G12/26 ; C08F212/14 ; C08F12/24 ; C08F6/02
Abstract:
Provided is a method for producing a polymer for an electronic material having a low content of metal ion impurities and a polymer for an electronic material obtained by such method.The method for producing a polymer for an electronic material according to the present invention comprises a polymerization step of obtaining a polymer by polymerizing a monomer(s) and a purification step of adding a strong acid having 0 or less pKa to the polymer solution and subsequently performing an ion exchange treatment to reduce the concentration of the metal ion impurities.
Public/Granted literature
Information query
