Title:
ポリベンゾイミダゾール、その前駆体ポリアミド及びそれらの製造方法
Document Type and Number:
Japanese Patent JP7085737
Kind Code:
B2
Abstract:
The invention provides a novel fluorine-containing polybenzimidazole having excellent heat resistance as well as excellent solubility in solvents, electric insulation, and colorless transparency. The polybenzimidazole contains a repeating unit represented by the following formula (1):wherein Rfis -SO2-,-O-,-CO-, an alkylene group optionally containing a substituent, or a group represented by the following formula (a):(a); two Xs are each individually a hydrogen atom or a monovalent organic group; and R1is a divalent organic group.
Inventors:
Yoshiyuki Oishi
Tsuyoshi Noguchi
Sho Kamihara
Tsuyoshi Noguchi
Sho Kamihara
Application Number:
JP2019542300A
Publication Date:
June 17, 2022
Filing Date:
September 14, 2018
Export Citation:
Assignee:
Daikin Industries, Ltd.
Iwate University
Iwate University
International Classes:
C08G73/18; H01M8/10; H01M8/1027; H01M8/103; H01M8/1032; H01M8/1039; H05K1/03
Domestic Patent References:
| JP2013051145A | ||||
| JP2006339064A | ||||
| JP2015101710A |
Foreign References:
| CN106928481A | ||||
| US4537974 | ||||
| US5262056 |
Other References:
James J. Kane and Weimin Qian,Synthesis of n-substituted polybenzimidazoles by cyclodehydrogenation of precursor poly(schief bases),Polymer preprints,1991年,Vol32, No.3,232-233
Attorney, Agent or Firm:
Patent Business Corporation Yasutomi International Patent Office