Patent · US Expired

Polyarylene copolymers and proton-conductive membrane

US6555626B2 · kind B2 · utility

9Cited by

5References

10Claims

0Family size

Assignee

JSR CORPORATION · JP

Inventors

Kohei Goto · Daito, JP
Yoshitaka Yamakawa · Tsuchiura, JP
Mayumi Kakuta · Tsukuba, JP
Igor Rozhanskii · Chuo, JP

Key dates

Filing date	Mar 28, 2001
Grant date	Apr 29, 2003
Priority date	—
Expiry date	Mar 28, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C45/46
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A polyarylene copolymer which comprises (A) from 60 to 3 mol % aromatic compound units having a main chain containing one or more electron-withdrawing groups therein and (B) from 40 to 97 mol % aromatic compound units having a main chain containing no electron-withdrawing groups therein (provided that (A)+(B)=100 mol %), and a proton-conductive membrane comprising the polyarylene copolymer having sulfonic acid groups.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.