The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2008
Filed:
Aug. 29, 2005
Takashi Okada, Chuo-ku, JP;
Mayumi Shinoda, Suzuka, JP;
Kimihiko Yoshii, Chuo-ku, JP;
Yousuke Konno, Chuo-ku, JP;
Toshihiro Otsuki, Chuo-ku, JP;
Kohei Goto, Chuo-ku, JP;
Takashi Okada, Chuo-ku, JP;
Mayumi Shinoda, Suzuka, JP;
Kimihiko Yoshii, Chuo-ku, JP;
Yousuke Konno, Chuo-ku, JP;
Toshihiro Otsuki, Chuo-ku, JP;
Kohei Goto, Chuo-ku, JP;
JSR Corporation, Tokyo, JP;
Abstract
The present invention provides a sulfonic group-containing polyarylene block copolymer superior to the perfluoroalkylsulfonic acid polymers in cost, conductive properties and proccessability, a process for producing the copolymer, a solid polymer electrolyte and a proton conductive membrane. The sulfonic group-containing polyarylene block copolymer includes a polymer segment with an ion conductive component represented by the formula (A) and at least one polymer segment without an ion conductive component represented by the formulae (B-1), (B-3) and the like and containing an aromatic ring bonded at the meta-positions or ortho-positions: wherein X is a single bond, —CO—, —SO— or the like; W is a single bond, —CO—, —SO— or the like; Q is a single bond, —O—, —S— or the like; J is a single bond, —CO—, —SO— or the like; and Rto Rare each a hydrogen atom, a fluorine atom, an alkyl group or the like.