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:
Oct. 05, 2010
Filed:
Nov. 21, 2005
Chong-kyu Shin, Daejeon, KR;
Young-ji Tae, Seoul, KR;
Jae-hyuk Chang, Daejeon, KR;
Bong-keun Lee, Daejeon, KR;
Chang-ae Cho, Daejeon, KR;
Sang-hyun Lee, Seoul, KR;
Hwang-chan Yoo, Daejeon, KR;
Go-young Moon, Daejeon, KR;
Chong-kyu Shin, Daejeon, KR;
Young-ji Tae, Seoul, KR;
Jae-hyuk Chang, Daejeon, KR;
Bong-keun Lee, Daejeon, KR;
Chang-ae Cho, Daejeon, KR;
Sang-hyun Lee, Seoul, KR;
Hwang-chan Yoo, Daejeon, KR;
Go-young Moon, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
The present invention relates to a branched and sulphonated multi block copolymer and an electrolyte membrane using the same, more precisely, a branched and sulphonated multi block copolymer composed of the repeating unit represented by formula 1 and a preparation method thereof, a hydrogenated branched and sulphonated multi block copolymer, a branched and sulphonated multi block copolymer electrolyte membrane and a fuel cell to which the branched and sulphonated multi block copolymer electrolyte membrane is applied. The electrolyte membrane of the present invention has high proton conductivity and excellent mechanical properties as well as chemical stability, so it can be effectively used for the production of thin film without the decrease of membrane properties according to the increase of sulfonic acid group since it enables the regulation of the distribution, the location and the number of sulfonic acid group in polymer backbone.