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:
Aug. 07, 2012
Filed:
Oct. 30, 2006
Satoshi Komatsu, Chuo-ku, JP;
Junji Kawai, Chuo-ku, JP;
Toshihiro Ohtsuki, Chuo-ku, JP;
Takanobu Yamamoto, Chuo-ku, JP;
Ryoichiro Takahashi, Wako, JP;
Kaoru Fukuda, Wako, JP;
Hiroshi Shinkai, Wako, JP;
Satoshi Komatsu, Chuo-ku, JP;
Junji Kawai, Chuo-ku, JP;
Toshihiro Ohtsuki, Chuo-ku, JP;
Takanobu Yamamoto, Chuo-ku, JP;
Ryoichiro Takahashi, Wako, JP;
Kaoru Fukuda, Wako, JP;
Hiroshi Shinkai, Wako, JP;
JSR Corporation, Tokyo, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
The present invention provides an electrode catalyst layer comprising catalyst particles, an ion exchange resin and a water repellent agent. The water repellent agent contains (A) a fluorine-containing copolymer having a structure unit derived from a polyfluoroalkyl-containing (meth)acrylate and/or (B) a fluorine-containing copolymer having a structural unit represented by derived from a fluorine-containing olefin monomer and a structure unit represented derived from a vinyl ether monomer. The electrode catalyst layer contains 0.1 to 20% by weight of the water repellant agent. The electrode catalyst layer exhibits excellent balance between water retention and drainage in an electrode, good power generation performance under any of low humidity and high humidity conditions, and also excellent durability in power generation.