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:
Jan. 06, 2009
Filed:
Jan. 21, 2005
Nobuto Hoshi, Fuji, JP;
Nobuyuki Uematsu, Fuji, JP;
Oliver Gronwald, Goettingen, DE;
Takehiro Koga, Fuji, JP;
Masanori Ikeda, Fuji, JP;
Nobuto Hoshi, Fuji, JP;
Nobuyuki Uematsu, Fuji, JP;
Oliver Gronwald, Goettingen, DE;
Takehiro Koga, Fuji, JP;
Masanori Ikeda, Fuji, JP;
Asahi Kasei Kabushiki Kaisha, Osaka, JP;
Abstract
A superacidic ester group is useful in the production of ionomers for polymer electrolyte fuel cells. A polymer is produced from said vinyl monomer. A process produces a polymer containing a superacidic group. The vinyl monomer contains a haloalkyl ester group of a superacid, wherein the number of carbon atoms of the haloalkyl ester group is no more than 10, and the halogen in the haloalkyl group is chlorine and/or fluorine. A polymer containing said vinyl monomer as a repeating unit can be converted to a polymer containing a superacid group using at least one procedure of 1) heat treating at 50°C. to 350°C., and 2) contacting with a protic compound.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile