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. 06, 2013
Filed:
Sep. 25, 2009
Jing-pin Pan, Hsinchu Hsien, TW;
Yueh-wei Lin, Hsinchi, TW;
Chung-liang Chang, Hsinchu, TW;
Li-duan Tsai, Hsinchu, TW;
Ya-tin Hsu, Taipei, TW;
Jing-Pin Pan, Hsinchu Hsien, TW;
Yueh-Wei Lin, Hsinchi, TW;
Chung-Liang Chang, Hsinchu, TW;
Li-Duan Tsai, Hsinchu, TW;
Ya-Tin Hsu, Taipei, TW;
Abstract
The disclosed forms a proton exchange membrane. First, multi-maleimide and barbituric acid are copolymerized to form a hyper-branched polymer. Next, the solvent of the sulfonated tetrafluoroethylene copolymer (Nafion) aqueous solution is replaced from water with dimethyl acetamide (DMAc). 10 to 20 parts by weight of the hyper-branched polymer is added to the 90 to 80 parts by weight of the Nafion in a DMAc solution, stood and heated to 50° C. to inter-penetrate the hyper-branched polymer and the Nafion. The heated solution is coated on a substrate, baked, and pre-treated to remove residue solvent for completing an inter-penetrated proton exchange membrane.