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:
Jun. 23, 2015
Filed:
May. 30, 2012
Kazuhiro Yamanaka, Tachikawa, JP;
Tsuyoshi Ogawa, Iruma-gun, JP;
Takeshi Suda, Fujimino, JP;
Hiroki Uoyama, Iruma-gun, JP;
Kazuhiro Yamanaka, Tachikawa, JP;
Tsuyoshi Ogawa, Iruma-gun, JP;
Takeshi Suda, Fujimino, JP;
Hiroki Uoyama, Iruma-gun, JP;
Central Glass Company, Limited, Ube-shi, JP;
Abstract
[Problem] Diamine and carboxylic dianhydride for polymerizing a hexafluoroisopropylidene group-containing polyimide are limited in chemical structure when developed into a polyimide membrane, so that it is difficult to design a chemical structure with consideration paid to the strength and separation performance of a gas separation membrane. A gas separation membrane easily soluble in an organic solvent, excellent in formability so as to be readily usable for a gas separation membrane, and excellent in gas separation performance is obtained. [Solution] A gas separation membrane, including:
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile