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:
May. 13, 2014
Filed:
Feb. 15, 2011
Shushi Asano, Kurashiki, JP;
Yoshiki Nobuto, Kurashiki, JP;
Naoki Fujiwara, Kurashiki, JP;
Shuhong Duan, Kizugawa, JP;
Shingo Kazama, Kizugawa, JP;
Shushi Asano, Kurashiki, JP;
Yoshiki Nobuto, Kurashiki, JP;
Naoki Fujiwara, Kurashiki, JP;
Shuhong Duan, Kizugawa, JP;
Shingo Kazama, Kizugawa, JP;
Research Institute of Innovative Technology for the Earth, Kizugawa-shi, JP;
Abstract
Disclosed is a gas separation composite membrane comprising a polyamidoamine dendrimer (A) having a specific group, a vinyl alcohol-based polymer (B) containing 0.5 to 5 mol % of carboxyl groups, and a crosslinking agent (C) having an azetidinium group, wherein the mass ratio (A)/(C) of the polyamidoamine dendrimer (A) to the crosslinking agent (C) having an azetidinium group is 20/80 to 65/35, and the mass ratio (B)/(C) of the vinyl alcohol-based polymer (B) to the crosslinking agent (C) having an azetidinium group is 20/80 to 80/20. Thus, a gas separation composite membrane capable of separating a specific type of gas from a mixed gas containing water vapor is provided.