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:
Apr. 30, 2024
Filed:
Feb. 18, 2020
Applicant:
Zeon Corporation, Tokyo, JP;
Inventors:
Takahiro Suzuki, Tokyo, JP;
Shiori Omori, Tokyo, JP;
Assignee:
ZEON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 29/06 (2006.01); B01D 67/00 (2006.01); B01D 69/10 (2006.01); B01D 71/02 (2006.01); B01J 29/035 (2006.01); B01J 29/40 (2006.01); B01J 35/00 (2006.01); B01J 35/30 (2024.01); C01B 37/02 (2006.01); C01B 39/48 (2006.01); B01J 29/60 (2006.01); B01J 29/66 (2006.01);
U.S. Cl.
CPC ...
B01D 67/0051 (2013.01); B01D 69/108 (2022.08); B01D 71/0281 (2022.08); B01J 29/035 (2013.01); B01J 29/06 (2013.01); B01J 29/40 (2013.01); B01J 35/00 (2013.01); B01J 35/30 (2024.01); C01B 37/02 (2013.01); C01B 39/48 (2013.01); B01J 29/60 (2013.01); B01J 29/66 (2013.01); B01J 2229/60 (2013.01); B01J 2229/66 (2013.01);
Abstract
A method of producing a separation membrane includes a seed crystal adhesion step of adhering zeolite seed crystals to a porous support formed of stainless steel to obtain a seed crystal-bearing support and a separation layer formation step of forming a porous separation layer formed of a zeolite on the seed crystal-bearing support. The stainless steel has a contact angle with water of 90° or more. The seed crystal adhesion step includes bringing the zeolite seed crystals and a solvent having a contact angle with the stainless steel of 30° or less into contact with the porous support.