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:
Mar. 26, 2019
Filed:
Mar. 22, 2017
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Iwao Ueno, Kyoto, JP;
Naoki Kosugi, Kyoto, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/30 (2006.01); C01B 39/02 (2006.01); C01B 39/14 (2006.01); B01J 20/18 (2006.01);
U.S. Cl.
CPC ...
C01B 39/14 (2013.01); B01J 20/18 (2013.01); B01J 20/30 (2013.01); B01J 20/3021 (2013.01); C01B 39/02 (2013.01); C01P 2006/90 (2013.01);
Abstract
There is provided a method for producing a zeolite more excellent in moisture absorption characteristics. The method includes physically pulverizing a zeolite that has a gradient of a Na/Si value from a surface of the zeolite in a depth direction, that has a proportion of the Na/Si value at a depth of 10 nm from the surface to the Na/Si value at the surface of 90% or more, and that has a proportion of the Na/Si value at a depth of 30 nm from the surface to the Na/Si value at the surface of 70% or more, the Na/Si value representing a composition ratio between Na and Si, and crystallizing the physically pulverized zeolite.