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. 23, 2024
Filed:
Jun. 17, 2019
Applicants:
Tohoku University, Sendai, JP;
Daicel Corporation, Osaka, JP;
Inventors:
Assignees:
TOHOKU UNIVERSITY, Sendai, JP;
DAICEL CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/10 (2006.01); B01J 20/28 (2006.01); B01J 20/283 (2006.01); B01J 20/32 (2006.01);
U.S. Cl.
CPC ...
B01J 20/103 (2013.01); B01J 20/28021 (2013.01); B01J 20/283 (2013.01); B01J 20/3204 (2013.01); B01J 20/3214 (2013.01); B01J 20/3234 (2013.01); B01J 20/3293 (2013.01);
Abstract
Provided is a production method for core-shell porous silica particles, the production method including: a preparation step of preparing an aqueous solution comprising non-porous silica particles, a cationic surfactant, a basic catalyst, an electrolyte, and an alcohol; a shell precursor formation step at adding a silica source to the aqueous solution to form a shell precursor on a surface of the non-porous silica particles; and a shell formation step of removing the cationic surfactant from the shell precursor to form a porous shell.