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. 01, 2021
Filed:
Jul. 22, 2015
Applicant:
Daicel Corporation, Osaka, JP;
Inventors:
Assignee:
DAICEL CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/26 (2006.01); C08J 3/16 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); B01J 20/285 (2006.01); B01J 20/24 (2006.01); C08J 3/075 (2006.01); B01J 20/32 (2006.01); B01J 20/286 (2006.01); B01D 15/38 (2006.01); C07K 1/22 (2006.01); C07K 16/00 (2006.01);
U.S. Cl.
CPC ...
C08J 9/26 (2013.01); B01D 15/3809 (2013.01); B01J 20/24 (2013.01); B01J 20/285 (2013.01); B01J 20/286 (2013.01); B01J 20/28019 (2013.01); B01J 20/28042 (2013.01); B01J 20/3007 (2013.01); B01J 20/3078 (2013.01); B01J 20/3212 (2013.01); B01J 20/3274 (2013.01); C07K 1/22 (2013.01); C07K 16/00 (2013.01); C08J 3/075 (2013.01); C08J 3/16 (2013.01); C08J 2301/12 (2013.01);
Abstract
The present invention provides a technique for preparing a porous cellulose medium, through the gelation of a solution in which cellulose acetate as a raw material is dissolved, which does not cause a reaction involving the migration of substances. Specifically, a method for producing a porous cellulose medium is provided which includes the steps of gelling a flowable homogeneous composition containing cellulose acetate, an organic solvent, and water through a decrease in temperature; and hydrolyzing the cellulose acetate contained in the resulting gel.