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:
Dec. 23, 2014
Filed:
Jun. 16, 2010
Applicants:
Naotake Sato, Sagamihara, JP;
Toshihiro Kikuchi, Yokohama, JP;
Yuichi Hashimoto, Tokyo, JP;
Yohei Miyauchi, Tokyo, JP;
Inventors:
Naotake Sato, Sagamihara, JP;
Toshihiro Kikuchi, Yokohama, JP;
Yuichi Hashimoto, Tokyo, JP;
Yohei Miyauchi, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/28 (2006.01); H01M 8/10 (2006.01); C08J 5/18 (2006.01); B01D 67/00 (2006.01);
U.S. Cl.
CPC ...
B01D 67/0016 (2013.01); H01M 8/1053 (2013.01); H01M 2300/0082 (2013.01); B01D 2325/30 (2013.01); C08J 5/18 (2013.01); H01M 8/1081 (2013.01); B01D 2325/24 (2013.01); B01D 2325/02 (2013.01); Y02E 60/521 (2013.01);
Abstract
A porosity is freely controlled in preparation of a porous polymer film by a phase separation method. A solvent absorption sheet is used for a solvent in a polymer solution so that the coating film of the polymer solution may be covered with the sheet. After that, the solvent in the film is selectively removed. Then, the resultant is immersed in a poor solvent. Thus, a porous polymer film can be produced.