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:
Jul. 25, 2023
Filed:
May. 22, 2019
Applicant:
Kao Corporation, Tokyo, JP;
Inventor:
Atsushi Hiraishi, Takaishi, JP;
Assignee:
KAO CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 32/159 (2017.01); C01B 32/172 (2017.01); C01B 32/174 (2017.01); B01D 21/01 (2006.01); B01D 21/26 (2006.01); C09D 11/52 (2014.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01); C08F 20/06 (2006.01);
U.S. Cl.
CPC ...
C01B 32/159 (2017.08); B01D 21/01 (2013.01); B01D 21/262 (2013.01); C01B 32/172 (2017.08); C01B 32/174 (2017.08); C09D 11/52 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C01B 2202/02 (2013.01); C01B 2202/22 (2013.01); C01P 2004/13 (2013.01); C01P 2004/64 (2013.01); C01P 2006/40 (2013.01); C08F 20/06 (2013.01);
Abstract
A method for producing a semiconducting SWCNT dispersion of the present invention comprises: a step A of preparing a to-be-separated SWCNT dispersion that includes a SWCNT mixture, an aqueous medium, and a polymer including a structural unit A derived from a monomer represented by Formula (1), and a step B of centrifuging the to-be-separated SWCNT dispersion and subsequently collecting a supernatant including the semiconducting SWCNT from the centrifuged to-be-separated SWCNT dispersion. The weight-average molecular weight of the polymer is 1,000 or more and 100,000 or less.