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. 24, 2018
Filed:
Aug. 08, 2013
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Jumpei Kishimoto, Kanagawa, JP;
Hiroyuki Kurihara, Kanagawa, JP;
Atsushi Minamino, Kanagawa, JP;
Katsushige Yamada, Kanagawa, JP;
Assignee:
Toray Industries, Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C13B 20/16 (2011.01); B01D 65/06 (2006.01); B01D 61/58 (2006.01); C13K 1/02 (2006.01); B01D 65/02 (2006.01); B01D 61/02 (2006.01); B01D 61/14 (2006.01);
U.S. Cl.
CPC ...
C13B 20/165 (2013.01); B01D 61/58 (2013.01); B01D 65/02 (2013.01); B01D 65/06 (2013.01); C13K 1/02 (2013.01); B01D 61/025 (2013.01); B01D 61/027 (2013.01); B01D 61/145 (2013.01); B01D 2311/26 (2013.01); B01D 2311/263 (2013.01); B01D 2321/02 (2013.01); B01D 2321/08 (2013.01); B01D 2321/16 (2013.01); B01D 2321/162 (2013.01); B01D 2321/164 (2013.01); B01D 2321/20 (2013.01);
Abstract
A method of producing a sugar liquid includes filtering a cellulose-derived sugar liquid through one or more separation membranes selected from the group consisting of an ultrafiltration membrane, a nanofiltration membrane and a reverse osmosis membrane and washing the separation membrane(s) after filtration with washing water containing an alkaline substance and an aromatic compound at 10° C. or more and less than 50° C.