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. 16, 2024
Filed:
Oct. 20, 2020
Applicants:
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Kyoeisha Chemical Co., Ltd., Osaka, JP;
Inventors:
Takayoshi Hori, Kanagawa, JP;
Katsunori Matsui, Kanagawa, JP;
Sho Yokogawa, Kanagawa, JP;
Yoshiaki Ito, Tokyo, JP;
Ryo Kamito, Tokyo, JP;
Yoshihisa Katsunishi, Nara, JP;
Atsuyoshi Ueda, Nara, JP;
Takahiro Masui, Nara, JP;
Assignees:
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
KYOEISHA CHEMICAL CO., LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 65/06 (2006.01); B01D 67/00 (2006.01); B01D 69/12 (2006.01); B01D 71/16 (2006.01);
U.S. Cl.
CPC ...
B01D 65/06 (2013.01); B01D 67/00 (2013.01); B01D 69/12 (2013.01); B01D 71/16 (2013.01); B01D 2321/162 (2013.01);
Abstract
A desalination performance restoration agent for a cellulose acetate membrane contains: a solvent; and a modified polyvinyl alcohol mixed in the solvent. The modified polyvinyl alcohol has an acetyl group structure in at least part of polyvinyl alcohol.