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:
Aug. 07, 2018
Filed:
Nov. 27, 2014
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Masayuki Hanakawa, Shiga, JP;
Koichi Takada, Shiga, JP;
Takahiro Tokuyama, Shiga, JP;
Kenta Iwai, Shiga, JP;
Assignee:
TORAY INDUSTRIES, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 39/00 (2006.01); B01D 29/00 (2006.01); B01D 29/46 (2006.01); B01D 69/12 (2006.01); B01D 69/02 (2006.01); C02F 1/28 (2006.01); C02F 1/44 (2006.01); B32B 27/06 (2006.01); B01J 20/26 (2006.01); B01J 20/28 (2006.01); B01J 20/32 (2006.01); B01D 67/00 (2006.01); B01D 69/08 (2006.01); C02F 101/10 (2006.01); C02F 101/20 (2006.01);
U.S. Cl.
CPC ...
B01D 69/12 (2013.01); B01D 67/0009 (2013.01); B01D 67/0018 (2013.01); B01D 69/02 (2013.01); B01D 69/08 (2013.01); B01J 20/261 (2013.01); B01J 20/28038 (2013.01); B01J 20/327 (2013.01); B01J 20/3293 (2013.01); B32B 27/06 (2013.01); C02F 1/285 (2013.01); C02F 1/44 (2013.01); B01D 2325/02 (2013.01); B01D 2325/04 (2013.01); B01D 2325/12 (2013.01); B32B 2307/724 (2013.01); C02F 2101/108 (2013.01); C02F 2101/20 (2013.01);
Abstract
An object of the present invention is to provide a multilayer separation membrane having excellent performance on both removal of suspended solids in water and adsorptive removal of metal ions in water. A multilayer separation membrane of the present invention includes: a porous adsorption layer including substantially a polymer having chelating functional groups; and a porous clarification layer, and the porous clarification layer is disposed neater to a raw water-side than the porous adsorption layer.