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:
Jun. 23, 2020
Filed:
Sep. 27, 2016
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Shuji Furuno, Shiga, JP;
Hiroho Hirozawa, Shiga, JP;
Takao Sasaki, Shiga, JP;
Yoshiki Okamoto, Shiga, JP;
Hiroyuki Yamada, Shiga, JP;
Assignee:
TORAY INDUSTRIES, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 69/12 (2006.01); B01D 69/10 (2006.01); B01D 71/56 (2006.01); C02F 1/44 (2006.01); C02F 103/08 (2006.01);
U.S. Cl.
CPC ...
B01D 69/12 (2013.01); B01D 69/10 (2013.01); B01D 71/56 (2013.01); C02F 1/44 (2013.01); C02F 2103/08 (2013.01); Y02A 20/131 (2018.01);
Abstract
The purpose of the present invention is to provide a composite semipermeable membrane having achieved both strength and water-permeable properties. This composite semipermeable membrane is provided with a substrate, a porous support body disposed on the substrate, and a separation function layer provided on the porous support body. The substrate has a structure provided with a crimped portion and a non-crimped portion. The porous support body is impregnated inside a crimped portion and inside a non-crimped portion of the substrate.