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:
Nov. 03, 2015
Filed:
Sep. 18, 2009
Kenji Komori, Otsu, JP;
Toshiyuki Ishizaki, Otsu, JP;
Kenta Iwai, Otsu, JP;
Xunyao Fu, Otsu, JP;
Shinichi Minegishi, Otsu, JP;
Nao Minaki, Iyo-gun, JP;
Kenji Komori, Otsu, JP;
Toshiyuki Ishizaki, Otsu, JP;
Kenta Iwai, Otsu, JP;
Xunyao Fu, Otsu, JP;
Shinichi Minegishi, Otsu, JP;
Nao Minaki, Iyo-gun, JP;
Toray Industries, Inc., Tokyo, JP;
Abstract
A separation membrane including a separation-functional layer is provided, wherein the separation-functional layer contains a polyvinylidene fluoride-type resin having a melt viscosity of 3,300 Pa·s or more, and also the separation-functional layer has a three-dimensional network structure. A separation membrane is provided having high virus removal performance, high pure water permeability, and high physical durability and high chemical strength, which can also be used in the field of water treatment.