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. 05, 2018
Filed:
Oct. 01, 2013
Jnc Corporation, Tokyo, JP;
Jnc Petrochemical Corporation, Tokyo, JP;
JNC CORPORATION, Tokyo, JP;
JNC PETROCHEMICAL CORPORATION, Tokyo, JP;
Abstract
Provided is a microporous membrane which has an asymmetric structure and which exhibits higher permeability while keeping a high particle rejection. This microporous membrane is an asymmetric microporous membrane that is provided with: a skin layer in which micropores have been formed; and a support layer which supports the skin layer and in which pores larger than the micropores have been formed. The material of the microporous membrane is a polyvinylidene fluoride-based resin. In the skin layer, multiple spherical bodies () are present, and multiple linear joining parts () extend three-dimensionally from each of the spherical bodies (), each pair of adjacent spherical bodies () being linked to each other by one or more of the linear joining parts (). Thus, the skin layer has a three-dimensional network structure wherein the spherical bodies () act as nodes.