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. 29, 2016
Filed:
Sep. 25, 2009
Yoshihide Kawaguchi, Ibaraki, JP;
Atsushi Hiro, Ibaraki, JP;
Noriaki Harada, Ibaraki, JP;
Osamu Hayashi, Ibaraki, JP;
Atsuko Mizuike, Ibaraki, JP;
Katsumi Ishii, Ibaraki, JP;
Yoshihide Kawaguchi, Ibaraki, JP;
Atsushi Hiro, Ibaraki, JP;
Noriaki Harada, Ibaraki, JP;
Osamu Hayashi, Ibaraki, JP;
Atsuko Mizuike, Ibaraki, JP;
Katsumi Ishii, Ibaraki, JP;
NITTO DENKO CORPORATION, Osaka, JP;
Abstract
It is an object of the present invention to provide a composite semi-permeable membrane exhibiting excellent chemical resistance and having practical water permeability and salt-blocking property, and a method for producing the same. The present invention relates to a composite semi-permeable membrane, including a porous support and a skin layer formed on a surface of the porous support, wherein the porous support contains a thermosetting resin porous sheet having a three-dimensional network structure and pores communicating with each other and wherein the thermosetting resin porous sheet has an average pore diameter of 0.01 to 0.4 μm.