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:
Jul. 21, 2009
Filed:
Jul. 11, 2007
Katsuhiko Shinada, Toyohasi, JP;
Kei Murase, Toyohashi, JP;
Teruyuki Yamada, Saeki-gun, JP;
Yuuichi Shirasu, Kyoto, JP;
Masahiko Mizuta, Otake, JP;
Hiroyuki Fujiki, Saeki-gun, JP;
Katsuhiko Shinada, Toyohasi, JP;
Kei Murase, Toyohashi, JP;
Teruyuki Yamada, Saeki-gun, JP;
Yuuichi Shirasu, Kyoto, JP;
Masahiko Mizuta, Otake, JP;
Hiroyuki Fujiki, Saeki-gun, JP;
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Abstract
An object of the present invention is to provide a composite porous membrane, which has not only excellent filtration capacity, but also excellent adhesion between a porous membrane and a braid and mechanical properties, and a method for producing the composite porous membrane. The present invention relates to a composite porous membrane comprising a braid, and a membrane material; wherein the membrane material comprises a first porous layer comprising a dense layer which is arranged on the outer surface of the braid, and a second porous layer comprising a dense layer which is arranged on the first porous layer, and a method for producing the composite porous membrane.