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:
Feb. 04, 2003
Filed:
Jan. 10, 2001
Tomoki Kakiuchi, Kurashiki, JP;
Koji Sekiguchi, Kurashiki, JP;
Takeshi Suehiro, Kurashiki, JP;
Shuhei Nakaji, Kurashiki, JP;
Yoichi Matsumoto, Kurashiki, JP;
Masato Takai, Kurashiki, JP;
Nozomu Sugo, Kurashiki, JP;
Hitoshi Tsuruta, Kurashiki, JP;
Kuraray Co., Ltd., Kurashiki, JP;
Abstract
A hollow fiber membrane made of an ethylene-vinyl alcohol polymer, comprises a dense layer existing in the inner surface and a porous layer existing in the layer other than the dense layer, wherein the hollow fiber membrane has a porosity of 60 to 90%, an overall mass transfer coefficient for myoglobin in a water-based system of not less than 0.003 cm/min., and a rejection rate for albumin in a bovine blood system of not less than 97%. The EVA hollow fiber membrane is useful for hemopurification membranes such as hemodialysis membranes, hemodiafiltration membranes, hemofiltration membranes and continuous hemofiltration membranes, and a process for producing the same.