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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.:

US 6379796 B1

PDFFull Text
Date of Patent:
Apr. 30, 2002

Filed:

May. 31, 2000

Composite hollow fiber membrane

Applicant:
Inventors:

Masamoto Uenishi, Otake, JP;

Noriaki Fukushima, Otake, JP;

Assignee:

Mitsubishi Rayon Co., Ltd., Tokyo, JP;

Attorney:

Fitch, Even, Tabin & Flannery

Primary Examiner:

Cynthia H Kelly

Assistant Examiner:

J M Gray

Int. Cl.
CPC ...
D02G 3/00 ;
U.S. Cl.
CPC ...
D02G 3/00 ;
Abstract

Disclosed is a composite hollow fiber membrane having a composite structure consisting of a homogeneous thin film interposed between porous substrate layers wherein the ratio of the oxygen permeation flux to the nitrogen permeation flux of the membrane is not less than 1.1 and wherein, after the membrane has been immersed in chemical liquids according to JIS K 7114, the percentage change of the ratio is within ñ10%. This composite hollow fiber membrane can be used to degas chemical liquids without any liquid leakage.

Find Patent Forward Citations

Uenishi, Masamoto. (2002). Composite hollow fiber membrane (U.S. Patent No. 6379796). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6379796

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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