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:
Apr. 24, 2012
Filed:
May. 19, 2009
Young Moo Lee, Seoul, KR;
Ho Bum Park, Seoul, KR;
Sang Hoon Han, Seoul, KR;
Chul Ho Jung, Gwangju, KR;
Young Moo Lee, Seoul, KR;
Ho Bum Park, Seoul, KR;
Sang Hoon Han, Seoul, KR;
Chul Ho Jung, Gwangju, KR;
IUCF-HYU (Industry-University Cooperation Foundation Hanyang University), Seongdong-Gu, Seoul, KR;
Abstract
Disclosed is a hollow fiber that includes a hollow positioned at the center of the hollow fiber, macropores positioned at adjacent to the hollow, and mesopores and picopores positioned at adjacent to macropores, and the picopores are three dimensionally connected to each other to form a three dimensional network structure. The hollow fiber includes a polymer derived from polyamic acid, and the polyamic acid includes a repeating unit obtained from aromatic diamine including at least one ortho-positioned functional group with respect to an amine group and dianhydride.