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. 11, 2008
Filed:
Mar. 29, 2005
Soo-bok Lee, Daejeon, KR;
Jeong Hoon Kim, Daejeon, KR;
IN Jun Park, Daejeon, KR;
Dong-kwon Kim, Daejeon, KR;
Jong-wook Ha, Daejeon, KR;
Bong-jun Chang, Daejeon, KR;
Kwang-won Lee, Daejeon, KR;
Kwang-han Kim, Daejeon, KR;
Sang-yun Lee, Daejeon, KR;
Sang-man Ahn, Daejeon, KR;
Seung-hak Choi, Kangwondo, KR;
Soo-Bok Lee, Daejeon, KR;
Jeong Hoon Kim, Daejeon, KR;
In Jun Park, Daejeon, KR;
Dong-Kwon Kim, Daejeon, KR;
Jong-Wook Ha, Daejeon, KR;
Bong-Jun Chang, Daejeon, KR;
Kwang-Won Lee, Daejeon, KR;
Kwang-Han Kim, Daejeon, KR;
Sang-yun Lee, Daejeon, KR;
Sang-Man Ahn, Daejeon, KR;
Seung-Hak Choi, Kangwondo, KR;
Abstract
A novel polyvinyl alcohol-based polymer membrane is disclosed. The novel polyvinyl alcohol-based polymer membrane of the present invention comprises two different compounds which are crosslinked by irradiating light such as UV or electronic beams or heat treatment to form a covalent bond between double bonds thereby providing improved properties such as chemical resistance and durability. This invention also relates to a process its preparation.