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:
Jun. 23, 2015
Filed:
May. 27, 2011
Applicants:
Chul Ha Ju, Yongin-si, KR;
Hyo Jun Park, Yongin-si, KR;
Hak Gee Jung, Yongin-si, KR;
Inventors:
Assignee:
KOLON INDUSTRIES, INC., Gwacheon-Si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 5/5419 (2006.01); B29D 11/00 (2006.01); C08J 5/18 (2006.01); C08K 5/5415 (2006.01); C08L 79/08 (2006.01); C09D 179/08 (2006.01); C08G 73/10 (2006.01);
U.S. Cl.
CPC ...
B29D 11/00788 (2013.01); C08K 5/5419 (2013.01); C08J 5/18 (2013.01); C08J 2379/08 (2013.01); C08K 5/5415 (2013.01); C08L 79/08 (2013.01); C09D 179/08 (2013.01); C08G 73/1039 (2013.01); C08G 73/1042 (2013.01); C08G 73/1067 (2013.01);
Abstract
The present invention relates to a transparent polyimide film with improved tensile strength and a preparation method thereof, and more specifically to a colorless, transparent polyimide film having excellent optical properties and improved tear strength at the same time through the use of a monomer containing a functional group or an improver for improving tensile strength, and a preparation method thereof, wherein the functional group is selected from the group consisting of a hexafluoro group, a sulfone group, and an oxy group.