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:
Sep. 08, 2020
Filed:
Oct. 18, 2017
Applicant:
Taimide Tech. Inc., Hsinchu, TW;
Inventor:
Wen-Hsuan Chung, Hsinchu, TW;
Assignee:
TAIMIDE TECH. INC., Hsinchu, TW;
Primary Examiner:
Int. Cl.
CPC ...
C08G 73/10 (2006.01); C08J 5/22 (2006.01); C08K 5/3432 (2006.01); C08K 5/3465 (2006.01); C08L 79/08 (2006.01); C08J 5/18 (2006.01);
U.S. Cl.
CPC ...
C08G 73/1021 (2013.01); C08G 73/1039 (2013.01); C08J 5/18 (2013.01); C08J 5/2218 (2013.01); C08K 5/3432 (2013.01); C08K 5/3465 (2013.01); C08L 79/08 (2013.01); C08J 2379/08 (2013.01); C08L 2201/10 (2013.01);
Abstract
The instant disclosure relates to a method for manufacturing a transparent polyimide film, including providing a polyamic acid solution having a fluorine content more than 12%; adding a dehydrating agent and a catalyst into the polyamic acid solution, the dehydrating agent having an equivalent number equal to or larger than 3; and baking the polyamic acid solution under a temperature ranging from 250 to 350° C. for performing a chemical imidization process so that the transparent polyimide film is obtained. The transparent polyimide film has an elongation rate of more than 30% and a b* value in a CIELAB coordinate of less than 3.5.