Invention Grant
- Patent Title: Method for manufacturing transparent polyimide film
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Application No.: US15786672Application Date: 2017-10-18
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Publication No.: US10767014B2Publication Date: 2020-09-08
- Inventor: Wen-Hsuan Chung
- Applicant: TAIMIDE TECH. INC.
- Applicant Address: TW Hsinchu
- Assignee: TAIMIDE TECH. INC.
- Current Assignee: TAIMIDE TECH. INC.
- Current Assignee Address: TW Hsinchu
- Agency: Li & Cai Intellectual Property (USA) Office
- Main IPC: C08G73/10
- IPC: C08G73/10 ; C08J5/22 ; C08K5/3432 ; C08K5/3465 ; C08L79/08 ; C08J5/18

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.
Public/Granted literature
- US20190112425A1 METHOD FOR MANUFACTURING TRANSPARENT POLYIMIDE FILM Public/Granted day:2019-04-18
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