Title:
POLYIMIDE FILM HAVING EXCELLENT YIELD STRAIN AND FLEXURAL CHARACTERISTICS
Document Type and Number:
WIPO Patent Application WO/2021/117960
Kind Code:
A1
Abstract:
The present invention relates to a polyimide film obtained by copolymerizing at least one type of diamine and at least one type of acid dianhydride, and, more specifically, to a polyimide film having excellent transparency, and ensuring both high yield strain (Y/S) and flexural characteristics so as to be usable as a cover window for a display.
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Inventors:
SHIM JAEHYUN (KR)
LEE HOYONG (KR)
AHN KYUNGIL (KR)
KIM WONKYUM (KR)
KIM DONGYOUN (KR)
LEE HOYONG (KR)
AHN KYUNGIL (KR)
KIM WONKYUM (KR)
KIM DONGYOUN (KR)
Application Number:
PCT/KR2019/018355
Publication Date:
June 17, 2021
Filing Date:
December 24, 2019
Export Citation:
Assignee:
DOOSAN CORP (KR)
International Classes:
C08J5/18; C08G73/10; G02F1/1333
Foreign References:
| KR20140105326A | 2014-09-01 | |||
| KR20150046463A | 2015-04-30 | |||
| KR20180039893A | 2018-04-19 | |||
| KR20170100794A | 2017-09-05 | |||
| KR20190068227A | 2019-06-18 |
Attorney, Agent or Firm:
WE THE PEOPLE IP & LAW FIRM (KR)
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