Title:
POLYIMIDE FILM HAVING EXCELLENT WEATHER RESISTANCE
Document Type and Number:
WIPO Patent Application WO/2021/117961
Kind Code:
A1
Abstract:
The present invention relates to a polyimide film in which at least one diamine and at least one acid dianhydride are polymerized, and more specifically, to a polyimide film which has excellent transparency, in addition to having excellent weatherability and visibility due to being prone to minimal color change from external UV exposure, and thus can be used for cover windows.
Inventors:
AHN KYUNGIL (KR)
LEE HOYONG (KR)
KIM WONKYUM (KR)
SHIM JAEHYUN (KR)
KIM DONGYOUN (KR)
LEE HOYONG (KR)
KIM WONKYUM (KR)
SHIM JAEHYUN (KR)
KIM DONGYOUN (KR)
Application Number:
PCT/KR2019/018376
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:
| KR20100035596A | 2010-04-05 | |||
| KR20140118386A | 2014-10-08 | |||
| KR20180039893A | 2018-04-19 | |||
| KR20170100794A | 2017-09-05 | |||
| KR20170073977A | 2017-06-29 |
Attorney, Agent or Firm:
WETHEPEOPLE IP & LAW FIRM (KR)
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