Title:
POLYIMIDE FILM HAVING MOISTURE RESISTANCE AND LOW WATER-ABSORPTION PROPERTIES
Document Type and Number:
WIPO Patent Application WO/2021/187882
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 superb moisture resistance and low water-absorption properties, as well as excellent transparency, to thus be usable as a cover window of a display.
Inventors:
LEE HOYONG (KR)
AHN KYUNGIL (KR)
KIM DONGYOUN (KR)
SHIM JAEHYUN (KR)
KIM WONKYUM (KR)
AHN KYUNGIL (KR)
KIM DONGYOUN (KR)
SHIM JAEHYUN (KR)
KIM WONKYUM (KR)
Application Number:
PCT/KR2021/003274
Publication Date:
September 23, 2021
Filing Date:
March 17, 2021
Export Citation:
Assignee:
DOOSAN CORP (KR)
International Classes:
C08J5/18; C08G73/10
Foreign References:
| KR20130074168A | 2013-07-04 | |||
| KR20090027465A | 2009-03-17 | |||
| KR101332627B1 | 2013-11-25 | |||
| JP2014053602A | 2014-03-20 | |||
| KR20150060551A | 2015-06-03 |
Attorney, Agent or Firm:
WETHEPEOPLE IP & LAW FIRM (KR)
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