Title:
POLYIMIDE PRECURSOR SOLUTION AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2018/021747
Kind Code:
A1
Abstract:
The present invention provides a polyimide precursor solution which can enhance the uniformity of a polyimide film and also improve the efficiency of processes by improving liquid curl in a coating process of the polyimide precursor solution. In addition, since polyimide according to the present invention has excellent transparency, heat resistance, mechanical strength and flexibility by comprising a specific structure, the polyimide may be used in various fields, such as substrates for devices, cover substrates for displays, optical films, integrated circuit (IC) packages, adhesive films, flexible printed circuits (FPCs), tapes, touch panels, protective films for optical discs, etc.
Inventors:
YUN CHEOLMIN (KR)
KIM KYUNGJUN (KR)
KIM KYUNGJUN (KR)
Application Number:
PCT/KR2017/007658
Publication Date:
February 01, 2018
Filing Date:
July 17, 2017
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
C08G73/10; C08J5/18; C08K5/5415; C08L79/08
Domestic Patent References:
| WO2016010003A1 | 2016-01-21 |
Foreign References:
| KR20160037489A | 2016-04-06 | |||
| KR20130027442A | 2013-03-15 | |||
| KR20070023778A | 2007-02-28 | |||
| JP2001019847A | 2001-01-23 |
Other References:
See also references of EP 3392293A4
Attorney, Agent or Firm:
KIM, Aera (KR)
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