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Patent Searching and Data


Title:
COMPOSITION FOR POLYIMIDE FILM FOR FLEXIBLE SUBSTRATE OF OPTOELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/140559
Kind Code:
A1
Abstract:
The present invention relates to a polyimide precursor composition for a flexible substrate of an optoelectronic device, the composition containing a polyimide precursor derived from a diamine or acid dianhydride and having a structure of chemical formula 1, and to a polyimide film manufactured from the same. The polyimide film, which is obtained by coating and curing the precursor composition according to the present invention on a substrate, retains high transparency and heat resistance, and has excellent dimensional stability due to no increase in the substrate stress in spite of high-temperature heat treatment.

Inventors:
YUN CHEOLMIN (KR)
SHIN BORA (KR)
JEONG HYE WON (KR)
KIM KYUNGJUN (KR)
Application Number:
PCT/KR2016/002263
Publication Date:
September 09, 2016
Filing Date:
March 07, 2016
Export Citation:
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Assignee:
LG CHEMICAL LTD (KR)
International Classes:
C08G73/12; B32B27/34; C08G73/10; C08G77/04; C08J5/18; C08K3/36; G02F1/1333; H01L31/042
Foreign References:
KR101236256B12013-02-22
KR20010037632A2001-05-15
JP2011213853A2011-10-27
KR19990069076A1999-09-06
KR20120069382A2012-06-28
Other References:
See also references of EP 3266808A4
None
Attorney, Agent or Firm:
KIM, Aera (KR)
김애라 (KR)
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