Title:
POLYIMIDE FILM HAVING HIGH DIMENSIONAL STABILITY AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/114938
Kind Code:
A1
Abstract:
The present invention provides a polyimide film and a manufacturing method therefor, wherein the polyimide film satisfies the following equation (1) as measured for dimensional change by a thermomechanical analyzer (TMA) undergoing a temperature elevation process from 25℃ to 400℃ and then a cooling process from 400℃ to 25℃. Equation (1) dimensional measurement in TD direction (cooling, 50℃)-dimensional measurement in TD direction (temperature elevation, 50℃) < 0 μm
Inventors:
KIM DONG-YOUNG (KR)
YOO DAE-GEON (KR)
WON DONG-YOUNG (KR)
YOO DAE-GEON (KR)
WON DONG-YOUNG (KR)
Application Number:
PCT/KR2021/095108
Publication Date:
June 02, 2022
Filing Date:
November 22, 2021
Export Citation:
Assignee:
PI ADVANCED MAT CO LTD (KR)
International Classes:
C08J5/18; C08G73/10; C23C14/14; C23C14/24; C23C14/34
Foreign References:
| KR20150011323A | 2015-01-30 | |||
| KR20150001662A | 2015-01-06 | |||
| KR20200055879A | 2020-05-22 | |||
| KR20200030268A | 2020-03-20 | |||
| JP2010215840A | 2010-09-30 |
Attorney, Agent or Firm:
HANYANG PATENT FIRM (KR)
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