Title:
LOW-DIELECTRIC POLYAMIC ACID COMPRISING LIQUID CRYSTAL POWDER, POLYIMIDE FILM, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2022/108296
Kind Code:
A1
Abstract:
The present invention relates to a low-dielectric polyamic acid comprising liquid crystal polymer powder, a polyimide film, and a method for producing same, the polyimide film comprising: 10-40 wt% of liquid crystal polymer powder; and a dianhydride acid component including benzophenonetetracarboxylic dianhydride (BTDA), biphenyl-tetracarboxylic dianhydride (BPDA), and pyromellitic dianhydride (PMDA), and a diamine component including m-tolidine and para-phenylenediamine (PPD).
Inventors:
YEO MOON-JIN (KR)
LEE KIL-NAM (KR)
LEE KIL-NAM (KR)
Application Number:
PCT/KR2021/016741
Publication Date:
May 27, 2022
Filing Date:
November 16, 2021
Export Citation:
Assignee:
PI ADVANCED MAT CO LTD (KR)
International Classes:
C08L79/08; B32B15/08; B32B27/08; B32B27/28; C08G73/10; C08J5/18; C08L67/00; C09D179/04
Domestic Patent References:
| WO2017150336A1 | 2017-09-08 |
Foreign References:
| KR20200120492A | 2020-10-21 | |||
| JP2009272583A | 2009-11-19 | |||
| JP2009269372A | 2009-11-19 | |||
| KR20200052847A | 2020-05-15 |
Attorney, Agent or Firm:
HANYANG PATENT FIRM (KR)
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