Title:
POLYAMIC ACID, POLYIMIDE FILM, AND FLEXIBLE METAL CLAD LAMINATE USING SAME
Document Type and Number:
WIPO Patent Application WO/2023/090968
Kind Code:
A1
Abstract:
The present invention provides a polyamic acid, polyimide film and a flexible metal clad laminate using same, the polyamic acid comprising the following components copolymerized: an acid dianhydride component comprising biphenyl-tetracarboxylic acid dianhydride (BPDA), pyromellitic dianhydride (PMDA) and p-phenylenebis(trimellitate anhydride) (TAHQ); and a diamine component comprising m-tolidine and para-phenylenediamine (PPD).
Inventors:
BACK SUNG-YUL (KR)
LEE KIL-NAM (KR)
CHO MIN-SANG (KR)
CHAE SU-KYUNG (KR)
LEE KIL-NAM (KR)
CHO MIN-SANG (KR)
CHAE SU-KYUNG (KR)
Application Number:
PCT/KR2022/018410
Publication Date:
May 25, 2023
Filing Date:
November 21, 2022
Export Citation:
Assignee:
PI ADVANCED MAT CO LTD (KR)
International Classes:
C08G73/10; B32B15/08; C08J5/18
Foreign References:
| KR20210057939A | 2021-05-24 | |||
| KR20200044404A | 2020-04-29 | |||
| KR950007999A | 1995-04-15 | |||
| KR20210037331A | 2021-04-06 | |||
| KR20200051261A | 2020-05-13 |
Attorney, Agent or Firm:
HANYANG PATENT FIRM (KR)
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