Title:
CROSS-LINKED POLYAMIC ACID ESTER AND PREPARATION METHOD THEREFOR, POLYIMIDE COMPOSITION COMPRISING SAME, AND METHOD FOR PREPARING POLYIMIDE RESIN FILM
Document Type and Number:
WIPO Patent Application WO/2023/133943
Kind Code:
A1
Abstract:
A cross-linked polyamic acid ester. The cross-linked polyamic acid ester has structural units linked by means of a cross-linked structure. Each structural unit has a structure as shown in general formula I, wherein Ar1 is a dianhydride monomer residue, Ar2 is a diamine monomer residue, and ﹋ is a linking site linked to the cross-linked structure; and n in each structural unit is independently selected from any integer in the range of 5-2000. The cross-linked structure -AR3- is a polyphenol cross-linking agent residue. By means of a cross-linked network, a polyamic acid ester can effectively resist development by an alkaline developing solution; and a small amount of a photo acid generator or photo base generator is used for generating an organic strong acid or organic strong base to hydrolyze the polyamic acid ester in order to form an alkaline soluble polyamic acid, such that a relatively large dissolution rate contrast value can be obtained, and furthermore a polyimide resin film having a good positive pattern quality, a high heat-resistant resolution, a high sensitivity and a large contrast ratio can be formed.
Inventors:
TENG CHAO (CN)
YANG QINGYIN (CN)
ZHENG JUNWEN (CN)
YANG QINGYIN (CN)
ZHENG JUNWEN (CN)
Application Number:
PCT/CN2022/073966
Publication Date:
July 20, 2023
Filing Date:
January 26, 2022
Export Citation:
Assignee:
SHENZHEN VOCATIONAL AND TECHNICAL COLLEGE (CN)
International Classes:
C08G73/10; C08L79/08; G03F7/004; G03F7/039
Foreign References:
| JP2010169944A | 2010-08-05 | |||
| JP2014178400A | 2014-09-25 | |||
| CN107001629A | 2017-08-01 | |||
| CN1356356A | 2002-07-03 | |||
| CN1457454A | 2003-11-19 | |||
| CN111171317A | 2020-05-19 | |||
| CN107407878A | 2017-11-28 | |||
| CN1577088A | 2005-02-09 | |||
| CN1842744A | 2006-10-04 |
Other References:
HAI-QUAN GUO, YANG ZHENG- HUA; GAO LIAN-XUN: "Progress Research on Photosensitive Polyimide ", CHINESE JOURNAL OF APPLIED CHEMISTRY, vol. 38, no. 9, 10 September 2021 (2021-09-10), pages 1119 - 1137, XP093078977
Attorney, Agent or Firm:
SUZHOU MANTIANXING INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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