Title:
POLYIMIDE RESIN PRECURSOR AND POLYIMIDE RESIN
Document Type and Number:
WIPO Patent Application WO/2023/234085
Kind Code:
A1
Abstract:
Provided is a polyimide resin precursor comprising a repeating unit represented by general formula (1) below or a repeating unit represented by general formula (1) below and a repeating unit represented by general formula (2) below, wherein the total of the repeating unit represented by general formula (1) and the repeating unit represented by general formula (2) is 70 to 100 mol % inclusive based on all the repeating units of the polyimide resin precursor, and the ratio of the repeating unit represented by general formula (1) is 30 to 100 mol % based on the total of the repeating unit represented by general formula (1) and the repeating unit represented by general formula (2). This polyimide resin precursor has excellent heat resistance, and a polyimide resin having a low linear expansion coefficient as well as excellent elongation and mechanical strength can be obtained.
Inventors:
ABIKO YOHEI (JP)
ISHII KENTARO (JP)
MURAYA TAKAHIRO (JP)
ISHII KENTARO (JP)
MURAYA TAKAHIRO (JP)
Application Number:
PCT/JP2023/018858
Publication Date:
December 07, 2023
Filing Date:
May 22, 2023
Export Citation:
Assignee:
MITSUBISHI GAS CHEMICAL CO (JP)
International Classes:
C08G73/10; C08J5/18
Foreign References:
| JPH11199668A | 1999-07-27 | |||
| CN113563585A | 2021-10-29 | |||
| JP2015135464A | 2015-07-27 |
Other References:
HASEGAWA, M. ; SAKAMOTO, Y. ; TANAKA, Y. ; KOBAYASHI, Y.: "Poly(ester imide)s possessing low coefficients of thermal expansion (CTE) and low water absorption (III). Use of bis(4-aminophenyl)terephthalate and effect of substituents", EUROPEAN POLYMER JOURNAL, PERGAMON PRESS LTD OXFORD, GB, vol. 46, no. 7, 1 July 2010 (2010-07-01), GB , pages 1510 - 1524, XP027096600, ISSN: 0014-3057
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
Download PDF: