Title:
NOVEL DIAMINE, METHOD FOR PRODUCING SAME, AND POLYAMIC ACID AND POLYIMIDE PRODUCED FROM SAID DIAMINE
Document Type and Number:
WIPO Patent Application WO/2023/203897
Kind Code:
A1
Abstract:
The present invention provides a diamine represented by formula (1); a method for producing the same; and a polyamic acid and polyimide produced from this diamine.
Inventors:
SAKAGUCHI YUJI (JP)
YUASA RYOKI (JP)
NAKATSUJI HIDEFUMI (JP)
YUASA RYOKI (JP)
NAKATSUJI HIDEFUMI (JP)
Application Number:
PCT/JP2023/008307
Publication Date:
October 26, 2023
Filing Date:
March 06, 2023
Export Citation:
Assignee:
TAOKA CHEMICAL CO LTD (JP)
International Classes:
C07C229/60; C07C205/57; C07C227/04; C08G73/10
Domestic Patent References:
| WO2022239534A1 | 2022-11-17 |
Foreign References:
| JP2008255252A | 2008-10-23 | |||
| CN114989429A | 2022-09-02 |
Other References:
HASEGAWA MASATOSHI, HISHIKI TOMOAKI: "Poly(ester imide)s Possessing Low Coefficients of Thermal Expansion and Low Water Absorption (V). Effects of Ester-linked Diamines with Different Lengths and Substituents", POLYMERS, vol. 12, no. 4, 8 April 2020 (2020-04-08), pages 859, XP093101104, DOI: 10.3390/polym12040859
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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