Title:
META-ESTER AROMATIC DIAMINES, METHOD FOR PRODUCING SAME, AND POLYIMIDE HAVING SAID META-ESTER AROMATIC DIAMINES AS RAW MATERIAL
Document Type and Number:
WIPO Patent Application WO/2022/239534
Kind Code:
A1
Abstract:
[Abstract] [Problem] The purpose of the present invention is to provide novel meta-ester aromatic diamines, a method for producing the same, and polyimide synthesis. [Solution] Provided are compounds represented by formula (1). In formula (1), X is (a), (b), (c), or (d). R1, R2, R3, and R4 in formula (1), and R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, and R20 in (a), (b), (c), and (d), are each independently a hydrogen atom, an optionally substituted C1-6 alkyl group, or a C1-3 alkoxy group; however, at least one of R7, R8, R9, and R10 is the alkyl group or alkoxy group.
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Inventors:
IMOTO MITSUTAKA (JP)
MIYATA YASUYUKI (JP)
TAKEDA MOTONORI (JP)
NISHIYAMA KAZUHIDE (JP)
YAMATO HITOSHI (JP)
MIYATA YASUYUKI (JP)
TAKEDA MOTONORI (JP)
NISHIYAMA KAZUHIDE (JP)
YAMATO HITOSHI (JP)
Application Number:
PCT/JP2022/014457
Publication Date:
November 17, 2022
Filing Date:
March 25, 2022
Export Citation:
Assignee:
SEIKA SANGYO CO LTD (JP)
International Classes:
C07C229/60; C07B61/00; C07C227/04; C07C315/04; C07C317/22; C08G73/10
Domestic Patent References:
| WO2001032749A1 | 2001-05-10 |
Foreign References:
| CN112500307A | 2021-03-16 | |||
| JP2009286854A | 2009-12-10 | |||
| JPS59149928A | 1984-08-28 | |||
| US3756983A | 1973-09-04 | |||
| JP2010007034A | 2010-01-14 | |||
| JPH04331143A | 1992-11-19 |
Other References:
LIAW D.-J., LIN S.-P., LIAW B.-Y.: "PHOTOLYSIS OF BISPHENOL-BASED POLYURETHANES IN SOLUTION.", JOURNAL OF POLYMER SCIENCE : PART A: POLYMER CHEMISTRY, INTERSIENCE PUBLISHERS , NEW YORK , NY, US, vol. 37., no. 09., 1 May 1999 (1999-05-01), US , pages 1331 - 1339., XP000803982, ISSN: 0360-6376
Attorney, Agent or Firm:
MATSUI Mitsuo et al. (JP)
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