Title:
POLY(AMIC ACID) VARNISH AND METHOD FOR PRODUCING POLY(AMIC ACID) VARNISH
Document Type and Number:
WIPO Patent Application WO/2023/032648
Kind Code:
A1
Abstract:
A poly(amic acid) varnish which comprises a solvent and a poly(amic acid) obtained by reacting a tetracarboxylic acid and a diamine and which, when examined after having been introduced into a cell with an optical path length of 10 mm and been degassed therein for 15 minutes, has a light transmittance at 390-nm wavelength of 70% or greater.
Inventors:
HISAMUNE YUTAKA
FUKUKAWA KENICHI
OKAZAKI MASAKI
URAKAMI TATSUHIRO
FUKUKAWA KENICHI
OKAZAKI MASAKI
URAKAMI TATSUHIRO
Application Number:
PCT/JP2022/030859
Publication Date:
March 09, 2023
Filing Date:
August 15, 2022
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
C08G73/10; C08K5/3415; C08L79/08
Foreign References:
| JP2005163012A | 2005-06-23 | |||
| JP2013164499A | 2013-08-22 | |||
| JPH0848776A | 1996-02-20 | |||
| JP2001323061A | 2001-11-20 | |||
| JP2003327646A | 2003-11-19 | |||
| JP2021014564A | 2021-02-12 | |||
| JP2020059785A | 2020-04-16 |
Attorney, Agent or Firm:
WASHIDA & ASSOCIATES (JP)
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