Title:
POLYIMIDE PRECURSOR SOLUTION
Document Type and Number:
WIPO Patent Application WO/2014/189002
Kind Code:
A1
Abstract:
The purpose of the invention is to provide a polyimide precursor solution having excellent environmental compatibility and good storage stability and leveling properties, the polyimide precursor solution making it possible to produce a polyimide molded article having excellent mechanical strength. The invention provides a polyimide precursor solution obtained by dissolving polyamic acid and a salt of a weakly basic compound having an acid dissociation constant (pKa) of 4.5-8.5 in a solvent containing a polyhydric alcohol.
Inventors:
SHIGETA AKIRA (JP)
YOSHIDA TAKESHI (JP)
YAMADA YUKI (JP)
MORIKITA TATSUYA (JP)
HOSODA MASAHIRO (JP)
ECHIGO YOSHIAKI (JP)
YOSHIDA TAKESHI (JP)
YAMADA YUKI (JP)
MORIKITA TATSUYA (JP)
HOSODA MASAHIRO (JP)
ECHIGO YOSHIAKI (JP)
Application Number:
PCT/JP2014/063215
Publication Date:
November 27, 2014
Filing Date:
May 19, 2014
Export Citation:
Assignee:
UNITIKA LTD (JP)
International Classes:
C08L79/08; C08G73/10
Foreign References:
| JP2008050611A | 2008-03-06 | |||
| JPH08157599A | 1996-06-18 | |||
| JPS5390338A | 1978-08-09 | |||
| JPS52108497A | 1977-09-10 | |||
| JP2013163800A | 2013-08-22 | |||
| JP2014031445A | 2014-02-20 |
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (JP)
Mutsumi Sameshima (JP)
Mutsumi Sameshima (JP)
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