Title:
AQUEOUS SOLVENT SOLUTION OF POLYIMIDE PRECURSOR AND ORIENTED LIQUID CRYSTAL FILM
Document Type and Number:
Japanese Patent JP2001115019
Kind Code:
A
Abstract:
To provide an aqueous solvent solution of a polyimide precursor free from polyamic acid.
The aqueous solvent solution of a polyimide precursor is produced by dissolving a compound expressed by general formula (1) (R1 is a bivalent organic group) and a compound expressed by general formula (2) (R2 is a tetravalent organic group; R3 and R4 are each H or a 1-12C alkyl) in an aqueous solvent.
More Like This:
Inventors:
KUMAGAI YOSHIHIRO
Application Number:
JP29682099A
Publication Date:
April 24, 2001
Filing Date:
October 19, 1999
Export Citation:
Assignee:
NIPPON MITSUBISHI OIL CORP
International Classes:
C08J5/18; C08L79/08; G02F1/1337; (IPC1-7): C08L79/08; C08J5/18; G02F1/1337
Attorney, Agent or Firm:
Hideyo Okazawa (1 person outside)