Title:
NOVEL CARBOXYLIC ACID ANHYDRIDES, AMINE COMPOUNDS, POLYIMIDE RESIN, AND PROCESS FOR THE PRODUCTION OF THESE
Document Type and Number:
WIPO Patent Application WO/1997/002233
Kind Code:
A1
Abstract:
Azoic carboxylic acid anhydrides of general formula (A-Ia) and amine compounds of general formula (B-Ia): [wherein L is hydrogen or the like; X2 is N or CR3 (R3 being hydrogen or the like); and n is an integer of 2 to 20]; and a polyimide resin containing at least one of the acid anhydrides and amine compounds and is useful as a rubbingless liquid-crystal alignment film.
Inventors:
HONDA YUTAKA (JP)
FUKUCHI IWAO (JP)
MIYADERA NOBUO (JP)
KATO TOSHIHIKO (JP)
JOHAR PERMINDER SINGH (IN)
FUKUCHI IWAO (JP)
MIYADERA NOBUO (JP)
KATO TOSHIHIKO (JP)
JOHAR PERMINDER SINGH (IN)
Application Number:
PCT/JP1996/001887
Publication Date:
January 23, 1997
Filing Date:
July 08, 1996
Export Citation:
Assignee:
HITACHI CHEMICAL CO LTD (JP)
HONDA YUTAKA (JP)
FUKUCHI IWAO (JP)
MIYADERA NOBUO (JP)
KATO TOSHIHIKO (JP)
JOHAR PERMINDER SINGH (IN)
HONDA YUTAKA (JP)
FUKUCHI IWAO (JP)
MIYADERA NOBUO (JP)
KATO TOSHIHIKO (JP)
JOHAR PERMINDER SINGH (IN)
International Classes:
C07C245/08; C07C251/24; C08G73/10; G02F1/1337; (IPC1-7): C07C217/86; C07C213/06; C07C245/08; C07C251/24; C07D307/78; C08G73/10; C08G73/12; G02F1/1337
Foreign References:
| JPH0812759A | 1996-01-16 | |||
| JPH0848772A | 1996-02-20 | |||
| JPH0643465A | 1994-02-18 | |||
| JPH05214101A | 1993-08-24 | |||
| JPH03250028A | 1991-11-07 | |||
| US3597392A | 1971-08-03 | |||
| JPS4530471B1 |
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