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1. (WO2001000732) VARNISH COMPOSITION AND LIQUID-CRYSTAL DISPLAY ELEMENT

Pub. No.:    WO/2001/000732    International Application No.:    PCT/JP2000/004054
Publication Date: Fri Jan 05 00:59:59 CET 2001 International Filing Date: Thu Jun 22 01:59:59 CEST 2000
IPC: C08L 79/08
C09D 179/08
C09K 19/30
C09K 19/56
G02F 1/1337
Applicants: CHISSO CORPORATION

TANIOKA, Satoshi

FUKUI, Kumiko

MURATA, Shizuo

ONO, Hiroshi

SHIMIZU, Itsuo

Inventors: TANIOKA, Satoshi

FUKUI, Kumiko

MURATA, Shizuo

ONO, Hiroshi

SHIMIZU, Itsuo

Title: VARNISH COMPOSITION AND LIQUID-CRYSTAL DISPLAY ELEMENT
Abstract:
A varnish composition which comprises a solvent and a polymer ingredient comprising a polyamic acid (B) (having residues which are derived from a tetracarboxylic acid and a diamine respectively and which are residues having no pendant groups or residues having a pendant C1-2 alkyl group or are residues having a composition comprising a mixture of these), a polyamic acid (A) (having residues which are derived from a tetracarboxylic acid and a diamine respectively and at least either of which is a residue having a pendant C3+ alkyl group or is a residue having a composition containing that residue), and a soluble polyimide, and in which the proportion of the polyamic acid (A) to the soluble polyimide is 1/99 to 99/1 by weight, the sum of the polyamic acid (A) and the soluble polyimide accounts for 1 to 80 wt.% of the polymer ingredient, the polyamic acid (B) accounts for 99 to 20 wt.% of the polymer ingredient, and the proportion of the polymer ingredient in the whole varnish composition is 0.1 to 40 wt.%. Also provided is a liquid-crystal display element having an alignment film formed from this varnish composition.