Mittel zur Orientierung für Flüssigkristallzellen

摘要

An agent for alignment treatment for a liquid crystal cell, which comprises an organic solvent-soluble polyimide obtained by reacting and polymerizing a tetracarboxylic acid component with a diamine component and a dicarboxylic acid component containing a long chain alkyl group and/or a monoamine component containing a long chain alkyl group, followed by imide-formation.