| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an acid dianhydride compound whose liquid crystal alignment expression in the photo-orientation method is a monomer for an expected polyimide and excellent in organic solvent solubility, and to provide the liquid crystal oriented film, its manufacturing method, a polyamic acid, and a polyimide. <P>SOLUTION: There are provided a compound expressed by formula (1), ( wherein R<SP POS="POST">1</SP>, R<SP POS="POST">2</SP>, R<SP POS="POST">3</SP>, R<SP POS="POST">4</SP>and R<SP POS="POST">5</SP>are each independently expressed by a hydrogen atom, a 1-20C alkyl group, a 1-20C haloalkyl group, a 1-20C alkoxy group, a 1-20C haloalkoxy group or 2-20C cyanoalkyl group, m is expressed by an integer of 1-3), its manufacturing method, and the polyimide. <P>COPYRIGHT: (C)2013,JPO&INPIT |
