Patent ID: 7750185
Filing Date: 2010-07-06
Classification: C07J,C08G,C09K,G02F

Abstract:
1. Diamine compounds represented by the general formula I: wherein A 1 and A 2 each independently represent a mesogen group represented by general formula II: wherein C D represents a hydrogen atom, a halogen atom, a cyano group, or a straight-chain or branched alkyl residue which is unsubstituted, mono-substituted by cyano or fluorine, chlorine, or poly-substituted by fluorine, chlorine, having 1 to 24 carbon atoms, or a straight-chain or branched alkyl residue which is unsubstituted, mono-substituted by cyano or fluorine, chlorine, or poly-substituted by fluorine, chlorine, having 1 to 24 carbon atoms, wherein one or more non-adjacent —CH S Z1, Z2 each independently of the other represent a single bond or a spacer unit which is straight-chain or branched alkylene group which is unsubstituted, mono or polysubstituted by a cyano group or by halogen atoms, having 1 to 8 carbon atoms or a spacer unit such a straight-chain or branched alkylene group which is unsubstituted, mono or poly-substituted by a cyano group or by halogen atoms, having 1 to 8 carbon atoms, wherein one or more non-adjacent —CH n1 is 0 or 1, and n2 and n3 are 1; and B represents a group selected from —O—, —CO—, —CO—O—, —O—CO—, —NR