Patent ID: 8017807
Filing Date: 2011-09-13
Classification: C07C,G03G,Y02E,Y02P

Abstract:
1. A tetrahydroxy compound having the following formula (1): wherein each of Ar 1 and Ar 2 represents a substituted or unsubstituted arylene group; X represents a divalent group having one of the following formulae (2) to (4): wherein Ar 3 represents a substituted or unsubstituted arylene group; each of Ar 4 and Ar 5 represents a substituted or unsubstituted aryl group, wherein Ar 6 represents a substituted or unsubstituted arylene group or a substituted or unsubstituted aryl group; and each of Ar 7 and Ar 8 represents a substituted or unsubstituted aryl group; and n is 0, 1 or 2, and wherein R 1 represents a hydrogen atom or a substituted or unsubstituted alkyl group; Ar 9 represents a substituted or unsubstituted arylene group; and each of Ar 10 and Ar 11 represents a substituted or unsubstituted aryl group.