Patent ID: 7976957

Claim:
An aromatic amine derivative represented by following general formula (1): wherein R 1 to R 6 each independently represent a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, a substituted or unsubstituted alkoxyl group having 1 to 10 carbon atoms or a substituted or unsubstituted phenyl group, R 7 represents a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms or a substituted or unsubstituted alkoxyl group having 1 to 10 carbon atoms, a, b, d, e and g each represent an integer of 0 to 4, c and f each represent an integer of 0 to 5, and m represents an integer of 1 to 3; and Ar 1 and Ar 2 both represent p-biphenyl group or Ar 1 and Ar 2 each represent a group represented by following general formula (2), (3) or (4): in general formula (2), R 8 representing a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, a substituted or unsubstituted alkoxyl group having 1 to 10 carbon atoms or a substituted or unsubstituted phenyl group, Ar 3 representing a substituted or unsubstituted α-naphthyl group bonded to p-position or Ar 3 representing a substituted or unsubstituted phenyl group, a substituted or unsubstituted α-naphthyl group, a substituted or unsubstituted β-naphthyl group or a substituted or unsubstituted ortho-(o-), meta-(m-) or para-(p-)biphenyl group, each bonded to o- or m-position, and n representing an integer of 0 to 4; in general formula (3), R 9 and R 10 each independently representing a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, a substituted or unsubstituted alkoxyl group having 1 to 10 carbon atoms or a substituted or unsubstituted phenyl group, Ar 4 representing a substituted or unsubstituted phenyl group, bonding position of the group represented by Ar 4 being o- or p-position, and i and j each representing an integer of 0 to 4; and in general formula (4), R 11 and R 12 each independently representing a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, a substituted or unsubstituted alkoxyl group having 1 to 10 carbon atoms or a substituted or unsubstituted phenyl group, p representing an integer of 0 to 3, q representing an integer of 0 to 4, R 13 and R 14 each independently representing single bond, hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms or a group represented by following general formula (5), and r representing an integer of 1 or 2; —(CR 15 R 16 ) s — (5) in general formula (5), R 15 and R 16 each independently representing hydrogen atom or a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, and s representing an integer of 3 to 6.