Patent ID: 7642380

Claim:
An aromatic amine derivative represented by the following general formula (I): wherein R 1 to R 10 are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted aryl group having 5 to 50 ring carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted cycloalkyl group having 5 to 50 ring carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 50 carbon atoms, a substituted or unsubstituted aryloxy group having 5 to 50 ring carbon atoms, a substituted or unsubstituted arylamino group having 5 to 50 ring carbon atoms, a substituted or unsubstituted alkylamino group having 1 to 20 carbon atoms, a substituted or unsubstituted silyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring carbon atoms; and Ar 1 to Ar 4 are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted aryl group having 5 to 50 ring carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted cycloalkyl group having 5 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring carbon atoms, with the proviso that when Ar 1 to Ar 4 are aryl groups, Ar 1 and Ar 2 , and Ar 3 and Ar 4 may be respectively bonded to each other to form a saturated or unsaturated ring.