| http://www.w3.org/ns/prov#value | - hthalocyanine; magnesium phthalocyanine; and the like, and mixtures thereof A specific class of hole transporting materials are the aromatic tertiary amines such as those disclosed in U.S. Pat. Nos. 4,539,507; 4,720,432 and 5,061,569, the disclosures of which are totally incorporated herein by reference, such as bis(4-dimethylamino-2-methylphenyl)phenylmethane, N,N,N-tri(p-tolyl)amine, 1,1-bis(4-d
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