Azine-based dimeric charge transport materials

US7115347B2 · kind B2 · utility

Assignee

• SAMSUNG ELECTRONICS CO., LTD. · KR

Inventors

• Zbigniew Tokarski · Woodbury, US
• Nusrallah Jubran · Windom, US
• Vytautas Getautis · Kaunas, LT
• Valentas Gaidelis · Vilnius, LT
• Maryte Daskeviciene · Jonava, LT
• Edmundas Montrimas · Vilnius, LT
• Ingrida Paulauskaite · Kaunas, LT
• Jonas Sidaravicius · Vilnius, LT

Key dates

• Filing date: Jan 16, 2004
• Grant date: Oct 3, 2006
• Expiry date: Jan 16, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2603/18
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the formulawhere R1, R2, R3, and R4 comprise, each independently, an alkyl group, an alkenyl group, an aromatic group, a heterocyclic group, or a part of a ring group; X and X′ comprise, each independently, an aromatic group; Y and Y′ comprise, each independently, a (disubstituted)methylene group; and Z is a linking group; (b) a charge generating compound; and (c) an electrically conductive substrate on which said charge transport material and said charge generating compound are located. Corresponding electrophotographic apparatuses and imaging methods are also described.