US 7,320,848 B2 | ||
Poly(azine)-based charge transport materials | ||
Zbigniew Tokarski, Woodbury, Minn. (US); Nusrallah Jubran, St. Paul, Minn. (US); Vytautas Getautis, Kaunas (Lithuania); Vygintas Jankauskas, Vilnius (Lithuania); Tadas Malinauskas, Kaunas (Lithuania); and Edmundas Montrimas, Vilnius (Lithuania) | ||
Assigned to Samsung Electronics Co., Ltd., (Korea, Republic of) | ||
Filed on Mar. 31, 2004, as Appl. No. 10/814,938. | ||
Prior Publication US 2005/0221211 A1, Oct. 06, 2005 | ||
This patent is subject to a terminal disclaimer. | ||
Int. Cl. G03G 5/06 (2006.01) |
U.S. Cl. 430—70 [430/74; 430/126; 548/444] | 14 Claims |
1. A charge transport material comprising a polymer having the formula
![]() where X1 and X2 are, each independently, a linking group;
Ar comprises an aromatic group;
R1, R2, and R3 comprise, each independently, H, an alkyl group, an alkenyl group, an alkynyl group, an aromatic group, or a heterocyclic
group; and
n is a distribution of integers between 1 and 100,000 with an average value of greater than one.
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