Patent ID: 7439002
Filing Date: 2008-10-21
Classification: G03G

Abstract:
1. An electrophotographic imaging member having a silicone overcoat (SOC) layer, the SOC layer including a crosslinked polysiloxane composition and having a thickness of from about 1 micrometer to about 5 micrometers, wherein the crosslinked polysiloxane composition is the product of the hydrolysis and condensation of a SOC formulation comprising a perfluoropolyether compound represented by Formula (I), an aromatic silicon-containing compound represented by Formula (II), and a silicon-containing hole transport compound represented by Formula (III): wherein f is an integer from 1 to about 6; x is an integer from about 2 to about 500; G is a functional group connected to the end of the perfluoropolyether chain or grafted to the polymer backbone thereof; p is an integer from 1 to about 100; and G is selected from the group consisting of —OH, —CH 2 OH, —CH 2 (OCH 2 CH 2 ) k OH, —CH 2 OCH 2 CH(OH)CH 2 OH, —CO 2 H, —SiE q (Y) 3-q , and —(CH 2 ) d SiE q (Y) 3-q , where E is alkyl having from 1 to 6 carbon atoms, q is an integer from 0 to 2, d is an integer from 1 to about 6, and Y is selected from the group consisting of hydroxy, acetoxy, alkoxy having from 1 to 6 carbon atoms, and halide; B is a hole transport moiety; L is a divalent linkage; R is selected from alkyl, arylalkyl, aryl, and alkylaryl; X is a hydrolytic group; m is an integer from 1 to 6; and n is an integer from 0 to 2; and wherein the aromatic silicon-containing compound of Formula (II) is selected from the group consisting of the following Formulas (II-1), (II-2), and (II-3): wherein R′ is alkyl having from 1 to 4 carbon atoms.