Photoconductive imaging members
US6495300B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2001 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Jul 2, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/14786
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photoconductive imaging member containing an optional supporting substrate, a photogenerating layer, a charge transport layer, and an overcoating layer comprised of a crosslinked composite polysiloxane-silica generated from the reaction of a silyl-functionalized hydroxyalkyl polymer of Formula (I) with an organosilane of Formula (II) in the presence of silica particles and water wherein A, B, D, and F represent the segments of the polymer backbone; E is a hole transporting moiety; X is selected from the group consisting of halide, cyano, alkoxy, acyloxy, and aryloxy; a, b, c, and d each represent mole fractions of the repeating monomer units such that the sum of a+b+c+d is equal to about 1; R is alkyl, substituted alkyl, aryl, or substituted aryl, and R1, R2, and R3 are independently selected from the group consisting of alkyl, aryl, alkoxy, aryloxy, acyloxy, halide, cyano, and amino, subject to the provision that two of R1, R2, and R3 are each independently selected from the group consisting of alkoxy, aryloxy, acyloxy, and halide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.