Photoconductive polymer compositions and their use
AssigneeE. I. Du Pont de Nemours and Company
InventorsNorman Herron, Ying Wang
Life of this patent
Estimating the term…
Abstract
The photoconductive range of a photoconductive polymer can be extended to include longer wavelengths, and/or the photo-induced discharge rate of a photoconductive polymer can be increased by incorporating effective amounts of clusters of IIB-VIB, IIB-VB, IIIB-VB, IIIB-VIB, IB-VIB and/or IVB-VIIB semiconductors, said clusters having a size within the range of from about 0.001 .mu.m to 10 .mu.m. Compositions comprising a photoconductive polymer and an effective amount of said clusters may be used in electrostatic imaging processes.
Claims18
A method of extending the photoconductive range of a photoconductive polymer to include longer wavelengths comprising the step of:
- forming a photoconductive composition by incorporating into said polymer an effective amount, within the range from about 0.1 to 50 percent by weight of the resulting photoconductive composition, of clusters of at least one inorganic semiconductor selected from the group consisting of IIB-VIB semiconductors, IIB-VB semiconductors, IIIB-VB semiconductors, IIIB-VIB semiconductors, IB-VIB semiconductors and IVB-VIIB semiconductors, wherein said clusters have a size within the range of from about 0.001 .mu.m to 10 .mu.m.
A method of increasing the photo-induced discharge rate of a photoconductive polymer comprising the step of:
- forming a photoconductive composition by incorporating into said polymer an effective amount, within the range of from about 0.01 to 50 percent by weight of the resulting photoconductive composition, of clusters of at least one inorganic semiconductor selected from the group consisting of IIB-VIB semiconductors, IIB-VB semiconductors, IIIB-VB semiconductors, IIIB-VIB semiconductors, IB-VIB semiconductors and IVB-VIIB semiconductors, wherein said clusters have a size within the range of from about 0.001 .mu.m to 10 .mu.m.
A photoconductive composition comprising:
- (a) a photoconductive polymer;
- and
- (b) clusters of at least one semiconductor selected from the group consisting of IIB-VIB semiconductors, IIB-VB semiconductors, IIB-VB semiconductors, IIIB-VIB semiconductors, IB-VIB semiconductors and IVB-VIIB semiconductors, wherein said clusters have a size range of from about 0.001 .mu.m to 10 .mu.m and are present in an amount, from 0.01 to 50 percent by weight based upon the total weight of the photoconductive composition, effective to extend the photoconductive range of the composition to include a longer wavelength than the range of said polymer.
A photoconductive composition comprising:
- (a) a photoconductive polymer;
- and
- (b) clusters of at least one semiconductor selected from the group consisting of IIB-VIB semiconductors, IIB-VB semiconductors, IIIB-VB semiconductors, IIIB-VIB semiconductors, IB-VIB semiconductors and IVB-VIIB semiconductors, wherein said clusters have a size range of from about 0.001 .mu.m to 10 .mu.m and are present in an amount, from 0.01 to 50 percent by weight based upon the total weight of the photoconductive composition, effective to provide a photo-induced discharge rate which is higher than the rate of said polymer.
Dependencies are inferred from the claim text.