Charge generation agent electrophotographic photoconductors and method for making same
US5905009A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1997 |
| Grant date | May 18, 1999 |
| Priority date | — |
| Expiry date | Oct 8, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0616
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A charge generation material for an electrophotographic photoconductor includes a titanyloxyphthalocyanine molecular aggregate. The titanyloxyphthalocyanine molecular aggregate contains between 0.006 to 1.000 water molecules per titanyloxyphthalocyanine molecule. The titanyloxyphthalocyanine molecular aggregate exhibits an X-ray diffraction spectrum, measured using CuK.alpha. radiation, having clear peaks at angles of 7.2.degree., 9.6.degree., 11.6.degree., 13.4.degree., 14.9.degree., 18.3.degree., 23.6.degree., 24.1.degree. and 27.3.degree., the peak at 9.6.degree. being the highest, the spectrum lacking a peak at 26.3.degree., and the angles being 2 .theta..+-.0.2.degree., where .theta. is a diffraction angle. A function-separation-type electrophotographic photoconductor includes the titanyloxyphthalocyanine molecular aggregate of the present invention in the charge generation layer. A monolayer-type electrophotographic photoconductor includes the titanyloxyphthalocyanine molecular aggregate of the present invention in the photoconductive layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.