Titanyl phthalocyanin crystal, method for preparing the same and electrophotographic photoconductor
US7855286B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2009 |
| Grant date | Dec 21, 2010 |
| Priority date | — |
| Expiry date | Oct 29, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0696
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
According to the present invention, a titanyl phthalocyanin crystal excellent in storage stability in organic solvents, a method for preparing the same and an electrophotographic photoconductor using the same are provided. In the titanyl phthalocyanin crystal, the method for preparing such a titanyl phthalocyanin crystal and the electrophotographic photoconductor using the same, the titanyl phthalocyanin crystal is characterized by having the maximum peak at a Bragg angle 2θ±0.2°=27.2° in a CuKα characteristic X-ray diffraction spectrum and one peak within the range of 270 to 400° C. other than a peak accompanied by the vaporization of adsorbed water in a differential scanning calorimetric analysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.