Low crystalline oxytitanium phthalocyanine, process for producing crystalline oxytitanium phthalocyanines using the same, oxytitanium phthalocyanine of a novel crystal form and electrophotographic photosensitive member using the same
US5194354A · kind A · utility
26Cited by
5References
29Claims
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Key dates
| Filing date | Jul 23, 1990 |
| Grant date | Mar 16, 1993 |
| Priority date | — |
| Expiry date | Jul 23, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0696
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
There are disclosed low crystalline oxytitanium phthalocyanines which have characteristic strong peaks at specific angles of Bragg angle 2.theta..+-.0.2.degree.. Using the low crystalline oxytitanium phthalocyanines, it is easy to obtain oxytitanium phthalocyanines having novel crystal forms. Electrophotographic photosensitive member containing the oxytitanium phthalocyanines having novel crystal forms have a very high photosensitivity to beams of long wavelength, a ver high potential stability as well as excellent durability in repetitive use.
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