发明授权
US07057034B2 Titanyl phthalocyanine crystal and production method of the same, and electrophotosensitive material 有权
钛菁酞菁晶体及其制备方法相同,并具有电光敏材料

Titanyl phthalocyanine crystal and production method of the same, and electrophotosensitive material
摘要:
The present invention relates to a novel titanyl phthalocyanine crystal which can prepare a coating solution having excellent storage stability because it satisfies both of the following two characteristics (a) and (b), a method of producing the same, an electrophotosensitive material using the above crystal as an electric charge generating material. (a) The crystal has a maximum peak at a Bragg angle 2θ±0.2°=27.2° and has no peak at 7.4° in a CuKα characteristic X-ray diffraction spectrum. (b) The crystal does not have a peak of a change in temperature within a range from 50 to 400° C. except for a peak associated with evaporation of adsorbed water in differential scanning calorimetry.
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