| 摘要 |
<p>Process for direct alpha to X phase conversion of metal containing phthalocyanines. In this process, the alpha polymorph of a metal containing phthalocyanine pigment can be directly converted to the X form by depositing the alpha form of the pigment on a suitable substrate followed by in situ conversion of this deposit by controlled heating. The X form of metal containing phthalocyanines are known to possess good electrophotographic speed, and, thus, can be used either alone or in combination with other photoconductive materials in electrophotography.</p> |
