On October 19, 2017, Kumoi, Hirofumi; Tanaka, Masato published a patent.Formula: C7H6ClF The title of the patent was Production method of phthalocyanine crystals and process for producing electrophotographic photoreceptor using the same. And the patent contained the following:
Title production method of phthalocyanine crystal includes mixing of phthalocyanine compound obtained by the acid pasting method with an organic compound and subjecting it to crystal transformation to obtain phthalocyanine crystal, which comprises a rotatable rotor and a jacket covering the rotor, at least the rotor has a flow path of a coolant or a heat medium therein and a gap between the rotor and the inner wall of the jacket has a portion forming an annular space, the rotor and the inner wall of the jacket both have a smooth surface and a crystal transformation is performed using a disperser having a structure in which a mixture of the phthalocyanine compound and the organic compound passes through the space filled with media particles. Thus, 0.3 parts of hydroxygallium phthalocyanine pigment powder (prepared by reacting chlorogallium phthalocyanine pigment with sulfuric acid), 9.7 parts of N,N-dimethylformamide were mixed in stainless steel container and then the mixed solution was subjected to dispersion treatment using glass beads as media particles and then the mixture was dispersed by using a dispersion machine to obtain hydroxygallium phthalocyanine crystals. The experimental process involved the reaction of 4-Chloro-2-fluorotoluene(cas: 452-75-5).Formula: C7H6ClF
The Article related to phthalocyanine crystal organic compound electrophotog photoreceptor, Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers: Phthalocyanines and other aspects.Formula: C7H6ClF
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics