Process for producing phthalocyanine pigment composition containing highly halogenated different-metalo-phthalocyanine
US5282896A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1991 |
| Grant date | Feb 1, 1994 |
| Priority date | — |
| Expiry date | Aug 16, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B67/0035
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for producing a pigment composition containing a highly halogenated copper phthalocyanine, produced by halogenation of copper phthalocyanine in the presence of chlorosulfonic acid, titanium tetrachloride or a mixture of titanium tetrachloride with aluminum chloride, a highly halogenated copper phthalocyanine produced by halogenation of a copper phthalocyanine in a solid powder state, or a highly halogenated copper phthalocyanine produced by cyclization. The composition further contains at least one highly halogenated different-metalo-phthalocyanine selected from highly halogenated metalo-phthalocyanines each of which has Al, Mg, Si, Ti, V, Mn, Fe, Co, Ni, Zn, Ge or Sn as a central metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.