Process for producing a metal phthalocyanine and/or its derivative
US4906747A · kind A · utility
3Cited by
1References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1988 |
| Grant date | Mar 6, 1990 |
| Priority date | — |
| Expiry date | Dec 15, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B47/067
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In a process for producing a metal phthalocyanine and/or its derivative by heating phthalic anhydride and/or its derivative, urea and a metal compound in an organic solvent in the presence of a catalyst, or by heating phthalodinitrile and a metal or a metal compound in an organic solvent, the improvement wherein the reaction for the production of the metal phthalocyanine and/or its derivative is conducted by an addition of cyanuric acid and/or its derivative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.