Tetra-(alkylsulphamoyl)-copper phthalocyanines and a process for their manufacture
US3954796A · kind A · utility
3Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 10, 1974 |
| Grant date | May 4, 1976 |
| Priority date | — |
| Expiry date | Jul 10, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B47/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Tetra-(alkylsulphamoyl)-copper phthalocyanines of the formula ##EQU1## WHEREIN CuPc denotes a copper phthalocyanine radical, R.sub.1, R.sub.2 and R.sub.3 denote alkyl radicals with a total of 7 - 12 C atoms, R.sub.4, R.sub.5 and R.sub.6 denote alkyl radicals with a total of 11 - 13 C atoms and n denotes 0 - 4 have a good solubility an alcohol and are particularly suitable for dyeing alcoholic solutions of film-forming polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.