Process for the manufacture of halogen-containing anthraquinoidal compounds, their use and new halogen-containing anthraquinoidal compounds
US3975410A · kind A · utility
3Cited by
10References
2Claims
0Family size
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Key dates
| Filing date | Sep 27, 1974 |
| Grant date | Aug 17, 1976 |
| Priority date | — |
| Expiry date | Sep 27, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/933
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Process for the manufacture of halogen-containing anthraquinoidal compounds being useful for bulk dyeing high molecular organic compounds and having the formula ##SPC1## Wherein A is an anthraquinoidal radical being free from nitro groups, X is --NH-- or --S--, n is a number of 1 to 4. R.sub.1 to R.sub.5 is hydrogen, halogen, alkyl, alkoxy, aryloxy, aroyl or arylsulphonyl, and Hal is halogen, by halogenating compounds of the formula ##SPC2##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.