Polycyclic compounds
US4084053A · kind A · utility
51Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1975 |
| Grant date | Apr 11, 1978 |
| Priority date | — |
| Expiry date | Jun 16, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B57/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Polycyclic compounds of the general formula I ##STR1## in which the nucleus A can be further substituted, Y is a hydrogen atom or an optionally substituted hydrocarbon radical, and R.sub.1 and R.sub.2 each denote hydrogen, aryl, aralkyl, cycloalkyl or an aliphatic radical, and R.sub.1 and R.sub.2 can form a ring containing the amine nitrogen and mixtures thereof with one another. The dyestuffs dye natural and synthetic fibres in fast yellow and orange shades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.