Basic dyes
US4176229A · kind A · utility
3Cited by
4References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 2, 1978 |
| Grant date | Nov 27, 1979 |
| Priority date | — |
| Expiry date | Aug 2, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B23/164
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Dyes of the general formula I ##STR1## where A.sup..crclbar. is an anion, B is methyl, ethyl, benzyl or .beta.-hydroxyethyl, n is 1 or 2, R is alkyl of 1 to 4 carbon atoms, X is hydrogen, methoxy, ethoxy or chlorine and Z is ##STR2## The dyes of the formula I give very fast dyeings on anionically modified fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.