Cationic dyestuffs
US3992405A · kind A · utility
4Cited by
1References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 28, 1972 |
| Grant date | Nov 16, 1976 |
| Priority date | — |
| Expiry date | Jul 28, 1992 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B57/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Cationic dyestuffs of the formula ##SPC1## Wherein R represents an alkyl, cycloalkyl, aralkyl or aryl radical or an alkylene radical bonded to the naphthalene ring in the .beta.-position, R.sub.1 represents an alkyl, cycloalkyl or aralkyl radical, R.sub.2 represents hydrogen or an alkyl, aralkyl, alkoxy, aralkoxy, hydroxyl, amino or acylamino radical and An.sup.(.sup.-) represents an anion, are suitable for dyeing and printing synthetic and natural materials, especially of polyacrylic fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.