Tertiary-alkylamine salts of azine dyestuffs
US4322529A · kind A · utility
6Cited by
4References
2Claims
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Assignee
Inventor
Key dates
| Filing date | Nov 16, 1977 |
| Grant date | Mar 30, 1982 |
| Priority date | — |
| Expiry date | Nov 16, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B69/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
New dyestuff salts of the formula ##STR1## wherein A denotes the radical of an azine dyestuff, R, R.sub.1 and R.sub.2 denote alkyl radicals with a total of 10-24 carbon atoms and n denotes the number 1-4. The dyestuff salts show excellent solubility in organic solvents such as alcohols, ketones and esters. Due to the excellent solubility in organic solvents, the dyestuff of the instant invention are especially suitable for dyeing solutions of polymers such as polystyrene or polyamides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.