Tertiary-alkylamine salts of metal complex dyestuffs
US3994872A · kind A · utility
14Cited by
8References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 10, 1975 |
| Grant date | Nov 30, 1976 |
| Priority date | — |
| Expiry date | Feb 10, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B69/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
New dyestuff salts of the formula ##EQU1## WHEREIN A denotes the radical of an anionic 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 dyestuffs 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.