Bis(.beta.-hydroxyethylthio)-C.sub.1 -C.sub.4 -alkylamines
US5081296A · kind A · utility
3Cited by
3References
5Claims
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Assignee
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Key dates
| Filing date | Apr 17, 1990 |
| Grant date | Jan 14, 1992 |
| Priority date | — |
| Expiry date | Apr 17, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B62/503
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This application relates to intermediates useful for the preparation of fiber-reactive dyes, said intermediates having the formulae ##STR1## in which B is a --(CH.sub.2).sub.n -- or --O--(CH.sub.2).sub.n -- radical, where n is 1 to 6; Q is selected from the group consisting of hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, carboxyl and sulfo; and A is an amino substituent of the formula ##STR2## and Z and Z', independently of one another, are .beta.-sulfatoethyl, .beta.-thiosulfatoethyl, .beta.-phosphatoethyl, .beta.-acyloxyethyl, .beta.-haloethyl or vinyl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.