Process for dyeing polyesters in the melt
US4176113A · kind A · utility
8Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1977 |
| Grant date | Nov 27, 1979 |
| Priority date | — |
| Expiry date | Oct 21, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B1/585
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Use of anthraquinone derivatives of the formula ##STR1## wherein X is --NH-- or --S--, one Y is --NHCOR, R being an alkyl, aryl or heterocyclic residue, the other Y are hydrogen, Z is halogen, and n is 0, 1, 2 or 3, whereby Z may be 1 to 3 halogen bound to aryl and/or anthraquinone nucleus and/or the residue R, for dyeing polyesters in the melt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.