Coloration process
US4134723A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 1977 |
| Grant date | Jan 16, 1979 |
| Priority date | — |
| Expiry date | Nov 1, 1997 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P5/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for the coloration of aromatic polyester textile materials which comprises applying to the said textile materials by an aqueous dyeing, padding or printing process a disperse monoazo dyestuff, free from carboxylic acid and sulphonic acid groups, which, in one of the possible tautomeric forms, is represented by the formula: ##STR1## wherein A is phenyl or phenyl which contains at least one substituent selected from chlorine, bromine, nitro, cyano, trifluoromethyl, thiocyano, lower alkyl, lower alkoxy, lower alkylcarbonyl, lower alkylsulphonyl, lower alkylcarbonylamino, carbamoyl and N-lower alkyl and N:N-di lower alkyl derivatives thereof, sulphamoyl and N-lower alkyl and N:N-di lower alkyl derivatives thereof, sulphamato and N-lower alkyl and N:N-di lower alkyl derivatives thereof, lower alkoxycarbonyl, lower alkoxy lower alkoxycarbonyl, lower alkoxy lower alkoxy lower alkoxycarbonyl, hydroxy lower alkoxycarbonyl, hydroxy lower alkoxy lower alkoxycarbonyl, and lower alkoxycarbonyl lower alkyl. X is hydrogen, lower alkyl, carbamoyl, cyano, chlorine, bromine, nitroso, nitro, lower alkylcarbonyl, sulphamoyl, lower alkylsulphonyl, lower alkylcarbonylamino or lower alkoxycarbo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.