Disazo pyrazolyl dyed polyester fibers
US4083688A · kind A · utility
2Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 29, 1973 |
| Grant date | Apr 11, 1978 |
| Priority date | — |
| Expiry date | Oct 29, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B62/01
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Polyester fibers dyed with a disazo dyestuff consisting of two N-phenyl-pyrazole monoazo dyestuff moieties bound to each other via the phenyl groups, said phenyl groups attached to each other by an --O--, --S--, --NH--, cyclohexylidene, C.sub.1 -C.sub.2 -alkylene or --O-(C.sub.1 -C.sub.2 -alkylene)-O- divalent radical.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.