Benzodifuran dyestuffs
US4115404A · kind A · utility
24Cited by
0References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1977 |
| Grant date | Sep 19, 1978 |
| Priority date | — |
| Expiry date | Mar 1, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/927
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Substituted 2,6-dioxo-2,6-dihydrobenzo[1:2-b, 4:5-b.sup.1 ]difurans or -dipyrroles and processes for their manufacture. The compounds are dyestuffs which are particularly useful in the form of aqueous dispersions for application to polyester textile materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.