Benzoisothiazole azo dyes
US5691458A · kind A · utility
8Cited by
21References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1996 |
| Grant date | Nov 25, 1997 |
| Priority date | — |
| Expiry date | Sep 18, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B29/0081
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
There are described compounds which are represented by the formula ##STR1## The compounds are useful as dyes, and as intermediates and dye moieties in the preparation of compounds, which are particularly useful in imaging applications, such as, for example, diffusion transfer photographic systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.