Benzofuran-2-one
US6872839B1 · kind B1 · utility
2Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2000 |
| Grant date | Mar 29, 2005 |
| Priority date | — |
| Expiry date | Mar 3, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/1535
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Benzofuran-2-ones, compositions comprising benzofuranones, processes for preparing them, and their use as colorants for high or low molecular mass organic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.