Process for preparing 4-aminodiphenylamine intermediates
US7183439B2 · kind B2 · utility
3Cited by
8References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 2003 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Aug 20, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C209/36
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention is directed to a method of producing one or more 4-aminodiphenylamine intermediates comprising the steps:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.