Nonylated diphenylamines
US6315925A · kind A · utility
21Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2000 |
| Grant date | Nov 13, 2001 |
| Priority date | — |
| Expiry date | Feb 14, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C211/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a mixture of nonylated diphenylamines, especially dinonylated diphenylamines, and to a technically advantageous methodological process for the preparation of that mixture by using acid catalysts in small quantities. The mixture is used as an additive for stabilizing organic products that are subjected to oxidative, thermal and/or light-induced degradation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.