Fractionation and purification of aromatic polyamine mixtures and the use thereof
US5679841A · kind A · utility
4Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1996 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | Mar 28, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C209/86
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for the fractionation and purification of aromatic polyamine mixtures and the use thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.