Separating agent
USRE38435E1 · kind E1 · reissue
3Cited by
34References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1997 |
| Grant date | Feb 24, 2004 |
| Priority date | — |
| Expiry date | Sep 22, 2017 |
Classification
- Technology area (CPC —)General
Abstract
A mixture of chemical substances such as optical isomers, geometrical isomers and polymers having different molecular weight ranges is separated to each ingredient by use of a cellulose derivative having an aromatic ring in the chromatographic method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.