Separating agent
US4818394A · kind A · utility
33Cited by
22References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1988 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Jan 11, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/78
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.