Separating agent
USRE34457E · kind E · reissue
17Cited by
32References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 1992 |
| Grant date | Nov 30, 1993 |
| Priority date | — |
| Expiry date | Nov 24, 2012 |
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.