Finely particulate cellulose esters of aromatic or aromatic-aliphatic carboxylic acids, process for their preparation, and the use thereof
US5066793A · kind A · utility
3Cited by
3References
18Claims
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Key dates
| Filing date | Oct 13, 1988 |
| Grant date | Nov 19, 1991 |
| Priority date | — |
| Expiry date | Oct 13, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2301/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Finely particulate cellulose esters of aromatic or aromatic-aliphatic carboxylic acids in the form of substantially spherical, partially crystalline particles having an average diameter of 1 to 200 .mu.m and a specific surface area of 10 to 300 m.sup.2 /g, are suitable for use as stationary phase in methods of chromatographic separation, especially for the resolution of racemates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.