Process for producing packing for resolving optical isomers

Details Process for producing packing for resolving optical isomers Process for producing packing for resolving optical isomers

2007-08-21

2007-08-21

Therkorn, Ernest G. (Department: 1723)

Liquid purification or separation

Processes

Chromatography

C210S635000, C210S198200, C210S502100, C366S287000, C366S297000

Reexamination Certificate

active

10529698

ABSTRACT:
The present invention provides a production method with which a porous carrier can be allowed to evenly carry a polysaccharide derivative. That is, the present invention provides a method of producing an enantiomeric isomer-separating filler, including bringing a porous carrier and a solution of a polysaccharide derivative into contact with each other through a stirring operation in a stirring device, to allow the porous carrier to carry an optically active polymer compound, in which: a two-axis vertical stirring device is used as the stirring device; and the porous carrier is allowed to carry the polysaccharide derivative in a carrying amount of 23 mass % or more.

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Useful Chiral Packing Materials for High-Performance Liquid Chromatographic Resolution of Enantiomers: Phenylcarbamates of Polysaccharides Coated on Silica Gel, by Yoshio Okamoto et al, J. Am. Chem. Soc., vol. 106, No. 18, 1984, pp. 5357-5359.
European Patent Office Search Report dated Sep. 6, 2005 (3 pages).

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