Separating agent for optical isomer and method for...

Details Separating agent for optical isomer and method for... Separating agent for optical isomer and method for...

2008-01-29

2008-01-29

Therkorn, Ernest G. (Department: 1797)

Liquid purification or separation

With means to add treating material

Chromatography

C210S502100, C210S635000, C210S656000, C502S404000

Reexamination Certificate

active

07323101

ABSTRACT:
A separating agent which combines a high optical resolving power inherent in polysaccharide derivatives with sufficient solvent resistance and a method with which the separating agent can be produced efficiently in short steps. The separating agent for enantiomeric isomers is characterized in that a polymerizable polysaccharide derivative of a polysaccharide derivative having polymerizable functional groups and a polymerizable monomer having polymerizable unsaturated groups are copolymerized with a carrier having polymerizable functional groups to be chemically bound mutually. The separating agent is preferably used for high performance liquid chromatography (HPLC) and has an excellent solvent resistance.

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Hirata, PTO Translation No. 06-3081 of Japan Patent No. 4-158260, Mar. 2006.
esp@cenet Abstract of Japan Patent No. 62-270602.
“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. 27, 2005.

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