Patent · US Expired

Chiral adsorbents and preparation thereof as well as compounds on which the absorbents are based and preparation of the compounds

US6333426A · kind A · utility

2Cited by

6References

4Claims

0Family size

Assignee

Eka Nobel AB · SE

Inventors

Per Moller · Kungsbacka, SE
Domingo Sanchez · Floda, SE
Stig Allenmark · Lindome, SE
Shalini Andersson · Linköping, SE

Key dates

Filing date	Sep 28, 1999
Grant date	Dec 25, 2001
Priority date	—
Expiry date	Sep 28, 2019

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C271/30
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Opticallly active adsorbents based on network polymerized derivative of dicarboxylic acids, diamines or diols which are chemically bonded to a carrier. The derivatives can be polymerized by radical polymerization or through hydrosilylation in the presence of a solid carrier. The optically active adsorbents are usable for chromatographic separation of racemic mixtures of enantiomers.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.