Patent · US Active

Method for purifying cannabinoid compounds

US10647691B2 · kind B2 · utility

5Cited by

1References

20Claims

0Family size

Assignee

SYMRISE AG · DE

Inventors

Harry Erfurt · Uslar, DE
Maria L. Weber · Rödermark, DE
Hans-Jürgen Niemeyer · Blankenhagen, DE
Marcus Rudolf Götz · Bodenfelde, DE
Matthias Winkler · North Duke Street, DE

Key dates

Filing date	May 13, 2016
Grant date	May 12, 2020
Priority date	—
Expiry date	May 13, 2036

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D15/1821
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to methods for purifying one or two cannabinoid compounds using simulated moving bed chromatography, wherein the cannabinoid compound(s) is/are obtained in the extract and/or the raffinate with the total amount of isomeric impurities being below detection level. In particular, the present invention relates to methods for the purification of cannabidiol, trans-(−)-delta-9-tetrahydrocannabinol, cannabidivarin, trans-(−)-delta-9-tetrahydrocannabivarin and cannabigerol which have been obtained by enantiopure synthesis.

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