The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 30, 2013
Filed:
Nov. 30, 2006
Charles Little, Austin, TX (US);
Barry L. Haymore, Austin, TX (US);
Charles Little, Austin, TX (US);
Barry L. Haymore, Austin, TX (US);
Sachem, Inc., Austin, TX (US);
Abstract
A displacement chromatography process, including: loading onto a stationary phase comprising an anion-exchange material a mixture comprising one or more components to be separated; and displacing at least one of the one or more components from the stationary phase by applying to the stationary phase a mixture comprising an polyaromatic polyanionic displacer compound having a general formula Cen(Ar), in which Cen is a central bond or group, Ar is an aromatic nucleus, w=2 to the maximum number of sites one Cen, and Ar is substituted with a plurality of An, in which each Anis independently defined as sulfonate, carboxylate, phosphonate, phosphate, sulfate; and Ar is further substituted with a plurality of G, in which G is defined as independently H, C-Calkyl, halogen, nitro, hydroxy, or C-Calkoxy. In addition, a group of polyaromatic polyanionic displacer compounds useful in the process is disclosed.