Patent ID: 9394337
Filing Date: 2016-07-19
CPC Classification: A61K,B01D,C07K

Claim Text:
1. A method for producing an antibody of the IgG class in monomeric form comprising the following steps: applying a first solution that optionally comprises poly(ethylene glycol) and sorbitol to a cation exchange chromatographic material, thereby equilibrating the material; applying a solution comprising an antibody of the IgG class to the equilibrated cation exchange chromatography material, thereby loading the chromatography material; applying a solution comprising poly (ethylene glycol) having a concentration of about 10% by weight and sorbitol having a concentration of from 5% to 20% by weight to the cation exchange chromatographic material, thereby separating the antibody of the IgG class in monomeric form from the antibody in aggregate form and obtaining the antibody in monomeric form.