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:
Dec. 16, 2014
Filed:
Feb. 18, 2010
Yoshihiro Matsumoto, Minamata, JP;
Yasuto Umeda, Minamata, JP;
Shigeyuki Aoyama, Minamata, JP;
Masami Todokoro, Yokohama, JP;
Yoshihiro Matsumoto, Minamata, JP;
Yasuto Umeda, Minamata, JP;
Shigeyuki Aoyama, Minamata, JP;
Masami Todokoro, Yokohama, JP;
JNC Corporation, Tokyo, JP;
Abstract
The present invention provides a chromatography packing material having improved flow rate characteristics and adsorption characteristics. In particular, the present invention provides a chromatography packing material suitable for separation and purification of immunoglobulin in the manufacture of antibody preparations. A porous cellulose gel, which is made by adding polysaccharides having a limiting viscosity of 0.21 to 0.90 dL/g to porous cellulose particles, the dry weight per unit volume of the porous cellulose gel being 1.06 to 1.40 times the dry weight per unit volume of the porous cellulose particles, is used. By adding a predetermined amount of polysaccharides having a predetermined limiting viscosity to porous cellulose particles, flow rate characteristics and adsorption characteristics can be improved.