Title:
CHARGED FILTRATION MEMBRANES AND USES THEREFOR
Document Type and Number:
WIPO Patent Application WO2001008792
Kind Code:
A3
Abstract:
The invention relates to charged filtration membranes and their use for separation of a protein from solvent, low molecular weight solutes or a mixture of proteins. Modification of the membranes to generate charge includes modification of membrane pores to alter charge within a pore and alter the size of a pore. Consequently, the protein is separated from other solutes in a mixture based on size as well as net protein charge and membrane charge.
Inventors:
VAN REIS ROBERT D
Application Number:
PCT/US2000/019964
Publication Date:
July 26, 2001
Filing Date:
July 21, 2000
Export Citation:
Assignee:
GENENTECH INC (US)
International Classes:
B01D61/14; B01D67/00; B01D69/02; B01D71/10; B01D71/16; B01D71/22; C07K1/34; (IPC1-7): B01D67/00; B01D69/02; B01D69/12; B01D71/10
Foreign References:
| GB1504261A | 1978-03-15 | |||
| US4604204A | 1986-08-05 |
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