Charged membrane

Details Charged membrane Charged membrane

2007-03-13

2007-03-13

Fortuna, Ana (Department: 1723)

Liquid purification or separation

Casing divided by membrane into sections having inlet

Each section having inlet

C210S321750, C210S321800, C210S321860, C210S321870, C210S321600, C210S483000

Reexamination Certificate

active

11042512

ABSTRACT:
The present invention provides a hydrophilic charged microporous membrane comprising a porous hydrophobic substrate and a coating comprising a charge-providing agent. The present invention further provides a hydrophilic charged membrane comprising a porous hydrophobic substrate and a hydrophilic charge-providing agent distributed within the substrate. The present invention further provides a filter as well as a filter device comprising the inventive hydrophilic charged membrane. The present invention further provides a process for treating a fluid containing bacterial contaminants such as endotoxins comprising contacting the membrane with the fluid to provide a bacterial contaminant depleted fluid.

REFERENCES:
patent: 4309247 (1982-01-01), Hou et al.
patent: 4380590 (1983-04-01), Chong
patent: 4523995 (1985-06-01), Pall et al.
patent: 4702840 (1987-10-01), Degen et al.
patent: 4882223 (1989-11-01), Aptel et al.
patent: 4915839 (1990-04-01), Marinaccio et al.
patent: 4980067 (1990-12-01), Hou et al.
patent: 5004543 (1991-04-01), Pluskal et al.
patent: 5021160 (1991-06-01), Wolpert
patent: 5032281 (1991-07-01), Nagamatsu et al.
patent: 5051114 (1991-09-01), Nemser et al.
patent: 5085780 (1992-02-01), Ostreicher
patent: 5116650 (1992-05-01), Bowser
patent: 5128041 (1992-07-01), Degen et al.
patent: 5151189 (1992-09-01), Hu et al.
patent: 5269931 (1993-12-01), Hu et al.
patent: 5277812 (1994-01-01), Hu et al.
patent: 5376298 (1994-12-01), Michael
patent: 5393430 (1995-02-01), Girot et al.
patent: 5438128 (1995-08-01), Nieuwkerk et al.
patent: 5462867 (1995-10-01), Azad et al.
patent: 5472696 (1995-12-01), Boyle et al.
patent: 5531893 (1996-07-01), Hu et al.
patent: 5543054 (1996-08-01), Charkoudian et al.
patent: 5593576 (1997-01-01), Girot et al.
patent: 5749942 (1998-05-01), Mattis et al.
patent: 6045694 (2000-04-01), Wang et al.
patent: 6045697 (2000-04-01), Girot et al.
patent: 6183640 (2001-02-01), Wang
patent: 6258272 (2001-07-01), Wang et al.
patent: 6270674 (2001-08-01), Baurmeister et al.
patent: 6673443 (2004-01-01), Koyanagi et al.
patent: 6780327 (2004-08-01), Wu et al.
patent: 6783937 (2004-08-01), Hou et al.
patent: 6790327 (2004-09-01), Ikeda et al.
patent: 6849185 (2005-02-01), Wu et al.
patent: 6851561 (2005-02-01), Wu et al.
patent: 6860393 (2005-03-01), Hou et al.
patent: 2005/0139537 (2005-06-01), Hou et al.
patent: 2005/0211621 (2005-09-01), Wu et al.
patent: 0 228 072 (1987-07-01), None
patent: 0 347 755 (1989-12-01), None
patent: WO 98/01208 (1998-01-01), None
Anspach, F. et al.,J. Chrom. B., 711, 81-92 (1995).
Ball P.R. et al.,Endotoxin Retention Capabilities of the Pall Intravenous Set Saver, BM2117 (1990).
Baumgartner, T. et al.,Amer. J. Hosp. Pharm., 43, 681-684 (1986).
Belanich, M. et al.,Pharm. Tech., 142-150 (1996).
Held, D. et al.,Pharm. Tech., 32-38 (1997).
Horibe, K. et al.,J. Par. Ent. Nutr., 14(1), 56-59 (1990).
Hou, K. et al.,Biochem. Biophys. Acta, 1073, 149-154 (1991).
Hou, K. et al.,Biotech. Appl. Biochem., 12, 315-324 (1990).
Kendall, K., et al., “Endotoxin Rentention Capabilities of Positively Charged Nylon and Positively Charged Polysulphone Membrane Intravenous Filters”, Pall Technical Report, (1994).
Petsch D. et al.,J. Chrom. B., 693, 79-91 (1997).
Richards, C. et al.,J. Clin. Pharm. Ther., 19, 199-202 (1994).
Spielberg, R. et al.,Labortory Evaluation of Endotoxin Retention By Pall 0.2μm Posidyne Membrane, 1-ER-96, (1991).

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