Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Patent
1996-02-07
1999-01-05
Popovics, Robert J.
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
210651, 210679, 210691, 210503, 210504, 210505, 210508, 21050037, 21050036, 210490, 2105021, B01D 6100, B01D 3902
Patent
active
058557881
ABSTRACT:
A chemically charged-modified filter for removing charged, micron to sub-micron sized particles from an aqueous liquid, the filter being composed of a filter sheet having a plurality of individual exposed surfaces, at least a portion of which having a surface energy of less than about 45 dynes per centimeter; amphiphilic macromolecules adsorbed onto at least some individual exposed surfaces having a surface energy of less than about 45 dynes per centimeter; and chemical charge modifiers incorporated onto at least a portion of the amphiphilic macromolecules; so that when said charge-modified substrate is in contact with the aqueous liquid containing the charged, micron to sub-micron sized particles, said particles are adsorbed onto the chemically charge-modified filter. Also disclosed is a method of removing charged, micron to sub-micron sized particles from an aqueous liquid in which an aqueous liquid containing charged, micron to sub-micron sized particles is passed through a chemically charge-modified filter.
REFERENCES:
patent: 2262770 (1941-11-01), La Piana
patent: 2262771 (1941-11-01), La Piana
patent: 2310795 (1943-02-01), La Piana et al.
patent: 2453752 (1948-11-01), La Piana et al.
patent: 2979422 (1961-04-01), Bersin et al.
patent: 3104154 (1963-09-01), Morimoto et al.
patent: 3188233 (1965-06-01), Powers et al.
patent: 3202748 (1965-08-01), Morio Naka et al.
patent: 3494775 (1970-02-01), Coscia et al.
patent: 3690925 (1972-09-01), Morris
patent: 4309247 (1982-01-01), Hou et al.
patent: 4523995 (1985-06-01), Pall et al.
patent: 4761161 (1988-08-01), Potschke
patent: 4859340 (1989-08-01), Hou et al.
patent: 4981591 (1991-01-01), Ostreicher
patent: 5055316 (1991-10-01), Hoffman et al.
patent: 5085784 (1992-02-01), Ostreicher
patent: 5151321 (1992-09-01), Reeves et al.
patent: 5208075 (1993-05-01), Kroner et al.
patent: 5229172 (1993-07-01), Cahalan et al.
patent: 5260396 (1993-11-01), Kroner et al.
patent: 5342646 (1994-08-01), Kleese et al.
Abstract JP 04 166 221 (NOK Corp.) Derwent Publications Ltd., London, GB, 12 Jun., 1992.
PCT Counterpart International Search Report mailed Jun. 16, 1997.
Abstract JP, A, 04 136 268, Derwent Publications Ltd., London, GB 11 May 1992.
Textile Research Journal, "Effect of Quaternized Amphiphilic Peptides on Pilling and Electrostatic Discharge of Wool Fabrics", vol. 64, No. 11, 1 Nov. 1994, pp. 648-652.
Theodore H. Meltzer, Filtration in the Pharmaceutical Industry, Marcel Dekker, Inc., New York, 1987, pp. 310-314.
Zaverio M. Ruggeri, Mechanisms of Shear-induced Platelet Adhesion and Aggregation, Thrombosis and Haemostatis-Journal of the International Society of Thrombosis and Haemostasis, Jul. 1, 1993, Schattauer Stuttgart, New York, 1993, pp. 119-123.
Everhart Dennis Stein
Gadsby Elizabeth Deibler
Kaylor Rosann Marie
Kiick-Fischer Kristi Lynn
Kimberly--Clark Worldwide, Inc.
Popovics Robert J.
Ruland James E.
LandOfFree
Chemically charged-modified filter for removing particles from a does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Chemically charged-modified filter for removing particles from a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chemically charged-modified filter for removing particles from a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-858997