Method of applying chemical charge modifiers to a substrate and

Details Method of applying chemical charge modifiers to a substrate and Method of applying chemical charge modifiers to a substrate and

1995-10-26

1999-01-12

Watkins, William

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428339, 4284744, 428480, 428522, 428523, 427337, 427180, 427256, 427384, 427414, 4274301, 427542, 427557, 427560, 427545, 427600, 427338, B32B 324, B32B 902

Patent

active

058585036

ABSTRACT:
A method of applying chemical charge-modifiers to a permeable sheet including the steps of: providing a permeable sheet having a plurality of individual exposed surfaces, at least a portion of which having relatively low surface energies; providing an aqueous solution containing amphiphilic macromolecules, the solution having a relatively high surface tension; contacting the solution containing amphiphilic macromolecules under shear stress conditions with the permeable sheet so that at least a portion of the amphiphilic macromolecules are adsorbed onto at least some individual exposed surfaces to form a coated permeable sheet; and contacting the coated permeable sheet with a solution containing chemical charge modifiers to incorporate chemical charge modifiers onto at least a portion of the amphiphilic macromolecules. A chemically charge-modified permeable sheet composed of: a permeable 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; and chemical charge modifiers incorporated onto at least a portion of the amphiphilic macromolecules.

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), MorioNake et al.
patent: 3494775 (1970-02-01), Coscia et al.
patent: 3690925 (1972-09-01), Morris
patent: 4761161 (1988-08-01), Potschke
patent: 5004543 (1991-04-01), Pluskal et al.
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: 5330537 (1994-07-01), Stewart et al.
patent: 5462867 (1995-10-01), Azad et al.
patent: 5494744 (1996-02-01), Everhart et al.
Theodore H. Meltzer, "Filtration in the Pharmaceutical Industry", Marcel Dekker, Inc., New York, N.Y. 1987, pp. 310-314.
Zaverio M. Ruggeri, "Mechanisms of Shear-Induced Plavelet Adhesion and Aggregation," Thrombosis and Haemostasis--Journal of the International Society on Thrombosis and Haemostasis, Jul. 1, 1993, Schattaver Stuttgart, New York, N.Y, 1993, pp. 119-123.
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.

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