John Charkoudian - Carlisle MA Anthony E. Allegrezza - Milford MA
Assignee:
Millipore Corporation - Bedford MA
International Classification:
B01D 2900
US Classification:
21050041
Abstract:
A porous membrane, such as a microporous or ultrafiltration membrane, is formed from a solution of a polysulfone and a free radical polymerizable monomer exposed to ultraviolet light to form a blend of the polysulfone and copolymers of polysulfone activation products and polymerized monomer having polymer segments covalently bonded to each other. The solution is separated into two phases including a porous solid phase comprising the membrane.
Membrane, Process And System For Isolating Virus From Solution
Anthony J. DiLeo - Westford MA Anthony E. Allegrezza - Milford MA Edmund T. Burke - Winchester MA
Assignee:
Millipore Corporation - Bedford MA
International Classification:
B01D 6114 B01D 6700
US Classification:
264 451
Abstract:
A composite membrane and process utilizing the membrane which is capable of selectively removing particles such as viral particles from a solution such as a protein solution is provided. The membrane comprises a porous membrane substrate, a surface skin having ultrafiltration separation properties and an intermediate porous zone between the substrate and the skin which intermediate zone has an average pore size smaller than that of the substrate. The intermediate zone is free of voids which break the skin and which directly fluid communicate with the substrate. The composite is capable of a log reduction value of at least 3 (99. 9% removal) of particles selectively from solution.
Porous Membrane Formed From Interpenetrating Polymer Network Having Hydrophilic Surface
Anthony E. Allegrezza - Milford MA Ellen C. Bellantoni - Framingham MA
Assignee:
Millipore Corporation - Bedford MA
International Classification:
C08L 3308 C08L 3310 C08J 928
US Classification:
521134
Abstract:
A porous membrane is formed from an interpenetrating polymer network of a hydrophobic polymer and a polymerized and crosslinked hydrophilic monomeric composition. A solution of the polymer and monomeric composition is cast, exposed to ultraviolet radiation, coagulated and dried. The resulting dried membrane is annealed in order to render its surface hydrophilic.
Anthony E. Allegrezza - Milford MA Edmund T. Burke - Winchester MA
Assignee:
Millipore Corporation - Bedford MA
International Classification:
B01D 1300
US Classification:
210490
Abstract:
Composite ultrafiltration membranes are disclosed which are produced by forming an ultrafiltration membrane structure on a preformed microporous membrane.
Membrane, Process And System For Isolating Virus From Solution
Anthony J. DiLeo - Westford MA Anthony E. Allegrezza - Milford MA Edmund T. Burke - Winchester MA
Assignee:
Millipore Corporation - Bedford MA
International Classification:
B01D 1614
US Classification:
210645
Abstract:
A composite membrane and process utilizing the membrane which is capable of selectively removing particles such as viral particles from a solution such as a protein solution is provided. The membrane comprises a porous membrane substrate, a surface skin having ultrafiltration separation properties and an intermediate porous zone between the substrate and the skin which intermediate zone has an average pore size smaller than that of the substrate. The intermediate zone is free of voids which break the skin and which directly fluid communicate with the substrate. The composite is capable of a log reduction value of at least 3 (99. 9% removal) of particles selectively from solution.
Porous Membrane Formed From Interpenetrating Polymer Network Having Hydrophilic Surface
Anthony E. Allegrezza - Milford MA Ellen C. Bellantoni - Framingham MA
Assignee:
Millipore Corporation - Bedford MA
International Classification:
B29C 3508 C08J 328 B01D 3914
US Classification:
264 22
Abstract:
A porous membrane is formed from an interpenetrating polymer network of a hydrophobic polymer and a polymerized and crosslinked hydrophilic monomeric composition. A solution of the polymer and monomeric composition is cast, exposed to ultraviolet radiation, coagulated and dried. The resulting dried membrane is annealed in order to render its surface hydrophilic.
Name / Title
Company / Classification
Phones & Addresses
Anthony Allegrezza Principal
Congress Street Consulting LLC Business Consulting Services
254 Congress St, Milford, MA 01757
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