Benny Dean Freeman

US Patent:

8017050, Sep 13, 2011

Filed:

Jul 9, 2009

Appl. No.:

12/500514

Inventors:

Benny D. Freeman - Austin TX, US
Ho Bum Park - Austin TX, US
Bryan D. McCloskey - Austin TX, US

Assignee:

Board of Regents The University of Texas System - Austin TX

International Classification:

B01D 67/00
B01D 39/00
B01D 29/00
B01D 63/00

US Classification:

264 48, 210490, 21050027, 21050037, 21050036, 21050041, 2102572

Abstract:

The present invention includes methods and compositions for liquid separation and water purification. The present invention includes a purification membrane having a polymer matrix purification membrane that has been treated with dopamine to form a polydopamine coated membrane with a high water flux and a high hydrophilicity.

US Patent:

8028842, Oct 4, 2011

Filed:

Jan 18, 2007

Appl. No.:

11/655319

Inventors:

James E. McGrath - Blacksburg VA, US
Ho Bum Park - Austin TX, US
Benny D. Freeman - Austin TX, US

Assignee:

Virginia Tech Intellectual Properties, Inc. - Blacksburg VA

International Classification:

B01D 39/14
B01D 39/00
B29C 65/00

US Classification:

21050041, 21050027, 210490, 264 41, 429209

Abstract:

The present invention provides a membrane, kit, and method of making a hydrophilic-hydrophobic random copolymer membrane. The hydrophilic-hydrophobic random copolymer membrane includes a hydrophilic-hydrophobic random copolymer. The hydrophilic-hydrophobic random copolymer includes one or more hydrophilic monomers having a sulfonated polyarylsulfone monomer and a second monomer and one or more hydrophobic monomers having a non-sulfonated third monomer and a fourth monomer. The sulfonated polyarylsulfone monomer introduces a sulfonate into the hydrophilic-hydrophobic random copolymer prior to polymerization.

US Patent:

8163814, Apr 24, 2012

Filed:

Feb 11, 2011

Appl. No.:

13/025602

Inventors:

Todd Shannon Emrick - South Deerfield MA, US
Kurt Breitenkamp - San Diego CA, US
Ravindra Revanur - Amherst MA, US
Benny D. Freeman - Austin TX, US
Bryan McCloskey - Austin TX, US

Assignee:

The University of Massachusetts - Boston MA
Board of Regents, The University of Texas System - Austin TX

International Classification:

C08F 12/30
C07C 247/10

US Classification:

522152, 526305, 526310, 526312, 526288, 21050036, 552 8

Abstract:

Azidoaryl-substituted cyclooctene monomers and synthesized and used in the preparation of various copolymers. Among these copolymers are those prepared from ring-opening metathesis polymerization of cyclooctene, polyethylene glycol-substituted cyclooctene, and azidoaryl-substituted cyclooctene. These copolymers are useful in the formation of crosslinked films that reduce fouling of water purification membranes.

US Patent:

20070137477, Jun 21, 2007

Filed:

Apr 20, 2006

Appl. No.:

11/409457

Inventors:

Benny Freeman - Austin TX, US
Scott Matteucci - Austin TX, US
Haiqing Lin - Menlo Park CA, US

Assignee:

Board of Regents, The University Of Texas System - Austin TX

International Classification:

B01D 53/22

US Classification:

095045000

Abstract:

The present invention includes a method, composition and apparatus for forming a nanoparticle filled polymer having similar gas selectivity and greater gas permeability than the native polymer. The nanoparticle filled polymer includes one or more polymeric materials and one or more nanoparticles dispersed within the one or more polymeric materials that increasing the permeability of the nanoparticle filled polymers relative to the permeability of the native polymer membrane.

US Patent:

20080142454, Jun 19, 2008

Filed:

Sep 7, 2007

Appl. No.:

11/899869

Inventors:

Todd Shannon Emrick - South Deerfield MA, US
Kurt Breitenkamp - Northampton MA, US
Ravindra Revanur - Amherst MA, US
Benny D. Freeman - Austin TX, US
Bryan McCloskey - Austin TX, US

International Classification:

C08F 32/04
C07C 247/16
B01D 39/16
B01D 37/00

US Classification:

210767, 552 8, 526277, 526288, 526309, 21050036

Abstract:

Azidoaryl-substituted cyclooctene monomers and synthesized and used in the preparation of various copolymers. Among these copolymers are those prepared from ring-opening metathesis polymerization of cyclooctene, polyethylene glycol-substituted cyclooctene, and azidoaryl-substituted cyclooctene. These copolymers are useful in the formation of crosslinked films that reduce fouling of water purification membranes.

US Patent:

20100059433, Mar 11, 2010

Filed:

Jul 9, 2009

Appl. No.:

12/500364

Inventors:

Benny D. Freeman - Austin TX, US
Ho Bum Park - Austin TX, US
Bryan D. McCloskey - Austin TX, US
Daniel J. Miller - Austin TX, US

Assignee:

Board of Regents, The University of Texas System - Austin TX

International Classification:

B01D 65/08
B05D 5/00
B01D 63/00
B32B 9/04
B32B 27/00
B32B 15/04

US Classification:

2103216, 427244, 21050033, 427 231, 428704, 428500, 428457

Abstract:

The present invention describes methods and compositions for the reduction, prevention and elimination of biofilm formation on a surface. The present invention provides a method of depositing a coating material to reduce or prevent biofilm formation on a surface by adding a dopamine coating material to a liquid solvent to form a solution mixture, adjusting a pH of the solution mixture to 8, 9, or 10 and dissolving the dopamine coating material in the liquid solvent. The solution mixture is then placed into contact with one or more surfaces to form a dopamine coating on the surface to reduce biofilm formation.

US Patent:

20100096327, Apr 22, 2010

Filed:

Sep 21, 2009

Appl. No.:

12/563717

Inventors:

Douglas L. GIN - Longmont CO, US
Evan S. HATAKEYAMA - Boulder CO, US
Christopher J. GABRIEL - Boulder CO, US
Benny Dean FREEMAN - Austin TX, US
Hao JU - Austin TX, US

International Classification:

B01D 61/14
B05D 3/02
B01D 69/12

US Classification:

210637, 4273855, 210490

Abstract:

The invention provides membranes useful for filtration of water and other liquids. The membrane may be a composite membrane having a polymer layer incorporating quaternary phosphonium or ammonium groups. The polymer layer may be resistant to protein adsorption in an aqueous environment. The membrane may also be a surface-modified membrane in which a polymer having quaternary phosphonium or ammonium groups is covalently attached to the membrane surface. Methods for making and using the membranes of the invention are also provided.

US Patent:

20120048805, Mar 1, 2012

Filed:

Jul 18, 2011

Appl. No.:

13/184987

Inventors:

Jeffrey McCutcheon - Coventry CT, US
Jason Arena - New Britain CT, US
Benny Freeman - Austin TX, US
Bryan McCloskey - Campbell CA, US

Assignee:

University of Texas at Austin - Austin TX
UNIVERSITY OF CONNECTICUT - Farmington CT

International Classification:

B01D 71/28
B01D 61/02
B01D 67/00
B01D 61/00

US Classification:

210654, 210483, 427244

Abstract:

The disclosure provides a method of modifying thin film composite membrane support structures. In particular, the disclosure provides method of modifying thin film composite membrane support structures with poly(dopamine) for use with engineered osmosis applications.