Gary J Gibson

US Patent:

7264728, Sep 4, 2007

Filed:

Apr 23, 2004

Appl. No.:

10/830935

Inventors:

Gary L. Gibson - Midland MI, US
Keith Hayes - Bay City MI, US
Meng H. Heng - Belmont CA, US
Csilla Kollar - Midland MI, US
Thomas H. Lane - Midland MI, US
Anthony Revis - Freeland MI, US
Landon M. Steele - Redwood City CA, US

Assignee:

Dow Corning Corporation - Midland MI
Genencor International, Inc. - Palo Alto CA

International Classification:

B01D 37/00

US Classification:

210638, 210656, 210767, 436177

Abstract:

The present invention provides methods for separating one or more components of interest from a sample containing particulates and soluble materials. The method comprises the steps of: (a) filtering a sample through silica filter media whose surface silanol groups have reacted with one or more silanes, and (b) simultaneously capturing particulates and binding a soluble component to the silica filter media. The bound soluble component of interest is subsequently eluted from the silica filter media. In one embodiment of the invention, unwanted soluble materials are captured by the treated silica filter media and desired component of interest is recovered from the flow-through. In another embodiment of the invention, different components of interest are recovered from both the eluate and the flow-through. Preferred treated silica filter media are silane-treated rice hull ash or diatomaceous earth with functional quaternary ammonium group or functional sulphonate group. Particulates suitable for the present invention, for example, are microorganisms.

US Patent:

7374684, May 20, 2008

Filed:

Jul 25, 2007

Appl. No.:

11/828275

Inventors:

Gary L. Gibson - Midland MI, US
Keith Hayes - Bay City MI, US
Meng H. Heng - Belmont CA, US
Csilla Kollar - Midland MI, US
Thomas H. Lane - Midland MI, US
Anthony Revis - Freeland MI, US
Landon M. Steele - Redwood City CA, US

Assignee:

Dow Corning Corporation - Midland MI
Genencor International, Inc. - Palo Alto CA

International Classification:

B01D 37/00

US Classification:

210638, 210656, 210679, 210767, 436177

Abstract:

The present invention provides methods for separating one or more components of interest from a sample containing particulates and soluble materials. The method comprises the steps of: (a) filtering a sample through silica filter media whose surface silanol groups have reacted with one or more silanes, and (b) simultaneously capturing particulates and binding a soluble component to the silica filter media. The bound soluble component of interest is subsequently eluted from the silica filter media. In one embodiment of the invention, unwanted soluble materials are captured by the treated silica filter media and desired component of interest is recovered from the flow-through. In another embodiment, different components of interest are recovered from both the eluate and the flow-through. Preferred treated silica filter media are silane-treated rice hull ash or diatomaceous earth with functional quarternary ammonium group or functional sulphonate group. Particulates suitable for the present invention, for example, are microorganisms.

US Patent:

7850012, Dec 14, 2010

Filed:

Apr 11, 2008

Appl. No.:

12/101743

Inventors:

Gary L. Gibson - Midland MI, US
Keith Hayes - Midland MI, US
Meng H. Heng - Belmont CA, US
Csilla Kollar - Midland MI, US
Thomas H. Lane - Midland MI, US
Anthony Revis - Freeland MI, US
Landon M. Steele - Redwood City CA, US

Assignee:

Dow Corning Corporation - Midland MI
Danisco US Inc. - Palo Alto CA

International Classification:

B01D 39/00

US Classification:

2105021, 252184, 423335, 502401, 502407, 210506

Abstract:

The present invention provides methods for separating one or more components of interest from a sample containing particulates and soluble materials. The method comprises the steps of: (a) filtering a sample through silica filter media whose surface silanol groups have reacted with one or more silanes, and (b) simultaneously capturing particulates and binding a soluble component to the silica filter media. The bound soluble component of interest is subsequently eluted from the silica filter media. In one embodiment of the invention, unwanted soluble materials are captured by the treated silica filter media and desired component of interest is recovered from the flow-through. In another embodiment, different components of interest are recovered from both the eluate and the flow-through. Preferred treated silica filter media are silane-treated rice hull ash or diatomaceous earth with functional quarternary ammonium group or functional sulphonate group. The present invention also provides silane-treated silica filter media.

US Patent:

7989010, Aug 2, 2011

Filed:

Dec 1, 2005

Appl. No.:

11/720739

Inventors:

Gary L. Gibson - Midland MI, US
Margo Lynn McIvor - Sanford MI, US
Anthony Revis - Freeland MI, US

Assignee:

Dow Corning Corporation - Midland MI

International Classification:

A23L 2/00

US Classification:

426271, 4263301, 426423, 426424

Abstract:

The present invention provides a method for preventing or reducing off-flavor in a beverage. Silane-treated silica filter media are synthesized. By contacting the beverage with the silane-treated silica filter, one or more off-flavor substances or off-flavor precursors bind to the silane-treated silica filter media and are removed. Beverages that tend to develop off-flavor upon storage such as alcoholic, fruit, and vegetable beverages, are suitable for the present invention. The present invention provides a method that can reduce the level of off-flavor substances such as trans-2-nonenal, diacetyl, and cis-3-nonenal. The present invention also provides a method that can reduce the level of off-flavor precursors such as linoleic acid. The silica filter media useful for the present method include rice hull ash, oat hull ash, or diatomaceous earth.

US Patent:

20040211724, Oct 28, 2004

Filed:

Oct 1, 2003

Appl. No.:

10/677404

Inventors:

Gary Gibson - Midland MI, US
Keith Hayes - Midland MI, US
Meng Heng - Belmont CA, US
Csilla Kollar - Midland MI, US
Thomas Lane - Midland MI, US
Anthony Revis - Freeland MI, US
Landon Steele - Redwood City CA, US

International Classification:

B01D015/08

US Classification:

210/638000, 210/656000, 210/650000, 436/178000

Abstract:

The present invention provides methods for separating one or more components of interest from a sample containing particulates and soluble materials. The method comprises the steps of: (a) filtering a sample through silica filter media whose surface silanol groups have reacted with one or more silanes, and (b) simultaneously capturing particulates and binding a soluble component to the silica filter media. The bound soluble component of interest is subsequently eluted from the silica filter media. In one embodiment of the invention, unwanted soluble materials are captured by the treated silica filter media and desired component of interest is recovered from the flow-through. In another embodiment of the invention, different components of interest are recovered from both the eluate and the flow-through. Preferred treated silica filter media are silane-treated rice hull ash or diatomaceous earth with functional quarternary ammonium group or functional sulphonate group. Particulates suitable for the present invention, for example, are microorganisms.

US Patent:

20090030222, Jan 29, 2009

Filed:

Dec 28, 2006

Appl. No.:

12/160476

Inventors:

Gary Lee Gibson - Midland MI, US
Keith Quentin Hayes - Florence KY, US
Csilla Kollar - Midland MI, US
Anthong Revis - Freeland MI, US
Raymond Lee Tabler - Midland MI, US

International Classification:

C07F 7/08
B01J 8/08

US Classification:

556478, 422215

Abstract:

Systems and methods of functionalizing particulates are provided. A method of functionalizing particulates includes providing particulates to a reactor, fluidizing the particulates in substantial absence of solvents, providing a silane containing material to the fluidized particulates, and reacting the silane containing material with the fluidized particulates to provide silane-functionalized particulates. The silane-functionalized particulates may be utilized in separation media and other industrial applications.