Freddie Lynn Singleton

US Patent:

6547971, Apr 15, 2003

Filed:

Mar 8, 2000

Appl. No.:

09/521222

Inventors:

Alexander W. Breen - Jacksonville FL
Phillip S. Davis - Jacksonville FL
Michael J. Mayer - Jacksonville FL
Freddie L. Singleton - Jacksonville FL

Assignee:

Hercules Incorporated - Wilmington DE

International Classification:

C02F 150

US Classification:

210764, 162161, 422 28, 424778, 424725, 514690

Abstract:

Methods of inhibiting the growth of organisms in aqueous systems such as papermaking systems, cooling systems and process waters of various types, comprises adding to the aqueous system a hop acid. Compositions comprising hop acids and papermaking suspensions or slurries, and/or additives, such as paper making additives, are also provided.

US Patent:

7166192, Jan 23, 2007

Filed:

May 23, 2003

Appl. No.:

10/444522

Inventors:

Riet van de Steeg - Bennekom, NL
Raymond Koerhuis - Harderwijk, NL
Freddie L. Singleton - Switzerland FL, US

Assignee:

Hercules Incorporated - Wilmington DE

International Classification:

D21F 1/32

US Classification:

162199, 162272, 1621641, 162175, 162DIG 4

Abstract:

A method for controlling Pitch and Stickies is disclosed. The method comprises adding hydrophobically modified hydroxyethyl cellulose (HMHEC) and cationic polymers to a cellulosic fiber slurry (pulp) or to a paper process or to a paper making system and results in a higher degree of inhibiting organic deposition and retention of pitch on paper fiber as compared to the inhibition of the individual ingredients. The combination of HMHEC and cationic polymers surprising results in a synergistic effect.

US Patent:

7306702, Dec 11, 2007

Filed:

Apr 11, 2003

Appl. No.:

10/412512

Inventors:

Jacqueline K. Pease - St. Augustine FL, US
G. Gunar McKendree - Jacksonville FL, US
Freddie L. Singleton - Switzerland FL, US
George S. Thomas - West Chester PA, US

Assignee:

Hercules Incorporation - Wilmington DE

International Classification:

D21F 1/32

US Classification:

162199, 162158, 162DIG 4, 162272, 162275, 134 15, 134 21, 435 41, 435262

Abstract:

Methods for reducing or inhibiting deposition on or within press felts to increase the effective life of the press felt and reduce or eliminate the need for batch cleaning are disclosed. The methods disclosed treat press felt while paper is being produced with compositions containing at least one enzyme. Additionally, the enzymes can be applied in combination with other non-enzymatic felt conditioning products either by blending and applying at the same application point or by applying the enzyme and the non-enzymatic felt conditioning product at two different locations along the felt. The treatments are applied continuously or intermittently.

US Patent:

7311878, Dec 25, 2007

Filed:

Aug 24, 2006

Appl. No.:

11/509141

Inventors:

Freddie L. Singleton - Switzerland FL, US
Michael J. Mayer - Jacksonville FL, US
Alexander W. Breen - Jacksonville FL, US

Assignee:

Hercules Incorporated - Wilmington DE

International Classification:

C07F 1/76

US Classification:

422 37, 210753, 210754, 210755, 210756, 564114, 564118, 564119

Abstract:

An apparatus and methods to produce synergistic mixtures (or combinations) of haloamines to control growth of microorganisms in aqueous systems are disclosed. The apparatus and methods to produce synergistic mixtures entails producing a batch quantity of a haloamine and converting part of the haloamine to a second haloamine species to form the synergistic mixture.

US Patent:

7578904, Aug 25, 2009

Filed:

Dec 10, 2007

Appl. No.:

12/001103

Inventors:

Jacqueline K. Pease - St. Augustine FL, US
G. Gunar McKendree - Jacksonville FL, US
Freddie L. Singleton - Switzerland FL, US
George S. Thomas - West Chester PA, US

Assignee:

Hercules Incorporated - Wilmington DE

International Classification:

D21F 1/32

US Classification:

162199, 162158, 162DIG 4, 134 15, 134 21, 435 41

Abstract:

Methods for reducing or inhibiting deposition on or within press felts to increase the effective life of the press felt and reduce or eliminate the need for batch cleaning are disclosed. The methods disclosed treat press felt while paper is being produced with compositions containing at least one enzyme. Additionally, the enzymes can be applied in combination with other non-enzymatic felt conditioning products either by blending and applying at the same application point or by applying the enzyme and the non-enzymatic felt conditioning product at two different locations along the felt. The treatments are applied continuously or intermittently.

US Patent:

7820060, Oct 26, 2010

Filed:

Aug 24, 2006

Appl. No.:

11/509158

Inventors:

Michael J. Mayer - Jacksonville FL, US
Freddie L. Singleton - Switzerland FL, US

Assignee:

Hercules Incorporated - Wilmington DE

International Classification:

C02F 1/76

US Classification:

210754, 162161, 210755, 210756, 210759, 210760, 210764, 422 37, 424661, 424664

Abstract:

Synergistic mixtures of haloamines and their use to control the growth of microorganisms in aqueous systems are disclosed. The method of using the synergistic mixtures entails adding an effective amount of a monohaloamine and an effective amount of a dihaloamine to an aqueous system. The ratio of monohaloamine to dihaloamine is selected to result in a synergistic biocidal effect.

US Patent:

8613859, Dec 24, 2013

Filed:

Oct 25, 2010

Appl. No.:

12/911463

Inventors:

Michael J. Mayer - Jacksonville FL, US
Freddie L. Singleton - Vernon Hills IL, US

Assignee:

Hercules Incorporated - Wilmington DE

International Classification:

C02F 1/76
C02F 1/50

US Classification:

210754, 210755, 210756, 210759, 210760, 210764, 424661, 424664, 422 37, 162161

Abstract:

Synergistic mixtures of haloamines and their use to control the growth of microorganisms in aqueous systems are disclosed. The method of using the synergistic mixtures entails adding an effective amount of a monohaloamine and an effective amount of a dihaloamine to an aqueous system. The ratio of monohaloamine to dihaloamine is selected to result in a synergistic biocidal effect.

US Patent:

20040014122, Jan 22, 2004

Filed:

Jun 27, 2003

Appl. No.:

10/608062

Inventors:

Alexander Breen - Jacksonville FL, US
Freddie Singleton - Switzerland FL, US

International Classification:

C12Q001/68
C07H021/04

US Classification:

435/006000, 536/024300

Abstract:

Methods for the systematic identification of sporulation genes in spore forming bacteria comprising amplifying a portion of a gene from total cellular DNA of said spore forming bacteria by using a primer; and detecting the presence of the amplification product.