Patents by Inventor Gregory W. Welsch
Gregory W. Welsch has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9856391Abstract: A process for preparing a starch dispersion may include combining a feed starch and an aqueous liquid to form a starch slurry. The starch slurry may be subjected to a first degradation treatment to form a first mixture. A temperature of the starch slurry during the first degradation treatment may be less than a gelation temperature. The first mixture may be heated to a temperature between the gelation temperature and a solubilization temperature. The heated first mixture may be subjected to a second degradation treatment to form a second mixture. The second mixture may be sheared to form the starch dispersion.Type: GrantFiled: April 10, 2014Date of Patent: January 2, 2018Assignee: TRINSEO EUROPE GMBHInventors: Gregory W. Welsch, Giona Kilcher, Pekka Johannes Salminen, David L. Church, Dustin E. Burton, David E. Hammond
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Patent number: 9695551Abstract: In one or more embodiments, the present disclosure provides for a process for preparing a dispersion of starch particles in an aqueous liquid. In one or more embodiments, the process includes introducing a feed starch and the aqueous liquid into a rotor stator mixer, maintaining the feed starch and the aqueous liquid in the rotor stator mixer at a temperature ranging from a gelation temperature to less than a solubilization temperature, and shearing the feed starch into starch particles with the rotor stator mixer to form the dispersion of starch particles in the aqueous liquid. In one or more embodiments, the starch particles produced by this process have an average particle size diameter of no larger than 2 micrometers and the dispersion has 20 to 65 weight percent of the starch particles based on a total weight of the dispersion.Type: GrantFiled: July 26, 2016Date of Patent: July 4, 2017Assignee: Dow Global Technologies LLCInventors: Gregory W. Welsch, Brian J. Ninness, Michael D. Read, Timothy J. Young, Michal E. Matteucci, David E. Hammond, Liang Hong, Donald K. Ervick, Jr.
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Publication number: 20160333525Abstract: In one or more embodiments, the present disclosure provides for a process for preparing a dispersion of starch particles in an aqueous liquid. In one or more embodiments, the process includes introducing a feed starch and the aqueous liquid into a rotor stator mixer, maintaining the feed starch and the aqueous liquid in the rotor stator mixer at a temperature ranging from a gelation temperature to less than a solubilization temperature, and shearing the feed starch into starch particles with the rotor stator mixer to form the dispersion of starch particles in the aqueous liquid. In one or more embodiments, the starch particles produced by this process have an average particle size diameter of no larger than 2 micrometers and the dispersion has 20 to 65 weight percent of the starch particles based on a total weight of the dispersion.Type: ApplicationFiled: July 26, 2016Publication date: November 17, 2016Applicant: Dow Global Technologies LLCInventors: Gregory W. Welsch, Brian J. Ninness, Michael D. Read, Timothy J. Young, Michal E. Matteucci, David E. Hammond, Liang Hong, Donald K. Ervick, JR.
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Patent number: 9422669Abstract: In one or more embodiments, the present disclosure provides for a process for preparing a dispersion of starch particles in an aqueous liquid. In one or more embodiments, the process includes introducing a feed starch and the aqueous liquid into a rotor stator mixer, maintaining the feed starch and the aqueous liquid in the rotor stator mixer at a temperature ranging from a gelation temperature to less than a solubilization temperature, and shearing the feed starch into starch particles with the rotor stator mixer to form the dispersion of starch particles in the aqueous liquid. In one or more embodiments, the starch particles produced by this process have an average particle size diameter of no larger than 2 micrometers and the dispersion has 20 to 65 weight percent of the starch particles based on a total weight of the dispersion.Type: GrantFiled: November 26, 2013Date of Patent: August 23, 2016Assignee: Dow Global Technologies LLCInventors: Gregory W. Welsch, Brian J. Ninness, Michael D. Read, Timothy J. Young, Michal E. Matteucci, David E. Hammond, Liang Hong, Donald K. Ervick, Jr.
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Publication number: 20160046819Abstract: A process for preparing a starch dispersion may include combining a feed starch and an aqueous liquid to form a starch slurry. The starch slurry may be subjected to a first degradation treatment to form a first mixture. A temperature of the starch slurry during the first degradation treatment may be less than a gelation temperature. The first mixture may be heated to a temperature between the gelation temperature and a solubilization temperature. The heated first mixture may be subjected to a second degradation treatment to form a second mixture. The second mixture may be sheared to form the starch dispersion.Type: ApplicationFiled: April 10, 2014Publication date: February 18, 2016Applicant: TRINSEO EUROPE GmbHInventors: Gregory W. WELSCH, Giona KILCHER, Pekka Johannes SALMINEN, David L. CHURCH, Dustin E. BURTON, David E. HAMMOND
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Patent number: 9068062Abstract: A process for the preparation of a dispersion of starch in an hydroxylic liquid, the process comprising introducing a feed starch and an hydroxylic liquid to an extruder, and applying shear forces in the extruder to the starch and the liquid under conditions sufficient to prepare a stable dispersion of starch particles in the hydroxylic liquid.Type: GrantFiled: December 2, 2010Date of Patent: June 30, 2015Inventors: Gregory W. Welsch, Michael D. Read, John A. Roper, III, Brian J. Ninness, Evelyn L. Wilson
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Patent number: 8637155Abstract: In one or more embodiments, the present disclosure provides for a process for preparing a dispersion of starch particles in an aqueous liquid. In one or more embodiments, the process includes introducing a feed starch and the aqueous liquid into a rotor stator mixer, maintaining the feed starch and the aqueous liquid in the rotor stator mixer at a temperature ranging from a gelation temperature to less than a solubilization temperature, and shearing the feed starch into starch particles with the rotor stator mixer to form the dispersion of starch particles in the aqueous liquid. In one or more embodiments, the starch particles produced by this process have an average particle size diameter of no larger than 2 micrometers and the dispersion has 20 to 65 weight percent of the starch particles based on a total weight of the dispersion.Type: GrantFiled: June 6, 2011Date of Patent: January 28, 2014Assignee: Dow Global Technologies LLCInventors: Gregory W. Welsch, Brian J. Ninness, Michael D. Read, Timothy J. Young, Michal E. Matteucci, David E. Hammond, Liang Hong, Donald K. Ervick, Jr.
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Publication number: 20130000514Abstract: A process for the preparation of a dispersion of starch in an hydroxylic liquid, the process comprising introducing a feed starch and an hydroxylic liquid to an extruder, and applying shear forces in the extruder to the starch and the liquid under conditions sufficient to prepare a stable dispersion of starch particles in the hydroxylic liquid.Type: ApplicationFiled: December 2, 2010Publication date: January 3, 2013Inventors: Gregory W. Welsch, Michael D. Read, John A. Roper, III, Brian J. Ninness, Evelyn L. Wilson
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Publication number: 20110300394Abstract: In one or more embodiments, the present disclosure provides for a process for preparing a dispersion of starch particles in an aqueous liquid. In one or more embodiments, the process includes introducing a feed starch and the aqueous liquid into a rotor stator mixer, maintaining the feed starch and the aqueous liquid in the rotor stator mixer at a temperature ranging from a gelation temperature to less than a solubilization temperature, and shearing the feed starch into starch particles with the rotor stator mixer to form the dispersion of starch particles in the aqueous liquid. In one or more embodiments, the starch particles produced by this process have an average particle size diameter of no larger than 2 micrometers and the dispersion has 20 to 65 weight percent of the starch particles based on a total weight of the dispersion.Type: ApplicationFiled: June 6, 2011Publication date: December 8, 2011Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Gregory W. Welsch, Brian J. Ninness, Michael D. Read, Timothy J. Young, Michal E. Matteucci, David E. Hammond, Liang Hong