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Mayis Seapan Phones & Addresses

  • Glen Mills, PA
  • Powderhorn, CO
  • Ithaca, NY
  • 912 Barley Ct, Landenberg, PA 19350 (610) 274-3322
  • Stillwater, OK
  • Greenville, DE
  • Austin, TX

Work

Position: Homemaker

Education

Degree: Graduate or professional degree

Publications

Us Patents

Hydrogenation Of Chemically Derived 1,3-Propanediol

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US Patent:
7084311, Aug 1, 2006
Filed:
Aug 5, 2003
Appl. No.:
10/634666
Inventors:
Hari Babu Sunkara - Hockessin DE, US
Mayis Seapan - Landenberg PA, US
George F. Diffendall - Wilmington DE, US
Tyler T. Ames - Wilmington DE, US
Assignee:
E. I. Du Pont de Nemours and Company - Wilmington DE
International Classification:
C07C 29/74
C07C 29/88
C07C 29/90
C07C 27/26
US Classification:
568868, 568852, 568854, 568869
Abstract:
Disclosed is a process comprising contacting chemical 1,3-propanediol with hydrogen in the presence of a hydrogenation catalyst. Preferably, the chemical 1,3-propanediol, before the contacting has an initial color and, after the contacting, has a color that is lower than the initial color.

Hydrogenation Of Biochemical Derived 1,3 -Propanediol

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US Patent:
7098368, Aug 29, 2006
Filed:
May 5, 2004
Appl. No.:
10/839655
Inventors:
Mayis Seapan - Landenberg PA, US
George F. Diffendall - Wilmington DE, US
Robert E. Trotter - Wilmington DE, US
Tyler T. Ames - Wilmington DE, US
F. Glenn Gallagher - Wilmington DE, US
Assignee:
E. I. du Pont de Nemours and Company - Wilmington DE
International Classification:
C07C 29/74
C07C 29/88
C07C 29/90
C07C 27/26
US Classification:
568868, 568852, 568854, 568869, 435132, 435155, 435157, 435158, 435159
Abstract:
The invention discloses a hydrogenation process for removing impurities and controlling acid for use in downstream processing of biochemically-derived 1,3-propanediol. Preferably, the biochemically-derived 1,3-propanediol, before the contacting, has an initial color and, after the contracting, has a color that is lower than the initial color.

Purification Of Biochemically Derived 1,3-Propanediol

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US Patent:
7211699, May 1, 2007
Filed:
Aug 12, 2005
Appl. No.:
11/202792
Inventors:
Mayis Seapan - Landenberg PA, US
George F. Diffendall - Wilmington DE, US
Robert E. Trotter - Wilmington DE, US
Tyler T. Ames - Wilmington DE, US
F. Glenn Gallagher - Wilmington DE, US
Assignee:
E. I. du Pont de Nemours and Company - Wilmington DE
International Classification:
C07C 43/11
C07C 43/13
C07C 29/74
C07C 29/88
C07C 27/90
US Classification:
568619, 568868, 568869, 568852, 568854
Abstract:
The invention discloses a hydrogenation process for removing impurities and controlling acid for use in downstream processing of biochemically-derived 1,3-propanediol. Preferably, the biochemically-derived 1,3-propanediol, before the contacting, has an initial color and, after the contracting, has a color that is lower than the initial color.

Hydrogenation Of Polytrimethylene Ether Glycol

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US Patent:
7342142, Mar 11, 2008
Filed:
Aug 5, 2003
Appl. No.:
10/634612
Inventors:
Hari Babu Sunkara - Hockessin DE, US
Mayis Seapan - Landenberg PA, US
George Francis Diffendall - Wilmington DE, US
Francis Glenn Gallagher - Wilmington DE, US
Assignee:
E.I. du Pont de Nemours and Company - Wilmington DE
International Classification:
C07C 29/34
C07C 29/32
US Classification:
568868, 568869, 568617, 568621, 560248
Abstract:
A process comprising contacting PO3G having color with hydrogen in the presence of a hydrogenation catalyst, wherein the PO3G, after hydrogenation, has a APHA color of less than about 50.

Process For Concentrated Biomass Saccharification

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US Patent:
7807419, Oct 5, 2010
Filed:
Aug 22, 2007
Appl. No.:
11/843114
Inventors:
Susan M. Hennessey - Avondale PA, US
Mayis Seapan - Landenberg PA, US
Richard T. Elander - Evergreen CO, US
Melvin P. Tucker - Lakewood CO, US
Assignee:
E. I. du Pont de Nemours and Company - Wilmington DE
Alliance for Sustainable Energy LLC - Golden CO
International Classification:
C12P 19/00
C12P 19/02
C12P 19/04
C12P 19/06
C12P 7/18
US Classification:
435101, 435 72, 435105, 435158, 435160, 435161
Abstract:
Processes for saccharification of pretreated biomass to obtain high concentrations of fermentable sugars are provided. Specifically, a process was developed that uses a fed batch approach with particle size reduction to provide a high dry weight of biomass content enzymatic saccharification reaction, which produces a high sugars concentration hydrolysate, using a low cost reactor system.

Purification Of Biologically-Produced 1,3-Propanediol

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US Patent:
7919658, Apr 5, 2011
Filed:
May 5, 2004
Appl. No.:
10/839188
Inventors:
Dennis M. Adkesson - Decatur IL, US
James S. Disney - Decatur IL, US
Bryan C. Dravis - Fishers IN, US
James M. Gaddy - Decatur IL, US
William F. Lehnhardt - Lovington IL, US
Jefferson C. Lievense - Forsyth IL, US
Gregory M. Wenndt - Lafayette IN, US
Tyler T. Ames - Wilmington DE, US
Patrick Fitzgibbon - Hockessin DE, US
F. Glenn Gallagher - Wilmington DE, US
Michael L. Luyben - Wilmington DE, US
Mayis Seapan - Landenberg PA, US
Robert E. Trotter - Wilmington DE, US
Albert W. Alsop - Wilmington DE, US
Eugene K. Yu - Forsyth IL, US
Luis Alberto Chu - Landenberg PA, US
Assignee:
E. I. du Pont de Nemours and Company - Wilmington DE
International Classification:
C07C 29/74
C07C 31/18
US Classification:
568868, 568872
Abstract:
A process for purifying 1,3-propanediol from the fermentation broth of a cultured that has been bioengineered to synthesize 1,3-propanediol from sugar is provided. The basic process entails filtration, ion exchange and distillation of the fermentation broth product stream, preferably including chemical reduction of the product during the distillation procedure. Also provided are highly purified compositions of 1,3-propanediol.

Purification Of Biologically-Produced 1,3-Propanediol

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US Patent:
8183417, May 22, 2012
Filed:
Feb 25, 2011
Appl. No.:
13/035246
Inventors:
Dennis N. Adkesson - Decatur IL, US
Albert W. Alsop - Wilmington DE, US
Tyler T. Ames - Wilmington DE, US
Luis A. Chu - Landenberg PA, US
James M. Disney - Decatur IL, US
Bryan C. Dravis - Fishers IN, US
Patrick Fitzgibbon - Hockessin DE, US
James M. Gaddy - Decatur IL, US
F. Glenn Gallagher - Wilmington DE, US
William F. Lehnhardt - Lovington IL, US
Jefferson C. Lievense - Forsyth IL, US
Michael L. Luyben - Perkiomenville PA, US
Mayis Seapan - Landenberg PA, US
Robert E. Trotter - Wilmington DE, US
Gregory M. Wenndt - Lafayette IN, US
Eugene K. Yu - Hockessin DE, US
Assignee:
E. I. du Pont de Nemours and Company - Wilmington DE
Tate & Lyle Ingredients Americas LLC - Decatur ID
International Classification:
C07C 29/74
C07C 31/18
US Classification:
568868, 568872
Abstract:
A process for purifying 1,3-propanediol from the fermentation broth of a cultured that has been bioengineered to synthesize 1,3-propanediol from sugar is provided. The basic process entails filtration, ion exchange and distillation of the fermentation broth product stream, preferably including chemical reduction of the product during the distillation procedure. Also provided are highly purified compositions of 1,3-propanediol.

Hydrogenation Of Caryophellene

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US Patent:
8293217, Oct 23, 2012
Filed:
Dec 20, 2007
Appl. No.:
12/519614
Inventors:
Keith W. Hutchenson - Lincoln University PA, US
Scott Christopher Jackson - Wilmington DE, US
Leo Ernest Manzer - Wilmington DE, US
Mark A. Scialdone - West Grove PA, US
Mayis Seapan - Landenberg PA, US
Assignee:
E I du Pont de Nemours and Company - Wilmington DE
International Classification:
A61K 8/31
A61K 8/33
A61Q 17/04
A61Q 17/02
A01N 33/00
A01N 27/00
A01N 31/02
US Classification:
424 59, 424 762, 514729, 514763, 514766
Abstract:
A process for the hydrogenation of a mixture of caryophyllenes by contact with hydrogen in the presence of a supported catalyst. The resulting products are useful for the application to skin.
Mayis Etal Seapan from Glen Mills, PA, age ~80 Get Report