1
Francis G Gallagher, Cathy J Hamilton, Steven M Hansen, Hyunkook Shin, Raymond F Tietz: Polyesters and their use in compostable products such as disposable diapers. E I Du Pont de Nemours and Company, December 15, 1992: US05171308 (74 worldwide citation)

The invention provides novel polyesters, fibers and films, nonwovens from the fibers and disposable products of the polyesters such as diapers. The products are degradable under the conditions typically existing in waste composting processes, have low ingredient costs and yet provide strength and to ...


2
Steven M Hansen, James M Howell, Cecil E Reese: Sulfonate-containing polyesters dyeable with basic dyes. E I du Pont de Nemours and Company, September 24, 1996: US05559205 (40 worldwide citation)

A process is provided for preparing basic-dyeable polyester polymer, and shaped articles therefrom, such as fibers, films and bottles, involving using the metal sulfonate salt of a glycollate of isophthalic acid as a polymerization catalyst in making ethylene terephthalate polyester copolymers. This ...


3
Steven M Hansen, James M Howell, Cecil E Reese: Sulfonate-containing polyesters dyeable with basic dyes. E I Du Pont de Nemours and Comany, March 4, 1997: US05607765 (36 worldwide citation)

Filaments of ethylene terephthalate polyester copolymers that contain a lithium salt of a glycollate of 5-sulfo-isophthalic acid provide improvements over commercially-available basic-dyeable polyester filaments.


4
Francis G Gallagher, Cathy J Hamilton, Steven M Hansen, Hyunkook Shin, Raymond F Tietz: Polyesters and their use in compostable products such as disposable diapers. E I Du Pont de Nemours and Company, December 15, 1992: US05171309 (29 worldwide citation)

The invention provides novel polyesters, fibers and films, nonwovens from the fibers and disposable products of the polyesters such as diapers. The products are degradable under the conditions typically existing in waste composting processes, have low ingredient costs and yet provide strength and to ...


5
Steven M Hansen: Processing ethylene terephthalate/hexahydroterephthalate copolymer filaments. E I Du Pont de Nemours and Company, December 3, 1991: US05069843 (4 worldwide citation)

A process for improving the properties of fibers of a copolymer of ethylene terephthalate/hexahydroterephthlate units with a high proportion of hexahydroterephthalate units by a 2-stage drawing, crimping, relaxing process to provide stretchy filaments of high elongation accompanied by low shrinkage.


6
Steven M Hansen: Processing of ethylene terephthalate/hexahydroterephthalate copolymer filaments. E I du Pont de Nemours and Company, December 17, 1991: US05073322 (2 worldwide citation)

Improved fibers of a copolymer of ethylene terephthalate/hexahydroterephthalate containing a high proportion of hexahydroterephthalate are obtained by a 2-stage drawing process, involving annealing, and crimping, with the annealing being performed within a temperature range of about 140.degree. to a ...


7
Arnold Frances, Achim Amma, Steven M Hansen: Slurries containing microfiber and micropowder, and methods for using and making same. E I du Pont de Nemours and Company, April 21, 2009: US07521493

A slurry containing microfiber and micropowders, and a process for making such a slurry, are provided. The slurry containing microfibers and micropowders is more stable and easier to process, and the micropowder is less likely to separate out of the slurry or agglomerate in comparison to a slurry co ...


8
Steven M Hansen, Michael Jackson, Moses T Lee, Vince D Sutlic: Ionomeric sheeting in roll form and process for producing same. E I du Pont de Nemours and Company, Maria M Kourtakis, August 6, 2013: USH0002280

Provided herein is relatively thick ionomeric sheeting that can be taken up into a roll and supplied in continuous form. Also provided herein are methods of manufacturing rolls of relatively thick, continuous ionomeric sheeting. Further provided herein are methods of producing glass laminates, where ...


9
Steven M Hansen, Richard Allen Hayes, Sam Louis Samuels, Arnold Frances: Polyesters containing microfibers, and methods for making and using same. E I Du Pont de Nemours And Company, Legal Patent Records Center, December 16, 2004: US20040254286-A1

Polyester compositions comprising microfibers are disclosed. The compositions are made by contacting microfibers with polymerizable components, such as monomers, suitable for making polyesters, and polymerizing the polymerizable components. The microfibers can be provided in the form of a slurry. Th ...


10
Richard Allen Hayes, Steven M Hansen, Kenneth B Atwood: Polyester composition comprising carbon black. E I Du Pont de Nemours And Company, Legal Patent Records Center, July 14, 2005: US20050154118-A1

This invention provides certain processes to produce polyester compositions, which incorporate certain carbon black materials. This invention further provides the polyester products produced and shaped articles formed therefrom. The processes allows for the lowest levels of certain carbon blacks whi ...



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