Patents by Inventor Simon Frisk

Simon Frisk 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).

  • Infrared solvent stripping process
    Publication number: 20080146698
    Abstract: A process for stripping chemically bonded spinning solvent from a solution-spun nonwoven web comprising the steps of providing a nonwoven web comprising solvent-laden polymeric fibers having average fiber diameters of less than about 1 micrometer, and transporting the nonwoven web through a solvent stripping zone wherein infrared radiation irradiates the nonwoven web and a solvent stripping fluid impinges on the nonwoven web in order to reduce the solvent concentration of the fibers to less than about 10,000 ppmw.
    Type: Application
    Filed: December 18, 2006
    Publication date: June 19, 2008
    Inventors: Joseph Brian Hovanec, Simon Frisk
  • Microwave solvent stripping process
    Publication number: 20080142737
    Abstract: A process for stripping chemically bonded spinning solvent from a solution-spun nonwoven web comprising the steps of providing a nonwoven web comprising solvent-laden polymeric fibers having average fiber diameters of less than about 1 micrometer, and transporting the nonwoven web through a solvent stripping zone wherein microwave radiation irradiates the nonwoven web and a solvent stripping fluid impinges on the nonwoven web in order to reduce the solvent concentration of the fibers to less than about 10,000 ppmw.
    Type: Application
    Filed: December 18, 2006
    Publication date: June 19, 2008
    Inventors: Joseph Brian Hovanec, Simon Frisk
  • Nanowebs
    Publication number: 20080070463
    Abstract: A nonwoven web of fibers that have a number average diameter of less than 1 micron. The web can have a Poisson Ratio of less than about 0.8, a solidity of at least about 20%, a basis weight of at least about 1 gsm, and a thickness of at least 1 micrometer.
    Type: Application
    Filed: September 20, 2006
    Publication date: March 20, 2008
    Inventors: Pankaj Arora, Guanghui Chen, Simon Frisk, David Keith Graham, Robert Anthony Marin
  • Electrochemical double layer capacitors including improved nanofiber separators
    Patent number: 7170739
    Abstract: Electrochemical double layer capacitors are disclosed that advantageously include separators having at least one porous layer of nanofibers having average diameters of between about 50 nm and about 1000 nm that provide improved combinations of reduced thickness, barrier against the development of soft short-circuits and low ionic resistance as compared with known capacitor separators.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: January 30, 2007
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Pankaj Arora, Simon Frisk, Lu Zhang
  • Batteries including improved fine fiber separators
    Patent number: 7112389
    Abstract: Alkaline and lithium batteries are disclosed that advantageously include separators comprising at least one porous layer of fine fibers having a diameter of between about 50 nm and about 3000 nm that provide improved combinations of reduced thickness, dendritic barrier against short-circuiting and low ionic resistance as compared with known battery separators.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: September 26, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Pankaj Arora, Simon Frisk, Lu Zhang