Patents Assigned to Toray Fluorofibers (America), Inc.
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Patent number: 11242630Abstract: A wettable, dispersion spun fluoropolymer fiber prepared from non-melt-processible fluoropolymer particles.Type: GrantFiled: March 23, 2016Date of Patent: February 8, 2022Assignee: Toray Fluorofibers (America), Inc.Inventors: Arthur Nelson, Taigi Yokota, Dung Trieu, Trevor Guldstrand, Matthew Hutto
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Patent number: 10106916Abstract: A fluoropolymer fiber exhibiting improved wear properties prepared from a blend of fluoropolymer particles and aluminum oxide particles. The concentration of aluminum oxide particles in the blend ranges from between about 0.1% to about 5%, with a specific concentration of 0.1% to 1.0%. The fluoropolymer fibers may be dispersion spun, melt spun or paste extruded.Type: GrantFiled: December 22, 2015Date of Patent: October 23, 2018Assignee: TORAY FLUOROFIBERS (AMERICA), INC.Inventors: Chester Darryl Moon, Arthur Russell Nelson, Trevor Guldstrand, Matt Hutto
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Patent number: 9422642Abstract: A dispersion spun fluoropolymer fiber prepared from non-melt-processible polytetrafluoroethylene particles and aluminum oxide particles. The concentration of Al2O3 in the aqueous dispersion may range from between about 0.1% to about 5%, with specific concentration of 0.1%, 1.0. The aqueous dispersion is mixed with an aqueous matrix polymer solution containing a matrix polymer and then extruded into a coagulation bath containing a concentration of ions which coagulate the matrix polymer to form an intermediate fiber structure which carries ionic species. The intermediate fiber structure is sintered to decompose the matrix polymer and coalesce the polytetrafluoroethylene particles and the Al2O3 particles into a blended fiber. The resulting, blended fluoropolymer fiber exhibits improved properties relative to 100% dispersion spun polytetrafluoroethylene fibers.Type: GrantFiled: July 29, 2013Date of Patent: August 23, 2016Assignee: Toray Fluorofibers (America), Inc.Inventors: Chester Darryl Moon, Arthur Russell Nelson, Trevor Guldstrand, Matt Hutto
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Publication number: 20150031801Abstract: A dispersion spun fluoropolymer fiber prepared from non-melt-processible polytetrafluoroethylene particles and aluminum oxide particles. The concentration of Al2O3 in the aqueous dispersion may range from between about 0.1% to about 5%, with specific concentration of 0.1%, 1.0. The aqueous dispersion is mixed with an aqueous matrix polymer solution containing a matrix polymer and then extruded into a coagulation bath containing a concentration of ions which coagulate the matrix polymer to form an intermediate fiber structure which carries ionic species. The intermediate fiber structure is sintered to decompose the matrix polymer and coalesce the polytetrafluoroethylene particles and the Al2O3 particles into a blended fiber. The resulting, blended fluoropolymer fiber exhibits improved properties relative to 100% dispersion spun polytetrafluoroethylene fibers.Type: ApplicationFiled: July 29, 2013Publication date: January 29, 2015Applicant: Toray Fluorofibers (America), Inc.Inventors: Chester Darryl Moon, Arthur Russell Nelson, Trevor Guldstrand, Matt Hutto
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Patent number: 8132748Abstract: A fluoropolymer material exhibiting an increased hydrophilicity prepared by processing the material in a cryogenic grinding mill.Type: GrantFiled: March 3, 2009Date of Patent: March 13, 2012Assignee: Toray Fluorofibers (America), Inc.Inventors: J. Michael Donckers, II, Arthur Russell Nelson, Chester Darryl Moon
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Patent number: 8132747Abstract: A fluoropolymer material exhibiting an increased hydrophilicity prepared by processing the material in a jet mill.Type: GrantFiled: March 3, 2009Date of Patent: March 13, 2012Assignee: Toray Fluorofibers (America), Inc.Inventors: J. Michael Donckers, II, Arthur Russell Nelson, Chester Darryl Moon
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Patent number: 8003208Abstract: A fluoropolymer material exhibiting an increased hydrophilicity prepared by processing the material in a jet mill or a cryogenic grinding mill.Type: GrantFiled: March 3, 2009Date of Patent: August 23, 2011Assignee: Toray Fluorofibers (America), Inc.Inventors: J. Michael Donckers, II, Arthur Russell Nelson, Chester Darryl Moon
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Patent number: 7740937Abstract: A flock material exhibiting an increased degree of filament separation prepared by cutting a fluoropolymer or carbon fiber yarn into lengths, introducing mechanical energy into the lengths in order to cause the lengths to separate into single-filaments fibers and removing or classifying at least a portion of the single-filament fibers from the lengths in order to obtain a flock having a particular fraction of single-filament, fluoropolymer or carbon fibers.Type: GrantFiled: September 5, 2007Date of Patent: June 22, 2010Assignee: Toray Fluorofibers (America), Inc.Inventors: Kishio Miwa, Eric William Winters
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Patent number: 7739750Abstract: A single layer, lightweight protective garment prepared from a fabric made of woven polytetrafluoroethylene staple fiber yam, the fabric having an outer surface composed fluoropolymer staple fibers.Type: GrantFiled: January 15, 2008Date of Patent: June 22, 2010Assignee: Toray Fluorofibers (America), Inc.Inventors: Arthur Russell Nelson, Mike Donckers
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Publication number: 20090178187Abstract: A single layer, lightweight protective garment prepared from a fabric made of woven polytetrafluoroethylene staple fiber yam, the fabric having an outer surface composed fluoropolymer staple fibers.Type: ApplicationFiled: January 15, 2008Publication date: July 16, 2009Applicant: Toray Fluorofibers (America), Inc.Inventors: Arthur Russell Nelson, Mike Donckers
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Patent number: 7498079Abstract: A dispersion spun polytetrafluoroethylene fiber exhibiting improved elongation prior to fiber break and increased thermal stability, the fiber prepared by forming a spin mix containing a dispersion of poly(tetrafluoroethylene) particles, forming an intermediate fluoropolymer fiber structure from the spin mix, sintering the intermediate fluoropolymer fiber structure and forming a continuous fluoropolymer filament yarn, drawing the continuous fluoropolymer filament yarn, and thereafter heat setting the continuous fluoropolymer filament yarn.Type: GrantFiled: June 14, 2007Date of Patent: March 3, 2009Assignee: Toray Fluorofibers (America), Inc.Inventor: Mike Donckers
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Patent number: 7346961Abstract: A flock material exhibiting an increased degree of filament separation prepared by cutting a fluoropolymer or carbon fiber yarn into lengths, introducing mechanical energy into the lengths in order to cause the lengths to separate into single-filaments fibers and removing or classifying at least a portion of the single-filament fibers from the lengths in order to obtain a flock having a particular fraction of single-filament, fluoropolymer or carbon fibers.Type: GrantFiled: September 8, 2004Date of Patent: March 25, 2008Assignee: Toray Fluorofibers (America), Inc.Inventors: Kishio Miwa, Eric William Winters