Patents by Inventor David W. Luckey
David W. Luckey 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: 9080260Abstract: The invention relates a heat-treated poly(metaphenylene isophthalamide) polymer fiber having a crystalline structure as represented by a carbonyl stretch peak at a wavelength of 1,650 cm?1 in a Raman spectra response which before coloration with a dye, shrinks linearly 0.4 percent or less when exposed to 285 degrees Centigrade for 30 minutes; and which after contact with an aqueous red dye solution for 1 hour at 120 degrees Centigrade, has an “L” value coloration of at least 40 units lower than the “L” value of the fiber before coloration.Type: GrantFiled: June 29, 2011Date of Patent: July 14, 2015Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Mark H Headinger, Edgar N Rudisill, David W Luckey
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Publication number: 20110257359Abstract: The invention relates a heat-treated poly(metaphenylene isophthalamide) polymer fiber having a crystalline structure as represented by a carbonyl stretch peak at a wavelength of 1,650 cm?1 in a Raman spectra response which before coloration with a dye, shrinks linearly 0.4 percent or less when exposed to 285 degrees Centigrade for 30 minutes; and which after contact with an aqueous red dye solution for 1 hour at 120 degrees Centigrade, has an “L” value coloration of at least 40 units lower than the “L” value of the fiber before coloration.Type: ApplicationFiled: June 29, 2011Publication date: October 20, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Mark H. Headinger, Edgar N. Rudisill, David W. Luckey
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Patent number: 7998575Abstract: The invention relates to a continuous dry spinning process for preparing a fiber from a polymer solution having concentrations of polymer, salt, solvent and water. After the fiber is extruded and quenched, the fiber is placed in contact with a conditioning solution comprising concentrations of solvent, salt, and water. The conditioning solution acts upon the fiber to plasticize the fiber prior to being drawn. The conditioning solution has concentrations of solvent, salt, and water so that the fiber is plasticized to the extent necessary for drawing but does not plasticize the fiber to such an extent as to re-dissolve the fiber into a polymeric solution. A heat-treated fiber manufactured from this process has improved shrinkage and can be colored to darker shades.Type: GrantFiled: December 19, 2007Date of Patent: August 16, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Mark H. Headinger, Edgar N. Rudisill, David W. Luckey
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Patent number: 7780889Abstract: The invention relates to a continuous dry spinning process for preparing a fiber from a polymer solution having concentrations of polymer, salt, solvent and water. After the fiber is extruded and quenched, the fiber is placed in contact with a conditioning solution comprising concentrations of solvent, salt, and water. The conditioning solution acts upon the fiber to plasticize the fiber prior to being drawn. The conditioning solution has concentrations of solvent, salt, and water so that the fiber is plasticized to the extent necessary for drawing but does not plasticize the fiber to such an extent as to re-dissolve the fiber into a polymeric solution. A heat-treated fiber manufactured from this process has improved shrinkage and can be colored to darker shades.Type: GrantFiled: December 19, 2007Date of Patent: August 24, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Mark H. Headinger, Edgar N. Rudisill, David W. Luckey
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Patent number: 7771638Abstract: The invention relates to a continuous dry spinning process for preparing a fiber from a polymer solution having concentrations of polymer, salt, solvent and water. After the fiber is extruded and quenched, the fiber is placed in contact with a conditioning solution comprising concentrations of solvent, salt, and water. The conditioning solution acts upon the fiber to plasticize the fiber prior to being drawn. The conditioning solution has concentrations of solvent, salt, and water so that the fiber is plasticized to the extent necessary for drawing but does not plasticize the fiber to such an extent as to re-dissolve the fiber into a polymeric solution. A heat-treated fiber manufactured from this process has improved shrinkage and can be colored to darker shades.Type: GrantFiled: December 19, 2007Date of Patent: August 10, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Mark H. Headinger, David W. Luckey, Edgar N. Rudisill
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Patent number: 7771636Abstract: The invention relates to a continuous dry spinning process for preparing a fiber from a polymer solution having concentrations of polymer, salt, solvent and water. After the fiber is extruded and quenched, the fiber is placed in contact with a conditioning solution comprising concentrations of solvent, salt, and water. The conditioning solution acts upon the fiber to plasticize the fiber prior to being drawn. The conditioning solution has concentrations of solvent, salt, and water so that the fiber is plasticized to the extent necessary for drawing but does not plasticize the fiber to such an extent as to re-dissolve the fiber into a polymeric solution. A heat-treated fiber manufactured from this process has improved shrinkage and can be colored to darker shades.Type: GrantFiled: December 19, 2007Date of Patent: August 10, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Mark H. Headinger, Edgar N. Rudisill, David W. Luckey
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Patent number: 7771637Abstract: The invention relates to a continuous dry spinning process for preparing a fiber from a polymer solution having concentrations of polymer, salt, solvent and water. After the fiber is extruded and quenched, the fiber is placed in contact with a conditioning solution comprising concentrations of solvent, salt, and water. The conditioning solution acts upon the fiber to plasticize the fiber prior to being drawn. The conditioning solution has concentrations of solvent, salt, and water so that the fiber is plasticized to the extent necessary for drawing but does not plasticize the fiber to such an extent as to re-dissolve the fiber into a polymeric solution. A heat-treated fiber manufactured from this process has improved shrinkage and can be colored to darker shades.Type: GrantFiled: December 19, 2007Date of Patent: August 10, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Mark H. Headinger, Edgar N. Rudisill, David W. Luckey
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Publication number: 20090160081Abstract: The invention relates to a continuous dry spinning process for preparing a fiber from a polymer solution having concentrations of polymer, salt, solvent and water. After the fiber is extruded and quenched, the fiber is placed in contact with a conditioning solution comprising concentrations of solvent, salt, and water. The conditioning solution acts upon the fiber to plasticize the fiber prior to being drawn. The conditioning solution has concentrations of solvent, salt, and water so that the fiber is plasticized to the extent necessary for drawing but does not plasticize the fiber to such an extent as to re-dissolve the fiber into a polymeric solution. A heat-treated fiber manufactured from this process has improved shrinkage and can be colored to darker shades.Type: ApplicationFiled: December 19, 2007Publication date: June 25, 2009Inventors: Mark H. Headinger, Edgar N. Rudisill, David W. Luckey
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Publication number: 20090160082Abstract: The invention relates to a continuous dry spinning process for preparing a fiber from a polymer solution having concentrations of polymer, salt, solvent and water. After the fiber is extruded and quenched, the fiber is placed in contact with a conditioning solution comprising concentrations of solvent, salt, and water. The conditioning solution acts upon the fiber to plasticize the fiber prior to being drawn. The conditioning solution has concentrations of solvent, salt, and water so that the fiber is plasticized to the extent necessary for drawing but does not plasticize the fiber to such an extent as to re-dissolve the fiber into a polymeric solution. A heat-treated fiber manufactured from this process has improved shrinkage and can be colored to darker shades.Type: ApplicationFiled: December 19, 2007Publication date: June 25, 2009Inventors: Mark H. Headinger, Edgar N. Rudisill, David W. Luckey
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Publication number: 20090160079Abstract: The invention relates to a continuous dry spinning process for preparing a fiber from a polymer solution having concentrations of polymer, salt, solvent and water. After the fiber is extruded and quenched, the fiber is placed in contact with a conditioning solution comprising concentrations of solvent, salt, and water. The conditioning solution acts upon the fiber to plasticize the fiber prior to being drawn. The conditioning solution has concentrations of solvent, salt, and water so that the fiber is plasticized to the extent necessary for drawing but does not plasticize the fiber to such an extent as to re-dissolve the fiber into a polymeric solution. A heat-treated fiber manufactured from this process has improved shrinkage and can be colored to darker shades.Type: ApplicationFiled: December 19, 2007Publication date: June 25, 2009Inventors: Mark H. Headinger, Edgar N. Rudisill, David W. Luckey
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Publication number: 20090160080Abstract: The invention relates to a continuous dry spinning process for preparing a fiber from a polymer solution having concentrations of polymer, salt, solvent and water. After the fiber is extruded and quenched, the fiber is placed in contact with a conditioning solution comprising concentrations of solvent, salt, and water. The conditioning solution acts upon the fiber to plasticize the fiber prior to being drawn. The conditioning solution has concentrations of solvent, salt, and water so that the fiber is plasticized to the extent necessary for drawing but does not plasticize the fiber to such an extent as to re-dissolve the fiber into a polymeric solution. A heat-treated fiber manufactured from this process has improved shrinkage and can be colored to darker shades.Type: ApplicationFiled: December 19, 2007Publication date: June 25, 2009Inventors: Mark H. Headinger, Edgar N. Rudisill, David W. Luckey
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Publication number: 20090162655Abstract: The invention relates to a continuous dry spinning process for preparing a fiber from a polymer solution having concentrations of polymer, salt, solvent and water. After the fiber is extruded and quenched, the fiber is placed in contact with a conditioning solution comprising concentrations of solvent, salt, and water. The conditioning solution acts upon the fiber to plasticize the fiber prior to being drawn. The conditioning solution has concentrations of solvent, salt, and water so that the fiber is plasticized to the extent necessary for drawing but does not plasticize the fiber to such an extent as to re-dissolve the fiber into a polymeric solution. A heat-treated fiber manufactured from this process has improved shrinkage and can be colored to darker shades.Type: ApplicationFiled: December 19, 2007Publication date: June 25, 2009Inventors: Mark H. Headinger, Edgar N. Rudisill, David W. Luckey
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Patent number: 4971539Abstract: A device for coagulating a warp of filaments from a linear spinneret by delivering a transparent, jetted sheet of coagulating liquid equally and uniformly along each side of the warp.Type: GrantFiled: June 21, 1989Date of Patent: November 20, 1990Assignee: E. I. du Pont de Nemours and CompanyInventor: David W. Luckey
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Patent number: 4898704Abstract: Coagulating a warp of filaments from a linear spinneret by delivering a transparent, jetted sheet of coagulating liquid equally and uniformly along each side of the warp.Type: GrantFiled: August 30, 1988Date of Patent: February 6, 1990Assignee: E. I. Du Pont De Nemours & Co.Inventor: David W. Luckey