Process for preparing aramid copolymer yarn having low residual sulfur
Patent No. 9,732,442
The present invention concerns methods for producing a yarn comprising the steps of: (a) producing a plurality of dope filaments by spinning a polymer solution in sulfuric acid through a multi-hole spinneret, the polymer comprising imidazole groups; (b) coagulating the plurality of dope filaments into an as-spun yarn; (c) contacting the yarn with an aqueous base having a pKa less than or equal to 11; and (d) rinsing the yarn.
Inventors: Steven R. Allen (Midlothian, Va.), Vlodek Gabara (Richmond), Joseph Lenning Lowery (Midlothian, Va.), Steven Raymond Lustig (Landenberg, Penn.), Christopher William Newton (Richmond), David J. Rodini (Midlothian, Va.), Andrew J. Sitter (Mechanicsville, Va.)
Assignee: E I Du Pont De Nemours and Co. (Wilmington, Del.)
Aug. 15, 2017
Composite separator for electrochemical cell capable of sustained shutdown
Patent No. 9,735,410
This invention provides a multi-layer article comprising a first electrode material, a second electrode material, and a porous separator disposed between and in contact with the first and the second electrode materials, wherein the porous separator comprises a nonwoven consisting essentially of a plurality of fibers of a fully aromatic polyimide. Also provided is a method for preparing the multi-layer article, and an electrochemical cell employing the same. A multi-layer article comprising a polyimide nonwoven with enhanced properties is also provided.
Inventors: Pankaj Arora (Chesterfield, Va.), Natalia V. Levit (Glen Allen, Va.)
Assignee: E I Du Pont De Nemours and Co. (Wilmington, Del.)
Aug. 15, 2017
Basecoat and associated paperboard structure
Patent No. 9,732,473
A basecoat including a pigment blend that includes a ground calcium carbonate component and a hyperplaty clay component, wherein the ground calcium carbonate component has a coarse particle size distribution, and wherein the hyperplaty clay component has an average aspect ratio of at least 40:1.
Inventors: Gary P. Fugitt (Rockville, Va.), Steven G. Bushhouse (Quinton, Va.), Jason R. Hogan (Glen Allen, Va.), Wei-Hwa Her (Beaumont, Texas)
Assignee: WestRock MWV (Norcross, Ga.)
Aug. 15, 2017
Multidirectional fiber-reinforced tape/film articles and the method of making the same
Patent No. 9,731,454
High tenacity, high elongation multi-filament polymeric tapes as well as ballistic resistant fabrics, composites and articles made therefrom. The tapes are fabricated from multi-filament fibers/yarns that are twisted together, bonded together, compressed and flattened.
Inventors: Thomas Tam (Chesterfield, Va.), Mark Benjamin Boone (Midlothian, Va.)
Assignee: Honeywell International Inc. (Morris Plains, N.J.)
Aug. 15, 2017
Oil detection process and apparatus
9,733,197
A process for detecting oil or lubricant contamination in a manufactured product, the process comprising adding a fluorescent taggant to oils or lubricants contained in processing machinery for said product, conveying said product past an infrared detection apparatus, irradiating said product with infrared radiation from said detection apparatus as it passes the detection apparatus, and detecting infrared radiation emitted from said irradiated product.
Inventors: Edmond J. Cadieux Jr. (Mechanicsville, Va.), William James Faenza (Andreas, Penn.)
Assignee: Altria Client Services (Richmond)
Aug. 15, 2017
Hybrid compounds of curcumin and melatonin as neuroprotectants for neurodegenerative disorders
Patent No. 9,738,605
Hybrid compounds of curcumin and melatonin as neuroprotectants are provided. The hybrid compounds are useful for the treatment and/or prevention of Alzheimer’s disease (AD), as well as other neurodegenerative diseases. The hybrid compounds exhibited superior and potent neuroprotection in an AD model.
Inventors: Shijun Zhang (Richmond)
Assignee: Virginia Commonwealth University (Richmond)
Aug. 22, 2017
Devices, systems and methods for medicament delivery
Patent No. 9,737,669
Apparatuses for automatic medicament injection and methods for manufacturing automatic medicament injectors are described herein. In some embodiments, an apparatus includes a housing, a needle, an energy storage member, an actuator, a locking member, and a needle guard. The needle is configured to move between a first position and a second position. In its first position, the needle is contained within the housing. In its second position, at least a portion of the needle extends from the housing. The energy storage member has a first configuration and a second configuration and is configured to produce a force when moving between its first configuration and its second configuration to move the needle from its first position to its second position. The actuator is configured to move the energy storage member from its first configuration to its second configuration. The locking member is movably coupled to the distal end portion of the housing such that the locking member can be moved between a first position and a second position. In its first position, the locking member is configured to engage the actuator to prevent the actuator from moving the energy storage member to the second configuration. The needle guard is removably coupled to at least one of the distal end portion of the housing or a base movably coupled to the distal end portion of the housing.
Inventors: Eric S. Edwards (Moseley, Va.), Evan T. Edwards (Charlottesville, Va.), Mark J. Licata (Doswell, Va.), Paul F. Meyers (Fishers, Ind.)
Assignee: kaleo Inc. (Richmond)
Aug. 22, 2017
Process for preparing aramid copolymer yarn having low residual sulfur
Patent No. 9,732,442
The present invention concerns methods for producing a yarn comprising the steps of: (a) producing a plurality of dope filaments by spinning a polymer solution in sulfuric acid through a multi-hole spinneret, the polymer comprising imidazole groups; (b) coagulating the plurality of dope filaments into an as-spun yarn; (c) contacting the yarn with an aqueous base having a pKa less than or equal to 11; and (d) rinsing the yarn.
Inventors: Steven R. Allen (Midlothian, Va.), Vlodek Gabara (Richmond), Joseph Lenning Lowery (Midlothian, Va.), Steven Raymond Lustig (Landenberg, Penn.), Christopher William Newton (Richmond), David J. Rodini (Midlothian, Va.), Andrew J. Sitter (Mechanicsville, Va.)
Assignee: E I Du Pont De Nemours and Co. (Wilmington, Del.)
Aug. 15, 2017
Composite separator for electrochemical cell capable of sustained shutdown
Patent No. 9,735,410
This invention provides a multi-layer article comprising a first electrode material, a second electrode material, and a porous separator disposed between and in contact with the first and the second electrode materials, wherein the porous separator comprises a nonwoven consisting essentially of a plurality of fibers of a fully aromatic polyimide. Also provided is a method for preparing the multi-layer article, and an electrochemical cell employing the same. A multi-layer article comprising a polyimide nonwoven with enhanced properties is also provided.
Inventors: Pankaj Arora (Chesterfield, Va.), Natalia V. Levit (Glen Allen, Va.)
Assignee: E I Du Pont De Nemours and Co. (Wilmington, Del.)
Aug. 15, 2017
Basecoat and associated paperboard structure
Patent No. 9,732,473
A basecoat including a pigment blend that includes a ground calcium carbonate component and a hyperplaty clay component, wherein the ground calcium carbonate component has a coarse particle size distribution, and wherein the hyperplaty clay component has an average aspect ratio of at least 40:1.
Inventors: Gary P. Fugitt (Rockville, Va.), Steven G. Bushhouse (Quinton, Va.), Jason R. Hogan (Glen Allen, Va.), Wei-Hwa Her (Beaumont, Texas)
Assignee: WestRock MWV (Norcross, Ga.)
Aug. 15, 2017
Multidirectional fiber-reinforced tape/film articles and the method of making the same
Patent No. 9,731,454
High tenacity, high elongation multi-filament polymeric tapes as well as ballistic resistant fabrics, composites and articles made therefrom. The tapes are fabricated from multi-filament fibers/yarns that are twisted together, bonded together, compressed and flattened.
Inventors: Thomas Tam (Chesterfield, Va.), Mark Benjamin Boone (Midlothian, Va.)
Assignee: Honeywell International Inc. (Morris Plains, N.J.)
Aug. 15, 2017
Oil detection process and apparatus
9,733,197
A process for detecting oil or lubricant contamination in a manufactured product, the process comprising adding a fluorescent taggant to oils or lubricants contained in processing machinery for said product, conveying said product past an infrared detection apparatus, irradiating said product with infrared radiation from said detection apparatus as it passes the detection apparatus, and detecting infrared radiation emitted from said irradiated product.
Inventors: Edmond J. Cadieux Jr. (Mechanicsville, Va.), William James Faenza (Andreas, Penn.)
Assignee: Altria Client Services (Richmond)
Aug. 15, 2017
Hybrid compounds of curcumin and melatonin as neuroprotectants for neurodegenerative disorders
Patent No. 9,738,605
Hybrid compounds of curcumin and melatonin as neuroprotectants are provided. The hybrid compounds are useful for the treatment and/or prevention of Alzheimer’s disease (AD), as well as other neurodegenerative diseases. The hybrid compounds exhibited superior and potent neuroprotection in an AD model.
Inventors: Shijun Zhang (Richmond)
Assignee: Virginia Commonwealth University (Richmond)
Aug. 22, 2017
Devices, systems and methods for medicament delivery
Patent No. 9,737,669
Apparatuses for automatic medicament injection and methods for manufacturing automatic medicament injectors are described herein. In some embodiments, an apparatus includes a housing, a needle, an energy storage member, an actuator, a locking member, and a needle guard. The needle is configured to move between a first position and a second position. In its first position, the needle is contained within the housing. In its second position, at least a portion of the needle extends from the housing. The energy storage member has a first configuration and a second configuration and is configured to produce a force when moving between its first configuration and its second configuration to move the needle from its first position to its second position. The actuator is configured to move the energy storage member from its first configuration to its second configuration. The locking member is movably coupled to the distal end portion of the housing such that the locking member can be moved between a first position and a second position. In its first position, the locking member is configured to engage the actuator to prevent the actuator from moving the energy storage member to the second configuration. The needle guard is removably coupled to at least one of the distal end portion of the housing or a base movably coupled to the distal end portion of the housing.
Inventors: Eric S. Edwards (Moseley, Va.), Evan T. Edwards (Charlottesville, Va.), Mark J. Licata (Doswell, Va.), Paul F. Meyers (Fishers, Ind.)
Assignee: kaleo Inc. (Richmond)
Aug. 22, 2017