Patents by Inventor Christopher William Newton

Christopher William Newton 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).

  • Patent number: 11339508
    Abstract: A yarn comprising a plurality of bicomponent filaments having a first region comprising a first polymer composition and a second region comprising a second polymer composition, each of the first and second regions being distinct in the bicomponent filaments; each bicomponent filament comprising 5 to 60 weight percent of the first polymer composition and 95 to 40 weight percent of the second polymer composition; wherein the first polymer composition comprises aramid polymer containing 0.5 to 20 weight percent discrete homogeneously dispersed carbon particles and the second polymer composition comprises modacrylic polymer being free of discrete carbon particles; the yarn having a total content of 0.1 to 5 weight percent discrete carbon particles.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: May 24, 2022
    Assignee: DUPONT SAFETY & CONSTRUCTION, INC.
    Inventors: Mark William Andersen, Mark T. Aronson, Christopher William Newton, Thomas Wayne Steinruck, B. Lynne Wiseman, Reiyao Zhu
  • Patent number: 11279800
    Abstract: The present invention concerns yarn comprising polymer, the polymer comprising imidazole groups, the yarn having a sulfur content of 0.01 to 3.0 percent by weight, based on weight of the yarn, the yarn having a tenacity of 30 cN/dtex (33.3 gpd) or higher.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: March 22, 2022
    Assignee: DUPONT SAFETY & CONSTRUCTION, INC.
    Inventors: Christopher William Newton, David J. Rodini, Joseph Lenning Lowery, Steven R. Allen, Vlodek Gabara
  • Publication number: 20220025556
    Abstract: Processes for forming a yarn comprising a plurality of bicomponent filaments having a first region comprising a first polymer composition and a second region comprising a second polymer composition; the regions being distinct and present in the bicomponent filaments in a sheath-core structure or a side-by-side structure; wherein the first polymer composition comprises aramid polymer comprising 5 to 10 weight percent homogeneously dispersed discrete carbon particles and the second polymer composition comprises aramid polymer being free of discrete carbon particles and having at least one homogeneously dispersed masking pigment, the yarn having a total content of 0.5 to 5 weight percent discrete carbon particles.
    Type: Application
    Filed: April 5, 2021
    Publication date: January 27, 2022
    Inventors: Mark William Andersen, Mark T. Aronson, Christopher William Newton, Thomas Wayne Steinruck, B Lynne Wiseman, Reiyao Zhu
  • Patent number: 10982353
    Abstract: A yarn comprising a plurality of bicomponent filaments having a first region comprising a first polymer composition and a second region comprising a second polymer composition; the regions being distinct and present in the bicomponent filaments in a sheath-core structure or a side-by-side structure; wherein the first polymer composition comprises aramid polymer containing 0.5 to 20 weight percent homogeneously dispersed discrete carbon particles and the second polymer composition comprises aramid polymer being free of discrete carbon particles and having at least one homogeneously dispersed masking pigment, the yarn having a total content of 0.5 to 5 weight percent discrete carbon particles.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: April 20, 2021
    Assignee: DUPONT SAFETY & CONSTRUCTION, INC.
    Inventors: Mark William Andersen, Mark T. Aronson, Christopher William Newton, Thomas Wayne Steinruck, B Lynne Wiseman, Reiyao Zhu
  • Publication number: 20200165751
    Abstract: A yarn comprising a plurality of bicomponent filaments having a first region comprising a first polymer composition and a second region comprising a second polymer composition, each of the first and second regions being distinct in the bicomponent filaments; each bicomponent filament comprising 5 to 60 weight percent of the first polymer composition and 95 to 40 weight percent of the second polymer composition; wherein the first polymer composition comprises aramid polymer containing 0.5 to 20 weight percent discrete homogeneously dispersed carbon particles and the second polymer composition comprises modacrylic polymer being free of discrete carbon particles; the yarn having a total content of 0.1 to 5 weight percent discrete carbon particles.
    Type: Application
    Filed: January 31, 2020
    Publication date: May 28, 2020
    Inventors: Mark William Andersen, Mark T. Aronson, Christopher William Newton, Thomas Wayne Steinruck, B. Lynne Wiseman, Reiyao Zhu
  • Patent number: 10590567
    Abstract: A yarn comprising a plurality of bicomponent filaments having a first region comprising a first polymer composition and a second region comprising a second polymer composition, each of the first and second regions being distinct in the bicomponent filaments; each bicomponent filament comprising 5 to 60 weight percent of the first polymer composition and 95 to 40 weight percent of the second polymer composition; wherein the first polymer composition comprises aramid polymer containing 0.5 to 20 weight percent discrete homogeneously dispersed carbon particles and the second polymer composition comprises modacrylic polymer being free of discrete carbon particles; the yarn having a total content of 0.1 to 5 weight percent discrete carbon particles.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: March 17, 2020
    Assignee: DUPONT SAFETY & CONSTRUCTION, INC.
    Inventors: Mark William Andersen, Mark T. Aronson, Christopher William Newton, Thomas Wayne Steinruck, B Lynne Wiseman, Reiyao Zhu
  • Patent number: 10400082
    Abstract: The present invention concerns fiber made from a polymer comprising imidazole groups, fiber further having: i) a halide anion, the halide anion being present in an amount of 0.05 to 20.1 weight percent, based on weight of fiber; and ii) sulfur, wherein the sulfur is present in the fiber in an amount of 0.05 to 3 weight percent; the fiber exhibiting hydrochloric acid evolution as identified by TGA-IR between 277.13° C. to 448.19° C.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: September 3, 2019
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Steven R Allen, Vlodek Gabara, Joseph Lenning Lowery, Steven Raymond Lustig, Christopher William Newton, David J Rodini, Andrew J Sitter
  • Patent number: 10400357
    Abstract: The present invention concerns fiber made from a polymer comprising imidazole groups, the polymer further having: i) halide anions being present in an amount in the range of 0.05 to 20.1 weight percent, based on weight of fiber; ii) sulfur, wherein the sulfur is present in the fiber in an amount in the range of 0.05 to 3 weight percent, based on weight of fiber; and iii) alkali metal ion, wherein the alkali metal ion is present in the fiber in an amount in the range of 0.05 to 2 weight percent, based on weight of fiber, the fiber exhibiting hydrochloric acid evolution as identified by TGA-IR between 277.13° C. to 448.19° C.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: September 3, 2019
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Steven R Allen, Vlodek Gabara, Joseph Lenning Lowery, Christopher William Newton, David J Rodini, Andrew J Sitter
  • Patent number: 10240282
    Abstract: The present invention concerns methods for removing sulfur from yarn comprising the steps of: a) contacting never-dried polymeric yarn with an aqueous base, the polymer comprising imidazole groups and said polymer comprising sulfur atoms characterized as being in the form of sulfate anions; b) contacting the yarn with an aqueous acid comprising a halide; and c) rinsing the yarn.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: March 26, 2019
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Christopher William Newton, David J. Rodini, Andrew J. Sitter
  • Publication number: 20180245245
    Abstract: The present invention concerns fiber made from a polymer comprising imidazole groups, the polymer further having: i) halide anions being present in an amount in the range of 0.05 to 20.1 weight percent, based on weight of fiber; ii) sulfur, wherein the sulfur is present in the fiber in an amount in the range of 0.05 to 3 weight percent, based on weight of fiber; and iii) alkali metal ion, wherein the alkali metal ion is present in the fiber in an amount in the range of 0.05 to 2 weight percent, based on weight of fiber, the fiber exhibiting hydrochloric acid evolution as identified by TGA-IR between 277.13° C. to 448.19° C.
    Type: Application
    Filed: April 30, 2018
    Publication date: August 30, 2018
    Inventors: Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Christopher William Newton, David J. Rodini, Andrew J. Sitter
  • Publication number: 20180244891
    Abstract: The present invention concerns fiber made from a polymer comprising imidazole groups, fiber further having: i) a halide anion, the halide anion being present in an amount of 0.05 to 20.1 weight percent, based on weight of fiber; and ii) sulfur, wherein the sulfur is present in the fiber in an amount of 0.05 to 3 weight percent; the fiber exhibiting hydrochloric acid evolution as identified by TGA-IR between 277.13° C. to 448.19° C.
    Type: Application
    Filed: April 30, 2018
    Publication date: August 30, 2018
    Inventors: Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Steven Raymond Lustig, Christopher William Newton, David J. Rodini, Andrew J. Sitter
  • Patent number: 9994974
    Abstract: The present invention concerns fiber made from a polymer comprising imidazole groups, the polymer further having: i) halide anions being present in an amount in the range of 0.05 to 20.1 weight percent, based on weight of fiber; ii) sulfur, wherein the sulfur is present in the fiber in an amount in the range of 0.05 to 3 weight percent, based on weight of fiber; and iii) alkali metal ion, wherein the alkali metal ion is present in the fiber in an amount in the range of 0.05 to 2 weight percent, based on weight of fiber.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: June 12, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Christopher William Newton, David J. Rodini, Andrew J. Sitter
  • Patent number: 9988514
    Abstract: The present invention concerns fiber made from a polymer comprising imidazole groups, fiber further having: i) a halide anion, the halide anion being present in an amount of 0.05 to 20.1 weight percent, based on weight of fiber; and ii) sulfur, wherein the sulfur is present in the fiber in an amount of 0.05 to 3 weight percent.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: June 5, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Steven Raymond Lustig, Christopher William Newton, David J. Rodini, Andrew J. Sitter
  • Publication number: 20180057969
    Abstract: A yarn comprising a plurality of bicomponent filaments having a first region comprising a first polymer composition and a second region comprising a second polymer composition, each of the first and second regions being distinct in the bicomponent filaments; each bicomponent filament comprising 5 to 60 weight percent of the first polymer composition and 95 to 40 weight percent of the second polymer composition; wherein the first polymer composition comprises aramid polymer containing 0.5 to 20 weight percent discrete homogeneously dispersed carbon particles and the second polymer composition comprises modacrylic polymer being free of discrete carbon particles; the yarn having a total content of 0.1 to 5 weight percent discrete carbon particles.
    Type: Application
    Filed: August 4, 2017
    Publication date: March 1, 2018
    Inventors: Mark William Andersen, Mark T. Aronson, Christopher William Newton, Thomas Wayne Steinruck, B. Lynne Wiseman, Reiyao Zhu
  • Publication number: 20180057964
    Abstract: A yarn comprising a plurality of bicomponent filaments having a first region comprising a first polymer composition and a second region comprising a second polymer composition; the regions being distinct and present in the bicomponent filaments in a sheath-core structure or a side-by-side structure; wherein the first polymer composition comprises aramid polymer containing 0.5 to 20 weight percent homogeneously dispersed discrete carbon particles and the second polymer composition comprises aramid polymer being free of discrete carbon particles and having at least one homogeneously dispersed masking pigment, the yarn having a total content of 0.5 to 5 weight percent discrete carbon particles.
    Type: Application
    Filed: August 4, 2017
    Publication date: March 1, 2018
    Inventors: MARK WILLIAM ANDERSEN, MARK T. ARONSON, CHRISTOPHER WILLIAM NEWTON, THOMAS WAYNE STEINRUCK, B. LYNNE WISEMAN, REIYAO ZHU
  • Patent number: 9903051
    Abstract: The present invention concerns processes for reducing water in never-dried fiber comprising copolymer derived from the copolymerization of para-phenylenediamine, 5(6)-amino-2-(p-aminophenyl)benzimidazole; and terephthaloyl dichloride, the process having the following steps in a continuous process, (a) a step of drying a never-dried fiber at less than 100 C until the moisture content of the fiber is less than 60 weight percent; and (b) a step of further drying the fiber above 150° C. while the moisture content of the fiber is no more than 40 weight percent; and the fiber being further heated to at least 350° C. in either an additional continuous or separate step.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: February 27, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Steven R. Allen, Christopher William Newton
  • Patent number: 9845553
    Abstract: The present invention concerns methods for removing sulfur from yarn comprising the steps of: a) contacting never-dried polymeric yarn with an aqueous base, the polymer comprising imidazole groups and said polymer comprising sulfur atoms characterized as being in the form of sulfate anions; b) contacting the yarn with an aqueous acid solution of pH 5 or lower; and c) rinsing the yarn.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: December 19, 2017
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Christopher William Newton, David J. Rodini, Andrew J. Sitter
  • Patent number: 9797070
    Abstract: An intimate blend of staple fibers, and a yarn, fabric, and article of clothing providing surprising arc performance and coloration capability, comprising a mixture of a first staple fiber made from a flame resistant polymer that retains at least 90 percent of its weight when heated to 425 degrees Celsius at a rate of 10 degrees per minute and comprises 0.5 to 20 weight percent discrete homogeneously dispersed carbon particles; and either (a) a second staple fiber from a flame resistant polymer being free of discrete carbon particles and having an L* lightness coordinate of 70 or greater and being capable of accepting a dye or coloration, or (b) a second staple fiber blend being free of discrete carbon particles and comprising at least one second staple fiber from a flame resistant polymer and having an L* lightness coordinate of 70 or greater and being capable of accepting a dye or coloration; the mixture having a total content of 0.5 to 3 weight percent discrete carbon particles.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: October 24, 2017
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Christopher William Newton, Reiyao Zhu
  • Patent number: 9790622
    Abstract: The present invention concerns methods for obtaining high-tenacity aramid yarn, wherein the yarn is made of a copolymer obtained from a mixture of monomers comprising 5-(6)-amino-2-(p-aminophenyl)benzimidazole, an aromatic para-diamine, and an aromatic para-diacid; the method comprising: a) spinning said copolymer from an inorganic acid solvent to produce the aramid yarn; b) washing said yarn with a basic aqueous solution for at least 5 seconds; and c) heating said yarn; wherein the yarn is heated in at least two process steps, characterized in that (i) in a first step the yarn is heated at a temperature of 200 to 360° C. at a tension of at least 0.2 cN/dtex, followed by (ii) a second step wherein the yarn is heated at a temperature of 370 to 500° C. at a tension of less than 1 cN/dtex. In some embodiments, the yarn has an effective polymer cation to sulfur content molar ratio of at least 0.3. In some embodiments, the yarn has a hydrolytic strength retention of the yarn is greater than 60%.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: October 17, 2017
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Warren Francis Knoff, Christopher William Newton
  • Patent number: 9732442
    Abstract: 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.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: August 15, 2017
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Steven Raymond Lustig, Christopher William Newton, David J. Rodini, Andrew J. Sitter