Patents by Inventor Qingwen Li
Qingwen Li 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: 11970355Abstract: The present disclosure relates to a collection device and a preparation system, including a pre-adjustment mechanism which is disposed in a housing and configured to adjust at least one bundle of carbon nanotube aggregates, and includes a first pre-adjustment sub-mechanism and a second pre-adjustment sub-mechanism for adjusting carbon nanotube aggregations along a first direction and a second direction, respectively; a winding mechanism for winding and collecting the carbon nanotube aggregates passing through the pre-adjustment mechanism.Type: GrantFiled: March 26, 2018Date of Patent: April 30, 2024Assignee: SUZHOU JERNANO CARBON CO., LTD.Inventors: Da Li, Hehua Jin, Qingwen Li, Zhenzhong Yong, Maolin Liu, Dianli Hu
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Patent number: 11639306Abstract: The present disclosure relates to a curved glass thermal forming device and method. The curved glass thermal forming device includes a furnace body having a feed port and a discharge port, wherein the furnace body includes a heating segment, a forming segment and a cooling segment, a rotary table capable of rotating and used for circularly conveying glass to the heating segment, the forming segment and the cooling segment in sequence is arranged in the furnace body, a plurality of female dies for carrying glass are arranged on the rotary table so as to cooperate with a male die in the forming segment to perform press fit forming on the glass.Type: GrantFiled: May 24, 2018Date of Patent: May 2, 2023Assignees: TUNGHSU TECHNOLOGY GROUP CO., LTD., TUNGHSU GROUP CO., LTD.Inventors: Qing Li, Qingwen Li, Xianyou Jin, Zhaoting Li
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Patent number: 11225581Abstract: A carbon nanotube aligned film as well as a preparation method and application thereof are disclosed. The preparation method includes: providing a carbon nanotube dispersion solution comprising a selected carbon nanotube, a polymer as a carbon nanotube dispersing agent and binding to the selected carbon nanotube, an aromatic molecule binding to the selected carbon nanotube and allowing the surface of the selected carbon nanotube to have the same charges and an organic solvent being at least used for cooperating with the rest components of the dispersion solution to form uniform dispersion solution; and introducing a water phase layer to the upper surface of the dispersion solution to form a double-layer liquid phase system, partially or completely inserting a base into the double-layer liquid system, and then pulling out the base so as to form the carbon nanotube aligned film on the surface of the base.Type: GrantFiled: October 16, 2018Date of Patent: January 18, 2022Assignee: SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS (SINANO), CHINESE ACADEMY OF SCIENCESInventors: Bing Gao, Song Qiu, Hehua Jin, Qingwen Li
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Publication number: 20210309867Abstract: A carbon nanotube aligned film as well as a preparation method and application thereof are disclosed. The preparation method includes: providing a carbon nanotube dispersion solution comprising a selected carbon nanotube, a polymer as a carbon nanotube dispersing agent and binding to the selected carbon nanotube, an aromatic molecule binding to the selected carbon nanotube and allowing the surface of the selected carbon nanotube to have the same charges and an organic solvent being at least used for cooperating with the rest components of the dispersion solution to form uniform dispersion solution; and introducing a water phase layer to the upper surface of the dispersion solution to form a double-layer liquid phase system, partially or completely inserting a base into the double-layer liquid system, and then pulling out the base so as to form the carbon nanotube aligned film on the surface of the base.Type: ApplicationFiled: October 16, 2018Publication date: October 7, 2021Applicant: SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS (SINANO), CHINESE ACADEMY OF SCIENCESInventors: Bing GAO, Song QIU, Hehua JIN, Qingwen LI
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Publication number: 20210163252Abstract: The present disclosure relates to a collection device and a preparation system, including a pre-adjustment mechanism which is disposed in a housing and configured to adjust at least one bundle of carbon nanotube aggregates, and includes a first pre-adjustment sub-mechanism and a second pre-adjustment sub-mechanism for adjusting carbon nanotube aggregations along a first direction and a second direction, respectively; a winding mechanism for winding and collecting the carbon nanotube aggregates passing through the pre-adjustment mechanism.Type: ApplicationFiled: March 26, 2018Publication date: June 3, 2021Inventors: Da LI, Hehua JIN, Qingwen LI, Zhenzhong YONG, Maolin LIU, Dianli HU
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Publication number: 20210025055Abstract: The disclosure relates to a carbon nanotube preparation system, comprising: a pre-growth tube for an early pre-reaction of raw materials before generation of carbon nanotubes; an atomizer for atomizing the carbon nanotube raw materials and then spraying the atomized raw materials into the pre-growth tube; the atomizer is provided at the front end of the pre-growth tube, and has a spray output tube that extends into the pre-growth tube; a growth tube for generating carbon nanotubes and continuous growth of the generated carbon nanotubes; the front end of the growth tube is hermetically connected to the rear end of the pre-growth tube; and an air curtain generator for forming an air curtain enclosing an atomizing air flow around the outlet of the spray output tube, and the air curtain extends parallel to the extension direction of the pre-growth tube; the air curtain generator is provided inside the pre-growth tube.Type: ApplicationFiled: March 26, 2018Publication date: January 28, 2021Inventors: Zhenzhong YONG, Qingwen LI, Hehua JIN, Da LI, Zhi LI
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Patent number: 10676361Abstract: The disclosure discloses a method and reagent for improving a yield of selective dispersion of semiconducting carbon nanotubes.Type: GrantFiled: April 28, 2017Date of Patent: June 9, 2020Assignee: Suzhou Institute of Nano-Tech and Nano-Bionics (Sinano), Chinese Academy of SciencesInventors: Qingwen Li, Dan Liu, Song Qiu, Jin Zhang, Hehua Jin, Hongbo Li
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Publication number: 20200109077Abstract: The present disclosure relates to a curved glass thermal forming device and method. The curved glass thermal forming device includes a furnace body having a feed port and a discharge port, wherein the furnace body includes a heating segment, a forming segment and a cooling segment, a rotary table capable of rotating and used for circularly conveying glass to the heating segment, the forming segment and the cooling segment in sequence is arranged in the furnace body, a plurality of female dies for carrying glass are arranged on the rotary table so as to cooperate with a male die in the forming segment to perform press fit forming on the glass.Type: ApplicationFiled: May 24, 2018Publication date: April 9, 2020Applicants: TUNGHSU TECHNOLOGY GROUP CO., LTD, TUNGHSU GROUP CO., LTD.Inventors: Qing LI, Qingwen LI, Xianyou JIN, Zhaoting LI
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Publication number: 20190218100Abstract: The disclosure discloses a method and reagent for improving a yield of selective dispersion of semiconducting carbon nanotubes.Type: ApplicationFiled: April 28, 2017Publication date: July 18, 2019Applicant: Suzhou Institute of Nano-Tech and Nano-Bionics (Sinano), Chinese Academy of SciencesInventors: Qingwen LI, Dan LIU, Song QIU, Jin ZHANG, Hehua JIN, Hongbo LI
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Publication number: 20190039350Abstract: The invention discloses the application of carbon nanotube assemblies to the preparation of a nanocarbon impact-resistant material. The carbon nanotube assembly is a macrostructure provided with at least one continuous surface, a plurality of carbon nanotubes are densely distributed in the continuous surface, and at least partial segments of at least part of the multiple carbon nanotubes continuously extend in the continuous surface. The invention further discloses a preparation method of the nanocarbon impact-resistant material. The nanocarbon impact-resistant material has an excellent protection effect, has the advantages of being light, good in flexibility, wide in tolerable temperature range, capable of being bent freely, good in fitness, breathable, adaptable to heat-moisture balance of human bodies, good in wearing comfort and the like, and can be widely applied to bullet-proof materials, stab-proof materials and explosion-proof materials.Type: ApplicationFiled: January 9, 2017Publication date: February 7, 2019Inventors: Dongmei Hu, Qingwen Li
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Patent number: 9290387Abstract: A structure for preparing an substantially aligned array of carbon nanotubes include a substrate having a first side and a second side, a buffer layer on the first side of the substrate, a catalyst on the buffer layer, and a plurality of channels through the structure for allowing a gaseous carbon source to enter the substrate at the second side and flow through the structure to the catalyst. After preparing the array, a fiber of carbon nanotubes may be spun from the array. Prior to spinning, the array can be immersed in a polymer solution. After spinning, the polymer can be cured.Type: GrantFiled: August 28, 2007Date of Patent: March 22, 2016Assignee: Los Alamos National Security, LLCInventors: Yuntian T. Zhu, Paul Arendt, Qingwen Li, Xiefie Zhang
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Publication number: 20150040532Abstract: A fiber of carbon nanotubes was prepared by a wet-spinning method involving drawing carbon nanotubes away from a substantially aligned, supported array of carbon nanotubes to form a ribbon, wetting the ribbon with a liquid, and spinning a fiber from the wetted ribbon. The liquid can be a polymer solution and after forming the fiber, the polymer can be cured. The resulting fiber has a higher tensile strength and higher conductivity compared to dry-spun fibers and to wet-spun fibers prepared by other methods.Type: ApplicationFiled: April 29, 2014Publication date: February 12, 2015Inventors: Yuntian T. Zhu, Paul Arendt, Xiefel Zhang, Qingwen Li, Lei Fu, Lianxi Zheng
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Patent number: 8709372Abstract: A fiber of carbon nanotubes was prepared by a wet-spinning method involving drawing carbon nanotubes away from a substantially aligned, supported array of carbon nanotubes to form a ribbon, wetting the ribbon with a liquid, and spinning a fiber from the wetted ribbon. The liquid can be a polymer solution and after forming the fiber, the polymer can be cured. The resulting fiber has a higher tensile strength and higher conductivity compared to dry-spun fibers and to wet-spun fibers prepared by other methods.Type: GrantFiled: October 2, 2008Date of Patent: April 29, 2014Assignee: Los Alamos National Security, LLCInventors: Yuntian T. Zhu, Paul Arendt, Xiefei Zhang, Qingwen Li, Lei Fu, Lianxi Zheng
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Patent number: 8487028Abstract: Carbon nanotubes were prepared by coating a substrate with a coating solution including a suitable solvent, a soluble polymer, a metal precursor having a first metal selected from iron, nickel, cobalt, and molybdenum, and optionally a second metal selected from aluminum and magnesium, and also a binding agent that forms a complex with the first metal and a complex with the second metal. The coated substrate was exposed to a reducing atmosphere at elevated temperature, and then to a hydrocarbon in the reducing atmosphere. The result was decomposition of the polymer and formation of carbon nanotubes on the substrate. The carbon nanotubes were often in the form of an array on the substrate.Type: GrantFiled: August 20, 2012Date of Patent: July 16, 2013Assignee: Los Alamos National Security, LLCInventors: Hongmei Luo, Qingwen Li, Eve Bauer, Anthony Keiran Burrell, Thomas Mark McCleskey, Quanxi Jia
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Publication number: 20130089663Abstract: Carbon nanotubes were prepared by coating a substrate with a coating solution including a suitable solvent, a soluble polymer, a metal precursor having a first metal selected from iron, nickel, cobalt, and molybdenum, and optionally a second metal selected from aluminum and magnesium, and also a binding agent that forms a complex with the first metal and a complex with the second metal. The coated substrate was exposed to a reducing atmosphere at elevated temperature, and then to a hydrocarbon in the reducing atmosphere. The result was decomposition of the polymer and formation of carbon nanotubes on the substrate. The carbon nanotubes were often in the form of an array on the substrate.Type: ApplicationFiled: August 20, 2012Publication date: April 11, 2013Applicant: LOS ALAMOS NATIONAL SECURITY, LLCInventors: Hongmei Luo, Qingwen Li, Eve Bauer, Anthony Keiran Burrell, Thomas Mark McCleskey, Quanxi Jia
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Patent number: 8278380Abstract: Carbon nanotubes were prepared by coating a substrate with a coating solution including a suitable solvent, a soluble polymer, a metal precursor having a first metal selected from iron, nickel, cobalt, and molybdenum, and optionally a second metal selected from aluminum and magnesium, and also a binding agent that forms a complex with the first metal and a complex with the second metal. The coated substrate was exposed to a reducing atmosphere at elevated temperature, and then to a hydrocarbon in the reducing atmosphere. The result was decomposition of the polymer and formation of carbon nanotubes on the substrate. The carbon nanotubes were often in the form of an array on the substrate.Type: GrantFiled: December 23, 2009Date of Patent: October 2, 2012Assignee: Los Alamos National Security, LLCInventors: Hongmei Luo, Qingwen Li, Eve Bauer, Anthony Keiran Burrell, Thomas Mark McCleskey, Quanxi Jia
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Publication number: 20110034600Abstract: Carbon nanotubes were prepared by coating a substrate with a coating solution including a suitable solvent, a soluble polymer, a metal precursor having a first metal selected from iron, nickel, cobalt, and molybdenum, and optionally a second metal selected from aluminum and magnesium, and also a binding agent that forms a complex with the first metal and a complex with the second metal. The coated substrate was exposed to a reducing atmosphere at elevated temperature, and then to a hydrocarbon in the reducing atmosphere. The result was decomposition of the polymer and formation of carbon nanotubes on the substrate. The carbon nanotubes were often in the form of an array on the substrate.Type: ApplicationFiled: December 23, 2009Publication date: February 10, 2011Applicant: LOS ALAMOS NATIONAL SECURITY, LLCInventors: Hongmei Luo, Qingwen Li, Eve Bauer, Anthony Keiran Burrell, Thomas Mark McCleskey, Quanxi Jia
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Publication number: 20090208742Abstract: A fiber of carbon nanotubes was prepared by a wet-spinning method involving drawing carbon nanotubes away from a substantially aligned, supported array of carbon nanotubes to form a ribbon, wetting the ribbon with a liquid, and spinning a fiber from the wetted ribbon. The liquid can be a polymer solution and after forming the fiber, the polymer can be cured. The resulting fiber has a higher tensile strength and higher conductivity compared to dry-spun fibers and to wet-spun fibers prepared by other methods.Type: ApplicationFiled: October 2, 2008Publication date: August 20, 2009Inventors: Yuntian T. Zhu, Paul Arendt, Xiefei Zhang, Qingwen Li, Lei Fu, Lianxi Zheng
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Publication number: 20090136751Abstract: A structure for preparing an substantially aligned array of carbon nanotubes include a substrate having a first side and a second side, a buffer layer on the first side of the substrate, a catalyst on the buffer layer, and a plurality of channels through the structure for allowing a gaseous carbon source to enter the substrate at the second side and flow through the structure to the catalyst. After preparing the array, a fiber of carbon nanotubes may be spun from the array. Prior to spinning, the array can be immersed in a polymer solution. After spinning, the polymer can be cured.Type: ApplicationFiled: August 28, 2007Publication date: May 28, 2009Inventors: Yuntian T. Zhu, Paul Arendt, Qingwen Li, Xiefie Zhang
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Publication number: 20070116631Abstract: An array of long carbon nanotubes (i.e. an array where the average length of the nanotubes is greater than 0.5 millimeters) is prepared by exposing a supported catalyst at elevated temperature to a gas mixture of hydrocarbon, inert gas, and a relatively low percentage of hydrogen. Addition of water vapor to the gas mixture may result in an increase in the length of the nanotubes, an increase the rate of growth, and a decrease in contamination of the array by amorphous carbon. The temperature and growth time are also chosen to minimize the amount of amorphous carbon that forms on the array. Fibers spun from the array have a higher tensile strength compared to known CNT fibers.Type: ApplicationFiled: May 1, 2006Publication date: May 24, 2007Inventors: Qingwen Li, Yuntian Zhu, Paul Arendt, Raymond DePaula, James Groves