公开(公告)号：US20210388533A1

公开(公告)日：2021-12-16

申请号：US17282435

申请日：2019-10-04

申请人： North Carolina State University

发明人： Ericka N. FORD ,  Ryan DWYER ,  Hannah DEDMON

IPC分类号： D01F1/10 ,  D01D1/02 ,  D01D5/06 ,  D01D10/02 ,  D01F2/28 ,  D01F2/02

摘要： Strengthening the dry and wet tenacity of regenerated cellulosic fibers can be performed through the addition of an aldaric acid, such as (but not limited to) glucaric acid. In some embodiments, regenerated cellulosic fibers that include an aldaric acid or a salt thereof, produced by the disclosed methods are also described. The produced fibers have advantageous properties due at least in part to the inclusion of the aldaric acid.

公开(公告)号：US11174575B2

公开(公告)日：2021-11-16

申请号：US17051442

申请日：2019-10-28

申请人： JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

发明人： Fangming Tang ,  Shanshui Wang ,  Damao Yang

IPC分类号： C07C29/141 ,  C07C29/145 ,  D01D5/08 ,  D01D7/00 ,  D01F6/62 ,  D02J1/22 ,  D02J13/00 ,  D01F6/92 ,  C08G63/183 ,  C08G63/86 ,  D01D5/088 ,  D01D5/16 ,  D01D10/02 ,  D01F1/10

摘要： A type of high-modulus-low-shrinkage activated PET industrial yarn and preparing method thereof are disclosed. The preparing method is to manufacture filament from a modified polyester, which is the product of the esterification and the successive polycondensation reactions of evenly mixed terephthalic acid, ethylene glycol and tert-butyl branched heptanediol, through a series of processes composed of viscosity enhancing by solid state polycondensation, melting, metering, extruding, cooling, oiling, stretching, heat setting, relaxation heat-treating, oiling with activation oil, winding and pre-activation treatment. The relaxation heat-treating indicates passing the modified polyester yarns through a space with a certain temperature within 200-220° C. under a proper relaxation state; and the proper relaxation state means a 3.0-5.0% of overfeed for the winding. The improvement of activator efficiency by importing the tert-butyl branched diol into the polyester, together with the synergistic effect of heat setting temperature and high winding overfeed rate, will reduce the fiber thermal shrinkage.

公开(公告)号：US20210214860A1

公开(公告)日：2021-07-15

申请号：US17144103

申请日：2021-01-07

申请人： Zhejiang Hongyu Medical Commodity Co., Ltd.

发明人： Juhong Zeng

IPC分类号： D01F6/14 ,  D01F11/06 ,  D01D5/06 ,  D01D1/02 ,  D01D10/06 ,  D01D10/02

摘要： The present application discloses a method for preparing microporous PVA fiber comprising the following steps: Step 1: preparing spinning solution, calcium hydroxide solution, and sodium sulfate solution; Step 2: cooling the spinning solution to 40-60° C., and adding a foaming agent thereto to provide the PVA spinning stock solution; Step 3: spinning into the sodium sulfate solution so that the fiber containing the reaction product of the foaming agent and the mirabilite is dehydrated to provide a primary PVA fiber; Step 4: reacting the fiber with the calcium hydroxide solution to provide a secondary fiber; Step 5: foaming and pore forming; and Step 6: cleaning and drying to provide the final product of microporous PVA fiber.

公开(公告)号：US10731275B2

公开(公告)日：2020-08-04

申请号：US16027360

申请日：2018-07-04

申请人： National Chung-Shan Institute of Science and Technology

发明人： Sywe-Bin Chien ,  Hung-Sung Liu ,  Rong-Jinn Shieh

IPC分类号： D01D4/02 ,  D01D5/06 ,  D01D10/02 ,  D01D10/06 ,  D01D5/34 ,  D01F4/00 ,  D01F9/04 ,  D01F9/00

摘要： The present application provides a manufacturing method and a spinneret assembly that includes a nozzle body, an outer spinning solution channel formed inside the nozzle body, and at least one inner spinning solution channel formed inside the nozzle body. A nozzle outlet formed at an end of the nozzle body is immersed in a solidification liquid. The outer spinning solution channel includes an outer liquid outlet, and the at least one inner spinning solution channel includes an inner liquid outlet. The outer liquid outlet and the inner liquid outlet communicate with the nozzle outlet and are confluent at the nozzle outlet. A diameter of the inner liquid outlet is smaller than a diameter of the outer liquid outlet. An outer-layer dope spinned from the outer liquid outlet covers an inner-layer dope spinned from the inner liquid outlet so as to generate a solid filamentary fiber with multi-layer materials.

公开(公告)号：US20200165751A1

公开(公告)日：2020-05-28

申请号：US16777986

申请日：2020-01-31

申请人： DUPONT SAFETY & CONSTRUCTION, INC.

发明人： Mark William Andersen ,  Mark T. Aronson ,  Christopher William Newton ,  Thomas Wayne Steinruck ,  B. Lynne Wiseman ,  Reiyao Zhu

IPC分类号： D02G3/04 ,  B29C48/00 ,  B29C48/21 ,  B29C48/05 ,  A41D13/02 ,  A41D13/008 ,  D01D5/38 ,  D01D5/26 ,  D01D10/02 ,  D01D10/06 ,  D01D4/02 ,  D02G3/44 ,  D01F1/10 ,  D01F8/12 ,  D01F8/08 ,  D01F1/09

摘要： 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.

公开(公告)号：US10557217B2

公开(公告)日：2020-02-11

申请号：US15578593

申请日：2016-06-02

申请人： THE EUCLID CHEMICAL COMPANY

发明人： Dean Paul Forgeron ,  Shannon McNair

IPC分类号： D01D10/02 ,  C04B16/06 ,  D01D5/20 ,  D01D5/253 ,  D02J1/06

摘要： A method for making a fiber reinforcement with variations in transverse cross section is disclosed. The method includes forming a fiber comprising polymeric material and exposing the fiber to a heat treatment, such that at least a portion of the polymeric material at or near said surface of said fiber is at or above the melting point temperature and substantially all of the polymeric material at or near the core is below the melting point temperature. The method further includes cooling the fiber to a temperature below the melting point temperature.

公开(公告)号：US10450677B2

公开(公告)日：2019-10-22

申请号：US16250963

申请日：2019-01-17

申请人： California Institute of Technology

发明人： Tzu-Chieh Chou ,  Yu-Chong Tai ,  Yudan Pi

IPC分类号： D01F6/96 ,  D01D10/02 ,  D01D5/24

摘要： A parylene microcapillary is manufactured by drawing a polyethylene carbonate (PEC) fiber from a 0° C. solution of 12-25% PEC in chloroform to create a PEC fiber that has a constant diameter over several centimeters. Parylene is deposited in a chamber over the PEC fiber, and then the coated PEC fiber is heated above 180° C. This heating melts and decomposes the PEC fiber such that it self-expels from the coating, leaving a microcapillary. The self-expulsion allows for meters-long lengths of microcapillaries. Alternatively, a serpentine fiber channel of PEC is created by deposition, photolithography, and etching within a sandwich of parylene. It is heated above 180° C. to expel the PEC leaving a hollow channel within a mass of parylene. The resulting microcapillaries may have residues of cyclic ethylene carbonate remaining from the decomposed PEC.

公开(公告)号：US20190271100A1

公开(公告)日：2019-09-05

申请号：US16320308

申请日：2018-01-24

申请人： LG Chem, Ltd.

发明人： Eu Gene Oh ,  Ji Eun Kim ,  Mi Jin Lee ,  Jae Hong Lee ,  Ju Han Kim ,  Won Jong Kwon ,  Won Jae Lee ,  Jin Kyu Lee

IPC分类号： D01F9/127 ,  D01D10/02 ,  C01B32/178 ,  C01B32/162

摘要： The present invention relates to a carbon nanotube fiber and methods for preparing the same. In one embodiment, a method for preparing a carbon nanotube fiber comprises reacting a carbon source in the presence of a catalyst and a catalytic activator to form carbon nanotube aggregates, contacting the carbon nanotube aggregates with graphene oxide, and forming the carbon nanotube aggregates in contact with the graphene oxide into a carbon nanotube fiber.

公开(公告)号：US10400366B2

公开(公告)日：2019-09-03

申请号：US15941325

申请日：2018-03-30

申请人： Apple Inc.

发明人： Steven J. Keating ,  Daniel A. Podhajny ,  Daniel D. Sunshine ,  Kathryn P. Crews

IPC分类号： D03D15/00 ,  D03D1/00 ,  D04B1/16 ,  D04B1/22 ,  H05K5/02 ,  A45C3/00 ,  D06M11/83 ,  D01D5/20 ,  D06M23/16 ,  D01D10/02 ,  D01F1/09 ,  D01F1/10 ,  G06F3/02 ,  H03K17/94 ,  H03K17/96 ,  H03K17/975 ,  D04B35/12 ,  A45C11/00

摘要： A fabric-based item may include fabric formed from intertwined strands of material. The strands of material may include extruded strands. Strand extrusion equipment may have electrically adjustable sources such as one or more sources of different polymers, dyes, particles, wire, and other elements to be incorporated into an extruded strand. The properties of the strands such as strand stiffness, strand diameter, conductivity, magnetic permeability, opacity, color, thermal conductivity, sand strength, may be varied along their lengths. Fabric formed from the strands may have different areas with different properties. Markers may be formed from particles at particular locations along the lengths of the strands, may be optical marker structures formed from circumferential rings of ink or other visible material on the strands, or may be other markers that can be sensed using electrical sensing, magnetic sensing, optical sensing, or other types of sensing when forming fabric from the strands.

公开(公告)号：US10378125B2

公开(公告)日：2019-08-13

申请号：US14934423

申请日：2015-11-06

申请人： Bayerische Motoren Werke Aktiengesellschaft

发明人： Eberhard Kohl ,  Franz Maidl ,  Hanno Pfitzer ,  Falco Hollmann

IPC分类号： D01D10/02 ,  D01F9/32 ,  H05B3/00 ,  D01D11/02 ,  B29C35/02

摘要： A method and a device are disclosed for heating carbon fiber strands. The method heats a carbon fiber strand by supplying an electric current to the carbon fiber strand. The device is designed to carry out the method.