公开(公告)号：US11242623B2

公开(公告)日：2022-02-08

申请号：US16476739

申请日：2017-01-10

申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E. V.

发明人： Jens Erdmann ,  Johannes Ganster

IPC分类号： D01D1/04 ,  D01D5/12 ,  D01D5/16 ,  D01F9/22 ,  D06M11/38 ,  D06M13/248 ,  D06M13/405 ,  D06M13/418 ,  D01F6/38 ,  D02J1/22 ,  D02J13/00 ,  D01D5/08 ,  D06M10/00

摘要： The invention relates to a method for thermally stabilizing melt-spun PAN precursors. For this purpose, the invention provides a continuous method for producing a thermally stabilized multifilament thread made of a meltable copolymer of polyacrylonitrile (PAN), wherein a pre-stabilized multifilament thread is thermally stabilized and in the process at least temporarily stretched. The invention additionally relates to a thermally stabilized multifilament thread which can be obtained according to a corresponding method and to a carbon fiber which is made of the correspondingly thermally stabilized multifilament thread.

公开(公告)号：US11236444B2

公开(公告)日：2022-02-01

申请号：US15320070

申请日：2015-06-16

申请人： EISENMANN SE

发明人： Lars Meinecke

IPC分类号： D01F9/32 ,  F27B9/28 ,  D02J13/00

摘要： An oxidation furnace for the oxidative treatment of fibers having a housing which is gas-tight, apart from passage openings for the fibers, inter alia. A process chamber is located in the interior of the housing. Deflecting rollers guide the fibers through the process chamber in a serpentine manner so that the fibers lie next to one another as a fiber carpet which spans a plane between opposite deflecting rollers. An atmosphere-generating device can generate a hot working atmosphere and includes a blowing device with at least one outlet window through which a hot working atmosphere can be blown into the process chamber between two adjacent planes of the fiber carpet (22a). The working atmosphere is guided into the process chamber by a flow guiding system. The flow guiding system includes exchangeable flow guiding elements with flow passages which can be detachably and/or movably mounted on the blowing device, before the outlet window.

公开(公告)号：US11208736B2

公开(公告)日：2021-12-28

申请号：US16141787

申请日：2018-09-25

申请人： Bolt Threads, Inc.

发明人： Amir Ahmad Bakhtiary Davijani ,  Steven Tom ,  Maxime Boulet-Audet ,  Paul Andre Guerette ,  Lindsay Wray ,  Nicole Elizabeth Subler ,  Zoya Nasir Zulfiqar ,  Hua Li ,  Jessica Wang

IPC分类号： D01D5/06 ,  D01F6/68 ,  D02J13/00 ,  D02J1/22 ,  D01D1/02 ,  D01F4/02

摘要： Provided herein are scalable methods of processing wet-spun fiber comprising recombinant spider silk polypeptides to generate a three-dimensional crystalline lattice of beta-sheet structures in the fiber.

公开(公告)号：US11092381B2

公开(公告)日：2021-08-17

申请号：US15319985

申请日：2015-06-16

申请人： EISENMANN SE

发明人： Lars Meinecke

IPC分类号： F27B9/28 ,  G01F1/46 ,  D01F9/32 ,  D02J13/00 ,  F27D19/00

摘要： An oxidation furnace for the oxidative treatment of fibers having a housing which is gas-tight, apart from passage areas for the fibers, and a process chamber located in the interior of the housing. A hot working atmosphere can be generated by an atmosphere-generating device, can be blown into the process chamber and flows through the process chamber in processing conditions in a main direction of flow. Deflecting rollers guide the fibers through the process chamber in a serpentine manner in such a way that the fibers lie next to one another as a fiber carpet (22a), wherein the fiber carpet spans a plane between opposite deflecting rollers. A flow measuring system is provided, by means of which a flow profile of the working atmosphere in processing conditions can be generated, and which comprises at least one sensor system for determining the speed of flow, the sensor system being arranged in a sensor region between two adjacent fiber carpets.

公开(公告)号：US11065101B2

公开(公告)日：2021-07-20

申请号：US16483881

申请日：2018-03-13

申请人： Massachusetts Institute of Technology

发明人： Seyed M. Mirvakili ,  Ian W. Hunter

IPC分类号： F03G7/06 ,  A61F2/08 ,  D02G3/02 ,  D02G3/26 ,  D02J13/00

摘要： A torsional actuator formed of a yarn of twisted shape memory material. The yarn has multiple strands of homogeneous shape memory material that have been homochirally twisted. For torsional actuation, a fractional portion of the yarn is heated such as by Joule heating. Various Joule heating mechanisms include passing an electrical current through an unwound segment of the yarn, or by coating a fractional portion of the length of each homogeneous strand with a coating material of higher electrical conductivity than the electrical conductivity of the shape memory material an passing current through the length of the yarn. The shape memory material may be a shape memory alloy such as a NiTi alloy.

公开(公告)号：US20210213716A1

公开(公告)日：2021-07-15

申请号：US17216936

申请日：2021-03-30

申请人： Mitsubishi Chemical Corporation

发明人： Tadao SAMEJIMA ,  Yukihiro MIZUTORI ,  Junji KANEHAGI ,  Yasushi WATANABE

IPC分类号： B32B27/18 ,  D02J1/18 ,  B29B15/12 ,  C08J5/04 ,  B32B27/08 ,  B32B27/30 ,  B32B27/38 ,  D02J13/00 ,  D06H7/02

摘要： The present invention provides a method for manufacturing a fiber reinforced resin material, the method including an opening step of opening an elongated fiber bundle to be widened in a width direction thereof to be put into a flat state; and a heat setting step of heat-setting the opened fiber bundle in the flat state by heating. In addition, the present invention provides an apparatus for manufacturing a fiber reinforced resin material containing a plurality of fiber bundles and a resin, the apparatus including an opening section that opens an elongated fiber bundle to be widened in a width direction thereof to be put into a flat state; and a heat setting section that heat-sets the opened fiber bundle in the flat state by heating.

公开(公告)号：US10968315B2

公开(公告)日：2021-04-06

申请号：US16709098

申请日：2019-12-10

申请人： CANON KABUSHIKI KAISHA

发明人： Tetsuo Hino ,  Kazuhiro Yamauchi

IPC分类号： C08G59/22 ,  C08G63/08 ,  C08G63/91 ,  C08J3/03 ,  C08J3/09 ,  C08J3/24 ,  C08L63/00 ,  C08L67/04 ,  D01D10/02 ,  D01F6/44 ,  D01F6/88 ,  D01F6/90 ,  D01F6/92 ,  D01F6/94 ,  D01F11/04 ,  D02J13/00 ,  C08G73/14 ,  C08L79/08 ,  D04H1/728 ,  D04H1/4342 ,  C08G59/42 ,  D01D5/00 ,  C08G59/14

摘要： Provided is a polymer nanofiber sheet having high delamination resistance, a high mechanical strength, and a high specific surface area. Specifically, provided is a polymer nanofiber sheet, including polymer nanofibers, the polymer nanofibers being laminated and three-dimensionally entangled with each other, in which: at least part of the polymer nanofibers are crosslinked at a crosslinked part having crosslinking portions and a non-crosslinking portion; and the crosslinked part contains a low-molecular weight epoxy compound having a molecular weight of from 100 to 3,000.

公开(公告)号：US10767283B2

公开(公告)日：2020-09-08

申请号：US15345553

申请日：2016-11-08

申请人： Despatch Industries Limited Partnership

发明人： Hans L. Melgaard ,  Daniel M. Ruf ,  Matthew Benson ,  Phillip Vu ,  Robert Gerald Graham ,  Rolf Douglas Kragseth

IPC分类号： D01F9/32 ,  F27B9/28 ,  F27D7/00 ,  D02J13/00 ,  F27D3/00 ,  F27D7/02 ,  F27D11/00

摘要： Ovens, discharge nozzle plates for distribution of gas through an oven, and methods to operate an oven are disclosed. Example ovens include a heating system to heat gas, a substrate heating volume, and a plenum comprising a side wall having a plurality of passages formed therein, the plenum configured to direct heated gas into the substrate heating volume from the plurality of passages, each of the plurality of passages formed in the plenum having a respective tapered cross-sectional shape.

公开(公告)号：US20200216981A1

公开(公告)日：2020-07-09

申请号：US16626108

申请日：2018-06-28

申请人： JXTG Nippon Oil & Energy Corporation

发明人： Taku Ichibayashi ,  Yoshihiro Kumagai

IPC分类号： D01D5/098 ,  D02J1/22 ,  D02J13/00

摘要： The apparatus for producing ultrafine fibers includes a nozzle portion, a laser irradiation unit, and a drawing chamber. The nozzle portion has an inlet for feeding a raw fiber, a first jet outlet which communicates with the inlet and jets a first drawing gas stream for delivering and drawing the raw fiber, and a second jet outlet which is arranged in the periphery of the first jet outlet and jets a second drawing gas stream. The laser irradiation unit on which the nozzle portion is installed irradiates a laser light to the raw fiber delivered from first jet outlet to melt the raw fiber. The drawing chamber draws the melted raw fiber by using the first drawing gas stream and the second drawing gas stream which are jetted from the nozzle portion.

公开(公告)号：US10604871B2

公开(公告)日：2020-03-31

申请号：US14900459

申请日：2014-06-17

申请人： Mitsubishi Chemical Corporation

发明人： Akishige Tada ,  Yukihiro Mizutori

IPC分类号： D02J1/22 ,  B29C55/00 ,  D01F6/38 ,  D01D11/02 ,  D02J1/18 ,  D01F9/22 ,  D02J13/00 ,  D01F9/21 ,  D01F6/18 ,  D06B3/04 ,  D01D5/16 ,  D06C3/00 ,  B29K33/00 ,  B29L31/00

摘要： This process for manufacturing a carbon-fiber precursor acrylic fiber bundle and this steam drawing apparatus are characterized in that the drawing of an acrylic fiber bundle with a pressured-steam drawing apparatus is conducted by: opening an acrylic fiber bundle by blowing a fluid thereto; supplying humidifying steam to the opened acrylic fiber bundle at a fiber temperature of 80 to 130° C. to adjust the water content of the fiber bundle to 3 to 7%; and thereafter drawing the resulting acrylic fiber bundle in a pressurized-steam atmosphere. Thus, the present invention can prevent the breaking of a single fiber, the fluffing of the fiber bundle, and the breaking of the whole of the fiber bundle, though such defects are susceptible to occurring in a case where an acrylic fiber bundle is drawn by steam drawing at a high draw ratio, at a higher speed, or into a fiber having a small denier.