公开(公告)号：US20240360598A1

公开(公告)日：2024-10-31

申请号：US18647086

申请日：2024-04-26

申请人： Celanese Polymers Holding, Inc.

发明人： Carmen A. Covelli ,  Greg C. Oldham ,  James A. Lombardo ,  Katrina Kratz

IPC分类号： D02G3/02 ,  D01D5/088 ,  D01F6/84 ,  D01F11/08 ,  D02G3/32

CPC分类号： D02G3/02 ,  D01D5/088 ,  D01F6/84 ,  D01F11/08 ,  D02G3/32 ,  D10B2331/04 ,  D10B2401/063

摘要： A thermoplastic copolyester elastomer-based yarn and a method of making a thermoplastic copolyester elastomer-based yarn are disclosed. The yarn comprises a filament that is formed from a thermoplastic copolyester elastomer composition comprising a thermoplastic copolyester elastomer containing hard segments and soft segments. The thermoplastic copolyester elastomer exhibits a flexural modulus of about 300 MPa or less as determined in accordance with ISO 178:2019 at a temperature of about 23° C. and a melting temperature of from about 100° C. to about 230° C. as determined in accordance with ISO 11357-3:2018. The yarn has a linear density of from about 1 to about 2000 denier per filament and exhibits an elongation at break of about 300% or more as determined in accordance with ASTM D2653-07(2018) at a temperature of about 23° C.

公开(公告)号：US20240360596A1

公开(公告)日：2024-10-31

申请号：US18761880

申请日：2024-07-02

申请人： Leander F. AULISIO

发明人： Leander F. AULISIO

IPC分类号： D01F9/22 ,  D01D1/02 ,  D01D10/02 ,  D01D13/00 ,  D01F6/18 ,  D01F9/32

CPC分类号： D01F9/225 ,  D01D1/02 ,  D01D10/02 ,  D01D13/00 ,  D01F6/18 ,  D01F9/328 ,  D10B2101/12 ,  D10B2321/10

摘要： A process for preparing a carbon fiber precursor is hereby disclosed, wherein the precursor is selected from a series of solid PAN (polyacrylonitrile) fibers, wherein each member of the series contains about 0.5 mole % to about 8 mole % ammonium salt of 2-acrylamido-2-methyl propane sulfonic acid.

公开(公告)号：US12129573B2

公开(公告)日：2024-10-29

申请号：US17417848

申请日：2019-12-20

申请人： LENZING AKTIENGESELLSCHAFT

发明人： Christoph Schrempf ,  Johann Pillichshammer ,  Andreas Gressenbauer ,  Ernst Reiter ,  Martin Neunteufel

IPC分类号： D01D4/02 ,  D01D10/02 ,  D01F2/00 ,  D01F2/06

CPC分类号： D01D4/02 ,  D01D10/02 ,  D01F2/06 ,  D01F2/00

摘要： A method of producing lyocell filaments employs a steam heatable spinneret having a rectangular shape with an aspect ratio of more than 2 and comprising at least a top housing and a nozzle frame. The spinneret is heated and used for spinning cellulosic filaments from a cellulose solution in a solvent. A lyocell process employs the spinneret.

公开(公告)号：US12128364B2

公开(公告)日：2024-10-29

申请号：US16611219

申请日：2018-05-09

申请人： FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH

发明人： Torsten Keller ,  Jens Holger Stahl ,  Eric Sommer

IPC分类号： B01D69/08 ,  B01D61/24 ,  D01D4/06 ,  D01D5/24

CPC分类号： B01D69/085 ,  B01D61/243 ,  B01D69/088 ,  D01D4/06 ,  D01D5/24 ,  B01D2323/42

摘要： A spinning nozzle is provided for the extrusion of a hollow fiber from one or more spinning masses. An apparatus that includes a spinning nozzle, and a method for extruding a hollow fiber using the spinning nozzle, are also provided. The spinning nozzle has an inlet port for each spinning mass to be extruded. The inlet port is for introducing the spinning mass into the spinning nozzle. An outlet port for the exit of a spinning mass along an outlet axis, is also provided. A spinning mass flow channel is used to guide the spinning mass from the inlet port to the outlet port. The spinning mass flow channel includes a flow manipulation section having an inlet and an outlet and includes a flow-guiding structure for influencing a spinning mass through the spinning mass flow channel.

公开(公告)号：US12115282B2

公开(公告)日：2024-10-15

申请号：US18063600

申请日：2022-12-08

申请人： Research Institute at Nationwide Children's

发明人： Christopher Breuer ,  Robert Strouse ,  Yong Ung-Lee ,  Cameron Best ,  Narutoshi Hibino

IPC分类号： A61L27/38 ,  A61L27/18 ,  A61L27/20 ,  A61L27/24 ,  A61L27/50 ,  A61L27/54 ,  A61L27/58 ,  B33Y10/00 ,  B33Y80/00 ,  D01D5/00

CPC分类号： A61L27/3834 ,  A61L27/18 ,  A61L27/20 ,  A61L27/24 ,  A61L27/507 ,  A61L27/54 ,  A61L27/58 ,  B33Y10/00 ,  B33Y80/00 ,  D01D5/0076 ,  A61L2300/41 ,  A61L2300/414 ,  A61L2300/416 ,  A61L27/18 ,  C08L67/04 ,  A61L27/18 ,  C08L77/00 ,  A61L27/18 ,  C08L85/02

摘要： It has been established that optimizing cell seeding onto tissue engineering vascular grafts (TEVG) is associated with reduced inflammatory responses and reduced post-operative stenosis of TEVG. Cell seeding increased TEVG patency in a dose dependent manner, and TEVG patency improved when more cells were seeded, however duration of incubation time showed minimal effect on TEVG patency. Methods of engineering patient specific TEVG including optimal numbers of cells to maintain graft patency and reduce post-operative stenosis are provided. Closed, single-use customizable systems for seeding TEVG are also provided. Preferably the systems are custom-designed based on morphology of the patient specific graft, to enhance the efficacy of cell seeding.

公开(公告)号：US20240336764A1

公开(公告)日：2024-10-10

申请号：US18749975

申请日：2024-06-21

申请人： Polytex Sportbelage Produktions-GmbH

发明人： Stephan SICK ,  Dirk SANDER ,  Dirk SCHMITZ ,  Bernd JANSEN ,  Ivo LOHR

IPC分类号： C08K5/00 ,  C08J3/22 ,  C08K5/134 ,  C08K5/17 ,  C08K5/524 ,  D01D5/42 ,  D01F1/10 ,  D01F6/46 ,  D01F6/90 ,  E01C13/08

CPC分类号： C08K5/005 ,  C08J3/226 ,  C08K5/134 ,  C08K5/17 ,  C08K5/524 ,  D01D5/426 ,  D01F1/106 ,  D01F6/46 ,  D01F6/90 ,  E01C13/08 ,  C08J2323/06 ,  C08J2377/00 ,  C08J2400/22

摘要： A polymer-based artificial turf fiber including substances adapted for protecting the fiber against UV radiation. The substances comprise a hindered amine light stabilizer-HALS and a first and a second UV-absorbent substance. The molecular weights of the first and the second UV-absorbent substances differ from each other by at least 100 g/mol.

公开(公告)号：US12109334B2

公开(公告)日：2024-10-08

申请号：US18159412

申请日：2023-01-25

申请人： Washington University

发明人： Matthew R. MacEwan

IPC分类号： A61L27/18 ,  A61F13/02 ,  A61L15/26 ,  A61L15/44 ,  A61L15/64 ,  A61L27/26 ,  A61L27/54 ,  A61L27/58 ,  A61L27/60 ,  A61L31/04 ,  B29C48/18 ,  B32B5/02 ,  B32B5/26 ,  B32B7/02 ,  B32B7/12 ,  D01D5/00 ,  D04H1/728 ,  D04H3/16

CPC分类号： A61L31/04 ,  A61L15/26 ,  A61L15/44 ,  A61L15/64 ,  A61L27/18 ,  A61L27/54 ,  A61L27/58 ,  A61L27/60 ,  B29C48/18 ,  B32B5/022 ,  B32B5/26 ,  B32B7/02 ,  B32B7/12 ,  D01D5/0007 ,  D01D5/0038 ,  D01D5/0061 ,  D01D5/0076 ,  D04H1/728 ,  D04H3/16 ,  A61F13/02 ,  A61L2300/414 ,  A61L2400/12 ,  A61L2400/18 ,  A61L2430/20 ,  A61L2430/32 ,  B32B2250/20 ,  B32B2262/0276 ,  B32B2307/518 ,  B32B2307/54 ,  B32B2307/726 ,  B32B2307/7265 ,  B32B2556/00 ,  D10B2509/00 ,  A61L15/26 ,  C08L67/04 ,  A61L27/18 ,  C08L67/04

摘要： A three-dimensional electrospun biomedical patch includes a first polymeric scaffold having a first structure of deposited electrospun fibers extending in a plurality of directions in three dimensions to facilitate cellular migration for a first period of time upon application of the biomedical patch to a tissue, wherein the first period of time is less than twelve months, and a second polymeric scaffold having a second structure of deposited electrospun fibers. The second structure of deposited electrospun fibers includes the plurality of deposited electrospun fibers configured to provide structural reinforcement for a second period of time upon application of the three-dimensional electrospun biomedical patch to the tissue wherein the second period of time is less than twelve months. The three-dimensional electrospun biomedical patch is sufficiently pliable and resistant to tearing to enable movement of the three-dimensional electrospun biomedical patch with the tissue.

公开(公告)号：US12104285B2

公开(公告)日：2024-10-01

申请号：US17712076

申请日：2022-04-02

申请人： Zhejiang Kabute Technology Co., Ltd.

发明人： Xiaobing Yu ,  Bo Chen

IPC分类号： D01D5/34 ,  D01F1/10 ,  D02G3/06 ,  H05B3/34

CPC分类号： D01D5/34 ,  D01F1/10 ,  D02G3/06 ,  H05B3/347 ,  D10B2331/02 ,  D10B2331/04 ,  D10B2401/04 ,  D10B2503/04 ,  D10B2503/06

摘要： A covered yarn material for a heating blanket felt, a covered yarn, and a woven product thereof are provided. The covered yarn material includes a skin-layer material and a core-layer material, where the skin-layer material includes 20 wt % to 30 wt % of a powder melt mixture and 80 wt % to 70 wt % of a mixed-melt raw material; the core-layer material includes 100 wt % of a core-layer filament; the powder melt mixture is composed of the following components: 20 wt % of a carbon nanotube (CNT), 35 wt % of a graphite powder, 25 wt % of a copper powder, and 20 wt % of a jade ore powder; the mixed-melt raw material includes one or more from the group consisting of polyethylene terephthalate (PET), polyamide (PA) 6, PA66, polyphenylene sulfide (PPS), liquid crystal polymer (LCP), and polycarbonate (PC); and the core-layer filament includes one or more from PET, PA66, PPS, and LCP.

公开(公告)号：US12104283B2

公开(公告)日：2024-10-01

申请号：US16701553

申请日：2019-12-03

申请人： NATIONAL INSTITUTE FOR MATERIALS SCIENCE

发明人： Izumi Ichinose ,  Xinsheng Peng ,  Sadaki Samitsu ,  Rui Zhang

IPC分类号： D01D5/00 ,  B01D53/02 ,  B01J20/26 ,  B01J20/28 ,  B01J20/30 ,  B29C35/16 ,  B29C67/20 ,  B82Y30/00 ,  B82Y40/00 ,  C08J9/26 ,  D01F6/22

CPC分类号： D01D5/00 ,  B01D53/02 ,  B01J20/262 ,  B01J20/28007 ,  B01J20/28023 ,  B01J20/28057 ,  B01J20/3085 ,  B29C35/16 ,  B29C67/202 ,  B82Y30/00 ,  C08J9/26 ,  D01F6/22 ,  B01D2253/202 ,  B01D2257/504 ,  B01D2257/7025 ,  B82Y40/00 ,  C08J2201/0482 ,  Y02C20/20 ,  Y02C20/40 ,  Y02P70/62 ,  Y10T428/2975

摘要： The invention provides networked polymeric nanofibers having a structure in which amorphous polymeric fibers are branched at multiple sites and having a diameter of from 1 nanometer to 100 nanometers.
A solution of a polymer such as polystyrene in a good solvent thereof is rapidly frozen to form a nanoscale phase-separation structure of the polymer and the frozen solvent. The networked polymeric nanofibers can then be obtained upon removing the frozen solvent.

公开(公告)号：US20240318358A1

公开(公告)日：2024-09-26

申请号：US18422618

申请日：2024-01-25

申请人： SHANDONG UNIVERSITY

发明人： Guilong WANG ,  Jialong CHAI

IPC分类号： D01F6/12 ,  D01D5/08 ,  D01F11/06

CPC分类号： D01F6/12 ,  D01D5/08 ,  D01F11/06 ,  D10B2321/042 ,  D10B2401/10

摘要： A polytetrafluoroethylene porous fiber and a manufacturing and modifying process thereof including: blending a PTFE raw material, a processing aid, a modifying filler and the like with certain shear strength by using a blending device; extruding the blend through a die head, drawing, and feeding the blend into a spinning roller for stretching and spinning; feeding the stretched blend fiber into a solvent pool for washing and etching or high-temperature ablation; and drying, annealing and other treatments of the obtained PTFE porous fiber before collection. According to the process, continuous manufacturing of the PTFE fiber with the micro-nano porous structure is achieved, and in-situ modification is conducted on the fiber to avoid complex post-treatment steps. The process is flexible, the production is efficient and low-cost, and the product has adjustable fineness and length, lower density and good air permeability.