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公开(公告)号：US11939435B2
公开(公告)日：2024-03-26
申请号：US17329346
申请日：2021-05-25
摘要： The present disclosure provides poly(tetrafluoroethylene) (PTFE) microparticles with a Dv50 of about 20 μm to about 30 mm and a specific surface area (SSA) of at least about 3.0 m2/g when measured by a multipoint BET method of ISO 9277. Such PTFE microparticles can be obtained via a method including thermomechanically degrading scrap PTFE in the presence of air and/or oxygen and reducing the particle size of the resultant degraded PTFE.
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公开(公告)号：US20220111174A1
公开(公告)日：2022-04-14
申请号：US17555834
申请日：2021-12-20
摘要： The present disclosure provides modified polymeric thin-walled tubes with one or more conductive pathways along at least a part of a length or a circumference of the polymeric tube, suitable for use as liners in catheter construction. The one or more conductive pathways are formed of a conductive ink and are on a surface of the polymeric tube and not embedded within the walls of the tube.
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公开(公告)号：US20180244840A1
公开(公告)日：2018-08-30
申请号：US15903700
申请日：2018-02-23
IPC分类号： C08G63/08 , C08G63/42 , C08F246/00
CPC分类号： C08G63/08 , C08F246/00 , C08F2500/02 , C08F2500/03 , C08F2500/17 , C08F2800/10 , C08F2800/20 , C08G63/42 , C08L57/00 , C08L67/04 , C08L2205/02 , G01N25/4866 , G01N2030/486
摘要： A method for preparing blends of at least two polymer components is described herein. The disclosed method generally involves controlling relative molecular weights and ratios of the two or more polymer components by selecting a first initiator, a second initiator, and a monomer, and subjecting the reactants to conditions suitable to polymerize the monomer based at least in part on the first and second initiators in connection with obtaining the polymeric blend. The second initiator is advantageously selected based on one or more characteristics associated therewith, based on a characteristic of the first initiator. A polymeric blend produced according to such a method is also provided herein.
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公开(公告)号：US20180051156A1
公开(公告)日：2018-02-22
申请号：US15678272
申请日：2017-08-16
CPC分类号： C08J11/24 , B01D15/34 , B01J13/0065 , B01J14/00 , B01J19/0066 , C07C51/09 , C07C67/03 , C08J11/18 , C08J2367/02 , C08J2367/04 , Y02W30/706 , C07C59/08 , C07C69/68
摘要： A method for enhancing/accelerating the depolymerization of polymers (e.g., those containing hydrolyzable linkages) is described herein. The disclosed method generally involves contacting a polymer comprising hydrolyzable linkages with a solvent and an alcohol to give a polymer mixture in which the polymer is substantially dissolved, wherein the contacting is conducted at a temperature at or below the boiling point of the polymer mixture. A resulting depolymerized polymer can be separated therefrom (including, e.g., monomers and/or oligomers). Such methods can be conducted under relatively mild temperature and pressure conditions.
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5.发明申请公开(公告)号：US20160289874A1
公开(公告)日：2016-10-06
申请号：US15069988
申请日：2016-03-15
IPC分类号： D04H1/728 , D01D5/00 , D01F6/12 , B32B27/32 , B32B5/02 , B32B5/26 , B32B27/08 , A61F2/07 , B32B1/08
CPC分类号： A61F2/07 , A61F2/04 , A61F2/06 , A61F2/92 , A61F2002/072 , A61F2210/0076 , A61F2240/001 , A61F2250/0067 , A61L27/26 , A61L27/507 , A61L31/041 , A61L31/048 , A61L31/06 , A61L31/129 , A61L31/146 , A61L2400/12 , A61L2400/18 , B01D39/1623 , B01D2239/025 , B01D2239/0631 , B32B1/08 , B32B5/022 , B32B5/18 , B32B5/26 , B32B7/04 , B32B27/08 , B32B27/322 , B32B2250/03 , B32B2250/20 , B32B2250/242 , B32B2262/0253 , B32B2266/025 , B32B2535/00 , B82Y5/00 , D01D5/003 , D01D5/0038 , D01D5/0076 , D01D5/0084 , D01D5/06 , D01F6/12 , D04H1/492 , D04H1/54 , D04H1/728 , D10B2321/042 , D10B2509/06 , F16L11/12 , Y10T428/31544 , Y10T442/66 , Y10T442/677 , C08L71/02 , C08L27/18
摘要： In accordance with certain embodiments of the present disclosure, a process of forming a prosthetic device is provided. The process includes forming a dispersion of polymeric nanofibers, a fiberizing polymer, and a solvent, the dispersion having a viscosity of at least about 50,000 cPs. A tubular frame is positioned over a tubular polymeric structure. Nanofibers from the dispersion are electrospun onto the tubular frame to form a prosthetic device. The prosthetic device is heated.
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6.发明申请公开(公告)号：US20160030154A1
公开(公告)日：2016-02-04
申请号：US14858619
申请日：2015-09-18
CPC分类号： A61F2/07 , A61F2/04 , A61F2/06 , A61F2/92 , A61F2002/072 , A61F2210/0076 , A61F2240/001 , A61F2250/0067 , A61L27/26 , A61L27/507 , A61L31/041 , A61L31/048 , A61L31/06 , A61L31/129 , A61L31/146 , A61L2400/12 , A61L2400/18 , B01D39/1623 , B01D2239/025 , B01D2239/0631 , B32B1/08 , B32B5/022 , B32B5/18 , B32B5/26 , B32B7/04 , B32B27/08 , B32B27/322 , B32B2250/03 , B32B2250/20 , B32B2250/242 , B32B2262/0253 , B32B2266/025 , B32B2535/00 , B82Y5/00 , D01D5/003 , D01D5/0038 , D01D5/0076 , D01D5/0084 , D01D5/06 , D01F6/12 , D04H1/492 , D04H1/54 , D04H1/728 , D10B2321/042 , D10B2509/06 , F16L11/12 , Y10T428/31544 , Y10T442/66 , Y10T442/677 , C08L71/02 , C08L27/18
摘要： In accordance with certain embodiments of the present disclosure, a process of forming a prosthetic device is provided. The process includes forming a dispersion of polymeric nanofibers, a fiberizing polymer, and a solvent, the dispersion having a viscosity of at least about 50,000 cPs. A tubular frame is positioned over a tubular polymeric structure. Nanofibers from the dispersion are electrospun onto the tubular frame to form a prosthetic device. The prosthetic device is heated.
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公开(公告)号：US20140205781A1
公开(公告)日：2014-07-24
申请号：US13827886
申请日：2013-03-14
IPC分类号： C08J9/42
CPC分类号： C08J9/42 , C08J2327/18 , C08J2483/04 , F16J15/348 , Y10T428/1376 , Y10T428/24802 , Y10T428/249958
摘要： The present disclosure provides a composite material comprising a silicone component and an electrospun, porous polymeric component and methods of producing such a composite material. The layers are preferably processed so as to result in some degree of penetration of the silicone component into the pores of the electrospun polymeric component. The composite materials can be tailored for use in a range of different applications.
摘要翻译： 本公开提供了一种复合材料，其包括硅氧烷组分和电纺丝多孔聚合物组分以及生产这种复合材料的方法。 这些层优选地被加工成导致硅氧烷组分在电纺聚合物组分的孔中的一定程度的渗透。 复合材料可以定制用于一系列不同的应用。
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公开(公告)号：US20210371602A1
公开(公告)日：2021-12-02
申请号：US17329346
申请日：2021-05-25
摘要： The present disclosure provides poly(tetrafluoroethylene) (PTFE) microparticles with a Dv50 of about 20 μm to about 30 mm and a specific surface area (SSA) of at least about 3.0 m2/g when measured by a multipoint BET method of ISO 9277. Such PTFE microparticles can be obtained via a method including thermomechanically degrading scrap PTFE in the presence of air and/or oxygen and reducing the particle size of the resultant degraded PTFE.
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公开(公告)号：US11077604B2
公开(公告)日：2021-08-03
申请号：US16148826
申请日：2018-10-01
发明人： James M. Lindsey , John Richard Campanelli , Elizabeth A. Foley , Bruce L. Anneaux , Justin A. Marro
摘要： Methods for preparing oriented polymer tubes, such as biodegradable polymer tubes suitable for in vivo use, are provided herein. The disclosed methods provide alternatives to the typical extrusion/expansion methods by which oriented polymeric tubes for such uses are commonly produced. Advantageously, the disclosed methods can provide more homogeneous molecular orientation of crystallizable polymers within the tube walls, which can endow such polymeric tubes with enhanced strength (e.g., resistance to compression) and toughness.
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公开(公告)号：US20180193532A1
公开(公告)日：2018-07-12
申请号：US15866500
申请日：2018-01-10
发明人： Irina Puzdrjakova Roof , Brian Robert Tomblin , Zeth Eberling , Bruce L. Anneaux , Douglas Lee Tourville
CPC分类号： A61L29/041 , A61L29/049 , A61M25/0009 , A61M25/0023 , A61M25/0045 , B29C48/09 , B29C65/02 , B29C65/74 , B29C66/40 , B29K2023/10 , B29K2995/0049 , B29L2023/00 , B29L2023/22 , B65B53/02 , B65D71/08 , F16L11/04 , Y10T428/1328 , C08L27/12
摘要： A heat shrink tubing, which can be readily peeled in the longitudinal direction after use (e.g., to remove the heat shrink tubing from an underlying material) is provided herein. The heat shrink tubing can be of various compositions, and generally is produced from at least one fluorinated, copolyrneric resin. The tubing can exhibit desirable physical properties such as good optical clarity (e.g., translucency or transparency) and/or peelability, exhibiting one or more of complete, straight, and even peeling along a given length of tubing.
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