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    INSULATING MATERIALS AND METHODS THEREOF
    1.
    发明申请
    INSULATING MATERIALS AND METHODS THEREOF 审中-公开

    公开(公告)号：WO2021081901A1

    公开(公告)日：2021-05-06

    申请号：PCT/CN2019/114753

    申请日：2019-10-31

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  LI, Mingzhu

    Inventor： WU, Pingfan ,  WANG, Zhaogang

    IPC: B32B9/04 ,  B32B27/00 ,  B32B27/30 ,  H01M2/02

    Abstract: Insulating articles, assemblies and methods are provided. The insulating articles include a core layer (101,201) containing a plurality of non-meltable fibers; and at least one reinforcement layer (102, 202) disposed on the core layer (101,201). The insulating article has tensile strength of at least 0.75 newtons/millimeter according to ASTM D822 and a tear strength of at least 2 newtons under ASTM D1938, wherein the insulating article has a surface electrical resistivity of at least 15 M-ohm at a relative humidity of 85% and temperature of 30℃, wherein the insulating article has an air flow resistance of up to 2000 MKS Rayls according to ASTM C522, and wherein the insulating article displays a UL94-V0 flammability rating.

    FLAME-RETARDANT NON-WOVEN FIBROUS WEBS
    2.
    发明申请
    FLAME-RETARDANT NON-WOVEN FIBROUS WEBS 审中-公开

    公开(公告)号：WO2020079525A1

    公开(公告)日：2020-04-23

    申请号：PCT/IB2019/058525

    申请日：2019-10-07

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： WU, Tien T. ,  WU, Pingfan ,  REN, Liyun

    IPC: D04H1/00 ,  D04H1/43 ,  D04H1/56 ,  D04H1/4291

    Abstract: A nonwoven fibrous web and a method of making thereof. The nonwoven fibrous web includes greater than 0% but no greater than 30 wt% of a plurality of melt-blown fibers comprised of a crystalline (co)polymer; and at least 70 wt% of a plurality of randomly-oriented staple fibers, the plurality of randomly-oriented staple fibers including: at least 60 wt% of oxidized polyacrylonitrile fibers; and from 0 to 40 wt% of reinforcing fibers having an outer surface comprised of a (co) polymer with a melting temperature of from 100°C to 350°C; wherein the plurality of melt-blown fibers and the plurality of randomly-oriented staple fibers are bonded together to form a cohesive non-woven fibrous web.

    THERMAL INSULATORS AND METHODS THEREOF
    3.
    发明申请
    THERMAL INSULATORS AND METHODS THEREOF 审中-公开

    公开(公告)号：WO2019090659A1

    公开(公告)日：2019-05-16

    申请号：PCT/CN2017/110372

    申请日：2017-11-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  CAI, Ray

    Inventor： CAI, Ray ,  WU, Pingfan ,  WU, Tien Tsung ,  HOFFDAHL, Gerry A. ,  LI, Mingzhu

    IPC: D04H1/42 ,  A47C27/00

    Abstract: The provided articles and methods use a non-woven fibrous web containing 60-100 wt% of oxidized polyacrylonitrile fibers; and 0-40 wt% of reinforcing fibers having outer surfaces comprised of a polymer with a melting temperature of from 100°C to 300°C. The non-woven fibrous web has an average bulk density of from 15 kg/m 3 to 50 kg/m 3 , with the plurality of fibers substantially entangled along directions perpendicular to a major surface of the non-woven fibrous web. Optionally, the oxidized polyacrylonitrile fibers can have a crimped configuration. Advantageously, these articles can display a combination of low thermal conductivity, high tensile strength, and flame resistance.

    DIMENSIONALLY-STABLE, FIRE-RESISTANT MELT-BLOWN FIBERS AND NONWOVEN STRUCTURES INCLUDING A FLAME RETARDING POLYMER
    4.
    发明申请
    DIMENSIONALLY-STABLE, FIRE-RESISTANT MELT-BLOWN FIBERS AND NONWOVEN STRUCTURES INCLUDING A FLAME RETARDING POLYMER 审中-公开

    公开(公告)号：WO2018126085A1

    公开(公告)日：2018-07-05

    申请号：PCT/US2017/068854

    申请日：2017-12-29

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： REN, Liyun ,  WU, Pingfan ,  ZILLIG, Daniel J. ,  TALWAR, Sachin ,  ALEXANDER, Jonathan H.

    IPC: D01D5/08 ,  D01F1/07 ,  C08L81/02

    Abstract: Dimensionally stable fire-resistant fibrous structures including fire-resistant melt-blown nonwoven fibers, and processes and apparatus for producing such dimensionally stable, fire-resistant nonwoven fibrous structures. The melt-blown fibers include poly(phenylene sulfide) in an amount sufficient for the nonwoven fibrous structures to pass one or more fire-resistance test selected from UL 94 V0, FAR 25.853 (a), and FAR 25.856 (a), without any halogenated flame-retardant additive in the nonwoven fibrous structure. The melt-blown fibers are subjected to a controlled in-flight heat treatment at a temperature below a melting temperature of the poly(phenylene sulfide) immediately upon exiting from at least one orifice of a melt-blowing die, in order to impart dimensional stability to the fibers. The nonwoven fibrous structures including the in-flight heat treated melt-blown fibers exhibit a Shrinkage less than a Shrinkage measured on an identically-prepared structure including only fibers not subjected to the controlled in-flight heat treatment operation, and generally less than 15%.

    LASER MARKING PROCESS AND ARTICLES
    5.
    发明申请
    LASER MARKING PROCESS AND ARTICLES 审中-公开
    激光标记过程和文章

    公开(公告)号：WO2011026106A1

    公开(公告)日：2011-03-03

    申请号：PCT/US2010/047321

    申请日：2010-08-31

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  WU, Pingfan ,  LIU, Junkang Jacob ,  SMITHSON, Robert L. W. ,  LUCKING, Rachel M.. ,  ZOLLER, Panu K. ,  EMSLANDER, Jeffrey O. ,  KUMAR, Kanta

    Inventor： WU, Pingfan ,  LIU, Junkang Jacob ,  SMITHSON, Robert L. W. ,  LUCKING, Rachel M.. ,  ZOLLER, Panu K. ,  EMSLANDER, Jeffrey O. ,  KUMAR, Kanta

    IPC: B41M5/26

    CPC classification number: B41M5/267 ,  Y10T428/24868 ,  Y10T428/31909

    Abstract: A process to mark a multilayered article with a laser (20). The multilayered article (10) includes a laser-markable layer (14) having at least one organic polymer and at least one light-sensitive pigment therein, and including at least one release agent associated with the laser-markable layer. Laser-marking of the laser-markable layer is accomplished by directing laser radiation (22) into the multilayered article through the release agent (12) to induce an interaction between the light-sensitive pigment and the organic polymer. As a result of the interaction, a visually perceptible marking (16) is formed in the article. The laser-marked article includes a laser-markable layer and a first release agent associated with a surface of the laser-markable layer. The marking (s) in the laser-markable layer is visible through the layer of release agent, and the marking is a result of the laser-induced interaction between the light-sensitive pigment and the organic polymer.

    Abstract translation: 用激光（20）标记多层物品的过程。 多层制品（10）包括其中具有至少一种有机聚合物和至少一种光敏颜料的可激光标记层（14），并且包括与可激光标记层相关联的至少一种脱模剂。 可激光标记层的激光标记通过将激光辐射（22）通过脱模剂（12）引导到多层制品中以诱导感光颜料和有机聚合物之间的相互作用来实现。 作为相互作用的结果，在制品中形成视觉上可察觉的标记（16）。 激光标记制品包括可激光标记层和与可激光标记层的表面相关联的第一释放剂。 可激光标记层中的标记通过剥离剂层是可见的，并且标记是光敏颜料和有机聚合物之间的激光诱导相互作用的结果。

    ACOUSTIC COMPOSITE AND METHODS THEREOF
    9.
    发明申请
    ACOUSTIC COMPOSITE AND METHODS THEREOF 审中-公开

    公开(公告)号：WO2019069202A1

    公开(公告)日：2019-04-11

    申请号：PCT/IB2018/057575

    申请日：2018-09-28

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： STECENKO, Tatjana ,  WU, Pingfan ,  ALEXANDER, Jonathan H.

    IPC: B32B5/02 ,  B32B5/18 ,  B32B7/02 ,  B32B27/28 ,  B32B27/30 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B32B3/26 ,  E04B1/84 ,  G10K11/16 ,  G10K11/162

    Abstract: The present disclosure provides an acoustic composite. The acoustic composite includes a first porous layer having a flow resistance in a range of from about 100 Rayl to about 150,000 Rayl. The acoustic composite further includes a second porous layer having a flow resistance in a range of from about 100 Rayl to about 150,000 Rayl. The acoustic composite further includes a perforated membrane adjacent to at least one of the first porous layer and the second porous layer. The perforated membrane includes a first surface and a second surface opposed to the first surface. The perforated membrane further includes a patterned arrangement of a plurality of through-holes each independently extending from a first open end, the first surface including the first open end, to a second open end, the second surface including the second open end.

    LASER PATTERNING OF SILVER NANOWIRE - BASED TRANSPARENT ELECTRICALLY CONDUCTING COATINGS
    10.
    发明申请
    LASER PATTERNING OF SILVER NANOWIRE - BASED TRANSPARENT ELECTRICALLY CONDUCTING COATINGS 审中-公开
    基于银纳米线的透明电导率涂层的激光图案

    公开(公告)号：WO2013095971A1

    公开(公告)日：2013-06-27

    申请号：PCT/US2012/068731

    申请日：2012-12-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  PELLERITE, Mark J. ,  BAETZOLD, John P. ,  STRADINGER, John J. ,  WU, Pingfan ,  LECHUGA, Hyacinth L. ,  NIRMAL, Manoj

    Inventor： PELLERITE, Mark J. ,  BAETZOLD, John P. ,  STRADINGER, John J. ,  WU, Pingfan ,  LECHUGA, Hyacinth L. ,  NIRMAL, Manoj

    IPC: H01B1/22 ,  G02F1/1343 ,  B82Y30/00 ,  H05K3/02 ,  B23K26/36

    CPC classification number: H05K1/0296 ,  B23K26/361 ,  B23K26/362 ,  B23K26/40 ,  B23K2201/34 ,  B23K2201/38 ,  B23K2203/172 ,  B82Y30/00 ,  G02F1/13439 ,  G02F2202/022 ,  G02F2202/36 ,  H01B1/02 ,  H05K3/027 ,  H05K3/282 ,  H05K2201/0108 ,  H05K2201/026 ,  Y10T29/49204

    Abstract: A transparent electrical conductor (10; 20), comprising a transparent substrate (14; 201); a composite layer (18; 28) comprising an electrically conductive layer (12) disposed on at least a portion of a major surface of the transparent substrate (14; 201) and comprising a plurality of interconnecting metallic nanowires, and a polymeric overcoat layer (16) disposed on at least a portion of the electrically conductive layer (12); wherein a pattern in the composite layer includes an x-axis and a y-axis of an x-y plane of the composite layer and a z- axis into the x-y plane of the composite layer, and the pattern defines a plurality of electrically conductive regions (24, 24') in the x-y plane of the composite layer (18; 28), wherein the electrically conductive regions (24, 24') are separated from each other by electrically insulative traces (21), each of which defines a valley into the z-axis of the x-y plane of the composite layer (18; 28), the valley having a maximum depth (27) in a range from 50 nanometers to 100 nanometers relative to the x-y plane of the composite layer (18; 28), wherein the valley has a cross-sectional width (M1) in a range from 10 micrometers to 1000 micrometers, and wherein the valley further comprises a plurality of crevices (22) having a depth (23) in a range from 50 nanometers to 100 nanometers further into the z-axis of the x-y plane of the composite layer (18; 28). Methods for pattemwise irradiating transparent electrodes (10; 20) to generate electrically insulating traces (21) are also described.

    Abstract translation: 一种透明电导体（10; 20），包括透明衬底（14; 201）; 包括设置在所述透明基板（14; 201）的主表面的至少一部分上并且包括多个互连金属纳米线的导电层（12）和聚合物外涂层（18; 28） 16）布置在所述导电层（12）的至少一部分上; 其中所述复合层中的图案包括所述复合层的xy平面的x轴和y轴以及复合层的xy平面中的z轴，并且所述图案限定多个导电区域（ 24,24'）在所述复合层（18; 28）的xy平面中，其中所述导电区域（24,24'）通过电绝缘迹线（21）彼此分离，每个线路限定谷 复合层（18; 28）的xy平面的z轴，相对于复合层（18; 28）的xy平面，具有在50纳米至100纳米范围内的最大深度（27）的谷部分， ，其中所述谷具有在10微米至1000微米范围内的横截面宽度（M1），并且其中所述谷还包括具有在50纳米至100埃范围内的深度（23）的多个缝隙（22） 纳米进一步进入复合层（18; 28）的xy平面的z轴。 还描述了用于图案地照射透明电极（10; 20）以产生电绝缘迹线（21）的方法。

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