公开(公告)号：US09603242B2

公开(公告)日：2017-03-21

申请号：US14360413

申请日：2012-12-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Mark J. Pellerite ,  John P. Baetzold ,  John J. Stradinger ,  Pingfan Wu ,  Hyacinth L. Lechuga ,  Manoj Nirmal

IPC: H01B1/02 ,  H05K1/02 ,  G02F1/1343 ,  B23K26/36 ,  B23K26/40 ,  B82Y30/00 ,  H05K3/02 ,  H05K3/28

CPC classification number: H05K1/0296 ,  B23K26/361 ,  B23K26/362 ,  B23K26/40 ,  B23K2101/34 ,  B23K2101/38 ,  B23K2103/172 ,  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 patternwise irradiating transparent electrodes (10; 20) to generate electrically insulating traces (21) are also described.

公开(公告)号：US20220366887A1

公开(公告)日：2022-11-17

申请号：US17633851

申请日：2020-08-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ronald W. Gerdes ,  Catherine A. Leatherdale ,  Thomas Herdtle ,  Paul A. Nielsen ,  Timothy J. Rowell ,  Liyun Ren ,  Daniel J. Zillig ,  Sachin Talwar ,  Eumi Pyun ,  Jeffrey A. Chambers ,  Pingfan Wu

IPC: G10K11/168

Abstract: An assembly includes an enclosure including first and second regions spaced apart along a first direction, and a plurality of spaced apart acoustic baffles arranged along a second direction different from the first direction and disposed in the enclosure between the first and second regions. The plurality of spaced apart acoustic baffles includes adjacent first and second acoustic baffles. Each of the first and second acoustic baffles include an acoustically absorptive layer disposed on a sheet having a specific airflow resistance greater than 200 MKS Rayl. The first and second acoustic baffles define a channel therebetween. At least a portion of the channel extends along a longitudinal direction making an oblique angle with the first direction.

公开(公告)号：US20220112319A1

公开(公告)日：2022-04-14

申请号：US17298218

申请日：2019-11-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Timothy J. Hebrink ,  Jeffrey O. Emslander ,  Katelyn M. Leniczek ,  Jacob D. Young ,  Darrin H. Lee ,  Chris R. Birkholz ,  Jinsheng Zhou ,  Pingfan Wu ,  Derek J. Dehn ,  Christopher J. Rother

IPC: C08F214/26 ,  C08F214/22 ,  C08F214/28 ,  B29C48/08 ,  B29C48/18 ,  C08F220/06 ,  C08F210/02

Abstract: A composite film comprises first and second layers. The first layer comprises a first copolymer of monomers comprising tetrafluoroethylene, hexafluoropropylene, and vinylidene fluoride, wherein the first copolymer contains at least 35 mole percent of vinylidene fluoride monomer units. The second layer is disposed on the first layer, and comprises a second copolymer comprising 50 to 83 weight percent of ethylene monomer units and at least 17 weight percent of alkyl (meth)acrylate monomer units represented by the formula (I) wherein R1 is H or methyl, and each R2 is independently an alkyl group having from 1 to 4 carbon atoms. Methods of making the composite film and articles including it are also disclosed.

公开(公告)号：US11235552B2

公开(公告)日：2022-02-01

申请号：US17058258

申请日：2018-07-23

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： MingZhu Li ,  Pingfan Wu ,  Tien Tsung Wu ,  Eumi Pyun ,  Zhong Hai Cai ,  QiSheng Pan

IPC: B32B5/26 ,  B32B7/027 ,  B32B5/02 ,  B32B7/12

Abstract: Provided is a multilayer thermal insulator and related method that use a non-woven core layer comprising non-meltable and flame-resistant polymeric fibers. One or more scrims are disposed on the opposing major surfaces of the non-woven core layer, and a peripheral edge of the one or more scrims is either edge sealed or capable of being edge sealed to substantially encapsulate the non-woven core layer within the one or more scrims. Optionally, a binder is provided on the scrims or non-woven core layer to facilitate edge sealing. The provided insulators are essentially dust-free and capable of passing stringent flammability standards.

公开(公告)号：US20200071865A1

公开(公告)日：2020-03-05

申请号：US16467399

申请日：2017-12-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Liyun Ren ,  Pingfan Wu ,  Daniel J. Zillig ,  Sachin Talwar ,  Jonathan H. Alexander

IPC: D04H1/4326 ,  D04H1/56 ,  D04H1/50

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%.

公开(公告)号：US20240212661A1

公开(公告)日：2024-06-27

申请号：US18288468

申请日：2022-04-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Tatjana Stecenko ,  Olester Benson, Jr. ,  Tongyang Shi ,  Pingfan Wu ,  James M. Jonza

IPC: G10K11/162 ,  B29C59/04 ,  B29K101/10 ,  B29L31/00 ,  G10K11/172

CPC classification number: G10K11/162 ,  B29C59/046 ,  G10K11/172 ,  B29K2101/10 ,  B29K2995/0046 ,  B29K2995/0063 ,  B29K2995/0097 ,  B29L2031/721

Abstract: Provided is an acoustic article and related methods of manufacture and use. The acoustic article includes a continuous layer having a first elastic stiffness, and a plurality of distributed masses disposed on a major surface of the continuous layer having a second elastic stiffness. The second elastic stiffness can be less than the first elastic stiffness to provide an acoustic metamaterial displaying an anti-resonance peak at a frequency below 800 Hz. The acoustic article can be made using efficient and scalable processes for manufacturing low frequency acoustic barrier materials.

公开(公告)号：US20230369694A1

公开(公告)日：2023-11-16

申请号：US18118908

申请日：2023-03-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Junkang Jacob Liu ,  Pingfan Wu ,  Jose Maria Benito ,  Walter R. Romanko ,  Lianzhou Chen

IPC: H01M50/204 ,  H01M50/505 ,  H01M50/434 ,  H01M50/446 ,  H01M50/46 ,  C09J7/38 ,  C09J183/04

CPC classification number: H01M50/204 ,  H01M50/505 ,  H01M50/434 ,  H01M50/446 ,  H01M50/461 ,  C09J7/38 ,  C09J183/04 ,  C09J2203/33 ,  C09J2301/302

Abstract: A battery assembly comprises an assembly housing, a plurality of battery modules disposed within the assembly housing and electrically coupled to a busbar, and at least one ceramifiable pad disposed within the assembly housing. Each battery module comprises a plurality of individual cells disposed within a module housing. The at least one ceramifiable pad is disposed between at least one of: at least two of the individual cells, at least two of the battery modules, the busbar and the assembly housing, or at least one of the battery modules and the assembly housing. The ceramifiable pad comprises a ceramifiable composition. Heating the ceramifiable composition to a temperature between 600 and 1600° C., inclusive, results in a ceramified composition. Ceramifiable compositions and methods of making them are also disclosed.

公开(公告)号：US20230365837A1

公开(公告)日：2023-11-16

申请号：US18118926

申请日：2023-03-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Junkang Jacob Liu ,  Pingfan Wu ,  Jose Maria Benito

IPC: C09J7/25 ,  C09J11/04 ,  C09J7/38 ,  H01M50/595

CPC classification number: C09J7/25 ,  C09J11/04 ,  C09J7/38 ,  H01M50/595 ,  C09J2203/33 ,  C09J2301/302 ,  C09J2301/41 ,  C09J2483/00 ,  C09J2483/006

Abstract: A ceramifiable composition comprises a crosslinked silicone matrix retaining stabilizing components. The stabilizing components comprise subcomponents: a) at least one of an aluminosilicate clay, aluminum oxide, or a hydrate thereof; b) at least one of phosphorus pentoxide, a polyphosphate, an inorganic phosphate salt, boron oxide, boric acid or a salt thereof; and c) at least one of an alkaline earth oxide, alkaline earth carbonate, or a hydrate thereof, and wherein heating the ceramifiable composition to a temperature between 600 and 1600 degrees Celsius, inclusive, results in a ceramified composition. An article including a layer of the ceramifiable composition and a method of making the same are also disclosed.

公开(公告)号：US20220396903A1

公开(公告)日：2022-12-15

申请号：US17250645

申请日：2019-10-07

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Tien T. Wu ,  Pingfan Wu ,  Liyun Ren

IPC: D04H1/544 ,  D04H1/56 ,  D04H1/541 ,  D04H1/43 ,  D04H1/4291 ,  D04H1/485 ,  D04H1/435

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.

公开(公告)号：US20220340774A1

公开(公告)日：2022-10-27

申请号：US17640929

申请日：2020-08-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Chunjie Zhang ,  Pingfan Wu ,  Tianying Jiang ,  Liang Gong

IPC: C09D127/16 ,  C09D127/18 ,  C09D127/20 ,  C08K3/34 ,  D06M15/256 ,  C09D7/61 ,  D06M11/77 ,  D06M15/31

Abstract: The present disclosure provides a high temperature, flame resistant and flexible coating composition based on alkali silicate and fluoropolymers. The coating can be used to bond a surface of a non-woven mat and seal the edges. The coating composition can be applied using a coating method on the surface and the edges of, for example, an inorganic fiber based non-woven mat.