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公开(公告)号：US11661687B2
公开(公告)日：2023-05-30
申请号：US17860715
申请日：2022-07-08
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Pingfan Wu , Tien Tsung Wu , Gerry A. Hoffdahl , MingZhu Li
IPC: D04H1/4382 , D04H1/435 , B29C43/24 , D04H1/43 , H01M10/658 , B29C70/08 , D04H1/4374 , D04H1/485 , B29K233/20 , B29C43/52 , B29K105/12 , B05D1/18
CPC classification number: D04H1/4382 , B29C43/24 , B29C70/08 , D04H1/43 , D04H1/435 , D04H1/43835 , H01M10/658 , B05D1/18 , B29C2043/522 , B29C2043/525 , B29K2105/128 , B29K2233/20 , B32B2250/20 , B32B2262/0276 , B32B2262/14 , D04H1/4374 , D04H1/485
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/m3 to 50 kg/m3, 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.
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公开(公告)号：US20210331444A1
公开(公告)日：2021-10-28
申请号：US17309065
申请日：2019-11-13
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Pingfan Wu , Tien T. Wu
IPC: B32B5/26 , D04H1/43 , D04H1/4374 , D04H1/4291 , D04H1/64 , B32B5/02 , B32B5/08 , B32B5/10
Abstract: A nonwoven fiber assembly. The nonwoven fiber assembly includes a nonwoven fibrous web including a plurality of discontinuous fibers; and a nonwoven fabric at least partially surrounding the nonwoven fibrous web; the nonwoven fabric including a plurality of randomly-oriented fibers, the plurality of randomly-oriented fibers comprising: at least 60 wt % of oxidized polyacrylonitrile fibers; and from 0 to less than 40 wt % of reinforcing fibers having an outer surface comprised of a (co)polymer with a melting temperature of from 100° C. to 450° C.; and a fluoropolymer binder on the plurality of randomly-oriented fibers.
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公开(公告)号：US20210156060A1
公开(公告)日：2021-05-27
申请号：US17258484
申请日：2019-07-27
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Eumi Pyun , Liyun Ren , Pingfan Wu
IPC: D04H1/4291 , D06M15/263 , D06M11/71 , H01M10/658 , D04H1/593 , D04H1/587
Abstract: A scrim is described comprising a plurality of fibers and a coating disposed on the scrim wherein the coating comprises a binder and a flame retardant additive. The scrim has a basis weight less than or equal to 200 grams/m2 and passes the UL94-V0 flammability standard. The scrim may be incorporated into other articles and methods. Also described is a flame retardant coating composition.
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公开(公告)号：US20190202547A1
公开(公告)日：2019-07-04
申请号：US16311891
申请日：2017-06-09
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Pingfan Wu , Nicholas A. Lee , Raymond P. Johnston , Chris A. Praggastis
CPC classification number: B64C21/10 , B64C2230/26 , F15D1/004 , F15D1/12 , Y02T50/166
Abstract: Provided are aerodynamic articles and related methods that use an aerodynamic body with a microstructured surface thereon. The microstructured surface has a plurality of parallel primary ridges defining major capillary channels, and optionally a plurality of parallel secondary ridges having a height less than that of the primary ridges and extending between and generally parallel to the primary ridges. The optional secondary ridges at least partially define two or more minor capillary channels within each major capillary channel. The aerodynamic surface provides reduced drag and is capable providing a high degree of friction against shoe surfaces under oil and water contaminated conditions.
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公开(公告)号：US20180104937A1
公开(公告)日：2018-04-19
申请号：US15567185
申请日：2016-05-05
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Pingfan Wu , Lianzhou Chen , Fredrick W. Vance , Edward E. Cole , Charles W. Hedley , Gregory L. Simon , Michael C. Martin
CPC classification number: B32B25/08 , A62C8/06 , B32B5/022 , B32B5/245 , B32B25/10 , B32B25/14 , B32B2260/021 , B32B2260/046 , B32B2262/0269 , B32B2262/101 , B32B2307/102 , B32B2307/304 , B32B2605/18
Abstract: A sound and heat insulating blanket is presented comprising: a) a first layer of fabric comprising first fibers; and b) a first sound barrier film comprising a first rubber; wherein the first layer of fabric and first sound barrier film are bound together through a first interpenetrated binding layer wherein the first rubber of the first sound barrier film is interpenetrated by the first fibers of the first layer of fabric; and optionally c) a second layer of fabric comprising second fibers; wherein the second layer of fabric and first sound barrier film are bound together through a second interpenetrated binding layer wherein the first cured composition of the first sound barrier film is interpenetrated by the second fibers of the second layer of fabric. Typically, the sound and heat insulating blanket comprises no adhesive binding the first and second layers of fabric and the sound barrier film.
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Patent Agency Ranking
公开(公告)号：US20250026901A1
公开(公告)日：2025-01-23
申请号：US18710275
申请日：2022-11-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Junkang J. Liu , Pingfan Wu , Jeffrey P. Kalish , Lianzhou Chen
IPC: C08J9/00 , C08J3/28 , C09J5/08 , C09J7/38 , C09J183/10
Abstract: Crosslinked silicone foams can be prepared from first and second poly(organosiloxane)s using electron beam radiation. The first poly(organosiloxane) has Si—H groups and the second poly(organosiloxane) has Si—OH groups. Adhesive articles including pressure-sensitive adhesive crosslinked silicone foams are also disclosed.
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公开(公告)号：US12146248B2
公开(公告)日：2024-11-19
申请号：US17261661
申请日：2019-10-15
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Liyun Ren , Daniel J. Zillig , Sachin Talwar , Eumi Pyun , Jeffrey A. Chambers , Nurkan Turkdogru Gurun , Pingfan Wu , Tien T. Wu
Abstract: Provided are non-woven fibrous webs, methods and assemblies thereof. The non-woven fibrous web comprises a plurality of melt-blown fibers. The plurality of melt-blown fibers include a thermoplastic polymer blended with a phosphinate and/or polymeric phosphonate. The provided non-woven articles can afford a fine fiber diameter for enhanced acoustic insulation properties, dimensional stability, and superior flame-retardant properties when compared with conventional non-woven articles having similar fiber diameters.
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公开(公告)号：US12125464B2
公开(公告)日：2024-10-22
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: F24F13/24 , G10K11/16 , G10K11/168 , G11B33/08
CPC classification number: 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.
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公开(公告)号：US20210292947A1
公开(公告)日：2021-09-23
申请号：US17261661
申请日：2019-10-15
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Liyun Ren , Daniel J. Zillig , Sachin Talwar , Eumi Pyun , Jeffrey A. Chambers , Nurkan Turkdogru Gurun , Pingfan Wu , Tien T. Wu
Abstract: Provided are non-woven fibrous webs, methods and assemblies thereof. The non-woven fibrous web comprises a plurality of melt-blown fibers. The plurality of melt-blown fibers include a thermoplastic polymer blended with a phosphinate and/or polymeric phosphonate. The provided non-woven articles can afford a fine fiber diameter for enhanced acoustic insulation properties, dimensional stability, and superior flame-retardant properties when compared with conventional non-woven articles having similar fiber diameters.
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10.发明申请公开(公告)号：US20210095405A1
公开(公告)日：2021-04-01
申请号：US15733240
申请日：2018-12-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Liyun L. Ren , Pingfan Wu , Daniel J. Zillig , Sachin Talwar , Jonathan H. Alexander , Ta-Hua Yu , Moses M. David , James A. Phipps
Abstract: Dimensionally-stable fibrous structures including ceramic-coated melt-blown nonwoven fibers made of a flame-retarding polymer and processes for producing such 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, e.g. UL 94 V0, FAR 25.853 (a), FAR 25.856 (a), and CA Title 19, without any halogenated flame-retardant additive, and have a ceramic coating. 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 a nonwoven fibrous structure including only fibers not subjected to the controlled in-flight heat treatment operation, generally less than 15%.
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