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公开(公告)号：US12198667B2
公开(公告)日：2025-01-14
申请号：US17602649
申请日：2020-04-13
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michelle M. Mok , Michael R. Berrigan , Nicole D. Petkovich , Jonathan H. Alexander , Michael S. Wendland , Seungkyu Lee , Hassan Sahouani
IPC: G10K11/165 , D06M11/74 , D06M11/77 , D06M15/01 , D06M15/227 , D06M23/08 , G10K11/168
Abstract: Provided are acoustic articles, and related methods, that include a porous layer and heterogeneous filler received in the porous layer. The heterogeneous filler can include clay, diatomaceous earth, graphite, glass bubbles, polymeric filler, non-layered silicate, plant-based filler, or a combination thereof, and can have a median particle size of from 1 micrometer to 1000 micrometers and a specific surface area of from 0.1 m2/g to 800 m2/g. The acoustic article can have an overall flow resistance of from 100 MKS Rayls to 8000 MKS Rayls. The acoustic articles can serve as acoustic absorbers, vibration dampers, and/or acoustic and thermal insulators.
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公开(公告)号：US20240261780A1
公开(公告)日：2024-08-08
申请号：US18564500
申请日：2022-05-19
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael R. Berrigan , Alan R. Dombrowski , Laura R. Nereng , Audrey A. Sherman , Brett J. Sitter , Narina Y. Stepanova , Michael C. Wohl
IPC: B01L3/00
CPC classification number: B01L3/5023 , B01L3/502715 , B01L3/502753 , B01L2300/0825 , B01L2400/0406 , B01L2400/0683
Abstract: A sample collection system includes a housing comprising a first part and a second part, the first and second parts being movable relative to one another; porous sample collection media disposed along an airflow path in the first part; and an assay disposed on the second part and constructed to receive a sample captured by the porous sample collection media. The first and second parts may be slidably movable relative to one another. The first and second parts may be rotatably movable relative to one another. Moving the first and second parts relative to one another aligns the porous sample collection media with at least a portion of the assay. The assay may be a lateral flow assay or a vertical flow assay. The media is constructed to collect a sample from exhalation airflow. A collected sample may be eluted from the media onto the assay using a liquid.
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公开(公告)号：US11839845B2
公开(公告)日：2023-12-12
申请号：US17263875
申请日：2019-07-19
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Zhiqun Zhang , Edward Keith Willis , Jacob J. Thelen , Daniel E. Johnson , Bryan L. Gerhardt , Michael R. Berrigan
CPC classification number: B01D39/1623 , B01D46/0001 , B01D46/0005 , B01D46/0032 , B01D46/521 , D04H3/033 , D04H3/16 , D06C15/02 , D06C15/08 , B01D2239/0208 , B01D2239/0435 , B01D2239/0618 , B01D2239/0627 , B01D2239/10 , B01D2239/1266 , D10B2505/04
Abstract: A relofted, spunbonded nonwoven web exhibiting a solidity of from less than 8.0%, to at least 3.0%, and exhibiting a Quality Factor of at least 0.30. Methods of making a relofted web; and, methods of using a relofted web as an air-filtration web, e.g. as a filter media or a layer thereof.
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公开(公告)号：US20220314576A1
公开(公告)日：2022-10-06
申请号：US17840518
申请日：2022-06-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Thomas J. Gilbert , Shou-Lu G. Wang , Neelakandan Chandrasekaran , Todd L. Nelson , Stanley Rendon , Mark A. Peltier , Michael R. Berrigan , Jerald W. Hall, JR. , Stephen M. Sanocki , Daniel E. Johnson , Bernard G. Rolstad , Ibrahim S. Gunes , Jayant Chakravarty
IPC: B32B5/02 , B32B7/05 , B32B5/06 , B32B5/24 , B32B5/26 , B32B37/00 , B32B3/26 , B32B27/32 , B32B27/06 , B32B27/12 , B32B5/14 , B32B5/08 , D04H13/00 , B32B3/30 , B32B5/18 , B32B37/06 , B32B37/20 , D04H1/4291
Abstract: A composite fabric includes a nonwoven fabric layer having non-bonded areas and a structured film layer discontinuously bonded to the nonwoven fabric layer. The discontinuously bonded nonwoven fabric layer and the structured film layer share an overlapping area with at least one set of coincident bond sites. The discontinuously bonded nonwoven fabric does not have another bonding pattern in the overlapping area distinct from the at least one set of coincident bond sites. A method of forming a composite fabric is also described. The method includes forming a fiber layer including a mat of at least partially unconsolidated fibers, positioning a structured film layer and the fiber layer such that they overlap, and discontinuously bonding the mat into a discontinuously bonded nonwoven fabric while simultaneously bonding the structured film layer to the nonwoven fabric layer. An apparatus for forming a composite fabric is also described.
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公开(公告)号：US20220178061A1
公开(公告)日：2022-06-09
申请号：US17651948
申请日：2022-02-22
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Anne N. de Rovere , Kari A. McGee , Daimon K. Heller , William V. Chiu , Petrus J. Bekker , Michael R. Berrigan
IPC: D04H3/115 , C04B35/18 , C04B35/622 , C04B35/624 , D04H1/4209 , D04H3/004 , D04H3/03 , D04H3/105
Abstract: A non woven web including a multiplicity of non-respirable, polycrystalline, aluminosilicate ceramic filaments entangled to form a cohesive mat, the polycrystalline, aluminosilicate ceramic filaments having an average mullite percent of at least 75 wt %. The cohesive mat preferably exhibits a compression resilience after 1,000 cycles at 900° C. when measured according to the Fatigue Test, of at least 30 kPa. Insulation articles including the cohesive mats or formed by chopping the ceramic mats into ceramic fibers, pollution control devices including the insulation articles, and methods of making the non-respirable, polycrystalline, aluminosilicate ceramic filaments and fibers, nonwoven webs, insulation articles, and pollution control devices, are also described.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20200208314A1
公开(公告)日：2020-07-02
申请号：US16631443
申请日：2018-07-30
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Eugene G. Joseph , Saurabh Batra , Michael R. Berrigan , John D. Stelter , Jacob J. Thelen , Zackary J. Becker , Liyun Ren , Sachin Talwar , Michael D. Romano
IPC: D04H1/4291 , D01F1/10 , D01F6/04 , D01D5/088
Abstract: Nonwoven webs including one or more semi-continuous filaments made of a mixture including from about 50% w/w to about 99% w/w of at least one crystalline polyolefin (co)polymer, and from about 1% w/w to about 40% w/w of at least one hydrocarbon tackifier resin. The at least one semi-continuous filament exhibits molecular orientation, and at least one of the crystalline polyolefin (co)polymer or the nonwoven web exhibits a Heat of Fusion measured using Differential Scanning Calorimetry of greater than 50 Joules/g. A process for making the semi-continuous filaments and nonwoven webs is also disclosed.
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公开(公告)号：US20180222143A1
公开(公告)日：2018-08-09
申请号：US15752844
申请日：2016-08-10
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Thomas J. Gilbert , Shou-Lu G. Wang , Neelakandan Chandrasekaran , Todd L. Nelson , Stanley Rendon , Mark A. Peltier , Michael R. Berrigan , Jerald W. Hall, Jr. , Stephen M. Sanocki , Daniel E. Johnson , Bernard G. Rolstad , Ibrahim S. Gunes , Jayant Chakravarty
IPC: B32B5/02 , B32B7/04 , B32B3/30 , B32B5/26 , B32B3/26 , B32B5/06 , B32B5/18 , B32B37/00 , B32B37/20 , B32B37/06 , D04H1/4291 , B32B5/24
CPC classification number: B32B5/022 , B32B3/266 , B32B3/30 , B32B5/06 , B32B5/08 , B32B5/142 , B32B5/18 , B32B5/245 , B32B5/26 , B32B7/05 , B32B27/06 , B32B27/065 , B32B27/12 , B32B27/32 , B32B37/0053 , B32B37/0076 , B32B37/065 , B32B37/203 , B32B2037/1238 , B32B2262/0253 , B32B2262/04 , B32B2262/14 , B32B2266/02 , B32B2266/0278 , B32B2270/00 , B32B2305/28 , B32B2307/514 , B32B2307/704 , B32B2323/04 , B32B2323/10 , B32B2432/00 , B32B2437/00 , B32B2555/02 , D04H1/4291 , D04H13/00 , D10B2503/00 , D10B2509/026
Abstract: A composite fabric includes a nonwoven fabric layer having non-bonded areas and a structured film layer discontinuously bonded to the nonwoven fabric layer. The discontinuously bonded nonwoven fabric layer and the structured film layer share an overlapping area with at least one set of coincident bond sites. The discontinuously bonded nonwoven fabric does not have another bonding pattern in the overlapping area distinct from the at least one set of coincident bond sites. A method of forming a composite fabric is also described. The method includes forming a fiber layer including a mat of at least partially unconsolidated fibers, positioning a structured film layer and the fiber layer such that they overlap, and discontinuously bonding the mat into a discontinuously bonded nonwoven fabric while simultaneously bonding the structured film layer to the nonwoven fabric layer. An apparatus for forming a composite fabric is also described.
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公开(公告)号：US20170347724A1
公开(公告)日：2017-12-07
申请号：US15682600
申请日：2017-08-22
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Seyed A. Angadjivand , James E. Springett , John M. Brandner , Marvin E. Jones , Andrew R. Fox , Michael R. Berrigan , John D. Stelter
CPC classification number: A41D13/113 , A62B23/025 , D04H3/14 , D04H3/16
Abstract: A flat-fold respirator is made from a stiff filtration panel joined to the remainder of the respirator through at least one line of demarcation. The panel contains a porous monocomponent monolayer nonwoven web that contains charged intermingled continuous monocomponent polymeric fibers of the same polymeric composition and that has sufficient basis weight or inter-fiber bonding so that the web exhibits a Gurley Stiffness greater than 200 mg and the respirator exhibits less than 20 mm H2O pressure drop. The respirator may be formed without requiring additional stiffening layers, bicomponent fibers, or other reinforcement and can be flat-folded for storage. Scrap from the manufacturing process may be recycled to make additional stiff filtration panel web.
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公开(公告)号：US20250144867A1
公开(公告)日：2025-05-08
申请号：US18835283
申请日：2023-02-03
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Andrew C. Clausen , Li Yu , Michael R. Berrigan , Samuel E. Marmon , Timothy J. Lindquist , William J. Kopecky
Abstract: A polygonal cluster includes a plurality of substantially parallel polymeric columns disposed inside an outermost polygonal perimeter of the polygonal cluster and extending along a thickness direction between opposing first and second major surfaces of the polygonal cluster; and a common first material substantially filling regions within the polygonal perimeter between the polymeric columns and across the thickness of the polygonal cluster, such that in a cross-section of the polygonal cluster in a plane substantially orthogonal to the thickness of the cluster, for at least each of a plurality of first polymeric columns in the plurality of polymeric columns disposed adjacent the perimeter of the cluster, the first polymeric column has a pear shape having a wider portion facing the perimeter and a narrower portion facing away from the perimeter.
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公开(公告)号：US20240329415A1
公开(公告)日：2024-10-03
申请号：US18577724
申请日：2022-07-15
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Li Yu , Garth V. Antila , Michael R. Berrigan , Andrew C. Clausen , William T. Fay , Timothy J. Lindquist , Tri D. Pham , Samuel E. Marmon , Zhaohui Yang , Steven H. Kong
CPC classification number: G02B27/0988 , G02B5/003
Abstract: A light control film includes opposing substantially planar substantially parallel first and second major surfaces spaced apart along a thickness direction of the light control film by less than about 500 microns; and a plurality of substantially parallel optically transparent polymeric columns disposed in, and substantially surrounded by, a light absorbing polymeric material. Each of the polymeric columns has a first column end at the first major surface and an opposite second column end at the second major surface and has an aspect ratio of greater than about 3, such that the first column ends of at least one pair of adjacent polymeric columns include substantially parallel substantially straight sides facing, and substantially coextensive with, each other.
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