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公开(公告)号：US20220096977A1
公开(公告)日：2022-03-31
申请号：US17422560
申请日：2020-01-17
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Zhiqun Zhang , Michael R. Berrigan , Ignatius A. Kadoma , Bryan L. Gerhardt , Liming Song , John D. Stelter , Zackary J. Becker
IPC: B01D39/16 , B01D46/10 , B01D46/52 , B32B5/02 , B32B5/26 , B32B5/08 , D04H1/541 , D01F8/14 , D04H3/011 , D04H3/16 , D01F1/10 , F24F8/108
Abstract: The present disclosure relates to multi-layer composite articles including at least two nonwoven web layers. Each or the layers may be a spunbonded web, and each may include biodegradable materials. The multi-layered composites of the present disclosure are particularly well suited for air filtration, as they can combine a high dust holding capacity with sufficient strength, dimensional stability, and a relatively low pressure drop.
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公开(公告)号：US20190209954A1
公开(公告)日：2019-07-11
申请号：US16328401
申请日：2017-08-22
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Andrew R. Fox , Himanshu Jasuja , Bryan L. Gerhardt , Dennis M. Glass
IPC: B01D39/16 , B01D46/00 , B01D46/52 , B01D53/04 , B32B5/02 , B32B5/16 , B32B5/26 , B32B5/30 , B01J20/20 , B01J20/28
CPC classification number: B01D39/163 , B01D39/1623 , B01D46/0032 , B01D46/0036 , B01D46/521 , B01D53/04 , B01D2239/0407 , B01D2239/0435 , B01D2239/0464 , B01D2239/0618 , B01D2239/0622 , B01D2239/0627 , B01D2239/065 , B01D2239/0654 , B01D2239/1216 , B01D2239/1258 , B01D2239/1275 , B01D2253/102 , B01D2257/708 , B01D2259/4508 , B01D2275/10 , B01D2279/50 , B01J20/20 , B01J20/28016 , B01J20/2803 , B01J20/28035 , B01J20/28052 , B32B5/022 , B32B5/16 , B32B5/24 , B32B5/26 , B32B5/30 , B32B2250/03 , B32B2260/025 , B32B2262/0215 , B32B2262/0253 , B32B2264/108 , B32B2307/724
Abstract: The present disclosure relates generally to improved room air purifiers and filtration media for use in room air purifiers. In some embodiments, the room air purifiers and media exhibit excellent filtration of cigarette smoke and/or formaldehyde. Some embodiments include a multilayer filtration media, comprising: a fluorinated electret layer; a sorbent layer adjacent to the fluorinated electret layer; and an optional backing layer having a Gurley stiffness of at least about 200 mg; where the backing layer is not present, at least one of the fluorinated electret layer, the sorbent layer, or the combination of the two layers has a Gurley stiffness of at least about 200 mg. In some embodiments, the filtration media is pleated.
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公开(公告)号：US20220266180A1
公开(公告)日：2022-08-25
申请号：US17628683
申请日：2020-08-12
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John D. Stelter , Zachary J. Becker , Michael R. Berrigan , Alexander P. Flage , Andrew R. Fox , Bryan L. Gerhardt , Himanshu Jasuja , William J. Kopecky , Patrick J. Sager , Samatha D Smith , Jacob J. Thelen , Kent B. Willgohs
Abstract: A single-layer spunbonded air-filtration web including meltspun autogenously bonded electret fibers with an Actual Fiber Diameter of from 3.0 microns to 15 microns. The air-filtration web exhibits a ratio of mean flow pore size to pore size range of from 0.55 to 2.5. Also disclosed are methods of making such webs, and methods of using such webs to perform air filtration.
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公开(公告)号：US20210324240A1
公开(公告)日：2021-10-21
申请号：US17364976
申请日：2021-07-01
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Brett P. Krull , Dawud H. Tan , Saurabh Batra , Bryan L. Gerhardt , Stephen M. Sanocki
IPC: C09J7/21
Abstract: The present disclosure provides adhesive articles that can be removed from surfaces without damage by having reduced or eliminated contribution of a core backing to peel force generated by the adhesive during removal. In some instances, this can be accomplished by a core that loses structural integrity in a direction normal to a plane defined by a major surface. In other instances, the contribution is reduced by compromising the interface between the core and a peelable adhesive layer.
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公开(公告)号：US20210229012A1
公开(公告)日：2021-07-29
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
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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Patent Agency Ranking
公开(公告)号：US20170216756A1
公开(公告)日：2017-08-03
申请号：US15500752
申请日：2015-08-24
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Andrew R. Fox , Glen O. Gregerson , Bryan L. Gerhardt
CPC classification number: B01D46/521 , B01D46/0002 , B01D46/0032 , B01D46/10 , B01D46/4227 , B01D46/442 , B01D46/448 , B01D46/46 , B01D46/523 , B01D2265/04 , B01D2275/203 , B01D2279/35 , B01D2279/40 , E06B7/02 , E06B7/03 , E06B2007/023 , F24F3/1603 , F24F13/18 , F24F13/28 , F24F2003/1635 , F24F2003/1657 , F24F2221/20
Abstract: The present disclosure relates to air filters. More particularly, it relates to air filters including pleated filter media that can be uniformly expanded and contracted. In some embodiments, the air filters are adjustably sized air filter systems. In some embodiments, the air filters can be used in a window opening.
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公开(公告)号：US12017175B2
公开(公告)日：2024-06-25
申请号：US17263834
申请日：2019-07-30
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Zhiqun Zhang , Nhat Ha Thi Nguyen , Jimmy M. Le , Glen O. Gregerson , Bryan L. Gerhardt , Philip D. Eitzman
CPC classification number: B01D46/523 , B01D39/163 , B01D46/0001 , B01D46/0005 , B01D46/0032 , B31D5/0082 , B01D2239/0435 , B01D2239/0618 , B01D2239/0627 , B01D2239/10 , B01D2265/04 , B01D2265/06 , B01D2275/50
Abstract: A pleated air filter media is provided. The pleated air filter media comprises a plurality of upstream linear bridging filaments that are extrusion-bonded to at least some of a plurality of upstream pleat tips of a fibrous web, and a plurality of downstream continuous-contact filaments that are extrusion-bonded to a downstream face of the fibrous web. Methods of making and using the same are also provided.
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公开(公告)号：US20230372854A1
公开(公告)日：2023-11-23
申请号：US18229021
申请日：2023-08-01
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Changwen Li , Andrew R. Fox , Bryan L. Gerhardt
CPC classification number: B01D46/103 , B01D46/523 , B01D46/10 , B01D46/16 , B01D2275/203
Abstract: A conformable, unframed pleated air filter, comprising a plurality of bridging filaments on at least one face of the pleated air filter.
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公开(公告)号：US11305224B2
公开(公告)日：2022-04-19
申请号：US16606596
申请日：2017-04-18
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Andrew R. Fox , Himanshu Jasuja , Mikhail A. Belkin , Bryan L. Gerhardt , Glen O. Gregerson , Gerry A. Hoffdahl , Jonathan M. Lise , Tien T. Wu
Abstract: An air filter media (10) including a pleated fibrous filtration web (8) with a first major side (2) that includes at least one sorbent-loaded area (26) in which sorbent particles (14) are present on a first major surface (25) of the pleated fibrous filtration web (8), at least some of the sorbent particles (14) being post-pleat-deposited sorbent particles.
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公开(公告)号：US20180021716A1
公开(公告)日：2018-01-25
申请号：US15547182
申请日：2015-01-29
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Changwen Li , Andrew R. Fox , Bryan L. Gerhardt
CPC classification number: B01D46/103 , B01D46/10 , B01D46/523 , B01D2275/203
Abstract: A conformable, unframed, non-self-supporting pleated air filter, comprising: a conformable, unframed, non-self-supporting, pleated air filter media with an upstream face and a downstream face, wherein the conformable, unframed, non-self-supporting, pleated air filter media comprises a plurality of oppositely-facing pleats with a pleat direction and with a plurality of upstream pleat tips and upstream pleat valleys and downstream pleat tips and downstream pleat valleys, the pleated air filter media further comprising a plurality of bridging filaments on the downstream face of the pleated air filter media.
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