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公开(公告)号：US10575571B2
公开(公告)日：2020-03-03
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
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：US20170241054A1
公开(公告)日：2017-08-24
申请号：US15506213
申请日：2015-08-25
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Liming Song , Sachin Talwar , John D. Stelter , John M. Sebastian , Nathan E. Schultz , Eric M. Moore , Fuming B. Li , Andrew R. Fox , Michael R. Berrigan , Zackary J. Becker
CPC classification number: D04H3/11 , B01D39/163 , B01D46/0032 , B01D46/521 , B01D2239/0435 , B01D2239/10 , D01D5/16 , D04H3/011 , D04H3/14 , D10B2505/04
Abstract: Spunbonded electret webs comprising polylactic acid fibers, in which at least some of the polylactic acid fibers are meltspun, drawn, charged fibers that include charging additive; and, methods of making such fibers and webs.
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3.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：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：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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Patent Agency Ranking
公开(公告)号：US20140210141A1
公开(公告)日：2014-07-31
申请号：US14231175
申请日：2014-03-31
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Eric M. Moore , John D. Stelter , Michael R. Berrigan , Francis E. Porbeni , Matthew T. Scholz , Kevin D. Landgrebe , Korey W. Karls , Sian F. Fennessey , Jay M. Jennen
IPC: D06M10/00
CPC classification number: D06M10/00 , B29C47/00 , B29C47/0014 , B29C47/0021 , B29C47/003 , B29C47/0054 , B29C47/0057 , B29L2007/002 , B29L2031/731 , D01D5/0023 , D01F1/10 , D01F6/92 , D04H1/4291 , D04H1/435 , D04H1/485 , D04H3/007 , D04H3/011 , D04H3/11 , D04H3/16 , Y10T442/60 , Y10T442/608 , Y10T442/68 , Y10T442/681 , Y10T442/689 , Y10T442/697
Abstract: Dimensionally stable nonwoven fibrous webs include a multiplicity of continuous fibers formed from one or more thermoplastic polyesters and polypropylene in an amount greater than 0% and no more than 10% by weight of the web. The webs have at least one dimension which decreases by no greater than 10% in the plane of the web when heated to a temperature above a glass transition temperature of the fibers. A spunbond process may be used to produce substantially continuous fibers that exhibit molecular orientation. A meltblown process may be used to produce discontinuous fibers that do not exhibit molecular orientation. In some embodiments, the fibers comprise a viscosity modifier and/or an anionic surfactant. The webs may be used as articles for filtration, sound absorption, thermal insulation, surface cleaning, cellular growth support, drug delivery, personal hygiene, medical apparel, or wound dressing.
Abstract translation: 尺寸稳定的非织造纤维幅材包括由一种或多种热塑性聚酯和聚丙烯形成的多种连续纤维，其量大于纸幅重量的0％且不大于10％。 当幅材加热至高于纤维的玻璃化转变温度的温度时，幅材具有至少一个尺寸，其在幅材的平面中减小不超过10％。 纺粘方法可用于产生显示分子取向的基本上连续的纤维。 可以使用熔喷法来制造不显示分子取向的不连续纤维。 在一些实施方案中，纤维包含粘度调节剂和/或阴离子表面活性剂。 纤维网可以用作过滤，吸声，隔热，表面清洁，细胞生长支持，药物递送，个人卫生，医疗服装或伤口敷料的制品。
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公开(公告)号：US12109520B2
公开(公告)日：2024-10-08
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: B01D46/00 , B01D39/16 , B01D46/10 , B01D46/52 , B32B5/02 , B32B5/08 , B32B5/26 , D01F1/10 , D01F8/14 , D04H1/435 , D04H1/541 , D04H3/011 , D04H3/16 , F24F8/108
CPC classification number: B01D39/163 , B01D46/10 , B01D46/521 , B32B5/022 , B32B5/08 , B32B5/267 , D01F1/10 , D01F8/14 , D04H1/5412 , D04H3/011 , D04H3/16 , F24F8/108 , B01D2239/0233 , B01D2239/0266 , B01D2239/0618 , B01D2239/0627 , B01D2239/065 , B01D2239/10 , B01D2239/1291 , B32B2250/02 , B32B2250/20 , B32B2262/0276 , B32B2262/124 , B32B2307/7163 , B32B2307/724 , B32B2307/734 , D10B2331/041 , D10B2401/041 , D10B2401/12 , D10B2505/04
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：US20220266181A1
公开(公告)日：2022-08-25
申请号：US17631235
申请日：2020-08-12
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Himanshu Jasuja , Kent B. Willgohs , Jacob J. Thelen , John D. Stelter , Samatha D. Smith , Patrick J. Sager , William J. Kopecky , Bryan L Gerhardt , Andrew R. Fox , Alexander P. Flage , Michael R. Berrigan , Zachary J. Becker
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 9.0 microns. The air-filtration web exhibits a mean flow pore size of from 8.0 to 19 microns and 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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9.发明申请MELT-SPINNING PROCESS, MELT-SPUN NONWOVEN FIBROUS WEBS AND RELATED FILTRATION MEDIA 审中-公开熔融纺丝工艺，熔融纺丝非织造纤维织物和相关过滤介质公开(公告)号：US20160206984A1
公开(公告)日：2016-07-21
申请号：US14914675
申请日：2014-09-02
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael R. Berrigan , Zackary J. Becker , John D. Stelter , Francis E. Porbeni , Liming Song , Andrew R. Fox
CPC classification number: B01D39/163 , B01D29/012 , B01D29/031 , B01D39/1623 , B01D2239/0622 , B01D2239/065 , D04H3/02 , D04H3/03 , D04H3/14
Abstract: High loft nonwoven webs including a population of substantially continuous mono-component melt-spun filaments, wherein the nonwoven web exhibits a Solidity of less than eight percent with a weight normalized cross direction (CD) tensile greater than 10 Newtons per 100 grams per square meter of web weight (10 N/100 gsm), and wherein the nonwoven web is substantially free of gap-formed fibers, crimped fibers, staple fibers, and bi-component fibers. High loft spun-bond nonwoven webs can be advantageously used in filtration articles. Methods of making high loft spun-bond nonwoven webs, and filtration articles including high loft spun-bond webs made according to the methods, are also disclosed.
Abstract translation: 包括基本上连续的单组分熔纺丝的群体的高蓬松非织造纤维网，其中非织造纤维网的重量标准化横向（CD）拉伸强度大于10牛顿/ 100克/平方米，其粘度小于8％ 的纤维网重量（10N / 100gsm），并且其中非织造纤维网基本上没有间隙形成的纤维，卷曲纤维，短纤维和双组分纤维。 高折叠纺粘非织造纤维网可有利地用于过滤制品中。 还公开了制造高倾斜纺粘非织造网的方法，以及根据该方法制造的包括高纬度纺粘纤维网的过滤制品。
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公开(公告)号：US20240269494A1
公开(公告)日：2024-08-15
申请号：US18681792
申请日：2022-08-15
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Nicholas K. Lee , Liyun Ren , Tanya L. Beckwith , Gina M. Daveloose , Jeffrey G. Linert , Jacob T. Lusson , John D. Stelter , Jacob J. Thelen
CPC classification number: A62B23/02 , B01D39/163 , B01D2239/0435 , B01D2239/0627 , B01D2239/065
Abstract: Provided are face coverings that include a cover panel made from a cover panel material, a filter made from a filtration media adjacent the cover panel, and a retaining system for securing the face covering to a wearer's face. The face coverings can further include a gasket comprising gasket material connected to a perimeter of the cover panel and configured to contact to a wearer's face. The pressure drop across a combination of the cover panel material and the filtration media is from 45% to 75% of the pressure drop across the gasket material, enabling filtration of airborne contaminants allowing for reduced retaining tension and improved comfort to the wearer.
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