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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：US20170252590A1
公开(公告)日：2017-09-07
申请号：US15519888
申请日：2015-10-21
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Seyed A. Angadjivand , Nhat Ha T. Nguyen , Bryan L. Gerhardt , Jimmy M. Le , John M. Brandner , Stephen M. Sanocki
CPC classification number: A62B23/025 , A41D13/11 , A41D13/1115 , B01D39/1623
Abstract: Various embodiments of a filtering face-piece respirator and a method of making such respirator are disclosed. In one or more embodiments, the filtering face-piece respirator includes a mask body and a harness attached to the mask body. The mask body includes a corrugated filtering structure including peaks separated by valleys, and bridging filaments that are in discontinuous contact with at least one of an interior surface and an exterior surface of the corrugated filtering structure. The bridging filaments are attached to at least some of the peaks.
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Patent Agency Ranking
公开(公告)号：US11033763B2
公开(公告)日：2021-06-15
申请号：US15503732
申请日：2015-08-12
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Nhat Ha Thi Nguyen , Thomas J. Xue , Seyed A. Angadjivand , Ronald W. Ausen , William J. Kopecky , Mark T. Gibson , Olof N. Hansson , Joseph P. Kronzer
Abstract: One or more embodiments of a respirator that includes a polymeric netting is disclosed. The respirator can include a mask body including a perimeter, a harness attached to the mask body, and a face seal disposed adjacent at least a portion of the perimeter of the mask body. In one or more embodiments, the face seal includes a polymeric netting including polymeric ribbons and polymeric strands, where each of the polymeric ribbons and strands having a length, width, and height, where the length is the longest dimension, the width is the shortest dimension, and the height is the dimension transverse to the length and the width. The polymeric ribbons have a height-to-width aspect ratio of at least 5 to 1, a major surface that is intermittently bonded to only one polymeric strand, and a height that is at least two times greater than a height of the one polymeric strand.
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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：US20150238783A1
公开(公告)日：2015-08-27
申请号：US14628365
申请日：2015-02-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Nhat Ha T. Nguyen , Ronald W. Ausen , Thomas J. Xue , Seyed A. Angadjivand
CPC classification number: A62B18/084 , A41D13/1161 , A62B18/02 , A62B18/10 , A62B23/025
Abstract: Various embodiments of a respirator are disclosed. The respirator can include a mask body and one or more elastic straps that are secured to the mask body on opposing sides. The elastic straps can have an openwork construction and can include a netting that has an array of polymeric strands periodically joined together at bond regions throughout the array. In one or more embodiments, the openwork elastic straps are lighter and more breathable than conventional straps. This improvement in breathability can make the respirator more comfortable to wear.
Abstract translation: 公开了呼吸器的各种实施例。 呼吸器可以包括面罩主体和一个或多个弹性带，其在相对的侧面固定到面罩主体。 弹性带可以具有镂空结构，并且可以包括具有在整个阵列的结合区周期性地连接在一起的聚合物线阵列的网。 在一个或多个实施例中，镂空弹性带比常规带更轻和更透气。 透气性的改善可使呼吸器穿着更舒适。
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公开(公告)号：US10653901B2
公开(公告)日：2020-05-19
申请号：US14628365
申请日：2015-02-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Nhat Ha T. Nguyen , Ronald W. Ausen , Thomas J. Xue , Seyed A. Angadjivand
Abstract: Various embodiments of a respirator are disclosed. The respirator can include a mask body and one or more elastic straps that are secured to the mask body on opposing sides. The elastic straps can have an openwork construction and can include a netting that has an array of polymeric strands periodically joined together at bond regions throughout the array. In one or more embodiments, the openwork elastic straps are lighter and more breathable than conventional straps. This improvement in breathability can make the respirator more comfortable to wear.
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公开(公告)号：US20170274228A1
公开(公告)日：2017-09-28
申请号：US15503732
申请日：2015-08-12
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Nhat Ha Thi Nguyen , Thomas J. Xue , Seyed A. Angadjivand , Ronald W. Ausen , William J. Kopecky , Mark T. Gibson , Olof N. Hansson , Joseph P. Kronzer
CPC classification number: A62B23/025 , A41D13/113 , A41D13/1138 , A41D13/1176 , A61F5/0104 , A61F11/14 , A62B18/025 , A62B18/084 , B29D28/00
Abstract: One or more embodiments of a respirator that includes a polymeric netting is disclosed. The respirator can include a mask body including a perimeter, a harness attached to the mask body, and a face seal disposed adjacent at least a portion of the perimeter of the mask body. In one or more embodiments, the face seal includes a polymeric netting including polymeric ribbons and polymeric strands, where each of the polymeric ribbons and strands having a length, width, and height, where the length is the longest dimension, the width is the shortest dimension, and the height is the dimension transverse to the length and the width. The polymeric ribbons have a height-to-width aspect ratio of at least 5 to 1, a major surface that is intermittently bonded to only one polymeric strand, and a height that is at least two times greater than a height of the one polymeric strand.
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