JP7764250B2 - 多層シート構造体 - Google Patents

多層シート構造体

Info

Publication number
JP7764250B2
JP7764250B2 JP2021544374A JP2021544374A JP7764250B2 JP 7764250 B2 JP7764250 B2 JP 7764250B2 JP 2021544374 A JP2021544374 A JP 2021544374A JP 2021544374 A JP2021544374 A JP 2021544374A JP 7764250 B2 JP7764250 B2 JP 7764250B2
Authority
JP
Japan
Prior art keywords
fibers
discontinuous
layer
article
continuous
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2021544374A
Other languages
English (en)
Japanese (ja)
Other versions
JP2022519058A (ja
Inventor
ダニエル ダックス
コルネイユ シュミッツ
セルジュ レボリヤ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DuPont Safety and Construction Inc
Original Assignee
DuPont Safety and Construction Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DuPont Safety and Construction Inc filed Critical DuPont Safety and Construction Inc
Publication of JP2022519058A publication Critical patent/JP2022519058A/ja
Priority to JP2025139060A priority Critical patent/JP2025172078A/ja
Application granted granted Critical
Publication of JP7764250B2 publication Critical patent/JP7764250B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022Non-woven fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/08Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/12Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by the relative arrangement of fibres or filaments of different layers, e.g. the fibres or filaments being parallel or perpendicular to each other
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/06Interconnection of layers permitting easy separation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00Layers arrangement
    • B32B2250/20All layers being fibrous or filamentary
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00Layers arrangement
    • B32B2250/40Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0223Vinyl resin fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0223Vinyl resin fibres
    • B32B2262/0238Vinyl halide, e.g. PVC, PVDC, PVF, PVDF
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0246Acrylic resin fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0253Polyolefin fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0261Polyamide fibres
    • B32B2262/0269Aromatic polyamide fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0276Polyester fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/04Cellulosic plastic fibres, e.g. rayon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06Vegetal fibres
    • B32B2262/062Cellulose fibres, e.g. cotton
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06Vegetal fibres
    • B32B2262/062Cellulose fibres, e.g. cotton
    • B32B2262/065Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/08Animal fibres, e.g. hair, wool, silk
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/12Conjugate fibres, e.g. core/sheath or side-by-side
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/14Mixture of at least two fibres made of different materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/10Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102Insulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/718Weight, e.g. weight per square meter
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2410/00Agriculture-related articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00Buildings or parts thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00Buildings or parts thereof
    • B32B2419/06Roofs, roof membranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00Containers; Receptacles
    • B32B2439/80Medical packaging
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2553/00Packaging equipment or accessories not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2555/00Personal care
    • B32B2555/02Diapers or napkins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2590/00Signboards, advertising panels, road signs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00Walls, panels
    • B32B2607/02Wall papers, wall coverings

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Laminated Bodies (AREA)
JP2021544374A 2019-01-31 2020-01-30 多層シート構造体 Active JP7764250B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2025139060A JP2025172078A (ja) 2019-01-31 2025-08-22 多層シート構造体

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US16/263,372 2019-01-31
US16/263,372 US11090901B2 (en) 2019-01-31 2019-01-31 Multilayer sheet structure
PCT/US2020/015964 WO2020160329A1 (en) 2019-01-31 2020-01-30 Multilayer sheet structure

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2025139060A Division JP2025172078A (ja) 2019-01-31 2025-08-22 多層シート構造体

Publications (2)

Publication Number Publication Date
JP2022519058A JP2022519058A (ja) 2022-03-18
JP7764250B2 true JP7764250B2 (ja) 2025-11-05

Family

ID=69740708

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2021544374A Active JP7764250B2 (ja) 2019-01-31 2020-01-30 多層シート構造体
JP2025139060A Pending JP2025172078A (ja) 2019-01-31 2025-08-22 多層シート構造体

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2025139060A Pending JP2025172078A (ja) 2019-01-31 2025-08-22 多層シート構造体

Country Status (6)

Country Link
US (1) US11090901B2 (https=)
EP (2) EP3917770A1 (https=)
JP (2) JP7764250B2 (https=)
KR (1) KR102886884B1 (https=)
CN (1) CN113573882A (https=)
WO (1) WO2020160329A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118880553A (zh) * 2024-08-07 2024-11-01 四川诚汇金环保科技有限公司 一种耐弱酸碱复合土工布的生产方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3069909U (ja) 1999-12-22 2000-07-04 谷口産業株式会社 防草マット
JP2003111525A (ja) 2001-10-04 2003-04-15 Toray Ind Inc 糖度アップシート
JP2018184776A (ja) 2017-04-26 2018-11-22 ユニチカ株式会社 透気防水シートの製造方法

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5484645A (en) 1991-10-30 1996-01-16 Fiberweb North America, Inc. Composite nonwoven fabric and articles produced therefrom
US5308691A (en) 1993-10-04 1994-05-03 E. I. Du Pont De Nemours And Company Controlled-porosity, calendered spunbonded/melt blown laminates
JPH07189107A (ja) * 1993-12-27 1995-07-25 New Oji Paper Co Ltd 積層不織布
JP3760599B2 (ja) * 1997-10-03 2006-03-29 チッソ株式会社 積層不織布及びそれを用いた吸収性物品
DE60012330T2 (de) * 1999-08-02 2005-07-28 E.I. Du Pont De Nemours And Co., Wilmington Verbundvliesmaterial
US6548431B1 (en) * 1999-12-20 2003-04-15 E. I. Du Pont De Nemours And Company Melt spun polyester nonwoven sheet
EP1280947B1 (en) 2000-05-11 2008-08-06 E.I. Du Pont De Nemours And Company Meltblown web
SE518035C2 (sv) * 2000-12-18 2002-08-20 Sca Hygiene Prod Ab Metod för framställning av ett nonwovenmaterial
WO2003048438A1 (fr) * 2001-12-07 2003-06-12 Ohki Co., Ltd. Nappe de filtration
KR100743751B1 (ko) 2003-04-22 2007-07-27 아사히 가세이 셍이 가부시키가이샤 고강도 부직포
JP4485765B2 (ja) * 2003-07-16 2010-06-23 呉羽テック株式会社 防草シート
EP1659382A1 (en) * 2003-08-25 2006-05-24 Takayasu CO., LTD. Sound absorbing material
US20060141886A1 (en) 2004-12-29 2006-06-29 Brock Thomas W Spunbond-meltblown-spunbond laminates made from biconstituent meltblown materials
JP4651573B2 (ja) * 2005-04-25 2011-03-16 花王株式会社 伸縮性不織布
US20100062671A1 (en) * 2008-09-05 2010-03-11 Nutek Disposables, Inc. Composite wipe
WO2010098792A1 (en) * 2009-02-27 2010-09-02 Exxonmobil Chemical Patents Inc. Multi-layer nonwoven in situ laminates and method of producing the same
US9972913B2 (en) * 2009-12-15 2018-05-15 Asahi Kasei Fibers Corporation Noise absorbing fabric
CN102965851A (zh) * 2012-11-26 2013-03-13 山东天鼎丰非织造布有限公司 熔纺聚酯非织造薄片
US9796154B2 (en) 2013-10-25 2017-10-24 Dow Global Technologies Llc Filmless backsheets with good barrier properties
US9580845B2 (en) 2014-06-09 2017-02-28 The Procter & Gamble Company Nonwoven substrate comprising fibers comprising an engineering thermoplastic polymer
GB2518055B (en) 2014-08-22 2015-08-12 Don & Low Ltd Improved fabric
JP6632296B2 (ja) * 2015-09-29 2020-01-22 ユニチカ株式会社 農業用マルチシート
JP2018176522A (ja) * 2017-04-11 2018-11-15 ダイワボウホールディングス株式会社 積層不織布およびその製造方法、液体含浸用シート、液体含浸シートならびにフェイスマスク

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3069909U (ja) 1999-12-22 2000-07-04 谷口産業株式会社 防草マット
JP2003111525A (ja) 2001-10-04 2003-04-15 Toray Ind Inc 糖度アップシート
JP2018184776A (ja) 2017-04-26 2018-11-22 ユニチカ株式会社 透気防水シートの製造方法

Also Published As

Publication number Publication date
KR102886884B1 (ko) 2025-11-18
KR20210125016A (ko) 2021-10-15
CN113573882A (zh) 2021-10-29
US11090901B2 (en) 2021-08-17
JP2022519058A (ja) 2022-03-18
EP4491388A3 (en) 2025-02-26
EP3917770A1 (en) 2021-12-08
EP4491388A2 (en) 2025-01-15
JP2025172078A (ja) 2025-11-20
US20200247087A1 (en) 2020-08-06
WO2020160329A1 (en) 2020-08-06

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