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    COATED MICROSTRUCTURED FILMS, METHODS OF MAKING SAME, AND METHODS OF MAKING LIGHT CONTROL FILMS
    1.
    发明申请
    COATED MICROSTRUCTURED FILMS, METHODS OF MAKING SAME, AND METHODS OF MAKING LIGHT CONTROL FILMS 有权

    公开(公告)号：US20250130352A1

    公开(公告)日：2025-04-24

    申请号：US18681559

    申请日：2022-08-15

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Daniel J. Schmidt ,  Morgan A. Priolo ,  Caleb T. Nelson ,  Kevin W. Gotrik

    IPC: G02B5/00 ,  G02B1/04

    Abstract: The present disclosure provides a coated microstructured film (100a-c). The coated film includes microstructures (110) extending across a first surface of the microstructured film (100a-e) and a coating (130) on a first portion of at least some of the microstructures (110). The coating (130) includes one or more polyelectrolytes and has an average thickness T. A second portion of the coated microstructures either lacks the coating or has the coating with an average thickness of no more than 50% of T. The coating (130) is essentially free of any light absorptive material. A method of making the coated microstructured film (100a-c) is also provided. The method includes obtaining a microstructured film (100a), applying a coating (130) containing one or more polyelectrolytes to at least some of the microstructures (110), and removing at least some of the coating (130) from a second portion of the coated microstructures. Additionally, the present disclosure provides a method of making a light control film (110d. 100e). The method includes the above method as well as either infusing a light absorptive material into the coating of the coated microstructured film (100b-d) or applying a layer of a pigment on the coating. Such a light control film exhibits a transmission of visible light of 75% or greater at a viewing angle of 0 degrees.

    Light Control Film
    2.
    发明申请
    Light Control Film 有权

    公开(公告)号：US20240411061A1

    公开(公告)日：2024-12-12

    申请号：US18700470

    申请日：2022-10-17

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Raymond J. Kenney ,  Yehuda E. Altabet ,  John M. DeSutter ,  Kenneth A.P. Meyer ,  Nicholas C. Erickson ,  Martin B. Wolk ,  James M. Nelson ,  Daniel J. Schmidt ,  Caleb T. Nelson

    IPC: G02B5/00

    Abstract: A light control film includes a two-dimensional array of projections arranged across the light control film. A square of a magnitude of a Fourier transform frequency spectrum of the projections includes a plurality of distinct peaks separated by one or more valleys. The peaks and the one or more valleys have respective averages Pavg and Vavg, Pavg/Vavg≥5, such that when light from a substantially Lambertian light source is incident on the light control film, the light control film transmits the incident light with the transmitted light propagating along a transmission axis and having an intensity profile having a full width at half maximum of less than about 120 degrees in each cross-section of the intensity profile that comprises the transmission axis.

    OPTICAL FILM
    4.
    发明公开
    OPTICAL FILM 审中-公开

    公开(公告)号：US20240142673A1

    公开(公告)日：2024-05-02

    申请号：US17769280

    申请日：2020-10-29

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Tao Liu ,  Gary T. Boyd ,  Daniel J. Schmidt ,  Caleb T. Nelson ,  Owen M. Anderson ,  Tri D. Pham

    IPC: G02B3/08 ,  G02B1/10

    CPC classification number: G02B3/08 ,  G02B1/10

    Abstract: An optical film has a major surface including a plurality of microstructures. Each microstructure includes an optical facet and a sidewall meeting the optical facet at a ridge of the microstructure. The optical facet and the sidewall define an oblique angle therebetween. For each microstructure in at least a majority of the microstructures, an optically absorptive layer is disposed on the sidewall. The optical film can include a polymeric layer having a microstructured surface at least partially coated with an inorganic optically transparent layer. The optically absorptive layer can an average thickness t where 100 nm

    ABRASIVE ARTICLES INCLUDING CONFORMABLE COATINGS AND POLISHING SYSTEM THEREFROM
    6.
    发明申请
    ABRASIVE ARTICLES INCLUDING CONFORMABLE COATINGS AND POLISHING SYSTEM THEREFROM 审中-公开

    公开(公告)号：US20200172780A1

    公开(公告)日：2020-06-04

    申请号：US16629769

    申请日：2018-07-05

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Chi-Fan Chen ,  Caleb T. Nelson ,  Moses M. David

    IPC: C09K3/14 ,  B24B53/12 ,  B24D11/00

    Abstract: The present disclosure relates to abrasive articles including conformable coatings, e.g. a hydrophobic coating, methods of making and polishing systems therefrom. The present disclosure provides an abrasive layer, having a hydrophobic exterior surface, including at least one of (i) a plurality of individual diamond particles and (ii) a plurality of engineered features having a conformable diamond layer and; a conformable hydrophobic layer in contact with and at least partially coating at least one of the plurality of individual diamond particles and the conformable diamond layer and, wherein the conformable hydrophobic layer includes diamond like glass and forms the hydrophobic exterior surface and the contact angle of the hydrophobic exterior surface is greater than 110 degrees.

    FLUID CONTROL FILMS WITH HYDROPHILIC SURFACES, METHODS OF MAKING SAME, AND PROCESSES FOR CLEANING STRUCTURED SURFACES
    7.
    发明申请
    FLUID CONTROL FILMS WITH HYDROPHILIC SURFACES, METHODS OF MAKING SAME, AND PROCESSES FOR CLEANING STRUCTURED SURFACES 审中-公开
    具有水力表面的流体控制膜，其制造方法和清洁结构表面的方法

    公开(公告)号：US20170045284A1

    公开(公告)日：2017-02-16

    申请号：US15305524

    申请日：2015-04-22

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Adam J. Meuler ,  Susannah C. Clear ,  Steven P. Swanson ,  Kurt J. Halverson ,  Justin A. Riddle ,  Paul B. Armstrong ,  Caleb T. Nelson ,  Chetan P. Jariwala

    IPC: F25D21/14 ,  B08B3/10 ,  F15D1/00 ,  B08B1/00

    CPC classification number: F25D21/14 ,  B08B1/006 ,  B08B3/10 ,  B32B3/30 ,  B32B7/06 ,  B32B7/12 ,  C08J5/18 ,  F15D1/003 ,  F15D1/0085 ,  Y10T428/2457 ,  Y10T428/24579 ,  Y10T428/24612

    Abstract: A fluid control film is provided that includes fluid control channels extending along a channel longitudinal axis. Each of the fluid control channels has a surface and is configured to allow capillary movement of liquid in the channels. The fluid control film further includes a hydrophilic surface treatment covalently bonded to at least a portion of the surface of the fluid control channels. The fluid control film exhibits a capillary rise percent recovery of at least ten percent. Typically, the hydrophilic surface treatment includes functional groups selected from a non-zwitterionic sulfonate, a non-zwitterionic carboxylate, a zwitterionic sulfonate, a zwitterionic carboxylate, a zwitterionic phosphate, a zwitterionic phosphonic acid, and/or a zwitterionic phosphonate. A process for forming a fluid control film is also provided. Further, a process for cleaning a structured surface is provided, including providing a structured surface and a hydrophilic surface treatment covalently bonded to at least a portion of the structured surface, and soiling the structured surface with a material. The process also includes removing the material by at least one of submerging the structured surface in an aqueous fluid, rinsing the structured surface with an aqueous fluid, condensing an aqueous fluid on the structure surface, or wiping the structured surface with a cleaning implement.

    Abstract translation: 提供流体控制膜，其包括沿着通道纵向轴线延伸的流体控制通道。 每个流体控制通道具有表面并且被构造成允许液体在通道中的毛细管移动。 流体控制膜还包括共价键合到流体控制通道的表面的至少一部分的亲水性表面处理。 流体控制膜表现出至少10％的毛细管上升百分比回收率。 通常，亲水表面处理包括选自非两性离子磺酸盐，非两性离子羧酸盐，两性离子磺酸盐，两性离子羧酸盐，两性离子磷酸盐，两性离子膦酸和/或两性离子膦酸盐的官能团。 还提供了一种用于形成流体控制膜的工艺。 此外，提供了一种用于清洁结构化表面的方法，包括提供结构化表面和共价键合到结构化表面的至少一部分的亲水表面处理，并且用材料污染结构化表面。 该方法还包括通过将结构化表面浸没在水性流体中的至少一种来去除材料，用水性流体冲洗结构化表面，在结构表面上冷凝水性流体，或用清洁工具擦拭结构化表面。

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