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    OPTICAL FILM, OPTICAL CONSTRUCTION, AND DISPLAY SYSTEM
    34.
    发明申请
    OPTICAL FILM, OPTICAL CONSTRUCTION, AND DISPLAY SYSTEM 有权

    公开(公告)号：US20250076555A1

    公开(公告)日：2025-03-06

    申请号：US18950497

    申请日：2024-11-18

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Bharat R. Acharya ,  Brett J. Sitter ,  Robert D. Taylor ,  Zhicheng Tian ,  James P. DiZio ,  Quinn D. Sanford ,  Kent C. Hackbarth ,  Matthew E. Sousa

    IPC: G02B5/30 ,  G02B1/04 ,  G02B5/26 ,  G06V40/13

    Abstract: An optical construction includes a reflective polarizer and an optical film. The optical film includes a matrix and a plurality of first particles dispersed in the matrix. Each of the matrix and the plurality of first particles includes a silicone polyoxamide and an acrylate polymer. For substantially normally incident light and for at least a first wavelength in a first wavelength range, the reflective polarizer reflects about 60% for a first polarization state and transmits about 40% for an orthogonal second polarization state. For at least a second wavelength in a second wavelength range, each of the reflective polarizer and the optical film transmits about 60% of an incident light for each of the first and second polarization states. For at least the first wavelength, optical film has an optical haze and a depolarization ratio. A ratio of the depolarization ratio to the optical haze is less than 0.1.

    Tape including electrically conductive porous medium
    35.
    发明授权
    Tape including electrically conductive porous medium 有权

    公开(公告)号：US12241008B2

    公开(公告)日：2025-03-04

    申请号：US18560465

    申请日：2021-05-26

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Hongyu Gan ,  Yan Wu ,  Jie Huang ,  Jing Fang ,  Jeffrey W. McCutcheon

    IPC: C09J9/02 ,  C09J7/21 ,  C09J7/22

    Abstract: A tape includes an electrically conductive adhesive first layer having opposite outermost first and second major surfaces. The first layer includes an electrically conductive porous medium and an adhesive disposed in, and extending through a thickness of, the porous medium to define at the first major surface, first regions of exposed adhesive and first regions of exposed porous medium and to define at the second major surface, second regions of exposed adhesive and second regions of exposed porous medium. The second major surface has a higher fraction of exposed porous medium than the first major surface. The porous medium can be a nonwoven fabric and the regions of exposed porous medium can be regions of exposed fibers.

    ADHESIVE FILM, ADHESIVE SYSTEM, AND RELATED PROCESSES
    36.
    发明申请
    ADHESIVE FILM, ADHESIVE SYSTEM, AND RELATED PROCESSES 有权

    公开(公告)号：US20250066646A1

    公开(公告)日：2025-02-27

    申请号：US18720807

    申请日：2022-12-16

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Kerstin Unverhau ,  Silke D. Mechernich ,  Frank Kuester ,  Olaf W. van GAnsewinkel ,  Hans Peter Dette

    IPC: C09J133/08 ,  C08F220/06 ,  C08F220/14 ,  C08F220/18 ,  C08F222/10 ,  C09J5/08 ,  C09J133/12

    Abstract: An adhesive film includes a first (meth)acrylate copolymer containing at least 55 weight percent (wt. %) of linear or branched alkyl (meth)acrylate monomer units, from 15 to 40 wt. % of (meth)acrylic acid monomer units, and 0.1 to 5 wt. % of monomer units of a crosslinking monomer having more than one (meth)acrylate group. If the first (meth)acrylate copolymer comprises 15 wt. % (meth)acrylic acid monomer units, the first (meth)acrylate copolymer comprises at least five wt. % monomer units of a high Tg monomer. The adhesive film comprises not more than five wt. % of a further (meth)acrylate copolymer comprising from 0.1 to 15 wt. % of (meth)acrylic acid monomer units. The adhesive film can be a multilayer adhesive assembly including a first layer of the first (meth)acrylate copolymer and a second adhesive layer adjacent to the first layer. A process for making and a system including the adhesive film and a primer are also described.

    SOLID EFFERVESCENT COMPOSITION COMPRISING ANTIMICROBIAL
    37.
    发明申请
    SOLID EFFERVESCENT COMPOSITION COMPRISING ANTIMICROBIAL 有权

    公开(公告)号：US20250064055A1

    公开(公告)日：2025-02-27

    申请号：US18787141

    申请日：2024-07-29

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Yifan Zhang ,  Narina Stepanova ,  Lylien Zhang ,  Yinshi Jin

    IPC: A01N25/18 ,  A01N25/10 ,  A01N25/34 ,  A01N31/02

    Abstract: A solid effervescent cleaning composition is described comprising one or more acids and a gas generator; wherein a 1 wt. % aqueous solution of the solid cleaning composition has a pH in a range of 4 to 9; and at least one antimicrobial compound. In some embodiments, a 1 wt. % aqueous solution of the solid effervescent cleaning composition provides at least a 3 log reduction for both gram position and gram negative bacteria. In some embodiments, the antimicrobial compound is selected from aromatic alcohols; aliphatic alcohols, optionally further comprising an ester moiety; and combinations thereof. Also described is a (e.g. dry) wipe comprising a woven or nonwoven substrate further comprising the solid effervescent cleaning composition described herein; and cleaning tools with handles.

    Silicone elastomers by free radical mediated cure
    38.
    发明授权
    Silicone elastomers by free radical mediated cure 有权

    公开(公告)号：US12234389B2

    公开(公告)日：2025-02-25

    申请号：US17764744

    申请日：2020-09-25

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Michele A. Craton ,  Rajdeep S. Kalgutkar ,  Kim M. Vogel ,  Dennis E. Vogel

    IPC: C09J183/04 ,  C08G77/00 ,  C08G77/16 ,  C09J183/06

    Abstract: Curable compositions of this disclosure comprise a mixture of: a silanol, a free radical initiator, an iodonium salt; and optionally an alkoxysilane, and/or an MQ resin, and/or (meth)acrylate monomer(s). In another aspect, cured compositions of this disclosure comprise: a cured silicone, a free radical initiator or residue thereof, an iodonium salt or residue thereof; and optionally a poly(meth)acrylate and/or an MQ resin, which may comprise the cured silicone. In another aspect, cured compositions of this disclosure comprise: a continuous phase of cured silicone, a discontinuous phase of poly(meth)acrylate inclusions, and optionally an MQ resin, which may comprise the cured silicone. The poly(meth)acrylate inclusions may have an average diameter of less than 1.0 micrometer or smaller. The compositions may be pressure sensitive adhesives. The curable and cured compositions may be solvent-free.

    Optical Inspection System for Detecting Surface Profile Defects in Manufactured Webs
    40.
    发明申请
    Optical Inspection System for Detecting Surface Profile Defects in Manufactured Webs 有权

    公开(公告)号：US20250060319A1

    公开(公告)日：2025-02-20

    申请号：US18717860

    申请日：2022-12-13

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Steven P. Floeder ,  Katherine E. Struthers ,  Taylor E. Hoensheid ,  Jeffrey P. Adolf

    IPC: G01N21/89 ,  G01N21/88 ,  G01N21/892

    Abstract: Systems and techniques are described for detecting surface profile defects within a moving web. An example system includes a conveyor configured to translate the web, along a downweb direction and at a translation speed, relative to an inspection area; a point light source configured to emit light, wherein the point light source is positioned and oriented relative to the conveyor to illuminate a portion of the web positioned within the inspection area; a diffusing screen positioned and oriented relative to the conveyor to receive the light reflected from the web as the web is translated through the inspection area; an image capture device configured to capture images of the diffusing screen; and a computing device configured to: identify, based on the images, a surface profile defect in a surface of web; and output data indicating a relative location of the defect within the web.

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