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    COMPOSITIONS COMPRISING NANOPARTICLES FUNCTIONALIZED WITH AN ALPHA-HYDROXY ACID OR SALT, ARTICLES, AND METHODS
    2.
    发明申请
    COMPOSITIONS COMPRISING NANOPARTICLES FUNCTIONALIZED WITH AN ALPHA-HYDROXY ACID OR SALT, ARTICLES, AND METHODS 审中-公开

    公开(公告)号：US20200325348A1

    公开(公告)日：2020-10-15

    申请号：US16305918

    申请日：2017-06-14

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Daniel J. Schmidt ,  Benjamin R. Coonce ,  Richard S. Buckanin

    IPC: C09D7/62 ,  G02B5/08 ,  C08K9/04 ,  C09D1/00 ,  C09D5/33

    Abstract: A composition is provided, including water, a base, and surface-modified inorganic oxide nanoparticles dispersed in the water. The nanoparticles are functionalized with an alpha-hydroxy acid or its salt. An article is also provided, including a substrate in and layers containing bi-layers. A portion of the layers include surface-modified inorganic oxide nanoparticles functionalized with an alpha-hydroxy acid or its salt. A dielectric mirror is also provided, including a substrate, a first stack of bi-layers disposed on the substrate, and a second stack of bi-layers positioned in planar contact with the first stack. The second stack of bi-layers exhibits a refractive index of less than 1.50. Further, an exposed lens retroreflective article is provided including a binder layer, a layer of transparent microspheres partially embedded in the binder layer, and a reflective layer between the binder layer and the microspheres including a dielectric mirror. Additionally, methods of making compositions and articles are provided.

    Coatable composition, antistatic composition, antistatic articles, and methods of making the same
    3.
    发明授权
    Coatable composition, antistatic composition, antistatic articles, and methods of making the same 有权

    公开(公告)号：US10400109B2

    公开(公告)日：2019-09-03

    申请号：US15026850

    申请日：2013-10-04

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Naiyong Jing ,  Xuan Jiang ,  Justin A. Riddle ,  Fuxia Sun ,  Daniel J. Schmidt

    IPC: C09D1/00 ,  C03C17/23 ,  C08J7/06 ,  C09D7/61 ,  C08K3/36

    Abstract: A method of making a coatable composition includes: providing a first composition comprising silica nanoparticles dispersed in an aqueous liquid vehicle, wherein the first composition has a pH greater than 6; acidifying the first composition to a pH of less than or equal to 4 using inorganic acid to provide a second composition; and dissolving at least one metal compound in the second composition to form the coatable composition. The silica nanoparticles have a polymodal particle size distribution, wherein the polymodal particle size distribution comprises a first mode having a first particle size in the range of from 8 to 35 nanometers, wherein the polymodal particle size distribution comprises a second mode having a second particle size in the range of from 2 to 20 nanometers, wherein the first particle size is greater than the second particle size. Coatable compositions, antistatic compositions, preparable by the method are also disclosed. Soil-resistant articles including the antistatic compositions are also disclosed.

    OPTICAL FILTER
    5.
    发明申请
    OPTICAL FILTER 审中-公开

    公开(公告)号：US20190137669A1

    公开(公告)日：2019-05-09

    申请号：US16095406

    申请日：2017-05-30

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： John A. Wheatley ,  Gilles J. Benoit ,  Todd A. Ballen ,  Kenneth L. Smith ,  Guanglei Du ,  Edward J. Kivel ,  Rolf W. Biernath ,  Jordan D. Whitney ,  Daniel J. Schmidt

    IPC: G02B5/20 ,  G02B27/28 ,  G02B5/26 ,  G02B5/30

    Abstract: An optical filter including a polarizer and a visible light blocking filter is described. The polarizer is configured to transmit at least 60 percent of light in a first infrared wavelength range that is incident on the polarizer at normal incidence in a first polarization state, to transmit less than 30 percent of light in a second infrared wavelength that is incident on the polarizer at normal incidence in a second polarization state orthogonal to the first polarization state, and to transmit less than 30 percent of light in a third infrared wavelength range that is incident on the polarizer with a 50 degree angle of incidence in the second polarization state. The visible light blocking filter configured to transmit at least 60 percent of light in the first infrared wavelength range at normal incidence in the first polarization state.

    Exposed lens retroreflective articles comprising a self-assembled dielectric mirror
    7.
    发明授权
    Exposed lens retroreflective articles comprising a self-assembled dielectric mirror 有权

    公开(公告)号：US10054724B2

    公开(公告)日：2018-08-21

    申请号：US15504037

    申请日：2015-04-30

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Michael A. McCoy ,  Daniel J. Schmidt ,  Shri Niwas ,  Ying Xia

    IPC: G02B5/128 ,  G02B5/08 ,  B29D11/00 ,  B82Y30/00

    CPC classification number: G02B5/128 ,  B29D11/00615 ,  B82Y30/00 ,  G02B5/0825 ,  G02B5/0883

    Abstract: An exposed lens retroreflective article (100), transfer articles comprising same, and methods of making same. The retroreflective article can include a binder layer (114); a layer of transparent microspheres (108) partially embedded in the binder layer; and reflective layer (110) disposed between the binder layer and the microspheres. The reflective layer (110) can include a dielectric mirror, which can include a first stack (115) and a second stack (111) positioned in planar contact with the first stack, wherein each of the first stack and the second stack comprises at least one bilayer (119), wherein each bilayer comprises a first material with a first bonding group and a second material with a complementary second bonding group. The transfer article can include the retroreflective article and a carrier web. The method can include partially embedding transparent microspheres in a carrier web; applying the reflective layer to the microspheres, and applying a binder layer composition to the reflective layer.

    METHOD OF MAKING MULTILAYER OPTICAL FILM COMPRISING LAYER-BY-LAYER SELF-ASSEMBLED LAYERS AND ARTICLES
    10.
    发明申请
    METHOD OF MAKING MULTILAYER OPTICAL FILM COMPRISING LAYER-BY-LAYER SELF-ASSEMBLED LAYERS AND ARTICLES 有权
    制备包层层叠自覆层和文章的多层光学膜的方法

    公开(公告)号：US20150285956A1

    公开(公告)日：2015-10-08

    申请号：US14435186

    申请日：2013-12-04

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Daniel J. Schmidt ,  James R. Miller ,  Timothy J. Hebrink ,  Mark B. O'Neill

    IPC: G02B1/111 ,  G02B5/30 ,  G02B5/08

    CPC classification number: G02B1/111 ,  G02B1/005 ,  G02B1/105 ,  G02B1/14 ,  G02B5/0816 ,  G02B5/0841 ,  G02B5/0891 ,  G02B5/287 ,  G02B5/3083 ,  G09G3/3406

    Abstract: Methods of making a multilayer optical film are described. In one embodiment, the method comprises providing a multilayer optical film and disposing onto the multilayer optical film a plurality of layers deposited by layer-by-layer self-assembly of nanoparticles, polymers, and combinations thereof. The multilayer optical film typically comprises a plurality of alternating polymeric layers of a low refractive index layer and a high refractive index layer that reflects at least one bandwidth of electromagnetic radiation ranging from ultraviolet to near infrared. Multilayer optical film articles are described comprising a plurality of layers disposed onto the multilayer optical film, wherein the plurality of layers comprises layer-by-layer self-assembled nanoparticles, polymers, and combinations thereof. The multilayer optical films are suitable for various uses including reflective polarizers for optical displays such as LCDs or LEDs, architectural film applications, window film applications, and solar power concentrating mirrors.

    Abstract translation: 描述制备多层光学膜的方法。 在一个实施例中，该方法包括提供多层光学膜并且通过逐层自组装纳米颗粒，聚合物及其组合在多层光学膜上设置沉积的多个层。 多层光学膜通常包括多个低折射率层和高折射率层的交替聚合层，其反射从紫外线到近红外线的电磁辐射的至少一个带宽。 描述了包括设置在多层光学膜上的多个层的多层光学膜制品，其中多个层包括逐层自组装纳米颗粒，聚合物及其组合。 多层光学膜适用于各种用途，包括用于诸如LCD或LED的光学显示器的反射偏振器，建筑薄膜应用，窗膜应用和太阳能集中反射镜。

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