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    ADHESIVE SHEET, AND ADHESIVE SHEET PRODUCTION METHOD
    1.
    发明申请
    ADHESIVE SHEET, AND ADHESIVE SHEET PRODUCTION METHOD 审中-公开

    公开(公告)号：US20180282590A1

    公开(公告)日：2018-10-04

    申请号：US15763357

    申请日：2016-09-27

    Applicant: LINTEC CORPORATION

    Inventor： Yumiko AMINO ,  Kazue UEMURA ,  Kiichiro KATO

    IPC: C09J9/00 ,  C09J11/04 ,  C09J7/38 ,  C09J5/00 ,  C09J7/40 ,  C09J7/25

    Abstract: Provided a pressure sensitive adhesive sheet including a substrate or a release material having thereon a resin layer that contains a resin part (X) containing a carbon atom-containing resin having a carbon atom in a main chain of a constitutional unit as a main component, and a particle part (Y) consisting of fine particles containing silica particles, a surface (α) having pressure sensitive adhesiveness, the surface (α) having a concave portion and a flat face existing thereon, a prescribed section (P1) having existing on the side of the surface (α) a concave portion having a prescribed maximum height difference, and a flat portion corresponding to a cut portion of the flat face existing in a region (P) and being substantially in parallel to a surface of the substrate or the release material in contact with the resin layer, and an absolute value of a ratio of an intensity ratio of a peak intensity derived from silicon atoms and a peak intensity derived from carbon atoms measured by EDX a for a prescribed region (S) that is positioned under one of the concave portion existing on the cross section, and the intensity ratio measured by EDX for a prescribed region (T) that is positioned under one of the flat portion existing on the cross section being 0.2 or less.

    ADHESIVE SHEET AND METHOD FOR PRODUCING ADHESIVE SHEET
    3.
    发明申请
    ADHESIVE SHEET AND METHOD FOR PRODUCING ADHESIVE SHEET 审中-公开

    公开(公告)号：US20180273810A1

    公开(公告)日：2018-09-27

    申请号：US15763365

    申请日：2016-09-27

    Applicant: LINTEC CORPORATION

    Inventor： Kazue UEMURA ,  Kaisuke YANAGIMOTO ,  Kiichiro KATO

    IPC: C09J9/00 ,  C09J11/04 ,  C09J7/38 ,  C09J5/00 ,  C09J7/40 ,  C09J7/25

    Abstract: Provided is a pressure sensitive adhesive sheet including a resin layer that is a multilayer structure containing at least a layer (Xβ), a layer (Y1), and a layer (Xα) laminated in this order, a surface (α) of the layer (Xα) of the resin layer having pressure sensitive adhesiveness, at least a constitutional component contained in the layer (Y1) being different from constitutional components contained in the layer (Xα) and the layer (Xβ), on the prescribed cross section (P1) of the pressure sensitive adhesive sheet, in a range of 250 μm in a horizontal direction freely-selected, a difference between a maximum value and a minimum value of the layer (Xα) being 3.00 μm or more, and a difference between a maximum value and a minimum value of the layer (Y1) being 5.00 μm or more.

    ADHESIVE SHEET
    7.
    发明申请
    ADHESIVE SHEET 审中-公开

    公开(公告)号：US20180215961A1

    公开(公告)日：2018-08-02

    申请号：US15128676

    申请日：2015-04-02

    Applicant: LINTEC CORPORATION

    Inventor： Kazue UEMURA ,  Kiichiro KATO ,  Yumiko AMINO ,  Shigeru SAITO

    IPC: C09J7/38 ,  C09J11/04 ,  C09J7/25 ,  C09J7/40

    CPC classification number: C09J7/385 ,  C08K3/013 ,  C08K3/22 ,  C08K3/34 ,  C08K3/36 ,  C09J7/00 ,  C09J7/20 ,  C09J7/255 ,  C09J7/401 ,  C09J11/04 ,  C09J201/00 ,  C09J2201/28 ,  C09J2205/102 ,  C09J2433/00 ,  C09J2467/00 ,  C09J2483/005

    Abstract: Provided is a pressure sensitive adhesive sheet containing, on a substrate or a release material, a resin layer that includes a resin part (X) containing a resin as a main component, and a particle part (Y) consisting of fine particles, at least a surface (α) of the resin layer being opposite to the side thereof on which the substrate or the release material is provided having pressure sensitive adhesiveness, wherein plural concave portions having a maximum height difference of 0.5 μm or more exist in a prescribed region (P) on the surface (α), and 95% or more of the plural concave portions existing inside the region (P) have shapes differing from each other, and when the surface (α) of the resin layer is attached to a smooth surface of a light transmissive adherend having a smooth surface, the areal ratio of the attached area against the smooth surface of the light transmissive adherend to the surface (α) is 10 to 95%. When attached to an adherend, the pressure sensitive adhesive sheet can readily remove air accumulation to be formed and therefore exhibits excellent air escape property, and have good blister resistance and pressure sensitive adhesive characteristics.

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