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    PRESSURE-SENSITIVE ADHESIVE COMPOSITION, SURFACE PROTECTIVE FILM, AND OPTICAL MEMBER
    4.
    发明申请
    PRESSURE-SENSITIVE ADHESIVE COMPOSITION, SURFACE PROTECTIVE FILM, AND OPTICAL MEMBER 审中-公开
    压敏粘合剂组合物，表面保护膜和光学部件

    公开(公告)号：US20140377551A1

    公开(公告)日：2014-12-25

    申请号：US14310441

    申请日：2014-06-20

    Applicant: NITTO DENKO CORPORATION

    Inventor： Kenichi KATAOKA ,  Tatsumi AMANO

    IPC: C09J133/08 ,  H01B1/22

    CPC classification number: C09J133/066 ,  C08G65/336 ,  C08L33/06 ,  C08L83/04 ,  C09J171/02 ,  C09J2433/00 ,  H01B1/122 ,  Y10T428/2848 ,  Y10T428/2857 ,  Y10T428/2891

    Abstract: Provided is a pressure-sensitive adhesive composition for acrylic film protection which can forma surface protective film (pressure-sensitive adhesive sheet) excellent in antistatic properties, adherability, removability and workability for acrylic films (acrylic resins) and usable for acrylic film protection. The pressure-sensitive adhesive composition for acrylic film protection of the invention contains a (meth)acrylic polymer containing a (meth)acrylic monomer having an alkyl group of 1 to 14 carbon atoms in a proportion of 50 to 99.9 wt % as a monomer component, a tri-functional isocyanate crosslinking agent, a di-functional isocyanate crosslinking agent, an organopolysiloxane having oxyalkylene chains, and an ionic compound.

    Abstract translation: 提供一种丙烯酸酯保护用粘合剂组合物，其可以形成丙烯酸类膜（丙烯酸类树脂）的抗静电性，粘合性，可除去性和加工性优异且可用于丙烯酸类膜保护的表面保护膜（压敏粘合片）。 本发明的丙烯酸酯保护用粘合剂组合物含有（甲基）丙烯酸系聚合物，其含有比例为50〜99.9重量％的碳原子数为1〜14的（甲基）丙烯酸单体作为单体成分 三官能异氰酸酯交联剂，二官能异氰酸酯交联剂，具有氧化烯链的有机聚硅氧烷和离子化合物。

    REINFORCING FILM
    5.
    发明申请
    REINFORCING FILM 审中-公开

    公开(公告)号：US20200291269A1

    公开(公告)日：2020-09-17

    申请号：US16650931

    申请日：2018-09-18

    Applicant: NITTO DENKO CORPORATION

    Inventor： Takeshi NAKANO ,  Keiji HAYASHI ,  Souya JO ,  Shogo SASAKI ,  Kenichi KATAOKA

    IPC: C09J7/38 ,  C09J133/08 ,  B32B27/36 ,  B32B7/12

    Abstract: A reinforcing film comprises a pressure sensitive adhesive layer laminated and fixed on a principal surface of a film substrate. The pressure sensitive adhesive layer is formed of a photocurable composition containing a photocurable agent and a base polymer having a crosslinked structure. A frictional force of the pressure sensitive adhesive layer measured with a frictional force microscope at a frequency of 5 Hz is preferably 2 to 5 times a frictional force at a frequency of 0.1 Hz. After photocuring of the pressure sensitive adhesive layer, a frictional force of a photocured pressure sensitive adhesive layer measured with the frictional force microscope at a frequency of 5 Hz is preferably not less than 5 times a frictional force measured at a frequency of 0.1 Hz.

    REINFORCING FILM
    6.
    发明申请
    REINFORCING FILM 审中-公开

    公开(公告)号：US20200231846A1

    公开(公告)日：2020-07-23

    申请号：US16650764

    申请日：2018-09-18

    Applicant: NITTO DENKO CORPORATION

    Inventor： Takeshi NAKANO ,  Keiji HAYASHI ,  Souya JO ,  Shogo SASAKI ,  Kenichi KATAOKA

    IPC: C09J7/38 ,  C09J133/08

    Abstract: A reinforcing film comprises a pressure sensitive adhesive layer laminated and fixed on a principal surface of a film substrate. The pressure sensitive adhesive layer is formed of a photocurable composition containing a photocurable agent and a base polymer having a crosslinked structure. The gel fraction of the photocurable composition is preferably 60% or more. The shear storage elastic modulus at 25° C. of the pressure sensitive adhesive layer is preferably 1×104 to 1.2×105 Pa. The shear storage elastic modulus at 25° C. of the pressure sensitive adhesive layer after photocuring is preferably 1.5×105 to 2×106 Pa.

    SURFACE PROTECTING FILM
    8.
    发明申请
    SURFACE PROTECTING FILM 审中-公开
    表面保护膜

    公开(公告)号：US20130251971A1

    公开(公告)日：2013-09-26

    申请号：US13849157

    申请日：2013-03-22

    Applicant: NITTO DENKO CORPORATION

    Inventor： Kenichi KATAOKA ,  Hiromoto HARUTA ,  Tatsumi AMANO

    IPC: C09J7/02

    CPC classification number: C09J7/255 ,  C08K3/017 ,  C09J7/29 ,  C09J2201/606 ,  C09J2201/622 ,  C09J2203/318 ,  C09J2205/106 ,  C09J2433/00 ,  C09J2467/006 ,  G02F1/1333 ,  G02F2201/50 ,  Y10T428/28 ,  Y10T428/2891

    Abstract: The present invention provides a surface protecting film which can suppress rainbow unevenness attributed to itself, makes appearance inspection smooth, and is excellent in workability at the time of inspection of an optical member by a Crossed Nicols method by employing a surface protecting film having a specified degree of orientation in a specified width direction. The surface protecting film of the present invention has a pressure-sensitive adhesive layer on at least one surface of a substrate, the substrate is a polyester film and polyester film has a degree of orientation in the width direction of 1.5 m in a range of 75 to 90°.

    Abstract translation: 本发明提供一种能够抑制归因于其自身的彩虹不均匀性，使外观检查光滑的表面保护膜，通过使用具有规定的表面保护膜的交叉尼科尔方法在检查光学部件时的加工性优异的表面保护膜 指定宽度方向的取向度。 本发明的表面保护膜在基材的至少一个表面上具有压敏粘合剂层，基材是聚酯膜，聚酯膜在宽度方向上的取向度为1.5μm，范围为75 至90°。

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