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    POLARIZING PLATE AND METHOD OF PRODUCING POLARIZING PLATE
    3.
    发明申请
    POLARIZING PLATE AND METHOD OF PRODUCING POLARIZING PLATE 有权
    极化板和生产偏光板的方法

    公开(公告)号：US20150177434A1

    公开(公告)日：2015-06-25

    申请号：US14564337

    申请日：2014-12-09

    Applicant: NITTO DENKO CORPORATION

    Inventor： Satoru Kunikata ,  Shusaku Goto ,  Minoru Miyatake ,  Kentarou Yoshida

    IPC: G02B5/30 ,  B32B37/00 ,  B32B38/08 ,  B32B37/24 ,  B32B27/30 ,  B32B38/00

    CPC classification number: G02B5/305 ,  B32B37/025 ,  B32B2037/243 ,  B32B2038/0028 ,  B32B2038/168 ,  B32B2309/105 ,  G02B5/3033 ,  Y10T428/31935

    Abstract: There is provided a method of producing a polarizing plate by which a polarizing film can be produced without the occurrence of a problem such as peeling between a resin substrate and a polyvinyl alcohol-based resin layer, and after the production of the polarizing film, the polarizing film and the resin substrate can be peeled without limitations on a peel direction and a peel angle, and a polarizing plate excellent in external appearance can be obtained. A method of producing a polarizing plate according to an embodiment of the present invention includes: applying an application liquid containing a polyvinyl alcohol-based resin and a surfactant onto a resin substrate to produce a laminate in which a polyvinyl alcohol-based resin layer is formed on the resin substrate; stretching and dyeing the polyvinyl alcohol-based resin layer formed on the resin substrate to produce a polarizing film; laminating an optical functional film on a polarizing film side of the laminate to produce an optical functional film laminate; and peeling the resin substrate from the optical functional film laminate. A content of the surfactant in the application liquid is less than 1 part by weight with respect to 100 parts by weight of the polyvinyl alcohol-based resin.

    Abstract translation: 提供一种制造偏振片的方法，通过该方法可以产生偏振膜，而不会出现树脂基板和聚乙烯醇类树脂层之间的剥离等问题，并且在制造偏振膜之后， 可以在剥离方向和剥离角度方面不受限制地剥离偏光膜和树脂基板，并且可以获得外观优异的偏振片。 根据本发明的实施方式的偏振片的制造方法包括：将含有聚乙烯醇系树脂和表面活性剂的涂布液涂布在树脂基板上，制造形成有聚乙烯醇系树脂层的层叠体 在树脂基板上; 对形成在树脂基板上的聚乙烯醇系树脂层进行拉伸染色，制作偏光膜; 在所述层叠体的偏振膜侧层叠光学功能膜，制造光学功能膜层压体; 以及从光学功能膜层压体剥离树脂基板。 相对于100重量份的聚乙烯醇类树脂，涂布液中的表面活性剂的含量小于1重量份。

    METHOD OF PRODUCING LAMINATE
    5.
    发明申请
    METHOD OF PRODUCING LAMINATE 有权
    生产层压板的方法

    公开(公告)号：US20150010763A1

    公开(公告)日：2015-01-08

    申请号：US14304125

    申请日：2014-06-13

    Applicant: NITTO DENKO CORPORATION

    Inventor： Naoki Tomoguchi ,  Toshihiro Kanno ,  Satoru Kunikata ,  Kentarou Yoshida

    IPC: C08J7/04 ,  B29D11/00

    CPC classification number: C08J7/047 ,  B29D11/0073 ,  C08J2367/02 ,  C08J2429/04 ,  Y10T428/31855

    Abstract: A method of producing a laminate according to an embodiment of the present invention includes applying an application liquid containing a polyvinyl alcohol-based resin to one side of a resin substrate, followed by drying of the application liquid to form a polyvinyl alcohol-based resin layer. The method includes: passing the application liquid before the application through a depth-type filter having a filtration accuracy of from 50 μm to 100 μm; and fluctuating a pressure applied to the application liquid supplied to the depth-type filter to remove air bubbles in the filter.

    Abstract translation: 根据本发明的一个实施方案的层压制品的制造方法包括将含有聚乙烯醇系树脂的涂布液涂布在树脂基材的一面上，然后干燥涂布液以形成聚乙烯醇系树脂层 。 该方法包括：通过具有50μm至100μm的过滤精度的深度型过滤器在施用前通过涂布液; 并且施加到提供给深度型过滤器的施加液体的压力波动以去除过滤器中的气泡。

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