首页> 外国专利> A method for producing a multi-layer film, a method for producing an optically anisotropic laminate, and a method for producing a circularly polarizing plate.

A method for producing a multi-layer film, a method for producing an optically anisotropic laminate, and a method for producing a circularly polarizing plate.

机译:一种制造多层膜的方法,一种制造光学各向异性层压材料的方法,以及制造圆偏振板的方法。

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method capable of manufacturing a multilayer film including a cured liquid crystal layer having few orientation defects. SOLUTION: The resin layer of a first base material containing a resin layer made of a thermoplastic resin having a glass transition temperature of Tg (° C.) contains a polymerizable liquid crystal compound and is cured by irradiation with active energy rays. In the step (1) of applying a liquid crystal composition to form a coating layer to obtain a first laminated body containing the first base material and the coating layer, the first laminated body is (Tg-). 20) A step of stretching under the condition of ° C. or higher (Tg + 20) ° C. to obtain a second laminate containing the first stretched base material and the oriented liquid crystal layer in which the polymerizable liquid crystal compound is oriented (2). , And the oriented liquid crystal layer of the second laminated body is irradiated with the active energy rays, the oriented liquid crystal layer is cured to form a cured liquid crystal layer, and the first stretched base material and the cured liquid crystal layer are formed. A method for producing a multilayer film, which comprises the step (3) of obtaining a multilayer film containing the same. [Selection diagram] None
机译:要解决的问题:提供一种能够制造包括具有少数取向缺陷的固化液晶层的多层膜的制造方法。溶液:含有由具有Tg(℃)的玻璃化转变温度的热塑性树脂制成的树脂层的第一基材的树脂层含有可聚合液晶化合物,并通过用活性能量射线照射来固化。在施加液晶组合物的步骤(1)中以形成涂层以获得含有第一基材和涂层的第一层叠体,第一层叠体是(TG-)。 20)在℃或更高(Tg + 20)℃的条件下拉伸的步骤,以获得含有第一拉伸基材和定向液晶化合物的定向液晶层的第二层压材料( 2)。并且,用活性能量射线照射第二层叠体的取向液晶层,使取向的液晶层固化以形成固化的液晶层,并且形成第一拉伸基材和固化的液晶层。一种制造多层膜的方法,其包括获得含有相同多层膜的步骤(3)。 [选择图]无

著录项

  • 公开/公告号JP2021086051A

    专利类型

  • 公开/公告日2021-06-03

    原文格式PDF

  • 申请/专利权人 日本ゼオン株式会社;

    申请/专利号JP20190215850

  • 发明设计人 幸本 壮悟;

    申请日2019-11-28

  • 分类号G02B5/30;B32B7/023;

  • 国家 JP

  • 入库时间 2022-08-24 19:12:43

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