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    • 11. 发明申请
    • OPTICAL SHEET AND METHOD FOR PRODUCING THE SAME
    • 光学片及其制造方法
    • US20100124631A1
    • 2010-05-20
    • US12617241
    • 2009-11-12
    • Tomoyuki HORIOMakoto HONDAKeiko TASAKITakashi KURODAEmi SHIMANOKana YAMAMOTO
    • Tomoyuki HORIOMakoto HONDAKeiko TASAKITakashi KURODAEmi SHIMANOKana YAMAMOTO
    • G02B5/00B32B5/02B05D5/06C08F2/48
    • G02B1/14G02B1/105Y10T428/24364Y10T428/24372Y10T428/24421
    • The main object of the present invention is to provide an optical sheet having excellent abrasion resistance and hardness, and a method for producing the same. The present invention provides an optical sheet in which a hard coat layer is provided on one surface of a substrate, wherein the hard coat layer comprises a cured product of a curable resin composition for a hard coat layer, which comprises reactive inorganic fine particles and a binder component, and wherein fine protrusions are provided on an interface on the side opposite to the substrate side of the hard coat layer, in which the minimum angle of each of the fine protrusions making angles with a virtual plane that is parallel to the hard coat layer is an acute angle. The present invention also provides a method for producing the optical sheet, comprising the steps of: forming a coating by applying a curable resin composition for a hard coat layer to one surface of a substrate, which composition comprising reactive, irregularly shaped silica fine particles and a binder component, and forming a hard coat layer and fine protrusions by curing the coating while or after preventing that the long axes of the reactive, irregularly shaped silica fine particles are each oriented in a direction planar to a virtual plane.
    • 本发明的主要目的是提供一种耐磨性和硬度优异的光学片及其制造方法。 本发明提供一种在基材的一个表面上设置硬涂层的光学片,其中,硬涂层包含硬涂层用固化性树脂组合物的固化物,其包含反应性无机微粒和 粘结剂组分,并且其中在与硬涂层的基材侧相对的一侧上的界面上设置有细突起,其中每个微细突起的最小角度与平行于硬涂层的虚拟平面形成角度 层是一个锐角。 本发明还提供了一种光学片的制造方法,其特征在于,包括以下步骤:通过在基材的一个表面上涂布硬涂层用固化性树脂组合物来形成涂层,所述组合物包含反应性,不规则形状的二氧化硅细颗粒和 粘合剂组分,并且在防止反应性不规则形状的二氧化硅细颗粒的长轴各自定向在与虚拟平面平行的方向上或之后,通过固化涂层来形成硬涂层和微细突起。