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    • 3. 发明授权
    • Process for forming silicon oxide coating on plastic material
    • 在塑料材料上形成氧化硅涂层的工艺
    • US06254983B1
    • 2001-07-03
    • US08575618
    • 1995-12-20
    • Tsunehisa Namiki
    • Tsunehisa Namiki
    • B32B1312
    • C23C16/402C23C14/046C23C16/045Y10T428/1352Y10T428/24967Y10T428/24975Y10T428/265Y10T428/31507Y10T428/31667
    • This invention is to provide a three-dimensional plastic vessel of excellent gas-impermeability and a process for forming a film having uniform thickness and high gas-interception to a three-dimensional plastic vessel to produce the vessel. A plastic three-dimensional vessel, having a Tg higher than the coating temperature, excellent in gas-interception, that is coated with a silicon oxide film having a refractive index of 1.4 to 1.5, a thickness of 300 Å to 2000 Å and composition of SiOx (x=1.5 to 2.0) is provided. The process includes coating a silicon oxide film, excellent in gas-impermeability, on the plastic vessel of three-dimensional shape, said plastic being a material that has a Tg higher than the coating temperature of the silicon oxide thin film. A high-frequency electrode is placed on the surface side on which the coating is not formed and the location of the high-frequency electrode is nearly constant in a distance not more than 10 mm from the electrode surface to the vessel surface on which the coating is formed. An electrode for ground connection is placed in the surface side on which the coating is formed and the location of the ground connection electrode is nearly constant in a distance from the electrode surface to the vessel surface, which distance is greater than the distance from the high-frequency electrode surface to the vessel surface on which the coating is formed. The silicon oxide film is coated in a uniform thickness to the surface which faces to the ground connection electrode by introducing the plasma of the silicon oxide produced by CVD process in between the vessel and the ground connection electrode with a discharge has pressure of 0.0005 to 0.05 torr.
    • 本发明提供一种具有优异的气体不透性的三维塑料容器,以及一种用于形成具有均匀厚度和高气体拦截的膜的方法,用于制造三维塑料容器。 具有高于涂布温度的Tg的塑料三维容器,气体截留性优异,涂覆有折射率为1.4至1.5的氧化硅膜,厚度为300埃至2000埃,组成为 提供SiOx(x = 1.5〜2.0)。 该方法包括在三维形状的塑料容器上涂覆气体不透性优异的氧化硅膜,所述塑料是Tg高于氧化硅薄膜的涂层温度的材料。 将高频电极放置在没有形成涂层的表面侧,并且高频电极的位置距电极表面至其上的涂层的容器表面不超过10mm的距离几乎恒定 形成了。 用于接地的电极放置在其上形成涂层的表面侧,并且接地连接电极的位置距离电极表面至容器表面的距离几乎恒定,该距离大于距离高度的距离 电极表面形成在其上形成涂层的容器表面上。氧化硅膜通过将通过CVD工艺产生的氧化硅的等离子体引入到介电层之间,以均匀的厚度涂覆到与接地连接电极相对的表面上 容器和具有放电的接地连接电极的压力为0.0005至0.05托。