Method of protecting glass substrate surfaces
    2.
    发明授权
    Method of protecting glass substrate surfaces 失效
    保护玻璃基板表面的方法

    公开(公告)号:US06689414B2

    公开(公告)日:2004-02-10

    申请号:US09565725

    申请日:2000-05-05

    IPC分类号: B65B3300

    摘要: A method of protecting a glass substrate, especially a display glass or a hard disk blank made from a glass or a glass-ceramic, from unacceptable surface damage and scratches, often leading to glass breakage, during processing and transport, is described. This protective method includes applying a removable protective coating made of at least one polymer layer, or at least one polyvinyl alcohol layer, to the glass substrates by spraying or rolling the polyvinyl alcohol or a polymer solution of the polymer to be applied in a polar organic solvent, onto the glass substrate, or dipping the substrate into it. Then when the substrate is ready for its end use, the protective coating is removed by washing in water or polar organic solution so that a residue does not remain on it. The glass substrates, protected in this manner have outstanding surface quality and improved hard disk blanks can be economically produced from them.

    摘要翻译: 描述了在加工和运输期间保护玻璃基板,特别是玻璃或玻璃陶瓷制成的显示器玻璃或硬盘坯料免受不可接受的表面损伤和擦伤(通常导致玻璃破裂)的方法。 该保护方法包括通过将聚乙烯醇或要施用于极性有机物中的聚合物的聚合物溶液喷雾或滚动,将由至少一个聚合物层或至少一个聚乙烯醇层制成的可移除的保护涂层施加到玻璃基底上 溶剂,到玻璃基板上,或将基板浸入其中。 然后当基材准备好用于其最终用途时,通过在水或极性有机溶液中洗涤除去保护涂层,使得残留物不残留在其上。 以这种方式保护的玻璃基板具有出色的表面质量,并且可以从其经济地制造改进的硬盘坯料。

    Method and apparatus for making individual glass panes
    4.
    发明授权
    Method and apparatus for making individual glass panes 失效
    制作单个玻璃板的方法和装置

    公开(公告)号:US06502423B1

    公开(公告)日:2003-01-07

    申请号:US09557834

    申请日:2000-04-26

    IPC分类号: C03B1802

    摘要: A method and apparatus is described, with which individual rectangular glass panes of thickness between 0.03 mm and 2 mm can be cut from a glass band (2) drawn vertically from a hot forming device (1) in an in-line process with reduced rejects and reduced waste. The method provides that the glass band (2) drawn vertically downward through a vertical zone is cooled below a lower cooling point of the glass and subsequently is deflected through a bending zone (3b) with a bending radius between 0.1 m and 4 m into a horizontal zone (3c) in which it is horizontally oriented. The vertical alignment of the glass band (2) in the vertical zone (3a) is continuously monitored. At least one cutting process is performed on the horizontally oriented glass band (2) in the horizontal zone (3c). The device (20) for monitoring the vertical alignment of the glass band (2) includes at least three sensors (22a, 22b, 22c; 22a′, 22b′, 22c′) that detect the glass edges These sensors can be mechanical rollers.

    摘要翻译: 描述了一种方法和装置,其中可以从在热成型装置(1)垂直拉制的玻璃带(2)中以从属方式排列的具有减少的废品的在线方法切割厚度在0.03mm和2mm之间的单个矩形玻璃板 并减少浪费。 该方法提供了通过垂直区域垂直向下牵引的玻璃带(2)在玻璃的下部冷却点下方冷却,随后通过弯曲半径在0.1μm和4μm之间的弯曲区域(3b)偏转成 水平区域(3c),其中水平方向。 连续监测垂直区域(3a)中的玻璃带(2)的垂直取向。 在水平区域(3c)中对水平取向的玻璃带(2)进行至少一个切割处理。 用于监测玻璃带(2)的垂直对准的装置(20)包括检测玻璃边缘的至少三个传感器(22a,22b,22c; 22a',22b',22c')。这些传感器可以是机械辊。

    Method of protecting surfaces of glass substrates
    5.
    发明授权
    Method of protecting surfaces of glass substrates 失效
    保护玻璃基板表面的方法

    公开(公告)号:US06491972B1

    公开(公告)日:2002-12-10

    申请号:US09504607

    申请日:2000-02-15

    IPC分类号: B05D102

    摘要: A method of protecting a surface of a display glass or a hard disk substrate during processing arid transport includes applying at least one polyvinyl alcohol or other polymer protective layer on the surface, which is soluble in polarorganic solvents, so that the layer can be removed after processing and transport by washing in heated water or a polar organic solvent without leaving residues on the surface. The polyvinyl alcohol used to make the protective coating has an average molecular weight of ≧ about 60,000 g/mol and a hydrolysis degree of ≧95% and the at least one polyvinyl alcohol layer is dried by heating at temperatures of about 150° C. or less to form the protective coating after applying the polyvinyl alcohol layer. The other polymers are less soluble in water than polyvinyl alcohol but are easily removed with organic solvent.

    摘要翻译: 在处理和运输过程中保护显示器玻璃或硬盘基板的表面的方法包括在可溶于极性有机溶剂的表面上施加至少一种聚乙烯醇或其它聚合物保护层,使得该层可以在 通过在热水或极性有机溶剂中洗涤而不会在表面残留残留物进行处理和运输。 用于制备保护涂层的聚乙烯醇的平均分子量> =约60,000g / mol,水解度> = 95%,并且至少一种聚乙烯醇层通过在约150℃的温度下加热而干燥 或更小,以在涂覆聚乙烯醇层之后形成保护涂层。 其他聚合物在水中比聚乙烯醇溶解性差,但易于用有机溶剂除去。