Dealkalization of glass surfaces
    5.
    发明授权
    Dealkalization of glass surfaces 失效
    玻璃表面处理

    公开(公告)号:US3653864A

    公开(公告)日:1972-04-04

    申请号:US3653864D

    申请日:1969-03-17

    CPC classification number: C03C23/00 C03C21/001

    Abstract: This invention relates to the improvement in surface durability of alkali metal oxide containing glasses through the removal of the alkali metal oxide by a treatment which comprises hydrating the alkali metal oxide containing glass in an autoclave, and thereafter dealkalizing the glass surface by contacting it, at a moderate temperature, with a non-acidic non-aqueous solvent having a high dielectric constant. The resultant surface has substantially improved chemical surface durability.

    Abstract translation: 本发明涉及通过一种处理方法去除碱金属氧化物来改善含碱金属氧化物的玻璃的表面耐久性,所述处理包括在高压釜中使含碱金属氧化物的玻璃水合,然后通过与玻璃表面接触使其脱碱, 中等温度,具有高介电常数的非酸性非水溶剂。 所得到的表面具有显着改善的化学表面耐久性。

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