Removing iridescent stains from vitreous surfaces
    2.
    发明授权
    Removing iridescent stains from vitreous surfaces 失效
    从玻璃体表面去除虹彩色斑

    公开(公告)号:US4102706A

    公开(公告)日:1978-07-25

    申请号:US777897

    申请日:1977-03-16

    申请人: Lazarus D. Thomas

    发明人: Lazarus D. Thomas

    摘要: Iridescent stains are removed from vitreous surfaces by contacting the surfaces with an aqueous solution of hydrochloric acid and sodium fluoride followed by rinsing the solution from the surfaces with water and, optionally, buffing the surfaces with an aqueous mixture of cerium oxide. The method provides benefits not only in cleaning efficiency but also in operational safety to personnel and absence of detrimental effects on surrounding building materials.

    摘要翻译: 通过使表面与盐酸和氟化钠的水溶液接触,然后用水从表面冲洗溶液,并且任选地用氧化铈的水性混合物抛光表面,从玻璃表面除去彩色染色。 该方法不仅在清洁效率方面提供益处,而且对人员的操作安全以及对周围建筑材料没有不利影响。