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    • 8. 发明授权
    • Surface treatment process for porous solids
    • 多孔固体表面处理工艺
    • US4810533A
    • 1989-03-07
    • US115856
    • 1987-11-02
    • Albert B. Smith
    • Albert B. Smith
    • C04B41/48C04B41/53B05D3/00B05D3/12
    • C04B41/009C04B41/4884C04B41/53C04B2111/00439
    • The present process results in a surface which is impermeable and resistant to the action of chemical substances and heat. Natural stones such as marble, travertine, granite and structural and ornamental works made out of these stones are protected from atmospheric and chemical process of degradation by a novel method of sanding down the surface with an industrial diamond abrasive to open up the pores of these solids; rinsing with water, removing water with a chemical solvent and wiping with a tack cloth to remove microchips. A protective mixture in the form of a moisture-cured polyurethane is then applied to the surface of the stones. The moisture-cured polyurethane acts as a sealant for the pores of the stones and as a chemical polish on the surface of the stones, such sealant being impermeable and resistant to the action of stains produced by chemical substances.
    • 本方法产生不渗透和耐化学物质和热的作用的表面。 天然石材,如大理石,石灰华,花岗岩,以及由这些石头制成的结构和装饰作品,通过一种用工业金刚石研磨剂将表面打磨以打开这些固体的孔隙的新方法,免受大气和化学降解过程的影响 ; 用水冲洗,用化学溶剂去除水分,用抹布擦拭以除去微芯片。 然后将以湿固化聚氨酯形式的保护性混合物施加到石头的表面。 水分固化的聚氨酯作为石头孔的密封剂和作为石头表面的化学抛光剂,这种密封剂是不渗透的并且耐化学物质产生的污渍的作用。