Process for strengthening geological formations
    2.
    发明授权
    Process for strengthening geological formations 失效
    加强地质构造的过程

    公开(公告)号:US4792262A

    公开(公告)日:1988-12-20

    申请号:US898452

    申请日:1986-08-20

    CPC分类号: C09K8/5086 C09K17/30

    摘要: The present invention is directed to a process for strengthening geological formations in underground mining or other operations introducing into the formation which is to be strengthened mixtures of a polyisocyanate component (a) and a polyol component (b) which react together to form polyurethanes, characterized in that the polyol component (b) is based on mixtures of (i) organic polyhydroxyl compounds having hydroxyl numbers of about 100 to 600 and (ii) dihydric alcohols having a molecular weight of 62 to about 150, component (ii) being present in an amount of about 0.01 to 20% by weight, based on the total quantity of component (b).

    摘要翻译: 本发明涉及一种用于加强地下采矿或引入地层的其他操作中的地质构造的方法,该方法是强化多异氰酸酯组分(a)和一起反应形成聚氨酯的多元醇组分(b)的混合物,其特征在于 其中多元醇组分(b)基于(i)羟值为约100至600的有机多羟基化合物和(ii)分子量为62至约150的二元醇的混合物,组分(ii)存在于 相对于组分(b)的总量,其量为约0.01至20重量%。