Aqueous cement composition
    62.
    发明申请
    Aqueous cement composition 有权
    水性水泥组合物

    公开(公告)号:US20050000391A1

    公开(公告)日:2005-01-06

    申请号:US10497371

    申请日:2002-11-26

    摘要: A fresh aqueous cement composition suitable for building purposes is described. It contains, besides a hydraulic cement, a methyl ethyl cellulose ether having a DS methyl of 0.4-2.2, a DS ethyl of 0.050.8 and a MS hydroxy-(C2-C3)-alkyl of 0-2. The celulose ether imparts excellent rheology properties, including a high water-retention combined with a long open time, to the cement composition. A dry blend and a rheology additive containing the cellulose ether are also described.

    摘要翻译: 描述了适用于建筑目的的新鲜水性水泥组合物。 除了水硬水泥外,它还含有DS甲基为0.4-2.2的甲基乙基纤维素醚,0.050.8的DS乙基和0-2的MS羟基 - (C 2 -C 3) - 烷基。 纤维素醚对水泥组合物具有优异的流变性能,包括高保水性和长期开放时间。 还描述了含有纤维素醚的干混合物和流变添加剂。

    Marine antifouling methods and compositions
    63.
    发明授权
    Marine antifouling methods and compositions 失效
    船用防污方法及组合物

    公开(公告)号:US5919689A

    公开(公告)日:1999-07-06

    申请号:US739272

    申请日:1996-10-29

    摘要: Disclosed are marine antifouling compositions and/or paints containing, microorganism(s), or mixtures of hydrolytic enzyme(s) and microorganism(s), wherein the microorganism or hydrolytic enzyme reduce fouling of a surface coated by the marine antifouling composition and/or paint. Such compositions and/or paints may contain a catalytically effective amount of an inorganic salt. Also disclosed are articles coated with the composition and/or paint. Finally, methods are disclosed for reducing fouling of a marine surface, for reducing marine corrosion, for limiting absorption of water by a marine surface, for reducing the coefficient of drag of a marine surface, removing marine growth from a marine surface, and for reducing mildew fungus on a marine surface.

    摘要翻译: 公开了包含微生物或水解酶和微生物的混合物的海洋防污组合物和/或油漆,其中微生物或水解酶减少由海洋防污组合物涂覆的表面的结垢和/或 涂料。 这样的组合物和/或油漆可以含有催化有效量的无机盐。 还公开了涂覆有组合物和/或油漆的制品。 最后,公开了用于减少海洋表面的结垢,减少海洋腐蚀,限制海洋表面吸收水分的方法,用于降低海洋表面的阻力系数,从海洋表面去除海洋生长和减少 海面上的霉菌。