Refractory castables with hydrophobic aggregates
    1.
    发明授权
    Refractory castables with hydrophobic aggregates 有权
    具有疏水聚集体的耐火浇注料

    公开(公告)号:US09227881B2

    公开(公告)日:2016-01-05

    申请号:US14710809

    申请日:2015-05-13

    摘要: Hydrophobic aggregates for use in refractory castables and gunning mixtures and methods of their preparation. The aggregates here are formed by crushing insulating fire brick and coating the resulting particles with a hydrophobic component. The hydrophobic component may be a polydimethylsiloxane having a terminal silanol group. As a result of the coating process, the coated aggregate has very low levels of alkalis. The aggregates may be used to form refractory castables that do not undergo substantial alkaline hydrolysis due to the reduced levels of alkalis. The castables made from these aggregates display superior physical properties, including lower water content, lower permanent linear change, high strength, and superior thermal conductivity/insulation properties, while at the same time possessing lower density and requiring less water to be used during castable formation. These improved properties also are observed in gunning mixtures formed from these aggregates.

    摘要翻译: 用于耐火浇注料和喷射混合物的疏水聚集体及其制备方法。 这里的聚集体通过破碎绝热防火砖并用疏水组分涂覆所得颗粒而形成。 疏水组分可以是具有末端硅烷醇基团的聚二甲基硅氧烷。 作为涂覆工艺的结果,涂覆的聚集体具有非常低的碱含量。 聚集体可用于形成由于碱的水平降低而不经历基本碱性水解的耐火浇注料。 由这些聚集体制成的浇注料显示出优异的物理性能,包括较低的水含量,较低的永久线性变化,高强度和优异的导热性/绝缘性能,同时具有较低的密度并且在浇铸成型期间需要较少的水 。 在由这些聚集体形成的喷射混合物中也观察到这些改进的性质。

    Low dust wall repair compound
    7.
    发明申请
    Low dust wall repair compound 有权
    低灰尘墙修复剂

    公开(公告)号:US20030066456A1

    公开(公告)日:2003-04-10

    申请号:US09872000

    申请日:2001-06-01

    摘要: The quantity of dust generated by a sandable wall repair compound is reduced by adding a dust reducing additive to the compound. Dust reducing additives include oil, wax, and mixtures thereof. Dust reducing additives containing oil may include rheological and polar additives to minimize the bleeding of the oil into substrates to which the wall repair compound is applied.

    摘要翻译: 通过向化合物中加入减尘添加剂,可减少由可砂化修复化合物产生的粉尘的量。 除尘添加剂包括油,蜡及其混合物。 含有油的除尘添加剂可以包括流变学和极性添加剂,以最小化油渗透到其中施加壁修复化合物的基材中。