Refractory Castables with Hydrophobic Aggregates
    23.
    发明申请
    Refractory Castables with Hydrophobic Aggregates 有权
    具疏水聚集体的耐火铸件

    公开(公告)号:US20150259255A1

    公开(公告)日:2015-09-17

    申请号:US14710809

    申请日:2015-05-13

    IPC分类号: C04B40/00 C09C1/00

    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。 聚集体可以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。

    Refractory Castables with Hydrophobic Aggregates
    24.
    发明申请
    Refractory Castables with Hydrophobic Aggregates 审中-公开
    具疏水聚集体的耐火铸件

    公开(公告)号:US20140339456A1

    公开(公告)日:2014-11-20

    申请号:US14279536

    申请日:2014-05-16

    IPC分类号: F16L59/02

    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。

    Admixture for optimizing addition of EO/PO plasticizers
    26.
    发明授权
    Admixture for optimizing addition of EO/PO plasticizers 有权
    用于优化添加EO / PO增塑剂的外加剂

    公开(公告)号:US06670415B2

    公开(公告)日:2003-12-30

    申请号:US09993726

    申请日:2001-11-06

    IPC分类号: C08K334

    摘要: In the preparation of aqueous cement compositions containing a plasticizer, such as an EO/PO polymer-containing plasticizer, or EO/PO comb polymer-containing plasticizer, and further containing clay, such as a smectite clay, which expands when in contact with water, the step of providing an agent operative to modify the clay whereby the plasticizer absorbing capability of the clay is reduced. In exemplary methods of the invention, the plasticizer is an EO/PO (e.g., oxyalkylene) plasticizer and preferably an EO/PO comb polymer, and the clay-activity-modifying agent may comprise an inorganic cation, an organic cation, a polar organic molecule capable of being absorbed by the clay, a clay dispersant (such as a polyphosphate), or a mixture thereof. For clay-activity-modifying agents which comprise a cation or a polar organic molecule, the agent is preferably added to the clay before water is introduced to the clay. For clay dispersant agents and some organic cations such as quaternary amines (which have a strong affinity for cationic exchange with the clay), the agent may be added before, during, or after water is introduced to the clay.

    摘要翻译: 在含有增塑剂的水性水泥组合物的制备中,例如含有EO / PO聚合物的增塑剂或含EO / PO梳型聚合物的增塑剂,并且还包含与水接触时膨胀的粘土,例如蒙脱石粘土 提供可以改变粘土的试剂的步骤,从而降低粘土的增塑剂吸收能力。 在本发明的示例性方法中,增塑剂是EO / PO(例如,氧化烯)增塑剂,优选EO / PO梳状聚合物,并且粘土 - 活性改性剂可以包含无机阳离子,有机阳离子,极性有机物 能够被粘土吸收的分子,粘土分散剂(例如多磷酸盐)或其混合物。 对于包含阳离子或极性有机分子的粘土活性改性剂,优选在将水引入粘土之前将试剂加入到粘土中。 对于粘土分散剂和一些有机阳离子如季胺(其与粘土与阳离子交换具有很强的亲和力),可以在将水引入粘土之前,之中或之后加入该试剂。

    Organoclay compositions
    27.
    发明授权
    Organoclay compositions 失效
    有机粘土组合物

    公开(公告)号:US5780376A

    公开(公告)日:1998-07-14

    申请号:US802758

    申请日:1997-02-20

    IPC分类号: C01B33/44 C04B24/42 C09C1/42

    摘要: Organoclay compositions which comprise the reaction product of a smectite-type clay having an ion exchange capacity of at least 50 meq. wt. per 100 g. clay (active basis), and mixture of a quaternary ammonium compound and a chain transfer agent which is a thiol, .alpha.-methylketone, .alpha.-methylalcohol or a halogen compound are useful agents for use in the processes for the preparation of thermoplastic materials.

    摘要翻译: 有机粘土组合物,其包含具有至少50meq的离子交换容量的蒙脱石型粘土的反应产物。 重量 每100克 粘土(活性基)和季铵化合物和作为硫醇,α-甲基酮,α-甲醇或卤素化合物的链转移剂的混合物是用于制备热塑性材料的方法中的有用的试剂。