Process for manufacturing ultra low consistency alpha- and beta- blend stucco
    11.
    发明授权
    Process for manufacturing ultra low consistency alpha- and beta- blend stucco 有权
    制造超低浓度α-和β-混合灰泥的方法

    公开(公告)号:US07588634B2

    公开(公告)日:2009-09-15

    申请号:US11533604

    申请日:2006-09-20

    IPC分类号: C04B11/00

    摘要: A process is disclosed for making a blend of alpha- and beta-stucco including a slurry calcination step to produce alpha calcium sulfate hemihydrate followed by a fluidized bed calcination step to produce beta calcium sulfate hemihydrate. The process starts with 50-75% gypsum-containing solids slurry, and then steam calcines the slurry in a first reactor to form partially calcined gypsum slurry which contains calcium sulfate dihydrate and alpha calcium sulfate hemihydrate. The partially calcined slurry is then dewatered. Then the filter cake is fed into a kettle to complete the calcination process by converting the calcium sulfate dihydrate of the filter cake material into beta calcium sulfate hemihydrate.

    摘要翻译: 公开了一种制备包括浆料煅烧步骤的α-和β-灰泥混合物以产生α硫酸钙半水合物,然后进行流化床煅烧步骤以产生β硫酸钙半水合物的方法。 该方法从50-75%含石膏固体浆料开始,然后蒸汽在第一反应器中煅烧浆料以形成含有硫酸钙二水合物和α硫酸钙半水合物的部分煅烧石膏浆料。 然后将部分煅烧的浆料脱水。 然后通过将滤饼材料的硫酸钙二水合物转化成β硫酸钙半水合物将滤饼进料到釜中以完成煅烧过程。

    Compositions and methods for treating set gypsum
    13.
    发明授权
    Compositions and methods for treating set gypsum 有权
    用于处理集石膏的组合物和方法

    公开(公告)号:US06822033B2

    公开(公告)日:2004-11-23

    申请号:US09992302

    申请日:2001-11-19

    IPC分类号: C08K332

    摘要: A composition and method for treating a set gypsum-containing material are disclosed. The composition is formed from at least water at least one trimetaphosphate salt, at least one monobasic phosphate salt, and at least one acyclic polyphosphate salt having at least three phosphate units. The method comprises applying to a set gypsum material at least two of the following inorganic phosphates: at least one monobasic phosphate salt, at least one trimetaphosphate salt, and at least one acyclic polyphosphate salt having at least three phosphate units. The method can be for inhibiting re-calcination of a set gypsum containing material, and/or for enhancing the strength, surface hardness, paintability, abrasion resistance, and/or water erosion resistance of a set gypsum-containing material. Also disclosed is a method of making a set gypsum-containing material.

    摘要翻译: 公开了一种用于处理集含石膏的材料的组合物和方法。 所述组合物由至少一种至少一种三偏磷酸盐,至少一种一磷酸盐和至少一种具有至少三个磷酸酯单元的无环多磷酸盐形成。 该方法包括将至少两种以下无机磷酸盐:至少一种一元磷酸盐,至少一种三偏磷酸盐和至少一种具有至少三个磷酸酯单元的无环多磷酸盐施用至一组石膏材料。 该方法可以用于抑制含石膏的材料的再煅烧,和/或用于提高含石膏材料的强度,表面硬度,可涂饰性,耐磨性和/或耐水蚀性。 还公开了制备含石膏的材料的方法。

    SILOXANE POLYMERIZATION IN WALLBOARD
    14.
    发明申请
    SILOXANE POLYMERIZATION IN WALLBOARD 有权
    壁板中的硅氧烷聚合

    公开(公告)号:US20110009564A1

    公开(公告)日:2011-01-13

    申请号:US12888162

    申请日:2010-09-22

    IPC分类号: C08K3/22

    摘要: Polymerization of siloxane is improved using a gypsum-based slurry that includes stucco, Class C fly ash, magnesium oxide and an emulsion of siloxane and water. This slurry is used in a method of making water-resistant gypsum articles that includes making an emulsion of siloxane and water, then combining the slurry with a dry mixture of stucco, magnesium oxide and Class C fly ash. The slurry is then shaped as desired and the stucco is allowed to set and the siloxane polymerizes.The resulting product is useful for making a water-resistant gypsum panel having a core that includes interwoven matrices of calcium sulfate dihydrate crystals and a silicone resin, where the interwoven matrices have dispersed throughout them a catalyst comprising magnesium oxide and components from a Class C fly ash.

    摘要翻译: 使用包括灰泥,C类飞灰,氧化镁和硅氧烷和水的乳液的石膏基浆料改善硅氧烷的聚合。 该浆料用于制造防水石膏制品的方法,其包括制备硅氧烷和水的乳液,然后将浆料与灰泥,氧化镁和C类粉煤灰的干混合物混合。 然后根据需要将浆料成形,并且使灰泥固化并且硅氧烷聚合。 得到的产品可用于制造具有核心的防水石膏板,该核心包括硫酸钙二水合物晶体和有机硅树脂的交织基质,其中交织基质在其中分散有包含氧化镁和C类飞沫的组分的催化剂 灰。

    Siloxane polymerization in wallboard
    15.
    发明授权
    Siloxane polymerization in wallboard 有权
    硅胶聚合在墙板上

    公开(公告)号:US07803226B2

    公开(公告)日:2010-09-28

    申请号:US11192652

    申请日:2005-07-29

    IPC分类号: C04B28/14 C04B11/00

    摘要: Polymerization of siloxane is improved using a gypsum-based slurry that includes stucco, Class C fly ash, magnesium oxide and an emulsion of siloxane and water. This slurry is used in a method of making water-resistant gypsum articles that includes making an emulsion of siloxane and water, then combining the slurry with a dry mixture of stucco, magnesium oxide and Class C fly ash. The slurry is then shaped as desired and the stucco is allowed to set and the siloxane polymerizes.The resulting product is useful for making a water-resistant gypsum panel having a core that includes interwoven matrices of calcium sulfate dihydrate crystals and a silicone resin, where the interwoven matrices have dispersed throughout them a catalyst comprising magnesium oxide and components from a Class C fly ash.

    摘要翻译: 使用包括灰泥,C类飞灰,氧化镁和硅氧烷和水的乳液的石膏基浆料改善硅氧烷的聚合。 该浆料用于制造防水石膏制品的方法,其包括制备硅氧烷和水的乳液,然后将浆料与灰泥,氧化镁和C类粉煤灰的干混合物混合。 然后根据需要将浆料成形,并且使灰泥固化并且硅氧烷聚合。 得到的产品可用于制造具有核心的防水石膏板,该核心包括硫酸钙二水合物晶体和有机硅树脂的交织基质,其中交织基质在其中分散有包含氧化镁和C类飞沫的组分的催化剂 灰。

    Process for manufacturing ready-mixed setting alpha-calcium sulphate hemi-hydrate and kit for same
    16.
    发明授权
    Process for manufacturing ready-mixed setting alpha-calcium sulphate hemi-hydrate and kit for same 有权
    制备预混合固化α-硫酸钙半水合物和试剂盒的方法相同

    公开(公告)号:US07754006B2

    公开(公告)日:2010-07-13

    申请号:US11688644

    申请日:2007-03-20

    IPC分类号: C04B11/024

    摘要: A process for making calcined gypsum in slurry or powder form. The process includes adding at least two types of crystal modifiers to the slurry. The first crystal modifier is to control crystal morphology of the calcined gypsum (such as succinic and/or malic acid). The second crystal modifier is to prevent or retard setting to control set time (such as tetrasodium pyrophosphate (TSPP)) to form a water stable product. An accelerator is typically added at the site of use for specific applications such as setting type joint compound, media casting, exterior/interior coating, and sprayable fireproofing. A composition made by the process and a kit for using the composition are also disclosed.

    摘要翻译: 制备浆料或粉末形式的煅烧石膏的方法。 该方法包括向浆料中加入至少两种类型的结晶改性剂。 第一种晶体改性剂是控制煅烧石膏(如琥珀酸和/或苹果酸)的晶体形态。 第二种结晶改性剂是防止或延缓凝固时间的控制(如焦磷酸四钠(TSPP))以形成水稳定的产品。 通常在用于特定应用的场所加入加速器,例如固定型接头化合物,介质铸造,外部/内部涂层和可喷涂防火。 还公开了通过该方法制备的组合物和用于使用该组合物的试剂盒。

    Fiber reinforced gypsum panel
    17.
    发明申请
    Fiber reinforced gypsum panel 审中-公开
    纤维增强石膏板

    公开(公告)号:US20080152945A1

    公开(公告)日:2008-06-26

    申请号:US11643572

    申请日:2006-12-20

    IPC分类号: B32B3/18

    摘要: A gypsum-containing panel and a method of making it are disclosed including at least one facing layer having a first polymer that is reinforced with reinforcing fibers and a gypsum core that has a second polymer in a second polymer matrix interwoven with a gypsum matrix. The first polymer in the facing layer and said second polymer matrix in said gypsum core form a continuous polymer matrix.

    摘要翻译: 公开了一种含石膏板及其制造方法,包括至少一个具有由增强纤维增强的第一聚合物的面层和在与石膏基质交织的第二聚合物基质中具有第二聚合物的石膏芯。 所述石膏芯中的面层中的第一聚合物和所述第二聚合物基质形成连续的聚合物基质。

    Fire-resistant gypsum panel
    18.
    发明申请
    Fire-resistant gypsum panel 有权
    耐火石膏板

    公开(公告)号:US20080087366A1

    公开(公告)日:2008-04-17

    申请号:US11546736

    申请日:2006-10-12

    IPC分类号: B32B37/00

    摘要: A method of continuously forming a multilayer panel includes making a gypsum slurry, then dividing the gypsum slurry into at least a primary gypsum slurry and a secondary gypsum slurry. An additive slurry having water and an intumescent material is created, then added to the secondary gypsum slurry to make an expandable layer slurry that is spread over at least a portion of a facing material. The primary gypsum slurry is distributed over the secondary gypsum slurry over the facing material and the expanding layer slurry to form a core. Optionally, another layer, an edge coating, is applied to the expanding layer for additional fire protection. The edge coating includes a second intumescent material. During a fire, the expanding layer expands to increase the thickness of the fire exposed gypsum panel and the edge coating expands to seal the gap between adjoining gypsum panels.

    摘要翻译: 连续形成多层板的方法包括制备石膏浆料,然后将石膏浆料分成至少一种初级石膏浆料和二级石膏浆料。 产生具有水和膨胀材料的添加剂浆料,然后加入到二次石膏浆料中以制成分散在至少一部分面向材料上的可膨胀层浆料。 主要石膏浆料分布在面向材料和膨胀层浆料上的次级石膏浆料上以形成核心。 可选地,将另一层(边缘涂层)施加到扩展层以用于额外的防火。 边缘涂层包括第二膨胀材料。 在火灾期间,膨胀层膨胀以增加防火露石膏板的厚度,并且边缘涂层膨胀以密封相邻的石膏板之间的间隙。