Compositions and methods for treating set gypsum
    14.
    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。

    Cementitious article and method for preparing the same
    15.
    发明授权
    Cementitious article and method for preparing the same 有权
    水泥制品及其制备方法

    公开(公告)号:US08329308B2

    公开(公告)日:2012-12-11

    申请号:US12415931

    申请日:2009-03-31

    IPC分类号: B32B9/04 B32B27/00 B05D3/02

    摘要: A cementitious article and a method of making a cementitious article are disclosed. The cementitious article comprises a cementitious component that comprises a polyvinyl acetate type polymer, a monobasic phosphate, and optionally boric acid. Cementitious articles, such as board, are prepared such that the polyvinyl acetate type polymer, the monobasic phosphate, and optionally boric acid can be present in the cementitious core, and/or in dense layers if present. The concentration of the polyvinyl acetate type polymer, monobasic phosphate, and optionally boric acid in the cementitious article can increase from a central region A to peripheral regions B and C, respectively. In some embodiments, the polyvinyl acetate type polymer is a polyvinyl alcohol and the monobasic phosphate is monoammonium phosphate.

    摘要翻译: 公开了水泥制品和制造水泥制品的方法。 水泥制品包括水泥组分,其包含聚乙酸乙烯酯型聚合物,一元磷酸盐和任选的硼酸。 制备诸如板的水泥制品,使得聚乙酸乙烯酯型聚合物,一磷酸盐和任选的硼酸可以存在于水泥核心中,和/或以致密层存在(如果存在)。 水泥制品中聚乙酸乙烯酯型聚合物,一磷酸盐和任选的硼酸的浓度分别可以从中心区域A增加到外围区域B和C. 在一些实施方案中,聚乙酸乙烯酯型聚合物是聚乙烯醇,一元磷酸盐是磷酸二氢铵。

    Siloxane polymerization in wallboard
    16.
    发明授权
    Siloxane polymerization in wallboard 有权
    硅胶聚合在墙板上

    公开(公告)号:US08133600B2

    公开(公告)日:2012-03-13

    申请号:US12888162

    申请日:2010-09-22

    IPC分类号: B32B13/00 B32B13/08

    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
    17.
    发明申请
    SILOXANE POLYMERIZATION IN WALLBOARD 有权
    壁板中的硅氧烷聚合

    公开(公告)号:US20100055477A1

    公开(公告)日:2010-03-04

    申请号:US12617114

    申请日:2009-11-12

    IPC分类号: B32B13/04 C08K3/30 C08L3/00

    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。

    METHOD AND APPARATUS FOR PRESSURIZED CALCINATION OF GYPSUM
    19.
    发明申请
    METHOD AND APPARATUS FOR PRESSURIZED CALCINATION OF GYPSUM 有权
    方法和装置用于压力计算

    公开(公告)号:US20090257946A1

    公开(公告)日:2009-10-15

    申请号:US12388793

    申请日:2009-02-19

    IPC分类号: C01F11/46 B01J19/00

    摘要: A method for calcining gypsum in a pressurized reactor by injecting combustion gases and air into the pressurized reactor to create a fluidized bed of gypsum, and heating the fluidized bed of gypsum in the pressurized reactor sufficiently to form a calcined hemihydrate.

    摘要翻译: 一种通过将加压反应器中的燃烧气体和空气注入加压反应器中以产生石膏流化床并在加压反应器中充分加热石膏流化床以形成煅烧半水合物的方式来在加压反应器中煅烧石膏。