利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

19 条记录 (耗时 0.019 秒)

    Wet gypsum accelerator and methods, composition, and product relating thereto
    13.
    发明授权
    Wet gypsum accelerator and methods, composition, and product relating thereto 有权
    湿石膏加速剂及其相关的方法，组合物和产品

    公开(公告)号：US06409825B1

    公开(公告)日：2002-06-25

    申请号：US09721237

    申请日：2000-11-22

    申请人： Qiang Yu ,  Srinivas Veeramasuneni

    发明人： Qiang Yu ,  Srinivas Veeramasuneni

    IPC分类号： C04B1100

    CPC分类号： C04B28/14 ,  C04B2103/10 ,  C04B22/143 ,  C04B22/16 ,  C04B24/003

    摘要： A wet gypsum accelerator comprising particles of calcium sulfate dihydrate, water, and at least one additive selected from the group consisting of (i) an organic phosphonic compound, (ii) a phosphate-containing compound, or (iii) a mixture of (i) and (ii), is disclosed. Also disclosed are a method of preparing a wet gypsum accelerator, a method of hydrating calcined gypsum to form an interlocking matrix of set gypsum, a set gypsum-containing composition, and a set gypsum-containing product.

    摘要翻译： 一种湿石膏促进剂，其包含二水合硫酸钙颗粒，水和至少一种选自（i）有机膦化合物，（ii）含磷酸盐化合物或（iii）（i） ）和（ii）。 还公开了制备湿法石膏促进剂的方法，将煅烧石膏水合以形成凝固石膏的互锁基质，含石膏组合物和含石膏的产品的方法。

    Set accelerator for gypsum hydration
    14.
    发明授权
    Set accelerator for gypsum hydration 有权
    设置石膏水化加速器

    公开(公告)号：US08226766B2

    公开(公告)日：2012-07-24

    申请号：US12976190

    申请日：2010-12-22

    申请人： Srinivas Veeramasuneni ,  Qiang Yu

    发明人： Srinivas Veeramasuneni ,  Qiang Yu

    IPC分类号： C04B11/28 ,  C04B11/00 ,  C04B28/14

    CPC分类号： C04B28/145 ,  C04B2103/12 ,  C04B22/16

    摘要： In a first embodiment of the invention, aged brushite is combined with calcium sulfate hemihydrate and water to make a gypsum slurry. Aged brushite slurry behaves similarly to calcium sulfate dihydrate to act as a seed crystal and rapidly initiate crystallization. The brushite slurry does not require the addition of a coating to maintain its activity over time compared to calcium sulfate dihydrate set accelerators. A gypsum-based product made using brushite slurry as the set accelerator is a second embodiment. The product has the brushite molecules integrated as part of the calcium sulfate dihydrate matrix and is distributed throughout the matrix.

    摘要翻译： 在本发明的第一个实施方案中，将老化的白泥与半水合硫酸钙和水混合以制备石膏浆料。 老化的水泥浆浆体的作用类似于硫酸钙二水合物作为晶种，并迅速引发结晶。 与硫酸钙二水合物凝固加速器相比，该悬浮液不需要添加涂层以保持其随时间的活性。 作为第二实施方式的使用石灰浆作为凝固加速剂的石膏制品是第二实施方式。 该产品具有整合作为硫酸钙二水合物基质的一部分的分散在整个基质中的挥发分子。

    Slurry spreader for cementitious board production
    17.
    发明授权
    Slurry spreader for cementitious board production 失效
    用于水泥板生产的浆料撒布机

    公开(公告)号：US07364676B2

    公开(公告)日：2008-04-29

    申请号：US11217720

    申请日：2005-09-01

    申请人： Steven W. Sucech ,  Mark H. Englert ,  William A. Frank ,  Raymond John Mlinac ,  Srinivas Veeramasuneni

    发明人： Steven W. Sucech ,  Mark H. Englert ,  William A. Frank ,  Raymond John Mlinac ,  Srinivas Veeramasuneni

    IPC分类号： B28B1/16 ,  B28B13/02

    CPC分类号： B28B19/0092 ,  B32B13/02 ,  B32B13/04 ,  B32B13/06 ,  B32B13/08 ,  B32B13/14 ,  B32B15/20 ,  B32B37/24 ,  B32B2250/03 ,  B32B2250/40 ,  B32B2262/0276 ,  B32B2262/101 ,  B32B2315/06 ,  B32B2607/00

    摘要： The invention provides a board forming system comprising a forming table comprising a belt with a surface for conveying a backing layer; a mixer fitted with a mechanism capable of depositing cementitious slurry material over a top surface of the backing layer; and a slurry spreader positioned downstream of the mixer, wherein a portion of the slurry spreader comprises a plurality of apertures which are connected to a source of pressurized fluid. The slurry spreader is configured such that the pressurized fluid flows out of the slurry spreader through the apertures so as to provide a continuous film of fluid across an outer surface of the slurry spreader. The slurry spreader is positioned such that it can contact at least a portion of the cementitious slurry after the slurry exits the discharge and before the slurry is spread across the width of the backing layer such that the thickness of the slurry is approximately equal to the desired slurry thickness for board formation. The invention further provides methods for forming cementitious board comprising the use of the slurry spreader.

    摘要翻译： 本发明提供了一种板形成系统，其包括一成形台，该成形台包括一带和一用于输送背层的表面的带; 该混合器装配有能够将胶结浆料材料沉积在背衬层的顶表面上的机构; 以及位于所述混合器下游的浆料撒布机，其中所述浆料撒布机的一部分包括连接到加压流体源的多个孔。 浆料撒布机构造成使得加压流体通过孔从浆料撒布机流出，以便在浆料撒布机的外表面上提供连续的流体膜。 浆料撒布机被定位成使得其在浆料离开排出物之后并且在浆料分布在背衬层的宽度之前可以接触至少一部分水泥质浆料，使得浆料的厚度大致等于期望的 板形成浆料厚度。 本发明还提供了用于形成水泥基板的方法，其包括使用浆料撒布机。

    Slurry spreader for cementitious board production
    18.
    发明申请
    Slurry spreader for cementitious board production 失效
    用于水泥板生产的浆料撒布机

    公开(公告)号：US20070045892A1

    公开(公告)日：2007-03-01

    申请号：US11217720

    申请日：2005-09-01

    申请人： Steven Sucech ,  Mark Englert ,  William Frank ,  Raymond Mlinac ,  Srinivas Veeramasuneni

    发明人： Steven Sucech ,  Mark Englert ,  William Frank ,  Raymond Mlinac ,  Srinivas Veeramasuneni

    IPC分类号： B32B1/00 ,  B32B37/00 ,  B28B3/00

    CPC分类号： B28B19/0092 ,  B32B13/02 ,  B32B13/04 ,  B32B13/06 ,  B32B13/08 ,  B32B13/14 ,  B32B15/20 ,  B32B37/24 ,  B32B2250/03 ,  B32B2250/40 ,  B32B2262/0276 ,  B32B2262/101 ,  B32B2315/06 ,  B32B2607/00

    摘要： The invention provides a board forming system comprising a forming table comprising a belt with a surface for conveying a backing layer; a mixer fitted with a mechanism capable of depositing cementitious slurry material over a top surface of the backing layer; and a slurry spreader positioned downstream of the mixer, wherein a portion of the slurry spreader comprises a plurality of apertures which are connected to a source of pressurized fluid. The slurry spreader is configured such that the pressurized fluid flows out of the slurry spreader through the apertures so as to provide a continuous film of fluid across an outer surface of the slurry spreader. The slurry spreader is positioned such that it can contact at least a portion of the cementitious slurry after the slurry exits the discharge and before the slurry is spread across the width of the backing layer such that the thickness of the slurry is approximately equal to the desired slurry thickness for board formation. The invention further provides methods for forming cementitious board comprising the use of the slurry spreader.

    摘要翻译： 本发明提供了一种板形成系统，其包括一成形台，该成形台包括一带和一用于输送背层的表面的带; 该混合器装配有能够将胶结浆料材料沉积在背衬层的顶表面上的机构; 以及位于所述混合器下游的浆料撒布机，其中所述浆料撒布机的一部分包括连接到加压流体源的多个孔。 浆料撒布机构造成使得加压流体通过孔从浆料撒布机流出，以便在浆料撒布机的外表面上提供连续的流体膜。 浆料撒布机被定位成使得其在浆料离开排出物之后并且在浆料分布在背衬层的宽度之前可以接触至少一部分水泥质浆料，使得浆料的厚度大致等于期望的 板形成浆料厚度。 本发明还提供了用于形成水泥基板的方法，其包括使用浆料撒布机。

    Gypsum compositions with enhanced resistance to permanent deformation
    19.
    发明授权
    Gypsum compositions with enhanced resistance to permanent deformation 有权
    具有增强的抗永久变形的石膏组合物

    公开(公告)号：US06409824B1

    公开(公告)日：2002-06-25

    申请号：US09557721

    申请日：2000-04-25

    申请人： Srinivas Veeramasuneni ,  Qiang Yu ,  Michael P. Shake

    发明人： Srinivas Veeramasuneni ,  Qiang Yu ,  Michael P. Shake

    IPC分类号： C04B1100

    CPC分类号： C04B20/107 ,  C04B24/003 ,  C04B28/14 ,  C04B40/0042 ,  C04B2111/00094 ,  C04B2111/34 ,  C04B22/0013 ,  C04B22/16 ,  C04B24/2641 ,  C04B2103/10 ,  C04B22/143

    摘要： A set gypsum-containing composition is disclosed. In one aspect, the set gypsum-containing composition includes an interlocking matrix of the set gypsum formed from at least calcined gypsum, water, and an enhancing material. The enhancing material can be selected from (i) an organic polyphosphonic compound, or a mixture thereof; (ii) a borate selected from ulexite colemanite, or a mixture thereof; or a mixture of (i) and (ii). In another aspect, the set gypsum-containing composition is treated with an enhancing material which can be selected from (i) an organic phosphonic compound or a mixture thereof; (ii) a borate selected from ulexite, colemanite, or a mixture thereof; (iii) a carboxylic compound or a mixture thereof; or a mixture of (i), (ii) and/or (iii).

    摘要翻译： 公开了一种含石膏的组合物。 在一个方面，所述含石膏组合物包括由至少煅烧的石膏，水和增强材料形成的所述石膏的互锁基质。 增强材料可以选自（i）有机多膦酸化合物或其混合物; （ii）选自乌来石钙质石的硼酸盐或其混合物; 或（i）和（ii）的混合物。 在另一方面，所述含石膏组合物用增强材料处理，所述增强材料可以选自（i）有机膦酸化合物或其混合物; （ii）选自乌来石，钴黑石或其混合物的硼酸盐; （iii）羧酸化合物或其混合物; 或（i），（ii）和/或（iii）的混合物。