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    CEMENTITIOUS ARTICLE AND METHOD FOR PREPARING THE SAME
    1.
    发明申请
    CEMENTITIOUS ARTICLE AND METHOD FOR PREPARING THE SAME 审中-公开
    生物制品及其制备方法

    公开(公告)号：WO2010117563A1

    公开(公告)日：2010-10-14

    申请号：PCT/US2010/027401

    申请日：2010-03-16

    Applicant: UNITED STATES GYPSUM COMPANY ,  LIU, Qingxia ,  SHAKE, Michael P. ,  YU, Qiang

    Inventor： LIU, Qingxia ,  SHAKE, Michael P. ,  YU, Qiang

    IPC: C04B28/14

    CPC classification number: C04B28/14 ,  C04B2111/00482 ,  C04B2111/0062 ,  C04B2111/00672 ,  C04B2111/60 ,  Y02W30/92 ,  Y10T428/31504 ,  Y10T428/31855 ,  C04B14/42 ,  C04B18/08 ,  C04B22/0013 ,  C04B22/16 ,  C04B24/2623 ,  C04B24/38 ,  C04B24/42 ,  C04B38/106 ,  C04B2103/12 ,  C04B2103/22 ,  C04B2103/408 ,  C04B2103/67

    Abstract: 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.

    Abstract translation: 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）到外围区域（B）和（C）增加。 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。

    METHODS AND SYSTEMS FOR ADDITION OF CELLULOSE ETHER TO GYPSUM SLURRY
    4.
    发明申请
    METHODS AND SYSTEMS FOR ADDITION OF CELLULOSE ETHER TO GYPSUM SLURRY 审中-公开
    用于将纤维素醚添加到甘油浆的方法和系统

    公开(公告)号：WO2008105994A1

    公开(公告)日：2008-09-04

    申请号：PCT/US2008/001545

    申请日：2008-02-06

    Applicant: UNITED STATES GYPSUM COMPANY ,  MILLER, David, Paul ,  LIU, Qingxia ,  YU, Qiang

    Inventor： MILLER, David, Paul ,  LIU, Qingxia ,  YU, Qiang

    IPC: B32B13/00

    CPC classification number: B28C7/024 ,  B01F3/1221 ,  B01F3/1228 ,  B01F7/00766 ,  B28B19/0092 ,  B28C5/381 ,  B28C7/0418 ,  C04B28/14 ,  C04B2111/0062 ,  C04B24/383 ,  C04B38/10 ,  C04B40/0032 ,  C04B40/006

    Abstract: An example system for making a gypsum board product comprises a container for containing a gypsum slurry, a moving receiver in communication with the container, wherein the container substantially continuously deposits the gypsum slurry on the moving receiver. A first and at least a second cellulose ether supply containing a first cellulose ether communicate with the container. The first and second supplies contain cellulose ethers having different physical or chemical properties. A controller is configured to change the amount of the first and second cellulose ethers delivered to the container in response to a change in at least one slurry physical property.

    Abstract translation: 用于制造石膏板产品的示例性系统包括用于容纳石膏浆料的容器，与容器连通的移动接收器，其中容器基本上将石膏浆料沉积在移动的接收器上。 含有第一纤维素醚的第一和至少第二纤维素醚供应源与容器连通。 第一和第二供应品含有具有不同物理或化学性质的纤维素醚。 控制器被配置为响应于至少一种浆料物理性质的变化而改变输送到容器中的第一和第二纤维素醚的量。

    MODIFIED LANDPLASTER AS A WALLBOARD FILLER
    10.
    发明申请
    MODIFIED LANDPLASTER AS A WALLBOARD FILLER 审中-公开
    改装的LANDPLASTER作为墙板填料

    公开(公告)号：WO2007027530A2

    公开(公告)日：2007-03-08

    申请号：PCT/US2006/033297

    申请日：2006-08-25

    Applicant: UNITED STATES GYPSUM COMPANY ,  BLACKBURN, David, R. ,  LIU, Qingxia ,  SHAKE, Michael, P.

    Inventor： BLACKBURN, David, R. ,  LIU, Qingxia ,  SHAKE, Michael, P.

    IPC: C04B28/14 ,  C04B28/08

    CPC classification number: C04B28/14 ,  C04B2111/28 ,  C04B2111/52 ,  C04B14/365 ,  C04B20/107 ,  C04B24/2647 ,  C04B40/0633 ,  C04B20/1066

    Abstract: A gypsum slurry includes calcium sulfate hemihydrate, water and calcium sulfate dihydrate is coated with a hydrophilic, dispersible coating. The coating is less soluble than the calcium sulfate hemihydrate to delay exposure of the landplaster to the remainder of the slurry, preventing premature crystallization and the early stiffening that accompanies it. Another embodiment is a gypsum slurry that includes calcium sulfate hemihydrate, a polycarboxylate dispersant, water and coated calcium sulfate dihydrate. In this case, the hydrophilic, dispersible coating is selected to serve as a modifier to enhance the ability of the dispersant to fluidize the gypsum slurry.

    Abstract translation: 石膏浆料包括半水合硫酸钙，水和硫酸钙二水合物涂覆有亲水的，可分散的涂层。 涂层的溶解度比硫酸钙半水合物少，以延缓露地坪暴露于泥浆的剩余部分，防止过早结晶和伴随其的早期硬化。 另一个实施方案是包括硫酸钙半水合物，多羧酸盐分散剂，水和包被的硫酸钙二水合物的石膏浆料。 在这种情况下，选择亲水性可分散涂层作为改性剂以增强分散剂使石膏浆液流化的能力。

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