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    EFFECTIVE USE OF MELAMINE SULFONATE CONDENSATE DISPERSANTS IN WALLBOARD CONTAINING FOAM
    4.
    发明申请
    EFFECTIVE USE OF MELAMINE SULFONATE CONDENSATE DISPERSANTS IN WALLBOARD CONTAINING FOAM 审中-公开
    在含有泡沫的墙板中有效地使用磺胺磺酸盐冷凝剂

    公开(公告)号：WO2012091914A1

    公开(公告)日：2012-07-05

    申请号：PCT/US2011/064546

    申请日：2011-12-13

    Applicant: UNITED STATES GYPSUM COMPANY ,  BLACKBURN, David R. ,  SHAKE, Michael P. ,  LU, Runhai

    Inventor： BLACKBURN, David R. ,  SHAKE, Michael P. ,  LU, Runhai

    IPC: C04B28/14 ,  C04B38/10 ,  C04B24/22 ,  C04B24/26

    CPC classification number: C04B28/14 ,  C04B24/223 ,  C04B24/2647 ,  C04B38/10 ,  C04B40/0028

    Abstract: Effective use of dispersants in wallboard containing foam results from a method where stucco is mixed with a first dispersant and a first quantity of water to form a gypsum slurry. A soap is blended with a second dispersant and a second quantity of water to make a foam. Subsequently, the foam is combined with the slurry. Choice of different first and second dispersants and their relative amounts allows control of the size distribution of the foam bubbles in the slurry and the resulting voids in the gypsum core. Melamine sulfonate condensate and polycarboxylate dispersants are preferred dispersants.

    Abstract translation: 分散剂在含泡沫的墙板中的有效使用是将灰泥与第一分散剂和第一量的水混合以形成石膏浆料的方法得出的。 将肥皂与第二分散剂和第二量的水混合以制备泡沫。 随后，将泡沫与浆料混合。 选择不同的第一和第二分散剂及其相对量允许控制浆料中的泡沫气泡的尺寸分布和所产生的石膏芯中的空隙。 三聚氰胺磺酸盐缩合物和聚羧酸盐分散剂是优选的分散剂。

    METHOD OF MAKING A COATING AND A COATED ACOUSTICAL PANEL USING DEGRADED FIBERS
    7.
    发明申请
    METHOD OF MAKING A COATING AND A COATED ACOUSTICAL PANEL USING DEGRADED FIBERS 审中-公开
    使用降解纤维制造涂层和涂覆的声学面板的方法

    公开(公告)号：WO2011119371A2

    公开(公告)日：2011-09-29

    申请号：PCT/US2011/028508

    申请日：2011-03-15

    Applicant: UNITED STATES GYPSUM COMPANY ,  ENGLERT, Mark ,  LU, Runhai ,  LANGDON, Matthew

    Inventor： ENGLERT, Mark ,  LU, Runhai ,  LANGDON, Matthew

    IPC: D21J1/08

    CPC classification number: D21J1/08 ,  D21J1/20 ,  E04B1/86 ,  E04B9/001

    Abstract: An acoustical panel is made by applying a thin, acoustically- transparent coating to an acoustical base mat. A pulp is made from one or more fillers, a fibrous filler, a binder and water. A thickener solution is prepared from a thickener and water. A portion of the pulp and the thickener solution are mixed under high shear conditions to degrade the fibrous filler and form a smooth coating. The coating is applied to and distributed over a base mat and the coated base mat is then cut and dried to form a coated acoustical panel. The panel is free of visible mineral nodules on the surface of the coating. Optionally, the pulp is a portion of a pulp used to make the base mat. Other embodiments include the use of recycled dust or fine particles of the acoustical panel obtained from cutting or shaping the base mat or coated panels.

    Abstract translation: 通过将薄的声学透明涂层施加到声学基垫上来制造吸音板。 纸浆由一种或多种填料，纤维填料，粘合剂和水制成。 增稠剂溶液由增稠剂和水制备。 一部分纸浆和增稠剂溶液在高剪切条件下混合以降解纤维填料并形成光滑的涂层。 将涂层涂覆并分布在基垫上，然后将涂覆的基垫切割并干燥以形成涂覆的吸音面板。 面板在涂层表面没有可见的矿物结节。 任选地，纸浆是用于制造基垫的纸浆的一部分。 其它实施例包括使用从切割或成形基垫或涂覆面板获得的回收的灰尘或由吸音面板制成的细颗粒。

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