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    • 1. 发明申请
    • METHOD OF MAKING A COATING AND A COATED ACOUSTICAL PANEL USING DEGRADED FIBERS
    • 使用降解纤维制造涂层和涂覆的声学面板的方法
    • WO2011119371A2
    • 2011-09-29
    • PCT/US2011/028508
    • 2011-03-15
    • UNITED STATES GYPSUM COMPANYENGLERT, MarkLU, RunhaiLANGDON, Matthew
    • ENGLERT, MarkLU, RunhaiLANGDON, Matthew
    • D21J1/08
    • D21J1/08D21J1/20E04B1/86E04B9/001
    • 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.
    • 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。