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公开(公告)号：US20130081554A1
公开(公告)日：2013-04-04
申请号：US13621406
申请日：2012-09-17
申请人： USG Interiors, LLC
发明人： Bangji Cao
CPC分类号： E04C2/16
摘要： Building panels such as ceiling tiles have compositions including starch as a binder and a coagulant for the starch. The building panels also can include a fibrous material and a filler. In one aspect, the starch is coagulated by the coagulant resulting in the starch being distributed substantially uniformly through a thickness of the building panels, whereby certain physical properties of the building panels and a wet-felting process for manufacturing the building panels are improved. The coagulant can comprise at least one aluminum salt. In the wet-felting process for manufacturing the ceiling tiles, a slurry comprising an aqueous dispersion of at least one fibrous material, at least one filler material, at least starch as a binder and a coagulant for the starch is delivered onto a foraminous wire frame. The slurry is dewatered to form a basemat and the basemat is dried to remove any residual moisture.
摘要翻译： 诸如天花板的建筑面板具有包括作为粘合剂的淀粉和用于淀粉的凝结剂的组合物。 建筑面板还可以包括纤维材料和填料。 在一个方面，淀粉被凝结剂凝结，导致淀粉基本均匀地分布在建筑面板的厚度上，从而提高了建筑面板的某些物理特性和用于制造建筑面板的湿法毡制工艺。 凝结剂可以包含至少一种铝盐。 在用于制造天花板瓦片的湿法毡化方法中，包含至少一种纤维材料的水分散体，至少一种填料，至少淀粉作为粘合剂和用于淀粉的凝结剂的浆料被输送到多孔线框 。 将浆料脱水以形成底片，并且将干燥的底片除去任何残留的水分。
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公开(公告)号：US20230035178A1
公开(公告)日：2023-02-02
申请号：US17443319
申请日：2021-07-23
申请人： USG INTERIORS, LLC
发明人： Yufeng Xu , Bangji Cao , William Frank , Qing C. Yu , Louis P. Stocco , Adam Warren Keller
摘要： The disclosure provides basemats for fibrous panels, including a mineral wool present in an amount of at least about 60 wt %, based on the total weight of the basemat, a mineral filler, a cellulose present in an amount of about 1 wt % to about 3 wt %, based on the total weight of the basemat, and a binder. The basemat has a backing side and a facing side. Also provided are fibrous panels including the basemat of the disclosure and a porous veil.
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