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公开(公告)号：US20230159393A1
公开(公告)日：2023-05-25
申请号：US17992366
申请日：2022-11-22
发明人： Robert Piercy , Gene Whittington , R. G. Iyer , Eli Stav
CPC分类号： C04B24/10 , C04B28/14 , C04B38/0054 , B32B5/18 , C04B2111/0062
摘要： The present invention is directed to a gypsum panel and a method of making such gypsum panel. For instance, in one embodiment, the gypsum panel comprises a gypsum core and a first facing material and a second facing material sandwiching the gypsum core, wherein the gypsum core includes gypsum and an alkoxylated compound. In another embodiment, the gypsum panel comprises a gypsum core and a first facing material and a second facing material sandwiching the gypsum core, wherein the gypsum core includes gypsum and a polyol compound and wherein the gypsum panel exhibits a humidified deflection of greater than 0 inches to 0.05 inches. The methods of the present invention are directed to making the aforementioned gypsum panels by providing the first facing material, providing a gypsum slurry comprising gypsum, water, and the respective compound onto the first facing material, and providing the second facing material on the gypsum slurry.
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公开(公告)号：US20210309571A1
公开(公告)日：2021-10-07
申请号：US17218911
申请日：2021-03-31
发明人： Gene Whittington , Robert Piercy , Tom Griffith , Al Flanders
IPC分类号： C04B11/00 , C04B41/48 , C04B41/50 , C04B41/45 , C04B41/00 , C04B41/63 , C04B41/65 , B28B19/00
摘要： In the present disclosure, a method of forming a gypsum panel is disclosed. The method comprises: providing a first facing material, forming a starch slurry by combining starch and water at a shear rate of 3,000 rpm or more, providing the starch slurry onto the first facing material, depositing a gypsum slurry comprising stucco and water onto the starch slurry on the first facing material, providing a second facing material on the gypsum slurry, and allowing the stucco to convert to calcium sulfate dihydrate.
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