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1.发明申请FIRE RESISTANT GYPSUM BOARD COMPRISING EXPANDABLE GRAPHITE AND RELATED METHODS AND SLURRIES 审中-公开包含可膨胀石墨的耐火石膏板及相关方法和浆料
公开(公告)号：WO2018085130A1
公开(公告)日：2018-05-11
申请号：PCT/US2017/058643
申请日：2017-10-27
Applicant: UNITED STATES GYPSUM COMPANY
Inventor： LI, Qinghua , PUNATI, Naveen , ANTOSH, Mark , SONG, Weixin D.
Abstract: Disclosed are a gypsum board, and related slurries and methods. The gypsum board comprises a gypsum layer disposed between two cover sheets. The gypsum layer comprises a crystalline matrix of set gypsum and expandable graphite. The expandable graphite exhibits volume expansion at high temperatures. Optionally, unexpanded vermiculite can also be included in the gypsum layer to provide an expansion component at even higher temperatures. Because of synergy between the expandable graphite and unexpanded vermiculite in accordance with some embodiments, less vermiculite can be included in the board than in conventional board that contained vermiculite. The board desirably can pass one or more fire-related tests, and is a fire-rated board in some embodiments.
Abstract translation: 公开了一种石膏板以及相关的浆料和方法。 石膏板包括设置在两个覆盖片之间的石膏层。 石膏层包含凝固石膏和可膨胀石墨的结晶基质。 可膨胀石墨在高温下表现出体积膨胀。 任选地，未膨胀的蛭石也可以包含在石膏层中以在甚至更高的温度下提供膨胀组分。 由于根据一些实施方式的可膨胀石墨和未膨胀蛭石之间的协同作用，与包含蛭石的传统板相比，可以将更少的蛭石包括在板中。 理想地，电路板可以通过一个或多个与火相关的测试，并且在一些实施例中是防火板。
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2.发明申请
公开(公告)号：WO2019213045A1
公开(公告)日：2019-11-07
申请号：PCT/US2019/029853
申请日：2019-04-30
Applicant: UNITED STATES GYPSUM COMPANY
Inventor： RAY, Suman, Sinha , ANTOSH, Mark , HEMPHILL, Mark , SANG, Yijun
Abstract: A layered gypsum wallboard can include: a gypsum board having opposing front and back faces, wherein the gypsum board comprises a first cover sheet material at the front face, a second cover sheet material at the back face, and a gypsum core layer comprising gypsum; an adhesive layer on the second cover sheet material of the gypsum board, the adhesive including a polymer having a glass transition temperature (T g ) of -10 ℃ to 30 ℃; an intermediate gypsum layer including gypsum on the adhesive layer such that the adhesive layer is between the second cover sheet material and the intermediate gypsum layer, wherein the adhesive layer and the intermediate gypsum layer have a combined thickness of 0.09 inches to 0.25 inches; and a third cover sheet material, wherein the intermediate gypsum layer is between and in contact with the adhesive layer and the third cover sheet material.
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3.发明公开
公开(公告)号：EP3787895A1
公开(公告)日：2021-03-10
申请号：EP19723590.6
申请日：2019-04-30
Applicant: United States Gypsum Company
Inventor： RAY, Suman, Sinha , ANTOSH, Mark , HEMPHILL, Mark , SANG, Yijun
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