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US 2023/0295041 A1Published application
Fire resistant gypsum panels, and methods
AssigneeGeorgia-Pacific Gypsum LLC
InventorsFabio Enrique ESGUERRA, Allison N. GOINS, Anne H. KSIONZYK, Christopher J. SANDERS, Bryan J. WILTZIUS
Life of this patent
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Abstract
Fire resistant gypsum panels are provided herein, with assemblies including the same, and methods for making the same. A gypsum panel includes a set gypsum core and a mat facing material. The set gypsum core includes a fire resistant additive. The fire resistant additive consists essentially of clay, or a non-intumescent fire resistant additive. The panel displays an acceptable fire rating without requiring the use of vermiculite or intumescent materials.
Claims24
A gypsum panel, comprising:
- a set gypsum core comprising a fire resistant additive, the fire resistant additive consisting essentially of clay, wherein the clay is present in the set gypsum core in an amount of from about 0.5 to about 15 weight percent;
- and
- a mat facing material associated with a surface of the set gypsum core,
- wherein the panel displays a fire rating of not less than one hour when constructed as according to ASTM C1396 and tested in accordance with ASTM Test Method E119:
- Standard Test Methods for Fire Tests of Building Construction and Materials.
2 more elements
A gypsum panel, comprising:
- a set gypsum core comprising clay in the absence of any non-clay fire resistant additives present in an amount effective to alter the fire resistance performance of the panel,
- a mat facing material associated with a surface of the set gypsum core,
- wherein the panel displays a fire rating not less than one hour when constructed as according to ASTM C1396 and tested in accordance with ASTM Test Method E119:
- Standard Test Methods for Fire Tests of Building Construction and Materials.
1 more element
A gypsum panel, including:
- a set gypsum core including a non-intumescent fire resistant additive, the non-intumescent fire resistant additive comprising:
- silica in an amount of at least 40% by weight of the non-intumescent fire resistant additive, and
- ceramic flux agent in a total amount of more than 0% by weight and less than or equal to 5% by weight of the non-intumescent fire resistant additive;
- and
- a mat facing material associated with a surface of the set gypsum core.
2 more elements
Dependencies are inferred from the claim text.