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US 2026/0200799 A1Published application
Composite building panel
AssigneeArmstrong World Industries, Inc.
InventorsSteven L. Masia, Gourish SIRDESHPANDE
Life of this patent
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Abstract
Described herein is a building panel comprising a body comprising a binder comprising MgO and MgSO4; cellulosic fiber; and wherein the MgO and MgSO4 arc present in a molar ratio ranging from about 7:1 to about 9:1.
Claims26
A building panel comprising:
- a body comprising:
- a binder comprising MgO and MgSO4;
- a particulate comprising cellulosic fiber;
- and
- wherein the MgO and MgSO4 are present in a molar ratio ranging from about 7:1 to about 9:1.
2 more elements
7-8. (canceled)
11-52. (canceled)
A method of manufacture of a building panel comprising:
- forming a blend by combining together a binder composition, a recycled material, and a water;
- flowing the blend into a mold having a geometry;
- hardening the blend in the mold such that the binder composition and recycled material conform to the geometry of the mold, resulting in a building panel body;
- wherein the binder composition comprises MgO and MgO—KH2PO4 in a molar ratio ranging from about 1:1 to about 4:1.
1 more element
(canceled)
62-68. (canceled)
A blend for the manufacture of building materials, the blend comprising:
- anhydrous MgO powder,
- anhydrous MgSO4 powder;
- and
- a particulate filler comprising hydrated MgO and cellulosic fiber
- wherein the MgO and MgSO4 in a molar ratio ranging from about 6.5:1 to about 9.5:1.
2 more elements
(canceled)
-78. (canceled)
Dependencies are inferred from the claim text.