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US 2025/0163699 A1Published application
Pelletization of recycled ceiling materials
AssigneeArmstrong World Industries, Inc.
InventorsCharles G. KRICK, Tawnya R. HULTGREN
Life of this patent
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Abstract
Described herein is an acoustical building panel that comprises a body formed from a first component comprising a fibrous material, and a binder; and a second component comprising pellets of a recycled material, wherein the second component is present in an amount ranging from about 25 wt. % to about 45 wt. % based on the total weight of the body.
Claims20
A method of producing an acoustical building panel comprising:
- a) forming a mixture comprising recycled material in a first-state and water;
- b) feeding the mixture to an extruder at an entry point, whereby the mixture is processed into uniform web that exits the extruder at an exit point;
- c) forming pellets from the uniform web after the exit point, the pellets being in a second-state;
- and
- d) forming an acoustical building panel from the pellets.
2 more elements
A method of producing an acoustical building panel comprising:
- a) forming a mixture comprising recycled material in a first-state and water;
- b) feeding the mixture and a salt alginate to a mixer to form a secondary recycled-slurry;
- c) agitating the secondary recycled-slurry for a predetermined period of time to form a wet-out secondary recycled-slurry;
- d) feeding the wet-out secondary recycled-slurry to a bath comprising calcium chloride and water to form pellets, the pellets being in a second-state;
- and
- e) forming an acoustical building panel from the pellets.
3 more elements
Dependencies are inferred from the claim text.