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US 11,633,935 B2Granted
Humidity and sag resistant building panel
AssigneeAWI Licensing LLC
InventorsJames D. Pape, Gourish Sirdeshpande, Joanne Lefever, Kimberly Diffenbaugh, Jere Myers, John Felegi, Jr.
Life of this patent
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Abstract
Described herein is an stain and sag resistant acoustic building panel comprising a porous body formed from building material and latex binder, wherein the building material may include fibers and filler and at one of the building materials has been pre-treated with a charge-modifying component, thereby enhancing the sag-resistance of the building panel.
Claims20
A building panel comprising:
- a latex binder;
- a fibrous material comprising a fiber pre-treated with a charge-modifying component;
- wherein the latex is present in a non-zero amount ranging up to about 15 wt. % based on the total dry-weight of the building panel;
- and
- wherein the charge-modifying component is selected from the group consisting of aluminum sulfate, poly(diallyldimethylammonium chloride), and combinations thereof.
2 more elements
A method for producing a sag resistant building panel comprising:
- a) pre-treating a building material with a charge-modifying component to form a pre-treated building material by mixing the building material and the charge-modifying component in an aqueous slurry;
- b) mixing into the aqueous slurry a latex binder;
- and
- c) forming the building panel from the aqueous slurry;
- wherein the latex binder is present in a non-zero amount ranging up to about 15 wt. % based on the total dry-weight of the building panel.
2 more elements
A building panel comprising:
- a latex binder;
- a fibrous material comprising a mineral wool pre-treated with a charge-modifying component having a cationic charge;
- wherein the latex is present in a non-zero amount ranging up to about 15 wt. % based on the total dry-weight of the building panel;
- and
- wherein the charge-modifying component is selected from the group consisting of aluminum sulfate, poly(diallyldimethylammonium chloride), and combinations thereof.
2 more elements
Dependencies are inferred from the claim text.