Multilayer coating for flame retardant foam or fabric
AssigneeThe Texas A&M University System
InventorJaime C. Grunlan
Life of this patent
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Abstract
A method includes coating a substrate to provide a flame resistant substrate. In an embodiment, the method includes exposing the substrate to a cationic solution to produce a cationic layer deposited on the substrate. The cationic solution includes cationic materials. The cationic materials include polymers, nanoparticles, or any combinations thereof. The method further includes exposing the cationic layer to an anionic solution to produce an anionic layer deposited on the cationic layer to produce a bilayer. The bilayer is the anionic layer and the cationic layer. The anionic solution includes layerable materials.
Claims17
A method for coating a substrate to provide a flame resistant substrate, comprising:
- (A) exposing the substrate to a cationic solution to produce a cationic layer deposited on the substrate, wherein the cationic solution comprises cationic materials, and wherein the cationic materials comprise polyethylene oxide, polyallylamine, or any combinations thereof, and wherein the cationic materials do not comprise a clay;
- (B) exposing the cationic layer to an anionic solution to produce an anionic layer deposited on the cationic layer to produce the flame resistant substrate having a bilayer comprising the anionic layer and the cationic layer, wherein the anionic solution comprises a layerable material, and wherein the layerable material does not comprise a clay;
- wherein the substrate is a foam or fabric.
A method for coating a substrate to provide a flame resistant substrate, comprising:
- (A) exposing the substrate to a cationic solution to produce a cationic layer deposited on the substrate, wherein the cationic solution comprises cationic materials, wherein the cationic materials comprise polyethylene oxide, polyallylamine, or any combinations thereof, and wherein the cationic materials do not comprise a clay;
- (B) exposing the cationic layer to an anionic solution to produce an anionic layer deposited on the cationic layer to produce the flame resistant substrate having a bilayer comprising the anionic layer and the cationic layer, wherein the anionic solution comprises a layerable material, wherein the layerable material does not comprise a clay;
- (C) repeating steps (A) and (B) to produce a plurality of bilayers;
- and
- wherein the substrate is a foam or fabric, and wherein at least one of the cationic layers comprises cationic material that is different than the cationic material present in the cationic layer of another bilayer, at least one of the anionic layers comprises layerable material that is different than the layerable material present in the anionic layer of another bilayer, or any combinations thereof.
Dependencies are inferred from the claim text.