Multilayer coating for flame retardant substrates
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 comprises cationic materials. The cationic materials comprise a polymer, a colloidal particle, a nanoparticle, a nitrogen-rich molecule, 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 layer comprising the anionic layer and the cationic layer. The anionic solution comprises a layerable material.
Claims20
A method for coating a substrate to provide a flame resistant substrate, comprising:
- (A) depositing a primer layer onto the substrate, wherein the primer layer comprises a surface, and wherein the surface of the primer layer proximate to the substrate is neutral or is charged with an attraction to the substrate;
- (B) exposing the substrate to a cationic solution to produce a cationic layer deposited on the substrate, wherein the cationic solution comprises a cationic material, and wherein the cationic material comprises a polymer, a colloidal particle, a nanoparticle, a nitrogen-rich molecule, or any combinations thereof, wherein the cationic material does not comprise a clay, and wherein the substrate comprises foam, fabric, or any combinations thereof;
- (C) 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 layer 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;
- and
- further wherein the primer layer comprises a primer layer material which is different from any cationic material in any cationic layer and any layerable material in any anionic layer.
A method for coating a substrate to provide a flame resistant substrate, comprising:
- (A) depositing a primer layer onto the substrate, wherein the primer layer comprises a surface, and wherein the surface of the primer layer proximate to the substrate is neutral or is charged with an attraction to the substrate;
- (B) exposing the substrate to an anionic solution to produce an anionic layer deposited on the substrate, wherein the anionic solution comprises a layerable material, wherein the layerable material does not comprise a clay, and wherein the substrate comprises foam, fabric, or any combinations thereof;
- (C) exposing the anionic layer to a cationic solution to produce a cationic layer deposited on the anionic layer to produce the flame resistant substrate having a layer comprising the anionic layer and the cationic layer, wherein the cationic solution comprises a cationic material, and wherein the cationic material comprises a polymer, a colloidal particle, a nanoparticle, a nitrogen-rich molecule, or any combinations thereof, and wherein the cationic material does not comprise a clay;
- and
- further wherein the primer layer comprises a primer layer material which is different from any cationic material in any cationic layer and any layerable material in any anionic layer.
Dependencies are inferred from the claim text.