Latex-based barrier for surface coverings
OwnerRobert Pearce, Rene Menard +2inventors
InventorsRobert Pearce, Rene Menard, Victor Caldas, Claude Charest
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Abstract
The invention concerns a barrier composition, surface covering products incorporating a barrier layer, methods for making such surface covering products and methods for inhibiting or preventing the migration of sub-surface stains to the decorative portions of the surface covering products. The barrier composition comprises thermoplastic latex. The barrier composition is applied to the lower surface of the substrate of a decorative surface covering, or the lower surface of a basecoat on the substrate, and is then heat cured to obtain the barrier layer.
Claims27
A barrier layer which is part of a surface covering having at least a substrate with a lower surface, a decorative portion and the barrier layer which inhibits or prevents the migration of underlying stain into the decorative portion of the surface covering, wherein the barrier layer comprises a thermoplastic latex and is beneath the lower surface of the substrate.
A surface covering material comprising:
- a) a substrate having an upper surface and a lower surface;
- b) a decorative portion having one or more layers;
- c) one or more wear layers;
- and
- d) a barrier layer comprising a thermoplastic latex wherein the barrier layer is beneath the lower surface of the substrate.
A method for inhibiting or preventing the migration of underlying stain into the decorative portion of surface covering materials by providing a surface covering material comprising at least a substrate having an upper surface and lower surface, a barrier layer, and a decorative portion and securing the surface covering to a sub-surface wherein the barrier layer comprises a thermoplastic latex and is beneath the lower surface of the substrate.
A process for making a surface covering material having at least a substrate having an upper surface and a lower surface, a barrier layer formed from a barrier composition comprising thermoplastic latex, a decorative portion and, optionally, a basecoat having an upper surface and lower surface with the upper surface of the basecoat being on the lower surface of the substrate, wherein the barrier composition is applied to the lower surface of the substrate or the basecoat after all other processing steps are complete and the barrier composition is heated for about 5 seconds to about 2 minutes and 30 seconds at a temperature of about 200° C. to about 50° C. to form the barrier layer.
Dependencies are inferred from the claim text.