Method for manufacturing a carpet having a secondary backing substantially impervious to aqueous solutions and the resultant carpet
AssigneeE. I. Du Pont de Nemours and Company
InventorYashavant V. Vinod
Life of this patent
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Abstract
This invention relates to methods for making a carpet having a secondary backing which is substantially impervious to aqueous solutions. The process involves applying a fluorochemical onto the underside of a secondary backing material, followed by drying and curing of the fluorochemical. This invention also includes the resultant carpets prepared from such a process.
Claims10
A method for constructing a carpet having a secondary backing which is substantially impervious to aqueous solutions, comprising the steps of:
- a) forming a carpet comprising a primary backing having a surface with projecting tufts of yarn and an underside and a secondary backing, said secondary backing having a surface and an underside, wherein the underside of the primary backing is adhered to the surface of the secondary backing;
- b) applying a fluorochemical onto the underside of the secondary backing;
- and
- c) drying and curing the fluorochemical to render the secondary backing substantially impervious to aqueous solutions.
A method for constructing a carpet having a secondary backing which is substantially impervious to aqueous solutions, comprising the steps of:
- a) applying a fluorochemical onto a secondary backing having a surface and an opposing underside, wherein the fluorochemical is applied to the underside of the secondary backing;
- and
- b) contacting the surface of the secondary backing with a primary backing having tufts of yarn projecting from its surface and an adhesive-coated underside to form a carpet having a secondary backing which is substantially impervious to aqueous solutions.
A method for making a carpet having a secondary backing substantially impervious to aqueous solutions, comprising adhering a tufted primary backing to a secondary backing having a surface and opposing underside, wherein a sufficient amount of fluorochemical is cured onto the surface of the underside to render the secondary backing substantially impervious to aqueous solutions.
A method for rendering a secondary backing of a carpet comprising a tufted primary backing and secondary backing substantially impervious to aqueous solutions, comprising applying a sufficient amount of fluorochemical onto the underside of the secondary backing to render the secondary backing substantially impervious to aqueous solutions.
A tufted pile carpet having a secondary backing substantially impervious to aqueous solutions, comprising:
- a) a primary backing having a surface tufted with pile yarns and an underside;
- and
- b) a secondary backing having a surface and an underside, wherein the surface of the secondary backing is adhered to the underside of the primary backing, and the underside of the secondary backing is coated with a sufficient amount of fluorochemical to render the secondary backing substantially impervious to aqueous solutions.
Dependencies are inferred from the claim text.