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US 8,021,736 B2Granted
Substantially flame retardant-free 3GT carpet
AssigneeE.I. du Pont de Nemours and Company
InventorsJing C. Chang, Steven D. Beare, Gregory A. Urove, John J. Kozlowski
Life of this patent
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Abstract
Substantially flame retardant-free carpets comprising poly(trimethylene terephthalate) yarn having minimal carrier and, optionally, minimal antistatic agent, are disclosed, as are methods for making such carpets.
Claims16
A carpet comprising a poly(trimethylene terephthalate) yarn tufted into a backing with an adhesive applied thereto, wherein the poly(trimethylene terephthalate) yarn comprises a carrier in a range of from 25 to 3000 ppm by weight of the yarn, up to 760 ppm by weight of an antistatic agent;
- wherein the carpet is substantially flame retardant free, and wherein the carpet exhibits an average burn distance of >3 inches according to ASTM D-2859.
Dependencies are inferred from the claim text.