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US 12,195,914 B2Granted
Tufted carpet comprising a secondary carpet backing
AssigneeFreudenberg Performance Materials B.V.
InventorRob Tyler
Life of this patent
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Abstract
A tufted carpet including a tufted primary carpet backing, pile yarns tufted into the primary carpet backing, a secondary carpet backing adjoining to the primary carpet backing on the side of the primary carpet backing which exhibits backstitches and optionally a precoat and/or a polymer coat, wherein the secondary carpet backing including at least a reinforcement layer of fibers and the secondary carpet backing has an air permeability of at least 1000 l/m2·s, measured according to ISO 9237:1995.
Claims14
A tufted carpet comprising
- a tufted primary carpet backing,
- pile yarns tufted into the primary carpet backing, and
- a secondary carpet backing adjoining to the primary carpet backing on the side of the primary carpet backing which exhibits backstitches and a precoat and/or a polymer coat, wherein
- the secondary carpet backing comprises at least a reinforcement layer of fibers, with a tensile modulus of at least 25 GPa, of glass, carbon, basalt, stone wool, high modulus low shrinkage (HMLS) polyester, mineral material, aramid or ultra high molecular weight polyethylene that provide stability of the secondary carpet backing against elongation,
- the secondary carpet backing is impregnated by the precoat and/or the polymer coat,
- the secondary backing comprises two nonwoven layers of fibers, and
- the reinforcement layer is between the two nonwoven layers of fibers.
4 more elements
Dependencies are inferred from the claim text.