Patents Assigned to Firma Carl Freusenberg KG
  • Tufted backing and method of manufacturing same
    Patent number: 7437807
    Abstract: A tufted backing and a method of manufacturing a tufted backing from thermoplastic polymer fibers or filaments that are processed to yield a spunbonded nonwoven are described, the spunbonded nonwoven containing only fibers or filaments having a titer of 1 to 15 dtex, the mass per unit area of the tufted backing being 70 to 110 g/m2, its density being 0.18 to 0.28 g/cm3 and the 5% modulus value in the machine direction being >60 N/5 cm, but at least 0.6 Nm2/g.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: October 21, 2008
    Assignee: Firma Carl Freusenberg KG
    Inventors: Rudolf Gärtner, Peter Sander, Detlef Barbier, Ulrike Maaβ, Engelbert Löcher, Ararad Emirze, Klaus Klein, Christine König