Ignition resistant meltbrown or spunbonded insulation material

摘要

An ignition resistant fibrous material for use as insulation. The material comprises a multiplicity of meltblown or spunbonded thermoplastic filaments in combination with a multiplicity of nonlinear, nongraphitic carbonaceous fibers. The carbonaceous fibers have a Young's modulus of greater than 300,000 psi and reversible deflection ratio of greater than 1.2:1.