Patent ID: 7225487

Claim:
An upholstered article, comprising: a core; and barrier material completely surrounding the core, wherein the barrier material comprises flame and heat-resistant material having cellulosic fibers and having a basis weight of less than or equal to about 9 ounces per square yard, wherein the barrier material is configured to prevent combustion of the core when the upholstered article is impinged with a gas flame, wherein the barrier material comprises a chemical coating of intumescent material applied as a liquid and dried and that is configured to swell and char in the presence of a flame so as to form a barrier to the flame and to heat generated by the flame, wherein the barrier material has a char strength of greater than or equal to 2 Newtons, and wherein a temperature on one side of the barrier material is prevented from reaching and exceeding 350° C. after about 50 seconds of flame exposure on an opposite side of the barrier material.