Wet-lay flame barrier

Abstract

Nonwoven wet-lay flame barrier of the invention comprises a blend of water dispersible fibers, that are inherently fire resistant and nonshrinking to direct flame, along with water dispersible fibers extruded from polymers made with halogenated monomers and optionally including fiberglass and wood pulp, being together thermally bonded with a binder resin in a wet-lay manufacturing process to provide a relatively thin, but dense, durable flame barrier with excellent tensile, and durability properties in the end use application. The wet-lay flame barrier of this invention also allows for the manufacture of open flame resistant composite articles, while also permitting the continued use of conventional non-flame retardant dress cover fabrics, conventional non-flame retardant fiberfills and conventional non-flame retardant polyurethane foams.

Dependencies are inferred from the claim text.