for subsequent molding a steam catalyst is introduced into a mold having a specific shape which causes the prepolymer to foam and polymerize the foaming action separates the fibers at the intersections to provide resiliency to the fiber mass the molded mass is then removed and can for example be attached to a chair seat and covered with decorative fabric as is standard in furniture manufacturing the chair cushion so formed is highly resilient and durable application_number US 72550896 A description the preferred method of the invention is shown in fig2 which schematically demonstrates an opened and blended polyester fiber mixture delivered to a web or batt forming machine such as a garnet or other type of air laid web forming machine in this method the thickness of the fiber batting formed will be approximately 1 2 to 3 4 of one inch 1 3 1 9 cm thick with a square foot 0 09 m 2 of the fiber batting weighing approximately 1 4 of an ounce 8 5 gm however an air laying machine such as a rando webber can be used to form a thicker single layer batting if desired the fiber batting is sprayed on both sides with a hydrocarbon solvent free foamable polyurethane prepolymer and is rolled into a cylindrically shaped mass the mass is then placed in a.