Patent ID: 8487040

Claim:
A component for an air handler or hot air furnace which is a molded product of a molding composition comprising: a) a thermoset resin system comprising: an unsaturated polyester and reactive monomers; wherein the unsaturated polyester is a product of a condensation polymerization reaction between monomers consisting of propylene glycol, dicyclopentadiene, and maleic anhydride; wherein the reactive monomers comprise styrene and hydroxyethyl methacrylate; wherein the unsaturated polyester is dissolved in the reactive monomers; wherein the ratio of the reactive monomers to the unsaturated polyester resin is from 5:95 to 50:50; wherein the thermoset resin system is blended with from 20% to 45% by weight of the thermoset resin system of a low profile additive selected from the group consisting of polymethylmethacrylate, polyethylmethacrylate, polystyrene, polystyrene copolymer, polyvinyl acetate, polyethylene, saturated polyester, vinyl chloride-vinyl acetate copolymer, polyurethane, styrene butadiene copolymer, polycaprolactone, cellulose acetate butyrate, and combinations thereof; b) from 10% to 30% by weight of glass fiber, based on the weight of the molding composition; c) from 0.05% to 5% by weight of an initiator, based on the weight of the molding composition; and d) from 250 to 450 pph of a flame retardant composition consisting of aluminum hydroxide, based on the weight of the thermoset resin system; whereby the molding composition when molded meets the standard of UL 723.