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US 4,303,723 AGranted
Sound barrier material
AssigneeThe Goodyear Tire & Rubber Company
InventorPaul E. Oliveira
Life of this patent
Estimating the term…
Abstract
A sound barrier material for a road or a trainway comprised of a barium sulfate loaded chlorinated polyethylene laminated to each side of a foraminous metal member with a coating of about 0.05 to 8.13 centimeters in gauge.
Claims6
A sound and safety barrier material comprised of a metallic foraminous member sandwiched between two polyvinyl chloride impregnated mesh sheets, said sheets having a coating thereon of about 0.05 to 7.7 centimeters of a barium sulfate loaded chlorinated polyethylene.
Dependencies are inferred from the claim text.