ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,815, issued on April 15, was assigned to Natural Polymers LLC (Cortland, Ill.).
"Pest-resistant spray foam formulations" was invented by Benjamin Brown (Saint Charles, Ill.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Pest-resistant polyurethane spray foam formulations and products, including building insulation, are described. The "B" side of the formulation comprises water; a polyol composition comprising one or more polyols selected from glycerin-sucrose polyols, Mannich polyols, and aromatic polyester polyols, catalyst(s); surfactant(s); a blowing agent; and 0.5 to 5 wt. %, based on the amount of spray foam formulation, of a composition compris...