ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,398,563, issued on Aug. 26, was assigned to MAPEI S.P.A. (Milan).
"Construction material with improved lap integrity" was invented by Louis L. Grube (Deerfield Beach, Fla.), Mathew Snell (Deerfield Beach, Fla.) and Natalino Zanchetta (Deerfield Beach, Fla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a hybrid composite construction material and a process for creating it. The substrate used to create the new hybrid material has the same compound applied on at least the side lap area on the top side of the substrate and at least a portion of the back side of the substrate. The substrate can be pre-saturated with a selected compound prior to...