US Patent Issued to NAJRAN UNIVERSITY on June 30 for "Curable composition containing rice husk ash biosilica toughened epoxy resin" (Saudi Arabia Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,668,682, issued on June 30, was assigned to NAJRAN UNIVERSITY (Najran, Saudi Arabia).

"Curable composition containing rice husk ash biosilica toughened epoxy resin" was invented by Hassan A. Alshahrani (Najran, Saudi Arabia) and V. R. Arun Prakash (Najran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A curable composition includes at least one polyamine; an epoxy resin; and a silane-modified biosilica material. The silane-modified biosilica material is derived from rice husk and is present in the curable composition at a concentration of 0.01 to 10 wt. %, based on the total weight of the curable composition. The silane-modified biosilica ...