ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,463, issued on Aug. 5, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).
"Water-based resin with elasticity for applications in cementing and subterranean structures" was invented by Elizabeth Contreras (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure relates to compositions including a poly-alkene maleic anhydride copolymer, a PEG, and a crosslinker selected from an ethyleneamine, a benzenetricarboxylic acid, a benzimidazole, and combinations thereof. The poly-alkene maleic anhydride copolymer includes repeat units I and II: where R1, R1', R2, and R2' are each independently selected from -H and -(C1-C5)alkyl. The ...