ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,446, issued on May 27.

"Recovering heavy hydrocarbons from plastic materials and geoformation" was invented by Mansour S. Bader (College Station, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is symmetry of cause and effect in nature; the thermal stabilities of PVC polymers and geoformation are pronounced examples. Methods are herein provided to make heat stabilizing additives for such polymers and geoformation. In one forward mode, an additive is made by generating a first acidic aqueous solution of an amine solvent and a trivalent cation within the first pKa of the latter; adding a divalent cation to the first acidic aqueous solution ...