US Patent Issued to Oxiquim on Oct. 6 for "Blasthole stemming based on formaldehyde resins, system and charging method" (Chilean Inventors)

ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,754,001, issued on Oct. 6, was assigned to Oxiquim S.A. (Santiago, Chile).

"Blasthole stemming based on formaldehyde resins, system and charging method" was invented by Marcos Antonio Morales Herrera (Santiago, Chile) and Claudio Humberto Moya Saez (Santiago, Chile).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method for forming blasthole stemming for mining, which comprises charging a blasthole with a two-component mixture of resin and catalyst, wherein the two-component mixture produces a stiff foam in situ, and once hardened, the two-component mixture is then detonated. The invention also relates to a system for forming bla...