US Patent Issued to OMYA INTERNATIONAL on Nov. 25 for "Process for preparing a surface treated calcium carbonate material" (Swiss Inventors)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,479,973, issued on Nov. 25, was assigned to OMYA INTERNATIONAL AG (Oftringen, Switzerland).

"Process for preparing a surface treated calcium carbonate material" was invented by Samuel Rentsch (Spiegel bei Bern, Switzerland), Fabio Ippolito (Vordemwald, Switzerland) and Roman Marty (Allschwil, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a process for preparing a surface treated calcium carbonate-comprising material, a surface treated calcium carbonate-comprising material obtained by the process, an article comprising the surface treated calcium carbonate-comprising material, a polymer composition and the us...