US Patent Issued to BASF on Sept. 1 for "Process for preparing high-reactivity isobutene homo- or copolymers" (Belarusian, German Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,113, issued on Sept. 1, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).

"Process for preparing high-reactivity isobutene homo- or copolymers" was invented by Paul Lederhose (Ludwigshafen, Germany), Klaus Muehlbach (Gruenstadt, Germany), Sergei V. Kostjuk (Minsk, Belarus), Irina V. Vasilenko (Minsk, Belarus) and Ivan A. Berezianko (Minsk, Belarus).

According to the abstract* released by the U.S. Patent & Trademark Office: "A novel process can be used for preparing high-reactivity isobutene homo- or copolymers, by polymerizing isobutene or an isobutene-containing monomer mixture in the presence of a polymerization catalyst."

The patent was filed on July 27, 2021, under A...