ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,440,817, issued on Oct. 14, was assigned to SABIC GLOBAL TECHNOLOGIES B.V. (Bergen op Zoom, Netherlands).
"Polymerization process for olefins" was invented by Mpho Prudence Setlhaku (Gladbeck, Germany), Martin Alexander Zuideveld (Kelmis, Belgium) and Bobby Johannes Henricus Hubertus Smeets (Spaubeek, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a process for the polymerization of olefin monomers in the presence of a catalyst system, using a tubular pre-polymerization reactor, wherein the tubular pre-polymerization reactor has a length L and the flow of a catalyst system is introduced in the tubular pre-pol...