US Patent Issued to Evonik Oxeno on July 28 for "Tetraisopentyl esters of butanetetracarboxylic acid, production thereof and use thereof as plasticizers" (German Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,365, issued on July 28, was assigned to Evonik Oxeno GmbH & Co. KG (Marl, Germany).

"Tetraisopentyl esters of butanetetracarboxylic acid, production thereof and use thereof as plasticizers" was invented by Imke Schulz (Luedinghausen, Germany), Michael Woelk-Fahrmann (Marl, Germany), Michael Grass (Haltern am See, Germany), Stephan Becker (Marl, Germany) and Michael van Eickels (Recklinghausen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "Tetraisopentyl esters of butanetetracarboxylic acid are useful as plasticizers or as part of a plasticizer composition for polymers. A process for the production thereof, plasticizer compositions containin...