US Patent Issued to Evonik Oxeno on July 14 for "Tetraisopentyl esters of butanetetracarboxylic acid, production thereof and use thereof as plasticizers" (German Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,679,964, issued on July 14, 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 Johannes Kraft (Offenbach, Germany), Imke Schulz (Leudinghausen, Germany) and Michael Grass (Haltern am See, 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 containing the tetraisopentyl esters of butanetetracarboxylic acid, and plastics compositio...