US Patent Issued to Covestro (Netherlands) on Sept. 15 for "Cardanol-based reactive diluents and their use and preparation" (Dutch, Taiwanese Inventors)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,381, issued on Sept. 15, was assigned to Covestro (Netherlands) B.V. (Geleen, Netherlands).

"Cardanol-based reactive diluents and their use and preparation" was invented by Johan Franz Gradus Antonius Jansen (Geleen, Netherlands) and Simon Hsueh (New Taipei City, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein are compounds, including cardanol derivates based upon cashew nut shell liquid, of the following structure:wherein R1 is H or CH3; R2 is a CGamma alkyl chain having a number of H atoms defined by the expression X (2Y+1); wherein Y is from 9 to 15 and X is from 0.93 to 1.0; R3 is H or a C1-C4 alkyl chain, or H or CH3; an...