US Patent Issued to SIKA TECHNOLOGY on July 28 for "Cycloaliphatic aldimine mixture" (Swiss Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,368, issued on July 28, was assigned to SIKA TECHNOLOGY AG (Baar, Switzerland).

"Cycloaliphatic aldimine mixture" was invented by Urs Burckhardt (Zurich, Switzerland) and Andreas Kramer (Zurich, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mixture of isomeric aldimines of the formulae (Ia), (Ib) and (Ic) in which the ratio of the trans,trans isomer (Ia) to the sum of the cis,trans isomer (Ib) and the cis,cis isomer (Ic) is in the range of 5/95 to 30/70, and its use as latent hardener for moisture-curing isocyanate-functional polyurethane compositions. The inventive mixture of isomeric aldimines enables polyurethane compositions with ...