ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,552,908, issued on Feb. 17, was assigned to SIKA TECHNOLOGY AG (Baar, Switzerland).

"Thermally expandable compositions comprising a chemical blowing agent" was invented by Dusko Paripovic (Zurich, Switzerland) and Denise Storrer (Zurich, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A thermally expandable composition which includes at least one thermoplastic polymer, at least one chemical blowing agent, at least one free radical initiator, and at least one co-agent having at least two maleimide groups. The invention is also related to a baffle and/or a reinforcement element for hollow structures including the thermally expandable compositio...