ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,706, issued on Jan. 13, was assigned to SIKA TECHNOLOGY AG (Baar, Switzerland).
"Thermally expandable compositions comprising an endothermic blowing agent" was invented by Dusko Paripovic (Zurich, Switzerland), Loic Zingraff (Zurich, Switzerland) and Nicolae Bordeanu (Winterthur, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A thermally expandable composition includes at least one epoxy-functional polymer, at least one endothermic chemical blowing agent, and at least one curative selected from the group made of a urea, urea derivatives, guanidine derivatives, amidine derivatives, and imidazoles. Further, a baffle and/or a reinforcement ...