US Patent Issued to SIKA TECHNOLOGY on Jan. 27 for "Thermally expandable compositions comprising a chemical blowing agent" (Swiss, Japanese Inventors)

ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,587, issued on Jan. 27, was assigned to SIKA TECHNOLOGY AG (Baar, Switzerland).

"Thermally expandable compositions comprising a chemical blowing agent" was invented by Nicolae Bordeanu (Winterthur, Switzerland), Shunsuke Yamada (Chigasaki, Japan) and Dusko Paripovic (Zurich, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A thermally expandable composition comprising a thermoplastic polymer compound and/or an elastomer compound, at least one blowing agent including at least one dicarboxylic acid salt of an aminoguanidine compound, optionally at least one free radical initiator and/or a vulcanization system, and at least one guanidine deri...