ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,905, issued on Jan. 20, was assigned to SIKA TECHNOLOGY AG (Baar, Switzerland).

"Amine-epoxy resin addition product" was invented by Edis Kasemi (Zurich, Switzerland), Oguz Sarioglu (Heilbronn, Germany), Urs Burckhardt (Zurich, Switzerland), Andreas Kramer (Zurich, Switzerland), Ursula Stadelmann (Zurich, Switzerland), Jochen Grotzinger (Schwabisch Gmund, Germany) and Uwe Von Der Bruggen (Meckesheim, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An amino-functional addition product from the reaction of at least one diamine of the formula (I) with at least one aromatic diepoxide in a stoichiometric ratio in the range of 1.3 to 1.7 mole diami...