ALEXANDRIA, Va., June 2 -- United States Patent no. 12,644,031, issued on June 2, was assigned to KANSAI HELIOS AUSTRIA GMBH (Vienna).
"Composition" was invented by Mario Herker (Gumpoldskirchen, Austria), Johann Schellenberg (Baden, Austria), Karl Rametsteiner (Linz, Austria), Christian Breitwieser (Vienna) and Gerhard Typpelt (Vienna).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a composition, preferably for bonding together metal sheets, comprising: a. 1 part by mole of at least one linear epoxy resin with an average epoxy equivalent weight of 600 to 5,000 g/mole and an epoxy functionality of 2, b. 0.4 to 0.8 parts by mole of at least one non-linear epoxy resin having an ...