ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,612, issued on Jan. 27, was assigned to CARL FREUDENBERG KG (Weinheim, Germany).

"Curable fluoroelastomers having low swelling tendency" was invented by Arthur Lanziner (Heidelberg, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a curable fluoroelastomer composition having low swelling tendency, comprising: A) a curable fluoroelastomer; B) a curing system; and C) 0.1 wt.-% to 30 wt.-% of a nitrogen-containing polymer, selected from polyimide, polyimide, mixtures and/or copolymers thereof, each relative to the total weight of fluoroelastomer and nitrogen-containing polymer, the nitrogen-containing polymer being presen...