ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,674, issued on Nov. 18, was assigned to CARL FREUDENBERG KG (Weinheim, Germany).
"Bituminous membranes with biodegradable binder" was invented by Arno Bieser (Weinheim, Germany), Katharina Ellmer (Monza, Italy), Sandra Villing-Falusi (Mannheim, Germany), Antonio La Porta (Mannheim, Germany) and Luca Assumma (Seregno, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "Subject of the invention is a nonwoven, wherein the nonwoven fibers are organic polymer fibers, and wherein the nonwoven is consolidated with an aqueous binder, wherein the binder comprises protein and a polyphenolic compound from natural origin. Preferably, the nonwoven carrier is hi...