US Patent Issued to DELFORTGROUP on Oct. 14 for "Heat-resistant wrapper paper for aerosol-generating articles" (Austrian Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,137, issued on Oct. 14, was assigned to DELFORTGROUP AG (Traun, Austria).

"Heat-resistant wrapper paper for aerosol-generating articles" was invented by Roland Zitturi (Innsbruck, Austria) and Dietmar Volgger (Gnadenwald, Austria).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention concerns a wrapper paper which is suitable for use on aerosol-generating articles and which comprises pulp fibers and a char-former, wherein the pulp fibers make up at least 70% and at most 95% of the mass of the wrapper paper and the char-former is contained in a concentration of at least 5% and at most 20% with respect to the mass of the wrapper paper and is pre...