US Patent Issued to 3M Innovative Properties on Nov. 11 for "Substituted benzimidazole melt additives" (Minnesota Inventors)

ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,174, issued on Nov. 11, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Substituted benzimidazole melt additives" was invented by Fuming B. Li (Woodbury, Minn.), Nathan E. Schultz (Woodbury, Minn.), John M. Brandner (St. Paul, Minn.) and John M. Sebastian (Oakdale, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Charged polymeric webs, such as electret webs, include a thermoplastic resin and a charge-enhancing additive. The charge-enhancing additive is a substituted-benzimidazole compound. The electret webs may be a non-woven fibrous web or a film. The electret webs are suitable for use as filter media."

The patent was filed o...