ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,661, issued on April 21, was assigned to Donaldson Co. Inc. (Bloomington, Minn.).
"Compositions and articles including perfluoropolyether bottlebrush polymers and methods of making and using same" was invented by Stephen K. Sontag (Plymouth, Minn.), Matthew P. Goertz (Bloomington, Minn.) and Andrew J. Dallas (Lakeville, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure describes compositions including a perfluoropolyether (PFPE) bottlebrush polymer, optionally blended with other fluoropolymers. The compositions may be disposed on an article, including, for example, a porous filtration media, to form a fluoropolymer-containing art...