US Patent Issued to H.B. Fuller on May 6 for "Semi-crystalline polyester polyol and method of making the same" (Minnesota Inventors)

ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,599, issued on May 6, was assigned to H.B. Fuller Co. (St. Paul, Minn.).

"Semi-crystalline polyester polyol and method of making the same" was invented by Brian W. Carlson (Woodbury, Minn.), Justin Kaffenberger (Circle Pines, Minn.) and Alan R. Nahkala (Stillwater, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a semi-crystalline polyester polyol having an acid number less than 4 and derived from a saturated fatty component having a hydroxyl number less than 2, the saturated fatty component being selected from the group consisting of saturated fatty acid, saturated fatty acid ester, saturated oil, and combinations thereof, polyhyd...