US Patent Issued to 3M Innovative Properties on March 31 for "Acrylate oligomers, acrylate oligomer emulsions, and fluorine-free stain-release compositions containing the same" (Minnesota Inventors)

ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,409, issued on March 31, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Acrylate oligomers, acrylate oligomer emulsions, and fluorine-free stain-release compositions containing the same" was invented by Jeffrey T. Anderson (Lake Elmo, Minn.), Michael T. Hayes (St. Anthony, Minn.) and Angela J. Nixon (Rosemount, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention is an acrylate oligomer represented by the formula (I) where R1 is hydrogen or methyl; R2 is an alkyl group having from 2 to 18 carbons, inclusive; R3 is hydrogen or hydroxyl; Y is hydrogen or an initiator residue; Z is a single bond or methylene; an...