US Patent Issued to NISSAN CHEMICAL on June 3 for "Method for producing polymer used as base film for cell culture, and cell culture container" (Japanese Inventors)

ALEXANDRIA, Va., June 4 -- United States Patent no. 12,319,765, issued on June 3, was assigned to NISSAN CHEMICAL Corp. (Tokyo).

"Method for producing polymer used as base film for cell culture, and cell culture container" was invented by Kohei Suzuki (Funabashi, Japan), Yoshiomi Hiroi (Funabashi, Japan) and Natsuki Abe (Shiraoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides a method for producing a polymer used as a base film for cell culture which comprises (i) preparing a mixture containing (a) a monomer of formula (I):wherein Ua1 and Ua2 each independently represent a hydrogen atom or a linear or branched alkyl group having 1 to 5 carbon atoms, Ra1 represents a hydrogen ato...