US Patent Issued to FUJIFILM on March 17 for "Gas separation membrane, gas separation module, gas separation apparatus, and polyimide compound" (Japanese Inventor)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,368, issued on March 17, was assigned to FUJIFILM Corp. (Tokyo).

"Gas separation membrane, gas separation module, gas separation apparatus, and polyimide compound" was invented by Koji Hironaka (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a polyimide compound including a repeating unit having an aromatic diamine component having a specific structure in which a side-chain benzylic position is regioselectively brominated, a gas separation membrane having a gas separation layer containing the polyimide compound, and a gas separation module and a gas separation apparatus each having the gas separation membrane."

The pat...