US Patent Issued to DIC on Dec. 23 for "Deinking method, deinking agent for use in said deinking method, and plastic substrate recovery method using same" (Japanese Inventor)

ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,613, issued on Dec. 23, was assigned to DIC Corp. (Tokyo).

"Deinking method, deinking agent for use in said deinking method, and plastic substrate recovery method using same" was invented by Yasuhiro Sente (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides a deinking method including a step of peeling off and removing, from a plastic substrate having an ink layer, the ink layer by using a deinking agent that contains (a) 20 mass % or more of a water-soluble solvent and (b) 0.1 mass % to 10 mass % of an inorganic base. According to the invention, it is possible to provide a deinking method that can easily peel off an ink lay...