US Patent Issued on March 24 for "Articles of manufacture with polyurea capsules cross-linked with chitosan" (Wisconsin Inventor)

ALEXANDRIA, Va., March 24 -- United States Patent no. 12,582,956, issued on March 24.

"Articles of manufacture with polyurea capsules cross-linked with chitosan" was invented by Linsheng Feng (Menasha, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Novel articles of manufacture are described based on a combination of an adjunct material and microcapsules made by an improved process. The improved microcapsules are chitosan urea and encapsulate a benefit agent. The process comprises combining an adjunct material formed of microcapsules formed by a water phase comprising hydrolyzing chitosan in an acidic medium at a pH of 6.5 or less for an extended period and combining with a polyisocyanate. The reaction ...