US Patent Issued to Asahi Kasei on March 24 for "Polyethylene powder and molded article" (Japanese Inventor)

ALEXANDRIA, Va., March 24 -- United States Patent no. 12,583,954, issued on March 24, was assigned to Asahi Kasei K.K. (Tokyo).

"Polyethylene powder and molded article" was invented by Kazuya Shikata (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a polyethylene powder that completes swelling in a short time, offers a uniform appearance or shape of a molded article, and produces a molded article with smooth surface even by high-speed molding.The polyethylene powder satisfies (requirements 1 and 2). (Requirement 1): an intrinsic viscosity (IV) is 1.5 dL/g or more and 34.0 dL/g or less, and (requirement 2): a ratio Gamma0/Gamma1 of an elastic limit strain Gamma0 at a swelling time t (h) of 0 ...