US Patent Issued to ZEON on July 15 for "Block-copolymer pellets, tacky adhesive composition, and stretch film" (Japanese Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,056, issued on July 15, was assigned to ZEON Corp. (Tokyo).

"Block-copolymer pellets, tacky adhesive composition, and stretch film" was invented by Yuta Ishii (Tokyo) and Atsushi Nozawa (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A block-copolymer pellet having 100 parts by weight of a pellet-shaped article of a block copolymer (A) and 0.01 to 5 parts by weight of a hydrocarbon-based dusting agent (B) is provided, wherein the block copolymer (A) has at least one aromatic vinyl polymer block and at least one conjugated diene polymer block, the hydrocarbon-based dusting agent (B) has a BET specific surface area of 0.50 to 3.00 m2/g, a volume...