US Patent Issued to Mitsubishi Gas Chemical on March 11 for "Stretched film, packaging material, and method for producing stretched film" (Japanese Inventors)

ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,108, issued on March 11, was assigned to Mitsubishi Gas Chemical Co. Inc. (Tokyo).

"Stretched film, packaging material, and method for producing stretched film" was invented by Masaki Yamanaka (Hiratsuka, Japan) and Takafumi Oda (Hiratsuka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A stretched film, which has excellent impact resistance and oxygen barrier properties and which suppresses the number of pinholes after being bent, a packaging material using the same, and a method for producing the stretched film are provided. The stretched film contains from 80 to 5 parts by mass of a polyamide resin (B) relative to from 20 to 95 parts by ma...