ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,438, issued on March 17, was assigned to YUPO Corp. (Tokyo).
"Adhesive sheet laminate and method for manufacturing same" was invented by Ryota Toyama (Ibaraki, Japan) and Hiroshi Koike (Ibaraki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to an adhesive sheet laminate which comprises a substrate layer composed of a thermoplastic resin composition (A) containing a polypropylene-based resin as a main component, an adhesive layer composed of a thermoplastic resin composition (B) containing a specific thermoplastic resin (b) as a main component and having a melt flow rate of 0.1 to 30 g/10 min, and a release layer...