ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,746,622, issued on Sept. 29, was assigned to LaserSharp FlexPak Services LLC (Vadnais Heights, Minn.).
"Laser processing of recyclable films" was invented by Justin Averbeck (North Branch, Minn.) and Juan Carlos Tinoco (Woodbury, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for laser scoring a film comprising at least 90% polyolefin comprises scoring a moving web of the film by utilizing the peak pulse power of a laser at a frequency of about 20 kHz or less to create a scored film with a score feature comprising a series of non-overlapping scored spots. In another aspect, a laser scored film comprises at least 90% polyolefin; and a sco...