US Patent Issued to Dart Container on April 7 for "Polyolefin-based composition for a lid and methods of making and using" (Michigan Inventors)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,346, issued on April 7, was assigned to Dart Container Corp. (Mason, Mich.).

"Polyolefin-based composition for a lid and methods of making and using" was invented by Chengtao Li (Novi, Mich.), Robert Allan Brubaker (Mason, Mich.) and Jacob Christopher Purcell (Howell, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Aspects of the present disclosure relate to a polyolefin composition and processes suitable for use in forming a lid for a hot food or beverage container that has a stiffness comparable to a similar lid made using high impact polystyrene and a density less than water at 23deg C."

The patent was filed on May 30, 2024, under Applicati...